diff --git a/build/bundle.js b/build/bundle.js new file mode 100644 index 0000000..9cd49d3 --- /dev/null +++ b/build/bundle.js @@ -0,0 +1,48783 @@ +/******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; +/******/ +/******/ // The require function +/******/ function __webpack_require__(moduleId) { +/******/ +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; +/******/ +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; +/******/ +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); +/******/ +/******/ // Flag the module as loaded +/******/ module.loaded = true; +/******/ +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } +/******/ +/******/ +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; +/******/ +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; +/******/ +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; +/******/ +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + var _framework = __webpack_require__(1); + + var _framework2 = _interopRequireDefault(_framework); + + var _marching_cube_LUT = __webpack_require__(8); + + var _marching_cube_LUT2 = _interopRequireDefault(_marching_cube_LUT); + + var _marching_cubes = __webpack_require__(9); + + var _marching_cubes2 = _interopRequireDefault(_marching_cubes); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + + __webpack_require__(12); + + // Credit: + // http://jamie-wong.com/2014/08/19/metaballs-and-marching-squares/ + // http://paulbourke.net/geometry/polygonise/ + + var THREE = __webpack_require__(6); // older modules are imported like this. You shouldn't have to worry about this much + + var DEFAULT_VISUAL_DEBUG = false; + var DEFAULT_ISO_LEVEL = 1.0; + var DEFAULT_GRID_RES = 30; + var DEFAULT_GRID_WIDTH = 15; + var DEFAULT_NUM_METABALLS = 5; + var DEFAULT_MIN_RADIUS = 1.0; + var DEFAULT_MAX_RADIUS = 1.5; + var DEFAULT_MAX_SPEED = 0.05; + + var App = { + // + marchingCubes: undefined, + config: { + // Global control of all visual debugging. + // This can be set to false to disallow any memory allocation of visual debugging components. + // **Note**: If your application experiences performance drop, disable this flag. + visualDebug: DEFAULT_VISUAL_DEBUG, + + // The isolevel for marching cubes + isolevel: DEFAULT_ISO_LEVEL, + + // Grid resolution in each dimension. If gridRes = 4, then we have a 4x4x4 grid + gridRes: DEFAULT_GRID_RES, + + // Total width of grid + gridWidth: DEFAULT_GRID_WIDTH, + + // Width of each voxel + // Ideally, we want the voxel to be small (higher resolution) + gridCellWidth: DEFAULT_GRID_WIDTH / DEFAULT_GRID_RES, + + // Number of metaballs + numMetaballs: DEFAULT_NUM_METABALLS, + + // Minimum radius of a metaball + minRadius: DEFAULT_MIN_RADIUS, + + // Maxium radius of a metaball + maxRadius: DEFAULT_MAX_RADIUS, + + // Maximum speed of a metaball + maxSpeed: DEFAULT_MAX_SPEED + }, + + // Scene's framework objects + camera: undefined, + scene: undefined, + renderer: undefined, + + // Play/pause control for the simulation + isPaused: false + }; + + // called after the scene loads + function onLoad(framework) { + var scene = framework.scene, + camera = framework.camera, + renderer = framework.renderer, + gui = framework.gui, + stats = framework.stats; + + App.scene = scene; + App.camera = camera; + App.renderer = renderer; + + renderer.setClearColor(0xbfd1e5); + scene.add(new THREE.AxisHelper(20)); + + setupCamera(App.camera); + setupLights(App.scene); + setupScene(App.scene); + setupGUI(gui); + } + + // called on frame updates + function onUpdate(framework) { + + if (App.marchingCubes) { + App.marchingCubes.update(); + } + } + + function setupCamera(camera) { + // set camera position + camera.position.set(5, 5, 30); + camera.lookAt(new THREE.Vector3(0, 0, 0)); + } + + function setupLights(scene) { + + // Directional light + var directionalLight = new THREE.DirectionalLight(0xffffff, 1); + directionalLight.color.setHSL(0.1, 1, 0.95); + directionalLight.position.set(-10, -10, 10); + directionalLight.position.multiplyScalar(10); + + scene.add(directionalLight); + } + + function setupScene(scene) { + App.marchingCubes = new _marching_cubes2.default(App); + } + + function clearScene() { + var scene = App.scene; + scene.children.forEach(function (object) { + scene.remove(object); + }); + scene.add(new THREE.AxisHelper(20)); + setupCamera(App.camera); + setupLights(App.scene); + setupScene(App.scene); + } + + function setupGUI(gui) { + + // more information here: https://workshop.chromeexperiments.com/examples/gui/#1--Basic-Usage + + // --- CONFIG --- + gui.add(App, 'isPaused').onChange(function (value) { + App.isPaused = value; + if (value) { + App.marchingCubes.pause(); + } else { + App.marchingCubes.play(); + } + }); + + gui.add(App.config, 'numMetaballs', 1, 10).step(1).onChange(function (value) { + clearScene(); + App.config.numMetaballs = value; + App.marchingCubes.init(App); + }); + } + + // when the scene is done initializing, it will call onLoad, then on frame updates, call onUpdate + _framework2.default.init(onLoad, onUpdate); + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + var _statsJs = __webpack_require__(2); + + var _statsJs2 = _interopRequireDefault(_statsJs); + + var _datGui = __webpack_require__(3); + + var _datGui2 = _interopRequireDefault(_datGui); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + + var THREE = __webpack_require__(6); + var OrbitControls = __webpack_require__(7)(THREE); + + + // when the scene is done initializing, the function passed as `callback` will be executed + // then, every frame, the function passed as `update` will be executed + function init(callback, update) { + var stats = new _statsJs2.default(); + stats.setMode(1); + stats.domElement.style.position = 'absolute'; + stats.domElement.style.left = '0px'; + stats.domElement.style.top = '0px'; + document.body.appendChild(stats.domElement); + + var gui = new _datGui2.default.GUI(); + + var framework = { + gui: gui, + stats: stats + }; + + // run this function after the window loads + window.addEventListener('load', function () { + + var scene = new THREE.Scene(); + var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000); + var renderer = new THREE.WebGLRenderer({ antialias: true }); + renderer.setPixelRatio(window.devicePixelRatio); + renderer.setSize(window.innerWidth, window.innerHeight); + renderer.setClearColor(0x020202, 0); + + var controls = new OrbitControls(camera, renderer.domElement); + controls.enableDamping = true; + controls.enableZoom = true; + controls.target.set(0, 0, 0); + controls.rotateSpeed = 0.3; + controls.zoomSpeed = 1.0; + controls.panSpeed = 2.0; + controls.addEventListener('change', function () { + camera.hasMoved = true; + }); + + document.body.appendChild(renderer.domElement); + + // resize the canvas when the window changes + window.addEventListener('resize', function () { + camera.aspect = window.innerWidth / window.innerHeight; + camera.updateProjectionMatrix(); + renderer.setSize(window.innerWidth, window.innerHeight); + }, false); + + // assign THREE.js objects to the object we will return + framework.scene = scene; + framework.camera = camera; + framework.renderer = renderer; + + // begin the animation loop + (function tick() { + stats.begin(); + update(framework); // perform any requested updates + renderer.render(scene, camera); // render the scene + stats.end(); + requestAnimationFrame(tick); // register to call this again when the browser renders a new frame + })(); + + // we will pass the scene, gui, renderer, camera, etc... to the callback function + return callback(framework); + }); + } + + exports.default = { + init: init + }; + +/***/ }, +/* 2 */ +/***/ function(module, exports) { + + // stats.js - http://github.com/mrdoob/stats.js + var Stats=function(){var l=Date.now(),m=l,g=0,n=Infinity,o=0,h=0,p=Infinity,q=0,r=0,s=0,f=document.createElement("div");f.id="stats";f.addEventListener("mousedown",function(b){b.preventDefault();t(++s%2)},!1);f.style.cssText="width:80px;opacity:0.9;cursor:pointer";var a=document.createElement("div");a.id="fps";a.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#002";f.appendChild(a);var i=document.createElement("div");i.id="fpsText";i.style.cssText="color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px"; + i.innerHTML="FPS";a.appendChild(i);var c=document.createElement("div");c.id="fpsGraph";c.style.cssText="position:relative;width:74px;height:30px;background-color:#0ff";for(a.appendChild(c);74>c.children.length;){var j=document.createElement("span");j.style.cssText="width:1px;height:30px;float:left;background-color:#113";c.appendChild(j)}var d=document.createElement("div");d.id="ms";d.style.cssText="padding:0 0 3px 3px;text-align:left;background-color:#020;display:none";f.appendChild(d);var k=document.createElement("div"); + k.id="msText";k.style.cssText="color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px";k.innerHTML="MS";d.appendChild(k);var e=document.createElement("div");e.id="msGraph";e.style.cssText="position:relative;width:74px;height:30px;background-color:#0f0";for(d.appendChild(e);74>e.children.length;)j=document.createElement("span"),j.style.cssText="width:1px;height:30px;float:left;background-color:#131",e.appendChild(j);var t=function(b){s=b;switch(s){case 0:a.style.display= + "block";d.style.display="none";break;case 1:a.style.display="none",d.style.display="block"}};return{REVISION:12,domElement:f,setMode:t,begin:function(){l=Date.now()},end:function(){var b=Date.now();g=b-l;n=Math.min(n,g);o=Math.max(o,g);k.textContent=g+" MS ("+n+"-"+o+")";var a=Math.min(30,30-30*(g/200));e.appendChild(e.firstChild).style.height=a+"px";r++;b>m+1E3&&(h=Math.round(1E3*r/(b-m)),p=Math.min(p,h),q=Math.max(q,h),i.textContent=h+" FPS ("+p+"-"+q+")",a=Math.min(30,30-30*(h/100)),c.appendChild(c.firstChild).style.height= + a+"px",m=b,r=0);return b},update:function(){l=this.end()}}};"object"===typeof module&&(module.exports=Stats); + + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + module.exports = __webpack_require__(4) + module.exports.color = __webpack_require__(5) + +/***/ }, +/* 4 */ +/***/ function(module, exports) { + + /** + * dat-gui JavaScript Controller Library + * http://code.google.com/p/dat-gui + * + * Copyright 2011 Data Arts Team, Google Creative Lab + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + */ + + /** @namespace */ + var dat = module.exports = dat || {}; + + /** @namespace */ + dat.gui = dat.gui || {}; + + /** @namespace */ + dat.utils = dat.utils || {}; + + /** @namespace */ + dat.controllers = dat.controllers || {}; + + /** @namespace */ + dat.dom = dat.dom || {}; + + /** @namespace */ + dat.color = dat.color || {}; + + dat.utils.css = (function () { + return { + load: function (url, doc) { + doc = doc || document; + var link = doc.createElement('link'); + link.type = 'text/css'; + link.rel = 'stylesheet'; + link.href = url; + doc.getElementsByTagName('head')[0].appendChild(link); + }, + inject: function(css, doc) { + doc = doc || document; + var injected = document.createElement('style'); + injected.type = 'text/css'; + injected.innerHTML = css; + doc.getElementsByTagName('head')[0].appendChild(injected); + } + } + })(); + + + dat.utils.common = (function () { + + var ARR_EACH = Array.prototype.forEach; + var ARR_SLICE = Array.prototype.slice; + + /** + * Band-aid methods for things that should be a lot easier in JavaScript. + * Implementation and structure inspired by underscore.js + * http://documentcloud.github.com/underscore/ + */ + + return { + + BREAK: {}, + + extend: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (!this.isUndefined(obj[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + defaults: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (this.isUndefined(target[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + compose: function() { + var toCall = ARR_SLICE.call(arguments); + return function() { + var args = ARR_SLICE.call(arguments); + for (var i = toCall.length -1; i >= 0; i--) { + args = [toCall[i].apply(this, args)]; + } + return args[0]; + } + }, + + each: function(obj, itr, scope) { + + + if (ARR_EACH && obj.forEach === ARR_EACH) { + + obj.forEach(itr, scope); + + } else if (obj.length === obj.length + 0) { // Is number but not NaN + + for (var key = 0, l = obj.length; key < l; key++) + if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) + return; + + } else { + + for (var key in obj) + if (itr.call(scope, obj[key], key) === this.BREAK) + return; + + } + + }, + + defer: function(fnc) { + setTimeout(fnc, 0); + }, + + toArray: function(obj) { + if (obj.toArray) return obj.toArray(); + return ARR_SLICE.call(obj); + }, + + isUndefined: function(obj) { + return obj === undefined; + }, + + isNull: function(obj) { + return obj === null; + }, + + isNaN: function(obj) { + return obj !== obj; + }, + + isArray: Array.isArray || function(obj) { + return obj.constructor === Array; + }, + + isObject: function(obj) { + return obj === Object(obj); + }, + + isNumber: function(obj) { + return obj === obj+0; + }, + + isString: function(obj) { + return obj === obj+''; + }, + + isBoolean: function(obj) { + return obj === false || obj === true; + }, + + isFunction: function(obj) { + return Object.prototype.toString.call(obj) === '[object Function]'; + } + + }; + + })(); + + + dat.controllers.Controller = (function (common) { + + /** + * @class An "abstract" class that represents a given property of an object. + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var Controller = function(object, property) { + + this.initialValue = object[property]; + + /** + * Those who extend this class will put their DOM elements in here. + * @type {DOMElement} + */ + this.domElement = document.createElement('div'); + + /** + * The object to manipulate + * @type {Object} + */ + this.object = object; + + /** + * The name of the property to manipulate + * @type {String} + */ + this.property = property; + + /** + * The function to be called on change. + * @type {Function} + * @ignore + */ + this.__onChange = undefined; + + /** + * The function to be called on finishing change. + * @type {Function} + * @ignore + */ + this.__onFinishChange = undefined; + + }; + + common.extend( + + Controller.prototype, + + /** @lends dat.controllers.Controller.prototype */ + { + + /** + * Specify that a function fire every time someone changes the value with + * this Controller. + * + * @param {Function} fnc This function will be called whenever the value + * is modified via this Controller. + * @returns {dat.controllers.Controller} this + */ + onChange: function(fnc) { + this.__onChange = fnc; + return this; + }, + + /** + * Specify that a function fire every time someone "finishes" changing + * the value wih this Controller. Useful for values that change + * incrementally like numbers or strings. + * + * @param {Function} fnc This function will be called whenever + * someone "finishes" changing the value via this Controller. + * @returns {dat.controllers.Controller} this + */ + onFinishChange: function(fnc) { + this.__onFinishChange = fnc; + return this; + }, + + /** + * Change the value of object[property] + * + * @param {Object} newValue The new value of object[property] + */ + setValue: function(newValue) { + this.object[this.property] = newValue; + if (this.__onChange) { + this.__onChange.call(this, newValue); + } + this.updateDisplay(); + return this; + }, + + /** + * Gets the value of object[property] + * + * @returns {Object} The current value of object[property] + */ + getValue: function() { + return this.object[this.property]; + }, + + /** + * Refreshes the visual display of a Controller in order to keep sync + * with the object's current value. + * @returns {dat.controllers.Controller} this + */ + updateDisplay: function() { + return this; + }, + + /** + * @returns {Boolean} true if the value has deviated from initialValue + */ + isModified: function() { + return this.initialValue !== this.getValue() + } + + } + + ); + + return Controller; + + + })(dat.utils.common); + + + dat.dom.dom = (function (common) { + + var EVENT_MAP = { + 'HTMLEvents': ['change'], + 'MouseEvents': ['click','mousemove','mousedown','mouseup', 'mouseover'], + 'KeyboardEvents': ['keydown'] + }; + + var EVENT_MAP_INV = {}; + common.each(EVENT_MAP, function(v, k) { + common.each(v, function(e) { + EVENT_MAP_INV[e] = k; + }); + }); + + var CSS_VALUE_PIXELS = /(\d+(\.\d+)?)px/; + + function cssValueToPixels(val) { + + if (val === '0' || common.isUndefined(val)) return 0; + + var match = val.match(CSS_VALUE_PIXELS); + + if (!common.isNull(match)) { + return parseFloat(match[1]); + } + + // TODO ...ems? %? + + return 0; + + } + + /** + * @namespace + * @member dat.dom + */ + var dom = { + + /** + * + * @param elem + * @param selectable + */ + makeSelectable: function(elem, selectable) { + + if (elem === undefined || elem.style === undefined) return; + + elem.onselectstart = selectable ? function() { + return false; + } : function() { + }; + + elem.style.MozUserSelect = selectable ? 'auto' : 'none'; + elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none'; + elem.unselectable = selectable ? 'on' : 'off'; + + }, + + /** + * + * @param elem + * @param horizontal + * @param vertical + */ + makeFullscreen: function(elem, horizontal, vertical) { + + if (common.isUndefined(horizontal)) horizontal = true; + if (common.isUndefined(vertical)) vertical = true; + + elem.style.position = 'absolute'; + + if (horizontal) { + elem.style.left = 0; + elem.style.right = 0; + } + if (vertical) { + elem.style.top = 0; + elem.style.bottom = 0; + } + + }, + + /** + * + * @param elem + * @param eventType + * @param params + */ + fakeEvent: function(elem, eventType, params, aux) { + params = params || {}; + var className = EVENT_MAP_INV[eventType]; + if (!className) { + throw new Error('Event type ' + eventType + ' not supported.'); + } + var evt = document.createEvent(className); + switch (className) { + case 'MouseEvents': + var clientX = params.x || params.clientX || 0; + var clientY = params.y || params.clientY || 0; + evt.initMouseEvent(eventType, params.bubbles || false, + params.cancelable || true, window, params.clickCount || 1, + 0, //screen X + 0, //screen Y + clientX, //client X + clientY, //client Y + false, false, false, false, 0, null); + break; + case 'KeyboardEvents': + var init = evt.initKeyboardEvent || evt.initKeyEvent; // webkit || moz + common.defaults(params, { + cancelable: true, + ctrlKey: false, + altKey: false, + shiftKey: false, + metaKey: false, + keyCode: undefined, + charCode: undefined + }); + init(eventType, params.bubbles || false, + params.cancelable, window, + params.ctrlKey, params.altKey, + params.shiftKey, params.metaKey, + params.keyCode, params.charCode); + break; + default: + evt.initEvent(eventType, params.bubbles || false, + params.cancelable || true); + break; + } + common.defaults(evt, aux); + elem.dispatchEvent(evt); + }, + + /** + * + * @param elem + * @param event + * @param func + * @param bool + */ + bind: function(elem, event, func, bool) { + bool = bool || false; + if (elem.addEventListener) + elem.addEventListener(event, func, bool); + else if (elem.attachEvent) + elem.attachEvent('on' + event, func); + return dom; + }, + + /** + * + * @param elem + * @param event + * @param func + * @param bool + */ + unbind: function(elem, event, func, bool) { + bool = bool || false; + if (elem.removeEventListener) + elem.removeEventListener(event, func, bool); + else if (elem.detachEvent) + elem.detachEvent('on' + event, func); + return dom; + }, + + /** + * + * @param elem + * @param className + */ + addClass: function(elem, className) { + if (elem.className === undefined) { + elem.className = className; + } else if (elem.className !== className) { + var classes = elem.className.split(/ +/); + if (classes.indexOf(className) == -1) { + classes.push(className); + elem.className = classes.join(' ').replace(/^\s+/, '').replace(/\s+$/, ''); + } + } + return dom; + }, + + /** + * + * @param elem + * @param className + */ + removeClass: function(elem, className) { + if (className) { + if (elem.className === undefined) { + // elem.className = className; + } else if (elem.className === className) { + elem.removeAttribute('class'); + } else { + var classes = elem.className.split(/ +/); + var index = classes.indexOf(className); + if (index != -1) { + classes.splice(index, 1); + elem.className = classes.join(' '); + } + } + } else { + elem.className = undefined; + } + return dom; + }, + + hasClass: function(elem, className) { + return new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)').test(elem.className) || false; + }, + + /** + * + * @param elem + */ + getWidth: function(elem) { + + var style = getComputedStyle(elem); + + return cssValueToPixels(style['border-left-width']) + + cssValueToPixels(style['border-right-width']) + + cssValueToPixels(style['padding-left']) + + cssValueToPixels(style['padding-right']) + + cssValueToPixels(style['width']); + }, + + /** + * + * @param elem + */ + getHeight: function(elem) { + + var style = getComputedStyle(elem); + + return cssValueToPixels(style['border-top-width']) + + cssValueToPixels(style['border-bottom-width']) + + cssValueToPixels(style['padding-top']) + + cssValueToPixels(style['padding-bottom']) + + cssValueToPixels(style['height']); + }, + + /** + * + * @param elem + */ + getOffset: function(elem) { + var offset = {left: 0, top:0}; + if (elem.offsetParent) { + do { + offset.left += elem.offsetLeft; + offset.top += elem.offsetTop; + } while (elem = elem.offsetParent); + } + return offset; + }, + + // http://stackoverflow.com/posts/2684561/revisions + /** + * + * @param elem + */ + isActive: function(elem) { + return elem === document.activeElement && ( elem.type || elem.href ); + } + + }; + + return dom; + + })(dat.utils.common); + + + dat.controllers.OptionController = (function (Controller, dom, common) { + + /** + * @class Provides a select input to alter the property of an object, using a + * list of accepted values. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object|string[]} options A map of labels to acceptable values, or + * a list of acceptable string values. + * + * @member dat.controllers + */ + var OptionController = function(object, property, options) { + + OptionController.superclass.call(this, object, property); + + var _this = this; + + /** + * The drop down menu + * @ignore + */ + this.__select = document.createElement('select'); + + if (common.isArray(options)) { + var map = {}; + common.each(options, function(element) { + map[element] = element; + }); + options = map; + } + + common.each(options, function(value, key) { + + var opt = document.createElement('option'); + opt.innerHTML = key; + opt.setAttribute('value', value); + _this.__select.appendChild(opt); + + }); + + // Acknowledge original value + this.updateDisplay(); + + dom.bind(this.__select, 'change', function() { + var desiredValue = this.options[this.selectedIndex].value; + _this.setValue(desiredValue); + }); + + this.domElement.appendChild(this.__select); + + }; + + OptionController.superclass = Controller; + + common.extend( + + OptionController.prototype, + Controller.prototype, + + { + + setValue: function(v) { + var toReturn = OptionController.superclass.prototype.setValue.call(this, v); + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + return toReturn; + }, + + updateDisplay: function() { + this.__select.value = this.getValue(); + return OptionController.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + return OptionController; + + })(dat.controllers.Controller, + dat.dom.dom, + dat.utils.common); + + + dat.controllers.NumberController = (function (Controller, common) { + + /** + * @class Represents a given property of an object that is a number. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object} [params] Optional parameters + * @param {Number} [params.min] Minimum allowed value + * @param {Number} [params.max] Maximum allowed value + * @param {Number} [params.step] Increment by which to change value + * + * @member dat.controllers + */ + var NumberController = function(object, property, params) { + + NumberController.superclass.call(this, object, property); + + params = params || {}; + + this.__min = params.min; + this.__max = params.max; + this.__step = params.step; + + if (common.isUndefined(this.__step)) { + + if (this.initialValue == 0) { + this.__impliedStep = 1; // What are we, psychics? + } else { + // Hey Doug, check this out. + this.__impliedStep = Math.pow(10, Math.floor(Math.log(this.initialValue)/Math.LN10))/10; + } + + } else { + + this.__impliedStep = this.__step; + + } + + this.__precision = numDecimals(this.__impliedStep); + + + }; + + NumberController.superclass = Controller; + + common.extend( + + NumberController.prototype, + Controller.prototype, + + /** @lends dat.controllers.NumberController.prototype */ + { + + setValue: function(v) { + + if (this.__min !== undefined && v < this.__min) { + v = this.__min; + } else if (this.__max !== undefined && v > this.__max) { + v = this.__max; + } + + if (this.__step !== undefined && v % this.__step != 0) { + v = Math.round(v / this.__step) * this.__step; + } + + return NumberController.superclass.prototype.setValue.call(this, v); + + }, + + /** + * Specify a minimum value for object[property]. + * + * @param {Number} minValue The minimum value for + * object[property] + * @returns {dat.controllers.NumberController} this + */ + min: function(v) { + this.__min = v; + return this; + }, + + /** + * Specify a maximum value for object[property]. + * + * @param {Number} maxValue The maximum value for + * object[property] + * @returns {dat.controllers.NumberController} this + */ + max: function(v) { + this.__max = v; + return this; + }, + + /** + * Specify a step value that dat.controllers.NumberController + * increments by. + * + * @param {Number} stepValue The step value for + * dat.controllers.NumberController + * @default if minimum and maximum specified increment is 1% of the + * difference otherwise stepValue is 1 + * @returns {dat.controllers.NumberController} this + */ + step: function(v) { + this.__step = v; + return this; + } + + } + + ); + + function numDecimals(x) { + x = x.toString(); + if (x.indexOf('.') > -1) { + return x.length - x.indexOf('.') - 1; + } else { + return 0; + } + } + + return NumberController; + + })(dat.controllers.Controller, + dat.utils.common); + + + dat.controllers.NumberControllerBox = (function (NumberController, dom, common) { + + /** + * @class Represents a given property of an object that is a number and + * provides an input element with which to manipulate it. + * + * @extends dat.controllers.Controller + * @extends dat.controllers.NumberController + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Object} [params] Optional parameters + * @param {Number} [params.min] Minimum allowed value + * @param {Number} [params.max] Maximum allowed value + * @param {Number} [params.step] Increment by which to change value + * + * @member dat.controllers + */ + var NumberControllerBox = function(object, property, params) { + + this.__truncationSuspended = false; + + NumberControllerBox.superclass.call(this, object, property, params); + + var _this = this; + + /** + * {Number} Previous mouse y position + * @ignore + */ + var prev_y; + + this.__input = document.createElement('input'); + this.__input.setAttribute('type', 'text'); + + // Makes it so manually specified values are not truncated. + + dom.bind(this.__input, 'change', onChange); + dom.bind(this.__input, 'blur', onBlur); + dom.bind(this.__input, 'mousedown', onMouseDown); + dom.bind(this.__input, 'keydown', function(e) { + + // When pressing entire, you can be as precise as you want. + if (e.keyCode === 13) { + _this.__truncationSuspended = true; + this.blur(); + _this.__truncationSuspended = false; + } + + }); + + function onChange() { + var attempted = parseFloat(_this.__input.value); + if (!common.isNaN(attempted)) _this.setValue(attempted); + } + + function onBlur() { + onChange(); + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + function onMouseDown(e) { + dom.bind(window, 'mousemove', onMouseDrag); + dom.bind(window, 'mouseup', onMouseUp); + prev_y = e.clientY; + } + + function onMouseDrag(e) { + + var diff = prev_y - e.clientY; + _this.setValue(_this.getValue() + diff * _this.__impliedStep); + + prev_y = e.clientY; + + } + + function onMouseUp() { + dom.unbind(window, 'mousemove', onMouseDrag); + dom.unbind(window, 'mouseup', onMouseUp); + } + + this.updateDisplay(); + + this.domElement.appendChild(this.__input); + + }; + + NumberControllerBox.superclass = NumberController; + + common.extend( + + NumberControllerBox.prototype, + NumberController.prototype, + + { + + updateDisplay: function() { + + this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision); + return NumberControllerBox.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + function roundToDecimal(value, decimals) { + var tenTo = Math.pow(10, decimals); + return Math.round(value * tenTo) / tenTo; + } + + return NumberControllerBox; + + })(dat.controllers.NumberController, + dat.dom.dom, + dat.utils.common); + + + dat.controllers.NumberControllerSlider = (function (NumberController, dom, css, common, styleSheet) { + + /** + * @class Represents a given property of an object that is a number, contains + * a minimum and maximum, and provides a slider element with which to + * manipulate it. It should be noted that the slider element is made up of + * <div> tags, not the html5 + * <slider> element. + * + * @extends dat.controllers.Controller + * @extends dat.controllers.NumberController + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * @param {Number} minValue Minimum allowed value + * @param {Number} maxValue Maximum allowed value + * @param {Number} stepValue Increment by which to change value + * + * @member dat.controllers + */ + var NumberControllerSlider = function(object, property, min, max, step) { + + NumberControllerSlider.superclass.call(this, object, property, { min: min, max: max, step: step }); + + var _this = this; + + this.__background = document.createElement('div'); + this.__foreground = document.createElement('div'); + + + + dom.bind(this.__background, 'mousedown', onMouseDown); + + dom.addClass(this.__background, 'slider'); + dom.addClass(this.__foreground, 'slider-fg'); + + function onMouseDown(e) { + + dom.bind(window, 'mousemove', onMouseDrag); + dom.bind(window, 'mouseup', onMouseUp); + + onMouseDrag(e); + } + + function onMouseDrag(e) { + + e.preventDefault(); + + var offset = dom.getOffset(_this.__background); + var width = dom.getWidth(_this.__background); + + _this.setValue( + map(e.clientX, offset.left, offset.left + width, _this.__min, _this.__max) + ); + + return false; + + } + + function onMouseUp() { + dom.unbind(window, 'mousemove', onMouseDrag); + dom.unbind(window, 'mouseup', onMouseUp); + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + this.updateDisplay(); + + this.__background.appendChild(this.__foreground); + this.domElement.appendChild(this.__background); + + }; + + NumberControllerSlider.superclass = NumberController; + + /** + * Injects default stylesheet for slider elements. + */ + NumberControllerSlider.useDefaultStyles = function() { + css.inject(styleSheet); + }; + + common.extend( + + NumberControllerSlider.prototype, + NumberController.prototype, + + { + + updateDisplay: function() { + var pct = (this.getValue() - this.__min)/(this.__max - this.__min); + this.__foreground.style.width = pct*100+'%'; + return NumberControllerSlider.superclass.prototype.updateDisplay.call(this); + } + + } + + + + ); + + function map(v, i1, i2, o1, o2) { + return o1 + (o2 - o1) * ((v - i1) / (i2 - i1)); + } + + return NumberControllerSlider; + + })(dat.controllers.NumberController, + dat.dom.dom, + dat.utils.css, + dat.utils.common, + ".slider {\n box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);\n height: 1em;\n border-radius: 1em;\n background-color: #eee;\n padding: 0 0.5em;\n overflow: hidden;\n}\n\n.slider-fg {\n padding: 1px 0 2px 0;\n background-color: #aaa;\n height: 1em;\n margin-left: -0.5em;\n padding-right: 0.5em;\n border-radius: 1em 0 0 1em;\n}\n\n.slider-fg:after {\n display: inline-block;\n border-radius: 1em;\n background-color: #fff;\n border: 1px solid #aaa;\n content: '';\n float: right;\n margin-right: -1em;\n margin-top: -1px;\n height: 0.9em;\n width: 0.9em;\n}"); + + + dat.controllers.FunctionController = (function (Controller, dom, common) { + + /** + * @class Provides a GUI interface to fire a specified method, a property of an object. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var FunctionController = function(object, property, text) { + + FunctionController.superclass.call(this, object, property); + + var _this = this; + + this.__button = document.createElement('div'); + this.__button.innerHTML = text === undefined ? 'Fire' : text; + dom.bind(this.__button, 'click', function(e) { + e.preventDefault(); + _this.fire(); + return false; + }); + + dom.addClass(this.__button, 'button'); + + this.domElement.appendChild(this.__button); + + + }; + + FunctionController.superclass = Controller; + + common.extend( + + FunctionController.prototype, + Controller.prototype, + { + + fire: function() { + if (this.__onChange) { + this.__onChange.call(this); + } + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + this.getValue().call(this.object); + } + } + + ); + + return FunctionController; + + })(dat.controllers.Controller, + dat.dom.dom, + dat.utils.common); + + + dat.controllers.BooleanController = (function (Controller, dom, common) { + + /** + * @class Provides a checkbox input to alter the boolean property of an object. + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var BooleanController = function(object, property) { + + BooleanController.superclass.call(this, object, property); + + var _this = this; + this.__prev = this.getValue(); + + this.__checkbox = document.createElement('input'); + this.__checkbox.setAttribute('type', 'checkbox'); + + + dom.bind(this.__checkbox, 'change', onChange, false); + + this.domElement.appendChild(this.__checkbox); + + // Match original value + this.updateDisplay(); + + function onChange() { + _this.setValue(!_this.__prev); + } + + }; + + BooleanController.superclass = Controller; + + common.extend( + + BooleanController.prototype, + Controller.prototype, + + { + + setValue: function(v) { + var toReturn = BooleanController.superclass.prototype.setValue.call(this, v); + if (this.__onFinishChange) { + this.__onFinishChange.call(this, this.getValue()); + } + this.__prev = this.getValue(); + return toReturn; + }, + + updateDisplay: function() { + + if (this.getValue() === true) { + this.__checkbox.setAttribute('checked', 'checked'); + this.__checkbox.checked = true; + } else { + this.__checkbox.checked = false; + } + + return BooleanController.superclass.prototype.updateDisplay.call(this); + + } + + + } + + ); + + return BooleanController; + + })(dat.controllers.Controller, + dat.dom.dom, + dat.utils.common); + + + dat.color.toString = (function (common) { + + return function(color) { + + if (color.a == 1 || common.isUndefined(color.a)) { + + var s = color.hex.toString(16); + while (s.length < 6) { + s = '0' + s; + } + + return '#' + s; + + } else { + + return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')'; + + } + + } + + })(dat.utils.common); + + + dat.color.interpret = (function (toString, common) { + + var result, toReturn; + + var interpret = function() { + + toReturn = false; + + var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0]; + + common.each(INTERPRETATIONS, function(family) { + + if (family.litmus(original)) { + + common.each(family.conversions, function(conversion, conversionName) { + + result = conversion.read(original); + + if (toReturn === false && result !== false) { + toReturn = result; + result.conversionName = conversionName; + result.conversion = conversion; + return common.BREAK; + + } + + }); + + return common.BREAK; + + } + + }); + + return toReturn; + + }; + + var INTERPRETATIONS = [ + + // Strings + { + + litmus: common.isString, + + conversions: { + + THREE_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt( + '0x' + + test[1].toString() + test[1].toString() + + test[2].toString() + test[2].toString() + + test[3].toString() + test[3].toString()) + }; + + }, + + write: toString + + }, + + SIX_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9]{6})$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt('0x' + test[1].toString()) + }; + + }, + + write: toString + + }, + + CSS_RGB: { + + read: function(original) { + + var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]) + }; + + }, + + write: toString + + }, + + CSS_RGBA: { + + read: function(original) { + + var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]), + a: parseFloat(test[4]) + }; + + }, + + write: toString + + } + + } + + }, + + // Numbers + { + + litmus: common.isNumber, + + conversions: { + + HEX: { + read: function(original) { + return { + space: 'HEX', + hex: original, + conversionName: 'HEX' + } + }, + + write: function(color) { + return color.hex; + } + } + + } + + }, + + // Arrays + { + + litmus: common.isArray, + + conversions: { + + RGB_ARRAY: { + read: function(original) { + if (original.length != 3) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b]; + } + + }, + + RGBA_ARRAY: { + read: function(original) { + if (original.length != 4) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2], + a: original[3] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b, color.a]; + } + + } + + } + + }, + + // Objects + { + + litmus: common.isObject, + + conversions: { + + RGBA_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b) && + common.isNumber(original.a)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b, + a: color.a + } + } + }, + + RGB_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b + } + } + }, + + HSVA_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v) && + common.isNumber(original.a)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v, + a: color.a + } + } + }, + + HSV_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v + } + } + + } + + } + + } + + + ]; + + return interpret; + + + })(dat.color.toString, + dat.utils.common); + + + dat.GUI = dat.gui.GUI = (function (css, saveDialogueContents, styleSheet, controllerFactory, Controller, BooleanController, FunctionController, NumberControllerBox, NumberControllerSlider, OptionController, ColorController, requestAnimationFrame, CenteredDiv, dom, common) { + + css.inject(styleSheet); + + /** Outer-most className for GUI's */ + var CSS_NAMESPACE = 'dg'; + + var HIDE_KEY_CODE = 72; + + /** The only value shared between the JS and SCSS. Use caution. */ + var CLOSE_BUTTON_HEIGHT = 20; + + var DEFAULT_DEFAULT_PRESET_NAME = 'Default'; + + var SUPPORTS_LOCAL_STORAGE = (function() { + try { + return 'localStorage' in window && window['localStorage'] !== null; + } catch (e) { + return false; + } + })(); + + var SAVE_DIALOGUE; + + /** Have we yet to create an autoPlace GUI? */ + var auto_place_virgin = true; + + /** Fixed position div that auto place GUI's go inside */ + var auto_place_container; + + /** Are we hiding the GUI's ? */ + var hide = false; + + /** GUI's which should be hidden */ + var hideable_guis = []; + + /** + * A lightweight controller library for JavaScript. It allows you to easily + * manipulate variables and fire functions on the fly. + * @class + * + * @member dat.gui + * + * @param {Object} [params] + * @param {String} [params.name] The name of this GUI. + * @param {Object} [params.load] JSON object representing the saved state of + * this GUI. + * @param {Boolean} [params.auto=true] + * @param {dat.gui.GUI} [params.parent] The GUI I'm nested in. + * @param {Boolean} [params.closed] If true, starts closed + */ + var GUI = function(params) { + + var _this = this; + + /** + * Outermost DOM Element + * @type DOMElement + */ + this.domElement = document.createElement('div'); + this.__ul = document.createElement('ul'); + this.domElement.appendChild(this.__ul); + + dom.addClass(this.domElement, CSS_NAMESPACE); + + /** + * Nested GUI's by name + * @ignore + */ + this.__folders = {}; + + this.__controllers = []; + + /** + * List of objects I'm remembering for save, only used in top level GUI + * @ignore + */ + this.__rememberedObjects = []; + + /** + * Maps the index of remembered objects to a map of controllers, only used + * in top level GUI. + * + * @private + * @ignore + * + * @example + * [ + * { + * propertyName: Controller, + * anotherPropertyName: Controller + * }, + * { + * propertyName: Controller + * } + * ] + */ + this.__rememberedObjectIndecesToControllers = []; + + this.__listening = []; + + params = params || {}; + + // Default parameters + params = common.defaults(params, { + autoPlace: true, + width: GUI.DEFAULT_WIDTH + }); + + params = common.defaults(params, { + resizable: params.autoPlace, + hideable: params.autoPlace + }); + + + if (!common.isUndefined(params.load)) { + + // Explicit preset + if (params.preset) params.load.preset = params.preset; + + } else { + + params.load = { preset: DEFAULT_DEFAULT_PRESET_NAME }; + + } + + if (common.isUndefined(params.parent) && params.hideable) { + hideable_guis.push(this); + } + + // Only root level GUI's are resizable. + params.resizable = common.isUndefined(params.parent) && params.resizable; + + + if (params.autoPlace && common.isUndefined(params.scrollable)) { + params.scrollable = true; + } + // params.scrollable = common.isUndefined(params.parent) && params.scrollable === true; + + // Not part of params because I don't want people passing this in via + // constructor. Should be a 'remembered' value. + var use_local_storage = + SUPPORTS_LOCAL_STORAGE && + localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true'; + + Object.defineProperties(this, + + /** @lends dat.gui.GUI.prototype */ + { + + /** + * The parent GUI + * @type dat.gui.GUI + */ + parent: { + get: function() { + return params.parent; + } + }, + + scrollable: { + get: function() { + return params.scrollable; + } + }, + + /** + * Handles GUI's element placement for you + * @type Boolean + */ + autoPlace: { + get: function() { + return params.autoPlace; + } + }, + + /** + * The identifier for a set of saved values + * @type String + */ + preset: { + + get: function() { + if (_this.parent) { + return _this.getRoot().preset; + } else { + return params.load.preset; + } + }, + + set: function(v) { + if (_this.parent) { + _this.getRoot().preset = v; + } else { + params.load.preset = v; + } + setPresetSelectIndex(this); + _this.revert(); + } + + }, + + /** + * The width of GUI element + * @type Number + */ + width: { + get: function() { + return params.width; + }, + set: function(v) { + params.width = v; + setWidth(_this, v); + } + }, + + /** + * The name of GUI. Used for folders. i.e + * a folder's name + * @type String + */ + name: { + get: function() { + return params.name; + }, + set: function(v) { + // TODO Check for collisions among sibling folders + params.name = v; + if (title_row_name) { + title_row_name.innerHTML = params.name; + } + } + }, + + /** + * Whether the GUI is collapsed or not + * @type Boolean + */ + closed: { + get: function() { + return params.closed; + }, + set: function(v) { + params.closed = v; + if (params.closed) { + dom.addClass(_this.__ul, GUI.CLASS_CLOSED); + } else { + dom.removeClass(_this.__ul, GUI.CLASS_CLOSED); + } + // For browsers that aren't going to respect the CSS transition, + // Lets just check our height against the window height right off + // the bat. + this.onResize(); + + if (_this.__closeButton) { + _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED; + } + } + }, + + /** + * Contains all presets + * @type Object + */ + load: { + get: function() { + return params.load; + } + }, + + /** + * Determines whether or not to use localStorage as the means for + * remembering + * @type Boolean + */ + useLocalStorage: { + + get: function() { + return use_local_storage; + }, + set: function(bool) { + if (SUPPORTS_LOCAL_STORAGE) { + use_local_storage = bool; + if (bool) { + dom.bind(window, 'unload', saveToLocalStorage); + } else { + dom.unbind(window, 'unload', saveToLocalStorage); + } + localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool); + } + } + + } + + }); + + // Are we a root level GUI? + if (common.isUndefined(params.parent)) { + + params.closed = false; + + dom.addClass(this.domElement, GUI.CLASS_MAIN); + dom.makeSelectable(this.domElement, false); + + // Are we supposed to be loading locally? + if (SUPPORTS_LOCAL_STORAGE) { + + if (use_local_storage) { + + _this.useLocalStorage = true; + + var saved_gui = localStorage.getItem(getLocalStorageHash(this, 'gui')); + + if (saved_gui) { + params.load = JSON.parse(saved_gui); + } + + } + + } + + this.__closeButton = document.createElement('div'); + this.__closeButton.innerHTML = GUI.TEXT_CLOSED; + dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON); + this.domElement.appendChild(this.__closeButton); + + dom.bind(this.__closeButton, 'click', function() { + + _this.closed = !_this.closed; + + + }); + + + // Oh, you're a nested GUI! + } else { + + if (params.closed === undefined) { + params.closed = true; + } + + var title_row_name = document.createTextNode(params.name); + dom.addClass(title_row_name, 'controller-name'); + + var title_row = addRow(_this, title_row_name); + + var on_click_title = function(e) { + e.preventDefault(); + _this.closed = !_this.closed; + return false; + }; + + dom.addClass(this.__ul, GUI.CLASS_CLOSED); + + dom.addClass(title_row, 'title'); + dom.bind(title_row, 'click', on_click_title); + + if (!params.closed) { + this.closed = false; + } + + } + + if (params.autoPlace) { + + if (common.isUndefined(params.parent)) { + + if (auto_place_virgin) { + auto_place_container = document.createElement('div'); + dom.addClass(auto_place_container, CSS_NAMESPACE); + dom.addClass(auto_place_container, GUI.CLASS_AUTO_PLACE_CONTAINER); + document.body.appendChild(auto_place_container); + auto_place_virgin = false; + } + + // Put it in the dom for you. + auto_place_container.appendChild(this.domElement); + + // Apply the auto styles + dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE); + + } + + + // Make it not elastic. + if (!this.parent) setWidth(_this, params.width); + + } + + dom.bind(window, 'resize', function() { _this.onResize() }); + dom.bind(this.__ul, 'webkitTransitionEnd', function() { _this.onResize(); }); + dom.bind(this.__ul, 'transitionend', function() { _this.onResize() }); + dom.bind(this.__ul, 'oTransitionEnd', function() { _this.onResize() }); + this.onResize(); + + + if (params.resizable) { + addResizeHandle(this); + } + + function saveToLocalStorage() { + localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject())); + } + + var root = _this.getRoot(); + function resetWidth() { + var root = _this.getRoot(); + root.width += 1; + common.defer(function() { + root.width -= 1; + }); + } + + if (!params.parent) { + resetWidth(); + } + + }; + + GUI.toggleHide = function() { + + hide = !hide; + common.each(hideable_guis, function(gui) { + gui.domElement.style.zIndex = hide ? -999 : 999; + gui.domElement.style.opacity = hide ? 0 : 1; + }); + }; + + GUI.CLASS_AUTO_PLACE = 'a'; + GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac'; + GUI.CLASS_MAIN = 'main'; + GUI.CLASS_CONTROLLER_ROW = 'cr'; + GUI.CLASS_TOO_TALL = 'taller-than-window'; + GUI.CLASS_CLOSED = 'closed'; + GUI.CLASS_CLOSE_BUTTON = 'close-button'; + GUI.CLASS_DRAG = 'drag'; + + GUI.DEFAULT_WIDTH = 245; + GUI.TEXT_CLOSED = 'Close Controls'; + GUI.TEXT_OPEN = 'Open Controls'; + + dom.bind(window, 'keydown', function(e) { + + if (document.activeElement.type !== 'text' && + (e.which === HIDE_KEY_CODE || e.keyCode == HIDE_KEY_CODE)) { + GUI.toggleHide(); + } + + }, false); + + common.extend( + + GUI.prototype, + + /** @lends dat.gui.GUI */ + { + + /** + * @param object + * @param property + * @returns {dat.controllers.Controller} The new controller that was added. + * @instance + */ + add: function(object, property) { + + return add( + this, + object, + property, + { + factoryArgs: Array.prototype.slice.call(arguments, 2) + } + ); + + }, + + /** + * @param object + * @param property + * @returns {dat.controllers.ColorController} The new controller that was added. + * @instance + */ + addColor: function(object, property) { + + return add( + this, + object, + property, + { + color: true + } + ); + + }, + + /** + * @param controller + * @instance + */ + remove: function(controller) { + + // TODO listening? + this.__ul.removeChild(controller.__li); + this.__controllers.slice(this.__controllers.indexOf(controller), 1); + var _this = this; + common.defer(function() { + _this.onResize(); + }); + + }, + + destroy: function() { + + if (this.autoPlace) { + auto_place_container.removeChild(this.domElement); + } + + }, + + /** + * @param name + * @returns {dat.gui.GUI} The new folder. + * @throws {Error} if this GUI already has a folder by the specified + * name + * @instance + */ + addFolder: function(name) { + + // We have to prevent collisions on names in order to have a key + // by which to remember saved values + if (this.__folders[name] !== undefined) { + throw new Error('You already have a folder in this GUI by the' + + ' name "' + name + '"'); + } + + var new_gui_params = { name: name, parent: this }; + + // We need to pass down the autoPlace trait so that we can + // attach event listeners to open/close folder actions to + // ensure that a scrollbar appears if the window is too short. + new_gui_params.autoPlace = this.autoPlace; + + // Do we have saved appearance data for this folder? + + if (this.load && // Anything loaded? + this.load.folders && // Was my parent a dead-end? + this.load.folders[name]) { // Did daddy remember me? + + // Start me closed if I was closed + new_gui_params.closed = this.load.folders[name].closed; + + // Pass down the loaded data + new_gui_params.load = this.load.folders[name]; + + } + + var gui = new GUI(new_gui_params); + this.__folders[name] = gui; + + var li = addRow(this, gui.domElement); + dom.addClass(li, 'folder'); + return gui; + + }, + + open: function() { + this.closed = false; + }, + + close: function() { + this.closed = true; + }, + + onResize: function() { + + var root = this.getRoot(); + + if (root.scrollable) { + + var top = dom.getOffset(root.__ul).top; + var h = 0; + + common.each(root.__ul.childNodes, function(node) { + if (! (root.autoPlace && node === root.__save_row)) + h += dom.getHeight(node); + }); + + if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) { + dom.addClass(root.domElement, GUI.CLASS_TOO_TALL); + root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px'; + } else { + dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL); + root.__ul.style.height = 'auto'; + } + + } + + if (root.__resize_handle) { + common.defer(function() { + root.__resize_handle.style.height = root.__ul.offsetHeight + 'px'; + }); + } + + if (root.__closeButton) { + root.__closeButton.style.width = root.width + 'px'; + } + + }, + + /** + * Mark objects for saving. The order of these objects cannot change as + * the GUI grows. When remembering new objects, append them to the end + * of the list. + * + * @param {Object...} objects + * @throws {Error} if not called on a top level GUI. + * @instance + */ + remember: function() { + + if (common.isUndefined(SAVE_DIALOGUE)) { + SAVE_DIALOGUE = new CenteredDiv(); + SAVE_DIALOGUE.domElement.innerHTML = saveDialogueContents; + } + + if (this.parent) { + throw new Error("You can only call remember on a top level GUI."); + } + + var _this = this; + + common.each(Array.prototype.slice.call(arguments), function(object) { + if (_this.__rememberedObjects.length == 0) { + addSaveMenu(_this); + } + if (_this.__rememberedObjects.indexOf(object) == -1) { + _this.__rememberedObjects.push(object); + } + }); + + if (this.autoPlace) { + // Set save row width + setWidth(this, this.width); + } + + }, + + /** + * @returns {dat.gui.GUI} the topmost parent GUI of a nested GUI. + * @instance + */ + getRoot: function() { + var gui = this; + while (gui.parent) { + gui = gui.parent; + } + return gui; + }, + + /** + * @returns {Object} a JSON object representing the current state of + * this GUI as well as its remembered properties. + * @instance + */ + getSaveObject: function() { + + var toReturn = this.load; + + toReturn.closed = this.closed; + + // Am I remembering any values? + if (this.__rememberedObjects.length > 0) { + + toReturn.preset = this.preset; + + if (!toReturn.remembered) { + toReturn.remembered = {}; + } + + toReturn.remembered[this.preset] = getCurrentPreset(this); + + } + + toReturn.folders = {}; + common.each(this.__folders, function(element, key) { + toReturn.folders[key] = element.getSaveObject(); + }); + + return toReturn; + + }, + + save: function() { + + if (!this.load.remembered) { + this.load.remembered = {}; + } + + this.load.remembered[this.preset] = getCurrentPreset(this); + markPresetModified(this, false); + + }, + + saveAs: function(presetName) { + + if (!this.load.remembered) { + + // Retain default values upon first save + this.load.remembered = {}; + this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true); + + } + + this.load.remembered[presetName] = getCurrentPreset(this); + this.preset = presetName; + addPresetOption(this, presetName, true); + + }, + + revert: function(gui) { + + common.each(this.__controllers, function(controller) { + // Make revert work on Default. + if (!this.getRoot().load.remembered) { + controller.setValue(controller.initialValue); + } else { + recallSavedValue(gui || this.getRoot(), controller); + } + }, this); + + common.each(this.__folders, function(folder) { + folder.revert(folder); + }); + + if (!gui) { + markPresetModified(this.getRoot(), false); + } + + + }, + + listen: function(controller) { + + var init = this.__listening.length == 0; + this.__listening.push(controller); + if (init) updateDisplays(this.__listening); + + } + + } + + ); + + function add(gui, object, property, params) { + + if (object[property] === undefined) { + throw new Error("Object " + object + " has no property \"" + property + "\""); + } + + var controller; + + if (params.color) { + + controller = new ColorController(object, property); + + } else { + + var factoryArgs = [object,property].concat(params.factoryArgs); + controller = controllerFactory.apply(gui, factoryArgs); + + } + + if (params.before instanceof Controller) { + params.before = params.before.__li; + } + + recallSavedValue(gui, controller); + + dom.addClass(controller.domElement, 'c'); + + var name = document.createElement('span'); + dom.addClass(name, 'property-name'); + name.innerHTML = controller.property; + + var container = document.createElement('div'); + container.appendChild(name); + container.appendChild(controller.domElement); + + var li = addRow(gui, container, params.before); + + dom.addClass(li, GUI.CLASS_CONTROLLER_ROW); + dom.addClass(li, typeof controller.getValue()); + + augmentController(gui, li, controller); + + gui.__controllers.push(controller); + + return controller; + + } + + /** + * Add a row to the end of the GUI or before another row. + * + * @param gui + * @param [dom] If specified, inserts the dom content in the new row + * @param [liBefore] If specified, places the new row before another row + */ + function addRow(gui, dom, liBefore) { + var li = document.createElement('li'); + if (dom) li.appendChild(dom); + if (liBefore) { + gui.__ul.insertBefore(li, params.before); + } else { + gui.__ul.appendChild(li); + } + gui.onResize(); + return li; + } + + function augmentController(gui, li, controller) { + + controller.__li = li; + controller.__gui = gui; + + common.extend(controller, { + + options: function(options) { + + if (arguments.length > 1) { + controller.remove(); + + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [common.toArray(arguments)] + } + ); + + } + + if (common.isArray(options) || common.isObject(options)) { + controller.remove(); + + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [options] + } + ); + + } + + }, + + name: function(v) { + controller.__li.firstElementChild.firstElementChild.innerHTML = v; + return controller; + }, + + listen: function() { + controller.__gui.listen(controller); + return controller; + }, + + remove: function() { + controller.__gui.remove(controller); + return controller; + } + + }); + + // All sliders should be accompanied by a box. + if (controller instanceof NumberControllerSlider) { + + var box = new NumberControllerBox(controller.object, controller.property, + { min: controller.__min, max: controller.__max, step: controller.__step }); + + common.each(['updateDisplay', 'onChange', 'onFinishChange'], function(method) { + var pc = controller[method]; + var pb = box[method]; + controller[method] = box[method] = function() { + var args = Array.prototype.slice.call(arguments); + pc.apply(controller, args); + return pb.apply(box, args); + } + }); + + dom.addClass(li, 'has-slider'); + controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild); + + } + else if (controller instanceof NumberControllerBox) { + + var r = function(returned) { + + // Have we defined both boundaries? + if (common.isNumber(controller.__min) && common.isNumber(controller.__max)) { + + // Well, then lets just replace this with a slider. + controller.remove(); + return add( + gui, + controller.object, + controller.property, + { + before: controller.__li.nextElementSibling, + factoryArgs: [controller.__min, controller.__max, controller.__step] + }); + + } + + return returned; + + }; + + controller.min = common.compose(r, controller.min); + controller.max = common.compose(r, controller.max); + + } + else if (controller instanceof BooleanController) { + + dom.bind(li, 'click', function() { + dom.fakeEvent(controller.__checkbox, 'click'); + }); + + dom.bind(controller.__checkbox, 'click', function(e) { + e.stopPropagation(); // Prevents double-toggle + }) + + } + else if (controller instanceof FunctionController) { + + dom.bind(li, 'click', function() { + dom.fakeEvent(controller.__button, 'click'); + }); + + dom.bind(li, 'mouseover', function() { + dom.addClass(controller.__button, 'hover'); + }); + + dom.bind(li, 'mouseout', function() { + dom.removeClass(controller.__button, 'hover'); + }); + + } + else if (controller instanceof ColorController) { + + dom.addClass(li, 'color'); + controller.updateDisplay = common.compose(function(r) { + li.style.borderLeftColor = controller.__color.toString(); + return r; + }, controller.updateDisplay); + + controller.updateDisplay(); + + } + + controller.setValue = common.compose(function(r) { + if (gui.getRoot().__preset_select && controller.isModified()) { + markPresetModified(gui.getRoot(), true); + } + return r; + }, controller.setValue); + + } + + function recallSavedValue(gui, controller) { + + // Find the topmost GUI, that's where remembered objects live. + var root = gui.getRoot(); + + // Does the object we're controlling match anything we've been told to + // remember? + var matched_index = root.__rememberedObjects.indexOf(controller.object); + + // Why yes, it does! + if (matched_index != -1) { + + // Let me fetch a map of controllers for thcommon.isObject. + var controller_map = + root.__rememberedObjectIndecesToControllers[matched_index]; + + // Ohp, I believe this is the first controller we've created for this + // object. Lets make the map fresh. + if (controller_map === undefined) { + controller_map = {}; + root.__rememberedObjectIndecesToControllers[matched_index] = + controller_map; + } + + // Keep track of this controller + controller_map[controller.property] = controller; + + // Okay, now have we saved any values for this controller? + if (root.load && root.load.remembered) { + + var preset_map = root.load.remembered; + + // Which preset are we trying to load? + var preset; + + if (preset_map[gui.preset]) { + + preset = preset_map[gui.preset]; + + } else if (preset_map[DEFAULT_DEFAULT_PRESET_NAME]) { + + // Uhh, you can have the default instead? + preset = preset_map[DEFAULT_DEFAULT_PRESET_NAME]; + + } else { + + // Nada. + + return; + + } + + + // Did the loaded object remember thcommon.isObject? + if (preset[matched_index] && + + // Did we remember this particular property? + preset[matched_index][controller.property] !== undefined) { + + // We did remember something for this guy ... + var value = preset[matched_index][controller.property]; + + // And that's what it is. + controller.initialValue = value; + controller.setValue(value); + + } + + } + + } + + } + + function getLocalStorageHash(gui, key) { + // TODO how does this deal with multiple GUI's? + return document.location.href + '.' + key; + + } + + function addSaveMenu(gui) { + + var div = gui.__save_row = document.createElement('li'); + + dom.addClass(gui.domElement, 'has-save'); + + gui.__ul.insertBefore(div, gui.__ul.firstChild); + + dom.addClass(div, 'save-row'); + + var gears = document.createElement('span'); + gears.innerHTML = ' '; + dom.addClass(gears, 'button gears'); + + // TODO replace with FunctionController + var button = document.createElement('span'); + button.innerHTML = 'Save'; + dom.addClass(button, 'button'); + dom.addClass(button, 'save'); + + var button2 = document.createElement('span'); + button2.innerHTML = 'New'; + dom.addClass(button2, 'button'); + dom.addClass(button2, 'save-as'); + + var button3 = document.createElement('span'); + button3.innerHTML = 'Revert'; + dom.addClass(button3, 'button'); + dom.addClass(button3, 'revert'); + + var select = gui.__preset_select = document.createElement('select'); + + if (gui.load && gui.load.remembered) { + + common.each(gui.load.remembered, function(value, key) { + addPresetOption(gui, key, key == gui.preset); + }); + + } else { + addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false); + } + + dom.bind(select, 'change', function() { + + + for (var index = 0; index < gui.__preset_select.length; index++) { + gui.__preset_select[index].innerHTML = gui.__preset_select[index].value; + } + + gui.preset = this.value; + + }); + + div.appendChild(select); + div.appendChild(gears); + div.appendChild(button); + div.appendChild(button2); + div.appendChild(button3); + + if (SUPPORTS_LOCAL_STORAGE) { + + var saveLocally = document.getElementById('dg-save-locally'); + var explain = document.getElementById('dg-local-explain'); + + saveLocally.style.display = 'block'; + + var localStorageCheckBox = document.getElementById('dg-local-storage'); + + if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') { + localStorageCheckBox.setAttribute('checked', 'checked'); + } + + function showHideExplain() { + explain.style.display = gui.useLocalStorage ? 'block' : 'none'; + } + + showHideExplain(); + + // TODO: Use a boolean controller, fool! + dom.bind(localStorageCheckBox, 'change', function() { + gui.useLocalStorage = !gui.useLocalStorage; + showHideExplain(); + }); + + } + + var newConstructorTextArea = document.getElementById('dg-new-constructor'); + + dom.bind(newConstructorTextArea, 'keydown', function(e) { + if (e.metaKey && (e.which === 67 || e.keyCode == 67)) { + SAVE_DIALOGUE.hide(); + } + }); + + dom.bind(gears, 'click', function() { + newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2); + SAVE_DIALOGUE.show(); + newConstructorTextArea.focus(); + newConstructorTextArea.select(); + }); + + dom.bind(button, 'click', function() { + gui.save(); + }); + + dom.bind(button2, 'click', function() { + var presetName = prompt('Enter a new preset name.'); + if (presetName) gui.saveAs(presetName); + }); + + dom.bind(button3, 'click', function() { + gui.revert(); + }); + + // div.appendChild(button2); + + } + + function addResizeHandle(gui) { + + gui.__resize_handle = document.createElement('div'); + + common.extend(gui.__resize_handle.style, { + + width: '6px', + marginLeft: '-3px', + height: '200px', + cursor: 'ew-resize', + position: 'absolute' + // border: '1px solid blue' + + }); + + var pmouseX; + + dom.bind(gui.__resize_handle, 'mousedown', dragStart); + dom.bind(gui.__closeButton, 'mousedown', dragStart); + + gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild); + + function dragStart(e) { + + e.preventDefault(); + + pmouseX = e.clientX; + + dom.addClass(gui.__closeButton, GUI.CLASS_DRAG); + dom.bind(window, 'mousemove', drag); + dom.bind(window, 'mouseup', dragStop); + + return false; + + } + + function drag(e) { + + e.preventDefault(); + + gui.width += pmouseX - e.clientX; + gui.onResize(); + pmouseX = e.clientX; + + return false; + + } + + function dragStop() { + + dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG); + dom.unbind(window, 'mousemove', drag); + dom.unbind(window, 'mouseup', dragStop); + + } + + } + + function setWidth(gui, w) { + gui.domElement.style.width = w + 'px'; + // Auto placed save-rows are position fixed, so we have to + // set the width manually if we want it to bleed to the edge + if (gui.__save_row && gui.autoPlace) { + gui.__save_row.style.width = w + 'px'; + }if (gui.__closeButton) { + gui.__closeButton.style.width = w + 'px'; + } + } + + function getCurrentPreset(gui, useInitialValues) { + + var toReturn = {}; + + // For each object I'm remembering + common.each(gui.__rememberedObjects, function(val, index) { + + var saved_values = {}; + + // The controllers I've made for thcommon.isObject by property + var controller_map = + gui.__rememberedObjectIndecesToControllers[index]; + + // Remember each value for each property + common.each(controller_map, function(controller, property) { + saved_values[property] = useInitialValues ? controller.initialValue : controller.getValue(); + }); + + // Save the values for thcommon.isObject + toReturn[index] = saved_values; + + }); + + return toReturn; + + } + + function addPresetOption(gui, name, setSelected) { + var opt = document.createElement('option'); + opt.innerHTML = name; + opt.value = name; + gui.__preset_select.appendChild(opt); + if (setSelected) { + gui.__preset_select.selectedIndex = gui.__preset_select.length - 1; + } + } + + function setPresetSelectIndex(gui) { + for (var index = 0; index < gui.__preset_select.length; index++) { + if (gui.__preset_select[index].value == gui.preset) { + gui.__preset_select.selectedIndex = index; + } + } + } + + function markPresetModified(gui, modified) { + var opt = gui.__preset_select[gui.__preset_select.selectedIndex]; + // console.log('mark', modified, opt); + if (modified) { + opt.innerHTML = opt.value + "*"; + } else { + opt.innerHTML = opt.value; + } + } + + function updateDisplays(controllerArray) { + + + if (controllerArray.length != 0) { + + requestAnimationFrame(function() { + updateDisplays(controllerArray); + }); + + } + + common.each(controllerArray, function(c) { + c.updateDisplay(); + }); + + } + + return GUI; + + })(dat.utils.css, + "
\n\n Here's the new load parameter for your GUI's constructor:\n\n \n\n
\n\n Automatically save\n values to localStorage on exit.\n\n
The values saved to localStorage will\n override those passed to dat.GUI's constructor. This makes it\n easier to work incrementally, but localStorage is fragile,\n and your friends may not see the same values you do.\n \n
\n \n
\n\n
", + ".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear;border:0;position:absolute;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-x:hidden}.dg.a.has-save ul{margin-top:27px}.dg.a.has-save ul.closed{margin-top:0}.dg.a .save-row{position:fixed;top:0;z-index:1002}.dg li{-webkit-transition:height 0.1s ease-out;-o-transition:height 0.1s ease-out;-moz-transition:height 0.1s ease-out;transition:height 0.1s ease-out}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;overflow:hidden;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li > *{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:9px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2fa1d6}.dg .cr.number input[type=text]{color:#2fa1d6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2fa1d6}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\n", + dat.controllers.factory = (function (OptionController, NumberControllerBox, NumberControllerSlider, StringController, FunctionController, BooleanController, common) { + + return function(object, property) { + + var initialValue = object[property]; + + // Providing options? + if (common.isArray(arguments[2]) || common.isObject(arguments[2])) { + return new OptionController(object, property, arguments[2]); + } + + // Providing a map? + + if (common.isNumber(initialValue)) { + + if (common.isNumber(arguments[2]) && common.isNumber(arguments[3])) { + + // Has min and max. + return new NumberControllerSlider(object, property, arguments[2], arguments[3]); + + } else { + + return new NumberControllerBox(object, property, { min: arguments[2], max: arguments[3] }); + + } + + } + + if (common.isString(initialValue)) { + return new StringController(object, property); + } + + if (common.isFunction(initialValue)) { + return new FunctionController(object, property, ''); + } + + if (common.isBoolean(initialValue)) { + return new BooleanController(object, property); + } + + } + + })(dat.controllers.OptionController, + dat.controllers.NumberControllerBox, + dat.controllers.NumberControllerSlider, + dat.controllers.StringController = (function (Controller, dom, common) { + + /** + * @class Provides a text input to alter the string property of an object. + * + * @extends dat.controllers.Controller + * + * @param {Object} object The object to be manipulated + * @param {string} property The name of the property to be manipulated + * + * @member dat.controllers + */ + var StringController = function(object, property) { + + StringController.superclass.call(this, object, property); + + var _this = this; + + this.__input = document.createElement('input'); + this.__input.setAttribute('type', 'text'); + + dom.bind(this.__input, 'keyup', onChange); + dom.bind(this.__input, 'change', onChange); + dom.bind(this.__input, 'blur', onBlur); + dom.bind(this.__input, 'keydown', function(e) { + if (e.keyCode === 13) { + this.blur(); + } + }); + + + function onChange() { + _this.setValue(_this.__input.value); + } + + function onBlur() { + if (_this.__onFinishChange) { + _this.__onFinishChange.call(_this, _this.getValue()); + } + } + + this.updateDisplay(); + + this.domElement.appendChild(this.__input); + + }; + + StringController.superclass = Controller; + + common.extend( + + StringController.prototype, + Controller.prototype, + + { + + updateDisplay: function() { + // Stops the caret from moving on account of: + // keyup -> setValue -> updateDisplay + if (!dom.isActive(this.__input)) { + this.__input.value = this.getValue(); + } + return StringController.superclass.prototype.updateDisplay.call(this); + } + + } + + ); + + return StringController; + + })(dat.controllers.Controller, + dat.dom.dom, + dat.utils.common), + dat.controllers.FunctionController, + dat.controllers.BooleanController, + dat.utils.common), + dat.controllers.Controller, + dat.controllers.BooleanController, + dat.controllers.FunctionController, + dat.controllers.NumberControllerBox, + dat.controllers.NumberControllerSlider, + dat.controllers.OptionController, + dat.controllers.ColorController = (function (Controller, dom, Color, interpret, common) { + + var ColorController = function(object, property) { + + ColorController.superclass.call(this, object, property); + + this.__color = new Color(this.getValue()); + this.__temp = new Color(0); + + var _this = this; + + this.domElement = document.createElement('div'); + + dom.makeSelectable(this.domElement, false); + + this.__selector = document.createElement('div'); + this.__selector.className = 'selector'; + + this.__saturation_field = document.createElement('div'); + this.__saturation_field.className = 'saturation-field'; + + this.__field_knob = document.createElement('div'); + this.__field_knob.className = 'field-knob'; + this.__field_knob_border = '2px solid '; + + this.__hue_knob = document.createElement('div'); + this.__hue_knob.className = 'hue-knob'; + + this.__hue_field = document.createElement('div'); + this.__hue_field.className = 'hue-field'; + + this.__input = document.createElement('input'); + this.__input.type = 'text'; + this.__input_textShadow = '0 1px 1px '; + + dom.bind(this.__input, 'keydown', function(e) { + if (e.keyCode === 13) { // on enter + onBlur.call(this); + } + }); + + dom.bind(this.__input, 'blur', onBlur); + + dom.bind(this.__selector, 'mousedown', function(e) { + + dom + .addClass(this, 'drag') + .bind(window, 'mouseup', function(e) { + dom.removeClass(_this.__selector, 'drag'); + }); + + }); + + var value_field = document.createElement('div'); + + common.extend(this.__selector.style, { + width: '122px', + height: '102px', + padding: '3px', + backgroundColor: '#222', + boxShadow: '0px 1px 3px rgba(0,0,0,0.3)' + }); + + common.extend(this.__field_knob.style, { + position: 'absolute', + width: '12px', + height: '12px', + border: this.__field_knob_border + (this.__color.v < .5 ? '#fff' : '#000'), + boxShadow: '0px 1px 3px rgba(0,0,0,0.5)', + borderRadius: '12px', + zIndex: 1 + }); + + common.extend(this.__hue_knob.style, { + position: 'absolute', + width: '15px', + height: '2px', + borderRight: '4px solid #fff', + zIndex: 1 + }); + + common.extend(this.__saturation_field.style, { + width: '100px', + height: '100px', + border: '1px solid #555', + marginRight: '3px', + display: 'inline-block', + cursor: 'pointer' + }); + + common.extend(value_field.style, { + width: '100%', + height: '100%', + background: 'none' + }); + + linearGradient(value_field, 'top', 'rgba(0,0,0,0)', '#000'); + + common.extend(this.__hue_field.style, { + width: '15px', + height: '100px', + display: 'inline-block', + border: '1px solid #555', + cursor: 'ns-resize' + }); + + hueGradient(this.__hue_field); + + common.extend(this.__input.style, { + outline: 'none', + // width: '120px', + textAlign: 'center', + // padding: '4px', + // marginBottom: '6px', + color: '#fff', + border: 0, + fontWeight: 'bold', + textShadow: this.__input_textShadow + 'rgba(0,0,0,0.7)' + }); + + dom.bind(this.__saturation_field, 'mousedown', fieldDown); + dom.bind(this.__field_knob, 'mousedown', fieldDown); + + dom.bind(this.__hue_field, 'mousedown', function(e) { + setH(e); + dom.bind(window, 'mousemove', setH); + dom.bind(window, 'mouseup', unbindH); + }); + + function fieldDown(e) { + setSV(e); + // document.body.style.cursor = 'none'; + dom.bind(window, 'mousemove', setSV); + dom.bind(window, 'mouseup', unbindSV); + } + + function unbindSV() { + dom.unbind(window, 'mousemove', setSV); + dom.unbind(window, 'mouseup', unbindSV); + // document.body.style.cursor = 'default'; + } + + function onBlur() { + var i = interpret(this.value); + if (i !== false) { + _this.__color.__state = i; + _this.setValue(_this.__color.toOriginal()); + } else { + this.value = _this.__color.toString(); + } + } + + function unbindH() { + dom.unbind(window, 'mousemove', setH); + dom.unbind(window, 'mouseup', unbindH); + } + + this.__saturation_field.appendChild(value_field); + this.__selector.appendChild(this.__field_knob); + this.__selector.appendChild(this.__saturation_field); + this.__selector.appendChild(this.__hue_field); + this.__hue_field.appendChild(this.__hue_knob); + + this.domElement.appendChild(this.__input); + this.domElement.appendChild(this.__selector); + + this.updateDisplay(); + + function setSV(e) { + + e.preventDefault(); + + var w = dom.getWidth(_this.__saturation_field); + var o = dom.getOffset(_this.__saturation_field); + var s = (e.clientX - o.left + document.body.scrollLeft) / w; + var v = 1 - (e.clientY - o.top + document.body.scrollTop) / w; + + if (v > 1) v = 1; + else if (v < 0) v = 0; + + if (s > 1) s = 1; + else if (s < 0) s = 0; + + _this.__color.v = v; + _this.__color.s = s; + + _this.setValue(_this.__color.toOriginal()); + + + return false; + + } + + function setH(e) { + + e.preventDefault(); + + var s = dom.getHeight(_this.__hue_field); + var o = dom.getOffset(_this.__hue_field); + var h = 1 - (e.clientY - o.top + document.body.scrollTop) / s; + + if (h > 1) h = 1; + else if (h < 0) h = 0; + + _this.__color.h = h * 360; + + _this.setValue(_this.__color.toOriginal()); + + return false; + + } + + }; + + ColorController.superclass = Controller; + + common.extend( + + ColorController.prototype, + Controller.prototype, + + { + + updateDisplay: function() { + + var i = interpret(this.getValue()); + + if (i !== false) { + + var mismatch = false; + + // Check for mismatch on the interpreted value. + + common.each(Color.COMPONENTS, function(component) { + if (!common.isUndefined(i[component]) && + !common.isUndefined(this.__color.__state[component]) && + i[component] !== this.__color.__state[component]) { + mismatch = true; + return {}; // break + } + }, this); + + // If nothing diverges, we keep our previous values + // for statefulness, otherwise we recalculate fresh + if (mismatch) { + common.extend(this.__color.__state, i); + } + + } + + common.extend(this.__temp.__state, this.__color.__state); + + this.__temp.a = 1; + + var flip = (this.__color.v < .5 || this.__color.s > .5) ? 255 : 0; + var _flip = 255 - flip; + + common.extend(this.__field_knob.style, { + marginLeft: 100 * this.__color.s - 7 + 'px', + marginTop: 100 * (1 - this.__color.v) - 7 + 'px', + backgroundColor: this.__temp.toString(), + border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip +')' + }); + + this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px' + + this.__temp.s = 1; + this.__temp.v = 1; + + linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toString()); + + common.extend(this.__input.style, { + backgroundColor: this.__input.value = this.__color.toString(), + color: 'rgb(' + flip + ',' + flip + ',' + flip +')', + textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip +',.7)' + }); + + } + + } + + ); + + var vendors = ['-moz-','-o-','-webkit-','-ms-','']; + + function linearGradient(elem, x, a, b) { + elem.style.background = ''; + common.each(vendors, function(vendor) { + elem.style.cssText += 'background: ' + vendor + 'linear-gradient('+x+', '+a+' 0%, ' + b + ' 100%); '; + }); + } + + function hueGradient(elem) { + elem.style.background = ''; + elem.style.cssText += 'background: -moz-linear-gradient(top, #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);' + elem.style.cssText += 'background: -webkit-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: -o-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: -ms-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + elem.style.cssText += 'background: linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);' + } + + + return ColorController; + + })(dat.controllers.Controller, + dat.dom.dom, + dat.color.Color = (function (interpret, math, toString, common) { + + var Color = function() { + + this.__state = interpret.apply(this, arguments); + + if (this.__state === false) { + throw 'Failed to interpret color arguments'; + } + + this.__state.a = this.__state.a || 1; + + + }; + + Color.COMPONENTS = ['r','g','b','h','s','v','hex','a']; + + common.extend(Color.prototype, { + + toString: function() { + return toString(this); + }, + + toOriginal: function() { + return this.__state.conversion.write(this); + } + + }); + + defineRGBComponent(Color.prototype, 'r', 2); + defineRGBComponent(Color.prototype, 'g', 1); + defineRGBComponent(Color.prototype, 'b', 0); + + defineHSVComponent(Color.prototype, 'h'); + defineHSVComponent(Color.prototype, 's'); + defineHSVComponent(Color.prototype, 'v'); + + Object.defineProperty(Color.prototype, 'a', { + + get: function() { + return this.__state.a; + }, + + set: function(v) { + this.__state.a = v; + } + + }); + + Object.defineProperty(Color.prototype, 'hex', { + + get: function() { + + if (!this.__state.space !== 'HEX') { + this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b); + } + + return this.__state.hex; + + }, + + set: function(v) { + + this.__state.space = 'HEX'; + this.__state.hex = v; + + } + + }); + + function defineRGBComponent(target, component, componentHexIndex) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'RGB') { + return this.__state[component]; + } + + recalculateRGB(this, component, componentHexIndex); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'RGB') { + recalculateRGB(this, component, componentHexIndex); + this.__state.space = 'RGB'; + } + + this.__state[component] = v; + + } + + }); + + } + + function defineHSVComponent(target, component) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'HSV') + return this.__state[component]; + + recalculateHSV(this); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'HSV') { + recalculateHSV(this); + this.__state.space = 'HSV'; + } + + this.__state[component] = v; + + } + + }); + + } + + function recalculateRGB(color, component, componentHexIndex) { + + if (color.__state.space === 'HEX') { + + color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex); + + } else if (color.__state.space === 'HSV') { + + common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v)); + + } else { + + throw 'Corrupted color state'; + + } + + } + + function recalculateHSV(color) { + + var result = math.rgb_to_hsv(color.r, color.g, color.b); + + common.extend(color.__state, + { + s: result.s, + v: result.v + } + ); + + if (!common.isNaN(result.h)) { + color.__state.h = result.h; + } else if (common.isUndefined(color.__state.h)) { + color.__state.h = 0; + } + + } + + return Color; + + })(dat.color.interpret, + dat.color.math = (function () { + + var tmpComponent; + + return { + + hsv_to_rgb: function(h, s, v) { + + var hi = Math.floor(h / 60) % 6; + + var f = h / 60 - Math.floor(h / 60); + var p = v * (1.0 - s); + var q = v * (1.0 - (f * s)); + var t = v * (1.0 - ((1.0 - f) * s)); + var c = [ + [v, t, p], + [q, v, p], + [p, v, t], + [p, q, v], + [t, p, v], + [v, p, q] + ][hi]; + + return { + r: c[0] * 255, + g: c[1] * 255, + b: c[2] * 255 + }; + + }, + + rgb_to_hsv: function(r, g, b) { + + var min = Math.min(r, g, b), + max = Math.max(r, g, b), + delta = max - min, + h, s; + + if (max != 0) { + s = delta / max; + } else { + return { + h: NaN, + s: 0, + v: 0 + }; + } + + if (r == max) { + h = (g - b) / delta; + } else if (g == max) { + h = 2 + (b - r) / delta; + } else { + h = 4 + (r - g) / delta; + } + h /= 6; + if (h < 0) { + h += 1; + } + + return { + h: h * 360, + s: s, + v: max / 255 + }; + }, + + rgb_to_hex: function(r, g, b) { + var hex = this.hex_with_component(0, 2, r); + hex = this.hex_with_component(hex, 1, g); + hex = this.hex_with_component(hex, 0, b); + return hex; + }, + + component_from_hex: function(hex, componentIndex) { + return (hex >> (componentIndex * 8)) & 0xFF; + }, + + hex_with_component: function(hex, componentIndex, value) { + return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent)); + } + + } + + })(), + dat.color.toString, + dat.utils.common), + dat.color.interpret, + dat.utils.common), + dat.utils.requestAnimationFrame = (function () { + + /** + * requirejs version of Paul Irish's RequestAnimationFrame + * http://paulirish.com/2011/requestanimationframe-for-smart-animating/ + */ + + return window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function(callback, element) { + + window.setTimeout(callback, 1000 / 60); + + }; + })(), + dat.dom.CenteredDiv = (function (dom, common) { + + + var CenteredDiv = function() { + + this.backgroundElement = document.createElement('div'); + common.extend(this.backgroundElement.style, { + backgroundColor: 'rgba(0,0,0,0.8)', + top: 0, + left: 0, + display: 'none', + zIndex: '1000', + opacity: 0, + WebkitTransition: 'opacity 0.2s linear' + }); + + dom.makeFullscreen(this.backgroundElement); + this.backgroundElement.style.position = 'fixed'; + + this.domElement = document.createElement('div'); + common.extend(this.domElement.style, { + position: 'fixed', + display: 'none', + zIndex: '1001', + opacity: 0, + WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear' + }); + + + document.body.appendChild(this.backgroundElement); + document.body.appendChild(this.domElement); + + var _this = this; + dom.bind(this.backgroundElement, 'click', function() { + _this.hide(); + }); + + + }; + + CenteredDiv.prototype.show = function() { + + var _this = this; + + + + this.backgroundElement.style.display = 'block'; + + this.domElement.style.display = 'block'; + this.domElement.style.opacity = 0; + // this.domElement.style.top = '52%'; + this.domElement.style.webkitTransform = 'scale(1.1)'; + + this.layout(); + + common.defer(function() { + _this.backgroundElement.style.opacity = 1; + _this.domElement.style.opacity = 1; + _this.domElement.style.webkitTransform = 'scale(1)'; + }); + + }; + + CenteredDiv.prototype.hide = function() { + + var _this = this; + + var hide = function() { + + _this.domElement.style.display = 'none'; + _this.backgroundElement.style.display = 'none'; + + dom.unbind(_this.domElement, 'webkitTransitionEnd', hide); + dom.unbind(_this.domElement, 'transitionend', hide); + dom.unbind(_this.domElement, 'oTransitionEnd', hide); + + }; + + dom.bind(this.domElement, 'webkitTransitionEnd', hide); + dom.bind(this.domElement, 'transitionend', hide); + dom.bind(this.domElement, 'oTransitionEnd', hide); + + this.backgroundElement.style.opacity = 0; + // this.domElement.style.top = '48%'; + this.domElement.style.opacity = 0; + this.domElement.style.webkitTransform = 'scale(1.1)'; + + }; + + CenteredDiv.prototype.layout = function() { + this.domElement.style.left = window.innerWidth/2 - dom.getWidth(this.domElement) / 2 + 'px'; + this.domElement.style.top = window.innerHeight/2 - dom.getHeight(this.domElement) / 2 + 'px'; + }; + + function lockScroll(e) { + console.log(e); + } + + return CenteredDiv; + + })(dat.dom.dom, + dat.utils.common), + dat.dom.dom, + dat.utils.common); + +/***/ }, +/* 5 */ +/***/ function(module, exports) { + + /** + * dat-gui JavaScript Controller Library + * http://code.google.com/p/dat-gui + * + * Copyright 2011 Data Arts Team, Google Creative Lab + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + */ + + /** @namespace */ + var dat = module.exports = dat || {}; + + /** @namespace */ + dat.color = dat.color || {}; + + /** @namespace */ + dat.utils = dat.utils || {}; + + dat.utils.common = (function () { + + var ARR_EACH = Array.prototype.forEach; + var ARR_SLICE = Array.prototype.slice; + + /** + * Band-aid methods for things that should be a lot easier in JavaScript. + * Implementation and structure inspired by underscore.js + * http://documentcloud.github.com/underscore/ + */ + + return { + + BREAK: {}, + + extend: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (!this.isUndefined(obj[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + defaults: function(target) { + + this.each(ARR_SLICE.call(arguments, 1), function(obj) { + + for (var key in obj) + if (this.isUndefined(target[key])) + target[key] = obj[key]; + + }, this); + + return target; + + }, + + compose: function() { + var toCall = ARR_SLICE.call(arguments); + return function() { + var args = ARR_SLICE.call(arguments); + for (var i = toCall.length -1; i >= 0; i--) { + args = [toCall[i].apply(this, args)]; + } + return args[0]; + } + }, + + each: function(obj, itr, scope) { + + + if (ARR_EACH && obj.forEach === ARR_EACH) { + + obj.forEach(itr, scope); + + } else if (obj.length === obj.length + 0) { // Is number but not NaN + + for (var key = 0, l = obj.length; key < l; key++) + if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) + return; + + } else { + + for (var key in obj) + if (itr.call(scope, obj[key], key) === this.BREAK) + return; + + } + + }, + + defer: function(fnc) { + setTimeout(fnc, 0); + }, + + toArray: function(obj) { + if (obj.toArray) return obj.toArray(); + return ARR_SLICE.call(obj); + }, + + isUndefined: function(obj) { + return obj === undefined; + }, + + isNull: function(obj) { + return obj === null; + }, + + isNaN: function(obj) { + return obj !== obj; + }, + + isArray: Array.isArray || function(obj) { + return obj.constructor === Array; + }, + + isObject: function(obj) { + return obj === Object(obj); + }, + + isNumber: function(obj) { + return obj === obj+0; + }, + + isString: function(obj) { + return obj === obj+''; + }, + + isBoolean: function(obj) { + return obj === false || obj === true; + }, + + isFunction: function(obj) { + return Object.prototype.toString.call(obj) === '[object Function]'; + } + + }; + + })(); + + + dat.color.toString = (function (common) { + + return function(color) { + + if (color.a == 1 || common.isUndefined(color.a)) { + + var s = color.hex.toString(16); + while (s.length < 6) { + s = '0' + s; + } + + return '#' + s; + + } else { + + return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')'; + + } + + } + + })(dat.utils.common); + + + dat.Color = dat.color.Color = (function (interpret, math, toString, common) { + + var Color = function() { + + this.__state = interpret.apply(this, arguments); + + if (this.__state === false) { + throw 'Failed to interpret color arguments'; + } + + this.__state.a = this.__state.a || 1; + + + }; + + Color.COMPONENTS = ['r','g','b','h','s','v','hex','a']; + + common.extend(Color.prototype, { + + toString: function() { + return toString(this); + }, + + toOriginal: function() { + return this.__state.conversion.write(this); + } + + }); + + defineRGBComponent(Color.prototype, 'r', 2); + defineRGBComponent(Color.prototype, 'g', 1); + defineRGBComponent(Color.prototype, 'b', 0); + + defineHSVComponent(Color.prototype, 'h'); + defineHSVComponent(Color.prototype, 's'); + defineHSVComponent(Color.prototype, 'v'); + + Object.defineProperty(Color.prototype, 'a', { + + get: function() { + return this.__state.a; + }, + + set: function(v) { + this.__state.a = v; + } + + }); + + Object.defineProperty(Color.prototype, 'hex', { + + get: function() { + + if (!this.__state.space !== 'HEX') { + this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b); + } + + return this.__state.hex; + + }, + + set: function(v) { + + this.__state.space = 'HEX'; + this.__state.hex = v; + + } + + }); + + function defineRGBComponent(target, component, componentHexIndex) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'RGB') { + return this.__state[component]; + } + + recalculateRGB(this, component, componentHexIndex); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'RGB') { + recalculateRGB(this, component, componentHexIndex); + this.__state.space = 'RGB'; + } + + this.__state[component] = v; + + } + + }); + + } + + function defineHSVComponent(target, component) { + + Object.defineProperty(target, component, { + + get: function() { + + if (this.__state.space === 'HSV') + return this.__state[component]; + + recalculateHSV(this); + + return this.__state[component]; + + }, + + set: function(v) { + + if (this.__state.space !== 'HSV') { + recalculateHSV(this); + this.__state.space = 'HSV'; + } + + this.__state[component] = v; + + } + + }); + + } + + function recalculateRGB(color, component, componentHexIndex) { + + if (color.__state.space === 'HEX') { + + color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex); + + } else if (color.__state.space === 'HSV') { + + common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v)); + + } else { + + throw 'Corrupted color state'; + + } + + } + + function recalculateHSV(color) { + + var result = math.rgb_to_hsv(color.r, color.g, color.b); + + common.extend(color.__state, + { + s: result.s, + v: result.v + } + ); + + if (!common.isNaN(result.h)) { + color.__state.h = result.h; + } else if (common.isUndefined(color.__state.h)) { + color.__state.h = 0; + } + + } + + return Color; + + })(dat.color.interpret = (function (toString, common) { + + var result, toReturn; + + var interpret = function() { + + toReturn = false; + + var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0]; + + common.each(INTERPRETATIONS, function(family) { + + if (family.litmus(original)) { + + common.each(family.conversions, function(conversion, conversionName) { + + result = conversion.read(original); + + if (toReturn === false && result !== false) { + toReturn = result; + result.conversionName = conversionName; + result.conversion = conversion; + return common.BREAK; + + } + + }); + + return common.BREAK; + + } + + }); + + return toReturn; + + }; + + var INTERPRETATIONS = [ + + // Strings + { + + litmus: common.isString, + + conversions: { + + THREE_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt( + '0x' + + test[1].toString() + test[1].toString() + + test[2].toString() + test[2].toString() + + test[3].toString() + test[3].toString()) + }; + + }, + + write: toString + + }, + + SIX_CHAR_HEX: { + + read: function(original) { + + var test = original.match(/^#([A-F0-9]{6})$/i); + if (test === null) return false; + + return { + space: 'HEX', + hex: parseInt('0x' + test[1].toString()) + }; + + }, + + write: toString + + }, + + CSS_RGB: { + + read: function(original) { + + var test = original.match(/^rgb\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]) + }; + + }, + + write: toString + + }, + + CSS_RGBA: { + + read: function(original) { + + var test = original.match(/^rgba\(\s*(.+)\s*,\s*(.+)\s*,\s*(.+)\s*\,\s*(.+)\s*\)/); + if (test === null) return false; + + return { + space: 'RGB', + r: parseFloat(test[1]), + g: parseFloat(test[2]), + b: parseFloat(test[3]), + a: parseFloat(test[4]) + }; + + }, + + write: toString + + } + + } + + }, + + // Numbers + { + + litmus: common.isNumber, + + conversions: { + + HEX: { + read: function(original) { + return { + space: 'HEX', + hex: original, + conversionName: 'HEX' + } + }, + + write: function(color) { + return color.hex; + } + } + + } + + }, + + // Arrays + { + + litmus: common.isArray, + + conversions: { + + RGB_ARRAY: { + read: function(original) { + if (original.length != 3) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b]; + } + + }, + + RGBA_ARRAY: { + read: function(original) { + if (original.length != 4) return false; + return { + space: 'RGB', + r: original[0], + g: original[1], + b: original[2], + a: original[3] + }; + }, + + write: function(color) { + return [color.r, color.g, color.b, color.a]; + } + + } + + } + + }, + + // Objects + { + + litmus: common.isObject, + + conversions: { + + RGBA_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b) && + common.isNumber(original.a)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b, + a: color.a + } + } + }, + + RGB_OBJ: { + read: function(original) { + if (common.isNumber(original.r) && + common.isNumber(original.g) && + common.isNumber(original.b)) { + return { + space: 'RGB', + r: original.r, + g: original.g, + b: original.b + } + } + return false; + }, + + write: function(color) { + return { + r: color.r, + g: color.g, + b: color.b + } + } + }, + + HSVA_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v) && + common.isNumber(original.a)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v, + a: original.a + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v, + a: color.a + } + } + }, + + HSV_OBJ: { + read: function(original) { + if (common.isNumber(original.h) && + common.isNumber(original.s) && + common.isNumber(original.v)) { + return { + space: 'HSV', + h: original.h, + s: original.s, + v: original.v + } + } + return false; + }, + + write: function(color) { + return { + h: color.h, + s: color.s, + v: color.v + } + } + + } + + } + + } + + + ]; + + return interpret; + + + })(dat.color.toString, + dat.utils.common), + dat.color.math = (function () { + + var tmpComponent; + + return { + + hsv_to_rgb: function(h, s, v) { + + var hi = Math.floor(h / 60) % 6; + + var f = h / 60 - Math.floor(h / 60); + var p = v * (1.0 - s); + var q = v * (1.0 - (f * s)); + var t = v * (1.0 - ((1.0 - f) * s)); + var c = [ + [v, t, p], + [q, v, p], + [p, v, t], + [p, q, v], + [t, p, v], + [v, p, q] + ][hi]; + + return { + r: c[0] * 255, + g: c[1] * 255, + b: c[2] * 255 + }; + + }, + + rgb_to_hsv: function(r, g, b) { + + var min = Math.min(r, g, b), + max = Math.max(r, g, b), + delta = max - min, + h, s; + + if (max != 0) { + s = delta / max; + } else { + return { + h: NaN, + s: 0, + v: 0 + }; + } + + if (r == max) { + h = (g - b) / delta; + } else if (g == max) { + h = 2 + (b - r) / delta; + } else { + h = 4 + (r - g) / delta; + } + h /= 6; + if (h < 0) { + h += 1; + } + + return { + h: h * 360, + s: s, + v: max / 255 + }; + }, + + rgb_to_hex: function(r, g, b) { + var hex = this.hex_with_component(0, 2, r); + hex = this.hex_with_component(hex, 1, g); + hex = this.hex_with_component(hex, 0, b); + return hex; + }, + + component_from_hex: function(hex, componentIndex) { + return (hex >> (componentIndex * 8)) & 0xFF; + }, + + hex_with_component: function(hex, componentIndex, value) { + return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent)); + } + + } + + })(), + dat.color.toString, + dat.utils.common); + +/***/ }, +/* 6 */ +/***/ function(module, exports, __webpack_require__) { + + (function (global, factory) { + true ? factory(exports) : + typeof define === 'function' && define.amd ? define(['exports'], factory) : + (factory((global.THREE = global.THREE || {}))); + }(this, (function (exports) { 'use strict'; + + // Polyfills + + if ( Number.EPSILON === undefined ) { + + Number.EPSILON = Math.pow( 2, - 52 ); + + } + + // + + if ( Math.sign === undefined ) { + + // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign + + Math.sign = function ( x ) { + + return ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x; + + }; + + } + + if ( Function.prototype.name === undefined ) { + + // Missing in IE9-11. + // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name + + Object.defineProperty( Function.prototype, 'name', { + + get: function () { + + return this.toString().match( /^\s*function\s*(\S*)\s*\(/ )[ 1 ]; + + } + + } ); + + } + + if ( Object.assign === undefined ) { + + // Missing in IE. + // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign + + ( function () { + + Object.assign = function ( target ) { + + 'use strict'; + + if ( target === undefined || target === null ) { + + throw new TypeError( 'Cannot convert undefined or null to object' ); + + } + + var output = Object( target ); + + for ( var index = 1; index < arguments.length; index ++ ) { + + var source = arguments[ index ]; + + if ( source !== undefined && source !== null ) { + + for ( var nextKey in source ) { + + if ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) { + + output[ nextKey ] = source[ nextKey ]; + + } + + } + + } + + } + + return output; + + }; + + } )(); + + } + + /** + * https://github.com/mrdoob/eventdispatcher.js/ + */ + + function EventDispatcher() {} + + Object.assign( EventDispatcher.prototype, { + + addEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) this._listeners = {}; + + var listeners = this._listeners; + + if ( listeners[ type ] === undefined ) { + + listeners[ type ] = []; + + } + + if ( listeners[ type ].indexOf( listener ) === - 1 ) { + + listeners[ type ].push( listener ); + + } + + }, + + hasEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) return false; + + var listeners = this._listeners; + + if ( listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1 ) { + + return true; + + } + + return false; + + }, + + removeEventListener: function ( type, listener ) { + + if ( this._listeners === undefined ) return; + + var listeners = this._listeners; + var listenerArray = listeners[ type ]; + + if ( listenerArray !== undefined ) { + + var index = listenerArray.indexOf( listener ); + + if ( index !== - 1 ) { + + listenerArray.splice( index, 1 ); + + } + + } + + }, + + dispatchEvent: function ( event ) { + + if ( this._listeners === undefined ) return; + + var listeners = this._listeners; + var listenerArray = listeners[ event.type ]; + + if ( listenerArray !== undefined ) { + + event.target = this; + + var array = [], i = 0; + var length = listenerArray.length; + + for ( i = 0; i < length; i ++ ) { + + array[ i ] = listenerArray[ i ]; + + } + + for ( i = 0; i < length; i ++ ) { + + array[ i ].call( this, event ); + + } + + } + + } + + } ); + + var REVISION = '82'; + var MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 }; + var CullFaceNone = 0; + var CullFaceBack = 1; + var CullFaceFront = 2; + var CullFaceFrontBack = 3; + var FrontFaceDirectionCW = 0; + var FrontFaceDirectionCCW = 1; + var BasicShadowMap = 0; + var PCFShadowMap = 1; + var PCFSoftShadowMap = 2; + var FrontSide = 0; + var BackSide = 1; + var DoubleSide = 2; + var FlatShading = 1; + var SmoothShading = 2; + var NoColors = 0; + var FaceColors = 1; + var VertexColors = 2; + var NoBlending = 0; + var NormalBlending = 1; + var AdditiveBlending = 2; + var SubtractiveBlending = 3; + var MultiplyBlending = 4; + var CustomBlending = 5; + var BlendingMode = { + NoBlending: NoBlending, + NormalBlending: NormalBlending, + AdditiveBlending: AdditiveBlending, + SubtractiveBlending: SubtractiveBlending, + MultiplyBlending: MultiplyBlending, + CustomBlending: CustomBlending + }; + var AddEquation = 100; + var SubtractEquation = 101; + var ReverseSubtractEquation = 102; + var MinEquation = 103; + var MaxEquation = 104; + var ZeroFactor = 200; + var OneFactor = 201; + var SrcColorFactor = 202; + var OneMinusSrcColorFactor = 203; + var SrcAlphaFactor = 204; + var OneMinusSrcAlphaFactor = 205; + var DstAlphaFactor = 206; + var OneMinusDstAlphaFactor = 207; + var DstColorFactor = 208; + var OneMinusDstColorFactor = 209; + var SrcAlphaSaturateFactor = 210; + var NeverDepth = 0; + var AlwaysDepth = 1; + var LessDepth = 2; + var LessEqualDepth = 3; + var EqualDepth = 4; + var GreaterEqualDepth = 5; + var GreaterDepth = 6; + var NotEqualDepth = 7; + var MultiplyOperation = 0; + var MixOperation = 1; + var AddOperation = 2; + var NoToneMapping = 0; + var LinearToneMapping = 1; + var ReinhardToneMapping = 2; + var Uncharted2ToneMapping = 3; + var CineonToneMapping = 4; + var UVMapping = 300; + var CubeReflectionMapping = 301; + var CubeRefractionMapping = 302; + var EquirectangularReflectionMapping = 303; + var EquirectangularRefractionMapping = 304; + var SphericalReflectionMapping = 305; + var CubeUVReflectionMapping = 306; + var CubeUVRefractionMapping = 307; + var TextureMapping = { + UVMapping: UVMapping, + CubeReflectionMapping: CubeReflectionMapping, + CubeRefractionMapping: CubeRefractionMapping, + EquirectangularReflectionMapping: EquirectangularReflectionMapping, + EquirectangularRefractionMapping: EquirectangularRefractionMapping, + SphericalReflectionMapping: SphericalReflectionMapping, + CubeUVReflectionMapping: CubeUVReflectionMapping, + CubeUVRefractionMapping: CubeUVRefractionMapping + }; + var RepeatWrapping = 1000; + var ClampToEdgeWrapping = 1001; + var MirroredRepeatWrapping = 1002; + var TextureWrapping = { + RepeatWrapping: RepeatWrapping, + ClampToEdgeWrapping: ClampToEdgeWrapping, + MirroredRepeatWrapping: MirroredRepeatWrapping + }; + var NearestFilter = 1003; + var NearestMipMapNearestFilter = 1004; + var NearestMipMapLinearFilter = 1005; + var LinearFilter = 1006; + var LinearMipMapNearestFilter = 1007; + var LinearMipMapLinearFilter = 1008; + var TextureFilter = { + NearestFilter: NearestFilter, + NearestMipMapNearestFilter: NearestMipMapNearestFilter, + NearestMipMapLinearFilter: NearestMipMapLinearFilter, + LinearFilter: LinearFilter, + LinearMipMapNearestFilter: LinearMipMapNearestFilter, + LinearMipMapLinearFilter: LinearMipMapLinearFilter + }; + var UnsignedByteType = 1009; + var ByteType = 1010; + var ShortType = 1011; + var UnsignedShortType = 1012; + var IntType = 1013; + var UnsignedIntType = 1014; + var FloatType = 1015; + var HalfFloatType = 1016; + var UnsignedShort4444Type = 1017; + var UnsignedShort5551Type = 1018; + var UnsignedShort565Type = 1019; + var UnsignedInt248Type = 1020; + var AlphaFormat = 1021; + var RGBFormat = 1022; + var RGBAFormat = 1023; + var LuminanceFormat = 1024; + var LuminanceAlphaFormat = 1025; + var RGBEFormat = RGBAFormat; + var DepthFormat = 1026; + var DepthStencilFormat = 1027; + var RGB_S3TC_DXT1_Format = 2001; + var RGBA_S3TC_DXT1_Format = 2002; + var RGBA_S3TC_DXT3_Format = 2003; + var RGBA_S3TC_DXT5_Format = 2004; + var RGB_PVRTC_4BPPV1_Format = 2100; + var RGB_PVRTC_2BPPV1_Format = 2101; + var RGBA_PVRTC_4BPPV1_Format = 2102; + var RGBA_PVRTC_2BPPV1_Format = 2103; + var RGB_ETC1_Format = 2151; + var LoopOnce = 2200; + var LoopRepeat = 2201; + var LoopPingPong = 2202; + var InterpolateDiscrete = 2300; + var InterpolateLinear = 2301; + var InterpolateSmooth = 2302; + var ZeroCurvatureEnding = 2400; + var ZeroSlopeEnding = 2401; + var WrapAroundEnding = 2402; + var TrianglesDrawMode = 0; + var TriangleStripDrawMode = 1; + var TriangleFanDrawMode = 2; + var LinearEncoding = 3000; + var sRGBEncoding = 3001; + var GammaEncoding = 3007; + var RGBEEncoding = 3002; + var LogLuvEncoding = 3003; + var RGBM7Encoding = 3004; + var RGBM16Encoding = 3005; + var RGBDEncoding = 3006; + var BasicDepthPacking = 3200; + var RGBADepthPacking = 3201; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + var _Math = { + + DEG2RAD: Math.PI / 180, + RAD2DEG: 180 / Math.PI, + + generateUUID: function () { + + // http://www.broofa.com/Tools/Math.uuid.htm + + var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' ); + var uuid = new Array( 36 ); + var rnd = 0, r; + + return function generateUUID() { + + for ( var i = 0; i < 36; i ++ ) { + + if ( i === 8 || i === 13 || i === 18 || i === 23 ) { + + uuid[ i ] = '-'; + + } else if ( i === 14 ) { + + uuid[ i ] = '4'; + + } else { + + if ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0; + r = rnd & 0xf; + rnd = rnd >> 4; + uuid[ i ] = chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ]; + + } + + } + + return uuid.join( '' ); + + }; + + }(), + + clamp: function ( value, min, max ) { + + return Math.max( min, Math.min( max, value ) ); + + }, + + // compute euclidian modulo of m % n + // https://en.wikipedia.org/wiki/Modulo_operation + + euclideanModulo: function ( n, m ) { + + return ( ( n % m ) + m ) % m; + + }, + + // Linear mapping from range to range + + mapLinear: function ( x, a1, a2, b1, b2 ) { + + return b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 ); + + }, + + // https://en.wikipedia.org/wiki/Linear_interpolation + + lerp: function ( x, y, t ) { + + return ( 1 - t ) * x + t * y; + + }, + + // http://en.wikipedia.org/wiki/Smoothstep + + smoothstep: function ( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * ( 3 - 2 * x ); + + }, + + smootherstep: function ( x, min, max ) { + + if ( x <= min ) return 0; + if ( x >= max ) return 1; + + x = ( x - min ) / ( max - min ); + + return x * x * x * ( x * ( x * 6 - 15 ) + 10 ); + + }, + + random16: function () { + + console.warn( 'THREE.Math.random16() has been deprecated. Use Math.random() instead.' ); + return Math.random(); + + }, + + // Random integer from interval + + randInt: function ( low, high ) { + + return low + Math.floor( Math.random() * ( high - low + 1 ) ); + + }, + + // Random float from interval + + randFloat: function ( low, high ) { + + return low + Math.random() * ( high - low ); + + }, + + // Random float from <-range/2, range/2> interval + + randFloatSpread: function ( range ) { + + return range * ( 0.5 - Math.random() ); + + }, + + degToRad: function ( degrees ) { + + return degrees * _Math.DEG2RAD; + + }, + + radToDeg: function ( radians ) { + + return radians * _Math.RAD2DEG; + + }, + + isPowerOfTwo: function ( value ) { + + return ( value & ( value - 1 ) ) === 0 && value !== 0; + + }, + + nearestPowerOfTwo: function ( value ) { + + return Math.pow( 2, Math.round( Math.log( value ) / Math.LN2 ) ); + + }, + + nextPowerOfTwo: function ( value ) { + + value --; + value |= value >> 1; + value |= value >> 2; + value |= value >> 4; + value |= value >> 8; + value |= value >> 16; + value ++; + + return value; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author philogb / http://blog.thejit.org/ + * @author egraether / http://egraether.com/ + * @author zz85 / http://www.lab4games.net/zz85/blog + */ + + function Vector2( x, y ) { + + this.x = x || 0; + this.y = y || 0; + + } + + Vector2.prototype = { + + constructor: Vector2, + + isVector2: true, + + get width() { + + return this.x; + + }, + + set width( value ) { + + this.x = value; + + }, + + get height() { + + return this.y; + + }, + + set height( value ) { + + this.y = value; + + }, + + // + + set: function ( x, y ) { + + this.x = x; + this.y = y; + + return this; + + }, + + setScalar: function ( scalar ) { + + this.x = scalar; + this.y = scalar; + + return this; + + }, + + setX: function ( x ) { + + this.x = x; + + return this; + + }, + + setY: function ( y ) { + + this.y = y; + + return this; + + }, + + setComponent: function ( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + }, + + getComponent: function ( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + default: throw new Error( 'index is out of range: ' + index ); + + } + + }, + + clone: function () { + + return new this.constructor( this.x, this.y ); + + }, + + copy: function ( v ) { + + this.x = v.x; + this.y = v.y; + + return this; + + }, + + add: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + + return this; + + }, + + addScalar: function ( s ) { + + this.x += s; + this.y += s; + + return this; + + }, + + addVectors: function ( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + + return this; + + }, + + addScaledVector: function ( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + + return this; + + }, + + sub: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + + return this; + + }, + + subScalar: function ( s ) { + + this.x -= s; + this.y -= s; + + return this; + + }, + + subVectors: function ( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + + return this; + + }, + + multiply: function ( v ) { + + this.x *= v.x; + this.y *= v.y; + + return this; + + }, + + multiplyScalar: function ( scalar ) { + + if ( isFinite( scalar ) ) { + + this.x *= scalar; + this.y *= scalar; + + } else { + + this.x = 0; + this.y = 0; + + } + + return this; + + }, + + divide: function ( v ) { + + this.x /= v.x; + this.y /= v.y; + + return this; + + }, + + divideScalar: function ( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + }, + + min: function ( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + + return this; + + }, + + max: function ( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + + return this; + + }, + + clamp: function ( min, max ) { + + // This function assumes min < max, if this assumption isn't true it will not operate correctly + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + + return this; + + }, + + clampScalar: function () { + + var min, max; + + return function clampScalar( minVal, maxVal ) { + + if ( min === undefined ) { + + min = new Vector2(); + max = new Vector2(); + + } + + min.set( minVal, minVal ); + max.set( maxVal, maxVal ); + + return this.clamp( min, max ); + + }; + + }(), + + clampLength: function ( min, max ) { + + var length = this.length(); + + return this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length ); + + }, + + floor: function () { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + + return this; + + }, + + ceil: function () { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + + return this; + + }, + + round: function () { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + + return this; + + }, + + roundToZero: function () { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + + return this; + + }, + + negate: function () { + + this.x = - this.x; + this.y = - this.y; + + return this; + + }, + + dot: function ( v ) { + + return this.x * v.x + this.y * v.y; + + }, + + lengthSq: function () { + + return this.x * this.x + this.y * this.y; + + }, + + length: function () { + + return Math.sqrt( this.x * this.x + this.y * this.y ); + + }, + + lengthManhattan: function() { + + return Math.abs( this.x ) + Math.abs( this.y ); + + }, + + normalize: function () { + + return this.divideScalar( this.length() ); + + }, + + angle: function () { + + // computes the angle in radians with respect to the positive x-axis + + var angle = Math.atan2( this.y, this.x ); + + if ( angle < 0 ) angle += 2 * Math.PI; + + return angle; + + }, + + distanceTo: function ( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + }, + + distanceToSquared: function ( v ) { + + var dx = this.x - v.x, dy = this.y - v.y; + return dx * dx + dy * dy; + + }, + + distanceToManhattan: function ( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ); + + }, + + setLength: function ( length ) { + + return this.multiplyScalar( length / this.length() ); + + }, + + lerp: function ( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + + return this; + + }, + + lerpVectors: function ( v1, v2, alpha ) { + + return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 ); + + }, + + equals: function ( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) ); + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + + return array; + + }, + + fromAttribute: function ( attribute, index, offset ) { + + if ( offset === undefined ) offset = 0; + + index = index * attribute.itemSize + offset; + + this.x = attribute.array[ index ]; + this.y = attribute.array[ index + 1 ]; + + return this; + + }, + + rotateAround: function ( center, angle ) { + + var c = Math.cos( angle ), s = Math.sin( angle ); + + var x = this.x - center.x; + var y = this.y - center.y; + + this.x = x * c - y * s + center.x; + this.y = x * s + y * c + center.y; + + return this; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * @author szimek / https://github.com/szimek/ + */ + + function Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) { + + Object.defineProperty( this, 'id', { value: TextureIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.sourceFile = ''; + + this.image = image !== undefined ? image : Texture.DEFAULT_IMAGE; + this.mipmaps = []; + + this.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING; + + this.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping; + this.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping; + + this.magFilter = magFilter !== undefined ? magFilter : LinearFilter; + this.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter; + + this.anisotropy = anisotropy !== undefined ? anisotropy : 1; + + this.format = format !== undefined ? format : RGBAFormat; + this.type = type !== undefined ? type : UnsignedByteType; + + this.offset = new Vector2( 0, 0 ); + this.repeat = new Vector2( 1, 1 ); + + this.generateMipmaps = true; + this.premultiplyAlpha = false; + this.flipY = true; + this.unpackAlignment = 4; // valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml) + + + // Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap. + // + // Also changing the encoding after already used by a Material will not automatically make the Material + // update. You need to explicitly call Material.needsUpdate to trigger it to recompile. + this.encoding = encoding !== undefined ? encoding : LinearEncoding; + + this.version = 0; + this.onUpdate = null; + + } + + Texture.DEFAULT_IMAGE = undefined; + Texture.DEFAULT_MAPPING = UVMapping; + + Texture.prototype = { + + constructor: Texture, + + isTexture: true, + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.image = source.image; + this.mipmaps = source.mipmaps.slice( 0 ); + + this.mapping = source.mapping; + + this.wrapS = source.wrapS; + this.wrapT = source.wrapT; + + this.magFilter = source.magFilter; + this.minFilter = source.minFilter; + + this.anisotropy = source.anisotropy; + + this.format = source.format; + this.type = source.type; + + this.offset.copy( source.offset ); + this.repeat.copy( source.repeat ); + + this.generateMipmaps = source.generateMipmaps; + this.premultiplyAlpha = source.premultiplyAlpha; + this.flipY = source.flipY; + this.unpackAlignment = source.unpackAlignment; + this.encoding = source.encoding; + + return this; + + }, + + toJSON: function ( meta ) { + + if ( meta.textures[ this.uuid ] !== undefined ) { + + return meta.textures[ this.uuid ]; + + } + + function getDataURL( image ) { + + var canvas; + + if ( image.toDataURL !== undefined ) { + + canvas = image; + + } else { + + canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + canvas.width = image.width; + canvas.height = image.height; + + canvas.getContext( '2d' ).drawImage( image, 0, 0, image.width, image.height ); + + } + + if ( canvas.width > 2048 || canvas.height > 2048 ) { + + return canvas.toDataURL( 'image/jpeg', 0.6 ); + + } else { + + return canvas.toDataURL( 'image/png' ); + + } + + } + + var output = { + metadata: { + version: 4.4, + type: 'Texture', + generator: 'Texture.toJSON' + }, + + uuid: this.uuid, + name: this.name, + + mapping: this.mapping, + + repeat: [ this.repeat.x, this.repeat.y ], + offset: [ this.offset.x, this.offset.y ], + wrap: [ this.wrapS, this.wrapT ], + + minFilter: this.minFilter, + magFilter: this.magFilter, + anisotropy: this.anisotropy, + + flipY: this.flipY + }; + + if ( this.image !== undefined ) { + + // TODO: Move to THREE.Image + + var image = this.image; + + if ( image.uuid === undefined ) { + + image.uuid = _Math.generateUUID(); // UGH + + } + + if ( meta.images[ image.uuid ] === undefined ) { + + meta.images[ image.uuid ] = { + uuid: image.uuid, + url: getDataURL( image ) + }; + + } + + output.image = image.uuid; + + } + + meta.textures[ this.uuid ] = output; + + return output; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + }, + + transformUv: function ( uv ) { + + if ( this.mapping !== UVMapping ) return; + + uv.multiply( this.repeat ); + uv.add( this.offset ); + + if ( uv.x < 0 || uv.x > 1 ) { + + switch ( this.wrapS ) { + + case RepeatWrapping: + + uv.x = uv.x - Math.floor( uv.x ); + break; + + case ClampToEdgeWrapping: + + uv.x = uv.x < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) { + + uv.x = Math.ceil( uv.x ) - uv.x; + + } else { + + uv.x = uv.x - Math.floor( uv.x ); + + } + break; + + } + + } + + if ( uv.y < 0 || uv.y > 1 ) { + + switch ( this.wrapT ) { + + case RepeatWrapping: + + uv.y = uv.y - Math.floor( uv.y ); + break; + + case ClampToEdgeWrapping: + + uv.y = uv.y < 0 ? 0 : 1; + break; + + case MirroredRepeatWrapping: + + if ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) { + + uv.y = Math.ceil( uv.y ) - uv.y; + + } else { + + uv.y = uv.y - Math.floor( uv.y ); + + } + break; + + } + + } + + if ( this.flipY ) { + + uv.y = 1 - uv.y; + + } + + } + + }; + + Object.assign( Texture.prototype, EventDispatcher.prototype ); + + var count = 0; + function TextureIdCount() { return count++; } + + /** + * @author supereggbert / http://www.paulbrunt.co.uk/ + * @author philogb / http://blog.thejit.org/ + * @author mikael emtinger / http://gomo.se/ + * @author egraether / http://egraether.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function Vector4( x, y, z, w ) { + + this.x = x || 0; + this.y = y || 0; + this.z = z || 0; + this.w = ( w !== undefined ) ? w : 1; + + } + + Vector4.prototype = { + + constructor: Vector4, + + isVector4: true, + + set: function ( x, y, z, w ) { + + this.x = x; + this.y = y; + this.z = z; + this.w = w; + + return this; + + }, + + setScalar: function ( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + this.w = scalar; + + return this; + + }, + + setX: function ( x ) { + + this.x = x; + + return this; + + }, + + setY: function ( y ) { + + this.y = y; + + return this; + + }, + + setZ: function ( z ) { + + this.z = z; + + return this; + + }, + + setW: function ( w ) { + + this.w = w; + + return this; + + }, + + setComponent: function ( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + case 3: this.w = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + }, + + getComponent: function ( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + case 3: return this.w; + default: throw new Error( 'index is out of range: ' + index ); + + } + + }, + + clone: function () { + + return new this.constructor( this.x, this.y, this.z, this.w ); + + }, + + copy: function ( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + this.w = ( v.w !== undefined ) ? v.w : 1; + + return this; + + }, + + add: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + this.w += v.w; + + return this; + + }, + + addScalar: function ( s ) { + + this.x += s; + this.y += s; + this.z += s; + this.w += s; + + return this; + + }, + + addVectors: function ( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + this.w = a.w + b.w; + + return this; + + }, + + addScaledVector: function ( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + this.w += v.w * s; + + return this; + + }, + + sub: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + this.w -= v.w; + + return this; + + }, + + subScalar: function ( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + this.w -= s; + + return this; + + }, + + subVectors: function ( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + this.w = a.w - b.w; + + return this; + + }, + + multiplyScalar: function ( scalar ) { + + if ( isFinite( scalar ) ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + this.w *= scalar; + + } else { + + this.x = 0; + this.y = 0; + this.z = 0; + this.w = 0; + + } + + return this; + + }, + + applyMatrix4: function ( m ) { + + var x = this.x, y = this.y, z = this.z, w = this.w; + var e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w; + this.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w; + + return this; + + }, + + divideScalar: function ( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + }, + + setAxisAngleFromQuaternion: function ( q ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm + + // q is assumed to be normalized + + this.w = 2 * Math.acos( q.w ); + + var s = Math.sqrt( 1 - q.w * q.w ); + + if ( s < 0.0001 ) { + + this.x = 1; + this.y = 0; + this.z = 0; + + } else { + + this.x = q.x / s; + this.y = q.y / s; + this.z = q.z / s; + + } + + return this; + + }, + + setAxisAngleFromRotationMatrix: function ( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + var angle, x, y, z, // variables for result + epsilon = 0.01, // margin to allow for rounding errors + epsilon2 = 0.1, // margin to distinguish between 0 and 180 degrees + + te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + if ( ( Math.abs( m12 - m21 ) < epsilon ) && + ( Math.abs( m13 - m31 ) < epsilon ) && + ( Math.abs( m23 - m32 ) < epsilon ) ) { + + // singularity found + // first check for identity matrix which must have +1 for all terms + // in leading diagonal and zero in other terms + + if ( ( Math.abs( m12 + m21 ) < epsilon2 ) && + ( Math.abs( m13 + m31 ) < epsilon2 ) && + ( Math.abs( m23 + m32 ) < epsilon2 ) && + ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) { + + // this singularity is identity matrix so angle = 0 + + this.set( 1, 0, 0, 0 ); + + return this; // zero angle, arbitrary axis + + } + + // otherwise this singularity is angle = 180 + + angle = Math.PI; + + var xx = ( m11 + 1 ) / 2; + var yy = ( m22 + 1 ) / 2; + var zz = ( m33 + 1 ) / 2; + var xy = ( m12 + m21 ) / 4; + var xz = ( m13 + m31 ) / 4; + var yz = ( m23 + m32 ) / 4; + + if ( ( xx > yy ) && ( xx > zz ) ) { + + // m11 is the largest diagonal term + + if ( xx < epsilon ) { + + x = 0; + y = 0.707106781; + z = 0.707106781; + + } else { + + x = Math.sqrt( xx ); + y = xy / x; + z = xz / x; + + } + + } else if ( yy > zz ) { + + // m22 is the largest diagonal term + + if ( yy < epsilon ) { + + x = 0.707106781; + y = 0; + z = 0.707106781; + + } else { + + y = Math.sqrt( yy ); + x = xy / y; + z = yz / y; + + } + + } else { + + // m33 is the largest diagonal term so base result on this + + if ( zz < epsilon ) { + + x = 0.707106781; + y = 0.707106781; + z = 0; + + } else { + + z = Math.sqrt( zz ); + x = xz / z; + y = yz / z; + + } + + } + + this.set( x, y, z, angle ); + + return this; // return 180 deg rotation + + } + + // as we have reached here there are no singularities so we can handle normally + + var s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) + + ( m13 - m31 ) * ( m13 - m31 ) + + ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize + + if ( Math.abs( s ) < 0.001 ) s = 1; + + // prevent divide by zero, should not happen if matrix is orthogonal and should be + // caught by singularity test above, but I've left it in just in case + + this.x = ( m32 - m23 ) / s; + this.y = ( m13 - m31 ) / s; + this.z = ( m21 - m12 ) / s; + this.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 ); + + return this; + + }, + + min: function ( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + this.w = Math.min( this.w, v.w ); + + return this; + + }, + + max: function ( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + this.w = Math.max( this.w, v.w ); + + return this; + + }, + + clamp: function ( min, max ) { + + // This function assumes min < max, if this assumption isn't true it will not operate correctly + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + this.w = Math.max( min.w, Math.min( max.w, this.w ) ); + + return this; + + }, + + clampScalar: function () { + + var min, max; + + return function clampScalar( minVal, maxVal ) { + + if ( min === undefined ) { + + min = new Vector4(); + max = new Vector4(); + + } + + min.set( minVal, minVal, minVal, minVal ); + max.set( maxVal, maxVal, maxVal, maxVal ); + + return this.clamp( min, max ); + + }; + + }(), + + floor: function () { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + this.w = Math.floor( this.w ); + + return this; + + }, + + ceil: function () { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + this.w = Math.ceil( this.w ); + + return this; + + }, + + round: function () { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + this.w = Math.round( this.w ); + + return this; + + }, + + roundToZero: function () { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + this.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w ); + + return this; + + }, + + negate: function () { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + this.w = - this.w; + + return this; + + }, + + dot: function ( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w; + + }, + + lengthSq: function () { + + return this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w; + + }, + + length: function () { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w ); + + }, + + lengthManhattan: function () { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w ); + + }, + + normalize: function () { + + return this.divideScalar( this.length() ); + + }, + + setLength: function ( length ) { + + return this.multiplyScalar( length / this.length() ); + + }, + + lerp: function ( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + this.w += ( v.w - this.w ) * alpha; + + return this; + + }, + + lerpVectors: function ( v1, v2, alpha ) { + + return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 ); + + }, + + equals: function ( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) ); + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + this.w = array[ offset + 3 ]; + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + array[ offset + 3 ] = this.w; + + return array; + + }, + + fromAttribute: function ( attribute, index, offset ) { + + if ( offset === undefined ) offset = 0; + + index = index * attribute.itemSize + offset; + + this.x = attribute.array[ index ]; + this.y = attribute.array[ index + 1 ]; + this.z = attribute.array[ index + 2 ]; + this.w = attribute.array[ index + 3 ]; + + return this; + + } + + }; + + /** + * @author szimek / https://github.com/szimek/ + * @author alteredq / http://alteredqualia.com/ + * @author Marius Kintel / https://github.com/kintel + */ + + /* + In options, we can specify: + * Texture parameters for an auto-generated target texture + * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers + */ + function WebGLRenderTarget( width, height, options ) { + + this.uuid = _Math.generateUUID(); + + this.width = width; + this.height = height; + + this.scissor = new Vector4( 0, 0, width, height ); + this.scissorTest = false; + + this.viewport = new Vector4( 0, 0, width, height ); + + options = options || {}; + + if ( options.minFilter === undefined ) options.minFilter = LinearFilter; + + this.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding ); + + this.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true; + this.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true; + this.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null; + + } + + Object.assign( WebGLRenderTarget.prototype, EventDispatcher.prototype, { + + isWebGLRenderTarget: true, + + setSize: function ( width, height ) { + + if ( this.width !== width || this.height !== height ) { + + this.width = width; + this.height = height; + + this.dispose(); + + } + + this.viewport.set( 0, 0, width, height ); + this.scissor.set( 0, 0, width, height ); + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.width = source.width; + this.height = source.height; + + this.viewport.copy( source.viewport ); + + this.texture = source.texture.clone(); + + this.depthBuffer = source.depthBuffer; + this.stencilBuffer = source.stencilBuffer; + this.depthTexture = source.depthTexture; + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com + */ + + function WebGLRenderTargetCube( width, height, options ) { + + WebGLRenderTarget.call( this, width, height, options ); + + this.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5 + this.activeMipMapLevel = 0; + + } + + WebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype ); + WebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube; + + WebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true; + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author WestLangley / http://github.com/WestLangley + * @author bhouston / http://clara.io + */ + + function Quaternion( x, y, z, w ) { + + this._x = x || 0; + this._y = y || 0; + this._z = z || 0; + this._w = ( w !== undefined ) ? w : 1; + + } + + Quaternion.prototype = { + + constructor: Quaternion, + + get x () { + + return this._x; + + }, + + set x ( value ) { + + this._x = value; + this.onChangeCallback(); + + }, + + get y () { + + return this._y; + + }, + + set y ( value ) { + + this._y = value; + this.onChangeCallback(); + + }, + + get z () { + + return this._z; + + }, + + set z ( value ) { + + this._z = value; + this.onChangeCallback(); + + }, + + get w () { + + return this._w; + + }, + + set w ( value ) { + + this._w = value; + this.onChangeCallback(); + + }, + + set: function ( x, y, z, w ) { + + this._x = x; + this._y = y; + this._z = z; + this._w = w; + + this.onChangeCallback(); + + return this; + + }, + + clone: function () { + + return new this.constructor( this._x, this._y, this._z, this._w ); + + }, + + copy: function ( quaternion ) { + + this._x = quaternion.x; + this._y = quaternion.y; + this._z = quaternion.z; + this._w = quaternion.w; + + this.onChangeCallback(); + + return this; + + }, + + setFromEuler: function ( euler, update ) { + + if ( (euler && euler.isEuler) === false ) { + + throw new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + // http://www.mathworks.com/matlabcentral/fileexchange/ + // 20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/ + // content/SpinCalc.m + + var c1 = Math.cos( euler._x / 2 ); + var c2 = Math.cos( euler._y / 2 ); + var c3 = Math.cos( euler._z / 2 ); + var s1 = Math.sin( euler._x / 2 ); + var s2 = Math.sin( euler._y / 2 ); + var s3 = Math.sin( euler._z / 2 ); + + var order = euler.order; + + if ( order === 'XYZ' ) { + + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + + } else if ( order === 'YXZ' ) { + + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + + } else if ( order === 'ZXY' ) { + + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + + } else if ( order === 'ZYX' ) { + + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + + } else if ( order === 'YZX' ) { + + this._x = s1 * c2 * c3 + c1 * s2 * s3; + this._y = c1 * s2 * c3 + s1 * c2 * s3; + this._z = c1 * c2 * s3 - s1 * s2 * c3; + this._w = c1 * c2 * c3 - s1 * s2 * s3; + + } else if ( order === 'XZY' ) { + + this._x = s1 * c2 * c3 - c1 * s2 * s3; + this._y = c1 * s2 * c3 - s1 * c2 * s3; + this._z = c1 * c2 * s3 + s1 * s2 * c3; + this._w = c1 * c2 * c3 + s1 * s2 * s3; + + } + + if ( update !== false ) this.onChangeCallback(); + + return this; + + }, + + setFromAxisAngle: function ( axis, angle ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm + + // assumes axis is normalized + + var halfAngle = angle / 2, s = Math.sin( halfAngle ); + + this._x = axis.x * s; + this._y = axis.y * s; + this._z = axis.z * s; + this._w = Math.cos( halfAngle ); + + this.onChangeCallback(); + + return this; + + }, + + setFromRotationMatrix: function ( m ) { + + // http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + var te = m.elements, + + m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ], + m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ], + m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ], + + trace = m11 + m22 + m33, + s; + + if ( trace > 0 ) { + + s = 0.5 / Math.sqrt( trace + 1.0 ); + + this._w = 0.25 / s; + this._x = ( m32 - m23 ) * s; + this._y = ( m13 - m31 ) * s; + this._z = ( m21 - m12 ) * s; + + } else if ( m11 > m22 && m11 > m33 ) { + + s = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 ); + + this._w = ( m32 - m23 ) / s; + this._x = 0.25 * s; + this._y = ( m12 + m21 ) / s; + this._z = ( m13 + m31 ) / s; + + } else if ( m22 > m33 ) { + + s = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 ); + + this._w = ( m13 - m31 ) / s; + this._x = ( m12 + m21 ) / s; + this._y = 0.25 * s; + this._z = ( m23 + m32 ) / s; + + } else { + + s = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 ); + + this._w = ( m21 - m12 ) / s; + this._x = ( m13 + m31 ) / s; + this._y = ( m23 + m32 ) / s; + this._z = 0.25 * s; + + } + + this.onChangeCallback(); + + return this; + + }, + + setFromUnitVectors: function () { + + // http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final + + // assumes direction vectors vFrom and vTo are normalized + + var v1, r; + + var EPS = 0.000001; + + return function setFromUnitVectors( vFrom, vTo ) { + + if ( v1 === undefined ) v1 = new Vector3(); + + r = vFrom.dot( vTo ) + 1; + + if ( r < EPS ) { + + r = 0; + + if ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) { + + v1.set( - vFrom.y, vFrom.x, 0 ); + + } else { + + v1.set( 0, - vFrom.z, vFrom.y ); + + } + + } else { + + v1.crossVectors( vFrom, vTo ); + + } + + this._x = v1.x; + this._y = v1.y; + this._z = v1.z; + this._w = r; + + return this.normalize(); + + }; + + }(), + + inverse: function () { + + return this.conjugate().normalize(); + + }, + + conjugate: function () { + + this._x *= - 1; + this._y *= - 1; + this._z *= - 1; + + this.onChangeCallback(); + + return this; + + }, + + dot: function ( v ) { + + return this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w; + + }, + + lengthSq: function () { + + return this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w; + + }, + + length: function () { + + return Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w ); + + }, + + normalize: function () { + + var l = this.length(); + + if ( l === 0 ) { + + this._x = 0; + this._y = 0; + this._z = 0; + this._w = 1; + + } else { + + l = 1 / l; + + this._x = this._x * l; + this._y = this._y * l; + this._z = this._z * l; + this._w = this._w * l; + + } + + this.onChangeCallback(); + + return this; + + }, + + multiply: function ( q, p ) { + + if ( p !== undefined ) { + + console.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' ); + return this.multiplyQuaternions( q, p ); + + } + + return this.multiplyQuaternions( this, q ); + + }, + + premultiply: function ( q ) { + + return this.multiplyQuaternions( q, this ); + + }, + + multiplyQuaternions: function ( a, b ) { + + // from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm + + var qax = a._x, qay = a._y, qaz = a._z, qaw = a._w; + var qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w; + + this._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby; + this._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz; + this._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx; + this._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz; + + this.onChangeCallback(); + + return this; + + }, + + slerp: function ( qb, t ) { + + if ( t === 0 ) return this; + if ( t === 1 ) return this.copy( qb ); + + var x = this._x, y = this._y, z = this._z, w = this._w; + + // http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/ + + var cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z; + + if ( cosHalfTheta < 0 ) { + + this._w = - qb._w; + this._x = - qb._x; + this._y = - qb._y; + this._z = - qb._z; + + cosHalfTheta = - cosHalfTheta; + + } else { + + this.copy( qb ); + + } + + if ( cosHalfTheta >= 1.0 ) { + + this._w = w; + this._x = x; + this._y = y; + this._z = z; + + return this; + + } + + var sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta ); + + if ( Math.abs( sinHalfTheta ) < 0.001 ) { + + this._w = 0.5 * ( w + this._w ); + this._x = 0.5 * ( x + this._x ); + this._y = 0.5 * ( y + this._y ); + this._z = 0.5 * ( z + this._z ); + + return this; + + } + + var halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta ); + var ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta, + ratioB = Math.sin( t * halfTheta ) / sinHalfTheta; + + this._w = ( w * ratioA + this._w * ratioB ); + this._x = ( x * ratioA + this._x * ratioB ); + this._y = ( y * ratioA + this._y * ratioB ); + this._z = ( z * ratioA + this._z * ratioB ); + + this.onChangeCallback(); + + return this; + + }, + + equals: function ( quaternion ) { + + return ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w ); + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + this._x = array[ offset ]; + this._y = array[ offset + 1 ]; + this._z = array[ offset + 2 ]; + this._w = array[ offset + 3 ]; + + this.onChangeCallback(); + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._w; + + return array; + + }, + + onChange: function ( callback ) { + + this.onChangeCallback = callback; + + return this; + + }, + + onChangeCallback: function () {} + + }; + + Object.assign( Quaternion, { + + slerp: function( qa, qb, qm, t ) { + + return qm.copy( qa ).slerp( qb, t ); + + }, + + slerpFlat: function( + dst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) { + + // fuzz-free, array-based Quaternion SLERP operation + + var x0 = src0[ srcOffset0 + 0 ], + y0 = src0[ srcOffset0 + 1 ], + z0 = src0[ srcOffset0 + 2 ], + w0 = src0[ srcOffset0 + 3 ], + + x1 = src1[ srcOffset1 + 0 ], + y1 = src1[ srcOffset1 + 1 ], + z1 = src1[ srcOffset1 + 2 ], + w1 = src1[ srcOffset1 + 3 ]; + + if ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) { + + var s = 1 - t, + + cos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1, + + dir = ( cos >= 0 ? 1 : - 1 ), + sqrSin = 1 - cos * cos; + + // Skip the Slerp for tiny steps to avoid numeric problems: + if ( sqrSin > Number.EPSILON ) { + + var sin = Math.sqrt( sqrSin ), + len = Math.atan2( sin, cos * dir ); + + s = Math.sin( s * len ) / sin; + t = Math.sin( t * len ) / sin; + + } + + var tDir = t * dir; + + x0 = x0 * s + x1 * tDir; + y0 = y0 * s + y1 * tDir; + z0 = z0 * s + z1 * tDir; + w0 = w0 * s + w1 * tDir; + + // Normalize in case we just did a lerp: + if ( s === 1 - t ) { + + var f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 ); + + x0 *= f; + y0 *= f; + z0 *= f; + w0 *= f; + + } + + } + + dst[ dstOffset ] = x0; + dst[ dstOffset + 1 ] = y0; + dst[ dstOffset + 2 ] = z0; + dst[ dstOffset + 3 ] = w0; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author *kile / http://kile.stravaganza.org/ + * @author philogb / http://blog.thejit.org/ + * @author mikael emtinger / http://gomo.se/ + * @author egraether / http://egraether.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function Vector3( x, y, z ) { + + this.x = x || 0; + this.y = y || 0; + this.z = z || 0; + + } + + Vector3.prototype = { + + constructor: Vector3, + + isVector3: true, + + set: function ( x, y, z ) { + + this.x = x; + this.y = y; + this.z = z; + + return this; + + }, + + setScalar: function ( scalar ) { + + this.x = scalar; + this.y = scalar; + this.z = scalar; + + return this; + + }, + + setX: function ( x ) { + + this.x = x; + + return this; + + }, + + setY: function ( y ) { + + this.y = y; + + return this; + + }, + + setZ: function ( z ) { + + this.z = z; + + return this; + + }, + + setComponent: function ( index, value ) { + + switch ( index ) { + + case 0: this.x = value; break; + case 1: this.y = value; break; + case 2: this.z = value; break; + default: throw new Error( 'index is out of range: ' + index ); + + } + + return this; + + }, + + getComponent: function ( index ) { + + switch ( index ) { + + case 0: return this.x; + case 1: return this.y; + case 2: return this.z; + default: throw new Error( 'index is out of range: ' + index ); + + } + + }, + + clone: function () { + + return new this.constructor( this.x, this.y, this.z ); + + }, + + copy: function ( v ) { + + this.x = v.x; + this.y = v.y; + this.z = v.z; + + return this; + + }, + + add: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' ); + return this.addVectors( v, w ); + + } + + this.x += v.x; + this.y += v.y; + this.z += v.z; + + return this; + + }, + + addScalar: function ( s ) { + + this.x += s; + this.y += s; + this.z += s; + + return this; + + }, + + addVectors: function ( a, b ) { + + this.x = a.x + b.x; + this.y = a.y + b.y; + this.z = a.z + b.z; + + return this; + + }, + + addScaledVector: function ( v, s ) { + + this.x += v.x * s; + this.y += v.y * s; + this.z += v.z * s; + + return this; + + }, + + sub: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' ); + return this.subVectors( v, w ); + + } + + this.x -= v.x; + this.y -= v.y; + this.z -= v.z; + + return this; + + }, + + subScalar: function ( s ) { + + this.x -= s; + this.y -= s; + this.z -= s; + + return this; + + }, + + subVectors: function ( a, b ) { + + this.x = a.x - b.x; + this.y = a.y - b.y; + this.z = a.z - b.z; + + return this; + + }, + + multiply: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' ); + return this.multiplyVectors( v, w ); + + } + + this.x *= v.x; + this.y *= v.y; + this.z *= v.z; + + return this; + + }, + + multiplyScalar: function ( scalar ) { + + if ( isFinite( scalar ) ) { + + this.x *= scalar; + this.y *= scalar; + this.z *= scalar; + + } else { + + this.x = 0; + this.y = 0; + this.z = 0; + + } + + return this; + + }, + + multiplyVectors: function ( a, b ) { + + this.x = a.x * b.x; + this.y = a.y * b.y; + this.z = a.z * b.z; + + return this; + + }, + + applyEuler: function () { + + var quaternion; + + return function applyEuler( euler ) { + + if ( (euler && euler.isEuler) === false ) { + + console.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' ); + + } + + if ( quaternion === undefined ) quaternion = new Quaternion(); + + return this.applyQuaternion( quaternion.setFromEuler( euler ) ); + + }; + + }(), + + applyAxisAngle: function () { + + var quaternion; + + return function applyAxisAngle( axis, angle ) { + + if ( quaternion === undefined ) quaternion = new Quaternion(); + + return this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) ); + + }; + + }(), + + applyMatrix3: function ( m ) { + + var x = this.x, y = this.y, z = this.z; + var e = m.elements; + + this.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z; + this.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z; + this.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z; + + return this; + + }, + + applyMatrix4: function ( m ) { + + // input: THREE.Matrix4 affine matrix + + var x = this.x, y = this.y, z = this.z; + var e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ]; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ]; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ]; + + return this; + + }, + + applyProjection: function ( m ) { + + // input: THREE.Matrix4 projection matrix + + var x = this.x, y = this.y, z = this.z; + var e = m.elements; + var d = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); // perspective divide + + this.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * d; + this.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * d; + this.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * d; + + return this; + + }, + + applyQuaternion: function ( q ) { + + var x = this.x, y = this.y, z = this.z; + var qx = q.x, qy = q.y, qz = q.z, qw = q.w; + + // calculate quat * vector + + var ix = qw * x + qy * z - qz * y; + var iy = qw * y + qz * x - qx * z; + var iz = qw * z + qx * y - qy * x; + var iw = - qx * x - qy * y - qz * z; + + // calculate result * inverse quat + + this.x = ix * qw + iw * - qx + iy * - qz - iz * - qy; + this.y = iy * qw + iw * - qy + iz * - qx - ix * - qz; + this.z = iz * qw + iw * - qz + ix * - qy - iy * - qx; + + return this; + + }, + + project: function () { + + var matrix; + + return function project( camera ) { + + if ( matrix === undefined ) matrix = new Matrix4(); + + matrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) ); + return this.applyProjection( matrix ); + + }; + + }(), + + unproject: function () { + + var matrix; + + return function unproject( camera ) { + + if ( matrix === undefined ) matrix = new Matrix4(); + + matrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) ); + return this.applyProjection( matrix ); + + }; + + }(), + + transformDirection: function ( m ) { + + // input: THREE.Matrix4 affine matrix + // vector interpreted as a direction + + var x = this.x, y = this.y, z = this.z; + var e = m.elements; + + this.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z; + this.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z; + this.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z; + + return this.normalize(); + + }, + + divide: function ( v ) { + + this.x /= v.x; + this.y /= v.y; + this.z /= v.z; + + return this; + + }, + + divideScalar: function ( scalar ) { + + return this.multiplyScalar( 1 / scalar ); + + }, + + min: function ( v ) { + + this.x = Math.min( this.x, v.x ); + this.y = Math.min( this.y, v.y ); + this.z = Math.min( this.z, v.z ); + + return this; + + }, + + max: function ( v ) { + + this.x = Math.max( this.x, v.x ); + this.y = Math.max( this.y, v.y ); + this.z = Math.max( this.z, v.z ); + + return this; + + }, + + clamp: function ( min, max ) { + + // This function assumes min < max, if this assumption isn't true it will not operate correctly + + this.x = Math.max( min.x, Math.min( max.x, this.x ) ); + this.y = Math.max( min.y, Math.min( max.y, this.y ) ); + this.z = Math.max( min.z, Math.min( max.z, this.z ) ); + + return this; + + }, + + clampScalar: function () { + + var min, max; + + return function clampScalar( minVal, maxVal ) { + + if ( min === undefined ) { + + min = new Vector3(); + max = new Vector3(); + + } + + min.set( minVal, minVal, minVal ); + max.set( maxVal, maxVal, maxVal ); + + return this.clamp( min, max ); + + }; + + }(), + + clampLength: function ( min, max ) { + + var length = this.length(); + + return this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length ); + + }, + + floor: function () { + + this.x = Math.floor( this.x ); + this.y = Math.floor( this.y ); + this.z = Math.floor( this.z ); + + return this; + + }, + + ceil: function () { + + this.x = Math.ceil( this.x ); + this.y = Math.ceil( this.y ); + this.z = Math.ceil( this.z ); + + return this; + + }, + + round: function () { + + this.x = Math.round( this.x ); + this.y = Math.round( this.y ); + this.z = Math.round( this.z ); + + return this; + + }, + + roundToZero: function () { + + this.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x ); + this.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y ); + this.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z ); + + return this; + + }, + + negate: function () { + + this.x = - this.x; + this.y = - this.y; + this.z = - this.z; + + return this; + + }, + + dot: function ( v ) { + + return this.x * v.x + this.y * v.y + this.z * v.z; + + }, + + lengthSq: function () { + + return this.x * this.x + this.y * this.y + this.z * this.z; + + }, + + length: function () { + + return Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z ); + + }, + + lengthManhattan: function () { + + return Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ); + + }, + + normalize: function () { + + return this.divideScalar( this.length() ); + + }, + + setLength: function ( length ) { + + return this.multiplyScalar( length / this.length() ); + + }, + + lerp: function ( v, alpha ) { + + this.x += ( v.x - this.x ) * alpha; + this.y += ( v.y - this.y ) * alpha; + this.z += ( v.z - this.z ) * alpha; + + return this; + + }, + + lerpVectors: function ( v1, v2, alpha ) { + + return this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 ); + + }, + + cross: function ( v, w ) { + + if ( w !== undefined ) { + + console.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' ); + return this.crossVectors( v, w ); + + } + + var x = this.x, y = this.y, z = this.z; + + this.x = y * v.z - z * v.y; + this.y = z * v.x - x * v.z; + this.z = x * v.y - y * v.x; + + return this; + + }, + + crossVectors: function ( a, b ) { + + var ax = a.x, ay = a.y, az = a.z; + var bx = b.x, by = b.y, bz = b.z; + + this.x = ay * bz - az * by; + this.y = az * bx - ax * bz; + this.z = ax * by - ay * bx; + + return this; + + }, + + projectOnVector: function ( vector ) { + + var scalar = vector.dot( this ) / vector.lengthSq(); + + return this.copy( vector ).multiplyScalar( scalar ); + + }, + + projectOnPlane: function () { + + var v1; + + return function projectOnPlane( planeNormal ) { + + if ( v1 === undefined ) v1 = new Vector3(); + + v1.copy( this ).projectOnVector( planeNormal ); + + return this.sub( v1 ); + + }; + + }(), + + reflect: function () { + + // reflect incident vector off plane orthogonal to normal + // normal is assumed to have unit length + + var v1; + + return function reflect( normal ) { + + if ( v1 === undefined ) v1 = new Vector3(); + + return this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) ); + + }; + + }(), + + angleTo: function ( v ) { + + var theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) ); + + // clamp, to handle numerical problems + + return Math.acos( _Math.clamp( theta, - 1, 1 ) ); + + }, + + distanceTo: function ( v ) { + + return Math.sqrt( this.distanceToSquared( v ) ); + + }, + + distanceToSquared: function ( v ) { + + var dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z; + + return dx * dx + dy * dy + dz * dz; + + }, + + distanceToManhattan: function ( v ) { + + return Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z ); + + }, + + setFromSpherical: function( s ) { + + var sinPhiRadius = Math.sin( s.phi ) * s.radius; + + this.x = sinPhiRadius * Math.sin( s.theta ); + this.y = Math.cos( s.phi ) * s.radius; + this.z = sinPhiRadius * Math.cos( s.theta ); + + return this; + + }, + + setFromMatrixPosition: function ( m ) { + + return this.setFromMatrixColumn( m, 3 ); + + }, + + setFromMatrixScale: function ( m ) { + + var sx = this.setFromMatrixColumn( m, 0 ).length(); + var sy = this.setFromMatrixColumn( m, 1 ).length(); + var sz = this.setFromMatrixColumn( m, 2 ).length(); + + this.x = sx; + this.y = sy; + this.z = sz; + + return this; + + }, + + setFromMatrixColumn: function ( m, index ) { + + if ( typeof m === 'number' ) { + + console.warn( 'THREE.Vector3: setFromMatrixColumn now expects ( matrix, index ).' ); + var temp = m; + m = index; + index = temp; + + } + + return this.fromArray( m.elements, index * 4 ); + + }, + + equals: function ( v ) { + + return ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) ); + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + this.x = array[ offset ]; + this.y = array[ offset + 1 ]; + this.z = array[ offset + 2 ]; + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this.x; + array[ offset + 1 ] = this.y; + array[ offset + 2 ] = this.z; + + return array; + + }, + + fromAttribute: function ( attribute, index, offset ) { + + if ( offset === undefined ) offset = 0; + + index = index * attribute.itemSize + offset; + + this.x = attribute.array[ index ]; + this.y = attribute.array[ index + 1 ]; + this.z = attribute.array[ index + 2 ]; + + return this; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author supereggbert / http://www.paulbrunt.co.uk/ + * @author philogb / http://blog.thejit.org/ + * @author jordi_ros / http://plattsoft.com + * @author D1plo1d / http://github.com/D1plo1d + * @author alteredq / http://alteredqualia.com/ + * @author mikael emtinger / http://gomo.se/ + * @author timknip / http://www.floorplanner.com/ + * @author bhouston / http://clara.io + * @author WestLangley / http://github.com/WestLangley + */ + + function Matrix4() { + + this.elements = new Float32Array( [ + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ] ); + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + Matrix4.prototype = { + + constructor: Matrix4, + + isMatrix4: true, + + set: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) { + + var te = this.elements; + + te[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14; + te[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24; + te[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34; + te[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44; + + return this; + + }, + + identity: function () { + + this.set( + + 1, 0, 0, 0, + 0, 1, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + clone: function () { + + return new Matrix4().fromArray( this.elements ); + + }, + + copy: function ( m ) { + + this.elements.set( m.elements ); + + return this; + + }, + + copyPosition: function ( m ) { + + var te = this.elements; + var me = m.elements; + + te[ 12 ] = me[ 12 ]; + te[ 13 ] = me[ 13 ]; + te[ 14 ] = me[ 14 ]; + + return this; + + }, + + extractBasis: function ( xAxis, yAxis, zAxis ) { + + xAxis.setFromMatrixColumn( this, 0 ); + yAxis.setFromMatrixColumn( this, 1 ); + zAxis.setFromMatrixColumn( this, 2 ); + + return this; + + }, + + makeBasis: function ( xAxis, yAxis, zAxis ) { + + this.set( + xAxis.x, yAxis.x, zAxis.x, 0, + xAxis.y, yAxis.y, zAxis.y, 0, + xAxis.z, yAxis.z, zAxis.z, 0, + 0, 0, 0, 1 + ); + + return this; + + }, + + extractRotation: function () { + + var v1; + + return function extractRotation( m ) { + + if ( v1 === undefined ) v1 = new Vector3(); + + var te = this.elements; + var me = m.elements; + + var scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length(); + var scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length(); + var scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length(); + + te[ 0 ] = me[ 0 ] * scaleX; + te[ 1 ] = me[ 1 ] * scaleX; + te[ 2 ] = me[ 2 ] * scaleX; + + te[ 4 ] = me[ 4 ] * scaleY; + te[ 5 ] = me[ 5 ] * scaleY; + te[ 6 ] = me[ 6 ] * scaleY; + + te[ 8 ] = me[ 8 ] * scaleZ; + te[ 9 ] = me[ 9 ] * scaleZ; + te[ 10 ] = me[ 10 ] * scaleZ; + + return this; + + }; + + }(), + + makeRotationFromEuler: function ( euler ) { + + if ( (euler && euler.isEuler) === false ) { + + console.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' ); + + } + + var te = this.elements; + + var x = euler.x, y = euler.y, z = euler.z; + var a = Math.cos( x ), b = Math.sin( x ); + var c = Math.cos( y ), d = Math.sin( y ); + var e = Math.cos( z ), f = Math.sin( z ); + + if ( euler.order === 'XYZ' ) { + + var ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = - c * f; + te[ 8 ] = d; + + te[ 1 ] = af + be * d; + te[ 5 ] = ae - bf * d; + te[ 9 ] = - b * c; + + te[ 2 ] = bf - ae * d; + te[ 6 ] = be + af * d; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YXZ' ) { + + var ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce + df * b; + te[ 4 ] = de * b - cf; + te[ 8 ] = a * d; + + te[ 1 ] = a * f; + te[ 5 ] = a * e; + te[ 9 ] = - b; + + te[ 2 ] = cf * b - de; + te[ 6 ] = df + ce * b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZXY' ) { + + var ce = c * e, cf = c * f, de = d * e, df = d * f; + + te[ 0 ] = ce - df * b; + te[ 4 ] = - a * f; + te[ 8 ] = de + cf * b; + + te[ 1 ] = cf + de * b; + te[ 5 ] = a * e; + te[ 9 ] = df - ce * b; + + te[ 2 ] = - a * d; + te[ 6 ] = b; + te[ 10 ] = a * c; + + } else if ( euler.order === 'ZYX' ) { + + var ae = a * e, af = a * f, be = b * e, bf = b * f; + + te[ 0 ] = c * e; + te[ 4 ] = be * d - af; + te[ 8 ] = ae * d + bf; + + te[ 1 ] = c * f; + te[ 5 ] = bf * d + ae; + te[ 9 ] = af * d - be; + + te[ 2 ] = - d; + te[ 6 ] = b * c; + te[ 10 ] = a * c; + + } else if ( euler.order === 'YZX' ) { + + var ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = bd - ac * f; + te[ 8 ] = bc * f + ad; + + te[ 1 ] = f; + te[ 5 ] = a * e; + te[ 9 ] = - b * e; + + te[ 2 ] = - d * e; + te[ 6 ] = ad * f + bc; + te[ 10 ] = ac - bd * f; + + } else if ( euler.order === 'XZY' ) { + + var ac = a * c, ad = a * d, bc = b * c, bd = b * d; + + te[ 0 ] = c * e; + te[ 4 ] = - f; + te[ 8 ] = d * e; + + te[ 1 ] = ac * f + bd; + te[ 5 ] = a * e; + te[ 9 ] = ad * f - bc; + + te[ 2 ] = bc * f - ad; + te[ 6 ] = b * e; + te[ 10 ] = bd * f + ac; + + } + + // last column + te[ 3 ] = 0; + te[ 7 ] = 0; + te[ 11 ] = 0; + + // bottom row + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + }, + + makeRotationFromQuaternion: function ( q ) { + + var te = this.elements; + + var x = q.x, y = q.y, z = q.z, w = q.w; + var x2 = x + x, y2 = y + y, z2 = z + z; + var xx = x * x2, xy = x * y2, xz = x * z2; + var yy = y * y2, yz = y * z2, zz = z * z2; + var wx = w * x2, wy = w * y2, wz = w * z2; + + te[ 0 ] = 1 - ( yy + zz ); + te[ 4 ] = xy - wz; + te[ 8 ] = xz + wy; + + te[ 1 ] = xy + wz; + te[ 5 ] = 1 - ( xx + zz ); + te[ 9 ] = yz - wx; + + te[ 2 ] = xz - wy; + te[ 6 ] = yz + wx; + te[ 10 ] = 1 - ( xx + yy ); + + // last column + te[ 3 ] = 0; + te[ 7 ] = 0; + te[ 11 ] = 0; + + // bottom row + te[ 12 ] = 0; + te[ 13 ] = 0; + te[ 14 ] = 0; + te[ 15 ] = 1; + + return this; + + }, + + lookAt: function () { + + var x, y, z; + + return function lookAt( eye, target, up ) { + + if ( x === undefined ) { + + x = new Vector3(); + y = new Vector3(); + z = new Vector3(); + + } + + var te = this.elements; + + z.subVectors( eye, target ).normalize(); + + if ( z.lengthSq() === 0 ) { + + z.z = 1; + + } + + x.crossVectors( up, z ).normalize(); + + if ( x.lengthSq() === 0 ) { + + z.z += 0.0001; + x.crossVectors( up, z ).normalize(); + + } + + y.crossVectors( z, x ); + + + te[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x; + te[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y; + te[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z; + + return this; + + }; + + }(), + + multiply: function ( m, n ) { + + if ( n !== undefined ) { + + console.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' ); + return this.multiplyMatrices( m, n ); + + } + + return this.multiplyMatrices( this, m ); + + }, + + premultiply: function ( m ) { + + return this.multiplyMatrices( m, this ); + + }, + + multiplyMatrices: function ( a, b ) { + + var ae = a.elements; + var be = b.elements; + var te = this.elements; + + var a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ]; + var a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ]; + var a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ]; + var a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ]; + + var b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ]; + var b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ]; + var b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ]; + var b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ]; + + te[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41; + te[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42; + te[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43; + te[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44; + + te[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41; + te[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42; + te[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43; + te[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44; + + te[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41; + te[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42; + te[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43; + te[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44; + + te[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41; + te[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42; + te[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43; + te[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44; + + return this; + + }, + + multiplyToArray: function ( a, b, r ) { + + var te = this.elements; + + this.multiplyMatrices( a, b ); + + r[ 0 ] = te[ 0 ]; r[ 1 ] = te[ 1 ]; r[ 2 ] = te[ 2 ]; r[ 3 ] = te[ 3 ]; + r[ 4 ] = te[ 4 ]; r[ 5 ] = te[ 5 ]; r[ 6 ] = te[ 6 ]; r[ 7 ] = te[ 7 ]; + r[ 8 ] = te[ 8 ]; r[ 9 ] = te[ 9 ]; r[ 10 ] = te[ 10 ]; r[ 11 ] = te[ 11 ]; + r[ 12 ] = te[ 12 ]; r[ 13 ] = te[ 13 ]; r[ 14 ] = te[ 14 ]; r[ 15 ] = te[ 15 ]; + + return this; + + }, + + multiplyScalar: function ( s ) { + + var te = this.elements; + + te[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s; + te[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s; + te[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s; + te[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s; + + return this; + + }, + + applyToVector3Array: function () { + + var v1; + + return function applyToVector3Array( array, offset, length ) { + + if ( v1 === undefined ) v1 = new Vector3(); + if ( offset === undefined ) offset = 0; + if ( length === undefined ) length = array.length; + + for ( var i = 0, j = offset; i < length; i += 3, j += 3 ) { + + v1.fromArray( array, j ); + v1.applyMatrix4( this ); + v1.toArray( array, j ); + + } + + return array; + + }; + + }(), + + applyToBuffer: function () { + + var v1; + + return function applyToBuffer( buffer, offset, length ) { + + if ( v1 === undefined ) v1 = new Vector3(); + if ( offset === undefined ) offset = 0; + if ( length === undefined ) length = buffer.length / buffer.itemSize; + + for ( var i = 0, j = offset; i < length; i ++, j ++ ) { + + v1.x = buffer.getX( j ); + v1.y = buffer.getY( j ); + v1.z = buffer.getZ( j ); + + v1.applyMatrix4( this ); + + buffer.setXYZ( j, v1.x, v1.y, v1.z ); + + } + + return buffer; + + }; + + }(), + + determinant: function () { + + var te = this.elements; + + var n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ]; + var n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ]; + var n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ]; + var n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ]; + + //TODO: make this more efficient + //( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm ) + + return ( + n41 * ( + + n14 * n23 * n32 + - n13 * n24 * n32 + - n14 * n22 * n33 + + n12 * n24 * n33 + + n13 * n22 * n34 + - n12 * n23 * n34 + ) + + n42 * ( + + n11 * n23 * n34 + - n11 * n24 * n33 + + n14 * n21 * n33 + - n13 * n21 * n34 + + n13 * n24 * n31 + - n14 * n23 * n31 + ) + + n43 * ( + + n11 * n24 * n32 + - n11 * n22 * n34 + - n14 * n21 * n32 + + n12 * n21 * n34 + + n14 * n22 * n31 + - n12 * n24 * n31 + ) + + n44 * ( + - n13 * n22 * n31 + - n11 * n23 * n32 + + n11 * n22 * n33 + + n13 * n21 * n32 + - n12 * n21 * n33 + + n12 * n23 * n31 + ) + + ); + + }, + + transpose: function () { + + var te = this.elements; + var tmp; + + tmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp; + tmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp; + tmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp; + + tmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp; + tmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp; + tmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp; + + return this; + + }, + + flattenToArrayOffset: function ( array, offset ) { + + console.warn( "THREE.Matrix3: .flattenToArrayOffset is deprecated " + + "- just use .toArray instead." ); + + return this.toArray( array, offset ); + + }, + + getPosition: function () { + + var v1; + + return function getPosition() { + + if ( v1 === undefined ) v1 = new Vector3(); + console.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' ); + + return v1.setFromMatrixColumn( this, 3 ); + + }; + + }(), + + setPosition: function ( v ) { + + var te = this.elements; + + te[ 12 ] = v.x; + te[ 13 ] = v.y; + te[ 14 ] = v.z; + + return this; + + }, + + getInverse: function ( m, throwOnDegenerate ) { + + // based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm + var te = this.elements, + me = m.elements, + + n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ], + n12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ], + n13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ], + n14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ], + + t11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44, + t12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44, + t13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44, + t14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34; + + var det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14; + + if ( det === 0 ) { + + var msg = "THREE.Matrix4.getInverse(): can't invert matrix, determinant is 0"; + + if ( throwOnDegenerate === true ) { + + throw new Error( msg ); + + } else { + + console.warn( msg ); + + } + + return this.identity(); + + } + + var detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv; + te[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv; + te[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv; + + te[ 4 ] = t12 * detInv; + te[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv; + te[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv; + te[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv; + + te[ 8 ] = t13 * detInv; + te[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv; + te[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv; + te[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv; + + te[ 12 ] = t14 * detInv; + te[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv; + te[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv; + te[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv; + + return this; + + }, + + scale: function ( v ) { + + var te = this.elements; + var x = v.x, y = v.y, z = v.z; + + te[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z; + te[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z; + te[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z; + te[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z; + + return this; + + }, + + getMaxScaleOnAxis: function () { + + var te = this.elements; + + var scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ]; + var scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ]; + var scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ]; + + return Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) ); + + }, + + makeTranslation: function ( x, y, z ) { + + this.set( + + 1, 0, 0, x, + 0, 1, 0, y, + 0, 0, 1, z, + 0, 0, 0, 1 + + ); + + return this; + + }, + + makeRotationX: function ( theta ) { + + var c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + 1, 0, 0, 0, + 0, c, - s, 0, + 0, s, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + makeRotationY: function ( theta ) { + + var c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, 0, s, 0, + 0, 1, 0, 0, + - s, 0, c, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + makeRotationZ: function ( theta ) { + + var c = Math.cos( theta ), s = Math.sin( theta ); + + this.set( + + c, - s, 0, 0, + s, c, 0, 0, + 0, 0, 1, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + makeRotationAxis: function ( axis, angle ) { + + // Based on http://www.gamedev.net/reference/articles/article1199.asp + + var c = Math.cos( angle ); + var s = Math.sin( angle ); + var t = 1 - c; + var x = axis.x, y = axis.y, z = axis.z; + var tx = t * x, ty = t * y; + + this.set( + + tx * x + c, tx * y - s * z, tx * z + s * y, 0, + tx * y + s * z, ty * y + c, ty * z - s * x, 0, + tx * z - s * y, ty * z + s * x, t * z * z + c, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + makeScale: function ( x, y, z ) { + + this.set( + + x, 0, 0, 0, + 0, y, 0, 0, + 0, 0, z, 0, + 0, 0, 0, 1 + + ); + + return this; + + }, + + compose: function ( position, quaternion, scale ) { + + this.makeRotationFromQuaternion( quaternion ); + this.scale( scale ); + this.setPosition( position ); + + return this; + + }, + + decompose: function () { + + var vector, matrix; + + return function decompose( position, quaternion, scale ) { + + if ( vector === undefined ) { + + vector = new Vector3(); + matrix = new Matrix4(); + + } + + var te = this.elements; + + var sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length(); + var sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length(); + var sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length(); + + // if determine is negative, we need to invert one scale + var det = this.determinant(); + if ( det < 0 ) { + + sx = - sx; + + } + + position.x = te[ 12 ]; + position.y = te[ 13 ]; + position.z = te[ 14 ]; + + // scale the rotation part + + matrix.elements.set( this.elements ); // at this point matrix is incomplete so we can't use .copy() + + var invSX = 1 / sx; + var invSY = 1 / sy; + var invSZ = 1 / sz; + + matrix.elements[ 0 ] *= invSX; + matrix.elements[ 1 ] *= invSX; + matrix.elements[ 2 ] *= invSX; + + matrix.elements[ 4 ] *= invSY; + matrix.elements[ 5 ] *= invSY; + matrix.elements[ 6 ] *= invSY; + + matrix.elements[ 8 ] *= invSZ; + matrix.elements[ 9 ] *= invSZ; + matrix.elements[ 10 ] *= invSZ; + + quaternion.setFromRotationMatrix( matrix ); + + scale.x = sx; + scale.y = sy; + scale.z = sz; + + return this; + + }; + + }(), + + makeFrustum: function ( left, right, bottom, top, near, far ) { + + var te = this.elements; + var x = 2 * near / ( right - left ); + var y = 2 * near / ( top - bottom ); + + var a = ( right + left ) / ( right - left ); + var b = ( top + bottom ) / ( top - bottom ); + var c = - ( far + near ) / ( far - near ); + var d = - 2 * far * near / ( far - near ); + + te[ 0 ] = x; te[ 4 ] = 0; te[ 8 ] = a; te[ 12 ] = 0; + te[ 1 ] = 0; te[ 5 ] = y; te[ 9 ] = b; te[ 13 ] = 0; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = c; te[ 14 ] = d; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = - 1; te[ 15 ] = 0; + + return this; + + }, + + makePerspective: function ( fov, aspect, near, far ) { + + var ymax = near * Math.tan( _Math.DEG2RAD * fov * 0.5 ); + var ymin = - ymax; + var xmin = ymin * aspect; + var xmax = ymax * aspect; + + return this.makeFrustum( xmin, xmax, ymin, ymax, near, far ); + + }, + + makeOrthographic: function ( left, right, top, bottom, near, far ) { + + var te = this.elements; + var w = 1.0 / ( right - left ); + var h = 1.0 / ( top - bottom ); + var p = 1.0 / ( far - near ); + + var x = ( right + left ) * w; + var y = ( top + bottom ) * h; + var z = ( far + near ) * p; + + te[ 0 ] = 2 * w; te[ 4 ] = 0; te[ 8 ] = 0; te[ 12 ] = - x; + te[ 1 ] = 0; te[ 5 ] = 2 * h; te[ 9 ] = 0; te[ 13 ] = - y; + te[ 2 ] = 0; te[ 6 ] = 0; te[ 10 ] = - 2 * p; te[ 14 ] = - z; + te[ 3 ] = 0; te[ 7 ] = 0; te[ 11 ] = 0; te[ 15 ] = 1; + + return this; + + }, + + equals: function ( matrix ) { + + var te = this.elements; + var me = matrix.elements; + + for ( var i = 0; i < 16; i ++ ) { + + if ( te[ i ] !== me[ i ] ) return false; + + } + + return true; + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + for( var i = 0; i < 16; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + var te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + array[ offset + 3 ] = te[ 3 ]; + + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + + array[ offset + 8 ] = te[ 8 ]; + array[ offset + 9 ] = te[ 9 ]; + array[ offset + 10 ] = te[ 10 ]; + array[ offset + 11 ] = te[ 11 ]; + + array[ offset + 12 ] = te[ 12 ]; + array[ offset + 13 ] = te[ 13 ]; + array[ offset + 14 ] = te[ 14 ]; + array[ offset + 15 ] = te[ 15 ]; + + return array; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) { + + images = images !== undefined ? images : []; + mapping = mapping !== undefined ? mapping : CubeReflectionMapping; + + Texture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.flipY = false; + + } + + CubeTexture.prototype = Object.create( Texture.prototype ); + CubeTexture.prototype.constructor = CubeTexture; + + CubeTexture.prototype.isCubeTexture = true; + + Object.defineProperty( CubeTexture.prototype, 'images', { + + get: function () { + + return this.image; + + }, + + set: function ( value ) { + + this.image = value; + + } + + } ); + + /** + * @author tschw + * + * Uniforms of a program. + * Those form a tree structure with a special top-level container for the root, + * which you get by calling 'new WebGLUniforms( gl, program, renderer )'. + * + * + * Properties of inner nodes including the top-level container: + * + * .seq - array of nested uniforms + * .map - nested uniforms by name + * + * + * Methods of all nodes except the top-level container: + * + * .setValue( gl, value, [renderer] ) + * + * uploads a uniform value(s) + * the 'renderer' parameter is needed for sampler uniforms + * + * + * Static methods of the top-level container (renderer factorizations): + * + * .upload( gl, seq, values, renderer ) + * + * sets uniforms in 'seq' to 'values[id].value' + * + * .seqWithValue( seq, values ) : filteredSeq + * + * filters 'seq' entries with corresponding entry in values + * + * + * Methods of the top-level container (renderer factorizations): + * + * .setValue( gl, name, value ) + * + * sets uniform with name 'name' to 'value' + * + * .set( gl, obj, prop ) + * + * sets uniform from object and property with same name than uniform + * + * .setOptional( gl, obj, prop ) + * + * like .set for an optional property of the object + * + */ + + var emptyTexture = new Texture(); + var emptyCubeTexture = new CubeTexture(); + + // --- Base for inner nodes (including the root) --- + + function UniformContainer() { + + this.seq = []; + this.map = {}; + + } + + // --- Utilities --- + + // Array Caches (provide typed arrays for temporary by size) + + var arrayCacheF32 = []; + var arrayCacheI32 = []; + + // Flattening for arrays of vectors and matrices + + function flatten( array, nBlocks, blockSize ) { + + var firstElem = array[ 0 ]; + + if ( firstElem <= 0 || firstElem > 0 ) return array; + // unoptimized: ! isNaN( firstElem ) + // see http://jacksondunstan.com/articles/983 + + var n = nBlocks * blockSize, + r = arrayCacheF32[ n ]; + + if ( r === undefined ) { + + r = new Float32Array( n ); + arrayCacheF32[ n ] = r; + + } + + if ( nBlocks !== 0 ) { + + firstElem.toArray( r, 0 ); + + for ( var i = 1, offset = 0; i !== nBlocks; ++ i ) { + + offset += blockSize; + array[ i ].toArray( r, offset ); + + } + + } + + return r; + + } + + // Texture unit allocation + + function allocTexUnits( renderer, n ) { + + var r = arrayCacheI32[ n ]; + + if ( r === undefined ) { + + r = new Int32Array( n ); + arrayCacheI32[ n ] = r; + + } + + for ( var i = 0; i !== n; ++ i ) + r[ i ] = renderer.allocTextureUnit(); + + return r; + + } + + // --- Setters --- + + // Note: Defining these methods externally, because they come in a bunch + // and this way their names minify. + + // Single scalar + + function setValue1f( gl, v ) { gl.uniform1f( this.addr, v ); } + function setValue1i( gl, v ) { gl.uniform1i( this.addr, v ); } + + // Single float vector (from flat array or THREE.VectorN) + + function setValue2fv( gl, v ) { + + if ( v.x === undefined ) gl.uniform2fv( this.addr, v ); + else gl.uniform2f( this.addr, v.x, v.y ); + + } + + function setValue3fv( gl, v ) { + + if ( v.x !== undefined ) + gl.uniform3f( this.addr, v.x, v.y, v.z ); + else if ( v.r !== undefined ) + gl.uniform3f( this.addr, v.r, v.g, v.b ); + else + gl.uniform3fv( this.addr, v ); + + } + + function setValue4fv( gl, v ) { + + if ( v.x === undefined ) gl.uniform4fv( this.addr, v ); + else gl.uniform4f( this.addr, v.x, v.y, v.z, v.w ); + + } + + // Single matrix (from flat array or MatrixN) + + function setValue2fm( gl, v ) { + + gl.uniformMatrix2fv( this.addr, false, v.elements || v ); + + } + + function setValue3fm( gl, v ) { + + gl.uniformMatrix3fv( this.addr, false, v.elements || v ); + + } + + function setValue4fm( gl, v ) { + + gl.uniformMatrix4fv( this.addr, false, v.elements || v ); + + } + + // Single texture (2D / Cube) + + function setValueT1( gl, v, renderer ) { + + var unit = renderer.allocTextureUnit(); + gl.uniform1i( this.addr, unit ); + renderer.setTexture2D( v || emptyTexture, unit ); + + } + + function setValueT6( gl, v, renderer ) { + + var unit = renderer.allocTextureUnit(); + gl.uniform1i( this.addr, unit ); + renderer.setTextureCube( v || emptyCubeTexture, unit ); + + } + + // Integer / Boolean vectors or arrays thereof (always flat arrays) + + function setValue2iv( gl, v ) { gl.uniform2iv( this.addr, v ); } + function setValue3iv( gl, v ) { gl.uniform3iv( this.addr, v ); } + function setValue4iv( gl, v ) { gl.uniform4iv( this.addr, v ); } + + // Helper to pick the right setter for the singular case + + function getSingularSetter( type ) { + + switch ( type ) { + + case 0x1406: return setValue1f; // FLOAT + case 0x8b50: return setValue2fv; // _VEC2 + case 0x8b51: return setValue3fv; // _VEC3 + case 0x8b52: return setValue4fv; // _VEC4 + + case 0x8b5a: return setValue2fm; // _MAT2 + case 0x8b5b: return setValue3fm; // _MAT3 + case 0x8b5c: return setValue4fm; // _MAT4 + + case 0x8b5e: return setValueT1; // SAMPLER_2D + case 0x8b60: return setValueT6; // SAMPLER_CUBE + + case 0x1404: case 0x8b56: return setValue1i; // INT, BOOL + case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2 + case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3 + case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4 + + } + + } + + // Array of scalars + + function setValue1fv( gl, v ) { gl.uniform1fv( this.addr, v ); } + function setValue1iv( gl, v ) { gl.uniform1iv( this.addr, v ); } + + // Array of vectors (flat or from THREE classes) + + function setValueV2a( gl, v ) { + + gl.uniform2fv( this.addr, flatten( v, this.size, 2 ) ); + + } + + function setValueV3a( gl, v ) { + + gl.uniform3fv( this.addr, flatten( v, this.size, 3 ) ); + + } + + function setValueV4a( gl, v ) { + + gl.uniform4fv( this.addr, flatten( v, this.size, 4 ) ); + + } + + // Array of matrices (flat or from THREE clases) + + function setValueM2a( gl, v ) { + + gl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) ); + + } + + function setValueM3a( gl, v ) { + + gl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) ); + + } + + function setValueM4a( gl, v ) { + + gl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) ); + + } + + // Array of textures (2D / Cube) + + function setValueT1a( gl, v, renderer ) { + + var n = v.length, + units = allocTexUnits( renderer, n ); + + gl.uniform1iv( this.addr, units ); + + for ( var i = 0; i !== n; ++ i ) { + + renderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] ); + + } + + } + + function setValueT6a( gl, v, renderer ) { + + var n = v.length, + units = allocTexUnits( renderer, n ); + + gl.uniform1iv( this.addr, units ); + + for ( var i = 0; i !== n; ++ i ) { + + renderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] ); + + } + + } + + // Helper to pick the right setter for a pure (bottom-level) array + + function getPureArraySetter( type ) { + + switch ( type ) { + + case 0x1406: return setValue1fv; // FLOAT + case 0x8b50: return setValueV2a; // _VEC2 + case 0x8b51: return setValueV3a; // _VEC3 + case 0x8b52: return setValueV4a; // _VEC4 + + case 0x8b5a: return setValueM2a; // _MAT2 + case 0x8b5b: return setValueM3a; // _MAT3 + case 0x8b5c: return setValueM4a; // _MAT4 + + case 0x8b5e: return setValueT1a; // SAMPLER_2D + case 0x8b60: return setValueT6a; // SAMPLER_CUBE + + case 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL + case 0x8b53: case 0x8b57: return setValue2iv; // _VEC2 + case 0x8b54: case 0x8b58: return setValue3iv; // _VEC3 + case 0x8b55: case 0x8b59: return setValue4iv; // _VEC4 + + } + + } + + // --- Uniform Classes --- + + function SingleUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.setValue = getSingularSetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + + } + + function PureArrayUniform( id, activeInfo, addr ) { + + this.id = id; + this.addr = addr; + this.size = activeInfo.size; + this.setValue = getPureArraySetter( activeInfo.type ); + + // this.path = activeInfo.name; // DEBUG + + } + + function StructuredUniform( id ) { + + this.id = id; + + UniformContainer.call( this ); // mix-in + + } + + StructuredUniform.prototype.setValue = function( gl, value ) { + + // Note: Don't need an extra 'renderer' parameter, since samplers + // are not allowed in structured uniforms. + + var seq = this.seq; + + for ( var i = 0, n = seq.length; i !== n; ++ i ) { + + var u = seq[ i ]; + u.setValue( gl, value[ u.id ] ); + + } + + }; + + // --- Top-level --- + + // Parser - builds up the property tree from the path strings + + var RePathPart = /([\w\d_]+)(\])?(\[|\.)?/g; + + // extracts + // - the identifier (member name or array index) + // - followed by an optional right bracket (found when array index) + // - followed by an optional left bracket or dot (type of subscript) + // + // Note: These portions can be read in a non-overlapping fashion and + // allow straightforward parsing of the hierarchy that WebGL encodes + // in the uniform names. + + function addUniform( container, uniformObject ) { + + container.seq.push( uniformObject ); + container.map[ uniformObject.id ] = uniformObject; + + } + + function parseUniform( activeInfo, addr, container ) { + + var path = activeInfo.name, + pathLength = path.length; + + // reset RegExp object, because of the early exit of a previous run + RePathPart.lastIndex = 0; + + for (; ;) { + + var match = RePathPart.exec( path ), + matchEnd = RePathPart.lastIndex, + + id = match[ 1 ], + idIsIndex = match[ 2 ] === ']', + subscript = match[ 3 ]; + + if ( idIsIndex ) id = id | 0; // convert to integer + + if ( subscript === undefined || + subscript === '[' && matchEnd + 2 === pathLength ) { + // bare name or "pure" bottom-level array "[0]" suffix + + addUniform( container, subscript === undefined ? + new SingleUniform( id, activeInfo, addr ) : + new PureArrayUniform( id, activeInfo, addr ) ); + + break; + + } else { + // step into inner node / create it in case it doesn't exist + + var map = container.map, + next = map[ id ]; + + if ( next === undefined ) { + + next = new StructuredUniform( id ); + addUniform( container, next ); + + } + + container = next; + + } + + } + + } + + // Root Container + + function WebGLUniforms( gl, program, renderer ) { + + UniformContainer.call( this ); + + this.renderer = renderer; + + var n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS ); + + for ( var i = 0; i !== n; ++ i ) { + + var info = gl.getActiveUniform( program, i ), + path = info.name, + addr = gl.getUniformLocation( program, path ); + + parseUniform( info, addr, this ); + + } + + } + + WebGLUniforms.prototype.setValue = function( gl, name, value ) { + + var u = this.map[ name ]; + + if ( u !== undefined ) u.setValue( gl, value, this.renderer ); + + }; + + WebGLUniforms.prototype.set = function( gl, object, name ) { + + var u = this.map[ name ]; + + if ( u !== undefined ) u.setValue( gl, object[ name ], this.renderer ); + + }; + + WebGLUniforms.prototype.setOptional = function( gl, object, name ) { + + var v = object[ name ]; + + if ( v !== undefined ) this.setValue( gl, name, v ); + + }; + + + // Static interface + + WebGLUniforms.upload = function( gl, seq, values, renderer ) { + + for ( var i = 0, n = seq.length; i !== n; ++ i ) { + + var u = seq[ i ], + v = values[ u.id ]; + + if ( v.needsUpdate !== false ) { + // note: always updating when .needsUpdate is undefined + + u.setValue( gl, v.value, renderer ); + + } + + } + + }; + + WebGLUniforms.seqWithValue = function( seq, values ) { + + var r = []; + + for ( var i = 0, n = seq.length; i !== n; ++ i ) { + + var u = seq[ i ]; + if ( u.id in values ) r.push( u ); + + } + + return r; + + }; + + /** + * Uniform Utilities + */ + + var UniformsUtils = { + + merge: function ( uniforms ) { + + var merged = {}; + + for ( var u = 0; u < uniforms.length; u ++ ) { + + var tmp = this.clone( uniforms[ u ] ); + + for ( var p in tmp ) { + + merged[ p ] = tmp[ p ]; + + } + + } + + return merged; + + }, + + clone: function ( uniforms_src ) { + + var uniforms_dst = {}; + + for ( var u in uniforms_src ) { + + uniforms_dst[ u ] = {}; + + for ( var p in uniforms_src[ u ] ) { + + var parameter_src = uniforms_src[ u ][ p ]; + + if ( parameter_src && ( parameter_src.isColor || + parameter_src.isMatrix3 || parameter_src.isMatrix4 || + parameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 || + parameter_src.isTexture ) ) { + + uniforms_dst[ u ][ p ] = parameter_src.clone(); + + } else if ( Array.isArray( parameter_src ) ) { + + uniforms_dst[ u ][ p ] = parameter_src.slice(); + + } else { + + uniforms_dst[ u ][ p ] = parameter_src; + + } + + } + + } + + return uniforms_dst; + + } + + }; + + var alphamap_fragment = "#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif\n"; + + var alphamap_pars_fragment = "#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif\n"; + + var alphatest_fragment = "#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif\n"; + + var aomap_fragment = "#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif\n"; + + var aomap_pars_fragment = "#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif"; + + var begin_vertex = "\nvec3 transformed = vec3( position );\n"; + + var beginnormal_vertex = "\nvec3 objectNormal = vec3( normal );\n"; + + var bsdfs = "bool testLightInRange( const in float lightDistance, const in float cutoffDistance ) {\n\treturn any( bvec2( cutoffDistance == 0.0, lightDistance < cutoffDistance ) );\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n\t\tif( decayExponent > 0.0 ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\t\t\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\t\t\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t\t\treturn distanceFalloff * maxDistanceCutoffFactor;\n#else\n\t\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n#endif\n\t\t}\n\t\treturn 1.0;\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\n\treturn specularColor * AB.x + AB.y;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n"; + + var bumpmap_pars_fragment = "#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = dFdx( surf_pos );\n\t\tvec3 vSigmaY = dFdy( surf_pos );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif\n"; + + var clipping_planes_fragment = "#if NUM_CLIPPING_PLANES > 0\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\n\t\tvec4 plane = clippingPlanes[ i ];\n\t\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t\t\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\n\t\t\tvec4 plane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\tif ( clipped ) discard;\n\t\n\t#endif\n#endif\n"; + + var clipping_planes_pars_fragment = "#if NUM_CLIPPING_PLANES > 0\n\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\n\t\tvarying vec3 vViewPosition;\n\t#endif\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif\n"; + + var clipping_planes_pars_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvarying vec3 vViewPosition;\n#endif\n"; + + var clipping_planes_vertex = "#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n"; + + var color_fragment = "#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif"; + + var color_pars_fragment = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif\n"; + + var color_pars_vertex = "#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif"; + + var color_vertex = "#ifdef USE_COLOR\n\tvColor.xyz = color.xyz;\n#endif"; + + var common = "#define PI 3.14159265359\n#define PI2 6.28318530718\n#define RECIPROCAL_PI 0.31830988618\n#define RECIPROCAL_PI2 0.15915494\n#define LOG2 1.442695\n#define EPSILON 1e-6\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\n"; + + var cube_uv_reflection_fragment = "#ifdef ENVMAP_TYPE_CUBE_UV\n#define cubeUV_textureSize (1024.0)\nint getFaceFromDirection(vec3 direction) {\n\tvec3 absDirection = abs(direction);\n\tint face = -1;\n\tif( absDirection.x > absDirection.z ) {\n\t\tif(absDirection.x > absDirection.y )\n\t\t\tface = direction.x > 0.0 ? 0 : 3;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\telse {\n\t\tif(absDirection.z > absDirection.y )\n\t\t\tface = direction.z > 0.0 ? 2 : 5;\n\t\telse\n\t\t\tface = direction.y > 0.0 ? 1 : 4;\n\t}\n\treturn face;\n}\n#define cubeUV_maxLods1 (log2(cubeUV_textureSize*0.25) - 1.0)\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\n\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\n\tfloat dxRoughness = dFdx(roughness);\n\tfloat dyRoughness = dFdy(roughness);\n\tvec3 dx = dFdx( vec * scale * dxRoughness );\n\tvec3 dy = dFdy( vec * scale * dyRoughness );\n\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\n\td = clamp(d, 1.0, cubeUV_rangeClamp);\n\tfloat mipLevel = 0.5 * log2(d);\n\treturn vec2(floor(mipLevel), fract(mipLevel));\n}\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\n\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\n\tfloat a = 16.0 * cubeUV_rcpTextureSize;\n\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\n\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\n\tfloat powScale = exp2_packed.x * exp2_packed.y;\n\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\n\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\n\tbool bRes = mipLevel == 0.0;\n\tscale = bRes && (scale < a) ? a : scale;\n\tvec3 r;\n\tvec2 offset;\n\tint face = getFaceFromDirection(direction);\n\tfloat rcpPowScale = 1.0 / powScale;\n\tif( face == 0) {\n\t\tr = vec3(direction.x, -direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 1) {\n\t\tr = vec3(direction.y, direction.x, direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 2) {\n\t\tr = vec3(direction.z, direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\n\t}\n\telse if( face == 3) {\n\t\tr = vec3(direction.x, direction.z, direction.y);\n\t\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse if( face == 4) {\n\t\tr = vec3(direction.y, direction.x, -direction.z);\n\t\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\telse {\n\t\tr = vec3(direction.z, -direction.x, direction.y);\n\t\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\n\t\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\n\t}\n\tr = normalize(r);\n\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\n\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\n\tvec2 base = offset + vec2( texelOffset );\n\treturn base + s * ( scale - 2.0 * texelOffset );\n}\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\n\tfloat roughnessVal = roughness* cubeUV_maxLods3;\n\tfloat r1 = floor(roughnessVal);\n\tfloat r2 = r1 + 1.0;\n\tfloat t = fract(roughnessVal);\n\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\n\tfloat s = mipInfo.y;\n\tfloat level0 = mipInfo.x;\n\tfloat level1 = level0 + 1.0;\n\tlevel1 = level1 > 5.0 ? 5.0 : level1;\n\tlevel0 += min( floor( s + 0.5 ), 5.0 );\n\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\n\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\n\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\n\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\n\tvec4 result = mix(color10, color20, t);\n\treturn vec4(result.rgb, 1.0);\n}\n#endif\n"; + + var defaultnormal_vertex = "#ifdef FLIP_SIDED\n\tobjectNormal = -objectNormal;\n#endif\nvec3 transformedNormal = normalMatrix * objectNormal;\n"; + + var displacementmap_pars_vertex = "#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif\n"; + + var displacementmap_vertex = "#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normal * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\n#endif\n"; + + var emissivemap_fragment = "#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif\n"; + + var emissivemap_pars_fragment = "#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif\n"; + + var encodings_fragment = " gl_FragColor = linearToOutputTexel( gl_FragColor );\n"; + + var encodings_pars_fragment = "\nvec4 LinearToLinear( in vec4 value ) {\n return value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n return vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n return vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n return vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n return vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n return vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n float maxComponent = max( max( value.r, value.g ), value.b );\n float fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n return vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n return vec4( value.xyz * value.w * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n float maxRGB = max( value.x, max( value.g, value.b ) );\n float M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n M = ceil( M * 255.0 ) / 255.0;\n return vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n return vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n float maxRGB = max( value.x, max( value.g, value.b ) );\n float D = max( maxRange / maxRGB, 1.0 );\n D = min( floor( D ) / 255.0, 1.0 );\n return vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n vec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\n Xp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\n vec4 vResult;\n vResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n float Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n vResult.w = fract(Le);\n vResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\n return vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n float Le = value.z * 255.0 + value.w;\n vec3 Xp_Y_XYZp;\n Xp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\n Xp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n Xp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n vec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\n return vec4( max(vRGB, 0.0), 1.0 );\n}\n"; + + var envmap_fragment = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\tvec2 sampleUV;\n\t\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\n\t\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\tvec4 envColor = texture2D( envMap, sampleUV );\n\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\tvec3 reflectView = flipNormal * normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\n\t\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\tenvColor = envMapTexelToLinear( envColor );\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif\n"; + + var envmap_pars_fragment = "#if defined( USE_ENVMAP ) || defined( PHYSICAL )\n\tuniform float reflectivity;\n\tuniform float envMapIntenstiy;\n#endif\n#ifdef USE_ENVMAP\n\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\n\t\tvarying vec3 vWorldPosition;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\tuniform float flipEnvMap;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif\n"; + + var envmap_pars_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif\n"; + + var envmap_vertex = "#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif\n"; + + var fog_fragment = "#ifdef USE_FOG\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tfloat depth = gl_FragDepthEXT / gl_FragCoord.w;\n\t#else\n\t\tfloat depth = gl_FragCoord.z / gl_FragCoord.w;\n\t#endif\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * depth * depth * LOG2 ) );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, depth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif\n"; + + var fog_pars_fragment = "#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif"; + + var lightmap_fragment = "#ifdef USE_LIGHTMAP\n\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n#endif\n"; + + var lightmap_pars_fragment = "#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif"; + + var lights_lambert_vertex = "vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\n#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n#endif\n"; + + var lights_pars = "uniform vec3 ambientLightColor;\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tif ( testLightInRange( lightDistance, pointLight.distance ) ) {\n\t\t\tdirectLight.color = pointLight.color;\n\t\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t\tint shadow;\n\t\tfloat shadowBias;\n\t\tfloat shadowRadius;\n\t\tvec2 shadowMapSize;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( all( bvec2( angleCos > spotLight.coneCos, testLightInRange( lightDistance, spotLight.distance ) ) ) ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\t#include \n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = flipNormal * vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryVec = flipNormal * vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar - 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\n\t\t#endif\n\t\t#include \n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec3 queryReflectVec = flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\n\t\t#elif defined( ENVMAP_TYPE_EQUIREC )\n\t\t\tvec2 sampleUV;\n\t\t\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\n\t\t\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_SPHERE )\n\t\t\tvec3 reflectView = flipNormal * normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif\n"; + + var lights_phong_fragment = "BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;\n"; + + var lights_phong_pars_fragment = "varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3\tdiffuseColor;\n\tvec3\tspecularColor;\n\tfloat\tspecularShininess;\n\tfloat\tspecularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)\n"; + + var lights_physical_fragment = "PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\n#ifdef STANDARD\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n\tmaterial.clearCoat = saturate( clearCoat );\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\n#endif\n"; + + var lights_physical_pars_fragment = "struct PhysicalMaterial {\n\tvec3\tdiffuseColor;\n\tfloat\tspecularRoughness;\n\tvec3\tspecularColor;\n\t#ifndef STANDARD\n\t\tfloat clearCoat;\n\t\tfloat clearCoatRoughness;\n\t#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifndef STANDARD\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\n\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\t#ifndef STANDARD\n\t\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t#ifndef STANDARD\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\tfloat dotNL = dotNV;\n\t\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\n\t#else\n\t\tfloat clearCoatDHR = 0.0;\n\t#endif\n\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\n\t#ifndef STANDARD\n\t\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\n\t#endif\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\n#define Material_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.specularRoughness )\n#define Material_ClearCoat_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}\n"; + + var lights_template = "\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = normalize( vViewPosition );\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#ifdef USE_SHADOWMAP\n\t\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\t#ifdef USE_LIGHTMAP\n\t\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t \tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\n\t#endif\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\n\t#ifndef STANDARD\n\t\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\n\t#else\n\t\tvec3 clearCoatRadiance = vec3( 0.0 );\n\t#endif\n\t\t\n\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\n#endif\n"; + + var logdepthbuf_fragment = "#if defined(USE_LOGDEPTHBUF) && defined(USE_LOGDEPTHBUF_EXT)\n\tgl_FragDepthEXT = log2(vFragDepth) * logDepthBufFC * 0.5;\n#endif"; + + var logdepthbuf_pars_fragment = "#ifdef USE_LOGDEPTHBUF\n\tuniform float logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n#endif\n"; + + var logdepthbuf_pars_vertex = "#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t#endif\n\tuniform float logDepthBufFC;\n#endif"; + + var logdepthbuf_vertex = "#ifdef USE_LOGDEPTHBUF\n\tgl_Position.z = log2(max( EPSILON, gl_Position.w + 1.0 )) * logDepthBufFC;\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t#else\n\t\tgl_Position.z = (gl_Position.z - 1.0) * gl_Position.w;\n\t#endif\n#endif\n"; + + var map_fragment = "#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif\n"; + + var map_pars_fragment = "#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n"; + + var map_particle_fragment = "#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, vec2( gl_PointCoord.x, 1.0 - gl_PointCoord.y ) * offsetRepeat.zw + offsetRepeat.xy );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n"; + + var map_particle_pars_fragment = "#ifdef USE_MAP\n\tuniform vec4 offsetRepeat;\n\tuniform sampler2D map;\n#endif\n"; + + var metalnessmap_fragment = "float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.r;\n#endif\n"; + + var metalnessmap_pars_fragment = "#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif"; + + var morphnormal_vertex = "#ifdef USE_MORPHNORMALS\n\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\n\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\n\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\n\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\n#endif\n"; + + var morphtarget_pars_vertex = "#ifdef USE_MORPHTARGETS\n\t#ifndef USE_MORPHNORMALS\n\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif"; + + var morphtarget_vertex = "#ifdef USE_MORPHTARGETS\n\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\n\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\n\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\n\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\n\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\n\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\n\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\n\t#endif\n#endif\n"; + + var normal_flip = "#ifdef DOUBLE_SIDED\n\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n#else\n\tfloat flipNormal = 1.0;\n#endif\n"; + + var normal_fragment = "#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal ) * flipNormal;\n#endif\n#ifdef USE_NORMALMAP\n\tnormal = perturbNormal2Arb( -vViewPosition, normal );\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif\n"; + + var normalmap_pars_fragment = "#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\n\t\tvec3 q0 = dFdx( eye_pos.xyz );\n\t\tvec3 q1 = dFdy( eye_pos.xyz );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\n\t\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\n\t\tvec3 N = normalize( surf_norm );\n\t\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t\tmapN.xy = normalScale * mapN.xy;\n\t\tmat3 tsn = mat3( S, T, N );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif\n"; + + var packing = "vec3 packNormalToRGB( const in vec3 normal ) {\n return normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n return 1.0 - 2.0 * rgb.xyz;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n return ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n return linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n return (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n return ( near * far ) / ( ( far - near ) * invClipZ - far );\n}\n"; + + var premultiplied_alpha_fragment = "#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif\n"; + + var project_vertex = "#ifdef USE_SKINNING\n\tvec4 mvPosition = modelViewMatrix * skinned;\n#else\n\tvec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\n#endif\ngl_Position = projectionMatrix * mvPosition;\n"; + + var roughnessmap_fragment = "float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.r;\n#endif\n"; + + var roughnessmap_pars_fragment = "#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif"; + + var shadowmap_pars_fragment = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\n\t\tconst vec2 offset = vec2( 0.0, 1.0 );\n\t\tvec2 texelSize = vec2( 1.0 ) / size;\n\t\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\n\t\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\n\t\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\n\t\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\n\t\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\n\t\tvec2 f = fract( uv * size + 0.5 );\n\t\tfloat a = mix( lb, lt, f.y );\n\t\tfloat b = mix( rb, rt, f.y );\n\t\tfloat c = mix( a, b, f.x );\n\t\treturn c;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\treturn (\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn 1.0;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\tfloat dp = ( length( lightToPosition ) - shadowBias ) / 1000.0;\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif\n"; + + var shadowmap_pars_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\n\t#endif\n#endif\n"; + + var shadowmap_vertex = "#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\n\t}\n\t#endif\n#endif\n"; + + var shadowmask_pars_fragment = "float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHTS > 0\n\tDirectionalLight directionalLight;\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_SPOT_LIGHTS > 0\n\tSpotLight spotLight;\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#if NUM_POINT_LIGHTS > 0\n\tPointLight pointLight;\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\n\t}\n\t#endif\n\t#endif\n\treturn shadow;\n}\n"; + + var skinbase_vertex = "#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif"; + + var skinning_pars_vertex = "#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform sampler2D boneTexture;\n\t\tuniform int boneTextureWidth;\n\t\tuniform int boneTextureHeight;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureWidth ) );\n\t\t\tfloat y = floor( j / float( boneTextureWidth ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureWidth );\n\t\t\tfloat dy = 1.0 / float( boneTextureHeight );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif\n"; + + var skinning_vertex = "#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\tskinned = bindMatrixInverse * skinned;\n#endif\n"; + + var skinnormal_vertex = "#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n#endif\n"; + + var specularmap_fragment = "float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif"; + + var specularmap_pars_fragment = "#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif"; + + var tonemapping_fragment = "#if defined( TONE_MAPPING )\n gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif\n"; + + var tonemapping_pars_fragment = "#define saturate(a) clamp( a, 0.0, 1.0 )\nuniform float toneMappingExposure;\nuniform float toneMappingWhitePoint;\nvec3 LinearToneMapping( vec3 color ) {\n return toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n color *= toneMappingExposure;\n return saturate( color / ( vec3( 1.0 ) + color ) );\n}\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\nvec3 Uncharted2ToneMapping( vec3 color ) {\n color *= toneMappingExposure;\n return saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n color *= toneMappingExposure;\n color = max( vec3( 0.0 ), color - 0.004 );\n return pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\n"; + + var uv_pars_fragment = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n#endif"; + + var uv_pars_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvarying vec2 vUv;\n\tuniform vec4 offsetRepeat;\n#endif\n"; + + var uv_vertex = "#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\n\tvUv = uv * offsetRepeat.zw + offsetRepeat.xy;\n#endif"; + + var uv2_pars_fragment = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif"; + + var uv2_pars_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n#endif"; + + var uv2_vertex = "#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = uv2;\n#endif"; + + var worldpos_vertex = "#if defined( USE_ENVMAP ) || defined( PHONG ) || defined( PHYSICAL ) || defined( LAMBERT ) || defined ( USE_SHADOWMAP )\n\t#ifdef USE_SKINNING\n\t\tvec4 worldPosition = modelMatrix * skinned;\n\t#else\n\t\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\n\t#endif\n#endif\n"; + + var cube_frag = "uniform samplerCube tCube;\nuniform float tFlip;\nuniform float opacity;\nvarying vec3 vWorldPosition;\n#include \nvoid main() {\n\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\n\tgl_FragColor.a *= opacity;\n}\n"; + + var cube_vert = "varying vec3 vWorldPosition;\n#include \nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}\n"; + + var depth_frag = "#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\n\t#endif\n}\n"; + + var depth_vert = "#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var distanceRGBA_frag = "uniform vec3 lightPos;\nvarying vec4 vWorldPosition;\n#include \n#include \n#include \nvoid main () {\n\t#include \n\tgl_FragColor = packDepthToRGBA( length( vWorldPosition.xyz - lightPos.xyz ) / 1000.0 );\n}\n"; + + var distanceRGBA_vert = "varying vec4 vWorldPosition;\n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvWorldPosition = worldPosition;\n}\n"; + + var equirect_frag = "uniform sampler2D tEquirect;\nuniform float tFlip;\nvarying vec3 vWorldPosition;\n#include \nvoid main() {\n\tvec3 direction = normalize( vWorldPosition );\n\tvec2 sampleUV;\n\tsampleUV.y = saturate( tFlip * direction.y * -0.5 + 0.5 );\n\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\n\tgl_FragColor = texture2D( tEquirect, sampleUV );\n}\n"; + + var equirect_vert = "varying vec3 vWorldPosition;\n#include \nvoid main() {\n\tvWorldPosition = transformDirection( position, modelMatrix );\n\t#include \n\t#include \n}\n"; + + var linedashed_frag = "uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var linedashed_vert = "uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvLineDistance = scale * lineDistance;\n\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include \n\t#include \n}\n"; + + var meshbasic_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tReflectedLight reflectedLight;\n\treflectedLight.directDiffuse = vec3( 0.0 );\n\treflectedLight.directSpecular = vec3( 0.0 );\n\treflectedLight.indirectDiffuse = diffuseColor.rgb;\n\treflectedLight.indirectSpecular = vec3( 0.0 );\n\t#include \n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include \n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshbasic_vert = "#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#ifdef USE_ENVMAP\n\t#include \n\t#include \n\t#include \n\t#include \n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshlambert_frag = "uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\n\t#include \n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include \n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshlambert_vert = "#define LAMBERT\nvarying vec3 vLightFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshphong_frag = "#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include \n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshphong_vert = "#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n\t#include \n}\n"; + + var meshphysical_frag = "#define PHYSICAL\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifndef STANDARD\n\tuniform float clearCoat;\n\tuniform float clearCoatRoughness;\n#endif\nuniform float envMapIntensity;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var meshphysical_vert = "#define PHYSICAL\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n\tvViewPosition = - mvPosition.xyz;\n\t#include \n\t#include \n}\n"; + + var normal_frag = "uniform float opacity;\nvarying vec3 vNormal;\n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tgl_FragColor = vec4( packNormalToRGB( vNormal ), opacity );\n\t#include \n}\n"; + + var normal_vert = "varying vec3 vNormal;\n#include \n#include \n#include \n#include \nvoid main() {\n\tvNormal = normalize( normalMatrix * normal );\n\t#include \n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var points_frag = "uniform vec3 diffuse;\nuniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include \n\t#include \n\t#include \n\t#include \n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var points_vert = "uniform float size;\nuniform float scale;\n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#ifdef USE_SIZEATTENUATION\n\t\tgl_PointSize = size * ( scale / - mvPosition.z );\n\t#else\n\t\tgl_PointSize = size;\n\t#endif\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var shadow_frag = "uniform float opacity;\n#include \n#include \n#include \n#include \n#include \n#include \nvoid main() {\n\tgl_FragColor = vec4( 0.0, 0.0, 0.0, opacity * ( 1.0 - getShadowMask() ) );\n}\n"; + + var shadow_vert = "#include \nvoid main() {\n\t#include \n\t#include \n\t#include \n\t#include \n}\n"; + + var ShaderChunk = { + alphamap_fragment: alphamap_fragment, + alphamap_pars_fragment: alphamap_pars_fragment, + alphatest_fragment: alphatest_fragment, + aomap_fragment: aomap_fragment, + aomap_pars_fragment: aomap_pars_fragment, + begin_vertex: begin_vertex, + beginnormal_vertex: beginnormal_vertex, + bsdfs: bsdfs, + bumpmap_pars_fragment: bumpmap_pars_fragment, + clipping_planes_fragment: clipping_planes_fragment, + clipping_planes_pars_fragment: clipping_planes_pars_fragment, + clipping_planes_pars_vertex: clipping_planes_pars_vertex, + clipping_planes_vertex: clipping_planes_vertex, + color_fragment: color_fragment, + color_pars_fragment: color_pars_fragment, + color_pars_vertex: color_pars_vertex, + color_vertex: color_vertex, + common: common, + cube_uv_reflection_fragment: cube_uv_reflection_fragment, + defaultnormal_vertex: defaultnormal_vertex, + displacementmap_pars_vertex: displacementmap_pars_vertex, + displacementmap_vertex: displacementmap_vertex, + emissivemap_fragment: emissivemap_fragment, + emissivemap_pars_fragment: emissivemap_pars_fragment, + encodings_fragment: encodings_fragment, + encodings_pars_fragment: encodings_pars_fragment, + envmap_fragment: envmap_fragment, + envmap_pars_fragment: envmap_pars_fragment, + envmap_pars_vertex: envmap_pars_vertex, + envmap_vertex: envmap_vertex, + fog_fragment: fog_fragment, + fog_pars_fragment: fog_pars_fragment, + lightmap_fragment: lightmap_fragment, + lightmap_pars_fragment: lightmap_pars_fragment, + lights_lambert_vertex: lights_lambert_vertex, + lights_pars: lights_pars, + lights_phong_fragment: lights_phong_fragment, + lights_phong_pars_fragment: lights_phong_pars_fragment, + lights_physical_fragment: lights_physical_fragment, + lights_physical_pars_fragment: lights_physical_pars_fragment, + lights_template: lights_template, + logdepthbuf_fragment: logdepthbuf_fragment, + logdepthbuf_pars_fragment: logdepthbuf_pars_fragment, + logdepthbuf_pars_vertex: logdepthbuf_pars_vertex, + logdepthbuf_vertex: logdepthbuf_vertex, + map_fragment: map_fragment, + map_pars_fragment: map_pars_fragment, + map_particle_fragment: map_particle_fragment, + map_particle_pars_fragment: map_particle_pars_fragment, + metalnessmap_fragment: metalnessmap_fragment, + metalnessmap_pars_fragment: metalnessmap_pars_fragment, + morphnormal_vertex: morphnormal_vertex, + morphtarget_pars_vertex: morphtarget_pars_vertex, + morphtarget_vertex: morphtarget_vertex, + normal_flip: normal_flip, + normal_fragment: normal_fragment, + normalmap_pars_fragment: normalmap_pars_fragment, + packing: packing, + premultiplied_alpha_fragment: premultiplied_alpha_fragment, + project_vertex: project_vertex, + roughnessmap_fragment: roughnessmap_fragment, + roughnessmap_pars_fragment: roughnessmap_pars_fragment, + shadowmap_pars_fragment: shadowmap_pars_fragment, + shadowmap_pars_vertex: shadowmap_pars_vertex, + shadowmap_vertex: shadowmap_vertex, + shadowmask_pars_fragment: shadowmask_pars_fragment, + skinbase_vertex: skinbase_vertex, + skinning_pars_vertex: skinning_pars_vertex, + skinning_vertex: skinning_vertex, + skinnormal_vertex: skinnormal_vertex, + specularmap_fragment: specularmap_fragment, + specularmap_pars_fragment: specularmap_pars_fragment, + tonemapping_fragment: tonemapping_fragment, + tonemapping_pars_fragment: tonemapping_pars_fragment, + uv_pars_fragment: uv_pars_fragment, + uv_pars_vertex: uv_pars_vertex, + uv_vertex: uv_vertex, + uv2_pars_fragment: uv2_pars_fragment, + uv2_pars_vertex: uv2_pars_vertex, + uv2_vertex: uv2_vertex, + worldpos_vertex: worldpos_vertex, + + cube_frag: cube_frag, + cube_vert: cube_vert, + depth_frag: depth_frag, + depth_vert: depth_vert, + distanceRGBA_frag: distanceRGBA_frag, + distanceRGBA_vert: distanceRGBA_vert, + equirect_frag: equirect_frag, + equirect_vert: equirect_vert, + linedashed_frag: linedashed_frag, + linedashed_vert: linedashed_vert, + meshbasic_frag: meshbasic_frag, + meshbasic_vert: meshbasic_vert, + meshlambert_frag: meshlambert_frag, + meshlambert_vert: meshlambert_vert, + meshphong_frag: meshphong_frag, + meshphong_vert: meshphong_vert, + meshphysical_frag: meshphysical_frag, + meshphysical_vert: meshphysical_vert, + normal_frag: normal_frag, + normal_vert: normal_vert, + points_frag: points_frag, + points_vert: points_vert, + shadow_frag: shadow_frag, + shadow_vert: shadow_vert + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Color( r, g, b ) { + + if ( g === undefined && b === undefined ) { + + // r is THREE.Color, hex or string + return this.set( r ); + + } + + return this.setRGB( r, g, b ); + + } + + Color.prototype = { + + constructor: Color, + + isColor: true, + + r: 1, g: 1, b: 1, + + set: function ( value ) { + + if ( (value && value.isColor) ) { + + this.copy( value ); + + } else if ( typeof value === 'number' ) { + + this.setHex( value ); + + } else if ( typeof value === 'string' ) { + + this.setStyle( value ); + + } + + return this; + + }, + + setScalar: function ( scalar ) { + + this.r = scalar; + this.g = scalar; + this.b = scalar; + + return this; + + }, + + setHex: function ( hex ) { + + hex = Math.floor( hex ); + + this.r = ( hex >> 16 & 255 ) / 255; + this.g = ( hex >> 8 & 255 ) / 255; + this.b = ( hex & 255 ) / 255; + + return this; + + }, + + setRGB: function ( r, g, b ) { + + this.r = r; + this.g = g; + this.b = b; + + return this; + + }, + + setHSL: function () { + + function hue2rgb( p, q, t ) { + + if ( t < 0 ) t += 1; + if ( t > 1 ) t -= 1; + if ( t < 1 / 6 ) return p + ( q - p ) * 6 * t; + if ( t < 1 / 2 ) return q; + if ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t ); + return p; + + } + + return function setHSL( h, s, l ) { + + // h,s,l ranges are in 0.0 - 1.0 + h = _Math.euclideanModulo( h, 1 ); + s = _Math.clamp( s, 0, 1 ); + l = _Math.clamp( l, 0, 1 ); + + if ( s === 0 ) { + + this.r = this.g = this.b = l; + + } else { + + var p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s ); + var q = ( 2 * l ) - p; + + this.r = hue2rgb( q, p, h + 1 / 3 ); + this.g = hue2rgb( q, p, h ); + this.b = hue2rgb( q, p, h - 1 / 3 ); + + } + + return this; + + }; + + }(), + + setStyle: function ( style ) { + + function handleAlpha( string ) { + + if ( string === undefined ) return; + + if ( parseFloat( string ) < 1 ) { + + console.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' ); + + } + + } + + + var m; + + if ( m = /^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec( style ) ) { + + // rgb / hsl + + var color; + var name = m[ 1 ]; + var components = m[ 2 ]; + + switch ( name ) { + + case 'rgb': + case 'rgba': + + if ( color = /^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) { + + // rgb(255,0,0) rgba(255,0,0,0.5) + this.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255; + this.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255; + this.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255; + + handleAlpha( color[ 5 ] ); + + return this; + + } + + if ( color = /^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) { + + // rgb(100%,0%,0%) rgba(100%,0%,0%,0.5) + this.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100; + this.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100; + this.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100; + + handleAlpha( color[ 5 ] ); + + return this; + + } + + break; + + case 'hsl': + case 'hsla': + + if ( color = /^([0-9]*\.?[0-9]+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(,\s*([0-9]*\.?[0-9]+)\s*)?$/.exec( components ) ) { + + // hsl(120,50%,50%) hsla(120,50%,50%,0.5) + var h = parseFloat( color[ 1 ] ) / 360; + var s = parseInt( color[ 2 ], 10 ) / 100; + var l = parseInt( color[ 3 ], 10 ) / 100; + + handleAlpha( color[ 5 ] ); + + return this.setHSL( h, s, l ); + + } + + break; + + } + + } else if ( m = /^\#([A-Fa-f0-9]+)$/.exec( style ) ) { + + // hex color + + var hex = m[ 1 ]; + var size = hex.length; + + if ( size === 3 ) { + + // #ff0 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255; + + return this; + + } else if ( size === 6 ) { + + // #ff0000 + this.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255; + this.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255; + this.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255; + + return this; + + } + + } + + if ( style && style.length > 0 ) { + + // color keywords + var hex = ColorKeywords[ style ]; + + if ( hex !== undefined ) { + + // red + this.setHex( hex ); + + } else { + + // unknown color + console.warn( 'THREE.Color: Unknown color ' + style ); + + } + + } + + return this; + + }, + + clone: function () { + + return new this.constructor( this.r, this.g, this.b ); + + }, + + copy: function ( color ) { + + this.r = color.r; + this.g = color.g; + this.b = color.b; + + return this; + + }, + + copyGammaToLinear: function ( color, gammaFactor ) { + + if ( gammaFactor === undefined ) gammaFactor = 2.0; + + this.r = Math.pow( color.r, gammaFactor ); + this.g = Math.pow( color.g, gammaFactor ); + this.b = Math.pow( color.b, gammaFactor ); + + return this; + + }, + + copyLinearToGamma: function ( color, gammaFactor ) { + + if ( gammaFactor === undefined ) gammaFactor = 2.0; + + var safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0; + + this.r = Math.pow( color.r, safeInverse ); + this.g = Math.pow( color.g, safeInverse ); + this.b = Math.pow( color.b, safeInverse ); + + return this; + + }, + + convertGammaToLinear: function () { + + var r = this.r, g = this.g, b = this.b; + + this.r = r * r; + this.g = g * g; + this.b = b * b; + + return this; + + }, + + convertLinearToGamma: function () { + + this.r = Math.sqrt( this.r ); + this.g = Math.sqrt( this.g ); + this.b = Math.sqrt( this.b ); + + return this; + + }, + + getHex: function () { + + return ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0; + + }, + + getHexString: function () { + + return ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 ); + + }, + + getHSL: function ( optionalTarget ) { + + // h,s,l ranges are in 0.0 - 1.0 + + var hsl = optionalTarget || { h: 0, s: 0, l: 0 }; + + var r = this.r, g = this.g, b = this.b; + + var max = Math.max( r, g, b ); + var min = Math.min( r, g, b ); + + var hue, saturation; + var lightness = ( min + max ) / 2.0; + + if ( min === max ) { + + hue = 0; + saturation = 0; + + } else { + + var delta = max - min; + + saturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min ); + + switch ( max ) { + + case r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break; + case g: hue = ( b - r ) / delta + 2; break; + case b: hue = ( r - g ) / delta + 4; break; + + } + + hue /= 6; + + } + + hsl.h = hue; + hsl.s = saturation; + hsl.l = lightness; + + return hsl; + + }, + + getStyle: function () { + + return 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')'; + + }, + + offsetHSL: function ( h, s, l ) { + + var hsl = this.getHSL(); + + hsl.h += h; hsl.s += s; hsl.l += l; + + this.setHSL( hsl.h, hsl.s, hsl.l ); + + return this; + + }, + + add: function ( color ) { + + this.r += color.r; + this.g += color.g; + this.b += color.b; + + return this; + + }, + + addColors: function ( color1, color2 ) { + + this.r = color1.r + color2.r; + this.g = color1.g + color2.g; + this.b = color1.b + color2.b; + + return this; + + }, + + addScalar: function ( s ) { + + this.r += s; + this.g += s; + this.b += s; + + return this; + + }, + + sub: function( color ) { + + this.r = Math.max( 0, this.r - color.r ); + this.g = Math.max( 0, this.g - color.g ); + this.b = Math.max( 0, this.b - color.b ); + + return this; + + }, + + multiply: function ( color ) { + + this.r *= color.r; + this.g *= color.g; + this.b *= color.b; + + return this; + + }, + + multiplyScalar: function ( s ) { + + this.r *= s; + this.g *= s; + this.b *= s; + + return this; + + }, + + lerp: function ( color, alpha ) { + + this.r += ( color.r - this.r ) * alpha; + this.g += ( color.g - this.g ) * alpha; + this.b += ( color.b - this.b ) * alpha; + + return this; + + }, + + equals: function ( c ) { + + return ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b ); + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + this.r = array[ offset ]; + this.g = array[ offset + 1 ]; + this.b = array[ offset + 2 ]; + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this.r; + array[ offset + 1 ] = this.g; + array[ offset + 2 ] = this.b; + + return array; + + }, + + toJSON: function () { + + return this.getHex(); + + } + + }; + + var ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF, + 'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2, + 'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50, + 'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B, + 'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B, + 'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F, + 'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3, + 'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222, + 'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700, + 'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4, + 'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00, + 'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3, + 'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA, + 'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32, + 'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3, + 'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC, + 'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD, + 'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6, + 'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9, + 'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F, + 'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE, + 'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA, + 'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0, + 'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 }; + + /** + * Uniforms library for shared webgl shaders + */ + + var UniformsLib = { + + common: { + + diffuse: { value: new Color( 0xeeeeee ) }, + opacity: { value: 1.0 }, + + map: { value: null }, + offsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) }, + + specularMap: { value: null }, + alphaMap: { value: null }, + + envMap: { value: null }, + flipEnvMap: { value: - 1 }, + reflectivity: { value: 1.0 }, + refractionRatio: { value: 0.98 } + + }, + + aomap: { + + aoMap: { value: null }, + aoMapIntensity: { value: 1 } + + }, + + lightmap: { + + lightMap: { value: null }, + lightMapIntensity: { value: 1 } + + }, + + emissivemap: { + + emissiveMap: { value: null } + + }, + + bumpmap: { + + bumpMap: { value: null }, + bumpScale: { value: 1 } + + }, + + normalmap: { + + normalMap: { value: null }, + normalScale: { value: new Vector2( 1, 1 ) } + + }, + + displacementmap: { + + displacementMap: { value: null }, + displacementScale: { value: 1 }, + displacementBias: { value: 0 } + + }, + + roughnessmap: { + + roughnessMap: { value: null } + + }, + + metalnessmap: { + + metalnessMap: { value: null } + + }, + + fog: { + + fogDensity: { value: 0.00025 }, + fogNear: { value: 1 }, + fogFar: { value: 2000 }, + fogColor: { value: new Color( 0xffffff ) } + + }, + + lights: { + + ambientLightColor: { value: [] }, + + directionalLights: { value: [], properties: { + direction: {}, + color: {}, + + shadow: {}, + shadowBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + directionalShadowMap: { value: [] }, + directionalShadowMatrix: { value: [] }, + + spotLights: { value: [], properties: { + color: {}, + position: {}, + direction: {}, + distance: {}, + coneCos: {}, + penumbraCos: {}, + decay: {}, + + shadow: {}, + shadowBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + spotShadowMap: { value: [] }, + spotShadowMatrix: { value: [] }, + + pointLights: { value: [], properties: { + color: {}, + position: {}, + decay: {}, + distance: {}, + + shadow: {}, + shadowBias: {}, + shadowRadius: {}, + shadowMapSize: {} + } }, + + pointShadowMap: { value: [] }, + pointShadowMatrix: { value: [] }, + + hemisphereLights: { value: [], properties: { + direction: {}, + skyColor: {}, + groundColor: {} + } } + + }, + + points: { + + diffuse: { value: new Color( 0xeeeeee ) }, + opacity: { value: 1.0 }, + size: { value: 1.0 }, + scale: { value: 1.0 }, + map: { value: null }, + offsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) } + + } + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + * @author mikael emtinger / http://gomo.se/ + */ + + var ShaderLib = { + + basic: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.fog + + ] ), + + vertexShader: ShaderChunk.meshbasic_vert, + fragmentShader: ShaderChunk.meshbasic_frag + + }, + + lambert: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.fog, + UniformsLib.lights, + + { + emissive : { value: new Color( 0x000000 ) } + } + + ] ), + + vertexShader: ShaderChunk.meshlambert_vert, + fragmentShader: ShaderChunk.meshlambert_frag + + }, + + phong: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.fog, + UniformsLib.lights, + + { + emissive : { value: new Color( 0x000000 ) }, + specular : { value: new Color( 0x111111 ) }, + shininess: { value: 30 } + } + + ] ), + + vertexShader: ShaderChunk.meshphong_vert, + fragmentShader: ShaderChunk.meshphong_frag + + }, + + standard: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.aomap, + UniformsLib.lightmap, + UniformsLib.emissivemap, + UniformsLib.bumpmap, + UniformsLib.normalmap, + UniformsLib.displacementmap, + UniformsLib.roughnessmap, + UniformsLib.metalnessmap, + UniformsLib.fog, + UniformsLib.lights, + + { + emissive : { value: new Color( 0x000000 ) }, + roughness: { value: 0.5 }, + metalness: { value: 0 }, + envMapIntensity : { value: 1 }, // temporary + } + + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + + }, + + points: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.points, + UniformsLib.fog + + ] ), + + vertexShader: ShaderChunk.points_vert, + fragmentShader: ShaderChunk.points_frag + + }, + + dashed: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.fog, + + { + scale : { value: 1 }, + dashSize : { value: 1 }, + totalSize: { value: 2 } + } + + ] ), + + vertexShader: ShaderChunk.linedashed_vert, + fragmentShader: ShaderChunk.linedashed_frag + + }, + + depth: { + + uniforms: UniformsUtils.merge( [ + + UniformsLib.common, + UniformsLib.displacementmap + + ] ), + + vertexShader: ShaderChunk.depth_vert, + fragmentShader: ShaderChunk.depth_frag + + }, + + normal: { + + uniforms: { + + opacity : { value: 1.0 } + + }, + + vertexShader: ShaderChunk.normal_vert, + fragmentShader: ShaderChunk.normal_frag + + }, + + /* ------------------------------------------------------------------------- + // Cube map shader + ------------------------------------------------------------------------- */ + + cube: { + + uniforms: { + tCube: { value: null }, + tFlip: { value: - 1 }, + opacity: { value: 1.0 } + }, + + vertexShader: ShaderChunk.cube_vert, + fragmentShader: ShaderChunk.cube_frag + + }, + + /* ------------------------------------------------------------------------- + // Cube map shader + ------------------------------------------------------------------------- */ + + equirect: { + + uniforms: { + tEquirect: { value: null }, + tFlip: { value: - 1 } + }, + + vertexShader: ShaderChunk.equirect_vert, + fragmentShader: ShaderChunk.equirect_frag + + }, + + distanceRGBA: { + + uniforms: { + + lightPos: { value: new Vector3() } + + }, + + vertexShader: ShaderChunk.distanceRGBA_vert, + fragmentShader: ShaderChunk.distanceRGBA_frag + + } + + }; + + ShaderLib.physical = { + + uniforms: UniformsUtils.merge( [ + + ShaderLib.standard.uniforms, + + { + clearCoat: { value: 0 }, + clearCoatRoughness: { value: 0 } + } + + ] ), + + vertexShader: ShaderChunk.meshphysical_vert, + fragmentShader: ShaderChunk.meshphysical_frag + + }; + + /** + * @author bhouston / http://clara.io + */ + + function Box2( min, max ) { + + this.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity ); + this.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity ); + + } + + Box2.prototype = { + + constructor: Box2, + + set: function ( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + }, + + setFromPoints: function ( points ) { + + this.makeEmpty(); + + for ( var i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + }, + + setFromCenterAndSize: function () { + + var v1 = new Vector2(); + + return function setFromCenterAndSize( center, size ) { + + var halfSize = v1.copy( size ).multiplyScalar( 0.5 ); + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + }; + + }(), + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + }, + + makeEmpty: function () { + + this.min.x = this.min.y = + Infinity; + this.max.x = this.max.y = - Infinity; + + return this; + + }, + + isEmpty: function () { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ); + + }, + + getCenter: function ( optionalTarget ) { + + var result = optionalTarget || new Vector2(); + return this.isEmpty() ? result.set( 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + }, + + getSize: function ( optionalTarget ) { + + var result = optionalTarget || new Vector2(); + return this.isEmpty() ? result.set( 0, 0 ) : result.subVectors( this.max, this.min ); + + }, + + expandByPoint: function ( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + }, + + expandByVector: function ( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + }, + + expandByScalar: function ( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + }, + + containsPoint: function ( point ) { + + if ( point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y ) { + + return false; + + } + + return true; + + }, + + containsBox: function ( box ) { + + if ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) && + ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) ) { + + return true; + + } + + return false; + + }, + + getParameter: function ( point, optionalTarget ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + var result = optionalTarget || new Vector2(); + + return result.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ) + ); + + }, + + intersectsBox: function ( box ) { + + // using 6 splitting planes to rule out intersections. + + if ( box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y ) { + + return false; + + } + + return true; + + }, + + clampPoint: function ( point, optionalTarget ) { + + var result = optionalTarget || new Vector2(); + return result.copy( point ).clamp( this.min, this.max ); + + }, + + distanceToPoint: function () { + + var v1 = new Vector2(); + + return function distanceToPoint( point ) { + + var clampedPoint = v1.copy( point ).clamp( this.min, this.max ); + return clampedPoint.sub( point ).length(); + + }; + + }(), + + intersect: function ( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + return this; + + }, + + union: function ( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + }, + + translate: function ( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + }, + + equals: function ( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + + }; + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + */ + + function LensFlarePlugin( renderer, flares ) { + + var gl = renderer.context; + var state = renderer.state; + + var vertexBuffer, elementBuffer; + var shader, program, attributes, uniforms; + + var tempTexture, occlusionTexture; + + function init() { + + var vertices = new Float32Array( [ + - 1, - 1, 0, 0, + 1, - 1, 1, 0, + 1, 1, 1, 1, + - 1, 1, 0, 1 + ] ); + + var faces = new Uint16Array( [ + 0, 1, 2, + 0, 2, 3 + ] ); + + // buffers + + vertexBuffer = gl.createBuffer(); + elementBuffer = gl.createBuffer(); + + gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer ); + gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW ); + + gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer ); + gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW ); + + // textures + + tempTexture = gl.createTexture(); + occlusionTexture = gl.createTexture(); + + state.bindTexture( gl.TEXTURE_2D, tempTexture ); + gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGB, 16, 16, 0, gl.RGB, gl.UNSIGNED_BYTE, null ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST ); + + state.bindTexture( gl.TEXTURE_2D, occlusionTexture ); + gl.texImage2D( gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST ); + gl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST ); + + shader = { + + vertexShader: [ + + "uniform lowp int renderType;", + + "uniform vec3 screenPosition;", + "uniform vec2 scale;", + "uniform float rotation;", + + "uniform sampler2D occlusionMap;", + + "attribute vec2 position;", + "attribute vec2 uv;", + + "varying vec2 vUV;", + "varying float vVisibility;", + + "void main() {", + + "vUV = uv;", + + "vec2 pos = position;", + + "if ( renderType == 2 ) {", + + "vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );", + "visibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );", + + "vVisibility = visibility.r / 9.0;", + "vVisibility *= 1.0 - visibility.g / 9.0;", + "vVisibility *= visibility.b / 9.0;", + "vVisibility *= 1.0 - visibility.a / 9.0;", + + "pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;", + "pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;", + + "}", + + "gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );", + + "}" + + ].join( "\n" ), + + fragmentShader: [ + + "uniform lowp int renderType;", + + "uniform sampler2D map;", + "uniform float opacity;", + "uniform vec3 color;", + + "varying vec2 vUV;", + "varying float vVisibility;", + + "void main() {", + + // pink square + + "if ( renderType == 0 ) {", + + "gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );", + + // restore + + "} else if ( renderType == 1 ) {", + + "gl_FragColor = texture2D( map, vUV );", + + // flare + + "} else {", + + "vec4 texture = texture2D( map, vUV );", + "texture.a *= opacity * vVisibility;", + "gl_FragColor = texture;", + "gl_FragColor.rgb *= color;", + + "}", + + "}" + + ].join( "\n" ) + + }; + + program = createProgram( shader ); + + attributes = { + vertex: gl.getAttribLocation ( program, "position" ), + uv: gl.getAttribLocation ( program, "uv" ) + }; + + uniforms = { + renderType: gl.getUniformLocation( program, "renderType" ), + map: gl.getUniformLocation( program, "map" ), + occlusionMap: gl.getUniformLocation( program, "occlusionMap" ), + opacity: gl.getUniformLocation( program, "opacity" ), + color: gl.getUniformLocation( program, "color" ), + scale: gl.getUniformLocation( program, "scale" ), + rotation: gl.getUniformLocation( program, "rotation" ), + screenPosition: gl.getUniformLocation( program, "screenPosition" ) + }; + + } + + /* + * Render lens flares + * Method: renders 16x16 0xff00ff-colored points scattered over the light source area, + * reads these back and calculates occlusion. + */ + + this.render = function ( scene, camera, viewport ) { + + if ( flares.length === 0 ) return; + + var tempPosition = new Vector3(); + + var invAspect = viewport.w / viewport.z, + halfViewportWidth = viewport.z * 0.5, + halfViewportHeight = viewport.w * 0.5; + + var size = 16 / viewport.w, + scale = new Vector2( size * invAspect, size ); + + var screenPosition = new Vector3( 1, 1, 0 ), + screenPositionPixels = new Vector2( 1, 1 ); + + var validArea = new Box2(); + + validArea.min.set( viewport.x, viewport.y ); + validArea.max.set( viewport.x + ( viewport.z - 16 ), viewport.y + ( viewport.w - 16 ) ); + + if ( program === undefined ) { + + init(); + + } + + gl.useProgram( program ); + + state.initAttributes(); + state.enableAttribute( attributes.vertex ); + state.enableAttribute( attributes.uv ); + state.disableUnusedAttributes(); + + // loop through all lens flares to update their occlusion and positions + // setup gl and common used attribs/uniforms + + gl.uniform1i( uniforms.occlusionMap, 0 ); + gl.uniform1i( uniforms.map, 1 ); + + gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer ); + gl.vertexAttribPointer( attributes.vertex, 2, gl.FLOAT, false, 2 * 8, 0 ); + gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 ); + + gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer ); + + state.disable( gl.CULL_FACE ); + state.setDepthWrite( false ); + + for ( var i = 0, l = flares.length; i < l; i ++ ) { + + size = 16 / viewport.w; + scale.set( size * invAspect, size ); + + // calc object screen position + + var flare = flares[ i ]; + + tempPosition.set( flare.matrixWorld.elements[ 12 ], flare.matrixWorld.elements[ 13 ], flare.matrixWorld.elements[ 14 ] ); + + tempPosition.applyMatrix4( camera.matrixWorldInverse ); + tempPosition.applyProjection( camera.projectionMatrix ); + + // setup arrays for gl programs + + screenPosition.copy( tempPosition ); + + // horizontal and vertical coordinate of the lower left corner of the pixels to copy + + screenPositionPixels.x = viewport.x + ( screenPosition.x * halfViewportWidth ) + halfViewportWidth - 8; + screenPositionPixels.y = viewport.y + ( screenPosition.y * halfViewportHeight ) + halfViewportHeight - 8; + + // screen cull + + if ( validArea.containsPoint( screenPositionPixels ) === true ) { + + // save current RGB to temp texture + + state.activeTexture( gl.TEXTURE0 ); + state.bindTexture( gl.TEXTURE_2D, null ); + state.activeTexture( gl.TEXTURE1 ); + state.bindTexture( gl.TEXTURE_2D, tempTexture ); + gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGB, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 ); + + + // render pink quad + + gl.uniform1i( uniforms.renderType, 0 ); + gl.uniform2f( uniforms.scale, scale.x, scale.y ); + gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z ); + + state.disable( gl.BLEND ); + state.enable( gl.DEPTH_TEST ); + + gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 ); + + + // copy result to occlusionMap + + state.activeTexture( gl.TEXTURE0 ); + state.bindTexture( gl.TEXTURE_2D, occlusionTexture ); + gl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGBA, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 ); + + + // restore graphics + + gl.uniform1i( uniforms.renderType, 1 ); + state.disable( gl.DEPTH_TEST ); + + state.activeTexture( gl.TEXTURE1 ); + state.bindTexture( gl.TEXTURE_2D, tempTexture ); + gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 ); + + + // update object positions + + flare.positionScreen.copy( screenPosition ); + + if ( flare.customUpdateCallback ) { + + flare.customUpdateCallback( flare ); + + } else { + + flare.updateLensFlares(); + + } + + // render flares + + gl.uniform1i( uniforms.renderType, 2 ); + state.enable( gl.BLEND ); + + for ( var j = 0, jl = flare.lensFlares.length; j < jl; j ++ ) { + + var sprite = flare.lensFlares[ j ]; + + if ( sprite.opacity > 0.001 && sprite.scale > 0.001 ) { + + screenPosition.x = sprite.x; + screenPosition.y = sprite.y; + screenPosition.z = sprite.z; + + size = sprite.size * sprite.scale / viewport.w; + + scale.x = size * invAspect; + scale.y = size; + + gl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z ); + gl.uniform2f( uniforms.scale, scale.x, scale.y ); + gl.uniform1f( uniforms.rotation, sprite.rotation ); + + gl.uniform1f( uniforms.opacity, sprite.opacity ); + gl.uniform3f( uniforms.color, sprite.color.r, sprite.color.g, sprite.color.b ); + + state.setBlending( sprite.blending, sprite.blendEquation, sprite.blendSrc, sprite.blendDst ); + renderer.setTexture2D( sprite.texture, 1 ); + + gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 ); + + } + + } + + } + + } + + // restore gl + + state.enable( gl.CULL_FACE ); + state.enable( gl.DEPTH_TEST ); + state.setDepthWrite( true ); + + renderer.resetGLState(); + + }; + + function createProgram( shader ) { + + var program = gl.createProgram(); + + var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER ); + var vertexShader = gl.createShader( gl.VERTEX_SHADER ); + + var prefix = "precision " + renderer.getPrecision() + " float;\n"; + + gl.shaderSource( fragmentShader, prefix + shader.fragmentShader ); + gl.shaderSource( vertexShader, prefix + shader.vertexShader ); + + gl.compileShader( fragmentShader ); + gl.compileShader( vertexShader ); + + gl.attachShader( program, fragmentShader ); + gl.attachShader( program, vertexShader ); + + gl.linkProgram( program ); + + return program; + + } + + } + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + */ + + function SpritePlugin( renderer, sprites ) { + + var gl = renderer.context; + var state = renderer.state; + + var vertexBuffer, elementBuffer; + var program, attributes, uniforms; + + var texture; + + // decompose matrixWorld + + var spritePosition = new Vector3(); + var spriteRotation = new Quaternion(); + var spriteScale = new Vector3(); + + function init() { + + var vertices = new Float32Array( [ + - 0.5, - 0.5, 0, 0, + 0.5, - 0.5, 1, 0, + 0.5, 0.5, 1, 1, + - 0.5, 0.5, 0, 1 + ] ); + + var faces = new Uint16Array( [ + 0, 1, 2, + 0, 2, 3 + ] ); + + vertexBuffer = gl.createBuffer(); + elementBuffer = gl.createBuffer(); + + gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer ); + gl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW ); + + gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer ); + gl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW ); + + program = createProgram(); + + attributes = { + position: gl.getAttribLocation ( program, 'position' ), + uv: gl.getAttribLocation ( program, 'uv' ) + }; + + uniforms = { + uvOffset: gl.getUniformLocation( program, 'uvOffset' ), + uvScale: gl.getUniformLocation( program, 'uvScale' ), + + rotation: gl.getUniformLocation( program, 'rotation' ), + scale: gl.getUniformLocation( program, 'scale' ), + + color: gl.getUniformLocation( program, 'color' ), + map: gl.getUniformLocation( program, 'map' ), + opacity: gl.getUniformLocation( program, 'opacity' ), + + modelViewMatrix: gl.getUniformLocation( program, 'modelViewMatrix' ), + projectionMatrix: gl.getUniformLocation( program, 'projectionMatrix' ), + + fogType: gl.getUniformLocation( program, 'fogType' ), + fogDensity: gl.getUniformLocation( program, 'fogDensity' ), + fogNear: gl.getUniformLocation( program, 'fogNear' ), + fogFar: gl.getUniformLocation( program, 'fogFar' ), + fogColor: gl.getUniformLocation( program, 'fogColor' ), + + alphaTest: gl.getUniformLocation( program, 'alphaTest' ) + }; + + var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + canvas.width = 8; + canvas.height = 8; + + var context = canvas.getContext( '2d' ); + context.fillStyle = 'white'; + context.fillRect( 0, 0, 8, 8 ); + + texture = new Texture( canvas ); + texture.needsUpdate = true; + + } + + this.render = function ( scene, camera ) { + + if ( sprites.length === 0 ) return; + + // setup gl + + if ( program === undefined ) { + + init(); + + } + + gl.useProgram( program ); + + state.initAttributes(); + state.enableAttribute( attributes.position ); + state.enableAttribute( attributes.uv ); + state.disableUnusedAttributes(); + + state.disable( gl.CULL_FACE ); + state.enable( gl.BLEND ); + + gl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer ); + gl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 ); + gl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 ); + + gl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer ); + + gl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements ); + + state.activeTexture( gl.TEXTURE0 ); + gl.uniform1i( uniforms.map, 0 ); + + var oldFogType = 0; + var sceneFogType = 0; + var fog = scene.fog; + + if ( fog ) { + + gl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b ); + + if ( (fog && fog.isFog) ) { + + gl.uniform1f( uniforms.fogNear, fog.near ); + gl.uniform1f( uniforms.fogFar, fog.far ); + + gl.uniform1i( uniforms.fogType, 1 ); + oldFogType = 1; + sceneFogType = 1; + + } else if ( (fog && fog.isFogExp2) ) { + + gl.uniform1f( uniforms.fogDensity, fog.density ); + + gl.uniform1i( uniforms.fogType, 2 ); + oldFogType = 2; + sceneFogType = 2; + + } + + } else { + + gl.uniform1i( uniforms.fogType, 0 ); + oldFogType = 0; + sceneFogType = 0; + + } + + + // update positions and sort + + for ( var i = 0, l = sprites.length; i < l; i ++ ) { + + var sprite = sprites[ i ]; + + sprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld ); + sprite.z = - sprite.modelViewMatrix.elements[ 14 ]; + + } + + sprites.sort( painterSortStable ); + + // render all sprites + + var scale = []; + + for ( var i = 0, l = sprites.length; i < l; i ++ ) { + + var sprite = sprites[ i ]; + var material = sprite.material; + + if ( material.visible === false ) continue; + + gl.uniform1f( uniforms.alphaTest, material.alphaTest ); + gl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements ); + + sprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale ); + + scale[ 0 ] = spriteScale.x; + scale[ 1 ] = spriteScale.y; + + var fogType = 0; + + if ( scene.fog && material.fog ) { + + fogType = sceneFogType; + + } + + if ( oldFogType !== fogType ) { + + gl.uniform1i( uniforms.fogType, fogType ); + oldFogType = fogType; + + } + + if ( material.map !== null ) { + + gl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y ); + gl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y ); + + } else { + + gl.uniform2f( uniforms.uvOffset, 0, 0 ); + gl.uniform2f( uniforms.uvScale, 1, 1 ); + + } + + gl.uniform1f( uniforms.opacity, material.opacity ); + gl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b ); + + gl.uniform1f( uniforms.rotation, material.rotation ); + gl.uniform2fv( uniforms.scale, scale ); + + state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst ); + state.setDepthTest( material.depthTest ); + state.setDepthWrite( material.depthWrite ); + + if ( material.map ) { + + renderer.setTexture2D( material.map, 0 ); + + } else { + + renderer.setTexture2D( texture, 0 ); + + } + + gl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 ); + + } + + // restore gl + + state.enable( gl.CULL_FACE ); + + renderer.resetGLState(); + + }; + + function createProgram() { + + var program = gl.createProgram(); + + var vertexShader = gl.createShader( gl.VERTEX_SHADER ); + var fragmentShader = gl.createShader( gl.FRAGMENT_SHADER ); + + gl.shaderSource( vertexShader, [ + + 'precision ' + renderer.getPrecision() + ' float;', + + 'uniform mat4 modelViewMatrix;', + 'uniform mat4 projectionMatrix;', + 'uniform float rotation;', + 'uniform vec2 scale;', + 'uniform vec2 uvOffset;', + 'uniform vec2 uvScale;', + + 'attribute vec2 position;', + 'attribute vec2 uv;', + + 'varying vec2 vUV;', + + 'void main() {', + + 'vUV = uvOffset + uv * uvScale;', + + 'vec2 alignedPosition = position * scale;', + + 'vec2 rotatedPosition;', + 'rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;', + 'rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;', + + 'vec4 finalPosition;', + + 'finalPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );', + 'finalPosition.xy += rotatedPosition;', + 'finalPosition = projectionMatrix * finalPosition;', + + 'gl_Position = finalPosition;', + + '}' + + ].join( '\n' ) ); + + gl.shaderSource( fragmentShader, [ + + 'precision ' + renderer.getPrecision() + ' float;', + + 'uniform vec3 color;', + 'uniform sampler2D map;', + 'uniform float opacity;', + + 'uniform int fogType;', + 'uniform vec3 fogColor;', + 'uniform float fogDensity;', + 'uniform float fogNear;', + 'uniform float fogFar;', + 'uniform float alphaTest;', + + 'varying vec2 vUV;', + + 'void main() {', + + 'vec4 texture = texture2D( map, vUV );', + + 'if ( texture.a < alphaTest ) discard;', + + 'gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );', + + 'if ( fogType > 0 ) {', + + 'float depth = gl_FragCoord.z / gl_FragCoord.w;', + 'float fogFactor = 0.0;', + + 'if ( fogType == 1 ) {', + + 'fogFactor = smoothstep( fogNear, fogFar, depth );', + + '} else {', + + 'const float LOG2 = 1.442695;', + 'fogFactor = exp2( - fogDensity * fogDensity * depth * depth * LOG2 );', + 'fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );', + + '}', + + 'gl_FragColor = mix( gl_FragColor, vec4( fogColor, gl_FragColor.w ), fogFactor );', + + '}', + + '}' + + ].join( '\n' ) ); + + gl.compileShader( vertexShader ); + gl.compileShader( fragmentShader ); + + gl.attachShader( program, vertexShader ); + gl.attachShader( program, fragmentShader ); + + gl.linkProgram( program ); + + return program; + + } + + function painterSortStable( a, b ) { + + if ( a.renderOrder !== b.renderOrder ) { + + return a.renderOrder - b.renderOrder; + + } else if ( a.z !== b.z ) { + + return b.z - a.z; + + } else { + + return b.id - a.id; + + } + + } + + } + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Material() { + + Object.defineProperty( this, 'id', { value: MaterialIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.type = 'Material'; + + this.fog = true; + this.lights = true; + + this.blending = NormalBlending; + this.side = FrontSide; + this.shading = SmoothShading; // THREE.FlatShading, THREE.SmoothShading + this.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors + + this.opacity = 1; + this.transparent = false; + + this.blendSrc = SrcAlphaFactor; + this.blendDst = OneMinusSrcAlphaFactor; + this.blendEquation = AddEquation; + this.blendSrcAlpha = null; + this.blendDstAlpha = null; + this.blendEquationAlpha = null; + + this.depthFunc = LessEqualDepth; + this.depthTest = true; + this.depthWrite = true; + + this.clippingPlanes = null; + this.clipIntersection = false; + this.clipShadows = false; + + this.colorWrite = true; + + this.precision = null; // override the renderer's default precision for this material + + this.polygonOffset = false; + this.polygonOffsetFactor = 0; + this.polygonOffsetUnits = 0; + + this.alphaTest = 0; + this.premultipliedAlpha = false; + + this.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer + + this.visible = true; + + this._needsUpdate = true; + + } + + Material.prototype = { + + constructor: Material, + + isMaterial: true, + + get needsUpdate() { + + return this._needsUpdate; + + }, + + set needsUpdate( value ) { + + if ( value === true ) this.update(); + this._needsUpdate = value; + + }, + + setValues: function ( values ) { + + if ( values === undefined ) return; + + for ( var key in values ) { + + var newValue = values[ key ]; + + if ( newValue === undefined ) { + + console.warn( "THREE.Material: '" + key + "' parameter is undefined." ); + continue; + + } + + var currentValue = this[ key ]; + + if ( currentValue === undefined ) { + + console.warn( "THREE." + this.type + ": '" + key + "' is not a property of this material." ); + continue; + + } + + if ( (currentValue && currentValue.isColor) ) { + + currentValue.set( newValue ); + + } else if ( (currentValue && currentValue.isVector3) && (newValue && newValue.isVector3) ) { + + currentValue.copy( newValue ); + + } else if ( key === 'overdraw' ) { + + // ensure overdraw is backwards-compatible with legacy boolean type + this[ key ] = Number( newValue ); + + } else { + + this[ key ] = newValue; + + } + + } + + }, + + toJSON: function ( meta ) { + + var isRoot = meta === undefined; + + if ( isRoot ) { + + meta = { + textures: {}, + images: {} + }; + + } + + var data = { + metadata: { + version: 4.4, + type: 'Material', + generator: 'Material.toJSON' + } + }; + + // standard Material serialization + data.uuid = this.uuid; + data.type = this.type; + + if ( this.name !== '' ) data.name = this.name; + + if ( (this.color && this.color.isColor) ) data.color = this.color.getHex(); + + if ( this.roughness !== undefined ) data.roughness = this.roughness; + if ( this.metalness !== undefined ) data.metalness = this.metalness; + + if ( (this.emissive && this.emissive.isColor) ) data.emissive = this.emissive.getHex(); + if ( (this.specular && this.specular.isColor) ) data.specular = this.specular.getHex(); + if ( this.shininess !== undefined ) data.shininess = this.shininess; + + if ( (this.map && this.map.isTexture) ) data.map = this.map.toJSON( meta ).uuid; + if ( (this.alphaMap && this.alphaMap.isTexture) ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid; + if ( (this.lightMap && this.lightMap.isTexture) ) data.lightMap = this.lightMap.toJSON( meta ).uuid; + if ( (this.bumpMap && this.bumpMap.isTexture) ) { + + data.bumpMap = this.bumpMap.toJSON( meta ).uuid; + data.bumpScale = this.bumpScale; + + } + if ( (this.normalMap && this.normalMap.isTexture) ) { + + data.normalMap = this.normalMap.toJSON( meta ).uuid; + data.normalScale = this.normalScale.toArray(); + + } + if ( (this.displacementMap && this.displacementMap.isTexture) ) { + + data.displacementMap = this.displacementMap.toJSON( meta ).uuid; + data.displacementScale = this.displacementScale; + data.displacementBias = this.displacementBias; + + } + if ( (this.roughnessMap && this.roughnessMap.isTexture) ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid; + if ( (this.metalnessMap && this.metalnessMap.isTexture) ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid; + + if ( (this.emissiveMap && this.emissiveMap.isTexture) ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid; + if ( (this.specularMap && this.specularMap.isTexture) ) data.specularMap = this.specularMap.toJSON( meta ).uuid; + + if ( (this.envMap && this.envMap.isTexture) ) { + + data.envMap = this.envMap.toJSON( meta ).uuid; + data.reflectivity = this.reflectivity; // Scale behind envMap + + } + + if ( this.size !== undefined ) data.size = this.size; + if ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation; + + if ( this.blending !== NormalBlending ) data.blending = this.blending; + if ( this.shading !== SmoothShading ) data.shading = this.shading; + if ( this.side !== FrontSide ) data.side = this.side; + if ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors; + + if ( this.opacity < 1 ) data.opacity = this.opacity; + if ( this.transparent === true ) data.transparent = this.transparent; + + data.depthFunc = this.depthFunc; + data.depthTest = this.depthTest; + data.depthWrite = this.depthWrite; + + if ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest; + if ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha; + if ( this.wireframe === true ) data.wireframe = this.wireframe; + if ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth; + if ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap; + if ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin; + + data.skinning = this.skinning; + data.morphTargets = this.morphTargets; + + // TODO: Copied from Object3D.toJSON + + function extractFromCache( cache ) { + + var values = []; + + for ( var key in cache ) { + + var data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + + return values; + + } + + if ( isRoot ) { + + var textures = extractFromCache( meta.textures ); + var images = extractFromCache( meta.images ); + + if ( textures.length > 0 ) data.textures = textures; + if ( images.length > 0 ) data.images = images; + + } + + return data; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.name = source.name; + + this.fog = source.fog; + this.lights = source.lights; + + this.blending = source.blending; + this.side = source.side; + this.shading = source.shading; + this.vertexColors = source.vertexColors; + + this.opacity = source.opacity; + this.transparent = source.transparent; + + this.blendSrc = source.blendSrc; + this.blendDst = source.blendDst; + this.blendEquation = source.blendEquation; + this.blendSrcAlpha = source.blendSrcAlpha; + this.blendDstAlpha = source.blendDstAlpha; + this.blendEquationAlpha = source.blendEquationAlpha; + + this.depthFunc = source.depthFunc; + this.depthTest = source.depthTest; + this.depthWrite = source.depthWrite; + + this.colorWrite = source.colorWrite; + + this.precision = source.precision; + + this.polygonOffset = source.polygonOffset; + this.polygonOffsetFactor = source.polygonOffsetFactor; + this.polygonOffsetUnits = source.polygonOffsetUnits; + + this.alphaTest = source.alphaTest; + + this.premultipliedAlpha = source.premultipliedAlpha; + + this.overdraw = source.overdraw; + + this.visible = source.visible; + this.clipShadows = source.clipShadows; + this.clipIntersection = source.clipIntersection; + + var srcPlanes = source.clippingPlanes, + dstPlanes = null; + + if ( srcPlanes !== null ) { + + var n = srcPlanes.length; + dstPlanes = new Array( n ); + + for ( var i = 0; i !== n; ++ i ) + dstPlanes[ i ] = srcPlanes[ i ].clone(); + + } + + this.clippingPlanes = dstPlanes; + + return this; + + }, + + update: function () { + + this.dispatchEvent( { type: 'update' } ); + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + }; + + Object.assign( Material.prototype, EventDispatcher.prototype ); + + var count$1 = 0; + function MaterialIdCount() { return count$1++; } + + /** + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * defines: { "label" : "value" }, + * uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } }, + * + * fragmentShader: , + * vertexShader: , + * + * wireframe: , + * wireframeLinewidth: , + * + * lights: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + + function ShaderMaterial( parameters ) { + + Material.call( this ); + + this.type = 'ShaderMaterial'; + + this.defines = {}; + this.uniforms = {}; + + this.vertexShader = 'void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}'; + this.fragmentShader = 'void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}'; + + this.linewidth = 1; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; // set to use scene fog + this.lights = false; // set to use scene lights + this.clipping = false; // set to use user-defined clipping planes + + this.skinning = false; // set to use skinning attribute streams + this.morphTargets = false; // set to use morph targets + this.morphNormals = false; // set to use morph normals + + this.extensions = { + derivatives: false, // set to use derivatives + fragDepth: false, // set to use fragment depth values + drawBuffers: false, // set to use draw buffers + shaderTextureLOD: false // set to use shader texture LOD + }; + + // When rendered geometry doesn't include these attributes but the material does, + // use these default values in WebGL. This avoids errors when buffer data is missing. + this.defaultAttributeValues = { + 'color': [ 1, 1, 1 ], + 'uv': [ 0, 0 ], + 'uv2': [ 0, 0 ] + }; + + this.index0AttributeName = undefined; + + if ( parameters !== undefined ) { + + if ( parameters.attributes !== undefined ) { + + console.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' ); + + } + + this.setValues( parameters ); + + } + + } + + ShaderMaterial.prototype = Object.create( Material.prototype ); + ShaderMaterial.prototype.constructor = ShaderMaterial; + + ShaderMaterial.prototype.isShaderMaterial = true; + + ShaderMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.fragmentShader = source.fragmentShader; + this.vertexShader = source.vertexShader; + + this.uniforms = UniformsUtils.clone( source.uniforms ); + + this.defines = source.defines; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + this.lights = source.lights; + this.clipping = source.clipping; + + this.skinning = source.skinning; + + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + this.extensions = source.extensions; + + return this; + + }; + + ShaderMaterial.prototype.toJSON = function ( meta ) { + + var data = Material.prototype.toJSON.call( this, meta ); + + data.uniforms = this.uniforms; + data.vertexShader = this.vertexShader; + data.fragmentShader = this.fragmentShader; + + return data; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * @author bhouston / https://clara.io + * @author WestLangley / http://github.com/WestLangley + * + * parameters = { + * + * opacity: , + * + * map: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * wireframe: , + * wireframeLinewidth: + * } + */ + + function MeshDepthMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshDepthMaterial'; + + this.depthPacking = BasicDepthPacking; + + this.skinning = false; + this.morphTargets = false; + + this.map = null; + + this.alphaMap = null; + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + this.lights = false; + + this.setValues( parameters ); + + } + + MeshDepthMaterial.prototype = Object.create( Material.prototype ); + MeshDepthMaterial.prototype.constructor = MeshDepthMaterial; + + MeshDepthMaterial.prototype.isMeshDepthMaterial = true; + + MeshDepthMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.depthPacking = source.depthPacking; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + + this.map = source.map; + + this.alphaMap = source.alphaMap; + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + return this; + + }; + + /** + * @author bhouston / http://clara.io + * @author WestLangley / http://github.com/WestLangley + */ + + function Box3( min, max ) { + + this.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity ); + this.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity ); + + } + + Box3.prototype = { + + constructor: Box3, + + isBox3: true, + + set: function ( min, max ) { + + this.min.copy( min ); + this.max.copy( max ); + + return this; + + }, + + setFromArray: function ( array ) { + + var minX = + Infinity; + var minY = + Infinity; + var minZ = + Infinity; + + var maxX = - Infinity; + var maxY = - Infinity; + var maxZ = - Infinity; + + for ( var i = 0, l = array.length; i < l; i += 3 ) { + + var x = array[ i ]; + var y = array[ i + 1 ]; + var z = array[ i + 2 ]; + + if ( x < minX ) minX = x; + if ( y < minY ) minY = y; + if ( z < minZ ) minZ = z; + + if ( x > maxX ) maxX = x; + if ( y > maxY ) maxY = y; + if ( z > maxZ ) maxZ = z; + + } + + this.min.set( minX, minY, minZ ); + this.max.set( maxX, maxY, maxZ ); + + }, + + setFromPoints: function ( points ) { + + this.makeEmpty(); + + for ( var i = 0, il = points.length; i < il; i ++ ) { + + this.expandByPoint( points[ i ] ); + + } + + return this; + + }, + + setFromCenterAndSize: function () { + + var v1 = new Vector3(); + + return function setFromCenterAndSize( center, size ) { + + var halfSize = v1.copy( size ).multiplyScalar( 0.5 ); + + this.min.copy( center ).sub( halfSize ); + this.max.copy( center ).add( halfSize ); + + return this; + + }; + + }(), + + setFromObject: function () { + + // Computes the world-axis-aligned bounding box of an object (including its children), + // accounting for both the object's, and children's, world transforms + + var v1 = new Vector3(); + + return function setFromObject( object ) { + + var scope = this; + + object.updateMatrixWorld( true ); + + this.makeEmpty(); + + object.traverse( function ( node ) { + + var geometry = node.geometry; + + if ( geometry !== undefined ) { + + if ( (geometry && geometry.isGeometry) ) { + + var vertices = geometry.vertices; + + for ( var i = 0, il = vertices.length; i < il; i ++ ) { + + v1.copy( vertices[ i ] ); + v1.applyMatrix4( node.matrixWorld ); + + scope.expandByPoint( v1 ); + + } + + } else if ( (geometry && geometry.isBufferGeometry) ) { + + var attribute = geometry.attributes.position; + + if ( attribute !== undefined ) { + + var array, offset, stride; + + if ( (attribute && attribute.isInterleavedBufferAttribute) ) { + + array = attribute.data.array; + offset = attribute.offset; + stride = attribute.data.stride; + + } else { + + array = attribute.array; + offset = 0; + stride = 3; + + } + + for ( var i = offset, il = array.length; i < il; i += stride ) { + + v1.fromArray( array, i ); + v1.applyMatrix4( node.matrixWorld ); + + scope.expandByPoint( v1 ); + + } + + } + + } + + } + + } ); + + return this; + + }; + + }(), + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( box ) { + + this.min.copy( box.min ); + this.max.copy( box.max ); + + return this; + + }, + + makeEmpty: function () { + + this.min.x = this.min.y = this.min.z = + Infinity; + this.max.x = this.max.y = this.max.z = - Infinity; + + return this; + + }, + + isEmpty: function () { + + // this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes + + return ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z ); + + }, + + getCenter: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return this.isEmpty() ? result.set( 0, 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 ); + + }, + + getSize: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return this.isEmpty() ? result.set( 0, 0, 0 ) : result.subVectors( this.max, this.min ); + + }, + + expandByPoint: function ( point ) { + + this.min.min( point ); + this.max.max( point ); + + return this; + + }, + + expandByVector: function ( vector ) { + + this.min.sub( vector ); + this.max.add( vector ); + + return this; + + }, + + expandByScalar: function ( scalar ) { + + this.min.addScalar( - scalar ); + this.max.addScalar( scalar ); + + return this; + + }, + + containsPoint: function ( point ) { + + if ( point.x < this.min.x || point.x > this.max.x || + point.y < this.min.y || point.y > this.max.y || + point.z < this.min.z || point.z > this.max.z ) { + + return false; + + } + + return true; + + }, + + containsBox: function ( box ) { + + if ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) && + ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) && + ( this.min.z <= box.min.z ) && ( box.max.z <= this.max.z ) ) { + + return true; + + } + + return false; + + }, + + getParameter: function ( point, optionalTarget ) { + + // This can potentially have a divide by zero if the box + // has a size dimension of 0. + + var result = optionalTarget || new Vector3(); + + return result.set( + ( point.x - this.min.x ) / ( this.max.x - this.min.x ), + ( point.y - this.min.y ) / ( this.max.y - this.min.y ), + ( point.z - this.min.z ) / ( this.max.z - this.min.z ) + ); + + }, + + intersectsBox: function ( box ) { + + // using 6 splitting planes to rule out intersections. + + if ( box.max.x < this.min.x || box.min.x > this.max.x || + box.max.y < this.min.y || box.min.y > this.max.y || + box.max.z < this.min.z || box.min.z > this.max.z ) { + + return false; + + } + + return true; + + }, + + intersectsSphere: ( function () { + + var closestPoint; + + return function intersectsSphere( sphere ) { + + if ( closestPoint === undefined ) closestPoint = new Vector3(); + + // Find the point on the AABB closest to the sphere center. + this.clampPoint( sphere.center, closestPoint ); + + // If that point is inside the sphere, the AABB and sphere intersect. + return closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius ); + + }; + + } )(), + + intersectsPlane: function ( plane ) { + + // We compute the minimum and maximum dot product values. If those values + // are on the same side (back or front) of the plane, then there is no intersection. + + var min, max; + + if ( plane.normal.x > 0 ) { + + min = plane.normal.x * this.min.x; + max = plane.normal.x * this.max.x; + + } else { + + min = plane.normal.x * this.max.x; + max = plane.normal.x * this.min.x; + + } + + if ( plane.normal.y > 0 ) { + + min += plane.normal.y * this.min.y; + max += plane.normal.y * this.max.y; + + } else { + + min += plane.normal.y * this.max.y; + max += plane.normal.y * this.min.y; + + } + + if ( plane.normal.z > 0 ) { + + min += plane.normal.z * this.min.z; + max += plane.normal.z * this.max.z; + + } else { + + min += plane.normal.z * this.max.z; + max += plane.normal.z * this.min.z; + + } + + return ( min <= plane.constant && max >= plane.constant ); + + }, + + clampPoint: function ( point, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return result.copy( point ).clamp( this.min, this.max ); + + }, + + distanceToPoint: function () { + + var v1 = new Vector3(); + + return function distanceToPoint( point ) { + + var clampedPoint = v1.copy( point ).clamp( this.min, this.max ); + return clampedPoint.sub( point ).length(); + + }; + + }(), + + getBoundingSphere: function () { + + var v1 = new Vector3(); + + return function getBoundingSphere( optionalTarget ) { + + var result = optionalTarget || new Sphere(); + + this.getCenter( result.center ); + + result.radius = this.getSize( v1 ).length() * 0.5; + + return result; + + }; + + }(), + + intersect: function ( box ) { + + this.min.max( box.min ); + this.max.min( box.max ); + + // ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values. + if( this.isEmpty() ) this.makeEmpty(); + + return this; + + }, + + union: function ( box ) { + + this.min.min( box.min ); + this.max.max( box.max ); + + return this; + + }, + + applyMatrix4: function () { + + var points = [ + new Vector3(), + new Vector3(), + new Vector3(), + new Vector3(), + new Vector3(), + new Vector3(), + new Vector3(), + new Vector3() + ]; + + return function applyMatrix4( matrix ) { + + // transform of empty box is an empty box. + if( this.isEmpty() ) return this; + + // NOTE: I am using a binary pattern to specify all 2^3 combinations below + points[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000 + points[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001 + points[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010 + points[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011 + points[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100 + points[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101 + points[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110 + points[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 111 + + this.setFromPoints( points ); + + return this; + + }; + + }(), + + translate: function ( offset ) { + + this.min.add( offset ); + this.max.add( offset ); + + return this; + + }, + + equals: function ( box ) { + + return box.min.equals( this.min ) && box.max.equals( this.max ); + + } + + }; + + /** + * @author bhouston / http://clara.io + * @author mrdoob / http://mrdoob.com/ + */ + + function Sphere( center, radius ) { + + this.center = ( center !== undefined ) ? center : new Vector3(); + this.radius = ( radius !== undefined ) ? radius : 0; + + } + + Sphere.prototype = { + + constructor: Sphere, + + set: function ( center, radius ) { + + this.center.copy( center ); + this.radius = radius; + + return this; + + }, + + setFromPoints: function () { + + var box = new Box3(); + + return function setFromPoints( points, optionalCenter ) { + + var center = this.center; + + if ( optionalCenter !== undefined ) { + + center.copy( optionalCenter ); + + } else { + + box.setFromPoints( points ).getCenter( center ); + + } + + var maxRadiusSq = 0; + + for ( var i = 0, il = points.length; i < il; i ++ ) { + + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) ); + + } + + this.radius = Math.sqrt( maxRadiusSq ); + + return this; + + }; + + }(), + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( sphere ) { + + this.center.copy( sphere.center ); + this.radius = sphere.radius; + + return this; + + }, + + empty: function () { + + return ( this.radius <= 0 ); + + }, + + containsPoint: function ( point ) { + + return ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) ); + + }, + + distanceToPoint: function ( point ) { + + return ( point.distanceTo( this.center ) - this.radius ); + + }, + + intersectsSphere: function ( sphere ) { + + var radiusSum = this.radius + sphere.radius; + + return sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum ); + + }, + + intersectsBox: function ( box ) { + + return box.intersectsSphere( this ); + + }, + + intersectsPlane: function ( plane ) { + + // We use the following equation to compute the signed distance from + // the center of the sphere to the plane. + // + // distance = q * n - d + // + // If this distance is greater than the radius of the sphere, + // then there is no intersection. + + return Math.abs( this.center.dot( plane.normal ) - plane.constant ) <= this.radius; + + }, + + clampPoint: function ( point, optionalTarget ) { + + var deltaLengthSq = this.center.distanceToSquared( point ); + + var result = optionalTarget || new Vector3(); + + result.copy( point ); + + if ( deltaLengthSq > ( this.radius * this.radius ) ) { + + result.sub( this.center ).normalize(); + result.multiplyScalar( this.radius ).add( this.center ); + + } + + return result; + + }, + + getBoundingBox: function ( optionalTarget ) { + + var box = optionalTarget || new Box3(); + + box.set( this.center, this.center ); + box.expandByScalar( this.radius ); + + return box; + + }, + + applyMatrix4: function ( matrix ) { + + this.center.applyMatrix4( matrix ); + this.radius = this.radius * matrix.getMaxScaleOnAxis(); + + return this; + + }, + + translate: function ( offset ) { + + this.center.add( offset ); + + return this; + + }, + + equals: function ( sphere ) { + + return sphere.center.equals( this.center ) && ( sphere.radius === this.radius ); + + } + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author WestLangley / http://github.com/WestLangley + * @author bhouston / http://clara.io + * @author tschw + */ + + function Matrix3() { + + this.elements = new Float32Array( [ + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ] ); + + if ( arguments.length > 0 ) { + + console.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' ); + + } + + } + + Matrix3.prototype = { + + constructor: Matrix3, + + isMatrix3: true, + + set: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) { + + var te = this.elements; + + te[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31; + te[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32; + te[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33; + + return this; + + }, + + identity: function () { + + this.set( + + 1, 0, 0, + 0, 1, 0, + 0, 0, 1 + + ); + + return this; + + }, + + clone: function () { + + return new this.constructor().fromArray( this.elements ); + + }, + + copy: function ( m ) { + + var me = m.elements; + + this.set( + + me[ 0 ], me[ 3 ], me[ 6 ], + me[ 1 ], me[ 4 ], me[ 7 ], + me[ 2 ], me[ 5 ], me[ 8 ] + + ); + + return this; + + }, + + setFromMatrix4: function( m ) { + + var me = m.elements; + + this.set( + + me[ 0 ], me[ 4 ], me[ 8 ], + me[ 1 ], me[ 5 ], me[ 9 ], + me[ 2 ], me[ 6 ], me[ 10 ] + + ); + + return this; + + }, + + applyToVector3Array: function () { + + var v1; + + return function applyToVector3Array( array, offset, length ) { + + if ( v1 === undefined ) v1 = new Vector3(); + if ( offset === undefined ) offset = 0; + if ( length === undefined ) length = array.length; + + for ( var i = 0, j = offset; i < length; i += 3, j += 3 ) { + + v1.fromArray( array, j ); + v1.applyMatrix3( this ); + v1.toArray( array, j ); + + } + + return array; + + }; + + }(), + + applyToBuffer: function () { + + var v1; + + return function applyToBuffer( buffer, offset, length ) { + + if ( v1 === undefined ) v1 = new Vector3(); + if ( offset === undefined ) offset = 0; + if ( length === undefined ) length = buffer.length / buffer.itemSize; + + for ( var i = 0, j = offset; i < length; i ++, j ++ ) { + + v1.x = buffer.getX( j ); + v1.y = buffer.getY( j ); + v1.z = buffer.getZ( j ); + + v1.applyMatrix3( this ); + + buffer.setXYZ( j, v1.x, v1.y, v1.z ); + + } + + return buffer; + + }; + + }(), + + multiplyScalar: function ( s ) { + + var te = this.elements; + + te[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s; + te[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s; + te[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s; + + return this; + + }, + + determinant: function () { + + var te = this.elements; + + var a = te[ 0 ], b = te[ 1 ], c = te[ 2 ], + d = te[ 3 ], e = te[ 4 ], f = te[ 5 ], + g = te[ 6 ], h = te[ 7 ], i = te[ 8 ]; + + return a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g; + + }, + + getInverse: function ( matrix, throwOnDegenerate ) { + + if ( (matrix && matrix.isMatrix4) ) { + + console.error( "THREE.Matrix3.getInverse no longer takes a Matrix4 argument." ); + + } + + var me = matrix.elements, + te = this.elements, + + n11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], + n12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ], + n13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ], + + t11 = n33 * n22 - n32 * n23, + t12 = n32 * n13 - n33 * n12, + t13 = n23 * n12 - n22 * n13, + + det = n11 * t11 + n21 * t12 + n31 * t13; + + if ( det === 0 ) { + + var msg = "THREE.Matrix3.getInverse(): can't invert matrix, determinant is 0"; + + if ( throwOnDegenerate === true ) { + + throw new Error( msg ); + + } else { + + console.warn( msg ); + + } + + return this.identity(); + } + + var detInv = 1 / det; + + te[ 0 ] = t11 * detInv; + te[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv; + te[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv; + + te[ 3 ] = t12 * detInv; + te[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv; + te[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv; + + te[ 6 ] = t13 * detInv; + te[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv; + te[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv; + + return this; + + }, + + transpose: function () { + + var tmp, m = this.elements; + + tmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp; + tmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp; + tmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp; + + return this; + + }, + + flattenToArrayOffset: function ( array, offset ) { + + console.warn( "THREE.Matrix3: .flattenToArrayOffset is deprecated " + + "- just use .toArray instead." ); + + return this.toArray( array, offset ); + + }, + + getNormalMatrix: function ( matrix4 ) { + + return this.setFromMatrix4( matrix4 ).getInverse( this ).transpose(); + + }, + + transposeIntoArray: function ( r ) { + + var m = this.elements; + + r[ 0 ] = m[ 0 ]; + r[ 1 ] = m[ 3 ]; + r[ 2 ] = m[ 6 ]; + r[ 3 ] = m[ 1 ]; + r[ 4 ] = m[ 4 ]; + r[ 5 ] = m[ 7 ]; + r[ 6 ] = m[ 2 ]; + r[ 7 ] = m[ 5 ]; + r[ 8 ] = m[ 8 ]; + + return this; + + }, + + fromArray: function ( array, offset ) { + + if ( offset === undefined ) offset = 0; + + for( var i = 0; i < 9; i ++ ) { + + this.elements[ i ] = array[ i + offset ]; + + } + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + var te = this.elements; + + array[ offset ] = te[ 0 ]; + array[ offset + 1 ] = te[ 1 ]; + array[ offset + 2 ] = te[ 2 ]; + + array[ offset + 3 ] = te[ 3 ]; + array[ offset + 4 ] = te[ 4 ]; + array[ offset + 5 ] = te[ 5 ]; + + array[ offset + 6 ] = te[ 6 ]; + array[ offset + 7 ] = te[ 7 ]; + array[ offset + 8 ] = te[ 8 ]; + + return array; + + } + + }; + + /** + * @author bhouston / http://clara.io + */ + + function Plane( normal, constant ) { + + this.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 ); + this.constant = ( constant !== undefined ) ? constant : 0; + + } + + Plane.prototype = { + + constructor: Plane, + + set: function ( normal, constant ) { + + this.normal.copy( normal ); + this.constant = constant; + + return this; + + }, + + setComponents: function ( x, y, z, w ) { + + this.normal.set( x, y, z ); + this.constant = w; + + return this; + + }, + + setFromNormalAndCoplanarPoint: function ( normal, point ) { + + this.normal.copy( normal ); + this.constant = - point.dot( this.normal ); // must be this.normal, not normal, as this.normal is normalized + + return this; + + }, + + setFromCoplanarPoints: function () { + + var v1 = new Vector3(); + var v2 = new Vector3(); + + return function setFromCoplanarPoints( a, b, c ) { + + var normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize(); + + // Q: should an error be thrown if normal is zero (e.g. degenerate plane)? + + this.setFromNormalAndCoplanarPoint( normal, a ); + + return this; + + }; + + }(), + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( plane ) { + + this.normal.copy( plane.normal ); + this.constant = plane.constant; + + return this; + + }, + + normalize: function () { + + // Note: will lead to a divide by zero if the plane is invalid. + + var inverseNormalLength = 1.0 / this.normal.length(); + this.normal.multiplyScalar( inverseNormalLength ); + this.constant *= inverseNormalLength; + + return this; + + }, + + negate: function () { + + this.constant *= - 1; + this.normal.negate(); + + return this; + + }, + + distanceToPoint: function ( point ) { + + return this.normal.dot( point ) + this.constant; + + }, + + distanceToSphere: function ( sphere ) { + + return this.distanceToPoint( sphere.center ) - sphere.radius; + + }, + + projectPoint: function ( point, optionalTarget ) { + + return this.orthoPoint( point, optionalTarget ).sub( point ).negate(); + + }, + + orthoPoint: function ( point, optionalTarget ) { + + var perpendicularMagnitude = this.distanceToPoint( point ); + + var result = optionalTarget || new Vector3(); + return result.copy( this.normal ).multiplyScalar( perpendicularMagnitude ); + + }, + + intersectLine: function () { + + var v1 = new Vector3(); + + return function intersectLine( line, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + var direction = line.delta( v1 ); + + var denominator = this.normal.dot( direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( this.distanceToPoint( line.start ) === 0 ) { + + return result.copy( line.start ); + + } + + // Unsure if this is the correct method to handle this case. + return undefined; + + } + + var t = - ( line.start.dot( this.normal ) + this.constant ) / denominator; + + if ( t < 0 || t > 1 ) { + + return undefined; + + } + + return result.copy( direction ).multiplyScalar( t ).add( line.start ); + + }; + + }(), + + intersectsLine: function ( line ) { + + // Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it. + + var startSign = this.distanceToPoint( line.start ); + var endSign = this.distanceToPoint( line.end ); + + return ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 ); + + }, + + intersectsBox: function ( box ) { + + return box.intersectsPlane( this ); + + }, + + intersectsSphere: function ( sphere ) { + + return sphere.intersectsPlane( this ); + + }, + + coplanarPoint: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return result.copy( this.normal ).multiplyScalar( - this.constant ); + + }, + + applyMatrix4: function () { + + var v1 = new Vector3(); + var m1 = new Matrix3(); + + return function applyMatrix4( matrix, optionalNormalMatrix ) { + + var referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix ); + + // transform normal based on theory here: + // http://www.songho.ca/opengl/gl_normaltransform.html + var normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix ); + var normal = this.normal.applyMatrix3( normalMatrix ).normalize(); + + // recalculate constant (like in setFromNormalAndCoplanarPoint) + this.constant = - referencePoint.dot( normal ); + + return this; + + }; + + }(), + + translate: function ( offset ) { + + this.constant = this.constant - offset.dot( this.normal ); + + return this; + + }, + + equals: function ( plane ) { + + return plane.normal.equals( this.normal ) && ( plane.constant === this.constant ); + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * @author bhouston / http://clara.io + */ + + function Frustum( p0, p1, p2, p3, p4, p5 ) { + + this.planes = [ + + ( p0 !== undefined ) ? p0 : new Plane(), + ( p1 !== undefined ) ? p1 : new Plane(), + ( p2 !== undefined ) ? p2 : new Plane(), + ( p3 !== undefined ) ? p3 : new Plane(), + ( p4 !== undefined ) ? p4 : new Plane(), + ( p5 !== undefined ) ? p5 : new Plane() + + ]; + + } + + Frustum.prototype = { + + constructor: Frustum, + + set: function ( p0, p1, p2, p3, p4, p5 ) { + + var planes = this.planes; + + planes[ 0 ].copy( p0 ); + planes[ 1 ].copy( p1 ); + planes[ 2 ].copy( p2 ); + planes[ 3 ].copy( p3 ); + planes[ 4 ].copy( p4 ); + planes[ 5 ].copy( p5 ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( frustum ) { + + var planes = this.planes; + + for ( var i = 0; i < 6; i ++ ) { + + planes[ i ].copy( frustum.planes[ i ] ); + + } + + return this; + + }, + + setFromMatrix: function ( m ) { + + var planes = this.planes; + var me = m.elements; + var me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ]; + var me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ]; + var me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ]; + var me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ]; + + planes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize(); + planes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize(); + planes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize(); + planes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize(); + planes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize(); + planes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize(); + + return this; + + }, + + intersectsObject: function () { + + var sphere = new Sphere(); + + return function intersectsObject( object ) { + + var geometry = object.geometry; + + if ( geometry.boundingSphere === null ) + geometry.computeBoundingSphere(); + + sphere.copy( geometry.boundingSphere ) + .applyMatrix4( object.matrixWorld ); + + return this.intersectsSphere( sphere ); + + }; + + }(), + + intersectsSprite: function () { + + var sphere = new Sphere(); + + return function intersectsSprite( sprite ) { + + sphere.center.set( 0, 0, 0 ); + sphere.radius = 0.7071067811865476; + sphere.applyMatrix4( sprite.matrixWorld ); + + return this.intersectsSphere( sphere ); + + }; + + }(), + + intersectsSphere: function ( sphere ) { + + var planes = this.planes; + var center = sphere.center; + var negRadius = - sphere.radius; + + for ( var i = 0; i < 6; i ++ ) { + + var distance = planes[ i ].distanceToPoint( center ); + + if ( distance < negRadius ) { + + return false; + + } + + } + + return true; + + }, + + intersectsBox: function () { + + var p1 = new Vector3(), + p2 = new Vector3(); + + return function intersectsBox( box ) { + + var planes = this.planes; + + for ( var i = 0; i < 6 ; i ++ ) { + + var plane = planes[ i ]; + + p1.x = plane.normal.x > 0 ? box.min.x : box.max.x; + p2.x = plane.normal.x > 0 ? box.max.x : box.min.x; + p1.y = plane.normal.y > 0 ? box.min.y : box.max.y; + p2.y = plane.normal.y > 0 ? box.max.y : box.min.y; + p1.z = plane.normal.z > 0 ? box.min.z : box.max.z; + p2.z = plane.normal.z > 0 ? box.max.z : box.min.z; + + var d1 = plane.distanceToPoint( p1 ); + var d2 = plane.distanceToPoint( p2 ); + + // if both outside plane, no intersection + + if ( d1 < 0 && d2 < 0 ) { + + return false; + + } + + } + + return true; + + }; + + }(), + + + containsPoint: function ( point ) { + + var planes = this.planes; + + for ( var i = 0; i < 6; i ++ ) { + + if ( planes[ i ].distanceToPoint( point ) < 0 ) { + + return false; + + } + + } + + return true; + + } + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLShadowMap( _renderer, _lights, _objects, capabilities ) { + + var _gl = _renderer.context, + _state = _renderer.state, + _frustum = new Frustum(), + _projScreenMatrix = new Matrix4(), + + _lightShadows = _lights.shadows, + + _shadowMapSize = new Vector2(), + _maxShadowMapSize = new Vector2( capabilities.maxTextureSize, capabilities.maxTextureSize ), + + _lookTarget = new Vector3(), + _lightPositionWorld = new Vector3(), + + _renderList = [], + + _MorphingFlag = 1, + _SkinningFlag = 2, + + _NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1, + + _depthMaterials = new Array( _NumberOfMaterialVariants ), + _distanceMaterials = new Array( _NumberOfMaterialVariants ), + + _materialCache = {}; + + var cubeDirections = [ + new Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ), + new Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 ) + ]; + + var cubeUps = [ + new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), + new Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ), new Vector3( 0, 0, - 1 ) + ]; + + var cube2DViewPorts = [ + new Vector4(), new Vector4(), new Vector4(), + new Vector4(), new Vector4(), new Vector4() + ]; + + // init + + var depthMaterialTemplate = new MeshDepthMaterial(); + depthMaterialTemplate.depthPacking = RGBADepthPacking; + depthMaterialTemplate.clipping = true; + + var distanceShader = ShaderLib[ "distanceRGBA" ]; + var distanceUniforms = UniformsUtils.clone( distanceShader.uniforms ); + + for ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) { + + var useMorphing = ( i & _MorphingFlag ) !== 0; + var useSkinning = ( i & _SkinningFlag ) !== 0; + + var depthMaterial = depthMaterialTemplate.clone(); + depthMaterial.morphTargets = useMorphing; + depthMaterial.skinning = useSkinning; + + _depthMaterials[ i ] = depthMaterial; + + var distanceMaterial = new ShaderMaterial( { + defines: { + 'USE_SHADOWMAP': '' + }, + uniforms: distanceUniforms, + vertexShader: distanceShader.vertexShader, + fragmentShader: distanceShader.fragmentShader, + morphTargets: useMorphing, + skinning: useSkinning, + clipping: true + } ); + + _distanceMaterials[ i ] = distanceMaterial; + + } + + // + + var scope = this; + + this.enabled = false; + + this.autoUpdate = true; + this.needsUpdate = false; + + this.type = PCFShadowMap; + + this.renderReverseSided = true; + this.renderSingleSided = true; + + this.render = function ( scene, camera ) { + + if ( scope.enabled === false ) return; + if ( scope.autoUpdate === false && scope.needsUpdate === false ) return; + + if ( _lightShadows.length === 0 ) return; + + // Set GL state for depth map. + _state.clearColor( 1, 1, 1, 1 ); + _state.disable( _gl.BLEND ); + _state.setDepthTest( true ); + _state.setScissorTest( false ); + + // render depth map + + var faceCount, isPointLight; + + for ( var i = 0, il = _lightShadows.length; i < il; i ++ ) { + + var light = _lightShadows[ i ]; + var shadow = light.shadow; + + if ( shadow === undefined ) { + + console.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' ); + continue; + + } + + var shadowCamera = shadow.camera; + + _shadowMapSize.copy( shadow.mapSize ); + _shadowMapSize.min( _maxShadowMapSize ); + + if ( (light && light.isPointLight) ) { + + faceCount = 6; + isPointLight = true; + + var vpWidth = _shadowMapSize.x; + var vpHeight = _shadowMapSize.y; + + // These viewports map a cube-map onto a 2D texture with the + // following orientation: + // + // xzXZ + // y Y + // + // X - Positive x direction + // x - Negative x direction + // Y - Positive y direction + // y - Negative y direction + // Z - Positive z direction + // z - Negative z direction + + // positive X + cube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight ); + // negative X + cube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight ); + // positive Z + cube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight ); + // negative Z + cube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight ); + // positive Y + cube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight ); + // negative Y + cube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight ); + + _shadowMapSize.x *= 4.0; + _shadowMapSize.y *= 2.0; + + } else { + + faceCount = 1; + isPointLight = false; + + } + + if ( shadow.map === null ) { + + var pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat }; + + shadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars ); + + shadowCamera.updateProjectionMatrix(); + + } + + if ( (shadow && shadow.isSpotLightShadow) ) { + + shadow.update( light ); + + } + + var shadowMap = shadow.map; + var shadowMatrix = shadow.matrix; + + _lightPositionWorld.setFromMatrixPosition( light.matrixWorld ); + shadowCamera.position.copy( _lightPositionWorld ); + + _renderer.setRenderTarget( shadowMap ); + _renderer.clear(); + + // render shadow map for each cube face (if omni-directional) or + // run a single pass if not + + for ( var face = 0; face < faceCount; face ++ ) { + + if ( isPointLight ) { + + _lookTarget.copy( shadowCamera.position ); + _lookTarget.add( cubeDirections[ face ] ); + shadowCamera.up.copy( cubeUps[ face ] ); + shadowCamera.lookAt( _lookTarget ); + + var vpDimensions = cube2DViewPorts[ face ]; + _state.viewport( vpDimensions ); + + } else { + + _lookTarget.setFromMatrixPosition( light.target.matrixWorld ); + shadowCamera.lookAt( _lookTarget ); + + } + + shadowCamera.updateMatrixWorld(); + shadowCamera.matrixWorldInverse.getInverse( shadowCamera.matrixWorld ); + + // compute shadow matrix + + shadowMatrix.set( + 0.5, 0.0, 0.0, 0.5, + 0.0, 0.5, 0.0, 0.5, + 0.0, 0.0, 0.5, 0.5, + 0.0, 0.0, 0.0, 1.0 + ); + + shadowMatrix.multiply( shadowCamera.projectionMatrix ); + shadowMatrix.multiply( shadowCamera.matrixWorldInverse ); + + // update camera matrices and frustum + + _projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse ); + _frustum.setFromMatrix( _projScreenMatrix ); + + // set object matrices & frustum culling + + _renderList.length = 0; + + projectObject( scene, camera, shadowCamera ); + + // render shadow map + // render regular objects + + for ( var j = 0, jl = _renderList.length; j < jl; j ++ ) { + + var object = _renderList[ j ]; + var geometry = _objects.update( object ); + var material = object.material; + + if ( (material && material.isMultiMaterial) ) { + + var groups = geometry.groups; + var materials = material.materials; + + for ( var k = 0, kl = groups.length; k < kl; k ++ ) { + + var group = groups[ k ]; + var groupMaterial = materials[ group.materialIndex ]; + + if ( groupMaterial.visible === true ) { + + var depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld ); + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group ); + + } + + } + + } else { + + var depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld ); + _renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null ); + + } + + } + + } + + } + + // Restore GL state. + var clearColor = _renderer.getClearColor(), + clearAlpha = _renderer.getClearAlpha(); + _renderer.setClearColor( clearColor, clearAlpha ); + + scope.needsUpdate = false; + + }; + + function getDepthMaterial( object, material, isPointLight, lightPositionWorld ) { + + var geometry = object.geometry; + + var result = null; + + var materialVariants = _depthMaterials; + var customMaterial = object.customDepthMaterial; + + if ( isPointLight ) { + + materialVariants = _distanceMaterials; + customMaterial = object.customDistanceMaterial; + + } + + if ( ! customMaterial ) { + + var useMorphing = false; + + if ( material.morphTargets ) { + + if ( (geometry && geometry.isBufferGeometry) ) { + + useMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0; + + } else if ( (geometry && geometry.isGeometry) ) { + + useMorphing = geometry.morphTargets && geometry.morphTargets.length > 0; + + } + + } + + var useSkinning = object.isSkinnedMesh && material.skinning; + + var variantIndex = 0; + + if ( useMorphing ) variantIndex |= _MorphingFlag; + if ( useSkinning ) variantIndex |= _SkinningFlag; + + result = materialVariants[ variantIndex ]; + + } else { + + result = customMaterial; + + } + + if ( _renderer.localClippingEnabled && + material.clipShadows === true && + material.clippingPlanes.length !== 0 ) { + + // in this case we need a unique material instance reflecting the + // appropriate state + + var keyA = result.uuid, keyB = material.uuid; + + var materialsForVariant = _materialCache[ keyA ]; + + if ( materialsForVariant === undefined ) { + + materialsForVariant = {}; + _materialCache[ keyA ] = materialsForVariant; + + } + + var cachedMaterial = materialsForVariant[ keyB ]; + + if ( cachedMaterial === undefined ) { + + cachedMaterial = result.clone(); + materialsForVariant[ keyB ] = cachedMaterial; + + } + + result = cachedMaterial; + + } + + result.visible = material.visible; + result.wireframe = material.wireframe; + + var side = material.side; + + if ( scope.renderSingleSided && side == DoubleSide ) { + + side = FrontSide; + + } + + if ( scope.renderReverseSided ) { + + if ( side === FrontSide ) side = BackSide; + else if ( side === BackSide ) side = FrontSide; + + } + + result.side = side; + + result.clipShadows = material.clipShadows; + result.clippingPlanes = material.clippingPlanes; + + result.wireframeLinewidth = material.wireframeLinewidth; + result.linewidth = material.linewidth; + + if ( isPointLight && result.uniforms.lightPos !== undefined ) { + + result.uniforms.lightPos.value.copy( lightPositionWorld ); + + } + + return result; + + } + + function projectObject( object, camera, shadowCamera ) { + + if ( object.visible === false ) return; + + var visible = ( object.layers.mask & camera.layers.mask ) !== 0; + + if ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) { + + if ( object.castShadow && ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) ) { + + var material = object.material; + + if ( material.visible === true ) { + + object.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld ); + _renderList.push( object ); + + } + + } + + } + + var children = object.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + projectObject( children[ i ], camera, shadowCamera ); + + } + + } + + } + + /** + * @author bhouston / http://clara.io + */ + + function Ray( origin, direction ) { + + this.origin = ( origin !== undefined ) ? origin : new Vector3(); + this.direction = ( direction !== undefined ) ? direction : new Vector3(); + + } + + Ray.prototype = { + + constructor: Ray, + + set: function ( origin, direction ) { + + this.origin.copy( origin ); + this.direction.copy( direction ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( ray ) { + + this.origin.copy( ray.origin ); + this.direction.copy( ray.direction ); + + return this; + + }, + + at: function ( t, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + return result.copy( this.direction ).multiplyScalar( t ).add( this.origin ); + + }, + + lookAt: function ( v ) { + + this.direction.copy( v ).sub( this.origin ).normalize(); + + return this; + + }, + + recast: function () { + + var v1 = new Vector3(); + + return function recast( t ) { + + this.origin.copy( this.at( t, v1 ) ); + + return this; + + }; + + }(), + + closestPointToPoint: function ( point, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + result.subVectors( point, this.origin ); + var directionDistance = result.dot( this.direction ); + + if ( directionDistance < 0 ) { + + return result.copy( this.origin ); + + } + + return result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + }, + + distanceToPoint: function ( point ) { + + return Math.sqrt( this.distanceSqToPoint( point ) ); + + }, + + distanceSqToPoint: function () { + + var v1 = new Vector3(); + + return function distanceSqToPoint( point ) { + + var directionDistance = v1.subVectors( point, this.origin ).dot( this.direction ); + + // point behind the ray + + if ( directionDistance < 0 ) { + + return this.origin.distanceToSquared( point ); + + } + + v1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin ); + + return v1.distanceToSquared( point ); + + }; + + }(), + + distanceSqToSegment: function () { + + var segCenter = new Vector3(); + var segDir = new Vector3(); + var diff = new Vector3(); + + return function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) { + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h + // It returns the min distance between the ray and the segment + // defined by v0 and v1 + // It can also set two optional targets : + // - The closest point on the ray + // - The closest point on the segment + + segCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 ); + segDir.copy( v1 ).sub( v0 ).normalize(); + diff.copy( this.origin ).sub( segCenter ); + + var segExtent = v0.distanceTo( v1 ) * 0.5; + var a01 = - this.direction.dot( segDir ); + var b0 = diff.dot( this.direction ); + var b1 = - diff.dot( segDir ); + var c = diff.lengthSq(); + var det = Math.abs( 1 - a01 * a01 ); + var s0, s1, sqrDist, extDet; + + if ( det > 0 ) { + + // The ray and segment are not parallel. + + s0 = a01 * b1 - b0; + s1 = a01 * b0 - b1; + extDet = segExtent * det; + + if ( s0 >= 0 ) { + + if ( s1 >= - extDet ) { + + if ( s1 <= extDet ) { + + // region 0 + // Minimum at interior points of ray and segment. + + var invDet = 1 / det; + s0 *= invDet; + s1 *= invDet; + sqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c; + + } else { + + // region 1 + + s1 = segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + // region 5 + + s1 = - segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } else { + + if ( s1 <= - extDet ) { + + // region 4 + + s0 = Math.max( 0, - ( - a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } else if ( s1 <= extDet ) { + + // region 3 + + s0 = 0; + s1 = Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = s1 * ( s1 + 2 * b1 ) + c; + + } else { + + // region 2 + + s0 = Math.max( 0, - ( a01 * segExtent + b0 ) ); + s1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + } + + } else { + + // Ray and segment are parallel. + + s1 = ( a01 > 0 ) ? - segExtent : segExtent; + s0 = Math.max( 0, - ( a01 * s1 + b0 ) ); + sqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c; + + } + + if ( optionalPointOnRay ) { + + optionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin ); + + } + + if ( optionalPointOnSegment ) { + + optionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter ); + + } + + return sqrDist; + + }; + + }(), + + intersectSphere: function () { + + var v1 = new Vector3(); + + return function intersectSphere( sphere, optionalTarget ) { + + v1.subVectors( sphere.center, this.origin ); + var tca = v1.dot( this.direction ); + var d2 = v1.dot( v1 ) - tca * tca; + var radius2 = sphere.radius * sphere.radius; + + if ( d2 > radius2 ) return null; + + var thc = Math.sqrt( radius2 - d2 ); + + // t0 = first intersect point - entrance on front of sphere + var t0 = tca - thc; + + // t1 = second intersect point - exit point on back of sphere + var t1 = tca + thc; + + // test to see if both t0 and t1 are behind the ray - if so, return null + if ( t0 < 0 && t1 < 0 ) return null; + + // test to see if t0 is behind the ray: + // if it is, the ray is inside the sphere, so return the second exit point scaled by t1, + // in order to always return an intersect point that is in front of the ray. + if ( t0 < 0 ) return this.at( t1, optionalTarget ); + + // else t0 is in front of the ray, so return the first collision point scaled by t0 + return this.at( t0, optionalTarget ); + + }; + + }(), + + intersectsSphere: function ( sphere ) { + + return this.distanceToPoint( sphere.center ) <= sphere.radius; + + }, + + distanceToPlane: function ( plane ) { + + var denominator = plane.normal.dot( this.direction ); + + if ( denominator === 0 ) { + + // line is coplanar, return origin + if ( plane.distanceToPoint( this.origin ) === 0 ) { + + return 0; + + } + + // Null is preferable to undefined since undefined means.... it is undefined + + return null; + + } + + var t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator; + + // Return if the ray never intersects the plane + + return t >= 0 ? t : null; + + }, + + intersectPlane: function ( plane, optionalTarget ) { + + var t = this.distanceToPlane( plane ); + + if ( t === null ) { + + return null; + + } + + return this.at( t, optionalTarget ); + + }, + + + + intersectsPlane: function ( plane ) { + + // check if the ray lies on the plane first + + var distToPoint = plane.distanceToPoint( this.origin ); + + if ( distToPoint === 0 ) { + + return true; + + } + + var denominator = plane.normal.dot( this.direction ); + + if ( denominator * distToPoint < 0 ) { + + return true; + + } + + // ray origin is behind the plane (and is pointing behind it) + + return false; + + }, + + intersectBox: function ( box, optionalTarget ) { + + var tmin, tmax, tymin, tymax, tzmin, tzmax; + + var invdirx = 1 / this.direction.x, + invdiry = 1 / this.direction.y, + invdirz = 1 / this.direction.z; + + var origin = this.origin; + + if ( invdirx >= 0 ) { + + tmin = ( box.min.x - origin.x ) * invdirx; + tmax = ( box.max.x - origin.x ) * invdirx; + + } else { + + tmin = ( box.max.x - origin.x ) * invdirx; + tmax = ( box.min.x - origin.x ) * invdirx; + + } + + if ( invdiry >= 0 ) { + + tymin = ( box.min.y - origin.y ) * invdiry; + tymax = ( box.max.y - origin.y ) * invdiry; + + } else { + + tymin = ( box.max.y - origin.y ) * invdiry; + tymax = ( box.min.y - origin.y ) * invdiry; + + } + + if ( ( tmin > tymax ) || ( tymin > tmax ) ) return null; + + // These lines also handle the case where tmin or tmax is NaN + // (result of 0 * Infinity). x !== x returns true if x is NaN + + if ( tymin > tmin || tmin !== tmin ) tmin = tymin; + + if ( tymax < tmax || tmax !== tmax ) tmax = tymax; + + if ( invdirz >= 0 ) { + + tzmin = ( box.min.z - origin.z ) * invdirz; + tzmax = ( box.max.z - origin.z ) * invdirz; + + } else { + + tzmin = ( box.max.z - origin.z ) * invdirz; + tzmax = ( box.min.z - origin.z ) * invdirz; + + } + + if ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null; + + if ( tzmin > tmin || tmin !== tmin ) tmin = tzmin; + + if ( tzmax < tmax || tmax !== tmax ) tmax = tzmax; + + //return point closest to the ray (positive side) + + if ( tmax < 0 ) return null; + + return this.at( tmin >= 0 ? tmin : tmax, optionalTarget ); + + }, + + intersectsBox: ( function () { + + var v = new Vector3(); + + return function intersectsBox( box ) { + + return this.intersectBox( box, v ) !== null; + + }; + + } )(), + + intersectTriangle: function () { + + // Compute the offset origin, edges, and normal. + var diff = new Vector3(); + var edge1 = new Vector3(); + var edge2 = new Vector3(); + var normal = new Vector3(); + + return function intersectTriangle( a, b, c, backfaceCulling, optionalTarget ) { + + // from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h + + edge1.subVectors( b, a ); + edge2.subVectors( c, a ); + normal.crossVectors( edge1, edge2 ); + + // Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction, + // E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by + // |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2)) + // |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q)) + // |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N) + var DdN = this.direction.dot( normal ); + var sign; + + if ( DdN > 0 ) { + + if ( backfaceCulling ) return null; + sign = 1; + + } else if ( DdN < 0 ) { + + sign = - 1; + DdN = - DdN; + + } else { + + return null; + + } + + diff.subVectors( this.origin, a ); + var DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) ); + + // b1 < 0, no intersection + if ( DdQxE2 < 0 ) { + + return null; + + } + + var DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) ); + + // b2 < 0, no intersection + if ( DdE1xQ < 0 ) { + + return null; + + } + + // b1+b2 > 1, no intersection + if ( DdQxE2 + DdE1xQ > DdN ) { + + return null; + + } + + // Line intersects triangle, check if ray does. + var QdN = - sign * diff.dot( normal ); + + // t < 0, no intersection + if ( QdN < 0 ) { + + return null; + + } + + // Ray intersects triangle. + return this.at( QdN / DdN, optionalTarget ); + + }; + + }(), + + applyMatrix4: function ( matrix4 ) { + + this.direction.add( this.origin ).applyMatrix4( matrix4 ); + this.origin.applyMatrix4( matrix4 ); + this.direction.sub( this.origin ); + this.direction.normalize(); + + return this; + + }, + + equals: function ( ray ) { + + return ray.origin.equals( this.origin ) && ray.direction.equals( this.direction ); + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author WestLangley / http://github.com/WestLangley + * @author bhouston / http://clara.io + */ + + function Euler( x, y, z, order ) { + + this._x = x || 0; + this._y = y || 0; + this._z = z || 0; + this._order = order || Euler.DefaultOrder; + + } + + Euler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ]; + + Euler.DefaultOrder = 'XYZ'; + + Euler.prototype = { + + constructor: Euler, + + isEuler: true, + + get x () { + + return this._x; + + }, + + set x ( value ) { + + this._x = value; + this.onChangeCallback(); + + }, + + get y () { + + return this._y; + + }, + + set y ( value ) { + + this._y = value; + this.onChangeCallback(); + + }, + + get z () { + + return this._z; + + }, + + set z ( value ) { + + this._z = value; + this.onChangeCallback(); + + }, + + get order () { + + return this._order; + + }, + + set order ( value ) { + + this._order = value; + this.onChangeCallback(); + + }, + + set: function ( x, y, z, order ) { + + this._x = x; + this._y = y; + this._z = z; + this._order = order || this._order; + + this.onChangeCallback(); + + return this; + + }, + + clone: function () { + + return new this.constructor( this._x, this._y, this._z, this._order ); + + }, + + copy: function ( euler ) { + + this._x = euler._x; + this._y = euler._y; + this._z = euler._z; + this._order = euler._order; + + this.onChangeCallback(); + + return this; + + }, + + setFromRotationMatrix: function ( m, order, update ) { + + var clamp = _Math.clamp; + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + var te = m.elements; + var m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ]; + var m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ]; + var m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ]; + + order = order || this._order; + + if ( order === 'XYZ' ) { + + this._y = Math.asin( clamp( m13, - 1, 1 ) ); + + if ( Math.abs( m13 ) < 0.99999 ) { + + this._x = Math.atan2( - m23, m33 ); + this._z = Math.atan2( - m12, m11 ); + + } else { + + this._x = Math.atan2( m32, m22 ); + this._z = 0; + + } + + } else if ( order === 'YXZ' ) { + + this._x = Math.asin( - clamp( m23, - 1, 1 ) ); + + if ( Math.abs( m23 ) < 0.99999 ) { + + this._y = Math.atan2( m13, m33 ); + this._z = Math.atan2( m21, m22 ); + + } else { + + this._y = Math.atan2( - m31, m11 ); + this._z = 0; + + } + + } else if ( order === 'ZXY' ) { + + this._x = Math.asin( clamp( m32, - 1, 1 ) ); + + if ( Math.abs( m32 ) < 0.99999 ) { + + this._y = Math.atan2( - m31, m33 ); + this._z = Math.atan2( - m12, m22 ); + + } else { + + this._y = 0; + this._z = Math.atan2( m21, m11 ); + + } + + } else if ( order === 'ZYX' ) { + + this._y = Math.asin( - clamp( m31, - 1, 1 ) ); + + if ( Math.abs( m31 ) < 0.99999 ) { + + this._x = Math.atan2( m32, m33 ); + this._z = Math.atan2( m21, m11 ); + + } else { + + this._x = 0; + this._z = Math.atan2( - m12, m22 ); + + } + + } else if ( order === 'YZX' ) { + + this._z = Math.asin( clamp( m21, - 1, 1 ) ); + + if ( Math.abs( m21 ) < 0.99999 ) { + + this._x = Math.atan2( - m23, m22 ); + this._y = Math.atan2( - m31, m11 ); + + } else { + + this._x = 0; + this._y = Math.atan2( m13, m33 ); + + } + + } else if ( order === 'XZY' ) { + + this._z = Math.asin( - clamp( m12, - 1, 1 ) ); + + if ( Math.abs( m12 ) < 0.99999 ) { + + this._x = Math.atan2( m32, m22 ); + this._y = Math.atan2( m13, m11 ); + + } else { + + this._x = Math.atan2( - m23, m33 ); + this._y = 0; + + } + + } else { + + console.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order ); + + } + + this._order = order; + + if ( update !== false ) this.onChangeCallback(); + + return this; + + }, + + setFromQuaternion: function () { + + var matrix; + + return function setFromQuaternion( q, order, update ) { + + if ( matrix === undefined ) matrix = new Matrix4(); + + matrix.makeRotationFromQuaternion( q ); + + return this.setFromRotationMatrix( matrix, order, update ); + + }; + + }(), + + setFromVector3: function ( v, order ) { + + return this.set( v.x, v.y, v.z, order || this._order ); + + }, + + reorder: function () { + + // WARNING: this discards revolution information -bhouston + + var q = new Quaternion(); + + return function reorder( newOrder ) { + + q.setFromEuler( this ); + + return this.setFromQuaternion( q, newOrder ); + + }; + + }(), + + equals: function ( euler ) { + + return ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order ); + + }, + + fromArray: function ( array ) { + + this._x = array[ 0 ]; + this._y = array[ 1 ]; + this._z = array[ 2 ]; + if ( array[ 3 ] !== undefined ) this._order = array[ 3 ]; + + this.onChangeCallback(); + + return this; + + }, + + toArray: function ( array, offset ) { + + if ( array === undefined ) array = []; + if ( offset === undefined ) offset = 0; + + array[ offset ] = this._x; + array[ offset + 1 ] = this._y; + array[ offset + 2 ] = this._z; + array[ offset + 3 ] = this._order; + + return array; + + }, + + toVector3: function ( optionalResult ) { + + if ( optionalResult ) { + + return optionalResult.set( this._x, this._y, this._z ); + + } else { + + return new Vector3( this._x, this._y, this._z ); + + } + + }, + + onChange: function ( callback ) { + + this.onChangeCallback = callback; + + return this; + + }, + + onChangeCallback: function () {} + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Layers() { + + this.mask = 1; + + } + + Layers.prototype = { + + constructor: Layers, + + set: function ( channel ) { + + this.mask = 1 << channel; + + }, + + enable: function ( channel ) { + + this.mask |= 1 << channel; + + }, + + toggle: function ( channel ) { + + this.mask ^= 1 << channel; + + }, + + disable: function ( channel ) { + + this.mask &= ~ ( 1 << channel ); + + }, + + test: function ( layers ) { + + return ( this.mask & layers.mask ) !== 0; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author WestLangley / http://github.com/WestLangley + * @author elephantatwork / www.elephantatwork.ch + */ + + function Object3D() { + + Object.defineProperty( this, 'id', { value: Object3DIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.type = 'Object3D'; + + this.parent = null; + this.children = []; + + this.up = Object3D.DefaultUp.clone(); + + var position = new Vector3(); + var rotation = new Euler(); + var quaternion = new Quaternion(); + var scale = new Vector3( 1, 1, 1 ); + + function onRotationChange() { + + quaternion.setFromEuler( rotation, false ); + + } + + function onQuaternionChange() { + + rotation.setFromQuaternion( quaternion, undefined, false ); + + } + + rotation.onChange( onRotationChange ); + quaternion.onChange( onQuaternionChange ); + + Object.defineProperties( this, { + position: { + enumerable: true, + value: position + }, + rotation: { + enumerable: true, + value: rotation + }, + quaternion: { + enumerable: true, + value: quaternion + }, + scale: { + enumerable: true, + value: scale + }, + modelViewMatrix: { + value: new Matrix4() + }, + normalMatrix: { + value: new Matrix3() + } + } ); + + this.matrix = new Matrix4(); + this.matrixWorld = new Matrix4(); + + this.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate; + this.matrixWorldNeedsUpdate = false; + + this.layers = new Layers(); + this.visible = true; + + this.castShadow = false; + this.receiveShadow = false; + + this.frustumCulled = true; + this.renderOrder = 0; + + this.userData = {}; + + this.onBeforeRender = function(){}; + this.onAfterRender = function(){}; + + } + + Object3D.DefaultUp = new Vector3( 0, 1, 0 ); + Object3D.DefaultMatrixAutoUpdate = true; + + Object.assign( Object3D.prototype, EventDispatcher.prototype, { + + isObject3D: true, + + applyMatrix: function ( matrix ) { + + this.matrix.multiplyMatrices( matrix, this.matrix ); + + this.matrix.decompose( this.position, this.quaternion, this.scale ); + + }, + + setRotationFromAxisAngle: function ( axis, angle ) { + + // assumes axis is normalized + + this.quaternion.setFromAxisAngle( axis, angle ); + + }, + + setRotationFromEuler: function ( euler ) { + + this.quaternion.setFromEuler( euler, true ); + + }, + + setRotationFromMatrix: function ( m ) { + + // assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled) + + this.quaternion.setFromRotationMatrix( m ); + + }, + + setRotationFromQuaternion: function ( q ) { + + // assumes q is normalized + + this.quaternion.copy( q ); + + }, + + rotateOnAxis: function () { + + // rotate object on axis in object space + // axis is assumed to be normalized + + var q1 = new Quaternion(); + + return function rotateOnAxis( axis, angle ) { + + q1.setFromAxisAngle( axis, angle ); + + this.quaternion.multiply( q1 ); + + return this; + + }; + + }(), + + rotateX: function () { + + var v1 = new Vector3( 1, 0, 0 ); + + return function rotateX( angle ) { + + return this.rotateOnAxis( v1, angle ); + + }; + + }(), + + rotateY: function () { + + var v1 = new Vector3( 0, 1, 0 ); + + return function rotateY( angle ) { + + return this.rotateOnAxis( v1, angle ); + + }; + + }(), + + rotateZ: function () { + + var v1 = new Vector3( 0, 0, 1 ); + + return function rotateZ( angle ) { + + return this.rotateOnAxis( v1, angle ); + + }; + + }(), + + translateOnAxis: function () { + + // translate object by distance along axis in object space + // axis is assumed to be normalized + + var v1 = new Vector3(); + + return function translateOnAxis( axis, distance ) { + + v1.copy( axis ).applyQuaternion( this.quaternion ); + + this.position.add( v1.multiplyScalar( distance ) ); + + return this; + + }; + + }(), + + translateX: function () { + + var v1 = new Vector3( 1, 0, 0 ); + + return function translateX( distance ) { + + return this.translateOnAxis( v1, distance ); + + }; + + }(), + + translateY: function () { + + var v1 = new Vector3( 0, 1, 0 ); + + return function translateY( distance ) { + + return this.translateOnAxis( v1, distance ); + + }; + + }(), + + translateZ: function () { + + var v1 = new Vector3( 0, 0, 1 ); + + return function translateZ( distance ) { + + return this.translateOnAxis( v1, distance ); + + }; + + }(), + + localToWorld: function ( vector ) { + + return vector.applyMatrix4( this.matrixWorld ); + + }, + + worldToLocal: function () { + + var m1 = new Matrix4(); + + return function worldToLocal( vector ) { + + return vector.applyMatrix4( m1.getInverse( this.matrixWorld ) ); + + }; + + }(), + + lookAt: function () { + + // This routine does not support objects with rotated and/or translated parent(s) + + var m1 = new Matrix4(); + + return function lookAt( vector ) { + + m1.lookAt( vector, this.position, this.up ); + + this.quaternion.setFromRotationMatrix( m1 ); + + }; + + }(), + + add: function ( object ) { + + if ( arguments.length > 1 ) { + + for ( var i = 0; i < arguments.length; i ++ ) { + + this.add( arguments[ i ] ); + + } + + return this; + + } + + if ( object === this ) { + + console.error( "THREE.Object3D.add: object can't be added as a child of itself.", object ); + return this; + + } + + if ( (object && object.isObject3D) ) { + + if ( object.parent !== null ) { + + object.parent.remove( object ); + + } + + object.parent = this; + object.dispatchEvent( { type: 'added' } ); + + this.children.push( object ); + + } else { + + console.error( "THREE.Object3D.add: object not an instance of THREE.Object3D.", object ); + + } + + return this; + + }, + + remove: function ( object ) { + + if ( arguments.length > 1 ) { + + for ( var i = 0; i < arguments.length; i ++ ) { + + this.remove( arguments[ i ] ); + + } + + } + + var index = this.children.indexOf( object ); + + if ( index !== - 1 ) { + + object.parent = null; + + object.dispatchEvent( { type: 'removed' } ); + + this.children.splice( index, 1 ); + + } + + }, + + getObjectById: function ( id ) { + + return this.getObjectByProperty( 'id', id ); + + }, + + getObjectByName: function ( name ) { + + return this.getObjectByProperty( 'name', name ); + + }, + + getObjectByProperty: function ( name, value ) { + + if ( this[ name ] === value ) return this; + + for ( var i = 0, l = this.children.length; i < l; i ++ ) { + + var child = this.children[ i ]; + var object = child.getObjectByProperty( name, value ); + + if ( object !== undefined ) { + + return object; + + } + + } + + return undefined; + + }, + + getWorldPosition: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + this.updateMatrixWorld( true ); + + return result.setFromMatrixPosition( this.matrixWorld ); + + }, + + getWorldQuaternion: function () { + + var position = new Vector3(); + var scale = new Vector3(); + + return function getWorldQuaternion( optionalTarget ) { + + var result = optionalTarget || new Quaternion(); + + this.updateMatrixWorld( true ); + + this.matrixWorld.decompose( position, result, scale ); + + return result; + + }; + + }(), + + getWorldRotation: function () { + + var quaternion = new Quaternion(); + + return function getWorldRotation( optionalTarget ) { + + var result = optionalTarget || new Euler(); + + this.getWorldQuaternion( quaternion ); + + return result.setFromQuaternion( quaternion, this.rotation.order, false ); + + }; + + }(), + + getWorldScale: function () { + + var position = new Vector3(); + var quaternion = new Quaternion(); + + return function getWorldScale( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + this.updateMatrixWorld( true ); + + this.matrixWorld.decompose( position, quaternion, result ); + + return result; + + }; + + }(), + + getWorldDirection: function () { + + var quaternion = new Quaternion(); + + return function getWorldDirection( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + this.getWorldQuaternion( quaternion ); + + return result.set( 0, 0, 1 ).applyQuaternion( quaternion ); + + }; + + }(), + + raycast: function () {}, + + traverse: function ( callback ) { + + callback( this ); + + var children = this.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverse( callback ); + + } + + }, + + traverseVisible: function ( callback ) { + + if ( this.visible === false ) return; + + callback( this ); + + var children = this.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].traverseVisible( callback ); + + } + + }, + + traverseAncestors: function ( callback ) { + + var parent = this.parent; + + if ( parent !== null ) { + + callback( parent ); + + parent.traverseAncestors( callback ); + + } + + }, + + updateMatrix: function () { + + this.matrix.compose( this.position, this.quaternion, this.scale ); + + this.matrixWorldNeedsUpdate = true; + + }, + + updateMatrixWorld: function ( force ) { + + if ( this.matrixAutoUpdate === true ) this.updateMatrix(); + + if ( this.matrixWorldNeedsUpdate === true || force === true ) { + + if ( this.parent === null ) { + + this.matrixWorld.copy( this.matrix ); + + } else { + + this.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix ); + + } + + this.matrixWorldNeedsUpdate = false; + + force = true; + + } + + // update children + + var children = this.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + children[ i ].updateMatrixWorld( force ); + + } + + }, + + toJSON: function ( meta ) { + + // meta is '' when called from JSON.stringify + var isRootObject = ( meta === undefined || meta === '' ); + + var output = {}; + + // meta is a hash used to collect geometries, materials. + // not providing it implies that this is the root object + // being serialized. + if ( isRootObject ) { + + // initialize meta obj + meta = { + geometries: {}, + materials: {}, + textures: {}, + images: {} + }; + + output.metadata = { + version: 4.4, + type: 'Object', + generator: 'Object3D.toJSON' + }; + + } + + // standard Object3D serialization + + var object = {}; + + object.uuid = this.uuid; + object.type = this.type; + + if ( this.name !== '' ) object.name = this.name; + if ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData; + if ( this.castShadow === true ) object.castShadow = true; + if ( this.receiveShadow === true ) object.receiveShadow = true; + if ( this.visible === false ) object.visible = false; + + object.matrix = this.matrix.toArray(); + + // + + if ( this.geometry !== undefined ) { + + if ( meta.geometries[ this.geometry.uuid ] === undefined ) { + + meta.geometries[ this.geometry.uuid ] = this.geometry.toJSON( meta ); + + } + + object.geometry = this.geometry.uuid; + + } + + if ( this.material !== undefined ) { + + if ( meta.materials[ this.material.uuid ] === undefined ) { + + meta.materials[ this.material.uuid ] = this.material.toJSON( meta ); + + } + + object.material = this.material.uuid; + + } + + // + + if ( this.children.length > 0 ) { + + object.children = []; + + for ( var i = 0; i < this.children.length; i ++ ) { + + object.children.push( this.children[ i ].toJSON( meta ).object ); + + } + + } + + if ( isRootObject ) { + + var geometries = extractFromCache( meta.geometries ); + var materials = extractFromCache( meta.materials ); + var textures = extractFromCache( meta.textures ); + var images = extractFromCache( meta.images ); + + if ( geometries.length > 0 ) output.geometries = geometries; + if ( materials.length > 0 ) output.materials = materials; + if ( textures.length > 0 ) output.textures = textures; + if ( images.length > 0 ) output.images = images; + + } + + output.object = object; + + return output; + + // extract data from the cache hash + // remove metadata on each item + // and return as array + function extractFromCache( cache ) { + + var values = []; + for ( var key in cache ) { + + var data = cache[ key ]; + delete data.metadata; + values.push( data ); + + } + return values; + + } + + }, + + clone: function ( recursive ) { + + return new this.constructor().copy( this, recursive ); + + }, + + copy: function ( source, recursive ) { + + if ( recursive === undefined ) recursive = true; + + this.name = source.name; + + this.up.copy( source.up ); + + this.position.copy( source.position ); + this.quaternion.copy( source.quaternion ); + this.scale.copy( source.scale ); + + this.matrix.copy( source.matrix ); + this.matrixWorld.copy( source.matrixWorld ); + + this.matrixAutoUpdate = source.matrixAutoUpdate; + this.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate; + + this.visible = source.visible; + + this.castShadow = source.castShadow; + this.receiveShadow = source.receiveShadow; + + this.frustumCulled = source.frustumCulled; + this.renderOrder = source.renderOrder; + + this.userData = JSON.parse( JSON.stringify( source.userData ) ); + + if ( recursive === true ) { + + for ( var i = 0; i < source.children.length; i ++ ) { + + var child = source.children[ i ]; + this.add( child.clone() ); + + } + + } + + return this; + + } + + } ); + + var count$2 = 0; + function Object3DIdCount() { return count$2++; } + + /** + * @author bhouston / http://clara.io + */ + + function Line3( start, end ) { + + this.start = ( start !== undefined ) ? start : new Vector3(); + this.end = ( end !== undefined ) ? end : new Vector3(); + + } + + Line3.prototype = { + + constructor: Line3, + + set: function ( start, end ) { + + this.start.copy( start ); + this.end.copy( end ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( line ) { + + this.start.copy( line.start ); + this.end.copy( line.end ); + + return this; + + }, + + getCenter: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return result.addVectors( this.start, this.end ).multiplyScalar( 0.5 ); + + }, + + delta: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return result.subVectors( this.end, this.start ); + + }, + + distanceSq: function () { + + return this.start.distanceToSquared( this.end ); + + }, + + distance: function () { + + return this.start.distanceTo( this.end ); + + }, + + at: function ( t, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + return this.delta( result ).multiplyScalar( t ).add( this.start ); + + }, + + closestPointToPointParameter: function () { + + var startP = new Vector3(); + var startEnd = new Vector3(); + + return function closestPointToPointParameter( point, clampToLine ) { + + startP.subVectors( point, this.start ); + startEnd.subVectors( this.end, this.start ); + + var startEnd2 = startEnd.dot( startEnd ); + var startEnd_startP = startEnd.dot( startP ); + + var t = startEnd_startP / startEnd2; + + if ( clampToLine ) { + + t = _Math.clamp( t, 0, 1 ); + + } + + return t; + + }; + + }(), + + closestPointToPoint: function ( point, clampToLine, optionalTarget ) { + + var t = this.closestPointToPointParameter( point, clampToLine ); + + var result = optionalTarget || new Vector3(); + + return this.delta( result ).multiplyScalar( t ).add( this.start ); + + }, + + applyMatrix4: function ( matrix ) { + + this.start.applyMatrix4( matrix ); + this.end.applyMatrix4( matrix ); + + return this; + + }, + + equals: function ( line ) { + + return line.start.equals( this.start ) && line.end.equals( this.end ); + + } + + }; + + /** + * @author bhouston / http://clara.io + * @author mrdoob / http://mrdoob.com/ + */ + + function Triangle( a, b, c ) { + + this.a = ( a !== undefined ) ? a : new Vector3(); + this.b = ( b !== undefined ) ? b : new Vector3(); + this.c = ( c !== undefined ) ? c : new Vector3(); + + } + + Triangle.normal = function () { + + var v0 = new Vector3(); + + return function normal( a, b, c, optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + result.subVectors( c, b ); + v0.subVectors( a, b ); + result.cross( v0 ); + + var resultLengthSq = result.lengthSq(); + if ( resultLengthSq > 0 ) { + + return result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) ); + + } + + return result.set( 0, 0, 0 ); + + }; + + }(); + + // static/instance method to calculate barycentric coordinates + // based on: http://www.blackpawn.com/texts/pointinpoly/default.html + Triangle.barycoordFromPoint = function () { + + var v0 = new Vector3(); + var v1 = new Vector3(); + var v2 = new Vector3(); + + return function barycoordFromPoint( point, a, b, c, optionalTarget ) { + + v0.subVectors( c, a ); + v1.subVectors( b, a ); + v2.subVectors( point, a ); + + var dot00 = v0.dot( v0 ); + var dot01 = v0.dot( v1 ); + var dot02 = v0.dot( v2 ); + var dot11 = v1.dot( v1 ); + var dot12 = v1.dot( v2 ); + + var denom = ( dot00 * dot11 - dot01 * dot01 ); + + var result = optionalTarget || new Vector3(); + + // collinear or singular triangle + if ( denom === 0 ) { + + // arbitrary location outside of triangle? + // not sure if this is the best idea, maybe should be returning undefined + return result.set( - 2, - 1, - 1 ); + + } + + var invDenom = 1 / denom; + var u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom; + var v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom; + + // barycentric coordinates must always sum to 1 + return result.set( 1 - u - v, v, u ); + + }; + + }(); + + Triangle.containsPoint = function () { + + var v1 = new Vector3(); + + return function containsPoint( point, a, b, c ) { + + var result = Triangle.barycoordFromPoint( point, a, b, c, v1 ); + + return ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 ); + + }; + + }(); + + Triangle.prototype = { + + constructor: Triangle, + + set: function ( a, b, c ) { + + this.a.copy( a ); + this.b.copy( b ); + this.c.copy( c ); + + return this; + + }, + + setFromPointsAndIndices: function ( points, i0, i1, i2 ) { + + this.a.copy( points[ i0 ] ); + this.b.copy( points[ i1 ] ); + this.c.copy( points[ i2 ] ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( triangle ) { + + this.a.copy( triangle.a ); + this.b.copy( triangle.b ); + this.c.copy( triangle.c ); + + return this; + + }, + + area: function () { + + var v0 = new Vector3(); + var v1 = new Vector3(); + + return function area() { + + v0.subVectors( this.c, this.b ); + v1.subVectors( this.a, this.b ); + + return v0.cross( v1 ).length() * 0.5; + + }; + + }(), + + midpoint: function ( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + return result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 ); + + }, + + normal: function ( optionalTarget ) { + + return Triangle.normal( this.a, this.b, this.c, optionalTarget ); + + }, + + plane: function ( optionalTarget ) { + + var result = optionalTarget || new Plane(); + + return result.setFromCoplanarPoints( this.a, this.b, this.c ); + + }, + + barycoordFromPoint: function ( point, optionalTarget ) { + + return Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget ); + + }, + + containsPoint: function ( point ) { + + return Triangle.containsPoint( point, this.a, this.b, this.c ); + + }, + + closestPointToPoint: function () { + + var plane, edgeList, projectedPoint, closestPoint; + + return function closestPointToPoint( point, optionalTarget ) { + + if ( plane === undefined ) { + + plane = new Plane(); + edgeList = [ new Line3(), new Line3(), new Line3() ]; + projectedPoint = new Vector3(); + closestPoint = new Vector3(); + + } + + var result = optionalTarget || new Vector3(); + var minDistance = Infinity; + + // project the point onto the plane of the triangle + + plane.setFromCoplanarPoints( this.a, this.b, this.c ); + plane.projectPoint( point, projectedPoint ); + + // check if the projection lies within the triangle + + if( this.containsPoint( projectedPoint ) === true ) { + + // if so, this is the closest point + + result.copy( projectedPoint ); + + } else { + + // if not, the point falls outside the triangle. the result is the closest point to the triangle's edges or vertices + + edgeList[ 0 ].set( this.a, this.b ); + edgeList[ 1 ].set( this.b, this.c ); + edgeList[ 2 ].set( this.c, this.a ); + + for( var i = 0; i < edgeList.length; i ++ ) { + + edgeList[ i ].closestPointToPoint( projectedPoint, true, closestPoint ); + + var distance = projectedPoint.distanceToSquared( closestPoint ); + + if( distance < minDistance ) { + + minDistance = distance; + + result.copy( closestPoint ); + + } + + } + + } + + return result; + + }; + + }(), + + equals: function ( triangle ) { + + return triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c ); + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Face3( a, b, c, normal, color, materialIndex ) { + + this.a = a; + this.b = b; + this.c = c; + + this.normal = (normal && normal.isVector3) ? normal : new Vector3(); + this.vertexNormals = Array.isArray( normal ) ? normal : []; + + this.color = (color && color.isColor) ? color : new Color(); + this.vertexColors = Array.isArray( color ) ? color : []; + + this.materialIndex = materialIndex !== undefined ? materialIndex : 0; + + } + + Face3.prototype = { + + constructor: Face3, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( source ) { + + this.a = source.a; + this.b = source.b; + this.c = source.c; + + this.normal.copy( source.normal ); + this.color.copy( source.color ); + + this.materialIndex = source.materialIndex; + + for ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) { + + this.vertexNormals[ i ] = source.vertexNormals[ i ].clone(); + + } + + for ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) { + + this.vertexColors[ i ] = source.vertexColors[ i ].clone(); + + } + + return this; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * shading: THREE.SmoothShading, + * depthTest: , + * depthWrite: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: + * } + */ + + function MeshBasicMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshBasicMaterial'; + + this.color = new Color( 0xffffff ); // emissive + + this.map = null; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + + this.lights = false; + + this.setValues( parameters ); + + } + + MeshBasicMaterial.prototype = Object.create( Material.prototype ); + MeshBasicMaterial.prototype.constructor = MeshBasicMaterial; + + MeshBasicMaterial.prototype.isMeshBasicMaterial = true; + + MeshBasicMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function BufferAttribute( array, itemSize, normalized ) { + + if ( Array.isArray( array ) ) { + + throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' ); + + } + + this.uuid = _Math.generateUUID(); + + this.array = array; + this.itemSize = itemSize; + this.count = array !== undefined ? array.length / itemSize : 0; + this.normalized = normalized === true; + + this.dynamic = false; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + + } + + BufferAttribute.prototype = { + + constructor: BufferAttribute, + + isBufferAttribute: true, + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + }, + + setArray: function ( array ) { + + if ( Array.isArray( array ) ) { + + throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' ); + + } + + this.count = array !== undefined ? array.length / this.itemSize : 0; + this.array = array; + + }, + + setDynamic: function ( value ) { + + this.dynamic = value; + + return this; + + }, + + copy: function ( source ) { + + this.array = new source.array.constructor( source.array ); + this.itemSize = source.itemSize; + this.count = source.count; + this.normalized = source.normalized; + + this.dynamic = source.dynamic; + + return this; + + }, + + copyAt: function ( index1, attribute, index2 ) { + + index1 *= this.itemSize; + index2 *= attribute.itemSize; + + for ( var i = 0, l = this.itemSize; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + }, + + copyArray: function ( array ) { + + this.array.set( array ); + + return this; + + }, + + copyColorsArray: function ( colors ) { + + var array = this.array, offset = 0; + + for ( var i = 0, l = colors.length; i < l; i ++ ) { + + var color = colors[ i ]; + + if ( color === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i ); + color = new Color(); + + } + + array[ offset ++ ] = color.r; + array[ offset ++ ] = color.g; + array[ offset ++ ] = color.b; + + } + + return this; + + }, + + copyIndicesArray: function ( indices ) { + + var array = this.array, offset = 0; + + for ( var i = 0, l = indices.length; i < l; i ++ ) { + + var index = indices[ i ]; + + array[ offset ++ ] = index.a; + array[ offset ++ ] = index.b; + array[ offset ++ ] = index.c; + + } + + return this; + + }, + + copyVector2sArray: function ( vectors ) { + + var array = this.array, offset = 0; + + for ( var i = 0, l = vectors.length; i < l; i ++ ) { + + var vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i ); + vector = new Vector2(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + + } + + return this; + + }, + + copyVector3sArray: function ( vectors ) { + + var array = this.array, offset = 0; + + for ( var i = 0, l = vectors.length; i < l; i ++ ) { + + var vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i ); + vector = new Vector3(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + + } + + return this; + + }, + + copyVector4sArray: function ( vectors ) { + + var array = this.array, offset = 0; + + for ( var i = 0, l = vectors.length; i < l; i ++ ) { + + var vector = vectors[ i ]; + + if ( vector === undefined ) { + + console.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i ); + vector = new Vector4(); + + } + + array[ offset ++ ] = vector.x; + array[ offset ++ ] = vector.y; + array[ offset ++ ] = vector.z; + array[ offset ++ ] = vector.w; + + } + + return this; + + }, + + set: function ( value, offset ) { + + if ( offset === undefined ) offset = 0; + + this.array.set( value, offset ); + + return this; + + }, + + getX: function ( index ) { + + return this.array[ index * this.itemSize ]; + + }, + + setX: function ( index, x ) { + + this.array[ index * this.itemSize ] = x; + + return this; + + }, + + getY: function ( index ) { + + return this.array[ index * this.itemSize + 1 ]; + + }, + + setY: function ( index, y ) { + + this.array[ index * this.itemSize + 1 ] = y; + + return this; + + }, + + getZ: function ( index ) { + + return this.array[ index * this.itemSize + 2 ]; + + }, + + setZ: function ( index, z ) { + + this.array[ index * this.itemSize + 2 ] = z; + + return this; + + }, + + getW: function ( index ) { + + return this.array[ index * this.itemSize + 3 ]; + + }, + + setW: function ( index, w ) { + + this.array[ index * this.itemSize + 3 ] = w; + + return this; + + }, + + setXY: function ( index, x, y ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + + return this; + + }, + + setXYZ: function ( index, x, y, z ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + + return this; + + }, + + setXYZW: function ( index, x, y, z, w ) { + + index *= this.itemSize; + + this.array[ index + 0 ] = x; + this.array[ index + 1 ] = y; + this.array[ index + 2 ] = z; + this.array[ index + 3 ] = w; + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + } + + }; + + // + + function Int8Attribute( array, itemSize ) { + + return new BufferAttribute( new Int8Array( array ), itemSize ); + + } + + function Uint8Attribute( array, itemSize ) { + + return new BufferAttribute( new Uint8Array( array ), itemSize ); + + } + + function Uint8ClampedAttribute( array, itemSize ) { + + return new BufferAttribute( new Uint8ClampedArray( array ), itemSize ); + + } + + function Int16Attribute( array, itemSize ) { + + return new BufferAttribute( new Int16Array( array ), itemSize ); + + } + + function Uint16Attribute( array, itemSize ) { + + return new BufferAttribute( new Uint16Array( array ), itemSize ); + + } + + function Int32Attribute( array, itemSize ) { + + return new BufferAttribute( new Int32Array( array ), itemSize ); + + } + + function Uint32Attribute( array, itemSize ) { + + return new BufferAttribute( new Uint32Array( array ), itemSize ); + + } + + function Float32Attribute( array, itemSize ) { + + return new BufferAttribute( new Float32Array( array ), itemSize ); + + } + + function Float64Attribute( array, itemSize ) { + + return new BufferAttribute( new Float64Array( array ), itemSize ); + + } + + // Deprecated + + function DynamicBufferAttribute( array, itemSize ) { + + console.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' ); + return new BufferAttribute( array, itemSize ).setDynamic( true ); + + } + + /** + * @author mrdoob / http://mrdoob.com/ + * @author kile / http://kile.stravaganza.org/ + * @author alteredq / http://alteredqualia.com/ + * @author mikael emtinger / http://gomo.se/ + * @author zz85 / http://www.lab4games.net/zz85/blog + * @author bhouston / http://clara.io + */ + + function Geometry() { + + Object.defineProperty( this, 'id', { value: GeometryIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.type = 'Geometry'; + + this.vertices = []; + this.colors = []; + this.faces = []; + this.faceVertexUvs = [ [] ]; + + this.morphTargets = []; + this.morphNormals = []; + + this.skinWeights = []; + this.skinIndices = []; + + this.lineDistances = []; + + this.boundingBox = null; + this.boundingSphere = null; + + // update flags + + this.elementsNeedUpdate = false; + this.verticesNeedUpdate = false; + this.uvsNeedUpdate = false; + this.normalsNeedUpdate = false; + this.colorsNeedUpdate = false; + this.lineDistancesNeedUpdate = false; + this.groupsNeedUpdate = false; + + } + + Object.assign( Geometry.prototype, EventDispatcher.prototype, { + + isGeometry: true, + + applyMatrix: function ( matrix ) { + + var normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + for ( var i = 0, il = this.vertices.length; i < il; i ++ ) { + + var vertex = this.vertices[ i ]; + vertex.applyMatrix4( matrix ); + + } + + for ( var i = 0, il = this.faces.length; i < il; i ++ ) { + + var face = this.faces[ i ]; + face.normal.applyMatrix3( normalMatrix ).normalize(); + + for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) { + + face.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize(); + + } + + } + + if ( this.boundingBox !== null ) { + + this.computeBoundingBox(); + + } + + if ( this.boundingSphere !== null ) { + + this.computeBoundingSphere(); + + } + + this.verticesNeedUpdate = true; + this.normalsNeedUpdate = true; + + return this; + + }, + + rotateX: function () { + + // rotate geometry around world x-axis + + var m1; + + return function rotateX( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationX( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + rotateY: function () { + + // rotate geometry around world y-axis + + var m1; + + return function rotateY( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationY( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + rotateZ: function () { + + // rotate geometry around world z-axis + + var m1; + + return function rotateZ( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationZ( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + translate: function () { + + // translate geometry + + var m1; + + return function translate( x, y, z ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeTranslation( x, y, z ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + scale: function () { + + // scale geometry + + var m1; + + return function scale( x, y, z ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeScale( x, y, z ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + lookAt: function () { + + var obj; + + return function lookAt( vector ) { + + if ( obj === undefined ) obj = new Object3D(); + + obj.lookAt( vector ); + + obj.updateMatrix(); + + this.applyMatrix( obj.matrix ); + + }; + + }(), + + fromBufferGeometry: function ( geometry ) { + + var scope = this; + + var indices = geometry.index !== null ? geometry.index.array : undefined; + var attributes = geometry.attributes; + + var positions = attributes.position.array; + var normals = attributes.normal !== undefined ? attributes.normal.array : undefined; + var colors = attributes.color !== undefined ? attributes.color.array : undefined; + var uvs = attributes.uv !== undefined ? attributes.uv.array : undefined; + var uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined; + + if ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = []; + + var tempNormals = []; + var tempUVs = []; + var tempUVs2 = []; + + for ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) { + + scope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) ); + + if ( normals !== undefined ) { + + tempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) ); + + } + + if ( colors !== undefined ) { + + scope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) ); + + } + + if ( uvs !== undefined ) { + + tempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) ); + + } + + if ( uvs2 !== undefined ) { + + tempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) ); + + } + + } + + function addFace( a, b, c, materialIndex ) { + + var vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : []; + var vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : []; + + var face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex ); + + scope.faces.push( face ); + + if ( uvs !== undefined ) { + + scope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] ); + + } + + if ( uvs2 !== undefined ) { + + scope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] ); + + } + + } + + if ( indices !== undefined ) { + + var groups = geometry.groups; + + if ( groups.length > 0 ) { + + for ( var i = 0; i < groups.length; i ++ ) { + + var group = groups[ i ]; + + var start = group.start; + var count = group.count; + + for ( var j = start, jl = start + count; j < jl; j += 3 ) { + + addFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex ); + + } + + } + + } else { + + for ( var i = 0; i < indices.length; i += 3 ) { + + addFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] ); + + } + + } + + } else { + + for ( var i = 0; i < positions.length / 3; i += 3 ) { + + addFace( i, i + 1, i + 2 ); + + } + + } + + this.computeFaceNormals(); + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + return this; + + }, + + center: function () { + + this.computeBoundingBox(); + + var offset = this.boundingBox.getCenter().negate(); + + this.translate( offset.x, offset.y, offset.z ); + + return offset; + + }, + + normalize: function () { + + this.computeBoundingSphere(); + + var center = this.boundingSphere.center; + var radius = this.boundingSphere.radius; + + var s = radius === 0 ? 1 : 1.0 / radius; + + var matrix = new Matrix4(); + matrix.set( + s, 0, 0, - s * center.x, + 0, s, 0, - s * center.y, + 0, 0, s, - s * center.z, + 0, 0, 0, 1 + ); + + this.applyMatrix( matrix ); + + return this; + + }, + + computeFaceNormals: function () { + + var cb = new Vector3(), ab = new Vector3(); + + for ( var f = 0, fl = this.faces.length; f < fl; f ++ ) { + + var face = this.faces[ f ]; + + var vA = this.vertices[ face.a ]; + var vB = this.vertices[ face.b ]; + var vC = this.vertices[ face.c ]; + + cb.subVectors( vC, vB ); + ab.subVectors( vA, vB ); + cb.cross( ab ); + + cb.normalize(); + + face.normal.copy( cb ); + + } + + }, + + computeVertexNormals: function ( areaWeighted ) { + + if ( areaWeighted === undefined ) areaWeighted = true; + + var v, vl, f, fl, face, vertices; + + vertices = new Array( this.vertices.length ); + + for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) { + + vertices[ v ] = new Vector3(); + + } + + if ( areaWeighted ) { + + // vertex normals weighted by triangle areas + // http://www.iquilezles.org/www/articles/normals/normals.htm + + var vA, vB, vC; + var cb = new Vector3(), ab = new Vector3(); + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + vA = this.vertices[ face.a ]; + vB = this.vertices[ face.b ]; + vC = this.vertices[ face.c ]; + + cb.subVectors( vC, vB ); + ab.subVectors( vA, vB ); + cb.cross( ab ); + + vertices[ face.a ].add( cb ); + vertices[ face.b ].add( cb ); + vertices[ face.c ].add( cb ); + + } + + } else { + + this.computeFaceNormals(); + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + vertices[ face.a ].add( face.normal ); + vertices[ face.b ].add( face.normal ); + vertices[ face.c ].add( face.normal ); + + } + + } + + for ( v = 0, vl = this.vertices.length; v < vl; v ++ ) { + + vertices[ v ].normalize(); + + } + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + var vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + vertexNormals[ 0 ].copy( vertices[ face.a ] ); + vertexNormals[ 1 ].copy( vertices[ face.b ] ); + vertexNormals[ 2 ].copy( vertices[ face.c ] ); + + } else { + + vertexNormals[ 0 ] = vertices[ face.a ].clone(); + vertexNormals[ 1 ] = vertices[ face.b ].clone(); + vertexNormals[ 2 ] = vertices[ face.c ].clone(); + + } + + } + + if ( this.faces.length > 0 ) { + + this.normalsNeedUpdate = true; + + } + + }, + + computeFlatVertexNormals: function () { + + var f, fl, face; + + this.computeFaceNormals(); + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + var vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + vertexNormals[ 0 ].copy( face.normal ); + vertexNormals[ 1 ].copy( face.normal ); + vertexNormals[ 2 ].copy( face.normal ); + + } else { + + vertexNormals[ 0 ] = face.normal.clone(); + vertexNormals[ 1 ] = face.normal.clone(); + vertexNormals[ 2 ] = face.normal.clone(); + + } + + } + + if ( this.faces.length > 0 ) { + + this.normalsNeedUpdate = true; + + } + + }, + + computeMorphNormals: function () { + + var i, il, f, fl, face; + + // save original normals + // - create temp variables on first access + // otherwise just copy (for faster repeated calls) + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + if ( ! face.__originalFaceNormal ) { + + face.__originalFaceNormal = face.normal.clone(); + + } else { + + face.__originalFaceNormal.copy( face.normal ); + + } + + if ( ! face.__originalVertexNormals ) face.__originalVertexNormals = []; + + for ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) { + + if ( ! face.__originalVertexNormals[ i ] ) { + + face.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone(); + + } else { + + face.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] ); + + } + + } + + } + + // use temp geometry to compute face and vertex normals for each morph + + var tmpGeo = new Geometry(); + tmpGeo.faces = this.faces; + + for ( i = 0, il = this.morphTargets.length; i < il; i ++ ) { + + // create on first access + + if ( ! this.morphNormals[ i ] ) { + + this.morphNormals[ i ] = {}; + this.morphNormals[ i ].faceNormals = []; + this.morphNormals[ i ].vertexNormals = []; + + var dstNormalsFace = this.morphNormals[ i ].faceNormals; + var dstNormalsVertex = this.morphNormals[ i ].vertexNormals; + + var faceNormal, vertexNormals; + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + faceNormal = new Vector3(); + vertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() }; + + dstNormalsFace.push( faceNormal ); + dstNormalsVertex.push( vertexNormals ); + + } + + } + + var morphNormals = this.morphNormals[ i ]; + + // set vertices to morph target + + tmpGeo.vertices = this.morphTargets[ i ].vertices; + + // compute morph normals + + tmpGeo.computeFaceNormals(); + tmpGeo.computeVertexNormals(); + + // store morph normals + + var faceNormal, vertexNormals; + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + faceNormal = morphNormals.faceNormals[ f ]; + vertexNormals = morphNormals.vertexNormals[ f ]; + + faceNormal.copy( face.normal ); + + vertexNormals.a.copy( face.vertexNormals[ 0 ] ); + vertexNormals.b.copy( face.vertexNormals[ 1 ] ); + vertexNormals.c.copy( face.vertexNormals[ 2 ] ); + + } + + } + + // restore original normals + + for ( f = 0, fl = this.faces.length; f < fl; f ++ ) { + + face = this.faces[ f ]; + + face.normal = face.__originalFaceNormal; + face.vertexNormals = face.__originalVertexNormals; + + } + + }, + + computeTangents: function () { + + console.warn( 'THREE.Geometry: .computeTangents() has been removed.' ); + + }, + + computeLineDistances: function () { + + var d = 0; + var vertices = this.vertices; + + for ( var i = 0, il = vertices.length; i < il; i ++ ) { + + if ( i > 0 ) { + + d += vertices[ i ].distanceTo( vertices[ i - 1 ] ); + + } + + this.lineDistances[ i ] = d; + + } + + }, + + computeBoundingBox: function () { + + if ( this.boundingBox === null ) { + + this.boundingBox = new Box3(); + + } + + this.boundingBox.setFromPoints( this.vertices ); + + }, + + computeBoundingSphere: function () { + + if ( this.boundingSphere === null ) { + + this.boundingSphere = new Sphere(); + + } + + this.boundingSphere.setFromPoints( this.vertices ); + + }, + + merge: function ( geometry, matrix, materialIndexOffset ) { + + if ( (geometry && geometry.isGeometry) === false ) { + + console.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry ); + return; + + } + + var normalMatrix, + vertexOffset = this.vertices.length, + vertices1 = this.vertices, + vertices2 = geometry.vertices, + faces1 = this.faces, + faces2 = geometry.faces, + uvs1 = this.faceVertexUvs[ 0 ], + uvs2 = geometry.faceVertexUvs[ 0 ], + colors1 = this.colors, + colors2 = geometry.colors; + + if ( materialIndexOffset === undefined ) materialIndexOffset = 0; + + if ( matrix !== undefined ) { + + normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + } + + // vertices + + for ( var i = 0, il = vertices2.length; i < il; i ++ ) { + + var vertex = vertices2[ i ]; + + var vertexCopy = vertex.clone(); + + if ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix ); + + vertices1.push( vertexCopy ); + + } + + // colors + + for ( var i = 0, il = colors2.length; i < il; i ++ ) { + + colors1.push( colors2[ i ].clone() ); + + } + + // faces + + for ( i = 0, il = faces2.length; i < il; i ++ ) { + + var face = faces2[ i ], faceCopy, normal, color, + faceVertexNormals = face.vertexNormals, + faceVertexColors = face.vertexColors; + + faceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset ); + faceCopy.normal.copy( face.normal ); + + if ( normalMatrix !== undefined ) { + + faceCopy.normal.applyMatrix3( normalMatrix ).normalize(); + + } + + for ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) { + + normal = faceVertexNormals[ j ].clone(); + + if ( normalMatrix !== undefined ) { + + normal.applyMatrix3( normalMatrix ).normalize(); + + } + + faceCopy.vertexNormals.push( normal ); + + } + + faceCopy.color.copy( face.color ); + + for ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) { + + color = faceVertexColors[ j ]; + faceCopy.vertexColors.push( color.clone() ); + + } + + faceCopy.materialIndex = face.materialIndex + materialIndexOffset; + + faces1.push( faceCopy ); + + } + + // uvs + + for ( i = 0, il = uvs2.length; i < il; i ++ ) { + + var uv = uvs2[ i ], uvCopy = []; + + if ( uv === undefined ) { + + continue; + + } + + for ( var j = 0, jl = uv.length; j < jl; j ++ ) { + + uvCopy.push( uv[ j ].clone() ); + + } + + uvs1.push( uvCopy ); + + } + + }, + + mergeMesh: function ( mesh ) { + + if ( (mesh && mesh.isMesh) === false ) { + + console.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh ); + return; + + } + + mesh.matrixAutoUpdate && mesh.updateMatrix(); + + this.merge( mesh.geometry, mesh.matrix ); + + }, + + /* + * Checks for duplicate vertices with hashmap. + * Duplicated vertices are removed + * and faces' vertices are updated. + */ + + mergeVertices: function () { + + var verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique) + var unique = [], changes = []; + + var v, key; + var precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001 + var precision = Math.pow( 10, precisionPoints ); + var i, il, face; + var indices, j, jl; + + for ( i = 0, il = this.vertices.length; i < il; i ++ ) { + + v = this.vertices[ i ]; + key = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision ); + + if ( verticesMap[ key ] === undefined ) { + + verticesMap[ key ] = i; + unique.push( this.vertices[ i ] ); + changes[ i ] = unique.length - 1; + + } else { + + //console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]); + changes[ i ] = changes[ verticesMap[ key ] ]; + + } + + } + + + // if faces are completely degenerate after merging vertices, we + // have to remove them from the geometry. + var faceIndicesToRemove = []; + + for ( i = 0, il = this.faces.length; i < il; i ++ ) { + + face = this.faces[ i ]; + + face.a = changes[ face.a ]; + face.b = changes[ face.b ]; + face.c = changes[ face.c ]; + + indices = [ face.a, face.b, face.c ]; + + var dupIndex = - 1; + + // if any duplicate vertices are found in a Face3 + // we have to remove the face as nothing can be saved + for ( var n = 0; n < 3; n ++ ) { + + if ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) { + + dupIndex = n; + faceIndicesToRemove.push( i ); + break; + + } + + } + + } + + for ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) { + + var idx = faceIndicesToRemove[ i ]; + + this.faces.splice( idx, 1 ); + + for ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) { + + this.faceVertexUvs[ j ].splice( idx, 1 ); + + } + + } + + // Use unique set of vertices + + var diff = this.vertices.length - unique.length; + this.vertices = unique; + return diff; + + }, + + sortFacesByMaterialIndex: function () { + + var faces = this.faces; + var length = faces.length; + + // tag faces + + for ( var i = 0; i < length; i ++ ) { + + faces[ i ]._id = i; + + } + + // sort faces + + function materialIndexSort( a, b ) { + + return a.materialIndex - b.materialIndex; + + } + + faces.sort( materialIndexSort ); + + // sort uvs + + var uvs1 = this.faceVertexUvs[ 0 ]; + var uvs2 = this.faceVertexUvs[ 1 ]; + + var newUvs1, newUvs2; + + if ( uvs1 && uvs1.length === length ) newUvs1 = []; + if ( uvs2 && uvs2.length === length ) newUvs2 = []; + + for ( var i = 0; i < length; i ++ ) { + + var id = faces[ i ]._id; + + if ( newUvs1 ) newUvs1.push( uvs1[ id ] ); + if ( newUvs2 ) newUvs2.push( uvs2[ id ] ); + + } + + if ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1; + if ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2; + + }, + + toJSON: function () { + + var data = { + metadata: { + version: 4.4, + type: 'Geometry', + generator: 'Geometry.toJSON' + } + }; + + // standard Geometry serialization + + data.uuid = this.uuid; + data.type = this.type; + if ( this.name !== '' ) data.name = this.name; + + if ( this.parameters !== undefined ) { + + var parameters = this.parameters; + + for ( var key in parameters ) { + + if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; + + } + + return data; + + } + + var vertices = []; + + for ( var i = 0; i < this.vertices.length; i ++ ) { + + var vertex = this.vertices[ i ]; + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + var faces = []; + var normals = []; + var normalsHash = {}; + var colors = []; + var colorsHash = {}; + var uvs = []; + var uvsHash = {}; + + for ( var i = 0; i < this.faces.length; i ++ ) { + + var face = this.faces[ i ]; + + var hasMaterial = true; + var hasFaceUv = false; // deprecated + var hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined; + var hasFaceNormal = face.normal.length() > 0; + var hasFaceVertexNormal = face.vertexNormals.length > 0; + var hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1; + var hasFaceVertexColor = face.vertexColors.length > 0; + + var faceType = 0; + + faceType = setBit( faceType, 0, 0 ); // isQuad + faceType = setBit( faceType, 1, hasMaterial ); + faceType = setBit( faceType, 2, hasFaceUv ); + faceType = setBit( faceType, 3, hasFaceVertexUv ); + faceType = setBit( faceType, 4, hasFaceNormal ); + faceType = setBit( faceType, 5, hasFaceVertexNormal ); + faceType = setBit( faceType, 6, hasFaceColor ); + faceType = setBit( faceType, 7, hasFaceVertexColor ); + + faces.push( faceType ); + faces.push( face.a, face.b, face.c ); + faces.push( face.materialIndex ); + + if ( hasFaceVertexUv ) { + + var faceVertexUvs = this.faceVertexUvs[ 0 ][ i ]; + + faces.push( + getUvIndex( faceVertexUvs[ 0 ] ), + getUvIndex( faceVertexUvs[ 1 ] ), + getUvIndex( faceVertexUvs[ 2 ] ) + ); + + } + + if ( hasFaceNormal ) { + + faces.push( getNormalIndex( face.normal ) ); + + } + + if ( hasFaceVertexNormal ) { + + var vertexNormals = face.vertexNormals; + + faces.push( + getNormalIndex( vertexNormals[ 0 ] ), + getNormalIndex( vertexNormals[ 1 ] ), + getNormalIndex( vertexNormals[ 2 ] ) + ); + + } + + if ( hasFaceColor ) { + + faces.push( getColorIndex( face.color ) ); + + } + + if ( hasFaceVertexColor ) { + + var vertexColors = face.vertexColors; + + faces.push( + getColorIndex( vertexColors[ 0 ] ), + getColorIndex( vertexColors[ 1 ] ), + getColorIndex( vertexColors[ 2 ] ) + ); + + } + + } + + function setBit( value, position, enabled ) { + + return enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) ); + + } + + function getNormalIndex( normal ) { + + var hash = normal.x.toString() + normal.y.toString() + normal.z.toString(); + + if ( normalsHash[ hash ] !== undefined ) { + + return normalsHash[ hash ]; + + } + + normalsHash[ hash ] = normals.length / 3; + normals.push( normal.x, normal.y, normal.z ); + + return normalsHash[ hash ]; + + } + + function getColorIndex( color ) { + + var hash = color.r.toString() + color.g.toString() + color.b.toString(); + + if ( colorsHash[ hash ] !== undefined ) { + + return colorsHash[ hash ]; + + } + + colorsHash[ hash ] = colors.length; + colors.push( color.getHex() ); + + return colorsHash[ hash ]; + + } + + function getUvIndex( uv ) { + + var hash = uv.x.toString() + uv.y.toString(); + + if ( uvsHash[ hash ] !== undefined ) { + + return uvsHash[ hash ]; + + } + + uvsHash[ hash ] = uvs.length / 2; + uvs.push( uv.x, uv.y ); + + return uvsHash[ hash ]; + + } + + data.data = {}; + + data.data.vertices = vertices; + data.data.normals = normals; + if ( colors.length > 0 ) data.data.colors = colors; + if ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility + data.data.faces = faces; + + return data; + + }, + + clone: function () { + + /* + // Handle primitives + + var parameters = this.parameters; + + if ( parameters !== undefined ) { + + var values = []; + + for ( var key in parameters ) { + + values.push( parameters[ key ] ); + + } + + var geometry = Object.create( this.constructor.prototype ); + this.constructor.apply( geometry, values ); + return geometry; + + } + + return new this.constructor().copy( this ); + */ + + return new Geometry().copy( this ); + + }, + + copy: function ( source ) { + + this.vertices = []; + this.faces = []; + this.faceVertexUvs = [ [] ]; + this.colors = []; + + var vertices = source.vertices; + + for ( var i = 0, il = vertices.length; i < il; i ++ ) { + + this.vertices.push( vertices[ i ].clone() ); + + } + + var colors = source.colors; + + for ( var i = 0, il = colors.length; i < il; i ++ ) { + + this.colors.push( colors[ i ].clone() ); + + } + + var faces = source.faces; + + for ( var i = 0, il = faces.length; i < il; i ++ ) { + + this.faces.push( faces[ i ].clone() ); + + } + + for ( var i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) { + + var faceVertexUvs = source.faceVertexUvs[ i ]; + + if ( this.faceVertexUvs[ i ] === undefined ) { + + this.faceVertexUvs[ i ] = []; + + } + + for ( var j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) { + + var uvs = faceVertexUvs[ j ], uvsCopy = []; + + for ( var k = 0, kl = uvs.length; k < kl; k ++ ) { + + var uv = uvs[ k ]; + + uvsCopy.push( uv.clone() ); + + } + + this.faceVertexUvs[ i ].push( uvsCopy ); + + } + + } + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + } ); + + var count$3 = 0; + function GeometryIdCount() { return count$3++; } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function DirectGeometry() { + + Object.defineProperty( this, 'id', { value: GeometryIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.type = 'DirectGeometry'; + + this.indices = []; + this.vertices = []; + this.normals = []; + this.colors = []; + this.uvs = []; + this.uvs2 = []; + + this.groups = []; + + this.morphTargets = {}; + + this.skinWeights = []; + this.skinIndices = []; + + // this.lineDistances = []; + + this.boundingBox = null; + this.boundingSphere = null; + + // update flags + + this.verticesNeedUpdate = false; + this.normalsNeedUpdate = false; + this.colorsNeedUpdate = false; + this.uvsNeedUpdate = false; + this.groupsNeedUpdate = false; + + } + + Object.assign( DirectGeometry.prototype, EventDispatcher.prototype, { + + computeBoundingBox: Geometry.prototype.computeBoundingBox, + computeBoundingSphere: Geometry.prototype.computeBoundingSphere, + + computeFaceNormals: function () { + + console.warn( 'THREE.DirectGeometry: computeFaceNormals() is not a method of this type of geometry.' ); + + }, + + computeVertexNormals: function () { + + console.warn( 'THREE.DirectGeometry: computeVertexNormals() is not a method of this type of geometry.' ); + + }, + + computeGroups: function ( geometry ) { + + var group; + var groups = []; + var materialIndex; + + var faces = geometry.faces; + + for ( var i = 0; i < faces.length; i ++ ) { + + var face = faces[ i ]; + + // materials + + if ( face.materialIndex !== materialIndex ) { + + materialIndex = face.materialIndex; + + if ( group !== undefined ) { + + group.count = ( i * 3 ) - group.start; + groups.push( group ); + + } + + group = { + start: i * 3, + materialIndex: materialIndex + }; + + } + + } + + if ( group !== undefined ) { + + group.count = ( i * 3 ) - group.start; + groups.push( group ); + + } + + this.groups = groups; + + }, + + fromGeometry: function ( geometry ) { + + var faces = geometry.faces; + var vertices = geometry.vertices; + var faceVertexUvs = geometry.faceVertexUvs; + + var hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0; + var hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0; + + // morphs + + var morphTargets = geometry.morphTargets; + var morphTargetsLength = morphTargets.length; + + var morphTargetsPosition; + + if ( morphTargetsLength > 0 ) { + + morphTargetsPosition = []; + + for ( var i = 0; i < morphTargetsLength; i ++ ) { + + morphTargetsPosition[ i ] = []; + + } + + this.morphTargets.position = morphTargetsPosition; + + } + + var morphNormals = geometry.morphNormals; + var morphNormalsLength = morphNormals.length; + + var morphTargetsNormal; + + if ( morphNormalsLength > 0 ) { + + morphTargetsNormal = []; + + for ( var i = 0; i < morphNormalsLength; i ++ ) { + + morphTargetsNormal[ i ] = []; + + } + + this.morphTargets.normal = morphTargetsNormal; + + } + + // skins + + var skinIndices = geometry.skinIndices; + var skinWeights = geometry.skinWeights; + + var hasSkinIndices = skinIndices.length === vertices.length; + var hasSkinWeights = skinWeights.length === vertices.length; + + // + + for ( var i = 0; i < faces.length; i ++ ) { + + var face = faces[ i ]; + + this.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] ); + + var vertexNormals = face.vertexNormals; + + if ( vertexNormals.length === 3 ) { + + this.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] ); + + } else { + + var normal = face.normal; + + this.normals.push( normal, normal, normal ); + + } + + var vertexColors = face.vertexColors; + + if ( vertexColors.length === 3 ) { + + this.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] ); + + } else { + + var color = face.color; + + this.colors.push( color, color, color ); + + } + + if ( hasFaceVertexUv === true ) { + + var vertexUvs = faceVertexUvs[ 0 ][ i ]; + + if ( vertexUvs !== undefined ) { + + this.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] ); + + } else { + + console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i ); + + this.uvs.push( new Vector2(), new Vector2(), new Vector2() ); + + } + + } + + if ( hasFaceVertexUv2 === true ) { + + var vertexUvs = faceVertexUvs[ 1 ][ i ]; + + if ( vertexUvs !== undefined ) { + + this.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] ); + + } else { + + console.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i ); + + this.uvs2.push( new Vector2(), new Vector2(), new Vector2() ); + + } + + } + + // morphs + + for ( var j = 0; j < morphTargetsLength; j ++ ) { + + var morphTarget = morphTargets[ j ].vertices; + + morphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] ); + + } + + for ( var j = 0; j < morphNormalsLength; j ++ ) { + + var morphNormal = morphNormals[ j ].vertexNormals[ i ]; + + morphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c ); + + } + + // skins + + if ( hasSkinIndices ) { + + this.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] ); + + } + + if ( hasSkinWeights ) { + + this.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] ); + + } + + } + + this.computeGroups( geometry ); + + this.verticesNeedUpdate = geometry.verticesNeedUpdate; + this.normalsNeedUpdate = geometry.normalsNeedUpdate; + this.colorsNeedUpdate = geometry.colorsNeedUpdate; + this.uvsNeedUpdate = geometry.uvsNeedUpdate; + this.groupsNeedUpdate = geometry.groupsNeedUpdate; + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + function BufferGeometry() { + + Object.defineProperty( this, 'id', { value: GeometryIdCount() } ); + + this.uuid = _Math.generateUUID(); + + this.name = ''; + this.type = 'BufferGeometry'; + + this.index = null; + this.attributes = {}; + + this.morphAttributes = {}; + + this.groups = []; + + this.boundingBox = null; + this.boundingSphere = null; + + this.drawRange = { start: 0, count: Infinity }; + + } + + Object.assign( BufferGeometry.prototype, EventDispatcher.prototype, { + + isBufferGeometry: true, + + getIndex: function () { + + return this.index; + + }, + + setIndex: function ( index ) { + + this.index = index; + + }, + + addAttribute: function ( name, attribute ) { + + if ( (attribute && attribute.isBufferAttribute) === false && (attribute && attribute.isInterleavedBufferAttribute) === false ) { + + console.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' ); + + this.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) ); + + return; + + } + + if ( name === 'index' ) { + + console.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' ); + this.setIndex( attribute ); + + return; + + } + + this.attributes[ name ] = attribute; + + return this; + + }, + + getAttribute: function ( name ) { + + return this.attributes[ name ]; + + }, + + removeAttribute: function ( name ) { + + delete this.attributes[ name ]; + + return this; + + }, + + addGroup: function ( start, count, materialIndex ) { + + this.groups.push( { + + start: start, + count: count, + materialIndex: materialIndex !== undefined ? materialIndex : 0 + + } ); + + }, + + clearGroups: function () { + + this.groups = []; + + }, + + setDrawRange: function ( start, count ) { + + this.drawRange.start = start; + this.drawRange.count = count; + + }, + + applyMatrix: function ( matrix ) { + + var position = this.attributes.position; + + if ( position !== undefined ) { + + matrix.applyToVector3Array( position.array ); + position.needsUpdate = true; + + } + + var normal = this.attributes.normal; + + if ( normal !== undefined ) { + + var normalMatrix = new Matrix3().getNormalMatrix( matrix ); + + normalMatrix.applyToVector3Array( normal.array ); + normal.needsUpdate = true; + + } + + if ( this.boundingBox !== null ) { + + this.computeBoundingBox(); + + } + + if ( this.boundingSphere !== null ) { + + this.computeBoundingSphere(); + + } + + return this; + + }, + + rotateX: function () { + + // rotate geometry around world x-axis + + var m1; + + return function rotateX( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationX( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + rotateY: function () { + + // rotate geometry around world y-axis + + var m1; + + return function rotateY( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationY( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + rotateZ: function () { + + // rotate geometry around world z-axis + + var m1; + + return function rotateZ( angle ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeRotationZ( angle ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + translate: function () { + + // translate geometry + + var m1; + + return function translate( x, y, z ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeTranslation( x, y, z ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + scale: function () { + + // scale geometry + + var m1; + + return function scale( x, y, z ) { + + if ( m1 === undefined ) m1 = new Matrix4(); + + m1.makeScale( x, y, z ); + + this.applyMatrix( m1 ); + + return this; + + }; + + }(), + + lookAt: function () { + + var obj; + + return function lookAt( vector ) { + + if ( obj === undefined ) obj = new Object3D(); + + obj.lookAt( vector ); + + obj.updateMatrix(); + + this.applyMatrix( obj.matrix ); + + }; + + }(), + + center: function () { + + this.computeBoundingBox(); + + var offset = this.boundingBox.getCenter().negate(); + + this.translate( offset.x, offset.y, offset.z ); + + return offset; + + }, + + setFromObject: function ( object ) { + + // console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this ); + + var geometry = object.geometry; + + if ( (object && object.isPoints) || (object && object.isLine) ) { + + var positions = new Float32Attribute( geometry.vertices.length * 3, 3 ); + var colors = new Float32Attribute( geometry.colors.length * 3, 3 ); + + this.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) ); + this.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) ); + + if ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) { + + var lineDistances = new Float32Attribute( geometry.lineDistances.length, 1 ); + + this.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) ); + + } + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + } else if ( (object && object.isMesh) ) { + + if ( (geometry && geometry.isGeometry) ) { + + this.fromGeometry( geometry ); + + } + + } + + return this; + + }, + + updateFromObject: function ( object ) { + + var geometry = object.geometry; + + if ( (object && object.isMesh) ) { + + var direct = geometry.__directGeometry; + + if ( geometry.elementsNeedUpdate === true ) { + + direct = undefined; + geometry.elementsNeedUpdate = false; + + } + + if ( direct === undefined ) { + + return this.fromGeometry( geometry ); + + } + + direct.verticesNeedUpdate = geometry.verticesNeedUpdate; + direct.normalsNeedUpdate = geometry.normalsNeedUpdate; + direct.colorsNeedUpdate = geometry.colorsNeedUpdate; + direct.uvsNeedUpdate = geometry.uvsNeedUpdate; + direct.groupsNeedUpdate = geometry.groupsNeedUpdate; + + geometry.verticesNeedUpdate = false; + geometry.normalsNeedUpdate = false; + geometry.colorsNeedUpdate = false; + geometry.uvsNeedUpdate = false; + geometry.groupsNeedUpdate = false; + + geometry = direct; + + } + + var attribute; + + if ( geometry.verticesNeedUpdate === true ) { + + attribute = this.attributes.position; + + if ( attribute !== undefined ) { + + attribute.copyVector3sArray( geometry.vertices ); + attribute.needsUpdate = true; + + } + + geometry.verticesNeedUpdate = false; + + } + + if ( geometry.normalsNeedUpdate === true ) { + + attribute = this.attributes.normal; + + if ( attribute !== undefined ) { + + attribute.copyVector3sArray( geometry.normals ); + attribute.needsUpdate = true; + + } + + geometry.normalsNeedUpdate = false; + + } + + if ( geometry.colorsNeedUpdate === true ) { + + attribute = this.attributes.color; + + if ( attribute !== undefined ) { + + attribute.copyColorsArray( geometry.colors ); + attribute.needsUpdate = true; + + } + + geometry.colorsNeedUpdate = false; + + } + + if ( geometry.uvsNeedUpdate ) { + + attribute = this.attributes.uv; + + if ( attribute !== undefined ) { + + attribute.copyVector2sArray( geometry.uvs ); + attribute.needsUpdate = true; + + } + + geometry.uvsNeedUpdate = false; + + } + + if ( geometry.lineDistancesNeedUpdate ) { + + attribute = this.attributes.lineDistance; + + if ( attribute !== undefined ) { + + attribute.copyArray( geometry.lineDistances ); + attribute.needsUpdate = true; + + } + + geometry.lineDistancesNeedUpdate = false; + + } + + if ( geometry.groupsNeedUpdate ) { + + geometry.computeGroups( object.geometry ); + this.groups = geometry.groups; + + geometry.groupsNeedUpdate = false; + + } + + return this; + + }, + + fromGeometry: function ( geometry ) { + + geometry.__directGeometry = new DirectGeometry().fromGeometry( geometry ); + + return this.fromDirectGeometry( geometry.__directGeometry ); + + }, + + fromDirectGeometry: function ( geometry ) { + + var positions = new Float32Array( geometry.vertices.length * 3 ); + this.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) ); + + if ( geometry.normals.length > 0 ) { + + var normals = new Float32Array( geometry.normals.length * 3 ); + this.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) ); + + } + + if ( geometry.colors.length > 0 ) { + + var colors = new Float32Array( geometry.colors.length * 3 ); + this.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) ); + + } + + if ( geometry.uvs.length > 0 ) { + + var uvs = new Float32Array( geometry.uvs.length * 2 ); + this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) ); + + } + + if ( geometry.uvs2.length > 0 ) { + + var uvs2 = new Float32Array( geometry.uvs2.length * 2 ); + this.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) ); + + } + + if ( geometry.indices.length > 0 ) { + + var TypeArray = geometry.vertices.length > 65535 ? Uint32Array : Uint16Array; + var indices = new TypeArray( geometry.indices.length * 3 ); + this.setIndex( new BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) ); + + } + + // groups + + this.groups = geometry.groups; + + // morphs + + for ( var name in geometry.morphTargets ) { + + var array = []; + var morphTargets = geometry.morphTargets[ name ]; + + for ( var i = 0, l = morphTargets.length; i < l; i ++ ) { + + var morphTarget = morphTargets[ i ]; + + var attribute = new Float32Attribute( morphTarget.length * 3, 3 ); + + array.push( attribute.copyVector3sArray( morphTarget ) ); + + } + + this.morphAttributes[ name ] = array; + + } + + // skinning + + if ( geometry.skinIndices.length > 0 ) { + + var skinIndices = new Float32Attribute( geometry.skinIndices.length * 4, 4 ); + this.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) ); + + } + + if ( geometry.skinWeights.length > 0 ) { + + var skinWeights = new Float32Attribute( geometry.skinWeights.length * 4, 4 ); + this.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) ); + + } + + // + + if ( geometry.boundingSphere !== null ) { + + this.boundingSphere = geometry.boundingSphere.clone(); + + } + + if ( geometry.boundingBox !== null ) { + + this.boundingBox = geometry.boundingBox.clone(); + + } + + return this; + + }, + + computeBoundingBox: function () { + + if ( this.boundingBox === null ) { + + this.boundingBox = new Box3(); + + } + + var positions = this.attributes.position.array; + + if ( positions !== undefined ) { + + this.boundingBox.setFromArray( positions ); + + } else { + + this.boundingBox.makeEmpty(); + + } + + if ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The "position" attribute is likely to have NaN values.', this ); + + } + + }, + + computeBoundingSphere: function () { + + var box = new Box3(); + var vector = new Vector3(); + + return function computeBoundingSphere() { + + if ( this.boundingSphere === null ) { + + this.boundingSphere = new Sphere(); + + } + + var positions = this.attributes.position; + + if ( positions ) { + + var array = positions.array; + var center = this.boundingSphere.center; + + box.setFromArray( array ); + box.getCenter( center ); + + // hoping to find a boundingSphere with a radius smaller than the + // boundingSphere of the boundingBox: sqrt(3) smaller in the best case + + var maxRadiusSq = 0; + + for ( var i = 0, il = array.length; i < il; i += 3 ) { + + vector.fromArray( array, i ); + maxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) ); + + } + + this.boundingSphere.radius = Math.sqrt( maxRadiusSq ); + + if ( isNaN( this.boundingSphere.radius ) ) { + + console.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.', this ); + + } + + } + + }; + + }(), + + computeFaceNormals: function () { + + // backwards compatibility + + }, + + computeVertexNormals: function () { + + var index = this.index; + var attributes = this.attributes; + var groups = this.groups; + + if ( attributes.position ) { + + var positions = attributes.position.array; + + if ( attributes.normal === undefined ) { + + this.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) ); + + } else { + + // reset existing normals to zero + + var array = attributes.normal.array; + + for ( var i = 0, il = array.length; i < il; i ++ ) { + + array[ i ] = 0; + + } + + } + + var normals = attributes.normal.array; + + var vA, vB, vC, + + pA = new Vector3(), + pB = new Vector3(), + pC = new Vector3(), + + cb = new Vector3(), + ab = new Vector3(); + + // indexed elements + + if ( index ) { + + var indices = index.array; + + if ( groups.length === 0 ) { + + this.addGroup( 0, indices.length ); + + } + + for ( var j = 0, jl = groups.length; j < jl; ++ j ) { + + var group = groups[ j ]; + + var start = group.start; + var count = group.count; + + for ( var i = start, il = start + count; i < il; i += 3 ) { + + vA = indices[ i + 0 ] * 3; + vB = indices[ i + 1 ] * 3; + vC = indices[ i + 2 ] * 3; + + pA.fromArray( positions, vA ); + pB.fromArray( positions, vB ); + pC.fromArray( positions, vC ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + normals[ vA ] += cb.x; + normals[ vA + 1 ] += cb.y; + normals[ vA + 2 ] += cb.z; + + normals[ vB ] += cb.x; + normals[ vB + 1 ] += cb.y; + normals[ vB + 2 ] += cb.z; + + normals[ vC ] += cb.x; + normals[ vC + 1 ] += cb.y; + normals[ vC + 2 ] += cb.z; + + } + + } + + } else { + + // non-indexed elements (unconnected triangle soup) + + for ( var i = 0, il = positions.length; i < il; i += 9 ) { + + pA.fromArray( positions, i ); + pB.fromArray( positions, i + 3 ); + pC.fromArray( positions, i + 6 ); + + cb.subVectors( pC, pB ); + ab.subVectors( pA, pB ); + cb.cross( ab ); + + normals[ i ] = cb.x; + normals[ i + 1 ] = cb.y; + normals[ i + 2 ] = cb.z; + + normals[ i + 3 ] = cb.x; + normals[ i + 4 ] = cb.y; + normals[ i + 5 ] = cb.z; + + normals[ i + 6 ] = cb.x; + normals[ i + 7 ] = cb.y; + normals[ i + 8 ] = cb.z; + + } + + } + + this.normalizeNormals(); + + attributes.normal.needsUpdate = true; + + } + + }, + + merge: function ( geometry, offset ) { + + if ( (geometry && geometry.isBufferGeometry) === false ) { + + console.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry ); + return; + + } + + if ( offset === undefined ) offset = 0; + + var attributes = this.attributes; + + for ( var key in attributes ) { + + if ( geometry.attributes[ key ] === undefined ) continue; + + var attribute1 = attributes[ key ]; + var attributeArray1 = attribute1.array; + + var attribute2 = geometry.attributes[ key ]; + var attributeArray2 = attribute2.array; + + var attributeSize = attribute2.itemSize; + + for ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) { + + attributeArray1[ j ] = attributeArray2[ i ]; + + } + + } + + return this; + + }, + + normalizeNormals: function () { + + var normals = this.attributes.normal.array; + + var x, y, z, n; + + for ( var i = 0, il = normals.length; i < il; i += 3 ) { + + x = normals[ i ]; + y = normals[ i + 1 ]; + z = normals[ i + 2 ]; + + n = 1.0 / Math.sqrt( x * x + y * y + z * z ); + + normals[ i ] *= n; + normals[ i + 1 ] *= n; + normals[ i + 2 ] *= n; + + } + + }, + + toNonIndexed: function () { + + if ( this.index === null ) { + + console.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' ); + return this; + + } + + var geometry2 = new BufferGeometry(); + + var indices = this.index.array; + var attributes = this.attributes; + + for ( var name in attributes ) { + + var attribute = attributes[ name ]; + + var array = attribute.array; + var itemSize = attribute.itemSize; + + var array2 = new array.constructor( indices.length * itemSize ); + + var index = 0, index2 = 0; + + for ( var i = 0, l = indices.length; i < l; i ++ ) { + + index = indices[ i ] * itemSize; + + for ( var j = 0; j < itemSize; j ++ ) { + + array2[ index2 ++ ] = array[ index ++ ]; + + } + + } + + geometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) ); + + } + + return geometry2; + + }, + + toJSON: function () { + + var data = { + metadata: { + version: 4.4, + type: 'BufferGeometry', + generator: 'BufferGeometry.toJSON' + } + }; + + // standard BufferGeometry serialization + + data.uuid = this.uuid; + data.type = this.type; + if ( this.name !== '' ) data.name = this.name; + + if ( this.parameters !== undefined ) { + + var parameters = this.parameters; + + for ( var key in parameters ) { + + if ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ]; + + } + + return data; + + } + + data.data = { attributes: {} }; + + var index = this.index; + + if ( index !== null ) { + + var array = Array.prototype.slice.call( index.array ); + + data.data.index = { + type: index.array.constructor.name, + array: array + }; + + } + + var attributes = this.attributes; + + for ( var key in attributes ) { + + var attribute = attributes[ key ]; + + var array = Array.prototype.slice.call( attribute.array ); + + data.data.attributes[ key ] = { + itemSize: attribute.itemSize, + type: attribute.array.constructor.name, + array: array, + normalized: attribute.normalized + }; + + } + + var groups = this.groups; + + if ( groups.length > 0 ) { + + data.data.groups = JSON.parse( JSON.stringify( groups ) ); + + } + + var boundingSphere = this.boundingSphere; + + if ( boundingSphere !== null ) { + + data.data.boundingSphere = { + center: boundingSphere.center.toArray(), + radius: boundingSphere.radius + }; + + } + + return data; + + }, + + clone: function () { + + /* + // Handle primitives + + var parameters = this.parameters; + + if ( parameters !== undefined ) { + + var values = []; + + for ( var key in parameters ) { + + values.push( parameters[ key ] ); + + } + + var geometry = Object.create( this.constructor.prototype ); + this.constructor.apply( geometry, values ); + return geometry; + + } + + return new this.constructor().copy( this ); + */ + + return new BufferGeometry().copy( this ); + + }, + + copy: function ( source ) { + + var index = source.index; + + if ( index !== null ) { + + this.setIndex( index.clone() ); + + } + + var attributes = source.attributes; + + for ( var name in attributes ) { + + var attribute = attributes[ name ]; + this.addAttribute( name, attribute.clone() ); + + } + + var groups = source.groups; + + for ( var i = 0, l = groups.length; i < l; i ++ ) { + + var group = groups[ i ]; + this.addGroup( group.start, group.count, group.materialIndex ); + + } + + return this; + + }, + + dispose: function () { + + this.dispatchEvent( { type: 'dispose' } ); + + } + + } ); + + BufferGeometry.MaxIndex = 65535; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * @author mikael emtinger / http://gomo.se/ + * @author jonobr1 / http://jonobr1.com/ + */ + + function Mesh( geometry, material ) { + + Object3D.call( this ); + + this.type = 'Mesh'; + + this.geometry = geometry !== undefined ? geometry : new BufferGeometry(); + this.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } ); + + this.drawMode = TrianglesDrawMode; + + this.updateMorphTargets(); + + } + + Mesh.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Mesh, + + isMesh: true, + + setDrawMode: function ( value ) { + + this.drawMode = value; + + }, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.drawMode = source.drawMode; + + return this; + + }, + + updateMorphTargets: function () { + + var morphTargets = this.geometry.morphTargets; + + if ( morphTargets !== undefined && morphTargets.length > 0 ) { + + this.morphTargetInfluences = []; + this.morphTargetDictionary = {}; + + for ( var m = 0, ml = morphTargets.length; m < ml; m ++ ) { + + this.morphTargetInfluences.push( 0 ); + this.morphTargetDictionary[ morphTargets[ m ].name ] = m; + + } + + } + + }, + + raycast: ( function () { + + var inverseMatrix = new Matrix4(); + var ray = new Ray(); + var sphere = new Sphere(); + + var vA = new Vector3(); + var vB = new Vector3(); + var vC = new Vector3(); + + var tempA = new Vector3(); + var tempB = new Vector3(); + var tempC = new Vector3(); + + var uvA = new Vector2(); + var uvB = new Vector2(); + var uvC = new Vector2(); + + var barycoord = new Vector3(); + + var intersectionPoint = new Vector3(); + var intersectionPointWorld = new Vector3(); + + function uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) { + + Triangle.barycoordFromPoint( point, p1, p2, p3, barycoord ); + + uv1.multiplyScalar( barycoord.x ); + uv2.multiplyScalar( barycoord.y ); + uv3.multiplyScalar( barycoord.z ); + + uv1.add( uv2 ).add( uv3 ); + + return uv1.clone(); + + } + + function checkIntersection( object, raycaster, ray, pA, pB, pC, point ) { + + var intersect; + var material = object.material; + + if ( material.side === BackSide ) { + + intersect = ray.intersectTriangle( pC, pB, pA, true, point ); + + } else { + + intersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point ); + + } + + if ( intersect === null ) return null; + + intersectionPointWorld.copy( point ); + intersectionPointWorld.applyMatrix4( object.matrixWorld ); + + var distance = raycaster.ray.origin.distanceTo( intersectionPointWorld ); + + if ( distance < raycaster.near || distance > raycaster.far ) return null; + + return { + distance: distance, + point: intersectionPointWorld.clone(), + object: object + }; + + } + + function checkBufferGeometryIntersection( object, raycaster, ray, positions, uvs, a, b, c ) { + + vA.fromArray( positions, a * 3 ); + vB.fromArray( positions, b * 3 ); + vC.fromArray( positions, c * 3 ); + + var intersection = checkIntersection( object, raycaster, ray, vA, vB, vC, intersectionPoint ); + + if ( intersection ) { + + if ( uvs ) { + + uvA.fromArray( uvs, a * 2 ); + uvB.fromArray( uvs, b * 2 ); + uvC.fromArray( uvs, c * 2 ); + + intersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC ); + + } + + intersection.face = new Face3( a, b, c, Triangle.normal( vA, vB, vC ) ); + intersection.faceIndex = a; + + } + + return intersection; + + } + + return function raycast( raycaster, intersects ) { + + var geometry = this.geometry; + var material = this.material; + var matrixWorld = this.matrixWorld; + + if ( material === undefined ) return; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + sphere.copy( geometry.boundingSphere ); + sphere.applyMatrix4( matrixWorld ); + + if ( raycaster.ray.intersectsSphere( sphere ) === false ) return; + + // + + inverseMatrix.getInverse( matrixWorld ); + ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix ); + + // Check boundingBox before continuing + + if ( geometry.boundingBox !== null ) { + + if ( ray.intersectsBox( geometry.boundingBox ) === false ) return; + + } + + var uvs, intersection; + + if ( (geometry && geometry.isBufferGeometry) ) { + + var a, b, c; + var index = geometry.index; + var attributes = geometry.attributes; + var positions = attributes.position.array; + + if ( attributes.uv !== undefined ) { + + uvs = attributes.uv.array; + + } + + if ( index !== null ) { + + var indices = index.array; + + for ( var i = 0, l = indices.length; i < l; i += 3 ) { + + a = indices[ i ]; + b = indices[ i + 1 ]; + c = indices[ i + 2 ]; + + intersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c ); + + if ( intersection ) { + + intersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics + intersects.push( intersection ); + + } + + } + + } else { + + + for ( var i = 0, l = positions.length; i < l; i += 9 ) { + + a = i / 3; + b = a + 1; + c = a + 2; + + intersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c ); + + if ( intersection ) { + + intersection.index = a; // triangle number in positions buffer semantics + intersects.push( intersection ); + + } + + } + + } + + } else if ( (geometry && geometry.isGeometry) ) { + + var fvA, fvB, fvC; + var isFaceMaterial = (material && material.isMultiMaterial); + var materials = isFaceMaterial === true ? material.materials : null; + + var vertices = geometry.vertices; + var faces = geometry.faces; + var faceVertexUvs = geometry.faceVertexUvs[ 0 ]; + if ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs; + + for ( var f = 0, fl = faces.length; f < fl; f ++ ) { + + var face = faces[ f ]; + var faceMaterial = isFaceMaterial === true ? materials[ face.materialIndex ] : material; + + if ( faceMaterial === undefined ) continue; + + fvA = vertices[ face.a ]; + fvB = vertices[ face.b ]; + fvC = vertices[ face.c ]; + + if ( faceMaterial.morphTargets === true ) { + + var morphTargets = geometry.morphTargets; + var morphInfluences = this.morphTargetInfluences; + + vA.set( 0, 0, 0 ); + vB.set( 0, 0, 0 ); + vC.set( 0, 0, 0 ); + + for ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) { + + var influence = morphInfluences[ t ]; + + if ( influence === 0 ) continue; + + var targets = morphTargets[ t ].vertices; + + vA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence ); + vB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence ); + vC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence ); + + } + + vA.add( fvA ); + vB.add( fvB ); + vC.add( fvC ); + + fvA = vA; + fvB = vB; + fvC = vC; + + } + + intersection = checkIntersection( this, raycaster, ray, fvA, fvB, fvC, intersectionPoint ); + + if ( intersection ) { + + if ( uvs ) { + + var uvs_f = uvs[ f ]; + uvA.copy( uvs_f[ 0 ] ); + uvB.copy( uvs_f[ 1 ] ); + uvC.copy( uvs_f[ 2 ] ); + + intersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC ); + + } + + intersection.face = face; + intersection.faceIndex = f; + intersects.push( intersection ); + + } + + } + + } + + }; + + }() ), + + clone: function () { + + return new this.constructor( this.geometry, this.material ).copy( this ); + + } + + } ); + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) { + + BufferGeometry.call( this ); + + this.type = 'BoxBufferGeometry'; + + this.parameters = { + width: width, + height: height, + depth: depth, + widthSegments: widthSegments, + heightSegments: heightSegments, + depthSegments: depthSegments + }; + + var scope = this; + + // segments + widthSegments = Math.floor( widthSegments ) || 1; + heightSegments = Math.floor( heightSegments ) || 1; + depthSegments = Math.floor( depthSegments ) || 1; + + // these are used to calculate buffer length + var vertexCount = calculateVertexCount( widthSegments, heightSegments, depthSegments ); + var indexCount = calculateIndexCount( widthSegments, heightSegments, depthSegments ); + + // buffers + var indices = new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ); + var vertices = new Float32Array( vertexCount * 3 ); + var normals = new Float32Array( vertexCount * 3 ); + var uvs = new Float32Array( vertexCount * 2 ); + + // offset variables + var vertexBufferOffset = 0; + var uvBufferOffset = 0; + var indexBufferOffset = 0; + var numberOfVertices = 0; + + // group variables + var groupStart = 0; + + // build each side of the box geometry + buildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px + buildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx + buildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py + buildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny + buildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz + buildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz + + // build geometry + this.setIndex( new BufferAttribute( indices, 1 ) ); + this.addAttribute( 'position', new BufferAttribute( vertices, 3 ) ); + this.addAttribute( 'normal', new BufferAttribute( normals, 3 ) ); + this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) ); + + // helper functions + + function calculateVertexCount( w, h, d ) { + + var vertices = 0; + + // calculate the amount of vertices for each side (plane) + vertices += (w + 1) * (h + 1) * 2; // xy + vertices += (w + 1) * (d + 1) * 2; // xz + vertices += (d + 1) * (h + 1) * 2; // zy + + return vertices; + + } + + function calculateIndexCount( w, h, d ) { + + var index = 0; + + // calculate the amount of squares for each side + index += w * h * 2; // xy + index += w * d * 2; // xz + index += d * h * 2; // zy + + return index * 6; // two triangles per square => six vertices per square + + } + + function buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) { + + var segmentWidth = width / gridX; + var segmentHeight = height / gridY; + + var widthHalf = width / 2; + var heightHalf = height / 2; + var depthHalf = depth / 2; + + var gridX1 = gridX + 1; + var gridY1 = gridY + 1; + + var vertexCounter = 0; + var groupCount = 0; + + var vector = new Vector3(); + + // generate vertices, normals and uvs + + for ( var iy = 0; iy < gridY1; iy ++ ) { + + var y = iy * segmentHeight - heightHalf; + + for ( var ix = 0; ix < gridX1; ix ++ ) { + + var x = ix * segmentWidth - widthHalf; + + // set values to correct vector component + vector[ u ] = x * udir; + vector[ v ] = y * vdir; + vector[ w ] = depthHalf; + + // now apply vector to vertex buffer + vertices[ vertexBufferOffset ] = vector.x; + vertices[ vertexBufferOffset + 1 ] = vector.y; + vertices[ vertexBufferOffset + 2 ] = vector.z; + + // set values to correct vector component + vector[ u ] = 0; + vector[ v ] = 0; + vector[ w ] = depth > 0 ? 1 : - 1; + + // now apply vector to normal buffer + normals[ vertexBufferOffset ] = vector.x; + normals[ vertexBufferOffset + 1 ] = vector.y; + normals[ vertexBufferOffset + 2 ] = vector.z; + + // uvs + uvs[ uvBufferOffset ] = ix / gridX; + uvs[ uvBufferOffset + 1 ] = 1 - ( iy / gridY ); + + // update offsets and counters + vertexBufferOffset += 3; + uvBufferOffset += 2; + vertexCounter += 1; + + } + + } + + // 1. you need three indices to draw a single face + // 2. a single segment consists of two faces + // 3. so we need to generate six (2*3) indices per segment + + for ( iy = 0; iy < gridY; iy ++ ) { + + for ( ix = 0; ix < gridX; ix ++ ) { + + // indices + var a = numberOfVertices + ix + gridX1 * iy; + var b = numberOfVertices + ix + gridX1 * ( iy + 1 ); + var c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 ); + var d = numberOfVertices + ( ix + 1 ) + gridX1 * iy; + + // face one + indices[ indexBufferOffset ] = a; + indices[ indexBufferOffset + 1 ] = b; + indices[ indexBufferOffset + 2 ] = d; + + // face two + indices[ indexBufferOffset + 3 ] = b; + indices[ indexBufferOffset + 4 ] = c; + indices[ indexBufferOffset + 5 ] = d; + + // update offsets and counters + indexBufferOffset += 6; + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + scope.addGroup( groupStart, groupCount, materialIndex ); + + // calculate new start value for groups + groupStart += groupCount; + + // update total number of vertices + numberOfVertices += vertexCounter; + + } + + } + + BoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + BoxBufferGeometry.prototype.constructor = BoxBufferGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as + */ + + function PlaneBufferGeometry( width, height, widthSegments, heightSegments ) { + + BufferGeometry.call( this ); + + this.type = 'PlaneBufferGeometry'; + + this.parameters = { + width: width, + height: height, + widthSegments: widthSegments, + heightSegments: heightSegments + }; + + var width_half = width / 2; + var height_half = height / 2; + + var gridX = Math.floor( widthSegments ) || 1; + var gridY = Math.floor( heightSegments ) || 1; + + var gridX1 = gridX + 1; + var gridY1 = gridY + 1; + + var segment_width = width / gridX; + var segment_height = height / gridY; + + var vertices = new Float32Array( gridX1 * gridY1 * 3 ); + var normals = new Float32Array( gridX1 * gridY1 * 3 ); + var uvs = new Float32Array( gridX1 * gridY1 * 2 ); + + var offset = 0; + var offset2 = 0; + + for ( var iy = 0; iy < gridY1; iy ++ ) { + + var y = iy * segment_height - height_half; + + for ( var ix = 0; ix < gridX1; ix ++ ) { + + var x = ix * segment_width - width_half; + + vertices[ offset ] = x; + vertices[ offset + 1 ] = - y; + + normals[ offset + 2 ] = 1; + + uvs[ offset2 ] = ix / gridX; + uvs[ offset2 + 1 ] = 1 - ( iy / gridY ); + + offset += 3; + offset2 += 2; + + } + + } + + offset = 0; + + var indices = new ( ( vertices.length / 3 ) > 65535 ? Uint32Array : Uint16Array )( gridX * gridY * 6 ); + + for ( var iy = 0; iy < gridY; iy ++ ) { + + for ( var ix = 0; ix < gridX; ix ++ ) { + + var a = ix + gridX1 * iy; + var b = ix + gridX1 * ( iy + 1 ); + var c = ( ix + 1 ) + gridX1 * ( iy + 1 ); + var d = ( ix + 1 ) + gridX1 * iy; + + indices[ offset ] = a; + indices[ offset + 1 ] = b; + indices[ offset + 2 ] = d; + + indices[ offset + 3 ] = b; + indices[ offset + 4 ] = c; + indices[ offset + 5 ] = d; + + offset += 6; + + } + + } + + this.setIndex( new BufferAttribute( indices, 1 ) ); + this.addAttribute( 'position', new BufferAttribute( vertices, 3 ) ); + this.addAttribute( 'normal', new BufferAttribute( normals, 3 ) ); + this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) ); + + } + + PlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + PlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author mikael emtinger / http://gomo.se/ + * @author WestLangley / http://github.com/WestLangley + */ + + function Camera() { + + Object3D.call( this ); + + this.type = 'Camera'; + + this.matrixWorldInverse = new Matrix4(); + this.projectionMatrix = new Matrix4(); + + } + + Camera.prototype = Object.create( Object3D.prototype ); + Camera.prototype.constructor = Camera; + + Camera.prototype.isCamera = true; + + Camera.prototype.getWorldDirection = function () { + + var quaternion = new Quaternion(); + + return function getWorldDirection( optionalTarget ) { + + var result = optionalTarget || new Vector3(); + + this.getWorldQuaternion( quaternion ); + + return result.set( 0, 0, - 1 ).applyQuaternion( quaternion ); + + }; + + }(); + + Camera.prototype.lookAt = function () { + + // This routine does not support cameras with rotated and/or translated parent(s) + + var m1 = new Matrix4(); + + return function lookAt( vector ) { + + m1.lookAt( this.position, vector, this.up ); + + this.quaternion.setFromRotationMatrix( m1 ); + + }; + + }(); + + Camera.prototype.clone = function () { + + return new this.constructor().copy( this ); + + }; + + Camera.prototype.copy = function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.matrixWorldInverse.copy( source.matrixWorldInverse ); + this.projectionMatrix.copy( source.projectionMatrix ); + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author greggman / http://games.greggman.com/ + * @author zz85 / http://www.lab4games.net/zz85/blog + * @author tschw + */ + + function PerspectiveCamera( fov, aspect, near, far ) { + + Camera.call( this ); + + this.type = 'PerspectiveCamera'; + + this.fov = fov !== undefined ? fov : 50; + this.zoom = 1; + + this.near = near !== undefined ? near : 0.1; + this.far = far !== undefined ? far : 2000; + this.focus = 10; + + this.aspect = aspect !== undefined ? aspect : 1; + this.view = null; + + this.filmGauge = 35; // width of the film (default in millimeters) + this.filmOffset = 0; // horizontal film offset (same unit as gauge) + + this.updateProjectionMatrix(); + + } + + PerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), { + + constructor: PerspectiveCamera, + + isPerspectiveCamera: true, + + copy: function ( source ) { + + Camera.prototype.copy.call( this, source ); + + this.fov = source.fov; + this.zoom = source.zoom; + + this.near = source.near; + this.far = source.far; + this.focus = source.focus; + + this.aspect = source.aspect; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + this.filmGauge = source.filmGauge; + this.filmOffset = source.filmOffset; + + return this; + + }, + + /** + * Sets the FOV by focal length in respect to the current .filmGauge. + * + * The default film gauge is 35, so that the focal length can be specified for + * a 35mm (full frame) camera. + * + * Values for focal length and film gauge must have the same unit. + */ + setFocalLength: function ( focalLength ) { + + // see http://www.bobatkins.com/photography/technical/field_of_view.html + var vExtentSlope = 0.5 * this.getFilmHeight() / focalLength; + + this.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope ); + this.updateProjectionMatrix(); + + }, + + /** + * Calculates the focal length from the current .fov and .filmGauge. + */ + getFocalLength: function () { + + var vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov ); + + return 0.5 * this.getFilmHeight() / vExtentSlope; + + }, + + getEffectiveFOV: function () { + + return _Math.RAD2DEG * 2 * Math.atan( + Math.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom ); + + }, + + getFilmWidth: function () { + + // film not completely covered in portrait format (aspect < 1) + return this.filmGauge * Math.min( this.aspect, 1 ); + + }, + + getFilmHeight: function () { + + // film not completely covered in landscape format (aspect > 1) + return this.filmGauge / Math.max( this.aspect, 1 ); + + }, + + /** + * Sets an offset in a larger frustum. This is useful for multi-window or + * multi-monitor/multi-machine setups. + * + * For example, if you have 3x2 monitors and each monitor is 1920x1080 and + * the monitors are in grid like this + * + * +---+---+---+ + * | A | B | C | + * +---+---+---+ + * | D | E | F | + * +---+---+---+ + * + * then for each monitor you would call it like this + * + * var w = 1920; + * var h = 1080; + * var fullWidth = w * 3; + * var fullHeight = h * 2; + * + * --A-- + * camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h ); + * --B-- + * camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h ); + * --C-- + * camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h ); + * --D-- + * camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h ); + * --E-- + * camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h ); + * --F-- + * camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h ); + * + * Note there is no reason monitors have to be the same size or in a grid. + */ + setViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) { + + this.aspect = fullWidth / fullHeight; + + this.view = { + fullWidth: fullWidth, + fullHeight: fullHeight, + offsetX: x, + offsetY: y, + width: width, + height: height + }; + + this.updateProjectionMatrix(); + + }, + + clearViewOffset: function() { + + this.view = null; + this.updateProjectionMatrix(); + + }, + + updateProjectionMatrix: function () { + + var near = this.near, + top = near * Math.tan( + _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom, + height = 2 * top, + width = this.aspect * height, + left = - 0.5 * width, + view = this.view; + + if ( view !== null ) { + + var fullWidth = view.fullWidth, + fullHeight = view.fullHeight; + + left += view.offsetX * width / fullWidth; + top -= view.offsetY * height / fullHeight; + width *= view.width / fullWidth; + height *= view.height / fullHeight; + + } + + var skew = this.filmOffset; + if ( skew !== 0 ) left += near * skew / this.getFilmWidth(); + + this.projectionMatrix.makeFrustum( + left, left + width, top - height, top, near, this.far ); + + }, + + toJSON: function ( meta ) { + + var data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.fov = this.fov; + data.object.zoom = this.zoom; + + data.object.near = this.near; + data.object.far = this.far; + data.object.focus = this.focus; + + data.object.aspect = this.aspect; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + data.object.filmGauge = this.filmGauge; + data.object.filmOffset = this.filmOffset; + + return data; + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + * @author arose / http://github.com/arose + */ + + function OrthographicCamera( left, right, top, bottom, near, far ) { + + Camera.call( this ); + + this.type = 'OrthographicCamera'; + + this.zoom = 1; + this.view = null; + + this.left = left; + this.right = right; + this.top = top; + this.bottom = bottom; + + this.near = ( near !== undefined ) ? near : 0.1; + this.far = ( far !== undefined ) ? far : 2000; + + this.updateProjectionMatrix(); + + } + + OrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), { + + constructor: OrthographicCamera, + + isOrthographicCamera: true, + + copy: function ( source ) { + + Camera.prototype.copy.call( this, source ); + + this.left = source.left; + this.right = source.right; + this.top = source.top; + this.bottom = source.bottom; + this.near = source.near; + this.far = source.far; + + this.zoom = source.zoom; + this.view = source.view === null ? null : Object.assign( {}, source.view ); + + return this; + + }, + + setViewOffset: function( fullWidth, fullHeight, x, y, width, height ) { + + this.view = { + fullWidth: fullWidth, + fullHeight: fullHeight, + offsetX: x, + offsetY: y, + width: width, + height: height + }; + + this.updateProjectionMatrix(); + + }, + + clearViewOffset: function() { + + this.view = null; + this.updateProjectionMatrix(); + + }, + + updateProjectionMatrix: function () { + + var dx = ( this.right - this.left ) / ( 2 * this.zoom ); + var dy = ( this.top - this.bottom ) / ( 2 * this.zoom ); + var cx = ( this.right + this.left ) / 2; + var cy = ( this.top + this.bottom ) / 2; + + var left = cx - dx; + var right = cx + dx; + var top = cy + dy; + var bottom = cy - dy; + + if ( this.view !== null ) { + + var zoomW = this.zoom / ( this.view.width / this.view.fullWidth ); + var zoomH = this.zoom / ( this.view.height / this.view.fullHeight ); + var scaleW = ( this.right - this.left ) / this.view.width; + var scaleH = ( this.top - this.bottom ) / this.view.height; + + left += scaleW * ( this.view.offsetX / zoomW ); + right = left + scaleW * ( this.view.width / zoomW ); + top -= scaleH * ( this.view.offsetY / zoomH ); + bottom = top - scaleH * ( this.view.height / zoomH ); + + } + + this.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far ); + + }, + + toJSON: function ( meta ) { + + var data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.zoom = this.zoom; + data.object.left = this.left; + data.object.right = this.right; + data.object.top = this.top; + data.object.bottom = this.bottom; + data.object.near = this.near; + data.object.far = this.far; + + if ( this.view !== null ) data.object.view = Object.assign( {}, this.view ); + + return data; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLIndexedBufferRenderer( gl, extensions, infoRender ) { + + var mode; + + function setMode( value ) { + + mode = value; + + } + + var type, size; + + function setIndex( index ) { + + if ( index.array instanceof Uint32Array && extensions.get( 'OES_element_index_uint' ) ) { + + type = gl.UNSIGNED_INT; + size = 4; + + } else { + + type = gl.UNSIGNED_SHORT; + size = 2; + + } + + } + + function render( start, count ) { + + gl.drawElements( mode, count, type, start * size ); + + infoRender.calls ++; + infoRender.vertices += count; + + if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3; + + } + + function renderInstances( geometry, start, count ) { + + var extension = extensions.get( 'ANGLE_instanced_arrays' ); + + if ( extension === null ) { + + console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + extension.drawElementsInstancedANGLE( mode, count, type, start * size, geometry.maxInstancedCount ); + + infoRender.calls ++; + infoRender.vertices += count * geometry.maxInstancedCount; + + if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3; + + } + + return { + + setMode: setMode, + setIndex: setIndex, + render: render, + renderInstances: renderInstances + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLBufferRenderer( gl, extensions, infoRender ) { + + var mode; + + function setMode( value ) { + + mode = value; + + } + + function render( start, count ) { + + gl.drawArrays( mode, start, count ); + + infoRender.calls ++; + infoRender.vertices += count; + + if ( mode === gl.TRIANGLES ) infoRender.faces += count / 3; + + } + + function renderInstances( geometry ) { + + var extension = extensions.get( 'ANGLE_instanced_arrays' ); + + if ( extension === null ) { + + console.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + var position = geometry.attributes.position; + + var count = 0; + + if ( (position && position.isInterleavedBufferAttribute) ) { + + count = position.data.count; + + extension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount ); + + } else { + + count = position.count; + + extension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount ); + + } + + infoRender.calls ++; + infoRender.vertices += count * geometry.maxInstancedCount; + + if ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3; + + } + + return { + setMode: setMode, + render: render, + renderInstances: renderInstances + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLLights() { + + var lights = {}; + + return { + + get: function ( light ) { + + if ( lights[ light.id ] !== undefined ) { + + return lights[ light.id ]; + + } + + var uniforms; + + switch ( light.type ) { + + case 'DirectionalLight': + uniforms = { + direction: new Vector3(), + color: new Color(), + + shadow: false, + shadowBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'SpotLight': + uniforms = { + position: new Vector3(), + direction: new Vector3(), + color: new Color(), + distance: 0, + coneCos: 0, + penumbraCos: 0, + decay: 0, + + shadow: false, + shadowBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'PointLight': + uniforms = { + position: new Vector3(), + color: new Color(), + distance: 0, + decay: 0, + + shadow: false, + shadowBias: 0, + shadowRadius: 1, + shadowMapSize: new Vector2() + }; + break; + + case 'HemisphereLight': + uniforms = { + direction: new Vector3(), + skyColor: new Color(), + groundColor: new Color() + }; + break; + + } + + lights[ light.id ] = uniforms; + + return uniforms; + + } + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function addLineNumbers( string ) { + + var lines = string.split( '\n' ); + + for ( var i = 0; i < lines.length; i ++ ) { + + lines[ i ] = ( i + 1 ) + ': ' + lines[ i ]; + + } + + return lines.join( '\n' ); + + } + + function WebGLShader( gl, type, string ) { + + var shader = gl.createShader( type ); + + gl.shaderSource( shader, string ); + gl.compileShader( shader ); + + if ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) { + + console.error( 'THREE.WebGLShader: Shader couldn\'t compile.' ); + + } + + if ( gl.getShaderInfoLog( shader ) !== '' ) { + + console.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) ); + + } + + // --enable-privileged-webgl-extension + // console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) ); + + return shader; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + var programIdCount = 0; + + function getEncodingComponents( encoding ) { + + switch ( encoding ) { + + case LinearEncoding: + return [ 'Linear','( value )' ]; + case sRGBEncoding: + return [ 'sRGB','( value )' ]; + case RGBEEncoding: + return [ 'RGBE','( value )' ]; + case RGBM7Encoding: + return [ 'RGBM','( value, 7.0 )' ]; + case RGBM16Encoding: + return [ 'RGBM','( value, 16.0 )' ]; + case RGBDEncoding: + return [ 'RGBD','( value, 256.0 )' ]; + case GammaEncoding: + return [ 'Gamma','( value, float( GAMMA_FACTOR ) )' ]; + default: + throw new Error( 'unsupported encoding: ' + encoding ); + + } + + } + + function getTexelDecodingFunction( functionName, encoding ) { + + var components = getEncodingComponents( encoding ); + return "vec4 " + functionName + "( vec4 value ) { return " + components[ 0 ] + "ToLinear" + components[ 1 ] + "; }"; + + } + + function getTexelEncodingFunction( functionName, encoding ) { + + var components = getEncodingComponents( encoding ); + return "vec4 " + functionName + "( vec4 value ) { return LinearTo" + components[ 0 ] + components[ 1 ] + "; }"; + + } + + function getToneMappingFunction( functionName, toneMapping ) { + + var toneMappingName; + + switch ( toneMapping ) { + + case LinearToneMapping: + toneMappingName = "Linear"; + break; + + case ReinhardToneMapping: + toneMappingName = "Reinhard"; + break; + + case Uncharted2ToneMapping: + toneMappingName = "Uncharted2"; + break; + + case CineonToneMapping: + toneMappingName = "OptimizedCineon"; + break; + + default: + throw new Error( 'unsupported toneMapping: ' + toneMapping ); + + } + + return "vec3 " + functionName + "( vec3 color ) { return " + toneMappingName + "ToneMapping( color ); }"; + + } + + function generateExtensions( extensions, parameters, rendererExtensions ) { + + extensions = extensions || {}; + + var chunks = [ + ( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '', + ( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '', + ( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '', + ( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : '', + ]; + + return chunks.filter( filterEmptyLine ).join( '\n' ); + + } + + function generateDefines( defines ) { + + var chunks = []; + + for ( var name in defines ) { + + var value = defines[ name ]; + + if ( value === false ) continue; + + chunks.push( '#define ' + name + ' ' + value ); + + } + + return chunks.join( '\n' ); + + } + + function fetchAttributeLocations( gl, program, identifiers ) { + + var attributes = {}; + + var n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES ); + + for ( var i = 0; i < n; i ++ ) { + + var info = gl.getActiveAttrib( program, i ); + var name = info.name; + + // console.log("THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:", name, i ); + + attributes[ name ] = gl.getAttribLocation( program, name ); + + } + + return attributes; + + } + + function filterEmptyLine( string ) { + + return string !== ''; + + } + + function replaceLightNums( string, parameters ) { + + return string + .replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights ) + .replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights ) + .replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights ) + .replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights ); + + } + + function parseIncludes( string ) { + + var pattern = /#include +<([\w\d.]+)>/g; + + function replace( match, include ) { + + var replace = ShaderChunk[ include ]; + + if ( replace === undefined ) { + + throw new Error( 'Can not resolve #include <' + include + '>' ); + + } + + return parseIncludes( replace ); + + } + + return string.replace( pattern, replace ); + + } + + function unrollLoops( string ) { + + var pattern = /for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g; + + function replace( match, start, end, snippet ) { + + var unroll = ''; + + for ( var i = parseInt( start ); i < parseInt( end ); i ++ ) { + + unroll += snippet.replace( /\[ i \]/g, '[ ' + i + ' ]' ); + + } + + return unroll; + + } + + return string.replace( pattern, replace ); + + } + + function WebGLProgram( renderer, code, material, parameters ) { + + var gl = renderer.context; + + var extensions = material.extensions; + var defines = material.defines; + + var vertexShader = material.__webglShader.vertexShader; + var fragmentShader = material.__webglShader.fragmentShader; + + var shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC'; + + if ( parameters.shadowMapType === PCFShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF'; + + } else if ( parameters.shadowMapType === PCFSoftShadowMap ) { + + shadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT'; + + } + + var envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + var envMapModeDefine = 'ENVMAP_MODE_REFLECTION'; + var envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY'; + + if ( parameters.envMap ) { + + switch ( material.envMap.mapping ) { + + case CubeReflectionMapping: + case CubeRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE'; + break; + + case CubeUVReflectionMapping: + case CubeUVRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV'; + break; + + case EquirectangularReflectionMapping: + case EquirectangularRefractionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_EQUIREC'; + break; + + case SphericalReflectionMapping: + envMapTypeDefine = 'ENVMAP_TYPE_SPHERE'; + break; + + } + + switch ( material.envMap.mapping ) { + + case CubeRefractionMapping: + case EquirectangularRefractionMapping: + envMapModeDefine = 'ENVMAP_MODE_REFRACTION'; + break; + + } + + switch ( material.combine ) { + + case MultiplyOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY'; + break; + + case MixOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_MIX'; + break; + + case AddOperation: + envMapBlendingDefine = 'ENVMAP_BLENDING_ADD'; + break; + + } + + } + + var gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0; + + // console.log( 'building new program ' ); + + // + + var customExtensions = generateExtensions( extensions, parameters, renderer.extensions ); + + var customDefines = generateDefines( defines ); + + // + + var program = gl.createProgram(); + + var prefixVertex, prefixFragment; + + if ( material.isRawShaderMaterial ) { + + prefixVertex = [ + + customDefines, + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + prefixFragment = [ + + customExtensions, + customDefines, + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + } else { + + prefixVertex = [ + + 'precision ' + parameters.precision + ' float;', + 'precision ' + parameters.precision + ' int;', + + '#define SHADER_NAME ' + material.__webglShader.name, + + customDefines, + + parameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '', + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + '#define MAX_BONES ' + parameters.maxBones, + + parameters.map ? '#define USE_MAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + parameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '', + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + parameters.vertexColors ? '#define USE_COLOR' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.skinning ? '#define USE_SKINNING' : '', + parameters.useVertexTexture ? '#define BONE_TEXTURE' : '', + + parameters.morphTargets ? '#define USE_MORPHTARGETS' : '', + parameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '', + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + '#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes, + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + 'uniform mat4 modelMatrix;', + 'uniform mat4 modelViewMatrix;', + 'uniform mat4 projectionMatrix;', + 'uniform mat4 viewMatrix;', + 'uniform mat3 normalMatrix;', + 'uniform vec3 cameraPosition;', + + 'attribute vec3 position;', + 'attribute vec3 normal;', + 'attribute vec2 uv;', + + '#ifdef USE_COLOR', + + ' attribute vec3 color;', + + '#endif', + + '#ifdef USE_MORPHTARGETS', + + ' attribute vec3 morphTarget0;', + ' attribute vec3 morphTarget1;', + ' attribute vec3 morphTarget2;', + ' attribute vec3 morphTarget3;', + + ' #ifdef USE_MORPHNORMALS', + + ' attribute vec3 morphNormal0;', + ' attribute vec3 morphNormal1;', + ' attribute vec3 morphNormal2;', + ' attribute vec3 morphNormal3;', + + ' #else', + + ' attribute vec3 morphTarget4;', + ' attribute vec3 morphTarget5;', + ' attribute vec3 morphTarget6;', + ' attribute vec3 morphTarget7;', + + ' #endif', + + '#endif', + + '#ifdef USE_SKINNING', + + ' attribute vec4 skinIndex;', + ' attribute vec4 skinWeight;', + + '#endif', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + prefixFragment = [ + + customExtensions, + + 'precision ' + parameters.precision + ' float;', + 'precision ' + parameters.precision + ' int;', + + '#define SHADER_NAME ' + material.__webglShader.name, + + customDefines, + + parameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '', + + '#define GAMMA_FACTOR ' + gammaFactorDefine, + + ( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '', + ( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '', + + parameters.map ? '#define USE_MAP' : '', + parameters.envMap ? '#define USE_ENVMAP' : '', + parameters.envMap ? '#define ' + envMapTypeDefine : '', + parameters.envMap ? '#define ' + envMapModeDefine : '', + parameters.envMap ? '#define ' + envMapBlendingDefine : '', + parameters.lightMap ? '#define USE_LIGHTMAP' : '', + parameters.aoMap ? '#define USE_AOMAP' : '', + parameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '', + parameters.bumpMap ? '#define USE_BUMPMAP' : '', + parameters.normalMap ? '#define USE_NORMALMAP' : '', + parameters.specularMap ? '#define USE_SPECULARMAP' : '', + parameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '', + parameters.metalnessMap ? '#define USE_METALNESSMAP' : '', + parameters.alphaMap ? '#define USE_ALPHAMAP' : '', + parameters.vertexColors ? '#define USE_COLOR' : '', + + parameters.flatShading ? '#define FLAT_SHADED' : '', + + parameters.doubleSided ? '#define DOUBLE_SIDED' : '', + parameters.flipSided ? '#define FLIP_SIDED' : '', + + '#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes, + '#define UNION_CLIPPING_PLANES ' + (parameters.numClippingPlanes - parameters.numClipIntersection), + + parameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '', + parameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '', + + parameters.premultipliedAlpha ? "#define PREMULTIPLIED_ALPHA" : '', + + parameters.physicallyCorrectLights ? "#define PHYSICALLY_CORRECT_LIGHTS" : '', + + parameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '', + parameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '', + + parameters.envMap && renderer.extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '', + + 'uniform mat4 viewMatrix;', + 'uniform vec3 cameraPosition;', + + ( parameters.toneMapping !== NoToneMapping ) ? "#define TONE_MAPPING" : '', + ( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below + ( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( "toneMapping", parameters.toneMapping ) : '', + + ( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below + parameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '', + parameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '', + parameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '', + parameters.outputEncoding ? getTexelEncodingFunction( "linearToOutputTexel", parameters.outputEncoding ) : '', + + parameters.depthPacking ? "#define DEPTH_PACKING " + material.depthPacking : '', + + '\n' + + ].filter( filterEmptyLine ).join( '\n' ); + + } + + vertexShader = parseIncludes( vertexShader, parameters ); + vertexShader = replaceLightNums( vertexShader, parameters ); + + fragmentShader = parseIncludes( fragmentShader, parameters ); + fragmentShader = replaceLightNums( fragmentShader, parameters ); + + if ( ! material.isShaderMaterial ) { + + vertexShader = unrollLoops( vertexShader ); + fragmentShader = unrollLoops( fragmentShader ); + + } + + var vertexGlsl = prefixVertex + vertexShader; + var fragmentGlsl = prefixFragment + fragmentShader; + + // console.log( '*VERTEX*', vertexGlsl ); + // console.log( '*FRAGMENT*', fragmentGlsl ); + + var glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl ); + var glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl ); + + gl.attachShader( program, glVertexShader ); + gl.attachShader( program, glFragmentShader ); + + // Force a particular attribute to index 0. + + if ( material.index0AttributeName !== undefined ) { + + gl.bindAttribLocation( program, 0, material.index0AttributeName ); + + } else if ( parameters.morphTargets === true ) { + + // programs with morphTargets displace position out of attribute 0 + gl.bindAttribLocation( program, 0, 'position' ); + + } + + gl.linkProgram( program ); + + var programLog = gl.getProgramInfoLog( program ); + var vertexLog = gl.getShaderInfoLog( glVertexShader ); + var fragmentLog = gl.getShaderInfoLog( glFragmentShader ); + + var runnable = true; + var haveDiagnostics = true; + + // console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) ); + // console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) ); + + if ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) { + + runnable = false; + + console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog ); + + } else if ( programLog !== '' ) { + + console.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog ); + + } else if ( vertexLog === '' || fragmentLog === '' ) { + + haveDiagnostics = false; + + } + + if ( haveDiagnostics ) { + + this.diagnostics = { + + runnable: runnable, + material: material, + + programLog: programLog, + + vertexShader: { + + log: vertexLog, + prefix: prefixVertex + + }, + + fragmentShader: { + + log: fragmentLog, + prefix: prefixFragment + + } + + }; + + } + + // clean up + + gl.deleteShader( glVertexShader ); + gl.deleteShader( glFragmentShader ); + + // set up caching for uniform locations + + var cachedUniforms; + + this.getUniforms = function() { + + if ( cachedUniforms === undefined ) { + + cachedUniforms = + new WebGLUniforms( gl, program, renderer ); + + } + + return cachedUniforms; + + }; + + // set up caching for attribute locations + + var cachedAttributes; + + this.getAttributes = function() { + + if ( cachedAttributes === undefined ) { + + cachedAttributes = fetchAttributeLocations( gl, program ); + + } + + return cachedAttributes; + + }; + + // free resource + + this.destroy = function() { + + gl.deleteProgram( program ); + this.program = undefined; + + }; + + // DEPRECATED + + Object.defineProperties( this, { + + uniforms: { + get: function() { + + console.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' ); + return this.getUniforms(); + + } + }, + + attributes: { + get: function() { + + console.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' ); + return this.getAttributes(); + + } + } + + } ); + + + // + + this.id = programIdCount ++; + this.code = code; + this.usedTimes = 1; + this.program = program; + this.vertexShader = glVertexShader; + this.fragmentShader = glFragmentShader; + + return this; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLPrograms( renderer, capabilities ) { + + var programs = []; + + var shaderIDs = { + MeshDepthMaterial: 'depth', + MeshNormalMaterial: 'normal', + MeshBasicMaterial: 'basic', + MeshLambertMaterial: 'lambert', + MeshPhongMaterial: 'phong', + MeshStandardMaterial: 'physical', + MeshPhysicalMaterial: 'physical', + LineBasicMaterial: 'basic', + LineDashedMaterial: 'dashed', + PointsMaterial: 'points' + }; + + var parameterNames = [ + "precision", "supportsVertexTextures", "map", "mapEncoding", "envMap", "envMapMode", "envMapEncoding", + "lightMap", "aoMap", "emissiveMap", "emissiveMapEncoding", "bumpMap", "normalMap", "displacementMap", "specularMap", + "roughnessMap", "metalnessMap", + "alphaMap", "combine", "vertexColors", "fog", "useFog", "fogExp", + "flatShading", "sizeAttenuation", "logarithmicDepthBuffer", "skinning", + "maxBones", "useVertexTexture", "morphTargets", "morphNormals", + "maxMorphTargets", "maxMorphNormals", "premultipliedAlpha", + "numDirLights", "numPointLights", "numSpotLights", "numHemiLights", + "shadowMapEnabled", "shadowMapType", "toneMapping", 'physicallyCorrectLights', + "alphaTest", "doubleSided", "flipSided", "numClippingPlanes", "numClipIntersection", "depthPacking" + ]; + + + function allocateBones( object ) { + + if ( capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture ) { + + return 1024; + + } else { + + // default for when object is not specified + // ( for example when prebuilding shader to be used with multiple objects ) + // + // - leave some extra space for other uniforms + // - limit here is ANGLE's 254 max uniform vectors + // (up to 54 should be safe) + + var nVertexUniforms = capabilities.maxVertexUniforms; + var nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 ); + + var maxBones = nVertexMatrices; + + if ( object !== undefined && (object && object.isSkinnedMesh) ) { + + maxBones = Math.min( object.skeleton.bones.length, maxBones ); + + if ( maxBones < object.skeleton.bones.length ) { + + console.warn( 'WebGLRenderer: too many bones - ' + object.skeleton.bones.length + ', this GPU supports just ' + maxBones + ' (try OpenGL instead of ANGLE)' ); + + } + + } + + return maxBones; + + } + + } + + function getTextureEncodingFromMap( map, gammaOverrideLinear ) { + + var encoding; + + if ( ! map ) { + + encoding = LinearEncoding; + + } else if ( (map && map.isTexture) ) { + + encoding = map.encoding; + + } else if ( (map && map.isWebGLRenderTarget) ) { + + console.warn( "THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead." ); + encoding = map.texture.encoding; + + } + + // add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point. + if ( encoding === LinearEncoding && gammaOverrideLinear ) { + + encoding = GammaEncoding; + + } + + return encoding; + + } + + this.getParameters = function ( material, lights, fog, nClipPlanes, nClipIntersection, object ) { + + var shaderID = shaderIDs[ material.type ]; + + // heuristics to create shader parameters according to lights in the scene + // (not to blow over maxLights budget) + + var maxBones = allocateBones( object ); + var precision = renderer.getPrecision(); + + if ( material.precision !== null ) { + + precision = capabilities.getMaxPrecision( material.precision ); + + if ( precision !== material.precision ) { + + console.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' ); + + } + + } + + var currentRenderTarget = renderer.getCurrentRenderTarget(); + + var parameters = { + + shaderID: shaderID, + + precision: precision, + supportsVertexTextures: capabilities.vertexTextures, + outputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ), + map: !! material.map, + mapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ), + envMap: !! material.envMap, + envMapMode: material.envMap && material.envMap.mapping, + envMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ), + envMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ), + lightMap: !! material.lightMap, + aoMap: !! material.aoMap, + emissiveMap: !! material.emissiveMap, + emissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ), + bumpMap: !! material.bumpMap, + normalMap: !! material.normalMap, + displacementMap: !! material.displacementMap, + roughnessMap: !! material.roughnessMap, + metalnessMap: !! material.metalnessMap, + specularMap: !! material.specularMap, + alphaMap: !! material.alphaMap, + + combine: material.combine, + + vertexColors: material.vertexColors, + + fog: !! fog, + useFog: material.fog, + fogExp: (fog && fog.isFogExp2), + + flatShading: material.shading === FlatShading, + + sizeAttenuation: material.sizeAttenuation, + logarithmicDepthBuffer: capabilities.logarithmicDepthBuffer, + + skinning: material.skinning, + maxBones: maxBones, + useVertexTexture: capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture, + + morphTargets: material.morphTargets, + morphNormals: material.morphNormals, + maxMorphTargets: renderer.maxMorphTargets, + maxMorphNormals: renderer.maxMorphNormals, + + numDirLights: lights.directional.length, + numPointLights: lights.point.length, + numSpotLights: lights.spot.length, + numHemiLights: lights.hemi.length, + + numClippingPlanes: nClipPlanes, + numClipIntersection: nClipIntersection, + + shadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && lights.shadows.length > 0, + shadowMapType: renderer.shadowMap.type, + + toneMapping: renderer.toneMapping, + physicallyCorrectLights: renderer.physicallyCorrectLights, + + premultipliedAlpha: material.premultipliedAlpha, + + alphaTest: material.alphaTest, + doubleSided: material.side === DoubleSide, + flipSided: material.side === BackSide, + + depthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false + + }; + + return parameters; + + }; + + this.getProgramCode = function ( material, parameters ) { + + var array = []; + + if ( parameters.shaderID ) { + + array.push( parameters.shaderID ); + + } else { + + array.push( material.fragmentShader ); + array.push( material.vertexShader ); + + } + + if ( material.defines !== undefined ) { + + for ( var name in material.defines ) { + + array.push( name ); + array.push( material.defines[ name ] ); + + } + + } + + for ( var i = 0; i < parameterNames.length; i ++ ) { + + array.push( parameters[ parameterNames[ i ] ] ); + + } + + return array.join(); + + }; + + this.acquireProgram = function ( material, parameters, code ) { + + var program; + + // Check if code has been already compiled + for ( var p = 0, pl = programs.length; p < pl; p ++ ) { + + var programInfo = programs[ p ]; + + if ( programInfo.code === code ) { + + program = programInfo; + ++ program.usedTimes; + + break; + + } + + } + + if ( program === undefined ) { + + program = new WebGLProgram( renderer, code, material, parameters ); + programs.push( program ); + + } + + return program; + + }; + + this.releaseProgram = function( program ) { + + if ( -- program.usedTimes === 0 ) { + + // Remove from unordered set + var i = programs.indexOf( program ); + programs[ i ] = programs[ programs.length - 1 ]; + programs.pop(); + + // Free WebGL resources + program.destroy(); + + } + + }; + + // Exposed for resource monitoring & error feedback via renderer.info: + this.programs = programs; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLGeometries( gl, properties, info ) { + + var geometries = {}; + + function onGeometryDispose( event ) { + + var geometry = event.target; + var buffergeometry = geometries[ geometry.id ]; + + if ( buffergeometry.index !== null ) { + + deleteAttribute( buffergeometry.index ); + + } + + deleteAttributes( buffergeometry.attributes ); + + geometry.removeEventListener( 'dispose', onGeometryDispose ); + + delete geometries[ geometry.id ]; + + // TODO + + var property = properties.get( geometry ); + + if ( property.wireframe ) { + + deleteAttribute( property.wireframe ); + + } + + properties.delete( geometry ); + + var bufferproperty = properties.get( buffergeometry ); + + if ( bufferproperty.wireframe ) { + + deleteAttribute( bufferproperty.wireframe ); + + } + + properties.delete( buffergeometry ); + + // + + info.memory.geometries --; + + } + + function getAttributeBuffer( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) { + + return properties.get( attribute.data ).__webglBuffer; + + } + + return properties.get( attribute ).__webglBuffer; + + } + + function deleteAttribute( attribute ) { + + var buffer = getAttributeBuffer( attribute ); + + if ( buffer !== undefined ) { + + gl.deleteBuffer( buffer ); + removeAttributeBuffer( attribute ); + + } + + } + + function deleteAttributes( attributes ) { + + for ( var name in attributes ) { + + deleteAttribute( attributes[ name ] ); + + } + + } + + function removeAttributeBuffer( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) { + + properties.delete( attribute.data ); + + } else { + + properties.delete( attribute ); + + } + + } + + return { + + get: function ( object ) { + + var geometry = object.geometry; + + if ( geometries[ geometry.id ] !== undefined ) { + + return geometries[ geometry.id ]; + + } + + geometry.addEventListener( 'dispose', onGeometryDispose ); + + var buffergeometry; + + if ( geometry.isBufferGeometry ) { + + buffergeometry = geometry; + + } else if ( geometry.isGeometry ) { + + if ( geometry._bufferGeometry === undefined ) { + + geometry._bufferGeometry = new BufferGeometry().setFromObject( object ); + + } + + buffergeometry = geometry._bufferGeometry; + + } + + geometries[ geometry.id ] = buffergeometry; + + info.memory.geometries ++; + + return buffergeometry; + + } + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLObjects( gl, properties, info ) { + + var geometries = new WebGLGeometries( gl, properties, info ); + + // + + function update( object ) { + + // TODO: Avoid updating twice (when using shadowMap). Maybe add frame counter. + + var geometry = geometries.get( object ); + + if ( object.geometry.isGeometry ) { + + geometry.updateFromObject( object ); + + } + + var index = geometry.index; + var attributes = geometry.attributes; + + if ( index !== null ) { + + updateAttribute( index, gl.ELEMENT_ARRAY_BUFFER ); + + } + + for ( var name in attributes ) { + + updateAttribute( attributes[ name ], gl.ARRAY_BUFFER ); + + } + + // morph targets + + var morphAttributes = geometry.morphAttributes; + + for ( var name in morphAttributes ) { + + var array = morphAttributes[ name ]; + + for ( var i = 0, l = array.length; i < l; i ++ ) { + + updateAttribute( array[ i ], gl.ARRAY_BUFFER ); + + } + + } + + return geometry; + + } + + function updateAttribute( attribute, bufferType ) { + + var data = ( attribute.isInterleavedBufferAttribute ) ? attribute.data : attribute; + + var attributeProperties = properties.get( data ); + + if ( attributeProperties.__webglBuffer === undefined ) { + + createBuffer( attributeProperties, data, bufferType ); + + } else if ( attributeProperties.version !== data.version ) { + + updateBuffer( attributeProperties, data, bufferType ); + + } + + } + + function createBuffer( attributeProperties, data, bufferType ) { + + attributeProperties.__webglBuffer = gl.createBuffer(); + gl.bindBuffer( bufferType, attributeProperties.__webglBuffer ); + + var usage = data.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW; + + gl.bufferData( bufferType, data.array, usage ); + + attributeProperties.version = data.version; + + } + + function updateBuffer( attributeProperties, data, bufferType ) { + + gl.bindBuffer( bufferType, attributeProperties.__webglBuffer ); + + if ( data.dynamic === false ) { + + gl.bufferData( bufferType, data.array, gl.STATIC_DRAW ); + + } else if ( data.updateRange.count === - 1 ) { + + // Not using update ranges + + gl.bufferSubData( bufferType, 0, data.array ); + + } else if ( data.updateRange.count === 0 ) { + + console.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' ); + + } else { + + gl.bufferSubData( bufferType, data.updateRange.offset * data.array.BYTES_PER_ELEMENT, + data.array.subarray( data.updateRange.offset, data.updateRange.offset + data.updateRange.count ) ); + + data.updateRange.count = 0; // reset range + + } + + attributeProperties.version = data.version; + + } + + function getAttributeBuffer( attribute ) { + + if ( attribute.isInterleavedBufferAttribute ) { + + return properties.get( attribute.data ).__webglBuffer; + + } + + return properties.get( attribute ).__webglBuffer; + + } + + function getWireframeAttribute( geometry ) { + + var property = properties.get( geometry ); + + if ( property.wireframe !== undefined ) { + + return property.wireframe; + + } + + var indices = []; + + var index = geometry.index; + var attributes = geometry.attributes; + var position = attributes.position; + + // console.time( 'wireframe' ); + + if ( index !== null ) { + + var edges = {}; + var array = index.array; + + for ( var i = 0, l = array.length; i < l; i += 3 ) { + + var a = array[ i + 0 ]; + var b = array[ i + 1 ]; + var c = array[ i + 2 ]; + + indices.push( a, b, b, c, c, a ); + + } + + } else { + + var array = attributes.position.array; + + for ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) { + + var a = i + 0; + var b = i + 1; + var c = i + 2; + + indices.push( a, b, b, c, c, a ); + + } + + } + + // console.timeEnd( 'wireframe' ); + + var TypeArray = position.count > 65535 ? Uint32Array : Uint16Array; + var attribute = new BufferAttribute( new TypeArray( indices ), 1 ); + + updateAttribute( attribute, gl.ELEMENT_ARRAY_BUFFER ); + + property.wireframe = attribute; + + return attribute; + + } + + return { + + getAttributeBuffer: getAttributeBuffer, + getWireframeAttribute: getWireframeAttribute, + + update: update + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, info ) { + + var _infoMemory = info.memory; + var _isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && _gl instanceof WebGL2RenderingContext ); + + // + + function clampToMaxSize( image, maxSize ) { + + if ( image.width > maxSize || image.height > maxSize ) { + + // Warning: Scaling through the canvas will only work with images that use + // premultiplied alpha. + + var scale = maxSize / Math.max( image.width, image.height ); + + var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + canvas.width = Math.floor( image.width * scale ); + canvas.height = Math.floor( image.height * scale ); + + var context = canvas.getContext( '2d' ); + context.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height ); + + console.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image ); + + return canvas; + + } + + return image; + + } + + function isPowerOfTwo( image ) { + + return _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height ); + + } + + function makePowerOfTwo( image ) { + + if ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement ) { + + var canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + canvas.width = _Math.nearestPowerOfTwo( image.width ); + canvas.height = _Math.nearestPowerOfTwo( image.height ); + + var context = canvas.getContext( '2d' ); + context.drawImage( image, 0, 0, canvas.width, canvas.height ); + + console.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image ); + + return canvas; + + } + + return image; + + } + + function textureNeedsPowerOfTwo( texture ) { + + if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) return true; + if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) return true; + + return false; + + } + + // Fallback filters for non-power-of-2 textures + + function filterFallback( f ) { + + if ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) { + + return _gl.NEAREST; + + } + + return _gl.LINEAR; + + } + + // + + function onTextureDispose( event ) { + + var texture = event.target; + + texture.removeEventListener( 'dispose', onTextureDispose ); + + deallocateTexture( texture ); + + _infoMemory.textures --; + + + } + + function onRenderTargetDispose( event ) { + + var renderTarget = event.target; + + renderTarget.removeEventListener( 'dispose', onRenderTargetDispose ); + + deallocateRenderTarget( renderTarget ); + + _infoMemory.textures --; + + } + + // + + function deallocateTexture( texture ) { + + var textureProperties = properties.get( texture ); + + if ( texture.image && textureProperties.__image__webglTextureCube ) { + + // cube texture + + _gl.deleteTexture( textureProperties.__image__webglTextureCube ); + + } else { + + // 2D texture + + if ( textureProperties.__webglInit === undefined ) return; + + _gl.deleteTexture( textureProperties.__webglTexture ); + + } + + // remove all webgl properties + properties.delete( texture ); + + } + + function deallocateRenderTarget( renderTarget ) { + + var renderTargetProperties = properties.get( renderTarget ); + var textureProperties = properties.get( renderTarget.texture ); + + if ( ! renderTarget ) return; + + if ( textureProperties.__webglTexture !== undefined ) { + + _gl.deleteTexture( textureProperties.__webglTexture ); + + } + + if ( renderTarget.depthTexture ) { + + renderTarget.depthTexture.dispose(); + + } + + if ( (renderTarget && renderTarget.isWebGLRenderTargetCube) ) { + + for ( var i = 0; i < 6; i ++ ) { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] ); + + } + + } else { + + _gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer ); + if ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer ); + + } + + properties.delete( renderTarget.texture ); + properties.delete( renderTarget ); + + } + + // + + + + function setTexture2D( texture, slot ) { + + var textureProperties = properties.get( texture ); + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + var image = texture.image; + + if ( image === undefined ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture ); + + } else if ( image.complete === false ) { + + console.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture ); + + } else { + + uploadTexture( textureProperties, texture, slot ); + return; + + } + + } + + state.activeTexture( _gl.TEXTURE0 + slot ); + state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture ); + + } + + function setTextureCube( texture, slot ) { + + var textureProperties = properties.get( texture ); + + if ( texture.image.length === 6 ) { + + if ( texture.version > 0 && textureProperties.__version !== texture.version ) { + + if ( ! textureProperties.__image__webglTextureCube ) { + + texture.addEventListener( 'dispose', onTextureDispose ); + + textureProperties.__image__webglTextureCube = _gl.createTexture(); + + _infoMemory.textures ++; + + } + + state.activeTexture( _gl.TEXTURE0 + slot ); + state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube ); + + _gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY ); + + var isCompressed = (texture && texture.isCompressedTexture); + var isDataTexture = (texture.image[ 0 ] && texture.image[ 0 ].isDataTexture); + + var cubeImage = []; + + for ( var i = 0; i < 6; i ++ ) { + + if ( ! isCompressed && ! isDataTexture ) { + + cubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize ); + + } else { + + cubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ]; + + } + + } + + var image = cubeImage[ 0 ], + isPowerOfTwoImage = isPowerOfTwo( image ), + glFormat = paramThreeToGL( texture.format ), + glType = paramThreeToGL( texture.type ); + + setTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage ); + + for ( var i = 0; i < 6; i ++ ) { + + if ( ! isCompressed ) { + + if ( isDataTexture ) { + + state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data ); + + } else { + + state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] ); + + } + + } else { + + var mipmap, mipmaps = cubeImage[ i ].mipmaps; + + for ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) { + + mipmap = mipmaps[ j ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) { + + state.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()" ); + + } + + } else { + + state.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + } + + } + + if ( texture.generateMipmaps && isPowerOfTwoImage ) { + + _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP ); + + } + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } else { + + state.activeTexture( _gl.TEXTURE0 + slot ); + state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube ); + + } + + } + + } + + function setTextureCubeDynamic( texture, slot ) { + + state.activeTexture( _gl.TEXTURE0 + slot ); + state.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture ); + + } + + function setTextureParameters( textureType, texture, isPowerOfTwoImage ) { + + var extension; + + if ( isPowerOfTwoImage ) { + + _gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, paramThreeToGL( texture.wrapS ) ); + _gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, paramThreeToGL( texture.wrapT ) ); + + _gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, paramThreeToGL( texture.magFilter ) ); + _gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, paramThreeToGL( texture.minFilter ) ); + + } else { + + _gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE ); + _gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE ); + + if ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture ); + + } + + _gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) ); + _gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) ); + + if ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) { + + console.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture ); + + } + + } + + extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + if ( extension ) { + + if ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return; + if ( texture.type === HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return; + + if ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) { + + _gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) ); + properties.get( texture ).__currentAnisotropy = texture.anisotropy; + + } + + } + + } + + function uploadTexture( textureProperties, texture, slot ) { + + if ( textureProperties.__webglInit === undefined ) { + + textureProperties.__webglInit = true; + + texture.addEventListener( 'dispose', onTextureDispose ); + + textureProperties.__webglTexture = _gl.createTexture(); + + _infoMemory.textures ++; + + } + + state.activeTexture( _gl.TEXTURE0 + slot ); + state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture ); + + _gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY ); + _gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha ); + _gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment ); + + var image = clampToMaxSize( texture.image, capabilities.maxTextureSize ); + + if ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) { + + image = makePowerOfTwo( image ); + + } + + var isPowerOfTwoImage = isPowerOfTwo( image ), + glFormat = paramThreeToGL( texture.format ), + glType = paramThreeToGL( texture.type ); + + setTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage ); + + var mipmap, mipmaps = texture.mipmaps; + + if ( (texture && texture.isDepthTexture) ) { + + // populate depth texture with dummy data + + var internalFormat = _gl.DEPTH_COMPONENT; + + if ( texture.type === FloatType ) { + + if ( !_isWebGL2 ) throw new Error('Float Depth Texture only supported in WebGL2.0'); + internalFormat = _gl.DEPTH_COMPONENT32F; + + } else if ( _isWebGL2 ) { + + // WebGL 2.0 requires signed internalformat for glTexImage2D + internalFormat = _gl.DEPTH_COMPONENT16; + + } + + // Depth stencil textures need the DEPTH_STENCIL internal format + // (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/) + if ( texture.format === DepthStencilFormat ) { + + internalFormat = _gl.DEPTH_STENCIL; + + } + + state.texImage2D( _gl.TEXTURE_2D, 0, internalFormat, image.width, image.height, 0, glFormat, glType, null ); + + } else if ( (texture && texture.isDataTexture) ) { + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && isPowerOfTwoImage ) { + + for ( var i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + texture.generateMipmaps = false; + + } else { + + state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data ); + + } + + } else if ( (texture && texture.isCompressedTexture) ) { + + for ( var i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + + if ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) { + + if ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) { + + state.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data ); + + } else { + + console.warn( "THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()" ); + + } + + } else { + + state.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data ); + + } + + } + + } else { + + // regular Texture (image, video, canvas) + + // use manually created mipmaps if available + // if there are no manual mipmaps + // set 0 level mipmap and then use GL to generate other mipmap levels + + if ( mipmaps.length > 0 && isPowerOfTwoImage ) { + + for ( var i = 0, il = mipmaps.length; i < il; i ++ ) { + + mipmap = mipmaps[ i ]; + state.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap ); + + } + + texture.generateMipmaps = false; + + } else { + + state.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, image ); + + } + + } + + if ( texture.generateMipmaps && isPowerOfTwoImage ) _gl.generateMipmap( _gl.TEXTURE_2D ); + + textureProperties.__version = texture.version; + + if ( texture.onUpdate ) texture.onUpdate( texture ); + + } + + // Render targets + + // Setup storage for target texture and bind it to correct framebuffer + function setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) { + + var glFormat = paramThreeToGL( renderTarget.texture.format ); + var glType = paramThreeToGL( renderTarget.texture.type ); + state.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null ); + _gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer ); + _gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 ); + _gl.bindFramebuffer( _gl.FRAMEBUFFER, null ); + + } + + // Setup storage for internal depth/stencil buffers and bind to correct framebuffer + function setupRenderBufferStorage( renderbuffer, renderTarget ) { + + _gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer ); + + if ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) { + + _gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height ); + _gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer ); + + } else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) { + + _gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height ); + _gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer ); + + } else { + + // FIXME: We don't support !depth !stencil + _gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height ); + + } + + _gl.bindRenderbuffer( _gl.RENDERBUFFER, null ); + + } + + // Setup resources for a Depth Texture for a FBO (needs an extension) + function setupDepthTexture( framebuffer, renderTarget ) { + + var isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) ); + if ( isCube ) throw new Error('Depth Texture with cube render targets is not supported!'); + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer ); + + if ( !( (renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture) ) ) { + + throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture'); + + } + + // upload an empty depth texture with framebuffer size + if ( !properties.get( renderTarget.depthTexture ).__webglTexture || + renderTarget.depthTexture.image.width !== renderTarget.width || + renderTarget.depthTexture.image.height !== renderTarget.height ) { + renderTarget.depthTexture.image.width = renderTarget.width; + renderTarget.depthTexture.image.height = renderTarget.height; + renderTarget.depthTexture.needsUpdate = true; + } + + setTexture2D( renderTarget.depthTexture, 0 ); + + var webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture; + + if ( renderTarget.depthTexture.format === DepthFormat ) { + + _gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 ); + + } else if ( renderTarget.depthTexture.format === DepthStencilFormat ) { + + _gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 ); + + } else { + + throw new Error('Unknown depthTexture format') + + } + + } + + // Setup GL resources for a non-texture depth buffer + function setupDepthRenderbuffer( renderTarget ) { + + var renderTargetProperties = properties.get( renderTarget ); + + var isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) ); + + if ( renderTarget.depthTexture ) { + + if ( isCube ) throw new Error('target.depthTexture not supported in Cube render targets'); + + setupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget ); + + } else { + + if ( isCube ) { + + renderTargetProperties.__webglDepthbuffer = []; + + for ( var i = 0; i < 6; i ++ ) { + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] ); + renderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget ); + + } + + } else { + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer ); + renderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer(); + setupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget ); + + } + + } + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, null ); + + } + + // Set up GL resources for the render target + function setupRenderTarget( renderTarget ) { + + var renderTargetProperties = properties.get( renderTarget ); + var textureProperties = properties.get( renderTarget.texture ); + + renderTarget.addEventListener( 'dispose', onRenderTargetDispose ); + + textureProperties.__webglTexture = _gl.createTexture(); + + _infoMemory.textures ++; + + var isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) ); + var isTargetPowerOfTwo = isPowerOfTwo( renderTarget ); + + // Setup framebuffer + + if ( isCube ) { + + renderTargetProperties.__webglFramebuffer = []; + + for ( var i = 0; i < 6; i ++ ) { + + renderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer(); + + } + + } else { + + renderTargetProperties.__webglFramebuffer = _gl.createFramebuffer(); + + } + + // Setup color buffer + + if ( isCube ) { + + state.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture ); + setTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo ); + + for ( var i = 0; i < 6; i ++ ) { + + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i ); + + } + + if ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP ); + state.bindTexture( _gl.TEXTURE_CUBE_MAP, null ); + + } else { + + state.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture ); + setTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo ); + setupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D ); + + if ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_2D ); + state.bindTexture( _gl.TEXTURE_2D, null ); + + } + + // Setup depth and stencil buffers + + if ( renderTarget.depthBuffer ) { + + setupDepthRenderbuffer( renderTarget ); + + } + + } + + function updateRenderTargetMipmap( renderTarget ) { + + var texture = renderTarget.texture; + + if ( texture.generateMipmaps && isPowerOfTwo( renderTarget ) && + texture.minFilter !== NearestFilter && + texture.minFilter !== LinearFilter ) { + + var target = (renderTarget && renderTarget.isWebGLRenderTargetCube) ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D; + var webglTexture = properties.get( texture ).__webglTexture; + + state.bindTexture( target, webglTexture ); + _gl.generateMipmap( target ); + state.bindTexture( target, null ); + + } + + } + + this.setTexture2D = setTexture2D; + this.setTextureCube = setTextureCube; + this.setTextureCubeDynamic = setTextureCubeDynamic; + this.setupRenderTarget = setupRenderTarget; + this.updateRenderTargetMipmap = updateRenderTargetMipmap; + + } + + /** + * @author fordacious / fordacious.github.io + */ + + function WebGLProperties() { + + var properties = {}; + + return { + + get: function ( object ) { + + var uuid = object.uuid; + var map = properties[ uuid ]; + + if ( map === undefined ) { + + map = {}; + properties[ uuid ] = map; + + } + + return map; + + }, + + delete: function ( object ) { + + delete properties[ object.uuid ]; + + }, + + clear: function () { + + properties = {}; + + } + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLState( gl, extensions, paramThreeToGL ) { + + function ColorBuffer() { + + var locked = false; + + var color = new Vector4(); + var currentColorMask = null; + var currentColorClear = new Vector4(); + + return { + + setMask: function ( colorMask ) { + + if ( currentColorMask !== colorMask && ! locked ) { + + gl.colorMask( colorMask, colorMask, colorMask, colorMask ); + currentColorMask = colorMask; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( r, g, b, a ) { + + color.set( r, g, b, a ); + + if ( currentColorClear.equals( color ) === false ) { + + gl.clearColor( r, g, b, a ); + currentColorClear.copy( color ); + + } + + }, + + reset: function () { + + locked = false; + + currentColorMask = null; + currentColorClear.set( 0, 0, 0, 1 ); + + } + + }; + + } + + function DepthBuffer() { + + var locked = false; + + var currentDepthMask = null; + var currentDepthFunc = null; + var currentDepthClear = null; + + return { + + setTest: function ( depthTest ) { + + if ( depthTest ) { + + enable( gl.DEPTH_TEST ); + + } else { + + disable( gl.DEPTH_TEST ); + + } + + }, + + setMask: function ( depthMask ) { + + if ( currentDepthMask !== depthMask && ! locked ) { + + gl.depthMask( depthMask ); + currentDepthMask = depthMask; + + } + + }, + + setFunc: function ( depthFunc ) { + + if ( currentDepthFunc !== depthFunc ) { + + if ( depthFunc ) { + + switch ( depthFunc ) { + + case NeverDepth: + + gl.depthFunc( gl.NEVER ); + break; + + case AlwaysDepth: + + gl.depthFunc( gl.ALWAYS ); + break; + + case LessDepth: + + gl.depthFunc( gl.LESS ); + break; + + case LessEqualDepth: + + gl.depthFunc( gl.LEQUAL ); + break; + + case EqualDepth: + + gl.depthFunc( gl.EQUAL ); + break; + + case GreaterEqualDepth: + + gl.depthFunc( gl.GEQUAL ); + break; + + case GreaterDepth: + + gl.depthFunc( gl.GREATER ); + break; + + case NotEqualDepth: + + gl.depthFunc( gl.NOTEQUAL ); + break; + + default: + + gl.depthFunc( gl.LEQUAL ); + + } + + } else { + + gl.depthFunc( gl.LEQUAL ); + + } + + currentDepthFunc = depthFunc; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( depth ) { + + if ( currentDepthClear !== depth ) { + + gl.clearDepth( depth ); + currentDepthClear = depth; + + } + + }, + + reset: function () { + + locked = false; + + currentDepthMask = null; + currentDepthFunc = null; + currentDepthClear = null; + + } + + }; + + } + + function StencilBuffer() { + + var locked = false; + + var currentStencilMask = null; + var currentStencilFunc = null; + var currentStencilRef = null; + var currentStencilFuncMask = null; + var currentStencilFail = null; + var currentStencilZFail = null; + var currentStencilZPass = null; + var currentStencilClear = null; + + return { + + setTest: function ( stencilTest ) { + + if ( stencilTest ) { + + enable( gl.STENCIL_TEST ); + + } else { + + disable( gl.STENCIL_TEST ); + + } + + }, + + setMask: function ( stencilMask ) { + + if ( currentStencilMask !== stencilMask && ! locked ) { + + gl.stencilMask( stencilMask ); + currentStencilMask = stencilMask; + + } + + }, + + setFunc: function ( stencilFunc, stencilRef, stencilMask ) { + + if ( currentStencilFunc !== stencilFunc || + currentStencilRef !== stencilRef || + currentStencilFuncMask !== stencilMask ) { + + gl.stencilFunc( stencilFunc, stencilRef, stencilMask ); + + currentStencilFunc = stencilFunc; + currentStencilRef = stencilRef; + currentStencilFuncMask = stencilMask; + + } + + }, + + setOp: function ( stencilFail, stencilZFail, stencilZPass ) { + + if ( currentStencilFail !== stencilFail || + currentStencilZFail !== stencilZFail || + currentStencilZPass !== stencilZPass ) { + + gl.stencilOp( stencilFail, stencilZFail, stencilZPass ); + + currentStencilFail = stencilFail; + currentStencilZFail = stencilZFail; + currentStencilZPass = stencilZPass; + + } + + }, + + setLocked: function ( lock ) { + + locked = lock; + + }, + + setClear: function ( stencil ) { + + if ( currentStencilClear !== stencil ) { + + gl.clearStencil( stencil ); + currentStencilClear = stencil; + + } + + }, + + reset: function () { + + locked = false; + + currentStencilMask = null; + currentStencilFunc = null; + currentStencilRef = null; + currentStencilFuncMask = null; + currentStencilFail = null; + currentStencilZFail = null; + currentStencilZPass = null; + currentStencilClear = null; + + } + + }; + + } + + // + + var colorBuffer = new ColorBuffer(); + var depthBuffer = new DepthBuffer(); + var stencilBuffer = new StencilBuffer(); + + var maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS ); + var newAttributes = new Uint8Array( maxVertexAttributes ); + var enabledAttributes = new Uint8Array( maxVertexAttributes ); + var attributeDivisors = new Uint8Array( maxVertexAttributes ); + + var capabilities = {}; + + var compressedTextureFormats = null; + + var currentBlending = null; + var currentBlendEquation = null; + var currentBlendSrc = null; + var currentBlendDst = null; + var currentBlendEquationAlpha = null; + var currentBlendSrcAlpha = null; + var currentBlendDstAlpha = null; + var currentPremultipledAlpha = false; + + var currentFlipSided = null; + var currentCullFace = null; + + var currentLineWidth = null; + + var currentPolygonOffsetFactor = null; + var currentPolygonOffsetUnits = null; + + var currentScissorTest = null; + + var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS ); + + var currentTextureSlot = null; + var currentBoundTextures = {}; + + var currentScissor = new Vector4(); + var currentViewport = new Vector4(); + + function createTexture( type, target, count ) { + + var data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4. + var texture = gl.createTexture(); + + gl.bindTexture( type, texture ); + gl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST ); + gl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST ); + + for ( var i = 0; i < count; i ++ ) { + + gl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data ); + + } + + return texture; + + } + + var emptyTextures = {}; + emptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 ); + emptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 ); + + // + + function init() { + + clearColor( 0, 0, 0, 1 ); + clearDepth( 1 ); + clearStencil( 0 ); + + enable( gl.DEPTH_TEST ); + setDepthFunc( LessEqualDepth ); + + setFlipSided( false ); + setCullFace( CullFaceBack ); + enable( gl.CULL_FACE ); + + enable( gl.BLEND ); + setBlending( NormalBlending ); + + } + + function initAttributes() { + + for ( var i = 0, l = newAttributes.length; i < l; i ++ ) { + + newAttributes[ i ] = 0; + + } + + } + + function enableAttribute( attribute ) { + + newAttributes[ attribute ] = 1; + + if ( enabledAttributes[ attribute ] === 0 ) { + + gl.enableVertexAttribArray( attribute ); + enabledAttributes[ attribute ] = 1; + + } + + if ( attributeDivisors[ attribute ] !== 0 ) { + + var extension = extensions.get( 'ANGLE_instanced_arrays' ); + + extension.vertexAttribDivisorANGLE( attribute, 0 ); + attributeDivisors[ attribute ] = 0; + + } + + } + + function enableAttributeAndDivisor( attribute, meshPerAttribute, extension ) { + + newAttributes[ attribute ] = 1; + + if ( enabledAttributes[ attribute ] === 0 ) { + + gl.enableVertexAttribArray( attribute ); + enabledAttributes[ attribute ] = 1; + + } + + if ( attributeDivisors[ attribute ] !== meshPerAttribute ) { + + extension.vertexAttribDivisorANGLE( attribute, meshPerAttribute ); + attributeDivisors[ attribute ] = meshPerAttribute; + + } + + } + + function disableUnusedAttributes() { + + for ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) { + + if ( enabledAttributes[ i ] !== newAttributes[ i ] ) { + + gl.disableVertexAttribArray( i ); + enabledAttributes[ i ] = 0; + + } + + } + + } + + function enable( id ) { + + if ( capabilities[ id ] !== true ) { + + gl.enable( id ); + capabilities[ id ] = true; + + } + + } + + function disable( id ) { + + if ( capabilities[ id ] !== false ) { + + gl.disable( id ); + capabilities[ id ] = false; + + } + + } + + function getCompressedTextureFormats() { + + if ( compressedTextureFormats === null ) { + + compressedTextureFormats = []; + + if ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) || + extensions.get( 'WEBGL_compressed_texture_s3tc' ) || + extensions.get( 'WEBGL_compressed_texture_etc1' ) ) { + + var formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS ); + + for ( var i = 0; i < formats.length; i ++ ) { + + compressedTextureFormats.push( formats[ i ] ); + + } + + } + + } + + return compressedTextureFormats; + + } + + function setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) { + + if ( blending !== NoBlending ) { + + enable( gl.BLEND ); + + } else { + + disable( gl.BLEND ); + + } + + if ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) { + + if ( blending === AdditiveBlending ) { + + if ( premultipliedAlpha ) { + + gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD ); + gl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE ); + + } else { + + gl.blendEquation( gl.FUNC_ADD ); + gl.blendFunc( gl.SRC_ALPHA, gl.ONE ); + + } + + } else if ( blending === SubtractiveBlending ) { + + if ( premultipliedAlpha ) { + + gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD ); + gl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA ); + + } else { + + gl.blendEquation( gl.FUNC_ADD ); + gl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR ); + + } + + } else if ( blending === MultiplyBlending ) { + + if ( premultipliedAlpha ) { + + gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD ); + gl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA ); + + } else { + + gl.blendEquation( gl.FUNC_ADD ); + gl.blendFunc( gl.ZERO, gl.SRC_COLOR ); + + } + + } else { + + if ( premultipliedAlpha ) { + + gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD ); + gl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA ); + + } else { + + gl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD ); + gl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA ); + + } + + } + + currentBlending = blending; + currentPremultipledAlpha = premultipliedAlpha; + + } + + if ( blending === CustomBlending ) { + + blendEquationAlpha = blendEquationAlpha || blendEquation; + blendSrcAlpha = blendSrcAlpha || blendSrc; + blendDstAlpha = blendDstAlpha || blendDst; + + if ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) { + + gl.blendEquationSeparate( paramThreeToGL( blendEquation ), paramThreeToGL( blendEquationAlpha ) ); + + currentBlendEquation = blendEquation; + currentBlendEquationAlpha = blendEquationAlpha; + + } + + if ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) { + + gl.blendFuncSeparate( paramThreeToGL( blendSrc ), paramThreeToGL( blendDst ), paramThreeToGL( blendSrcAlpha ), paramThreeToGL( blendDstAlpha ) ); + + currentBlendSrc = blendSrc; + currentBlendDst = blendDst; + currentBlendSrcAlpha = blendSrcAlpha; + currentBlendDstAlpha = blendDstAlpha; + + } + + } else { + + currentBlendEquation = null; + currentBlendSrc = null; + currentBlendDst = null; + currentBlendEquationAlpha = null; + currentBlendSrcAlpha = null; + currentBlendDstAlpha = null; + + } + + } + + // TODO Deprecate + + function setColorWrite( colorWrite ) { + + colorBuffer.setMask( colorWrite ); + + } + + function setDepthTest( depthTest ) { + + depthBuffer.setTest( depthTest ); + + } + + function setDepthWrite( depthWrite ) { + + depthBuffer.setMask( depthWrite ); + + } + + function setDepthFunc( depthFunc ) { + + depthBuffer.setFunc( depthFunc ); + + } + + function setStencilTest( stencilTest ) { + + stencilBuffer.setTest( stencilTest ); + + } + + function setStencilWrite( stencilWrite ) { + + stencilBuffer.setMask( stencilWrite ); + + } + + function setStencilFunc( stencilFunc, stencilRef, stencilMask ) { + + stencilBuffer.setFunc( stencilFunc, stencilRef, stencilMask ); + + } + + function setStencilOp( stencilFail, stencilZFail, stencilZPass ) { + + stencilBuffer.setOp( stencilFail, stencilZFail, stencilZPass ); + + } + + // + + function setFlipSided( flipSided ) { + + if ( currentFlipSided !== flipSided ) { + + if ( flipSided ) { + + gl.frontFace( gl.CW ); + + } else { + + gl.frontFace( gl.CCW ); + + } + + currentFlipSided = flipSided; + + } + + } + + function setCullFace( cullFace ) { + + if ( cullFace !== CullFaceNone ) { + + enable( gl.CULL_FACE ); + + if ( cullFace !== currentCullFace ) { + + if ( cullFace === CullFaceBack ) { + + gl.cullFace( gl.BACK ); + + } else if ( cullFace === CullFaceFront ) { + + gl.cullFace( gl.FRONT ); + + } else { + + gl.cullFace( gl.FRONT_AND_BACK ); + + } + + } + + } else { + + disable( gl.CULL_FACE ); + + } + + currentCullFace = cullFace; + + } + + function setLineWidth( width ) { + + if ( width !== currentLineWidth ) { + + gl.lineWidth( width ); + + currentLineWidth = width; + + } + + } + + function setPolygonOffset( polygonOffset, factor, units ) { + + if ( polygonOffset ) { + + enable( gl.POLYGON_OFFSET_FILL ); + + if ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) { + + gl.polygonOffset( factor, units ); + + currentPolygonOffsetFactor = factor; + currentPolygonOffsetUnits = units; + + } + + } else { + + disable( gl.POLYGON_OFFSET_FILL ); + + } + + } + + function getScissorTest() { + + return currentScissorTest; + + } + + function setScissorTest( scissorTest ) { + + currentScissorTest = scissorTest; + + if ( scissorTest ) { + + enable( gl.SCISSOR_TEST ); + + } else { + + disable( gl.SCISSOR_TEST ); + + } + + } + + // texture + + function activeTexture( webglSlot ) { + + if ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1; + + if ( currentTextureSlot !== webglSlot ) { + + gl.activeTexture( webglSlot ); + currentTextureSlot = webglSlot; + + } + + } + + function bindTexture( webglType, webglTexture ) { + + if ( currentTextureSlot === null ) { + + activeTexture(); + + } + + var boundTexture = currentBoundTextures[ currentTextureSlot ]; + + if ( boundTexture === undefined ) { + + boundTexture = { type: undefined, texture: undefined }; + currentBoundTextures[ currentTextureSlot ] = boundTexture; + + } + + if ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) { + + gl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] ); + + boundTexture.type = webglType; + boundTexture.texture = webglTexture; + + } + + } + + function compressedTexImage2D() { + + try { + + gl.compressedTexImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( error ); + + } + + } + + function texImage2D() { + + try { + + gl.texImage2D.apply( gl, arguments ); + + } catch ( error ) { + + console.error( error ); + + } + + } + + // TODO Deprecate + + function clearColor( r, g, b, a ) { + + colorBuffer.setClear( r, g, b, a ); + + } + + function clearDepth( depth ) { + + depthBuffer.setClear( depth ); + + } + + function clearStencil( stencil ) { + + stencilBuffer.setClear( stencil ); + + } + + // + + function scissor( scissor ) { + + if ( currentScissor.equals( scissor ) === false ) { + + gl.scissor( scissor.x, scissor.y, scissor.z, scissor.w ); + currentScissor.copy( scissor ); + + } + + } + + function viewport( viewport ) { + + if ( currentViewport.equals( viewport ) === false ) { + + gl.viewport( viewport.x, viewport.y, viewport.z, viewport.w ); + currentViewport.copy( viewport ); + + } + + } + + // + + function reset() { + + for ( var i = 0; i < enabledAttributes.length; i ++ ) { + + if ( enabledAttributes[ i ] === 1 ) { + + gl.disableVertexAttribArray( i ); + enabledAttributes[ i ] = 0; + + } + + } + + capabilities = {}; + + compressedTextureFormats = null; + + currentTextureSlot = null; + currentBoundTextures = {}; + + currentBlending = null; + + currentFlipSided = null; + currentCullFace = null; + + colorBuffer.reset(); + depthBuffer.reset(); + stencilBuffer.reset(); + + } + + return { + + buffers: { + color: colorBuffer, + depth: depthBuffer, + stencil: stencilBuffer + }, + + init: init, + initAttributes: initAttributes, + enableAttribute: enableAttribute, + enableAttributeAndDivisor: enableAttributeAndDivisor, + disableUnusedAttributes: disableUnusedAttributes, + enable: enable, + disable: disable, + getCompressedTextureFormats: getCompressedTextureFormats, + + setBlending: setBlending, + + setColorWrite: setColorWrite, + setDepthTest: setDepthTest, + setDepthWrite: setDepthWrite, + setDepthFunc: setDepthFunc, + setStencilTest: setStencilTest, + setStencilWrite: setStencilWrite, + setStencilFunc: setStencilFunc, + setStencilOp: setStencilOp, + + setFlipSided: setFlipSided, + setCullFace: setCullFace, + + setLineWidth: setLineWidth, + setPolygonOffset: setPolygonOffset, + + getScissorTest: getScissorTest, + setScissorTest: setScissorTest, + + activeTexture: activeTexture, + bindTexture: bindTexture, + compressedTexImage2D: compressedTexImage2D, + texImage2D: texImage2D, + + clearColor: clearColor, + clearDepth: clearDepth, + clearStencil: clearStencil, + + scissor: scissor, + viewport: viewport, + + reset: reset + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLCapabilities( gl, extensions, parameters ) { + + var maxAnisotropy; + + function getMaxAnisotropy() { + + if ( maxAnisotropy !== undefined ) return maxAnisotropy; + + var extension = extensions.get( 'EXT_texture_filter_anisotropic' ); + + if ( extension !== null ) { + + maxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT ); + + } else { + + maxAnisotropy = 0; + + } + + return maxAnisotropy; + + } + + function getMaxPrecision( precision ) { + + if ( precision === 'highp' ) { + + if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 && + gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) { + + return 'highp'; + + } + + precision = 'mediump'; + + } + + if ( precision === 'mediump' ) { + + if ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 && + gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) { + + return 'mediump'; + + } + + } + + return 'lowp'; + + } + + var precision = parameters.precision !== undefined ? parameters.precision : 'highp'; + var maxPrecision = getMaxPrecision( precision ); + + if ( maxPrecision !== precision ) { + + console.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' ); + precision = maxPrecision; + + } + + var logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true && !! extensions.get( 'EXT_frag_depth' ); + + var maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS ); + var maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS ); + var maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE ); + var maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE ); + + var maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS ); + var maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS ); + var maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS ); + var maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS ); + + var vertexTextures = maxVertexTextures > 0; + var floatFragmentTextures = !! extensions.get( 'OES_texture_float' ); + var floatVertexTextures = vertexTextures && floatFragmentTextures; + + return { + + getMaxAnisotropy: getMaxAnisotropy, + getMaxPrecision: getMaxPrecision, + + precision: precision, + logarithmicDepthBuffer: logarithmicDepthBuffer, + + maxTextures: maxTextures, + maxVertexTextures: maxVertexTextures, + maxTextureSize: maxTextureSize, + maxCubemapSize: maxCubemapSize, + + maxAttributes: maxAttributes, + maxVertexUniforms: maxVertexUniforms, + maxVaryings: maxVaryings, + maxFragmentUniforms: maxFragmentUniforms, + + vertexTextures: vertexTextures, + floatFragmentTextures: floatFragmentTextures, + floatVertexTextures: floatVertexTextures + + }; + + } + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WebGLExtensions( gl ) { + + var extensions = {}; + + return { + + get: function ( name ) { + + if ( extensions[ name ] !== undefined ) { + + return extensions[ name ]; + + } + + var extension; + + switch ( name ) { + + case 'WEBGL_depth_texture': + extension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' ); + break; + + case 'EXT_texture_filter_anisotropic': + extension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' ); + break; + + case 'WEBGL_compressed_texture_s3tc': + extension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' ); + break; + + case 'WEBGL_compressed_texture_pvrtc': + extension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' ); + break; + + case 'WEBGL_compressed_texture_etc1': + extension = gl.getExtension( 'WEBGL_compressed_texture_etc1' ); + break; + + default: + extension = gl.getExtension( name ); + + } + + if ( extension === null ) { + + console.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' ); + + } + + extensions[ name ] = extension; + + return extension; + + } + + }; + + } + + /** + * @author tschw + */ + + function WebGLClipping() { + + var scope = this, + + globalState = null, + numGlobalPlanes = 0, + localClippingEnabled = false, + renderingShadows = false, + + plane = new Plane(), + viewNormalMatrix = new Matrix3(), + + uniform = { value: null, needsUpdate: false }; + + this.uniform = uniform; + this.numPlanes = 0; + this.numIntersection = 0; + + this.init = function( planes, enableLocalClipping, camera ) { + + var enabled = + planes.length !== 0 || + enableLocalClipping || + // enable state of previous frame - the clipping code has to + // run another frame in order to reset the state: + numGlobalPlanes !== 0 || + localClippingEnabled; + + localClippingEnabled = enableLocalClipping; + + globalState = projectPlanes( planes, camera, 0 ); + numGlobalPlanes = planes.length; + + return enabled; + + }; + + this.beginShadows = function() { + + renderingShadows = true; + projectPlanes( null ); + + }; + + this.endShadows = function() { + + renderingShadows = false; + resetGlobalState(); + + }; + + this.setState = function( planes, clipIntersection, clipShadows, camera, cache, fromCache ) { + + if ( ! localClippingEnabled || + planes === null || planes.length === 0 || + renderingShadows && ! clipShadows ) { + // there's no local clipping + + if ( renderingShadows ) { + // there's no global clipping + + projectPlanes( null ); + + } else { + + resetGlobalState(); + } + + } else { + + var nGlobal = renderingShadows ? 0 : numGlobalPlanes, + lGlobal = nGlobal * 4, + + dstArray = cache.clippingState || null; + + uniform.value = dstArray; // ensure unique state + + dstArray = projectPlanes( planes, camera, lGlobal, fromCache ); + + for ( var i = 0; i !== lGlobal; ++ i ) { + + dstArray[ i ] = globalState[ i ]; + + } + + cache.clippingState = dstArray; + this.numIntersection = clipIntersection ? this.numPlanes : 0; + this.numPlanes += nGlobal; + + } + + + }; + + function resetGlobalState() { + + if ( uniform.value !== globalState ) { + + uniform.value = globalState; + uniform.needsUpdate = numGlobalPlanes > 0; + + } + + scope.numPlanes = numGlobalPlanes; + scope.numIntersection = 0; + + } + + function projectPlanes( planes, camera, dstOffset, skipTransform ) { + + var nPlanes = planes !== null ? planes.length : 0, + dstArray = null; + + if ( nPlanes !== 0 ) { + + dstArray = uniform.value; + + if ( skipTransform !== true || dstArray === null ) { + + var flatSize = dstOffset + nPlanes * 4, + viewMatrix = camera.matrixWorldInverse; + + viewNormalMatrix.getNormalMatrix( viewMatrix ); + + if ( dstArray === null || dstArray.length < flatSize ) { + + dstArray = new Float32Array( flatSize ); + + } + + for ( var i = 0, i4 = dstOffset; + i !== nPlanes; ++ i, i4 += 4 ) { + + plane.copy( planes[ i ] ). + applyMatrix4( viewMatrix, viewNormalMatrix ); + + plane.normal.toArray( dstArray, i4 ); + dstArray[ i4 + 3 ] = plane.constant; + + } + + } + + uniform.value = dstArray; + uniform.needsUpdate = true; + + } + + scope.numPlanes = nPlanes; + + return dstArray; + + } + + } + + /** + * @author supereggbert / http://www.paulbrunt.co.uk/ + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * @author szimek / https://github.com/szimek/ + * @author tschw + */ + + function WebGLRenderer( parameters ) { + + console.log( 'THREE.WebGLRenderer', REVISION ); + + parameters = parameters || {}; + + var _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ), + _context = parameters.context !== undefined ? parameters.context : null, + + _alpha = parameters.alpha !== undefined ? parameters.alpha : false, + _depth = parameters.depth !== undefined ? parameters.depth : true, + _stencil = parameters.stencil !== undefined ? parameters.stencil : true, + _antialias = parameters.antialias !== undefined ? parameters.antialias : false, + _premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true, + _preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false; + + var lights = []; + + var opaqueObjects = []; + var opaqueObjectsLastIndex = - 1; + var transparentObjects = []; + var transparentObjectsLastIndex = - 1; + + var morphInfluences = new Float32Array( 8 ); + + var sprites = []; + var lensFlares = []; + + // public properties + + this.domElement = _canvas; + this.context = null; + + // clearing + + this.autoClear = true; + this.autoClearColor = true; + this.autoClearDepth = true; + this.autoClearStencil = true; + + // scene graph + + this.sortObjects = true; + + // user-defined clipping + + this.clippingPlanes = []; + this.localClippingEnabled = false; + + // physically based shading + + this.gammaFactor = 2.0; // for backwards compatibility + this.gammaInput = false; + this.gammaOutput = false; + + // physical lights + + this.physicallyCorrectLights = false; + + // tone mapping + + this.toneMapping = LinearToneMapping; + this.toneMappingExposure = 1.0; + this.toneMappingWhitePoint = 1.0; + + // morphs + + this.maxMorphTargets = 8; + this.maxMorphNormals = 4; + + // internal properties + + var _this = this, + + // internal state cache + + _currentProgram = null, + _currentRenderTarget = null, + _currentFramebuffer = null, + _currentMaterialId = - 1, + _currentGeometryProgram = '', + _currentCamera = null, + + _currentScissor = new Vector4(), + _currentScissorTest = null, + + _currentViewport = new Vector4(), + + // + + _usedTextureUnits = 0, + + // + + _clearColor = new Color( 0x000000 ), + _clearAlpha = 0, + + _width = _canvas.width, + _height = _canvas.height, + + _pixelRatio = 1, + + _scissor = new Vector4( 0, 0, _width, _height ), + _scissorTest = false, + + _viewport = new Vector4( 0, 0, _width, _height ), + + // frustum + + _frustum = new Frustum(), + + // clipping + + _clipping = new WebGLClipping(), + _clippingEnabled = false, + _localClippingEnabled = false, + + _sphere = new Sphere(), + + // camera matrices cache + + _projScreenMatrix = new Matrix4(), + + _vector3 = new Vector3(), + + // light arrays cache + + _lights = { + + hash: '', + + ambient: [ 0, 0, 0 ], + directional: [], + directionalShadowMap: [], + directionalShadowMatrix: [], + spot: [], + spotShadowMap: [], + spotShadowMatrix: [], + point: [], + pointShadowMap: [], + pointShadowMatrix: [], + hemi: [], + + shadows: [] + + }, + + // info + + _infoRender = { + + calls: 0, + vertices: 0, + faces: 0, + points: 0 + + }; + + this.info = { + + render: _infoRender, + memory: { + + geometries: 0, + textures: 0 + + }, + programs: null + + }; + + + // initialize + + var _gl; + + try { + + var attributes = { + alpha: _alpha, + depth: _depth, + stencil: _stencil, + antialias: _antialias, + premultipliedAlpha: _premultipliedAlpha, + preserveDrawingBuffer: _preserveDrawingBuffer + }; + + _gl = _context || _canvas.getContext( 'webgl', attributes ) || _canvas.getContext( 'experimental-webgl', attributes ); + + if ( _gl === null ) { + + if ( _canvas.getContext( 'webgl' ) !== null ) { + + throw 'Error creating WebGL context with your selected attributes.'; + + } else { + + throw 'Error creating WebGL context.'; + + } + + } + + // Some experimental-webgl implementations do not have getShaderPrecisionFormat + + if ( _gl.getShaderPrecisionFormat === undefined ) { + + _gl.getShaderPrecisionFormat = function () { + + return { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 }; + + }; + + } + + _canvas.addEventListener( 'webglcontextlost', onContextLost, false ); + + } catch ( error ) { + + console.error( 'THREE.WebGLRenderer: ' + error ); + + } + + var extensions = new WebGLExtensions( _gl ); + + extensions.get( 'WEBGL_depth_texture' ); + extensions.get( 'OES_texture_float' ); + extensions.get( 'OES_texture_float_linear' ); + extensions.get( 'OES_texture_half_float' ); + extensions.get( 'OES_texture_half_float_linear' ); + extensions.get( 'OES_standard_derivatives' ); + extensions.get( 'ANGLE_instanced_arrays' ); + + if ( extensions.get( 'OES_element_index_uint' ) ) { + + BufferGeometry.MaxIndex = 4294967296; + + } + + var capabilities = new WebGLCapabilities( _gl, extensions, parameters ); + + var state = new WebGLState( _gl, extensions, paramThreeToGL ); + var properties = new WebGLProperties(); + var textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, this.info ); + var objects = new WebGLObjects( _gl, properties, this.info ); + var programCache = new WebGLPrograms( this, capabilities ); + var lightCache = new WebGLLights(); + + this.info.programs = programCache.programs; + + var bufferRenderer = new WebGLBufferRenderer( _gl, extensions, _infoRender ); + var indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, _infoRender ); + + // + + var backgroundCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 ); + var backgroundCamera2 = new PerspectiveCamera(); + var backgroundPlaneMesh = new Mesh( + new PlaneBufferGeometry( 2, 2 ), + new MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } ) + ); + var backgroundBoxShader = ShaderLib[ 'cube' ]; + var backgroundBoxMesh = new Mesh( + new BoxBufferGeometry( 5, 5, 5 ), + new ShaderMaterial( { + uniforms: backgroundBoxShader.uniforms, + vertexShader: backgroundBoxShader.vertexShader, + fragmentShader: backgroundBoxShader.fragmentShader, + side: BackSide, + depthTest: false, + depthWrite: false, + fog: false + } ) + ); + + // + + function getTargetPixelRatio() { + + return _currentRenderTarget === null ? _pixelRatio : 1; + + } + + function glClearColor( r, g, b, a ) { + + if ( _premultipliedAlpha === true ) { + + r *= a; g *= a; b *= a; + + } + + state.clearColor( r, g, b, a ); + + } + + function setDefaultGLState() { + + state.init(); + + state.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) ); + state.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) ); + + glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha ); + + } + + function resetGLState() { + + _currentProgram = null; + _currentCamera = null; + + _currentGeometryProgram = ''; + _currentMaterialId = - 1; + + state.reset(); + + } + + setDefaultGLState(); + + this.context = _gl; + this.capabilities = capabilities; + this.extensions = extensions; + this.properties = properties; + this.state = state; + + // shadow map + + var shadowMap = new WebGLShadowMap( this, _lights, objects, capabilities ); + + this.shadowMap = shadowMap; + + + // Plugins + + var spritePlugin = new SpritePlugin( this, sprites ); + var lensFlarePlugin = new LensFlarePlugin( this, lensFlares ); + + // API + + this.getContext = function () { + + return _gl; + + }; + + this.getContextAttributes = function () { + + return _gl.getContextAttributes(); + + }; + + this.forceContextLoss = function () { + + extensions.get( 'WEBGL_lose_context' ).loseContext(); + + }; + + this.getMaxAnisotropy = function () { + + return capabilities.getMaxAnisotropy(); + + }; + + this.getPrecision = function () { + + return capabilities.precision; + + }; + + this.getPixelRatio = function () { + + return _pixelRatio; + + }; + + this.setPixelRatio = function ( value ) { + + if ( value === undefined ) return; + + _pixelRatio = value; + + this.setSize( _viewport.z, _viewport.w, false ); + + }; + + this.getSize = function () { + + return { + width: _width, + height: _height + }; + + }; + + this.setSize = function ( width, height, updateStyle ) { + + _width = width; + _height = height; + + _canvas.width = width * _pixelRatio; + _canvas.height = height * _pixelRatio; + + if ( updateStyle !== false ) { + + _canvas.style.width = width + 'px'; + _canvas.style.height = height + 'px'; + + } + + this.setViewport( 0, 0, width, height ); + + }; + + this.setViewport = function ( x, y, width, height ) { + + state.viewport( _viewport.set( x, y, width, height ) ); + + }; + + this.setScissor = function ( x, y, width, height ) { + + state.scissor( _scissor.set( x, y, width, height ) ); + + }; + + this.setScissorTest = function ( boolean ) { + + state.setScissorTest( _scissorTest = boolean ); + + }; + + // Clearing + + this.getClearColor = function () { + + return _clearColor; + + }; + + this.setClearColor = function ( color, alpha ) { + + _clearColor.set( color ); + + _clearAlpha = alpha !== undefined ? alpha : 1; + + glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha ); + + }; + + this.getClearAlpha = function () { + + return _clearAlpha; + + }; + + this.setClearAlpha = function ( alpha ) { + + _clearAlpha = alpha; + + glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha ); + + }; + + this.clear = function ( color, depth, stencil ) { + + var bits = 0; + + if ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT; + if ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT; + if ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT; + + _gl.clear( bits ); + + }; + + this.clearColor = function () { + + this.clear( true, false, false ); + + }; + + this.clearDepth = function () { + + this.clear( false, true, false ); + + }; + + this.clearStencil = function () { + + this.clear( false, false, true ); + + }; + + this.clearTarget = function ( renderTarget, color, depth, stencil ) { + + this.setRenderTarget( renderTarget ); + this.clear( color, depth, stencil ); + + }; + + // Reset + + this.resetGLState = resetGLState; + + this.dispose = function() { + + transparentObjects = []; + transparentObjectsLastIndex = -1; + opaqueObjects = []; + opaqueObjectsLastIndex = -1; + + _canvas.removeEventListener( 'webglcontextlost', onContextLost, false ); + + }; + + // Events + + function onContextLost( event ) { + + event.preventDefault(); + + resetGLState(); + setDefaultGLState(); + + properties.clear(); + + } + + function onMaterialDispose( event ) { + + var material = event.target; + + material.removeEventListener( 'dispose', onMaterialDispose ); + + deallocateMaterial( material ); + + } + + // Buffer deallocation + + function deallocateMaterial( material ) { + + releaseMaterialProgramReference( material ); + + properties.delete( material ); + + } + + + function releaseMaterialProgramReference( material ) { + + var programInfo = properties.get( material ).program; + + material.program = undefined; + + if ( programInfo !== undefined ) { + + programCache.releaseProgram( programInfo ); + + } + + } + + // Buffer rendering + + this.renderBufferImmediate = function ( object, program, material ) { + + state.initAttributes(); + + var buffers = properties.get( object ); + + if ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer(); + if ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer(); + if ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer(); + if ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer(); + + var attributes = program.getAttributes(); + + if ( object.hasPositions ) { + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position ); + _gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW ); + + state.enableAttribute( attributes.position ); + _gl.vertexAttribPointer( attributes.position, 3, _gl.FLOAT, false, 0, 0 ); + + } + + if ( object.hasNormals ) { + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal ); + + if ( ! material.isMeshPhongMaterial && + ! material.isMeshStandardMaterial && + material.shading === FlatShading ) { + + for ( var i = 0, l = object.count * 3; i < l; i += 9 ) { + + var array = object.normalArray; + + var nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3; + var ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3; + var nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3; + + array[ i + 0 ] = nx; + array[ i + 1 ] = ny; + array[ i + 2 ] = nz; + + array[ i + 3 ] = nx; + array[ i + 4 ] = ny; + array[ i + 5 ] = nz; + + array[ i + 6 ] = nx; + array[ i + 7 ] = ny; + array[ i + 8 ] = nz; + + } + + } + + _gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW ); + + state.enableAttribute( attributes.normal ); + + _gl.vertexAttribPointer( attributes.normal, 3, _gl.FLOAT, false, 0, 0 ); + + } + + if ( object.hasUvs && material.map ) { + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv ); + _gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW ); + + state.enableAttribute( attributes.uv ); + + _gl.vertexAttribPointer( attributes.uv, 2, _gl.FLOAT, false, 0, 0 ); + + } + + if ( object.hasColors && material.vertexColors !== NoColors ) { + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color ); + _gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW ); + + state.enableAttribute( attributes.color ); + + _gl.vertexAttribPointer( attributes.color, 3, _gl.FLOAT, false, 0, 0 ); + + } + + state.disableUnusedAttributes(); + + _gl.drawArrays( _gl.TRIANGLES, 0, object.count ); + + object.count = 0; + + }; + + this.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) { + + setMaterial( material ); + + var program = setProgram( camera, fog, material, object ); + + var updateBuffers = false; + var geometryProgram = geometry.id + '_' + program.id + '_' + material.wireframe; + + if ( geometryProgram !== _currentGeometryProgram ) { + + _currentGeometryProgram = geometryProgram; + updateBuffers = true; + + } + + // morph targets + + var morphTargetInfluences = object.morphTargetInfluences; + + if ( morphTargetInfluences !== undefined ) { + + var activeInfluences = []; + + for ( var i = 0, l = morphTargetInfluences.length; i < l; i ++ ) { + + var influence = morphTargetInfluences[ i ]; + activeInfluences.push( [ influence, i ] ); + + } + + activeInfluences.sort( absNumericalSort ); + + if ( activeInfluences.length > 8 ) { + + activeInfluences.length = 8; + + } + + var morphAttributes = geometry.morphAttributes; + + for ( var i = 0, l = activeInfluences.length; i < l; i ++ ) { + + var influence = activeInfluences[ i ]; + morphInfluences[ i ] = influence[ 0 ]; + + if ( influence[ 0 ] !== 0 ) { + + var index = influence[ 1 ]; + + if ( material.morphTargets === true && morphAttributes.position ) geometry.addAttribute( 'morphTarget' + i, morphAttributes.position[ index ] ); + if ( material.morphNormals === true && morphAttributes.normal ) geometry.addAttribute( 'morphNormal' + i, morphAttributes.normal[ index ] ); + + } else { + + if ( material.morphTargets === true ) geometry.removeAttribute( 'morphTarget' + i ); + if ( material.morphNormals === true ) geometry.removeAttribute( 'morphNormal' + i ); + + } + + } + + for ( var i = activeInfluences.length, il = morphInfluences.length; i < il; i ++ ) { + + morphInfluences[ i ] = 0.0; + + } + + program.getUniforms().setValue( + _gl, 'morphTargetInfluences', morphInfluences ); + + updateBuffers = true; + + } + + // + + var index = geometry.index; + var position = geometry.attributes.position; + var rangeFactor = 1; + + if ( material.wireframe === true ) { + + index = objects.getWireframeAttribute( geometry ); + rangeFactor = 2; + + } + + var renderer; + + if ( index !== null ) { + + renderer = indexedBufferRenderer; + renderer.setIndex( index ); + + } else { + + renderer = bufferRenderer; + + } + + if ( updateBuffers ) { + + setupVertexAttributes( material, program, geometry ); + + if ( index !== null ) { + + _gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, objects.getAttributeBuffer( index ) ); + + } + + } + + // + + var dataCount = 0; + + if ( index !== null ) { + + dataCount = index.count; + + } else if ( position !== undefined ) { + + dataCount = position.count; + + } + + var rangeStart = geometry.drawRange.start * rangeFactor; + var rangeCount = geometry.drawRange.count * rangeFactor; + + var groupStart = group !== null ? group.start * rangeFactor : 0; + var groupCount = group !== null ? group.count * rangeFactor : Infinity; + + var drawStart = Math.max( rangeStart, groupStart ); + var drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1; + + var drawCount = Math.max( 0, drawEnd - drawStart + 1 ); + + if ( drawCount === 0 ) return; + + // + + if ( object.isMesh ) { + + if ( material.wireframe === true ) { + + state.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() ); + renderer.setMode( _gl.LINES ); + + } else { + + switch ( object.drawMode ) { + + case TrianglesDrawMode: + renderer.setMode( _gl.TRIANGLES ); + break; + + case TriangleStripDrawMode: + renderer.setMode( _gl.TRIANGLE_STRIP ); + break; + + case TriangleFanDrawMode: + renderer.setMode( _gl.TRIANGLE_FAN ); + break; + + } + + } + + + } else if ( object.isLine ) { + + var lineWidth = material.linewidth; + + if ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material + + state.setLineWidth( lineWidth * getTargetPixelRatio() ); + + if ( object.isLineSegments ) { + + renderer.setMode( _gl.LINES ); + + } else { + + renderer.setMode( _gl.LINE_STRIP ); + + } + + } else if ( object.isPoints ) { + + renderer.setMode( _gl.POINTS ); + + } + + if ( geometry && geometry.isInstancedBufferGeometry ) { + + if ( geometry.maxInstancedCount > 0 ) { + + renderer.renderInstances( geometry, drawStart, drawCount ); + + } + + } else { + + renderer.render( drawStart, drawCount ); + + } + + }; + + function setupVertexAttributes( material, program, geometry, startIndex ) { + + var extension; + + if ( geometry && geometry.isInstancedBufferGeometry ) { + + extension = extensions.get( 'ANGLE_instanced_arrays' ); + + if ( extension === null ) { + + console.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' ); + return; + + } + + } + + if ( startIndex === undefined ) startIndex = 0; + + state.initAttributes(); + + var geometryAttributes = geometry.attributes; + + var programAttributes = program.getAttributes(); + + var materialDefaultAttributeValues = material.defaultAttributeValues; + + for ( var name in programAttributes ) { + + var programAttribute = programAttributes[ name ]; + + if ( programAttribute >= 0 ) { + + var geometryAttribute = geometryAttributes[ name ]; + + if ( geometryAttribute !== undefined ) { + + var type = _gl.FLOAT; + var array = geometryAttribute.array; + var normalized = geometryAttribute.normalized; + + if ( array instanceof Float32Array ) { + + type = _gl.FLOAT; + + } else if ( array instanceof Float64Array ) { + + console.warn( "Unsupported data buffer format: Float64Array" ); + + } else if ( array instanceof Uint16Array ) { + + type = _gl.UNSIGNED_SHORT; + + } else if ( array instanceof Int16Array ) { + + type = _gl.SHORT; + + } else if ( array instanceof Uint32Array ) { + + type = _gl.UNSIGNED_INT; + + } else if ( array instanceof Int32Array ) { + + type = _gl.INT; + + } else if ( array instanceof Int8Array ) { + + type = _gl.BYTE; + + } else if ( array instanceof Uint8Array ) { + + type = _gl.UNSIGNED_BYTE; + + } + + var size = geometryAttribute.itemSize; + var buffer = objects.getAttributeBuffer( geometryAttribute ); + + if ( geometryAttribute.isInterleavedBufferAttribute ) { + + var data = geometryAttribute.data; + var stride = data.stride; + var offset = geometryAttribute.offset; + + if ( data && data.isInstancedInterleavedBuffer ) { + + state.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute, extension ); + + if ( geometry.maxInstancedCount === undefined ) { + + geometry.maxInstancedCount = data.meshPerAttribute * data.count; + + } + + } else { + + state.enableAttribute( programAttribute ); + + } + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffer ); + _gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * data.array.BYTES_PER_ELEMENT, ( startIndex * stride + offset ) * data.array.BYTES_PER_ELEMENT ); + + } else { + + if ( geometryAttribute.isInstancedBufferAttribute ) { + + state.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute, extension ); + + if ( geometry.maxInstancedCount === undefined ) { + + geometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count; + + } + + } else { + + state.enableAttribute( programAttribute ); + + } + + _gl.bindBuffer( _gl.ARRAY_BUFFER, buffer ); + _gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, startIndex * size * geometryAttribute.array.BYTES_PER_ELEMENT ); + + } + + } else if ( materialDefaultAttributeValues !== undefined ) { + + var value = materialDefaultAttributeValues[ name ]; + + if ( value !== undefined ) { + + switch ( value.length ) { + + case 2: + _gl.vertexAttrib2fv( programAttribute, value ); + break; + + case 3: + _gl.vertexAttrib3fv( programAttribute, value ); + break; + + case 4: + _gl.vertexAttrib4fv( programAttribute, value ); + break; + + default: + _gl.vertexAttrib1fv( programAttribute, value ); + + } + + } + + } + + } + + } + + state.disableUnusedAttributes(); + + } + + // Sorting + + function absNumericalSort( a, b ) { + + return Math.abs( b[ 0 ] ) - Math.abs( a[ 0 ] ); + + } + + function painterSortStable( a, b ) { + + if ( a.object.renderOrder !== b.object.renderOrder ) { + + return a.object.renderOrder - b.object.renderOrder; + + } else if ( a.material.program && b.material.program && a.material.program !== b.material.program ) { + + return a.material.program.id - b.material.program.id; + + } else if ( a.material.id !== b.material.id ) { + + return a.material.id - b.material.id; + + } else if ( a.z !== b.z ) { + + return a.z - b.z; + + } else { + + return a.id - b.id; + + } + + } + + function reversePainterSortStable( a, b ) { + + if ( a.object.renderOrder !== b.object.renderOrder ) { + + return a.object.renderOrder - b.object.renderOrder; + + } if ( a.z !== b.z ) { + + return b.z - a.z; + + } else { + + return a.id - b.id; + + } + + } + + // Rendering + + this.render = function ( scene, camera, renderTarget, forceClear ) { + + if ( camera !== undefined && camera.isCamera !== true ) { + + console.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' ); + return; + + } + + // reset caching for this frame + + _currentGeometryProgram = ''; + _currentMaterialId = - 1; + _currentCamera = null; + + // update scene graph + + if ( scene.autoUpdate === true ) scene.updateMatrixWorld(); + + // update camera matrices and frustum + + if ( camera.parent === null ) camera.updateMatrixWorld(); + + camera.matrixWorldInverse.getInverse( camera.matrixWorld ); + + _projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse ); + _frustum.setFromMatrix( _projScreenMatrix ); + + lights.length = 0; + + opaqueObjectsLastIndex = - 1; + transparentObjectsLastIndex = - 1; + + sprites.length = 0; + lensFlares.length = 0; + + _localClippingEnabled = this.localClippingEnabled; + _clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera ); + + projectObject( scene, camera ); + + opaqueObjects.length = opaqueObjectsLastIndex + 1; + transparentObjects.length = transparentObjectsLastIndex + 1; + + if ( _this.sortObjects === true ) { + + opaqueObjects.sort( painterSortStable ); + transparentObjects.sort( reversePainterSortStable ); + + } + + // + + if ( _clippingEnabled ) _clipping.beginShadows(); + + setupShadows( lights ); + + shadowMap.render( scene, camera ); + + setupLights( lights, camera ); + + if ( _clippingEnabled ) _clipping.endShadows(); + + // + + _infoRender.calls = 0; + _infoRender.vertices = 0; + _infoRender.faces = 0; + _infoRender.points = 0; + + if ( renderTarget === undefined ) { + + renderTarget = null; + + } + + this.setRenderTarget( renderTarget ); + + // + + var background = scene.background; + + if ( background === null ) { + + glClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha ); + + } else if ( background && background.isColor ) { + + glClearColor( background.r, background.g, background.b, 1 ); + forceClear = true; + + } + + if ( this.autoClear || forceClear ) { + + this.clear( this.autoClearColor, this.autoClearDepth, this.autoClearStencil ); + + } + + if ( background && background.isCubeTexture ) { + + backgroundCamera2.projectionMatrix.copy( camera.projectionMatrix ); + + backgroundCamera2.matrixWorld.extractRotation( camera.matrixWorld ); + backgroundCamera2.matrixWorldInverse.getInverse( backgroundCamera2.matrixWorld ); + + backgroundBoxMesh.material.uniforms[ "tCube" ].value = background; + backgroundBoxMesh.modelViewMatrix.multiplyMatrices( backgroundCamera2.matrixWorldInverse, backgroundBoxMesh.matrixWorld ); + + objects.update( backgroundBoxMesh ); + + _this.renderBufferDirect( backgroundCamera2, null, backgroundBoxMesh.geometry, backgroundBoxMesh.material, backgroundBoxMesh, null ); + + } else if ( background && background.isTexture ) { + + backgroundPlaneMesh.material.map = background; + + objects.update( backgroundPlaneMesh ); + + _this.renderBufferDirect( backgroundCamera, null, backgroundPlaneMesh.geometry, backgroundPlaneMesh.material, backgroundPlaneMesh, null ); + + } + + // + + if ( scene.overrideMaterial ) { + + var overrideMaterial = scene.overrideMaterial; + + renderObjects( opaqueObjects, scene, camera, overrideMaterial ); + renderObjects( transparentObjects, scene, camera, overrideMaterial ); + + } else { + + // opaque pass (front-to-back order) + + state.setBlending( NoBlending ); + renderObjects( opaqueObjects, scene, camera ); + + // transparent pass (back-to-front order) + + renderObjects( transparentObjects, scene, camera ); + + } + + // custom render plugins (post pass) + + spritePlugin.render( scene, camera ); + lensFlarePlugin.render( scene, camera, _currentViewport ); + + // Generate mipmap if we're using any kind of mipmap filtering + + if ( renderTarget ) { + + textures.updateRenderTargetMipmap( renderTarget ); + + } + + // Ensure depth buffer writing is enabled so it can be cleared on next render + + state.setDepthTest( true ); + state.setDepthWrite( true ); + state.setColorWrite( true ); + + // _gl.finish(); + + }; + + function pushRenderItem( object, geometry, material, z, group ) { + + var array, index; + + // allocate the next position in the appropriate array + + if ( material.transparent ) { + + array = transparentObjects; + index = ++ transparentObjectsLastIndex; + + } else { + + array = opaqueObjects; + index = ++ opaqueObjectsLastIndex; + + } + + // recycle existing render item or grow the array + + var renderItem = array[ index ]; + + if ( renderItem !== undefined ) { + + renderItem.id = object.id; + renderItem.object = object; + renderItem.geometry = geometry; + renderItem.material = material; + renderItem.z = _vector3.z; + renderItem.group = group; + + } else { + + renderItem = { + id: object.id, + object: object, + geometry: geometry, + material: material, + z: _vector3.z, + group: group + }; + + // assert( index === array.length ); + array.push( renderItem ); + + } + + } + + // TODO Duplicated code (Frustum) + + function isObjectViewable( object ) { + + var geometry = object.geometry; + + if ( geometry.boundingSphere === null ) + geometry.computeBoundingSphere(); + + _sphere.copy( geometry.boundingSphere ). + applyMatrix4( object.matrixWorld ); + + return isSphereViewable( _sphere ); + + } + + function isSpriteViewable( sprite ) { + + _sphere.center.set( 0, 0, 0 ); + _sphere.radius = 0.7071067811865476; + _sphere.applyMatrix4( sprite.matrixWorld ); + + return isSphereViewable( _sphere ); + + } + + function isSphereViewable( sphere ) { + + if ( ! _frustum.intersectsSphere( sphere ) ) return false; + + var numPlanes = _clipping.numPlanes; + + if ( numPlanes === 0 ) return true; + + var planes = _this.clippingPlanes, + + center = sphere.center, + negRad = - sphere.radius, + i = 0; + + do { + + // out when deeper than radius in the negative halfspace + if ( planes[ i ].distanceToPoint( center ) < negRad ) return false; + + } while ( ++ i !== numPlanes ); + + return true; + + } + + function projectObject( object, camera ) { + + if ( object.visible === false ) return; + + var visible = ( object.layers.mask & camera.layers.mask ) !== 0; + + if ( visible ) { + + if ( object.isLight ) { + + lights.push( object ); + + } else if ( object.isSprite ) { + + if ( object.frustumCulled === false || isSpriteViewable( object ) === true ) { + + sprites.push( object ); + + } + + } else if ( object.isLensFlare ) { + + lensFlares.push( object ); + + } else if ( object.isImmediateRenderObject ) { + + if ( _this.sortObjects === true ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ); + _vector3.applyProjection( _projScreenMatrix ); + + } + + pushRenderItem( object, null, object.material, _vector3.z, null ); + + } else if ( object.isMesh || object.isLine || object.isPoints ) { + + if ( object.isSkinnedMesh ) { + + object.skeleton.update(); + + } + + if ( object.frustumCulled === false || isObjectViewable( object ) === true ) { + + var material = object.material; + + if ( material.visible === true ) { + + if ( _this.sortObjects === true ) { + + _vector3.setFromMatrixPosition( object.matrixWorld ); + _vector3.applyProjection( _projScreenMatrix ); + + } + + var geometry = objects.update( object ); + + if ( material.isMultiMaterial ) { + + var groups = geometry.groups; + var materials = material.materials; + + for ( var i = 0, l = groups.length; i < l; i ++ ) { + + var group = groups[ i ]; + var groupMaterial = materials[ group.materialIndex ]; + + if ( groupMaterial.visible === true ) { + + pushRenderItem( object, geometry, groupMaterial, _vector3.z, group ); + + } + + } + + } else { + + pushRenderItem( object, geometry, material, _vector3.z, null ); + + } + + } + + } + + } + + } + + var children = object.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + projectObject( children[ i ], camera ); + + } + + } + + function renderObjects( renderList, scene, camera, overrideMaterial ) { + + for ( var i = 0, l = renderList.length; i < l; i ++ ) { + + var renderItem = renderList[ i ]; + + var object = renderItem.object; + var geometry = renderItem.geometry; + var material = overrideMaterial === undefined ? renderItem.material : overrideMaterial; + var group = renderItem.group; + + object.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld ); + object.normalMatrix.getNormalMatrix( object.modelViewMatrix ); + + object.onBeforeRender( _this, scene, camera, geometry, material, group ); + + if ( object.isImmediateRenderObject ) { + + setMaterial( material ); + + var program = setProgram( camera, scene.fog, material, object ); + + _currentGeometryProgram = ''; + + object.render( function ( object ) { + + _this.renderBufferImmediate( object, program, material ); + + } ); + + } else { + + _this.renderBufferDirect( camera, scene.fog, geometry, material, object, group ); + + } + + object.onAfterRender( _this, scene, camera, geometry, material, group ); + + + } + + } + + function initMaterial( material, fog, object ) { + + var materialProperties = properties.get( material ); + + var parameters = programCache.getParameters( + material, _lights, fog, _clipping.numPlanes, _clipping.numIntersection, object ); + + var code = programCache.getProgramCode( material, parameters ); + + var program = materialProperties.program; + var programChange = true; + + if ( program === undefined ) { + + // new material + material.addEventListener( 'dispose', onMaterialDispose ); + + } else if ( program.code !== code ) { + + // changed glsl or parameters + releaseMaterialProgramReference( material ); + + } else if ( parameters.shaderID !== undefined ) { + + // same glsl and uniform list + return; + + } else { + + // only rebuild uniform list + programChange = false; + + } + + if ( programChange ) { + + if ( parameters.shaderID ) { + + var shader = ShaderLib[ parameters.shaderID ]; + + materialProperties.__webglShader = { + name: material.type, + uniforms: UniformsUtils.clone( shader.uniforms ), + vertexShader: shader.vertexShader, + fragmentShader: shader.fragmentShader + }; + + } else { + + materialProperties.__webglShader = { + name: material.type, + uniforms: material.uniforms, + vertexShader: material.vertexShader, + fragmentShader: material.fragmentShader + }; + + } + + material.__webglShader = materialProperties.__webglShader; + + program = programCache.acquireProgram( material, parameters, code ); + + materialProperties.program = program; + material.program = program; + + } + + var attributes = program.getAttributes(); + + if ( material.morphTargets ) { + + material.numSupportedMorphTargets = 0; + + for ( var i = 0; i < _this.maxMorphTargets; i ++ ) { + + if ( attributes[ 'morphTarget' + i ] >= 0 ) { + + material.numSupportedMorphTargets ++; + + } + + } + + } + + if ( material.morphNormals ) { + + material.numSupportedMorphNormals = 0; + + for ( var i = 0; i < _this.maxMorphNormals; i ++ ) { + + if ( attributes[ 'morphNormal' + i ] >= 0 ) { + + material.numSupportedMorphNormals ++; + + } + + } + + } + + var uniforms = materialProperties.__webglShader.uniforms; + + if ( ! material.isShaderMaterial && + ! material.isRawShaderMaterial || + material.clipping === true ) { + + materialProperties.numClippingPlanes = _clipping.numPlanes; + materialProperties.numIntersection = _clipping.numIntersection; + uniforms.clippingPlanes = _clipping.uniform; + + } + + materialProperties.fog = fog; + + // store the light setup it was created for + + materialProperties.lightsHash = _lights.hash; + + if ( material.lights ) { + + // wire up the material to this renderer's lighting state + + uniforms.ambientLightColor.value = _lights.ambient; + uniforms.directionalLights.value = _lights.directional; + uniforms.spotLights.value = _lights.spot; + uniforms.pointLights.value = _lights.point; + uniforms.hemisphereLights.value = _lights.hemi; + + uniforms.directionalShadowMap.value = _lights.directionalShadowMap; + uniforms.directionalShadowMatrix.value = _lights.directionalShadowMatrix; + uniforms.spotShadowMap.value = _lights.spotShadowMap; + uniforms.spotShadowMatrix.value = _lights.spotShadowMatrix; + uniforms.pointShadowMap.value = _lights.pointShadowMap; + uniforms.pointShadowMatrix.value = _lights.pointShadowMatrix; + + } + + var progUniforms = materialProperties.program.getUniforms(), + uniformsList = + WebGLUniforms.seqWithValue( progUniforms.seq, uniforms ); + + materialProperties.uniformsList = uniformsList; + + } + + function setMaterial( material ) { + + material.side === DoubleSide + ? state.disable( _gl.CULL_FACE ) + : state.enable( _gl.CULL_FACE ); + + state.setFlipSided( material.side === BackSide ); + + material.transparent === true + ? state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha ) + : state.setBlending( NoBlending ); + + state.setDepthFunc( material.depthFunc ); + state.setDepthTest( material.depthTest ); + state.setDepthWrite( material.depthWrite ); + state.setColorWrite( material.colorWrite ); + state.setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits ); + + } + + function setProgram( camera, fog, material, object ) { + + _usedTextureUnits = 0; + + var materialProperties = properties.get( material ); + + if ( _clippingEnabled ) { + + if ( _localClippingEnabled || camera !== _currentCamera ) { + + var useCache = + camera === _currentCamera && + material.id === _currentMaterialId; + + // we might want to call this function with some ClippingGroup + // object instead of the material, once it becomes feasible + // (#8465, #8379) + _clipping.setState( + material.clippingPlanes, material.clipIntersection, material.clipShadows, + camera, materialProperties, useCache ); + + } + + } + + if ( material.needsUpdate === false ) { + + if ( materialProperties.program === undefined ) { + + material.needsUpdate = true; + + } else if ( material.fog && materialProperties.fog !== fog ) { + + material.needsUpdate = true; + + } else if ( material.lights && materialProperties.lightsHash !== _lights.hash ) { + + material.needsUpdate = true; + + } else if ( materialProperties.numClippingPlanes !== undefined && + ( materialProperties.numClippingPlanes !== _clipping.numPlanes || + materialProperties.numIntersection !== _clipping.numIntersection ) ) { + + material.needsUpdate = true; + + } + + } + + if ( material.needsUpdate ) { + + initMaterial( material, fog, object ); + material.needsUpdate = false; + + } + + var refreshProgram = false; + var refreshMaterial = false; + var refreshLights = false; + + var program = materialProperties.program, + p_uniforms = program.getUniforms(), + m_uniforms = materialProperties.__webglShader.uniforms; + + if ( program.id !== _currentProgram ) { + + _gl.useProgram( program.program ); + _currentProgram = program.id; + + refreshProgram = true; + refreshMaterial = true; + refreshLights = true; + + } + + if ( material.id !== _currentMaterialId ) { + + _currentMaterialId = material.id; + + refreshMaterial = true; + + } + + if ( refreshProgram || camera !== _currentCamera ) { + + p_uniforms.set( _gl, camera, 'projectionMatrix' ); + + if ( capabilities.logarithmicDepthBuffer ) { + + p_uniforms.setValue( _gl, 'logDepthBufFC', + 2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) ); + + } + + + if ( camera !== _currentCamera ) { + + _currentCamera = camera; + + // lighting uniforms depend on the camera so enforce an update + // now, in case this material supports lights - or later, when + // the next material that does gets activated: + + refreshMaterial = true; // set to true on material change + refreshLights = true; // remains set until update done + + } + + // load material specific uniforms + // (shader material also gets them for the sake of genericity) + + if ( material.isShaderMaterial || + material.isMeshPhongMaterial || + material.isMeshStandardMaterial || + material.envMap ) { + + var uCamPos = p_uniforms.map.cameraPosition; + + if ( uCamPos !== undefined ) { + + uCamPos.setValue( _gl, + _vector3.setFromMatrixPosition( camera.matrixWorld ) ); + + } + + } + + if ( material.isMeshPhongMaterial || + material.isMeshLambertMaterial || + material.isMeshBasicMaterial || + material.isMeshStandardMaterial || + material.isShaderMaterial || + material.skinning ) { + + p_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse ); + + } + + p_uniforms.set( _gl, _this, 'toneMappingExposure' ); + p_uniforms.set( _gl, _this, 'toneMappingWhitePoint' ); + + } + + // skinning uniforms must be set even if material didn't change + // auto-setting of texture unit for bone texture must go before other textures + // not sure why, but otherwise weird things happen + + if ( material.skinning ) { + + p_uniforms.setOptional( _gl, object, 'bindMatrix' ); + p_uniforms.setOptional( _gl, object, 'bindMatrixInverse' ); + + var skeleton = object.skeleton; + + if ( skeleton ) { + + if ( capabilities.floatVertexTextures && skeleton.useVertexTexture ) { + + p_uniforms.set( _gl, skeleton, 'boneTexture' ); + p_uniforms.set( _gl, skeleton, 'boneTextureWidth' ); + p_uniforms.set( _gl, skeleton, 'boneTextureHeight' ); + + } else { + + p_uniforms.setOptional( _gl, skeleton, 'boneMatrices' ); + + } + + } + + } + + if ( refreshMaterial ) { + + if ( material.lights ) { + + // the current material requires lighting info + + // note: all lighting uniforms are always set correctly + // they simply reference the renderer's state for their + // values + // + // use the current material's .needsUpdate flags to set + // the GL state when required + + markUniformsLightsNeedsUpdate( m_uniforms, refreshLights ); + + } + + // refresh uniforms common to several materials + + if ( fog && material.fog ) { + + refreshUniformsFog( m_uniforms, fog ); + + } + + if ( material.isMeshBasicMaterial || + material.isMeshLambertMaterial || + material.isMeshPhongMaterial || + material.isMeshStandardMaterial || + material.isMeshDepthMaterial ) { + + refreshUniformsCommon( m_uniforms, material ); + + } + + // refresh single material specific uniforms + + if ( material.isLineBasicMaterial ) { + + refreshUniformsLine( m_uniforms, material ); + + } else if ( material.isLineDashedMaterial ) { + + refreshUniformsLine( m_uniforms, material ); + refreshUniformsDash( m_uniforms, material ); + + } else if ( material.isPointsMaterial ) { + + refreshUniformsPoints( m_uniforms, material ); + + } else if ( material.isMeshLambertMaterial ) { + + refreshUniformsLambert( m_uniforms, material ); + + } else if ( material.isMeshPhongMaterial ) { + + refreshUniformsPhong( m_uniforms, material ); + + } else if ( material.isMeshPhysicalMaterial ) { + + refreshUniformsPhysical( m_uniforms, material ); + + } else if ( material.isMeshStandardMaterial ) { + + refreshUniformsStandard( m_uniforms, material ); + + } else if ( material.isMeshDepthMaterial ) { + + if ( material.displacementMap ) { + + m_uniforms.displacementMap.value = material.displacementMap; + m_uniforms.displacementScale.value = material.displacementScale; + m_uniforms.displacementBias.value = material.displacementBias; + + } + + } else if ( material.isMeshNormalMaterial ) { + + m_uniforms.opacity.value = material.opacity; + + } + + WebGLUniforms.upload( + _gl, materialProperties.uniformsList, m_uniforms, _this ); + + } + + + // common matrices + + p_uniforms.set( _gl, object, 'modelViewMatrix' ); + p_uniforms.set( _gl, object, 'normalMatrix' ); + p_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld ); + + return program; + + } + + // Uniforms (refresh uniforms objects) + + function refreshUniformsCommon( uniforms, material ) { + + uniforms.opacity.value = material.opacity; + + uniforms.diffuse.value = material.color; + + if ( material.emissive ) { + + uniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity ); + + } + + uniforms.map.value = material.map; + uniforms.specularMap.value = material.specularMap; + uniforms.alphaMap.value = material.alphaMap; + + if ( material.aoMap ) { + + uniforms.aoMap.value = material.aoMap; + uniforms.aoMapIntensity.value = material.aoMapIntensity; + + } + + // uv repeat and offset setting priorities + // 1. color map + // 2. specular map + // 3. normal map + // 4. bump map + // 5. alpha map + // 6. emissive map + + var uvScaleMap; + + if ( material.map ) { + + uvScaleMap = material.map; + + } else if ( material.specularMap ) { + + uvScaleMap = material.specularMap; + + } else if ( material.displacementMap ) { + + uvScaleMap = material.displacementMap; + + } else if ( material.normalMap ) { + + uvScaleMap = material.normalMap; + + } else if ( material.bumpMap ) { + + uvScaleMap = material.bumpMap; + + } else if ( material.roughnessMap ) { + + uvScaleMap = material.roughnessMap; + + } else if ( material.metalnessMap ) { + + uvScaleMap = material.metalnessMap; + + } else if ( material.alphaMap ) { + + uvScaleMap = material.alphaMap; + + } else if ( material.emissiveMap ) { + + uvScaleMap = material.emissiveMap; + + } + + if ( uvScaleMap !== undefined ) { + + // backwards compatibility + if ( uvScaleMap.isWebGLRenderTarget ) { + + uvScaleMap = uvScaleMap.texture; + + } + + var offset = uvScaleMap.offset; + var repeat = uvScaleMap.repeat; + + uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y ); + + } + + uniforms.envMap.value = material.envMap; + + // don't flip CubeTexture envMaps, flip everything else: + // WebGLRenderTargetCube will be flipped for backwards compatibility + // WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture + // this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future + uniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1; + + uniforms.reflectivity.value = material.reflectivity; + uniforms.refractionRatio.value = material.refractionRatio; + + } + + function refreshUniformsLine( uniforms, material ) { + + uniforms.diffuse.value = material.color; + uniforms.opacity.value = material.opacity; + + } + + function refreshUniformsDash( uniforms, material ) { + + uniforms.dashSize.value = material.dashSize; + uniforms.totalSize.value = material.dashSize + material.gapSize; + uniforms.scale.value = material.scale; + + } + + function refreshUniformsPoints( uniforms, material ) { + + uniforms.diffuse.value = material.color; + uniforms.opacity.value = material.opacity; + uniforms.size.value = material.size * _pixelRatio; + uniforms.scale.value = _height * 0.5; + + uniforms.map.value = material.map; + + if ( material.map !== null ) { + + var offset = material.map.offset; + var repeat = material.map.repeat; + + uniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y ); + + } + + } + + function refreshUniformsFog( uniforms, fog ) { + + uniforms.fogColor.value = fog.color; + + if ( fog.isFog ) { + + uniforms.fogNear.value = fog.near; + uniforms.fogFar.value = fog.far; + + } else if ( fog.isFogExp2 ) { + + uniforms.fogDensity.value = fog.density; + + } + + } + + function refreshUniformsLambert( uniforms, material ) { + + if ( material.lightMap ) { + + uniforms.lightMap.value = material.lightMap; + uniforms.lightMapIntensity.value = material.lightMapIntensity; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + } + + function refreshUniformsPhong( uniforms, material ) { + + uniforms.specular.value = material.specular; + uniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 ) + + if ( material.lightMap ) { + + uniforms.lightMap.value = material.lightMap; + uniforms.lightMapIntensity.value = material.lightMapIntensity; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + } + + function refreshUniformsStandard( uniforms, material ) { + + uniforms.roughness.value = material.roughness; + uniforms.metalness.value = material.metalness; + + if ( material.roughnessMap ) { + + uniforms.roughnessMap.value = material.roughnessMap; + + } + + if ( material.metalnessMap ) { + + uniforms.metalnessMap.value = material.metalnessMap; + + } + + if ( material.lightMap ) { + + uniforms.lightMap.value = material.lightMap; + uniforms.lightMapIntensity.value = material.lightMapIntensity; + + } + + if ( material.emissiveMap ) { + + uniforms.emissiveMap.value = material.emissiveMap; + + } + + if ( material.bumpMap ) { + + uniforms.bumpMap.value = material.bumpMap; + uniforms.bumpScale.value = material.bumpScale; + + } + + if ( material.normalMap ) { + + uniforms.normalMap.value = material.normalMap; + uniforms.normalScale.value.copy( material.normalScale ); + + } + + if ( material.displacementMap ) { + + uniforms.displacementMap.value = material.displacementMap; + uniforms.displacementScale.value = material.displacementScale; + uniforms.displacementBias.value = material.displacementBias; + + } + + if ( material.envMap ) { + + //uniforms.envMap.value = material.envMap; // part of uniforms common + uniforms.envMapIntensity.value = material.envMapIntensity; + + } + + } + + function refreshUniformsPhysical( uniforms, material ) { + + uniforms.clearCoat.value = material.clearCoat; + uniforms.clearCoatRoughness.value = material.clearCoatRoughness; + + refreshUniformsStandard( uniforms, material ); + + } + + // If uniforms are marked as clean, they don't need to be loaded to the GPU. + + function markUniformsLightsNeedsUpdate( uniforms, value ) { + + uniforms.ambientLightColor.needsUpdate = value; + + uniforms.directionalLights.needsUpdate = value; + uniforms.pointLights.needsUpdate = value; + uniforms.spotLights.needsUpdate = value; + uniforms.hemisphereLights.needsUpdate = value; + + } + + // Lighting + + function setupShadows( lights ) { + + var lightShadowsLength = 0; + + for ( var i = 0, l = lights.length; i < l; i ++ ) { + + var light = lights[ i ]; + + if ( light.castShadow ) { + + _lights.shadows[ lightShadowsLength ++ ] = light; + + } + + } + + _lights.shadows.length = lightShadowsLength; + + } + + function setupLights( lights, camera ) { + + var l, ll, light, + r = 0, g = 0, b = 0, + color, + intensity, + distance, + shadowMap, + + viewMatrix = camera.matrixWorldInverse, + + directionalLength = 0, + pointLength = 0, + spotLength = 0, + hemiLength = 0; + + for ( l = 0, ll = lights.length; l < ll; l ++ ) { + + light = lights[ l ]; + + color = light.color; + intensity = light.intensity; + distance = light.distance; + + shadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null; + + if ( light.isAmbientLight ) { + + r += color.r * intensity; + g += color.g * intensity; + b += color.b * intensity; + + } else if ( light.isDirectionalLight ) { + + var uniforms = lightCache.get( light ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity ); + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + _vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( _vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + uniforms.shadow = light.castShadow; + + if ( light.castShadow ) { + + uniforms.shadowBias = light.shadow.bias; + uniforms.shadowRadius = light.shadow.radius; + uniforms.shadowMapSize = light.shadow.mapSize; + + } + + _lights.directionalShadowMap[ directionalLength ] = shadowMap; + _lights.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix; + _lights.directional[ directionalLength ++ ] = uniforms; + + } else if ( light.isSpotLight ) { + + var uniforms = lightCache.get( light ); + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + uniforms.color.copy( color ).multiplyScalar( intensity ); + uniforms.distance = distance; + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + _vector3.setFromMatrixPosition( light.target.matrixWorld ); + uniforms.direction.sub( _vector3 ); + uniforms.direction.transformDirection( viewMatrix ); + + uniforms.coneCos = Math.cos( light.angle ); + uniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) ); + uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay; + + uniforms.shadow = light.castShadow; + + if ( light.castShadow ) { + + uniforms.shadowBias = light.shadow.bias; + uniforms.shadowRadius = light.shadow.radius; + uniforms.shadowMapSize = light.shadow.mapSize; + + } + + _lights.spotShadowMap[ spotLength ] = shadowMap; + _lights.spotShadowMatrix[ spotLength ] = light.shadow.matrix; + _lights.spot[ spotLength ++ ] = uniforms; + + } else if ( light.isPointLight ) { + + var uniforms = lightCache.get( light ); + + uniforms.position.setFromMatrixPosition( light.matrixWorld ); + uniforms.position.applyMatrix4( viewMatrix ); + + uniforms.color.copy( light.color ).multiplyScalar( light.intensity ); + uniforms.distance = light.distance; + uniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay; + + uniforms.shadow = light.castShadow; + + if ( light.castShadow ) { + + uniforms.shadowBias = light.shadow.bias; + uniforms.shadowRadius = light.shadow.radius; + uniforms.shadowMapSize = light.shadow.mapSize; + + } + + _lights.pointShadowMap[ pointLength ] = shadowMap; + + if ( _lights.pointShadowMatrix[ pointLength ] === undefined ) { + + _lights.pointShadowMatrix[ pointLength ] = new Matrix4(); + + } + + // for point lights we set the shadow matrix to be a translation-only matrix + // equal to inverse of the light's position + _vector3.setFromMatrixPosition( light.matrixWorld ).negate(); + _lights.pointShadowMatrix[ pointLength ].identity().setPosition( _vector3 ); + + _lights.point[ pointLength ++ ] = uniforms; + + } else if ( light.isHemisphereLight ) { + + var uniforms = lightCache.get( light ); + + uniforms.direction.setFromMatrixPosition( light.matrixWorld ); + uniforms.direction.transformDirection( viewMatrix ); + uniforms.direction.normalize(); + + uniforms.skyColor.copy( light.color ).multiplyScalar( intensity ); + uniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity ); + + _lights.hemi[ hemiLength ++ ] = uniforms; + + } + + } + + _lights.ambient[ 0 ] = r; + _lights.ambient[ 1 ] = g; + _lights.ambient[ 2 ] = b; + + _lights.directional.length = directionalLength; + _lights.spot.length = spotLength; + _lights.point.length = pointLength; + _lights.hemi.length = hemiLength; + + _lights.hash = directionalLength + ',' + pointLength + ',' + spotLength + ',' + hemiLength + ',' + _lights.shadows.length; + + } + + // GL state setting + + this.setFaceCulling = function ( cullFace, frontFaceDirection ) { + + state.setCullFace( cullFace ); + state.setFlipSided( frontFaceDirection === FrontFaceDirectionCW ); + + }; + + // Textures + + function allocTextureUnit() { + + var textureUnit = _usedTextureUnits; + + if ( textureUnit >= capabilities.maxTextures ) { + + console.warn( 'WebGLRenderer: trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures ); + + } + + _usedTextureUnits += 1; + + return textureUnit; + + } + + this.allocTextureUnit = allocTextureUnit; + + // this.setTexture2D = setTexture2D; + this.setTexture2D = ( function() { + + var warned = false; + + // backwards compatibility: peel texture.texture + return function setTexture2D( texture, slot ) { + + if ( texture && texture.isWebGLRenderTarget ) { + + if ( ! warned ) { + + console.warn( "THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead." ); + warned = true; + + } + + texture = texture.texture; + + } + + textures.setTexture2D( texture, slot ); + + }; + + }() ); + + this.setTexture = ( function() { + + var warned = false; + + return function setTexture( texture, slot ) { + + if ( ! warned ) { + + console.warn( "THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead." ); + warned = true; + + } + + textures.setTexture2D( texture, slot ); + + }; + + }() ); + + this.setTextureCube = ( function() { + + var warned = false; + + return function setTextureCube( texture, slot ) { + + // backwards compatibility: peel texture.texture + if ( texture && texture.isWebGLRenderTargetCube ) { + + if ( ! warned ) { + + console.warn( "THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead." ); + warned = true; + + } + + texture = texture.texture; + + } + + // currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture + // TODO: unify these code paths + if ( ( texture && texture.isCubeTexture ) || + ( Array.isArray( texture.image ) && texture.image.length === 6 ) ) { + + // CompressedTexture can have Array in image :/ + + // this function alone should take care of cube textures + textures.setTextureCube( texture, slot ); + + } else { + + // assumed: texture property of THREE.WebGLRenderTargetCube + + textures.setTextureCubeDynamic( texture, slot ); + + } + + }; + + }() ); + + this.getCurrentRenderTarget = function() { + + return _currentRenderTarget; + + }; + + this.setRenderTarget = function ( renderTarget ) { + + _currentRenderTarget = renderTarget; + + if ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) { + + textures.setupRenderTarget( renderTarget ); + + } + + var isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube ); + var framebuffer; + + if ( renderTarget ) { + + var renderTargetProperties = properties.get( renderTarget ); + + if ( isCube ) { + + framebuffer = renderTargetProperties.__webglFramebuffer[ renderTarget.activeCubeFace ]; + + } else { + + framebuffer = renderTargetProperties.__webglFramebuffer; + + } + + _currentScissor.copy( renderTarget.scissor ); + _currentScissorTest = renderTarget.scissorTest; + + _currentViewport.copy( renderTarget.viewport ); + + } else { + + framebuffer = null; + + _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ); + _currentScissorTest = _scissorTest; + + _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ); + + } + + if ( _currentFramebuffer !== framebuffer ) { + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer ); + _currentFramebuffer = framebuffer; + + } + + state.scissor( _currentScissor ); + state.setScissorTest( _currentScissorTest ); + + state.viewport( _currentViewport ); + + if ( isCube ) { + + var textureProperties = properties.get( renderTarget.texture ); + _gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel ); + + } + + }; + + this.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) { + + if ( ( renderTarget && renderTarget.isWebGLRenderTarget ) === false ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' ); + return; + + } + + var framebuffer = properties.get( renderTarget ).__webglFramebuffer; + + if ( framebuffer ) { + + var restore = false; + + if ( framebuffer !== _currentFramebuffer ) { + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer ); + + restore = true; + + } + + try { + + var texture = renderTarget.texture; + var textureFormat = texture.format; + var textureType = texture.type; + + if ( textureFormat !== RGBAFormat && paramThreeToGL( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' ); + return; + + } + + if ( textureType !== UnsignedByteType && paramThreeToGL( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513) + ! ( textureType === FloatType && ( extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox + ! ( textureType === HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' ); + return; + + } + + if ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) { + + // the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604) + + if ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) { + + _gl.readPixels( x, y, width, height, paramThreeToGL( textureFormat ), paramThreeToGL( textureType ), buffer ); + + } + + } else { + + console.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' ); + + } + + } finally { + + if ( restore ) { + + _gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer ); + + } + + } + + } + + }; + + // Map three.js constants to WebGL constants + + function paramThreeToGL( p ) { + + var extension; + + if ( p === RepeatWrapping ) return _gl.REPEAT; + if ( p === ClampToEdgeWrapping ) return _gl.CLAMP_TO_EDGE; + if ( p === MirroredRepeatWrapping ) return _gl.MIRRORED_REPEAT; + + if ( p === NearestFilter ) return _gl.NEAREST; + if ( p === NearestMipMapNearestFilter ) return _gl.NEAREST_MIPMAP_NEAREST; + if ( p === NearestMipMapLinearFilter ) return _gl.NEAREST_MIPMAP_LINEAR; + + if ( p === LinearFilter ) return _gl.LINEAR; + if ( p === LinearMipMapNearestFilter ) return _gl.LINEAR_MIPMAP_NEAREST; + if ( p === LinearMipMapLinearFilter ) return _gl.LINEAR_MIPMAP_LINEAR; + + if ( p === UnsignedByteType ) return _gl.UNSIGNED_BYTE; + if ( p === UnsignedShort4444Type ) return _gl.UNSIGNED_SHORT_4_4_4_4; + if ( p === UnsignedShort5551Type ) return _gl.UNSIGNED_SHORT_5_5_5_1; + if ( p === UnsignedShort565Type ) return _gl.UNSIGNED_SHORT_5_6_5; + + if ( p === ByteType ) return _gl.BYTE; + if ( p === ShortType ) return _gl.SHORT; + if ( p === UnsignedShortType ) return _gl.UNSIGNED_SHORT; + if ( p === IntType ) return _gl.INT; + if ( p === UnsignedIntType ) return _gl.UNSIGNED_INT; + if ( p === FloatType ) return _gl.FLOAT; + + if ( p === HalfFloatType ) { + + extension = extensions.get( 'OES_texture_half_float' ); + + if ( extension !== null ) return extension.HALF_FLOAT_OES; + + } + + if ( p === AlphaFormat ) return _gl.ALPHA; + if ( p === RGBFormat ) return _gl.RGB; + if ( p === RGBAFormat ) return _gl.RGBA; + if ( p === LuminanceFormat ) return _gl.LUMINANCE; + if ( p === LuminanceAlphaFormat ) return _gl.LUMINANCE_ALPHA; + if ( p === DepthFormat ) return _gl.DEPTH_COMPONENT; + if ( p === DepthStencilFormat ) return _gl.DEPTH_STENCIL; + + if ( p === AddEquation ) return _gl.FUNC_ADD; + if ( p === SubtractEquation ) return _gl.FUNC_SUBTRACT; + if ( p === ReverseSubtractEquation ) return _gl.FUNC_REVERSE_SUBTRACT; + + if ( p === ZeroFactor ) return _gl.ZERO; + if ( p === OneFactor ) return _gl.ONE; + if ( p === SrcColorFactor ) return _gl.SRC_COLOR; + if ( p === OneMinusSrcColorFactor ) return _gl.ONE_MINUS_SRC_COLOR; + if ( p === SrcAlphaFactor ) return _gl.SRC_ALPHA; + if ( p === OneMinusSrcAlphaFactor ) return _gl.ONE_MINUS_SRC_ALPHA; + if ( p === DstAlphaFactor ) return _gl.DST_ALPHA; + if ( p === OneMinusDstAlphaFactor ) return _gl.ONE_MINUS_DST_ALPHA; + + if ( p === DstColorFactor ) return _gl.DST_COLOR; + if ( p === OneMinusDstColorFactor ) return _gl.ONE_MINUS_DST_COLOR; + if ( p === SrcAlphaSaturateFactor ) return _gl.SRC_ALPHA_SATURATE; + + if ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format || + p === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_s3tc' ); + + if ( extension !== null ) { + + if ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT; + if ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT; + if ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT; + + } + + } + + if ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format || + p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + + if ( extension !== null ) { + + if ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG; + if ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG; + if ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG; + if ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG; + + } + + } + + if ( p === RGB_ETC1_Format ) { + + extension = extensions.get( 'WEBGL_compressed_texture_etc1' ); + + if ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL; + + } + + if ( p === MinEquation || p === MaxEquation ) { + + extension = extensions.get( 'EXT_blend_minmax' ); + + if ( extension !== null ) { + + if ( p === MinEquation ) return extension.MIN_EXT; + if ( p === MaxEquation ) return extension.MAX_EXT; + + } + + } + + if ( p === UnsignedInt248Type ) { + + extension = extensions.get( 'WEBGL_depth_texture' ); + + if ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL; + + } + + return 0; + + } + + } + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function FogExp2 ( color, density ) { + + this.name = ''; + + this.color = new Color( color ); + this.density = ( density !== undefined ) ? density : 0.00025; + + } + + FogExp2.prototype.isFogExp2 = true; + + FogExp2.prototype.clone = function () { + + return new FogExp2( this.color.getHex(), this.density ); + + }; + + FogExp2.prototype.toJSON = function ( meta ) { + + return { + type: 'FogExp2', + color: this.color.getHex(), + density: this.density + }; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Fog ( color, near, far ) { + + this.name = ''; + + this.color = new Color( color ); + + this.near = ( near !== undefined ) ? near : 1; + this.far = ( far !== undefined ) ? far : 1000; + + } + + Fog.prototype.isFog = true; + + Fog.prototype.clone = function () { + + return new Fog( this.color.getHex(), this.near, this.far ); + + }; + + Fog.prototype.toJSON = function ( meta ) { + + return { + type: 'Fog', + color: this.color.getHex(), + near: this.near, + far: this.far + }; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Scene () { + + Object3D.call( this ); + + this.type = 'Scene'; + + this.background = null; + this.fog = null; + this.overrideMaterial = null; + + this.autoUpdate = true; // checked by the renderer + + } + + Scene.prototype = Object.create( Object3D.prototype ); + + Scene.prototype.constructor = Scene; + + Scene.prototype.copy = function ( source, recursive ) { + + Object3D.prototype.copy.call( this, source, recursive ); + + if ( source.background !== null ) this.background = source.background.clone(); + if ( source.fog !== null ) this.fog = source.fog.clone(); + if ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone(); + + this.autoUpdate = source.autoUpdate; + this.matrixAutoUpdate = source.matrixAutoUpdate; + + return this; + + }; + + Scene.prototype.toJSON = function ( meta ) { + + var data = Object3D.prototype.toJSON.call( this, meta ); + + if ( this.background !== null ) data.object.background = this.background.toJSON( meta ); + if ( this.fog !== null ) data.object.fog = this.fog.toJSON(); + + return data; + + }; + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + */ + + function LensFlare( texture, size, distance, blending, color ) { + + Object3D.call( this ); + + this.lensFlares = []; + + this.positionScreen = new Vector3(); + this.customUpdateCallback = undefined; + + if ( texture !== undefined ) { + + this.add( texture, size, distance, blending, color ); + + } + + } + + LensFlare.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: LensFlare, + + isLensFlare: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.positionScreen.copy( source.positionScreen ); + this.customUpdateCallback = source.customUpdateCallback; + + for ( var i = 0, l = source.lensFlares.length; i < l; i ++ ) { + + this.lensFlares.push( source.lensFlares[ i ] ); + + } + + return this; + + }, + + add: function ( texture, size, distance, blending, color, opacity ) { + + if ( size === undefined ) size = - 1; + if ( distance === undefined ) distance = 0; + if ( opacity === undefined ) opacity = 1; + if ( color === undefined ) color = new Color( 0xffffff ); + if ( blending === undefined ) blending = NormalBlending; + + distance = Math.min( distance, Math.max( 0, distance ) ); + + this.lensFlares.push( { + texture: texture, // THREE.Texture + size: size, // size in pixels (-1 = use texture.width) + distance: distance, // distance (0-1) from light source (0=at light source) + x: 0, y: 0, z: 0, // screen position (-1 => 1) z = 0 is in front z = 1 is back + scale: 1, // scale + rotation: 0, // rotation + opacity: opacity, // opacity + color: color, // color + blending: blending // blending + } ); + + }, + + /* + * Update lens flares update positions on all flares based on the screen position + * Set myLensFlare.customUpdateCallback to alter the flares in your project specific way. + */ + + updateLensFlares: function () { + + var f, fl = this.lensFlares.length; + var flare; + var vecX = - this.positionScreen.x * 2; + var vecY = - this.positionScreen.y * 2; + + for ( f = 0; f < fl; f ++ ) { + + flare = this.lensFlares[ f ]; + + flare.x = this.positionScreen.x + vecX * flare.distance; + flare.y = this.positionScreen.y + vecY * flare.distance; + + flare.wantedRotation = flare.x * Math.PI * 0.25; + flare.rotation += ( flare.wantedRotation - flare.rotation ) * 0.25; + + } + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * + * uvOffset: new THREE.Vector2(), + * uvScale: new THREE.Vector2() + * } + */ + + function SpriteMaterial( parameters ) { + + Material.call( this ); + + this.type = 'SpriteMaterial'; + + this.color = new Color( 0xffffff ); + this.map = null; + + this.rotation = 0; + + this.fog = false; + this.lights = false; + + this.setValues( parameters ); + + } + + SpriteMaterial.prototype = Object.create( Material.prototype ); + SpriteMaterial.prototype.constructor = SpriteMaterial; + + SpriteMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + this.map = source.map; + + this.rotation = source.rotation; + + return this; + + }; + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Sprite( material ) { + + Object3D.call( this ); + + this.type = 'Sprite'; + + this.material = ( material !== undefined ) ? material : new SpriteMaterial(); + + } + + Sprite.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Sprite, + + isSprite: true, + + raycast: ( function () { + + var matrixPosition = new Vector3(); + + return function raycast( raycaster, intersects ) { + + matrixPosition.setFromMatrixPosition( this.matrixWorld ); + + var distanceSq = raycaster.ray.distanceSqToPoint( matrixPosition ); + var guessSizeSq = this.scale.x * this.scale.y / 4; + + if ( distanceSq > guessSizeSq ) { + + return; + + } + + intersects.push( { + + distance: Math.sqrt( distanceSq ), + point: this.position, + face: null, + object: this + + } ); + + }; + + }() ), + + clone: function () { + + return new this.constructor( this.material ).copy( this ); + + } + + } ); + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + function LOD() { + + Object3D.call( this ); + + this.type = 'LOD'; + + Object.defineProperties( this, { + levels: { + enumerable: true, + value: [] + } + } ); + + } + + + LOD.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: LOD, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source, false ); + + var levels = source.levels; + + for ( var i = 0, l = levels.length; i < l; i ++ ) { + + var level = levels[ i ]; + + this.addLevel( level.object.clone(), level.distance ); + + } + + return this; + + }, + + addLevel: function ( object, distance ) { + + if ( distance === undefined ) distance = 0; + + distance = Math.abs( distance ); + + var levels = this.levels; + + for ( var l = 0; l < levels.length; l ++ ) { + + if ( distance < levels[ l ].distance ) { + + break; + + } + + } + + levels.splice( l, 0, { distance: distance, object: object } ); + + this.add( object ); + + }, + + getObjectForDistance: function ( distance ) { + + var levels = this.levels; + + for ( var i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance < levels[ i ].distance ) { + + break; + + } + + } + + return levels[ i - 1 ].object; + + }, + + raycast: ( function () { + + var matrixPosition = new Vector3(); + + return function raycast( raycaster, intersects ) { + + matrixPosition.setFromMatrixPosition( this.matrixWorld ); + + var distance = raycaster.ray.origin.distanceTo( matrixPosition ); + + this.getObjectForDistance( distance ).raycast( raycaster, intersects ); + + }; + + }() ), + + update: function () { + + var v1 = new Vector3(); + var v2 = new Vector3(); + + return function update( camera ) { + + var levels = this.levels; + + if ( levels.length > 1 ) { + + v1.setFromMatrixPosition( camera.matrixWorld ); + v2.setFromMatrixPosition( this.matrixWorld ); + + var distance = v1.distanceTo( v2 ); + + levels[ 0 ].object.visible = true; + + for ( var i = 1, l = levels.length; i < l; i ++ ) { + + if ( distance >= levels[ i ].distance ) { + + levels[ i - 1 ].object.visible = false; + levels[ i ].object.visible = true; + + } else { + + break; + + } + + } + + for ( ; i < l; i ++ ) { + + levels[ i ].object.visible = false; + + } + + } + + }; + + }(), + + toJSON: function ( meta ) { + + var data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.levels = []; + + var levels = this.levels; + + for ( var i = 0, l = levels.length; i < l; i ++ ) { + + var level = levels[ i ]; + + data.object.levels.push( { + object: level.object.uuid, + distance: level.distance + } ); + + } + + return data; + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) { + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { data: data, width: width, height: height }; + + this.magFilter = magFilter !== undefined ? magFilter : NearestFilter; + this.minFilter = minFilter !== undefined ? minFilter : NearestFilter; + + this.generateMipmaps = false; + this.flipY = false; + this.unpackAlignment = 1; + + } + + DataTexture.prototype = Object.create( Texture.prototype ); + DataTexture.prototype.constructor = DataTexture; + + DataTexture.prototype.isDataTexture = true; + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author michael guerrero / http://realitymeltdown.com + * @author ikerr / http://verold.com + */ + + function Skeleton( bones, boneInverses, useVertexTexture ) { + + this.useVertexTexture = useVertexTexture !== undefined ? useVertexTexture : true; + + this.identityMatrix = new Matrix4(); + + // copy the bone array + + bones = bones || []; + + this.bones = bones.slice( 0 ); + + // create a bone texture or an array of floats + + if ( this.useVertexTexture ) { + + // layout (1 matrix = 4 pixels) + // RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4) + // with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8) + // 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16) + // 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32) + // 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64) + + + var size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix + size = _Math.nextPowerOfTwo( Math.ceil( size ) ); + size = Math.max( size, 4 ); + + this.boneTextureWidth = size; + this.boneTextureHeight = size; + + this.boneMatrices = new Float32Array( this.boneTextureWidth * this.boneTextureHeight * 4 ); // 4 floats per RGBA pixel + this.boneTexture = new DataTexture( this.boneMatrices, this.boneTextureWidth, this.boneTextureHeight, RGBAFormat, FloatType ); + + } else { + + this.boneMatrices = new Float32Array( 16 * this.bones.length ); + + } + + // use the supplied bone inverses or calculate the inverses + + if ( boneInverses === undefined ) { + + this.calculateInverses(); + + } else { + + if ( this.bones.length === boneInverses.length ) { + + this.boneInverses = boneInverses.slice( 0 ); + + } else { + + console.warn( 'THREE.Skeleton bonInverses is the wrong length.' ); + + this.boneInverses = []; + + for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) { + + this.boneInverses.push( new Matrix4() ); + + } + + } + + } + + } + + Object.assign( Skeleton.prototype, { + + calculateInverses: function () { + + this.boneInverses = []; + + for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) { + + var inverse = new Matrix4(); + + if ( this.bones[ b ] ) { + + inverse.getInverse( this.bones[ b ].matrixWorld ); + + } + + this.boneInverses.push( inverse ); + + } + + }, + + pose: function () { + + var bone; + + // recover the bind-time world matrices + + for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) { + + bone = this.bones[ b ]; + + if ( bone ) { + + bone.matrixWorld.getInverse( this.boneInverses[ b ] ); + + } + + } + + // compute the local matrices, positions, rotations and scales + + for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) { + + bone = this.bones[ b ]; + + if ( bone ) { + + if ( (bone.parent && bone.parent.isBone) ) { + + bone.matrix.getInverse( bone.parent.matrixWorld ); + bone.matrix.multiply( bone.matrixWorld ); + + } else { + + bone.matrix.copy( bone.matrixWorld ); + + } + + bone.matrix.decompose( bone.position, bone.quaternion, bone.scale ); + + } + + } + + }, + + update: ( function () { + + var offsetMatrix = new Matrix4(); + + return function update() { + + // flatten bone matrices to array + + for ( var b = 0, bl = this.bones.length; b < bl; b ++ ) { + + // compute the offset between the current and the original transform + + var matrix = this.bones[ b ] ? this.bones[ b ].matrixWorld : this.identityMatrix; + + offsetMatrix.multiplyMatrices( matrix, this.boneInverses[ b ] ); + offsetMatrix.toArray( this.boneMatrices, b * 16 ); + + } + + if ( this.useVertexTexture ) { + + this.boneTexture.needsUpdate = true; + + } + + }; + + } )(), + + clone: function () { + + return new Skeleton( this.bones, this.boneInverses, this.useVertexTexture ); + + } + + } ); + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author ikerr / http://verold.com + */ + + function Bone( skin ) { + + Object3D.call( this ); + + this.type = 'Bone'; + + this.skin = skin; + + } + + Bone.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Bone, + + isBone: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.skin = source.skin; + + return this; + + } + + } ); + + /** + * @author mikael emtinger / http://gomo.se/ + * @author alteredq / http://alteredqualia.com/ + * @author ikerr / http://verold.com + */ + + function SkinnedMesh( geometry, material, useVertexTexture ) { + + Mesh.call( this, geometry, material ); + + this.type = 'SkinnedMesh'; + + this.bindMode = "attached"; + this.bindMatrix = new Matrix4(); + this.bindMatrixInverse = new Matrix4(); + + // init bones + + // TODO: remove bone creation as there is no reason (other than + // convenience) for THREE.SkinnedMesh to do this. + + var bones = []; + + if ( this.geometry && this.geometry.bones !== undefined ) { + + var bone, gbone; + + for ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) { + + gbone = this.geometry.bones[ b ]; + + bone = new Bone( this ); + bones.push( bone ); + + bone.name = gbone.name; + bone.position.fromArray( gbone.pos ); + bone.quaternion.fromArray( gbone.rotq ); + if ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl ); + + } + + for ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) { + + gbone = this.geometry.bones[ b ]; + + if ( gbone.parent !== - 1 && gbone.parent !== null && + bones[ gbone.parent ] !== undefined ) { + + bones[ gbone.parent ].add( bones[ b ] ); + + } else { + + this.add( bones[ b ] ); + + } + + } + + } + + this.normalizeSkinWeights(); + + this.updateMatrixWorld( true ); + this.bind( new Skeleton( bones, undefined, useVertexTexture ), this.matrixWorld ); + + } + + + SkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), { + + constructor: SkinnedMesh, + + isSkinnedMesh: true, + + bind: function( skeleton, bindMatrix ) { + + this.skeleton = skeleton; + + if ( bindMatrix === undefined ) { + + this.updateMatrixWorld( true ); + + this.skeleton.calculateInverses(); + + bindMatrix = this.matrixWorld; + + } + + this.bindMatrix.copy( bindMatrix ); + this.bindMatrixInverse.getInverse( bindMatrix ); + + }, + + pose: function () { + + this.skeleton.pose(); + + }, + + normalizeSkinWeights: function () { + + if ( (this.geometry && this.geometry.isGeometry) ) { + + for ( var i = 0; i < this.geometry.skinWeights.length; i ++ ) { + + var sw = this.geometry.skinWeights[ i ]; + + var scale = 1.0 / sw.lengthManhattan(); + + if ( scale !== Infinity ) { + + sw.multiplyScalar( scale ); + + } else { + + sw.set( 1, 0, 0, 0 ); // do something reasonable + + } + + } + + } else if ( (this.geometry && this.geometry.isBufferGeometry) ) { + + var vec = new Vector4(); + + var skinWeight = this.geometry.attributes.skinWeight; + + for ( var i = 0; i < skinWeight.count; i ++ ) { + + vec.x = skinWeight.getX( i ); + vec.y = skinWeight.getY( i ); + vec.z = skinWeight.getZ( i ); + vec.w = skinWeight.getW( i ); + + var scale = 1.0 / vec.lengthManhattan(); + + if ( scale !== Infinity ) { + + vec.multiplyScalar( scale ); + + } else { + + vec.set( 1, 0, 0, 0 ); // do something reasonable + + } + + skinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w ); + + } + + } + + }, + + updateMatrixWorld: function( force ) { + + Mesh.prototype.updateMatrixWorld.call( this, true ); + + if ( this.bindMode === "attached" ) { + + this.bindMatrixInverse.getInverse( this.matrixWorld ); + + } else if ( this.bindMode === "detached" ) { + + this.bindMatrixInverse.getInverse( this.bindMatrix ); + + } else { + + console.warn( 'THREE.SkinnedMesh unrecognized bindMode: ' + this.bindMode ); + + } + + }, + + clone: function() { + + return new this.constructor( this.geometry, this.material, this.skeleton.useVertexTexture ).copy( this ); + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * linecap: "round", + * linejoin: "round" + * } + */ + + function LineBasicMaterial( parameters ) { + + Material.call( this ); + + this.type = 'LineBasicMaterial'; + + this.color = new Color( 0xffffff ); + + this.linewidth = 1; + this.linecap = 'round'; + this.linejoin = 'round'; + + this.lights = false; + + this.setValues( parameters ); + + } + + LineBasicMaterial.prototype = Object.create( Material.prototype ); + LineBasicMaterial.prototype.constructor = LineBasicMaterial; + + LineBasicMaterial.prototype.isLineBasicMaterial = true; + + LineBasicMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.linewidth = source.linewidth; + this.linecap = source.linecap; + this.linejoin = source.linejoin; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Line( geometry, material, mode ) { + + if ( mode === 1 ) { + + console.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' ); + return new LineSegments( geometry, material ); + + } + + Object3D.call( this ); + + this.type = 'Line'; + + this.geometry = geometry !== undefined ? geometry : new BufferGeometry(); + this.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } ); + + } + + Line.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Line, + + isLine: true, + + raycast: ( function () { + + var inverseMatrix = new Matrix4(); + var ray = new Ray(); + var sphere = new Sphere(); + + return function raycast( raycaster, intersects ) { + + var precision = raycaster.linePrecision; + var precisionSq = precision * precision; + + var geometry = this.geometry; + var matrixWorld = this.matrixWorld; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + sphere.copy( geometry.boundingSphere ); + sphere.applyMatrix4( matrixWorld ); + + if ( raycaster.ray.intersectsSphere( sphere ) === false ) return; + + // + + inverseMatrix.getInverse( matrixWorld ); + ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix ); + + var vStart = new Vector3(); + var vEnd = new Vector3(); + var interSegment = new Vector3(); + var interRay = new Vector3(); + var step = (this && this.isLineSegments) ? 2 : 1; + + if ( (geometry && geometry.isBufferGeometry) ) { + + var index = geometry.index; + var attributes = geometry.attributes; + var positions = attributes.position.array; + + if ( index !== null ) { + + var indices = index.array; + + for ( var i = 0, l = indices.length - 1; i < l; i += step ) { + + var a = indices[ i ]; + var b = indices[ i + 1 ]; + + vStart.fromArray( positions, a * 3 ); + vEnd.fromArray( positions, b * 3 ); + + var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > precisionSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + var distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } else { + + for ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) { + + vStart.fromArray( positions, 3 * i ); + vEnd.fromArray( positions, 3 * i + 3 ); + + var distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment ); + + if ( distSq > precisionSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + var distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } + + } else if ( (geometry && geometry.isGeometry) ) { + + var vertices = geometry.vertices; + var nbVertices = vertices.length; + + for ( var i = 0; i < nbVertices - 1; i += step ) { + + var distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment ); + + if ( distSq > precisionSq ) continue; + + interRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation + + var distance = raycaster.ray.origin.distanceTo( interRay ); + + if ( distance < raycaster.near || distance > raycaster.far ) continue; + + intersects.push( { + + distance: distance, + // What do we want? intersection point on the ray or on the segment?? + // point: raycaster.ray.at( distance ), + point: interSegment.clone().applyMatrix4( this.matrixWorld ), + index: i, + face: null, + faceIndex: null, + object: this + + } ); + + } + + } + + }; + + }() ), + + clone: function () { + + return new this.constructor( this.geometry, this.material ).copy( this ); + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function LineSegments( geometry, material ) { + + Line.call( this, geometry, material ); + + this.type = 'LineSegments'; + + } + + LineSegments.prototype = Object.assign( Object.create( Line.prototype ), { + + constructor: LineSegments, + + isLineSegments: true + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * map: new THREE.Texture( ), + * + * size: , + * sizeAttenuation: + * } + */ + + function PointsMaterial( parameters ) { + + Material.call( this ); + + this.type = 'PointsMaterial'; + + this.color = new Color( 0xffffff ); + + this.map = null; + + this.size = 1; + this.sizeAttenuation = true; + + this.lights = false; + + this.setValues( parameters ); + + } + + PointsMaterial.prototype = Object.create( Material.prototype ); + PointsMaterial.prototype.constructor = PointsMaterial; + + PointsMaterial.prototype.isPointsMaterial = true; + + PointsMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.size = source.size; + this.sizeAttenuation = source.sizeAttenuation; + + return this; + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function Points( geometry, material ) { + + Object3D.call( this ); + + this.type = 'Points'; + + this.geometry = geometry !== undefined ? geometry : new BufferGeometry(); + this.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } ); + + } + + Points.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Points, + + isPoints: true, + + raycast: ( function () { + + var inverseMatrix = new Matrix4(); + var ray = new Ray(); + var sphere = new Sphere(); + + return function raycast( raycaster, intersects ) { + + var object = this; + var geometry = this.geometry; + var matrixWorld = this.matrixWorld; + var threshold = raycaster.params.Points.threshold; + + // Checking boundingSphere distance to ray + + if ( geometry.boundingSphere === null ) geometry.computeBoundingSphere(); + + sphere.copy( geometry.boundingSphere ); + sphere.applyMatrix4( matrixWorld ); + + if ( raycaster.ray.intersectsSphere( sphere ) === false ) return; + + // + + inverseMatrix.getInverse( matrixWorld ); + ray.copy( raycaster.ray ).applyMatrix4( inverseMatrix ); + + var localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 ); + var localThresholdSq = localThreshold * localThreshold; + var position = new Vector3(); + + function testPoint( point, index ) { + + var rayPointDistanceSq = ray.distanceSqToPoint( point ); + + if ( rayPointDistanceSq < localThresholdSq ) { + + var intersectPoint = ray.closestPointToPoint( point ); + intersectPoint.applyMatrix4( matrixWorld ); + + var distance = raycaster.ray.origin.distanceTo( intersectPoint ); + + if ( distance < raycaster.near || distance > raycaster.far ) return; + + intersects.push( { + + distance: distance, + distanceToRay: Math.sqrt( rayPointDistanceSq ), + point: intersectPoint.clone(), + index: index, + face: null, + object: object + + } ); + + } + + } + + if ( (geometry && geometry.isBufferGeometry) ) { + + var index = geometry.index; + var attributes = geometry.attributes; + var positions = attributes.position.array; + + if ( index !== null ) { + + var indices = index.array; + + for ( var i = 0, il = indices.length; i < il; i ++ ) { + + var a = indices[ i ]; + + position.fromArray( positions, a * 3 ); + + testPoint( position, a ); + + } + + } else { + + for ( var i = 0, l = positions.length / 3; i < l; i ++ ) { + + position.fromArray( positions, i * 3 ); + + testPoint( position, i ); + + } + + } + + } else { + + var vertices = geometry.vertices; + + for ( var i = 0, l = vertices.length; i < l; i ++ ) { + + testPoint( vertices[ i ], i ); + + } + + } + + }; + + }() ), + + clone: function () { + + return new this.constructor( this.geometry, this.material ).copy( this ); + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Group() { + + Object3D.call( this ); + + this.type = 'Group'; + + } + + Group.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Group + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + Texture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.generateMipmaps = false; + + var scope = this; + + function update() { + + requestAnimationFrame( update ); + + if ( video.readyState >= video.HAVE_CURRENT_DATA ) { + + scope.needsUpdate = true; + + } + + } + + update(); + + } + + VideoTexture.prototype = Object.create( Texture.prototype ); + VideoTexture.prototype.constructor = VideoTexture; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) { + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ); + + this.image = { width: width, height: height }; + this.mipmaps = mipmaps; + + // no flipping for cube textures + // (also flipping doesn't work for compressed textures ) + + this.flipY = false; + + // can't generate mipmaps for compressed textures + // mips must be embedded in DDS files + + this.generateMipmaps = false; + + } + + CompressedTexture.prototype = Object.create( Texture.prototype ); + CompressedTexture.prototype.constructor = CompressedTexture; + + CompressedTexture.prototype.isCompressedTexture = true; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) { + + Texture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.needsUpdate = true; + + } + + CanvasTexture.prototype = Object.create( Texture.prototype ); + CanvasTexture.prototype.constructor = CanvasTexture; + + /** + * @author Matt DesLauriers / @mattdesl + * @author atix / arthursilber.de + */ + + function DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) { + + format = format !== undefined ? format : DepthFormat; + + if ( format !== DepthFormat && format !== DepthStencilFormat ) { + + throw new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' ) + + } + + Texture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ); + + this.image = { width: width, height: height }; + + this.type = type !== undefined ? type : UnsignedShortType; + + this.magFilter = magFilter !== undefined ? magFilter : NearestFilter; + this.minFilter = minFilter !== undefined ? minFilter : NearestFilter; + + this.flipY = false; + this.generateMipmaps = false; + + } + + DepthTexture.prototype = Object.create( Texture.prototype ); + DepthTexture.prototype.constructor = DepthTexture; + DepthTexture.prototype.isDepthTexture = true; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function WireframeGeometry( geometry ) { + + BufferGeometry.call( this ); + + var edge = [ 0, 0 ], hash = {}; + + function sortFunction( a, b ) { + + return a - b; + + } + + var keys = [ 'a', 'b', 'c' ]; + + if ( (geometry && geometry.isGeometry) ) { + + var vertices = geometry.vertices; + var faces = geometry.faces; + var numEdges = 0; + + // allocate maximal size + var edges = new Uint32Array( 6 * faces.length ); + + for ( var i = 0, l = faces.length; i < l; i ++ ) { + + var face = faces[ i ]; + + for ( var j = 0; j < 3; j ++ ) { + + edge[ 0 ] = face[ keys[ j ] ]; + edge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ]; + edge.sort( sortFunction ); + + var key = edge.toString(); + + if ( hash[ key ] === undefined ) { + + edges[ 2 * numEdges ] = edge[ 0 ]; + edges[ 2 * numEdges + 1 ] = edge[ 1 ]; + hash[ key ] = true; + numEdges ++; + + } + + } + + } + + var coords = new Float32Array( numEdges * 2 * 3 ); + + for ( var i = 0, l = numEdges; i < l; i ++ ) { + + for ( var j = 0; j < 2; j ++ ) { + + var vertex = vertices[ edges [ 2 * i + j ] ]; + + var index = 6 * i + 3 * j; + coords[ index + 0 ] = vertex.x; + coords[ index + 1 ] = vertex.y; + coords[ index + 2 ] = vertex.z; + + } + + } + + this.addAttribute( 'position', new BufferAttribute( coords, 3 ) ); + + } else if ( (geometry && geometry.isBufferGeometry) ) { + + if ( geometry.index !== null ) { + + // Indexed BufferGeometry + + var indices = geometry.index.array; + var vertices = geometry.attributes.position; + var groups = geometry.groups; + var numEdges = 0; + + if ( groups.length === 0 ) { + + geometry.addGroup( 0, indices.length ); + + } + + // allocate maximal size + var edges = new Uint32Array( 2 * indices.length ); + + for ( var o = 0, ol = groups.length; o < ol; ++ o ) { + + var group = groups[ o ]; + + var start = group.start; + var count = group.count; + + for ( var i = start, il = start + count; i < il; i += 3 ) { + + for ( var j = 0; j < 3; j ++ ) { + + edge[ 0 ] = indices[ i + j ]; + edge[ 1 ] = indices[ i + ( j + 1 ) % 3 ]; + edge.sort( sortFunction ); + + var key = edge.toString(); + + if ( hash[ key ] === undefined ) { + + edges[ 2 * numEdges ] = edge[ 0 ]; + edges[ 2 * numEdges + 1 ] = edge[ 1 ]; + hash[ key ] = true; + numEdges ++; + + } + + } + + } + + } + + var coords = new Float32Array( numEdges * 2 * 3 ); + + for ( var i = 0, l = numEdges; i < l; i ++ ) { + + for ( var j = 0; j < 2; j ++ ) { + + var index = 6 * i + 3 * j; + var index2 = edges[ 2 * i + j ]; + + coords[ index + 0 ] = vertices.getX( index2 ); + coords[ index + 1 ] = vertices.getY( index2 ); + coords[ index + 2 ] = vertices.getZ( index2 ); + + } + + } + + this.addAttribute( 'position', new BufferAttribute( coords, 3 ) ); + + } else { + + // non-indexed BufferGeometry + + var vertices = geometry.attributes.position.array; + var numEdges = vertices.length / 3; + var numTris = numEdges / 3; + + var coords = new Float32Array( numEdges * 2 * 3 ); + + for ( var i = 0, l = numTris; i < l; i ++ ) { + + for ( var j = 0; j < 3; j ++ ) { + + var index = 18 * i + 6 * j; + + var index1 = 9 * i + 3 * j; + coords[ index + 0 ] = vertices[ index1 ]; + coords[ index + 1 ] = vertices[ index1 + 1 ]; + coords[ index + 2 ] = vertices[ index1 + 2 ]; + + var index2 = 9 * i + 3 * ( ( j + 1 ) % 3 ); + coords[ index + 3 ] = vertices[ index2 ]; + coords[ index + 4 ] = vertices[ index2 + 1 ]; + coords[ index + 5 ] = vertices[ index2 + 2 ]; + + } + + } + + this.addAttribute( 'position', new BufferAttribute( coords, 3 ) ); + + } + + } + + } + + WireframeGeometry.prototype = Object.create( BufferGeometry.prototype ); + WireframeGeometry.prototype.constructor = WireframeGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + * + * Parametric Surfaces Geometry + * based on the brilliant article by @prideout http://prideout.net/blog/?p=44 + */ + + function ParametricBufferGeometry( func, slices, stacks ) { + + BufferGeometry.call( this ); + + this.type = 'ParametricBufferGeometry'; + + this.parameters = { + func: func, + slices: slices, + stacks: stacks + }; + + // generate vertices and uvs + + var vertices = []; + var uvs = []; + + var i, j, p; + var u, v; + + var sliceCount = slices + 1; + + for ( i = 0; i <= stacks; i ++ ) { + + v = i / stacks; + + for ( j = 0; j <= slices; j ++ ) { + + u = j / slices; + + p = func( u, v ); + vertices.push( p.x, p.y, p.z ); + + uvs.push( u, v ); + + } + + } + + // generate indices + + var indices = []; + var a, b, c, d; + + for ( i = 0; i < stacks; i ++ ) { + + for ( j = 0; j < slices; j ++ ) { + + a = i * sliceCount + j; + b = i * sliceCount + j + 1; + c = ( i + 1 ) * sliceCount + j + 1; + d = ( i + 1 ) * sliceCount + j; + + // faces one and two + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + // build geometry + + this.setIndex( ( indices.length > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) ); + this.addAttribute( 'position', Float32Attribute( vertices, 3 ) ); + this.addAttribute( 'uv', Float32Attribute( uvs, 2 ) ); + + // generate normals + + this.computeVertexNormals(); + + } + + ParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + ParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry; + + /** + * @author zz85 / https://github.com/zz85 + * + * Parametric Surfaces Geometry + * based on the brilliant article by @prideout http://prideout.net/blog/?p=44 + */ + + function ParametricGeometry( func, slices, stacks ) { + + Geometry.call( this ); + + this.type = 'ParametricGeometry'; + + this.parameters = { + func: func, + slices: slices, + stacks: stacks + }; + + this.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) ); + this.mergeVertices(); + + } + + ParametricGeometry.prototype = Object.create( Geometry.prototype ); + ParametricGeometry.prototype.constructor = ParametricGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function PolyhedronBufferGeometry( vertices, indices, radius, detail ) { + + BufferGeometry.call( this ); + + this.type = 'PolyhedronBufferGeometry'; + + this.parameters = { + vertices: vertices, + indices: indices, + radius: radius, + detail: detail + }; + + radius = radius || 1; + detail = detail || 0; + + // default buffer data + + var vertexBuffer = []; + var uvBuffer = []; + + // the subdivision creates the vertex buffer data + + subdivide( detail ); + + // all vertices should lie on a conceptual sphere with a given radius + + appplyRadius( radius ); + + // finally, create the uv data + + generateUVs(); + + // build non-indexed geometry + + this.addAttribute( 'position', Float32Attribute( vertexBuffer, 3 ) ); + this.addAttribute( 'normal', Float32Attribute( vertexBuffer.slice(), 3 ) ); + this.addAttribute( 'uv', Float32Attribute( uvBuffer, 2 ) ); + this.normalizeNormals(); + + this.boundingSphere = new Sphere( new Vector3(), radius ); + + // helper functions + + function subdivide( detail ) { + + var a = new Vector3(); + var b = new Vector3(); + var c = new Vector3(); + + // iterate over all faces and apply a subdivison with the given detail value + + for ( var i = 0; i < indices.length; i += 3 ) { + + // get the vertices of the face + + getVertexByIndex( indices[ i + 0 ], a ); + getVertexByIndex( indices[ i + 1 ], b ); + getVertexByIndex( indices[ i + 2 ], c ); + + // perform subdivision + + subdivideFace( a, b, c, detail ); + + } + + } + + function subdivideFace( a, b, c, detail ) { + + var cols = Math.pow( 2, detail ); + + // we use this multidimensional array as a data structure for creating the subdivision + + var v = []; + + var i, j; + + // construct all of the vertices for this subdivision + + for ( i = 0 ; i <= cols; i ++ ) { + + v[ i ] = []; + + var aj = a.clone().lerp( c, i / cols ); + var bj = b.clone().lerp( c, i / cols ); + + var rows = cols - i; + + for ( j = 0; j <= rows; j ++ ) { + + if ( j === 0 && i === cols ) { + + v[ i ][ j ] = aj; + + } else { + + v[ i ][ j ] = aj.clone().lerp( bj, j / rows ); + + } + + } + + } + + // construct all of the faces + + for ( i = 0; i < cols ; i ++ ) { + + for ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) { + + var k = Math.floor( j / 2 ); + + if ( j % 2 === 0 ) { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + pushVertex( v[ i ][ k ] ); + + } else { + + pushVertex( v[ i ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k + 1 ] ); + pushVertex( v[ i + 1 ][ k ] ); + + } + + } + + } + + } + + function appplyRadius( radius ) { + + var vertex = new Vector3(); + + // iterate over the entire buffer and apply the radius to each vertex + + for ( var i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + vertex.normalize().multiplyScalar( radius ); + + vertexBuffer[ i + 0 ] = vertex.x; + vertexBuffer[ i + 1 ] = vertex.y; + vertexBuffer[ i + 2 ] = vertex.z; + + } + + } + + function generateUVs() { + + var vertex = new Vector3(); + + for ( var i = 0; i < vertexBuffer.length; i += 3 ) { + + vertex.x = vertexBuffer[ i + 0 ]; + vertex.y = vertexBuffer[ i + 1 ]; + vertex.z = vertexBuffer[ i + 2 ]; + + var u = azimuth( vertex ) / 2 / Math.PI + 0.5; + var v = inclination( vertex ) / Math.PI + 0.5; + uvBuffer.push( u, 1 - v ); + + } + + correctUVs(); + + correctSeam(); + + } + + function correctSeam() { + + // handle case when face straddles the seam, see #3269 + + for ( var i = 0; i < uvBuffer.length; i += 6 ) { + + // uv data of a single face + + var x0 = uvBuffer[ i + 0 ]; + var x1 = uvBuffer[ i + 2 ]; + var x2 = uvBuffer[ i + 4 ]; + + var max = Math.max( x0, x1, x2 ); + var min = Math.min( x0, x1, x2 ); + + // 0.9 is somewhat arbitrary + + if ( max > 0.9 && min < 0.1 ) { + + if ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1; + if ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1; + if ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1; + + } + + } + + } + + function pushVertex( vertex ) { + + vertexBuffer.push( vertex.x, vertex.y, vertex.z ); + + } + + function getVertexByIndex( index, vertex ) { + + var stride = index * 3; + + vertex.x = vertices[ stride + 0 ]; + vertex.y = vertices[ stride + 1 ]; + vertex.z = vertices[ stride + 2 ]; + + } + + function correctUVs() { + + var a = new Vector3(); + var b = new Vector3(); + var c = new Vector3(); + + var centroid = new Vector3(); + + var uvA = new Vector2(); + var uvB = new Vector2(); + var uvC = new Vector2(); + + for ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) { + + a.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] ); + b.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] ); + c.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] ); + + uvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] ); + uvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] ); + uvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] ); + + centroid.copy( a ).add( b ).add( c ).divideScalar( 3 ); + + var azi = azimuth( centroid ); + + correctUV( uvA, j + 0, a, azi ); + correctUV( uvB, j + 2, b, azi ); + correctUV( uvC, j + 4, c, azi ); + + } + + } + + function correctUV( uv, stride, vector, azimuth ) { + + if ( ( azimuth < 0 ) && ( uv.x === 1 ) ) { + + uvBuffer[ stride ] = uv.x - 1; + + } + + if ( ( vector.x === 0 ) && ( vector.z === 0 ) ) { + + uvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5; + + } + + } + + // Angle around the Y axis, counter-clockwise when looking from above. + + function azimuth( vector ) { + + return Math.atan2( vector.z, - vector.x ); + + } + + + // Angle above the XZ plane. + + function inclination( vector ) { + + return Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) ); + + } + + } + + PolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + PolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function TetrahedronBufferGeometry( radius, detail ) { + + var vertices = [ + 1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1 + ]; + + var indices = [ + 2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1 + ]; + + PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail ); + + this.type = 'TetrahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + TetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype ); + TetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry; + + /** + * @author timothypratley / https://github.com/timothypratley + */ + + function TetrahedronGeometry( radius, detail ) { + + Geometry.call( this ); + + this.type = 'TetrahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + + TetrahedronGeometry.prototype = Object.create( Geometry.prototype ); + TetrahedronGeometry.prototype.constructor = TetrahedronGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function OctahedronBufferGeometry( radius,detail ) { + + var vertices = [ + 1, 0, 0, - 1, 0, 0, 0, 1, 0, 0, - 1, 0, 0, 0, 1, 0, 0, - 1 + ]; + + var indices = [ + 0, 2, 4, 0, 4, 3, 0, 3, 5, 0, 5, 2, 1, 2, 5, 1, 5, 3, 1, 3, 4, 1, 4, 2 + ]; + + PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail ); + + this.type = 'OctahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + OctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype ); + OctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry; + + /** + * @author timothypratley / https://github.com/timothypratley + */ + + function OctahedronGeometry( radius, detail ) { + + Geometry.call( this ); + + this.type = 'OctahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + + OctahedronGeometry.prototype = Object.create( Geometry.prototype ); + OctahedronGeometry.prototype.constructor = OctahedronGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function IcosahedronBufferGeometry( radius, detail ) { + + var t = ( 1 + Math.sqrt( 5 ) ) / 2; + + var vertices = [ + - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, 0, + 0, - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, + t, 0, - 1, t, 0, 1, - t, 0, - 1, - t, 0, 1 + ]; + + var indices = [ + 0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11, + 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8, + 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9, + 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1 + ]; + + PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail ); + + this.type = 'IcosahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + IcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype ); + IcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry; + + /** + * @author timothypratley / https://github.com/timothypratley + */ + + function IcosahedronGeometry( radius, detail ) { + + Geometry.call( this ); + + this.type = 'IcosahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + + IcosahedronGeometry.prototype = Object.create( Geometry.prototype ); + IcosahedronGeometry.prototype.constructor = IcosahedronGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function DodecahedronBufferGeometry( radius, detail ) { + + var t = ( 1 + Math.sqrt( 5 ) ) / 2; + var r = 1 / t; + + var vertices = [ + + // (±1, ±1, ±1) + - 1, - 1, - 1, - 1, - 1, 1, + - 1, 1, - 1, - 1, 1, 1, + 1, - 1, - 1, 1, - 1, 1, + 1, 1, - 1, 1, 1, 1, + + // (0, ±1/φ, ±φ) + 0, - r, - t, 0, - r, t, + 0, r, - t, 0, r, t, + + // (±1/φ, ±φ, 0) + - r, - t, 0, - r, t, 0, + r, - t, 0, r, t, 0, + + // (±φ, 0, ±1/φ) + - t, 0, - r, t, 0, - r, + - t, 0, r, t, 0, r + ]; + + var indices = [ + 3, 11, 7, 3, 7, 15, 3, 15, 13, + 7, 19, 17, 7, 17, 6, 7, 6, 15, + 17, 4, 8, 17, 8, 10, 17, 10, 6, + 8, 0, 16, 8, 16, 2, 8, 2, 10, + 0, 12, 1, 0, 1, 18, 0, 18, 16, + 6, 10, 2, 6, 2, 13, 6, 13, 15, + 2, 16, 18, 2, 18, 3, 2, 3, 13, + 18, 1, 9, 18, 9, 11, 18, 11, 3, + 4, 14, 12, 4, 12, 0, 4, 0, 8, + 11, 9, 5, 11, 5, 19, 11, 19, 7, + 19, 5, 14, 19, 14, 4, 19, 4, 17, + 1, 12, 14, 1, 14, 5, 1, 5, 9 + ]; + + PolyhedronBufferGeometry.call( this, vertices, indices, radius, detail ); + + this.type = 'DodecahedronBufferGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + } + + DodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype ); + DodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry; + + /** + * @author Abe Pazos / https://hamoid.com + */ + + function DodecahedronGeometry( radius, detail ) { + + Geometry.call( this ); + + this.type = 'DodecahedronGeometry'; + + this.parameters = { + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) ); + this.mergeVertices(); + + } + + DodecahedronGeometry.prototype = Object.create( Geometry.prototype ); + DodecahedronGeometry.prototype.constructor = DodecahedronGeometry; + + /** + * @author clockworkgeek / https://github.com/clockworkgeek + * @author timothypratley / https://github.com/timothypratley + * @author WestLangley / http://github.com/WestLangley + */ + + function PolyhedronGeometry( vertices, indices, radius, detail ) { + + Geometry.call( this ); + + this.type = 'PolyhedronGeometry'; + + this.parameters = { + vertices: vertices, + indices: indices, + radius: radius, + detail: detail + }; + + this.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) ); + this.mergeVertices(); + + } + + PolyhedronGeometry.prototype = Object.create( Geometry.prototype ); + PolyhedronGeometry.prototype.constructor = PolyhedronGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + * + * Creates a tube which extrudes along a 3d spline. + * + */ + + function TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) { + + BufferGeometry.call( this ); + + this.type = 'TubeBufferGeometry'; + + this.parameters = { + path: path, + tubularSegments: tubularSegments, + radius: radius, + radialSegments: radialSegments, + closed: closed + }; + + tubularSegments = tubularSegments || 64; + radius = radius || 1; + radialSegments = radialSegments || 8; + closed = closed || false; + + var frames = path.computeFrenetFrames( tubularSegments, closed ); + + // expose internals + + this.tangents = frames.tangents; + this.normals = frames.normals; + this.binormals = frames.binormals; + + // helper variables + + var vertex = new Vector3(); + var normal = new Vector3(); + var uv = new Vector2(); + + var i, j; + + // buffer + + var vertices = []; + var normals = []; + var uvs = []; + var indices = []; + + // create buffer data + + generateBufferData(); + + // build geometry + + this.setIndex( ( indices.length > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) ); + this.addAttribute( 'position', Float32Attribute( vertices, 3 ) ); + this.addAttribute( 'normal', Float32Attribute( normals, 3 ) ); + this.addAttribute( 'uv', Float32Attribute( uvs, 2 ) ); + + // functions + + function generateBufferData() { + + for ( i = 0; i < tubularSegments; i ++ ) { + + generateSegment( i ); + + } + + // if the geometry is not closed, generate the last row of vertices and normals + // at the regular position on the given path + // + // if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ) + + generateSegment( ( closed === false ) ? tubularSegments : 0 ); + + // uvs are generated in a separate function. + // this makes it easy compute correct values for closed geometries + + generateUVs(); + + // finally create faces + + generateIndices(); + + } + + function generateSegment( i ) { + + // we use getPointAt to sample evenly distributed points from the given path + + var P = path.getPointAt( i / tubularSegments ); + + // retrieve corresponding normal and binormal + + var N = frames.normals[ i ]; + var B = frames.binormals[ i ]; + + // generate normals and vertices for the current segment + + for ( j = 0; j <= radialSegments; j ++ ) { + + var v = j / radialSegments * Math.PI * 2; + + var sin = Math.sin( v ); + var cos = - Math.cos( v ); + + // normal + + normal.x = ( cos * N.x + sin * B.x ); + normal.y = ( cos * N.y + sin * B.y ); + normal.z = ( cos * N.z + sin * B.z ); + normal.normalize(); + + normals.push( normal.x, normal.y, normal.z ); + + // vertex + + vertex.x = P.x + radius * normal.x; + vertex.y = P.y + radius * normal.y; + vertex.z = P.z + radius * normal.z; + + vertices.push( vertex.x, vertex.y, vertex.z ); + + } + + } + + function generateIndices() { + + for ( j = 1; j <= tubularSegments; j ++ ) { + + for ( i = 1; i <= radialSegments; i ++ ) { + + var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + var b = ( radialSegments + 1 ) * j + ( i - 1 ); + var c = ( radialSegments + 1 ) * j + i; + var d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // faces + + indices.push( a, b, d ); + indices.push( b, c, d ); + + } + + } + + } + + function generateUVs() { + + for ( i = 0; i <= tubularSegments; i ++ ) { + + for ( j = 0; j <= radialSegments; j ++ ) { + + uv.x = i / tubularSegments; + uv.y = j / radialSegments; + + uvs.push( uv.x, uv.y ); + + } + + } + + } + + } + + TubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + TubeBufferGeometry.prototype.constructor = TubeBufferGeometry; + + /** + * @author oosmoxiecode / https://github.com/oosmoxiecode + * @author WestLangley / https://github.com/WestLangley + * @author zz85 / https://github.com/zz85 + * @author miningold / https://github.com/miningold + * @author jonobr1 / https://github.com/jonobr1 + * + * Creates a tube which extrudes along a 3d spline. + */ + + function TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) { + + Geometry.call( this ); + + this.type = 'TubeGeometry'; + + this.parameters = { + path: path, + tubularSegments: tubularSegments, + radius: radius, + radialSegments: radialSegments, + closed: closed + }; + + if ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' ); + + var bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ); + + // expose internals + + this.tangents = bufferGeometry.tangents; + this.normals = bufferGeometry.normals; + this.binormals = bufferGeometry.binormals; + + // create geometry + + this.fromBufferGeometry( bufferGeometry ); + this.mergeVertices(); + + } + + TubeGeometry.prototype = Object.create( Geometry.prototype ); + TubeGeometry.prototype.constructor = TubeGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + * + * see: http://www.blackpawn.com/texts/pqtorus/ + */ + function TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) { + + BufferGeometry.call( this ); + + this.type = 'TorusKnotBufferGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + tubularSegments: tubularSegments, + radialSegments: radialSegments, + p: p, + q: q + }; + + radius = radius || 100; + tube = tube || 40; + tubularSegments = Math.floor( tubularSegments ) || 64; + radialSegments = Math.floor( radialSegments ) || 8; + p = p || 2; + q = q || 3; + + // used to calculate buffer length + var vertexCount = ( ( radialSegments + 1 ) * ( tubularSegments + 1 ) ); + var indexCount = radialSegments * tubularSegments * 2 * 3; + + // buffers + var indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 ); + var vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 ); + + // helper variables + var i, j, index = 0, indexOffset = 0; + + var vertex = new Vector3(); + var normal = new Vector3(); + var uv = new Vector2(); + + var P1 = new Vector3(); + var P2 = new Vector3(); + + var B = new Vector3(); + var T = new Vector3(); + var N = new Vector3(); + + // generate vertices, normals and uvs + + for ( i = 0; i <= tubularSegments; ++ i ) { + + // the radian "u" is used to calculate the position on the torus curve of the current tubular segement + + var u = i / tubularSegments * p * Math.PI * 2; + + // now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead. + // these points are used to create a special "coordinate space", which is necessary to calculate the correct vertex positions + + calculatePositionOnCurve( u, p, q, radius, P1 ); + calculatePositionOnCurve( u + 0.01, p, q, radius, P2 ); + + // calculate orthonormal basis + + T.subVectors( P2, P1 ); + N.addVectors( P2, P1 ); + B.crossVectors( T, N ); + N.crossVectors( B, T ); + + // normalize B, N. T can be ignored, we don't use it + + B.normalize(); + N.normalize(); + + for ( j = 0; j <= radialSegments; ++ j ) { + + // now calculate the vertices. they are nothing more than an extrusion of the torus curve. + // because we extrude a shape in the xy-plane, there is no need to calculate a z-value. + + var v = j / radialSegments * Math.PI * 2; + var cx = - tube * Math.cos( v ); + var cy = tube * Math.sin( v ); + + // now calculate the final vertex position. + // first we orient the extrusion with our basis vectos, then we add it to the current position on the curve + + vertex.x = P1.x + ( cx * N.x + cy * B.x ); + vertex.y = P1.y + ( cx * N.y + cy * B.y ); + vertex.z = P1.z + ( cx * N.z + cy * B.z ); + + // vertex + vertices.setXYZ( index, vertex.x, vertex.y, vertex.z ); + + // normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal) + normal.subVectors( vertex, P1 ).normalize(); + normals.setXYZ( index, normal.x, normal.y, normal.z ); + + // uv + uv.x = i / tubularSegments; + uv.y = j / radialSegments; + uvs.setXY( index, uv.x, uv.y ); + + // increase index + index ++; + + } + + } + + // generate indices + + for ( j = 1; j <= tubularSegments; j ++ ) { + + for ( i = 1; i <= radialSegments; i ++ ) { + + // indices + var a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 ); + var b = ( radialSegments + 1 ) * j + ( i - 1 ); + var c = ( radialSegments + 1 ) * j + i; + var d = ( radialSegments + 1 ) * ( j - 1 ) + i; + + // face one + indices.setX( indexOffset, a ); indexOffset++; + indices.setX( indexOffset, b ); indexOffset++; + indices.setX( indexOffset, d ); indexOffset++; + + // face two + indices.setX( indexOffset, b ); indexOffset++; + indices.setX( indexOffset, c ); indexOffset++; + indices.setX( indexOffset, d ); indexOffset++; + + } + + } + + // build geometry + + this.setIndex( indices ); + this.addAttribute( 'position', vertices ); + this.addAttribute( 'normal', normals ); + this.addAttribute( 'uv', uvs ); + + // this function calculates the current position on the torus curve + + function calculatePositionOnCurve( u, p, q, radius, position ) { + + var cu = Math.cos( u ); + var su = Math.sin( u ); + var quOverP = q / p * u; + var cs = Math.cos( quOverP ); + + position.x = radius * ( 2 + cs ) * 0.5 * cu; + position.y = radius * ( 2 + cs ) * su * 0.5; + position.z = radius * Math.sin( quOverP ) * 0.5; + + } + + } + + TorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + TorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry; + + /** + * @author oosmoxiecode + */ + + function TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) { + + Geometry.call( this ); + + this.type = 'TorusKnotGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + tubularSegments: tubularSegments, + radialSegments: radialSegments, + p: p, + q: q + }; + + if( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' ); + + this.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) ); + this.mergeVertices(); + + } + + TorusKnotGeometry.prototype = Object.create( Geometry.prototype ); + TorusKnotGeometry.prototype.constructor = TorusKnotGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) { + + BufferGeometry.call( this ); + + this.type = 'TorusBufferGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + radialSegments: radialSegments, + tubularSegments: tubularSegments, + arc: arc + }; + + radius = radius || 100; + tube = tube || 40; + radialSegments = Math.floor( radialSegments ) || 8; + tubularSegments = Math.floor( tubularSegments ) || 6; + arc = arc || Math.PI * 2; + + // used to calculate buffer length + var vertexCount = ( ( radialSegments + 1 ) * ( tubularSegments + 1 ) ); + var indexCount = radialSegments * tubularSegments * 2 * 3; + + // buffers + var indices = new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ); + var vertices = new Float32Array( vertexCount * 3 ); + var normals = new Float32Array( vertexCount * 3 ); + var uvs = new Float32Array( vertexCount * 2 ); + + // offset variables + var vertexBufferOffset = 0; + var uvBufferOffset = 0; + var indexBufferOffset = 0; + + // helper variables + var center = new Vector3(); + var vertex = new Vector3(); + var normal = new Vector3(); + + var j, i; + + // generate vertices, normals and uvs + + for ( j = 0; j <= radialSegments; j ++ ) { + + for ( i = 0; i <= tubularSegments; i ++ ) { + + var u = i / tubularSegments * arc; + var v = j / radialSegments * Math.PI * 2; + + // vertex + vertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u ); + vertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u ); + vertex.z = tube * Math.sin( v ); + + vertices[ vertexBufferOffset ] = vertex.x; + vertices[ vertexBufferOffset + 1 ] = vertex.y; + vertices[ vertexBufferOffset + 2 ] = vertex.z; + + // this vector is used to calculate the normal + center.x = radius * Math.cos( u ); + center.y = radius * Math.sin( u ); + + // normal + normal.subVectors( vertex, center ).normalize(); + + normals[ vertexBufferOffset ] = normal.x; + normals[ vertexBufferOffset + 1 ] = normal.y; + normals[ vertexBufferOffset + 2 ] = normal.z; + + // uv + uvs[ uvBufferOffset ] = i / tubularSegments; + uvs[ uvBufferOffset + 1 ] = j / radialSegments; + + // update offsets + vertexBufferOffset += 3; + uvBufferOffset += 2; + + } + + } + + // generate indices + + for ( j = 1; j <= radialSegments; j ++ ) { + + for ( i = 1; i <= tubularSegments; i ++ ) { + + // indices + var a = ( tubularSegments + 1 ) * j + i - 1; + var b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1; + var c = ( tubularSegments + 1 ) * ( j - 1 ) + i; + var d = ( tubularSegments + 1 ) * j + i; + + // face one + indices[ indexBufferOffset ] = a; + indices[ indexBufferOffset + 1 ] = b; + indices[ indexBufferOffset + 2 ] = d; + + // face two + indices[ indexBufferOffset + 3 ] = b; + indices[ indexBufferOffset + 4 ] = c; + indices[ indexBufferOffset + 5 ] = d; + + // update offset + indexBufferOffset += 6; + + } + + } + + // build geometry + this.setIndex( new BufferAttribute( indices, 1 ) ); + this.addAttribute( 'position', new BufferAttribute( vertices, 3 ) ); + this.addAttribute( 'normal', new BufferAttribute( normals, 3 ) ); + this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) ); + + } + + TorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + TorusBufferGeometry.prototype.constructor = TorusBufferGeometry; + + /** + * @author oosmoxiecode + * @author mrdoob / http://mrdoob.com/ + * based on http://code.google.com/p/away3d/source/browse/trunk/fp10/Away3DLite/src/away3dlite/primitives/Torus.as?r=2888 + */ + + function TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) { + + Geometry.call( this ); + + this.type = 'TorusGeometry'; + + this.parameters = { + radius: radius, + tube: tube, + radialSegments: radialSegments, + tubularSegments: tubularSegments, + arc: arc + }; + + this.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) ); + + } + + TorusGeometry.prototype = Object.create( Geometry.prototype ); + TorusGeometry.prototype.constructor = TorusGeometry; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + */ + + var ShapeUtils = { + + // calculate area of the contour polygon + + area: function ( contour ) { + + var n = contour.length; + var a = 0.0; + + for ( var p = n - 1, q = 0; q < n; p = q ++ ) { + + a += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y; + + } + + return a * 0.5; + + }, + + triangulate: ( function () { + + /** + * This code is a quick port of code written in C++ which was submitted to + * flipcode.com by John W. Ratcliff // July 22, 2000 + * See original code and more information here: + * http://www.flipcode.com/archives/Efficient_Polygon_Triangulation.shtml + * + * ported to actionscript by Zevan Rosser + * www.actionsnippet.com + * + * ported to javascript by Joshua Koo + * http://www.lab4games.net/zz85/blog + * + */ + + function snip( contour, u, v, w, n, verts ) { + + var p; + var ax, ay, bx, by; + var cx, cy, px, py; + + ax = contour[ verts[ u ] ].x; + ay = contour[ verts[ u ] ].y; + + bx = contour[ verts[ v ] ].x; + by = contour[ verts[ v ] ].y; + + cx = contour[ verts[ w ] ].x; + cy = contour[ verts[ w ] ].y; + + if ( ( bx - ax ) * ( cy - ay ) - ( by - ay ) * ( cx - ax ) <= 0 ) return false; + + var aX, aY, bX, bY, cX, cY; + var apx, apy, bpx, bpy, cpx, cpy; + var cCROSSap, bCROSScp, aCROSSbp; + + aX = cx - bx; aY = cy - by; + bX = ax - cx; bY = ay - cy; + cX = bx - ax; cY = by - ay; + + for ( p = 0; p < n; p ++ ) { + + px = contour[ verts[ p ] ].x; + py = contour[ verts[ p ] ].y; + + if ( ( ( px === ax ) && ( py === ay ) ) || + ( ( px === bx ) && ( py === by ) ) || + ( ( px === cx ) && ( py === cy ) ) ) continue; + + apx = px - ax; apy = py - ay; + bpx = px - bx; bpy = py - by; + cpx = px - cx; cpy = py - cy; + + // see if p is inside triangle abc + + aCROSSbp = aX * bpy - aY * bpx; + cCROSSap = cX * apy - cY * apx; + bCROSScp = bX * cpy - bY * cpx; + + if ( ( aCROSSbp >= - Number.EPSILON ) && ( bCROSScp >= - Number.EPSILON ) && ( cCROSSap >= - Number.EPSILON ) ) return false; + + } + + return true; + + } + + // takes in an contour array and returns + + return function triangulate( contour, indices ) { + + var n = contour.length; + + if ( n < 3 ) return null; + + var result = [], + verts = [], + vertIndices = []; + + /* we want a counter-clockwise polygon in verts */ + + var u, v, w; + + if ( ShapeUtils.area( contour ) > 0.0 ) { + + for ( v = 0; v < n; v ++ ) verts[ v ] = v; + + } else { + + for ( v = 0; v < n; v ++ ) verts[ v ] = ( n - 1 ) - v; + + } + + var nv = n; + + /* remove nv - 2 vertices, creating 1 triangle every time */ + + var count = 2 * nv; /* error detection */ + + for ( v = nv - 1; nv > 2; ) { + + /* if we loop, it is probably a non-simple polygon */ + + if ( ( count -- ) <= 0 ) { + + //** Triangulate: ERROR - probable bad polygon! + + //throw ( "Warning, unable to triangulate polygon!" ); + //return null; + // Sometimes warning is fine, especially polygons are triangulated in reverse. + console.warn( 'THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()' ); + + if ( indices ) return vertIndices; + return result; + + } + + /* three consecutive vertices in current polygon, */ + + u = v; if ( nv <= u ) u = 0; /* previous */ + v = u + 1; if ( nv <= v ) v = 0; /* new v */ + w = v + 1; if ( nv <= w ) w = 0; /* next */ + + if ( snip( contour, u, v, w, nv, verts ) ) { + + var a, b, c, s, t; + + /* true names of the vertices */ + + a = verts[ u ]; + b = verts[ v ]; + c = verts[ w ]; + + /* output Triangle */ + + result.push( [ contour[ a ], + contour[ b ], + contour[ c ] ] ); + + + vertIndices.push( [ verts[ u ], verts[ v ], verts[ w ] ] ); + + /* remove v from the remaining polygon */ + + for ( s = v, t = v + 1; t < nv; s ++, t ++ ) { + + verts[ s ] = verts[ t ]; + + } + + nv --; + + /* reset error detection counter */ + + count = 2 * nv; + + } + + } + + if ( indices ) return vertIndices; + return result; + + } + + } )(), + + triangulateShape: function ( contour, holes ) { + + function removeDupEndPts(points) { + + var l = points.length; + + if ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) { + + points.pop(); + + } + + } + + removeDupEndPts( contour ); + holes.forEach( removeDupEndPts ); + + function point_in_segment_2D_colin( inSegPt1, inSegPt2, inOtherPt ) { + + // inOtherPt needs to be collinear to the inSegment + if ( inSegPt1.x !== inSegPt2.x ) { + + if ( inSegPt1.x < inSegPt2.x ) { + + return ( ( inSegPt1.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt2.x ) ); + + } else { + + return ( ( inSegPt2.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt1.x ) ); + + } + + } else { + + if ( inSegPt1.y < inSegPt2.y ) { + + return ( ( inSegPt1.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt2.y ) ); + + } else { + + return ( ( inSegPt2.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt1.y ) ); + + } + + } + + } + + function intersect_segments_2D( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1, inSeg2Pt2, inExcludeAdjacentSegs ) { + + var seg1dx = inSeg1Pt2.x - inSeg1Pt1.x, seg1dy = inSeg1Pt2.y - inSeg1Pt1.y; + var seg2dx = inSeg2Pt2.x - inSeg2Pt1.x, seg2dy = inSeg2Pt2.y - inSeg2Pt1.y; + + var seg1seg2dx = inSeg1Pt1.x - inSeg2Pt1.x; + var seg1seg2dy = inSeg1Pt1.y - inSeg2Pt1.y; + + var limit = seg1dy * seg2dx - seg1dx * seg2dy; + var perpSeg1 = seg1dy * seg1seg2dx - seg1dx * seg1seg2dy; + + if ( Math.abs( limit ) > Number.EPSILON ) { + + // not parallel + + var perpSeg2; + if ( limit > 0 ) { + + if ( ( perpSeg1 < 0 ) || ( perpSeg1 > limit ) ) return []; + perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy; + if ( ( perpSeg2 < 0 ) || ( perpSeg2 > limit ) ) return []; + + } else { + + if ( ( perpSeg1 > 0 ) || ( perpSeg1 < limit ) ) return []; + perpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy; + if ( ( perpSeg2 > 0 ) || ( perpSeg2 < limit ) ) return []; + + } + + // i.e. to reduce rounding errors + // intersection at endpoint of segment#1? + if ( perpSeg2 === 0 ) { + + if ( ( inExcludeAdjacentSegs ) && + ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) ) return []; + return [ inSeg1Pt1 ]; + + } + if ( perpSeg2 === limit ) { + + if ( ( inExcludeAdjacentSegs ) && + ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) ) return []; + return [ inSeg1Pt2 ]; + + } + // intersection at endpoint of segment#2? + if ( perpSeg1 === 0 ) return [ inSeg2Pt1 ]; + if ( perpSeg1 === limit ) return [ inSeg2Pt2 ]; + + // return real intersection point + var factorSeg1 = perpSeg2 / limit; + return [ { x: inSeg1Pt1.x + factorSeg1 * seg1dx, + y: inSeg1Pt1.y + factorSeg1 * seg1dy } ]; + + } else { + + // parallel or collinear + if ( ( perpSeg1 !== 0 ) || + ( seg2dy * seg1seg2dx !== seg2dx * seg1seg2dy ) ) return []; + + // they are collinear or degenerate + var seg1Pt = ( ( seg1dx === 0 ) && ( seg1dy === 0 ) ); // segment1 is just a point? + var seg2Pt = ( ( seg2dx === 0 ) && ( seg2dy === 0 ) ); // segment2 is just a point? + // both segments are points + if ( seg1Pt && seg2Pt ) { + + if ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) || + ( inSeg1Pt1.y !== inSeg2Pt1.y ) ) return []; // they are distinct points + return [ inSeg1Pt1 ]; // they are the same point + + } + // segment#1 is a single point + if ( seg1Pt ) { + + if ( ! point_in_segment_2D_colin( inSeg2Pt1, inSeg2Pt2, inSeg1Pt1 ) ) return []; // but not in segment#2 + return [ inSeg1Pt1 ]; + + } + // segment#2 is a single point + if ( seg2Pt ) { + + if ( ! point_in_segment_2D_colin( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1 ) ) return []; // but not in segment#1 + return [ inSeg2Pt1 ]; + + } + + // they are collinear segments, which might overlap + var seg1min, seg1max, seg1minVal, seg1maxVal; + var seg2min, seg2max, seg2minVal, seg2maxVal; + if ( seg1dx !== 0 ) { + + // the segments are NOT on a vertical line + if ( inSeg1Pt1.x < inSeg1Pt2.x ) { + + seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.x; + seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.x; + + } else { + + seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.x; + seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.x; + + } + if ( inSeg2Pt1.x < inSeg2Pt2.x ) { + + seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.x; + seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.x; + + } else { + + seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.x; + seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.x; + + } + + } else { + + // the segments are on a vertical line + if ( inSeg1Pt1.y < inSeg1Pt2.y ) { + + seg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.y; + seg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.y; + + } else { + + seg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.y; + seg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.y; + + } + if ( inSeg2Pt1.y < inSeg2Pt2.y ) { + + seg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.y; + seg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.y; + + } else { + + seg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.y; + seg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.y; + + } + + } + if ( seg1minVal <= seg2minVal ) { + + if ( seg1maxVal < seg2minVal ) return []; + if ( seg1maxVal === seg2minVal ) { + + if ( inExcludeAdjacentSegs ) return []; + return [ seg2min ]; + + } + if ( seg1maxVal <= seg2maxVal ) return [ seg2min, seg1max ]; + return [ seg2min, seg2max ]; + + } else { + + if ( seg1minVal > seg2maxVal ) return []; + if ( seg1minVal === seg2maxVal ) { + + if ( inExcludeAdjacentSegs ) return []; + return [ seg1min ]; + + } + if ( seg1maxVal <= seg2maxVal ) return [ seg1min, seg1max ]; + return [ seg1min, seg2max ]; + + } + + } + + } + + function isPointInsideAngle( inVertex, inLegFromPt, inLegToPt, inOtherPt ) { + + // The order of legs is important + + // translation of all points, so that Vertex is at (0,0) + var legFromPtX = inLegFromPt.x - inVertex.x, legFromPtY = inLegFromPt.y - inVertex.y; + var legToPtX = inLegToPt.x - inVertex.x, legToPtY = inLegToPt.y - inVertex.y; + var otherPtX = inOtherPt.x - inVertex.x, otherPtY = inOtherPt.y - inVertex.y; + + // main angle >0: < 180 deg.; 0: 180 deg.; <0: > 180 deg. + var from2toAngle = legFromPtX * legToPtY - legFromPtY * legToPtX; + var from2otherAngle = legFromPtX * otherPtY - legFromPtY * otherPtX; + + if ( Math.abs( from2toAngle ) > Number.EPSILON ) { + + // angle != 180 deg. + + var other2toAngle = otherPtX * legToPtY - otherPtY * legToPtX; + // console.log( "from2to: " + from2toAngle + ", from2other: " + from2otherAngle + ", other2to: " + other2toAngle ); + + if ( from2toAngle > 0 ) { + + // main angle < 180 deg. + return ( ( from2otherAngle >= 0 ) && ( other2toAngle >= 0 ) ); + + } else { + + // main angle > 180 deg. + return ( ( from2otherAngle >= 0 ) || ( other2toAngle >= 0 ) ); + + } + + } else { + + // angle == 180 deg. + // console.log( "from2to: 180 deg., from2other: " + from2otherAngle ); + return ( from2otherAngle > 0 ); + + } + + } + + + function removeHoles( contour, holes ) { + + var shape = contour.concat(); // work on this shape + var hole; + + function isCutLineInsideAngles( inShapeIdx, inHoleIdx ) { + + // Check if hole point lies within angle around shape point + var lastShapeIdx = shape.length - 1; + + var prevShapeIdx = inShapeIdx - 1; + if ( prevShapeIdx < 0 ) prevShapeIdx = lastShapeIdx; + + var nextShapeIdx = inShapeIdx + 1; + if ( nextShapeIdx > lastShapeIdx ) nextShapeIdx = 0; + + var insideAngle = isPointInsideAngle( shape[ inShapeIdx ], shape[ prevShapeIdx ], shape[ nextShapeIdx ], hole[ inHoleIdx ] ); + if ( ! insideAngle ) { + + // console.log( "Vertex (Shape): " + inShapeIdx + ", Point: " + hole[inHoleIdx].x + "/" + hole[inHoleIdx].y ); + return false; + + } + + // Check if shape point lies within angle around hole point + var lastHoleIdx = hole.length - 1; + + var prevHoleIdx = inHoleIdx - 1; + if ( prevHoleIdx < 0 ) prevHoleIdx = lastHoleIdx; + + var nextHoleIdx = inHoleIdx + 1; + if ( nextHoleIdx > lastHoleIdx ) nextHoleIdx = 0; + + insideAngle = isPointInsideAngle( hole[ inHoleIdx ], hole[ prevHoleIdx ], hole[ nextHoleIdx ], shape[ inShapeIdx ] ); + if ( ! insideAngle ) { + + // console.log( "Vertex (Hole): " + inHoleIdx + ", Point: " + shape[inShapeIdx].x + "/" + shape[inShapeIdx].y ); + return false; + + } + + return true; + + } + + function intersectsShapeEdge( inShapePt, inHolePt ) { + + // checks for intersections with shape edges + var sIdx, nextIdx, intersection; + for ( sIdx = 0; sIdx < shape.length; sIdx ++ ) { + + nextIdx = sIdx + 1; nextIdx %= shape.length; + intersection = intersect_segments_2D( inShapePt, inHolePt, shape[ sIdx ], shape[ nextIdx ], true ); + if ( intersection.length > 0 ) return true; + + } + + return false; + + } + + var indepHoles = []; + + function intersectsHoleEdge( inShapePt, inHolePt ) { + + // checks for intersections with hole edges + var ihIdx, chkHole, + hIdx, nextIdx, intersection; + for ( ihIdx = 0; ihIdx < indepHoles.length; ihIdx ++ ) { + + chkHole = holes[ indepHoles[ ihIdx ]]; + for ( hIdx = 0; hIdx < chkHole.length; hIdx ++ ) { + + nextIdx = hIdx + 1; nextIdx %= chkHole.length; + intersection = intersect_segments_2D( inShapePt, inHolePt, chkHole[ hIdx ], chkHole[ nextIdx ], true ); + if ( intersection.length > 0 ) return true; + + } + + } + return false; + + } + + var holeIndex, shapeIndex, + shapePt, holePt, + holeIdx, cutKey, failedCuts = [], + tmpShape1, tmpShape2, + tmpHole1, tmpHole2; + + for ( var h = 0, hl = holes.length; h < hl; h ++ ) { + + indepHoles.push( h ); + + } + + var minShapeIndex = 0; + var counter = indepHoles.length * 2; + while ( indepHoles.length > 0 ) { + + counter --; + if ( counter < 0 ) { + + console.log( "Infinite Loop! Holes left:" + indepHoles.length + ", Probably Hole outside Shape!" ); + break; + + } + + // search for shape-vertex and hole-vertex, + // which can be connected without intersections + for ( shapeIndex = minShapeIndex; shapeIndex < shape.length; shapeIndex ++ ) { + + shapePt = shape[ shapeIndex ]; + holeIndex = - 1; + + // search for hole which can be reached without intersections + for ( var h = 0; h < indepHoles.length; h ++ ) { + + holeIdx = indepHoles[ h ]; + + // prevent multiple checks + cutKey = shapePt.x + ":" + shapePt.y + ":" + holeIdx; + if ( failedCuts[ cutKey ] !== undefined ) continue; + + hole = holes[ holeIdx ]; + for ( var h2 = 0; h2 < hole.length; h2 ++ ) { + + holePt = hole[ h2 ]; + if ( ! isCutLineInsideAngles( shapeIndex, h2 ) ) continue; + if ( intersectsShapeEdge( shapePt, holePt ) ) continue; + if ( intersectsHoleEdge( shapePt, holePt ) ) continue; + + holeIndex = h2; + indepHoles.splice( h, 1 ); + + tmpShape1 = shape.slice( 0, shapeIndex + 1 ); + tmpShape2 = shape.slice( shapeIndex ); + tmpHole1 = hole.slice( holeIndex ); + tmpHole2 = hole.slice( 0, holeIndex + 1 ); + + shape = tmpShape1.concat( tmpHole1 ).concat( tmpHole2 ).concat( tmpShape2 ); + + minShapeIndex = shapeIndex; + + // Debug only, to show the selected cuts + // glob_CutLines.push( [ shapePt, holePt ] ); + + break; + + } + if ( holeIndex >= 0 ) break; // hole-vertex found + + failedCuts[ cutKey ] = true; // remember failure + + } + if ( holeIndex >= 0 ) break; // hole-vertex found + + } + + } + + return shape; /* shape with no holes */ + + } + + + var i, il, f, face, + key, index, + allPointsMap = {}; + + // To maintain reference to old shape, one must match coordinates, or offset the indices from original arrays. It's probably easier to do the first. + + var allpoints = contour.concat(); + + for ( var h = 0, hl = holes.length; h < hl; h ++ ) { + + Array.prototype.push.apply( allpoints, holes[ h ] ); + + } + + //console.log( "allpoints",allpoints, allpoints.length ); + + // prepare all points map + + for ( i = 0, il = allpoints.length; i < il; i ++ ) { + + key = allpoints[ i ].x + ":" + allpoints[ i ].y; + + if ( allPointsMap[ key ] !== undefined ) { + + console.warn( "THREE.ShapeUtils: Duplicate point", key, i ); + + } + + allPointsMap[ key ] = i; + + } + + // remove holes by cutting paths to holes and adding them to the shape + var shapeWithoutHoles = removeHoles( contour, holes ); + + var triangles = ShapeUtils.triangulate( shapeWithoutHoles, false ); // True returns indices for points of spooled shape + //console.log( "triangles",triangles, triangles.length ); + + // check all face vertices against all points map + + for ( i = 0, il = triangles.length; i < il; i ++ ) { + + face = triangles[ i ]; + + for ( f = 0; f < 3; f ++ ) { + + key = face[ f ].x + ":" + face[ f ].y; + + index = allPointsMap[ key ]; + + if ( index !== undefined ) { + + face[ f ] = index; + + } + + } + + } + + return triangles.concat(); + + }, + + isClockWise: function ( pts ) { + + return ShapeUtils.area( pts ) < 0; + + }, + + // Bezier Curves formulas obtained from + // http://en.wikipedia.org/wiki/B%C3%A9zier_curve + + // Quad Bezier Functions + + b2: ( function () { + + function b2p0( t, p ) { + + var k = 1 - t; + return k * k * p; + + } + + function b2p1( t, p ) { + + return 2 * ( 1 - t ) * t * p; + + } + + function b2p2( t, p ) { + + return t * t * p; + + } + + return function b2( t, p0, p1, p2 ) { + + return b2p0( t, p0 ) + b2p1( t, p1 ) + b2p2( t, p2 ); + + }; + + } )(), + + // Cubic Bezier Functions + + b3: ( function () { + + function b3p0( t, p ) { + + var k = 1 - t; + return k * k * k * p; + + } + + function b3p1( t, p ) { + + var k = 1 - t; + return 3 * k * k * t * p; + + } + + function b3p2( t, p ) { + + var k = 1 - t; + return 3 * k * t * t * p; + + } + + function b3p3( t, p ) { + + return t * t * t * p; + + } + + return function b3( t, p0, p1, p2, p3 ) { + + return b3p0( t, p0 ) + b3p1( t, p1 ) + b3p2( t, p2 ) + b3p3( t, p3 ); + + }; + + } )() + + }; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * + * Creates extruded geometry from a path shape. + * + * parameters = { + * + * curveSegments: , // number of points on the curves + * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too + * amount: , // Depth to extrude the shape + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into the original shape bevel goes + * bevelSize: , // how far from shape outline is bevel + * bevelSegments: , // number of bevel layers + * + * extrudePath: // 3d spline path to extrude shape along. (creates Frames if .frames aren't defined) + * frames: // containing arrays of tangents, normals, binormals + * + * uvGenerator: // object that provides UV generator functions + * + * } + **/ + + function ExtrudeGeometry( shapes, options ) { + + if ( typeof( shapes ) === "undefined" ) { + + shapes = []; + return; + + } + + Geometry.call( this ); + + this.type = 'ExtrudeGeometry'; + + shapes = Array.isArray( shapes ) ? shapes : [ shapes ]; + + this.addShapeList( shapes, options ); + + this.computeFaceNormals(); + + // can't really use automatic vertex normals + // as then front and back sides get smoothed too + // should do separate smoothing just for sides + + //this.computeVertexNormals(); + + //console.log( "took", ( Date.now() - startTime ) ); + + } + + ExtrudeGeometry.prototype = Object.create( Geometry.prototype ); + ExtrudeGeometry.prototype.constructor = ExtrudeGeometry; + + ExtrudeGeometry.prototype.addShapeList = function ( shapes, options ) { + + var sl = shapes.length; + + for ( var s = 0; s < sl; s ++ ) { + + var shape = shapes[ s ]; + this.addShape( shape, options ); + + } + + }; + + ExtrudeGeometry.prototype.addShape = function ( shape, options ) { + + var amount = options.amount !== undefined ? options.amount : 100; + + var bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10 + var bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8 + var bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3; + + var bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false + + var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12; + + var steps = options.steps !== undefined ? options.steps : 1; + + var extrudePath = options.extrudePath; + var extrudePts, extrudeByPath = false; + + // Use default WorldUVGenerator if no UV generators are specified. + var uvgen = options.UVGenerator !== undefined ? options.UVGenerator : ExtrudeGeometry.WorldUVGenerator; + + var splineTube, binormal, normal, position2; + if ( extrudePath ) { + + extrudePts = extrudePath.getSpacedPoints( steps ); + + extrudeByPath = true; + bevelEnabled = false; // bevels not supported for path extrusion + + // SETUP TNB variables + + // TODO1 - have a .isClosed in spline? + + splineTube = options.frames !== undefined ? options.frames : extrudePath.computeFrenetFrames( steps, false ); + + // console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length); + + binormal = new Vector3(); + normal = new Vector3(); + position2 = new Vector3(); + + } + + // Safeguards if bevels are not enabled + + if ( ! bevelEnabled ) { + + bevelSegments = 0; + bevelThickness = 0; + bevelSize = 0; + + } + + // Variables initialization + + var ahole, h, hl; // looping of holes + var scope = this; + + var shapesOffset = this.vertices.length; + + var shapePoints = shape.extractPoints( curveSegments ); + + var vertices = shapePoints.shape; + var holes = shapePoints.holes; + + var reverse = ! ShapeUtils.isClockWise( vertices ); + + if ( reverse ) { + + vertices = vertices.reverse(); + + // Maybe we should also check if holes are in the opposite direction, just to be safe ... + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + + if ( ShapeUtils.isClockWise( ahole ) ) { + + holes[ h ] = ahole.reverse(); + + } + + } + + reverse = false; // If vertices are in order now, we shouldn't need to worry about them again (hopefully)! + + } + + + var faces = ShapeUtils.triangulateShape( vertices, holes ); + + /* Vertices */ + + var contour = vertices; // vertices has all points but contour has only points of circumference + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + + vertices = vertices.concat( ahole ); + + } + + + function scalePt2( pt, vec, size ) { + + if ( ! vec ) console.error( "THREE.ExtrudeGeometry: vec does not exist" ); + + return vec.clone().multiplyScalar( size ).add( pt ); + + } + + var b, bs, t, z, + vert, vlen = vertices.length, + face, flen = faces.length; + + + // Find directions for point movement + + + function getBevelVec( inPt, inPrev, inNext ) { + + // computes for inPt the corresponding point inPt' on a new contour + // shifted by 1 unit (length of normalized vector) to the left + // if we walk along contour clockwise, this new contour is outside the old one + // + // inPt' is the intersection of the two lines parallel to the two + // adjacent edges of inPt at a distance of 1 unit on the left side. + + var v_trans_x, v_trans_y, shrink_by = 1; // resulting translation vector for inPt + + // good reading for geometry algorithms (here: line-line intersection) + // http://geomalgorithms.com/a05-_intersect-1.html + + var v_prev_x = inPt.x - inPrev.x, v_prev_y = inPt.y - inPrev.y; + var v_next_x = inNext.x - inPt.x, v_next_y = inNext.y - inPt.y; + + var v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y ); + + // check for collinear edges + var collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + if ( Math.abs( collinear0 ) > Number.EPSILON ) { + + // not collinear + + // length of vectors for normalizing + + var v_prev_len = Math.sqrt( v_prev_lensq ); + var v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y ); + + // shift adjacent points by unit vectors to the left + + var ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len ); + var ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len ); + + var ptNextShift_x = ( inNext.x - v_next_y / v_next_len ); + var ptNextShift_y = ( inNext.y + v_next_x / v_next_len ); + + // scaling factor for v_prev to intersection point + + var sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y - + ( ptNextShift_y - ptPrevShift_y ) * v_next_x ) / + ( v_prev_x * v_next_y - v_prev_y * v_next_x ); + + // vector from inPt to intersection point + + v_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x ); + v_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y ); + + // Don't normalize!, otherwise sharp corners become ugly + // but prevent crazy spikes + var v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y ); + if ( v_trans_lensq <= 2 ) { + + return new Vector2( v_trans_x, v_trans_y ); + + } else { + + shrink_by = Math.sqrt( v_trans_lensq / 2 ); + + } + + } else { + + // handle special case of collinear edges + + var direction_eq = false; // assumes: opposite + if ( v_prev_x > Number.EPSILON ) { + + if ( v_next_x > Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( v_prev_x < - Number.EPSILON ) { + + if ( v_next_x < - Number.EPSILON ) { + + direction_eq = true; + + } + + } else { + + if ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) { + + direction_eq = true; + + } + + } + + } + + if ( direction_eq ) { + + // console.log("Warning: lines are a straight sequence"); + v_trans_x = - v_prev_y; + v_trans_y = v_prev_x; + shrink_by = Math.sqrt( v_prev_lensq ); + + } else { + + // console.log("Warning: lines are a straight spike"); + v_trans_x = v_prev_x; + v_trans_y = v_prev_y; + shrink_by = Math.sqrt( v_prev_lensq / 2 ); + + } + + } + + return new Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by ); + + } + + + var contourMovements = []; + + for ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + // console.log('i,j,k', i, j , k) + + contourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] ); + + } + + var holesMovements = [], oneHoleMovements, verticesMovements = contourMovements.concat(); + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + + oneHoleMovements = []; + + for ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) { + + if ( j === il ) j = 0; + if ( k === il ) k = 0; + + // (j)---(i)---(k) + oneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] ); + + } + + holesMovements.push( oneHoleMovements ); + verticesMovements = verticesMovements.concat( oneHoleMovements ); + + } + + + // Loop bevelSegments, 1 for the front, 1 for the back + + for ( b = 0; b < bevelSegments; b ++ ) { + + //for ( b = bevelSegments; b > 0; b -- ) { + + t = b / bevelSegments; + z = bevelThickness * Math.cos( t * Math.PI / 2 ); + bs = bevelSize * Math.sin( t * Math.PI / 2 ); + + // contract shape + + for ( i = 0, il = contour.length; i < il; i ++ ) { + + vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + // expand holes + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( i = 0, il = ahole.length; i < il; i ++ ) { + + vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + v( vert.x, vert.y, - z ); + + } + + } + + } + + bs = bevelSize; + + // Back facing vertices + + for ( i = 0; i < vlen; i ++ ) { + + vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, 0 ); + + } else { + + // v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x ); + + normal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + // Add stepped vertices... + // Including front facing vertices + + var s; + + for ( s = 1; s <= steps; s ++ ) { + + for ( i = 0; i < vlen; i ++ ) { + + vert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ]; + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, amount / steps * s ); + + } else { + + // v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x ); + + normal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x ); + binormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y ); + + position2.copy( extrudePts[ s ] ).add( normal ).add( binormal ); + + v( position2.x, position2.y, position2.z ); + + } + + } + + } + + + // Add bevel segments planes + + //for ( b = 1; b <= bevelSegments; b ++ ) { + for ( b = bevelSegments - 1; b >= 0; b -- ) { + + t = b / bevelSegments; + z = bevelThickness * Math.cos ( t * Math.PI / 2 ); + bs = bevelSize * Math.sin( t * Math.PI / 2 ); + + // contract shape + + for ( i = 0, il = contour.length; i < il; i ++ ) { + + vert = scalePt2( contour[ i ], contourMovements[ i ], bs ); + v( vert.x, vert.y, amount + z ); + + } + + // expand holes + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + oneHoleMovements = holesMovements[ h ]; + + for ( i = 0, il = ahole.length; i < il; i ++ ) { + + vert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs ); + + if ( ! extrudeByPath ) { + + v( vert.x, vert.y, amount + z ); + + } else { + + v( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z ); + + } + + } + + } + + } + + /* Faces */ + + // Top and bottom faces + + buildLidFaces(); + + // Sides faces + + buildSideFaces(); + + + ///// Internal functions + + function buildLidFaces() { + + if ( bevelEnabled ) { + + var layer = 0; // steps + 1 + var offset = vlen * layer; + + // Bottom faces + + for ( i = 0; i < flen; i ++ ) { + + face = faces[ i ]; + f3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset ); + + } + + layer = steps + bevelSegments * 2; + offset = vlen * layer; + + // Top faces + + for ( i = 0; i < flen; i ++ ) { + + face = faces[ i ]; + f3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset ); + + } + + } else { + + // Bottom faces + + for ( i = 0; i < flen; i ++ ) { + + face = faces[ i ]; + f3( face[ 2 ], face[ 1 ], face[ 0 ] ); + + } + + // Top faces + + for ( i = 0; i < flen; i ++ ) { + + face = faces[ i ]; + f3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps ); + + } + + } + + } + + // Create faces for the z-sides of the shape + + function buildSideFaces() { + + var layeroffset = 0; + sidewalls( contour, layeroffset ); + layeroffset += contour.length; + + for ( h = 0, hl = holes.length; h < hl; h ++ ) { + + ahole = holes[ h ]; + sidewalls( ahole, layeroffset ); + + //, true + layeroffset += ahole.length; + + } + + } + + function sidewalls( contour, layeroffset ) { + + var j, k; + i = contour.length; + + while ( -- i >= 0 ) { + + j = i; + k = i - 1; + if ( k < 0 ) k = contour.length - 1; + + //console.log('b', i,j, i-1, k,vertices.length); + + var s = 0, sl = steps + bevelSegments * 2; + + for ( s = 0; s < sl; s ++ ) { + + var slen1 = vlen * s; + var slen2 = vlen * ( s + 1 ); + + var a = layeroffset + j + slen1, + b = layeroffset + k + slen1, + c = layeroffset + k + slen2, + d = layeroffset + j + slen2; + + f4( a, b, c, d, contour, s, sl, j, k ); + + } + + } + + } + + + function v( x, y, z ) { + + scope.vertices.push( new Vector3( x, y, z ) ); + + } + + function f3( a, b, c ) { + + a += shapesOffset; + b += shapesOffset; + c += shapesOffset; + + scope.faces.push( new Face3( a, b, c, null, null, 0 ) ); + + var uvs = uvgen.generateTopUV( scope, a, b, c ); + + scope.faceVertexUvs[ 0 ].push( uvs ); + + } + + function f4( a, b, c, d, wallContour, stepIndex, stepsLength, contourIndex1, contourIndex2 ) { + + a += shapesOffset; + b += shapesOffset; + c += shapesOffset; + d += shapesOffset; + + scope.faces.push( new Face3( a, b, d, null, null, 1 ) ); + scope.faces.push( new Face3( b, c, d, null, null, 1 ) ); + + var uvs = uvgen.generateSideWallUV( scope, a, b, c, d ); + + scope.faceVertexUvs[ 0 ].push( [ uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] ] ); + scope.faceVertexUvs[ 0 ].push( [ uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] ] ); + + } + + }; + + ExtrudeGeometry.WorldUVGenerator = { + + generateTopUV: function ( geometry, indexA, indexB, indexC ) { + + var vertices = geometry.vertices; + + var a = vertices[ indexA ]; + var b = vertices[ indexB ]; + var c = vertices[ indexC ]; + + return [ + new Vector2( a.x, a.y ), + new Vector2( b.x, b.y ), + new Vector2( c.x, c.y ) + ]; + + }, + + generateSideWallUV: function ( geometry, indexA, indexB, indexC, indexD ) { + + var vertices = geometry.vertices; + + var a = vertices[ indexA ]; + var b = vertices[ indexB ]; + var c = vertices[ indexC ]; + var d = vertices[ indexD ]; + + if ( Math.abs( a.y - b.y ) < 0.01 ) { + + return [ + new Vector2( a.x, 1 - a.z ), + new Vector2( b.x, 1 - b.z ), + new Vector2( c.x, 1 - c.z ), + new Vector2( d.x, 1 - d.z ) + ]; + + } else { + + return [ + new Vector2( a.y, 1 - a.z ), + new Vector2( b.y, 1 - b.z ), + new Vector2( c.y, 1 - c.z ), + new Vector2( d.y, 1 - d.z ) + ]; + + } + + } + }; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * @author alteredq / http://alteredqualia.com/ + * + * Text = 3D Text + * + * parameters = { + * font: , // font + * + * size: , // size of the text + * height: , // thickness to extrude text + * curveSegments: , // number of points on the curves + * + * bevelEnabled: , // turn on bevel + * bevelThickness: , // how deep into text bevel goes + * bevelSize: // how far from text outline is bevel + * } + */ + + function TextGeometry( text, parameters ) { + + parameters = parameters || {}; + + var font = parameters.font; + + if ( (font && font.isFont) === false ) { + + console.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' ); + return new Geometry(); + + } + + var shapes = font.generateShapes( text, parameters.size, parameters.curveSegments ); + + // translate parameters to ExtrudeGeometry API + + parameters.amount = parameters.height !== undefined ? parameters.height : 50; + + // defaults + + if ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10; + if ( parameters.bevelSize === undefined ) parameters.bevelSize = 8; + if ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false; + + ExtrudeGeometry.call( this, shapes, parameters ); + + this.type = 'TextGeometry'; + + } + + TextGeometry.prototype = Object.create( ExtrudeGeometry.prototype ); + TextGeometry.prototype.constructor = TextGeometry; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + * based on THREE.SphereGeometry + */ + + function SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) { + + BufferGeometry.call( this ); + + this.type = 'SphereBufferGeometry'; + + this.parameters = { + radius: radius, + widthSegments: widthSegments, + heightSegments: heightSegments, + phiStart: phiStart, + phiLength: phiLength, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + radius = radius || 50; + + widthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 ); + heightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 ); + + phiStart = phiStart !== undefined ? phiStart : 0; + phiLength = phiLength !== undefined ? phiLength : Math.PI * 2; + + thetaStart = thetaStart !== undefined ? thetaStart : 0; + thetaLength = thetaLength !== undefined ? thetaLength : Math.PI; + + var thetaEnd = thetaStart + thetaLength; + + var vertexCount = ( ( widthSegments + 1 ) * ( heightSegments + 1 ) ); + + var positions = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 ); + + var index = 0, vertices = [], normal = new Vector3(); + + for ( var y = 0; y <= heightSegments; y ++ ) { + + var verticesRow = []; + + var v = y / heightSegments; + + for ( var x = 0; x <= widthSegments; x ++ ) { + + var u = x / widthSegments; + + var px = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + var py = radius * Math.cos( thetaStart + v * thetaLength ); + var pz = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength ); + + normal.set( px, py, pz ).normalize(); + + positions.setXYZ( index, px, py, pz ); + normals.setXYZ( index, normal.x, normal.y, normal.z ); + uvs.setXY( index, u, 1 - v ); + + verticesRow.push( index ); + + index ++; + + } + + vertices.push( verticesRow ); + + } + + var indices = []; + + for ( var y = 0; y < heightSegments; y ++ ) { + + for ( var x = 0; x < widthSegments; x ++ ) { + + var v1 = vertices[ y ][ x + 1 ]; + var v2 = vertices[ y ][ x ]; + var v3 = vertices[ y + 1 ][ x ]; + var v4 = vertices[ y + 1 ][ x + 1 ]; + + if ( y !== 0 || thetaStart > 0 ) indices.push( v1, v2, v4 ); + if ( y !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( v2, v3, v4 ); + + } + + } + + this.setIndex( new ( positions.count > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) ); + this.addAttribute( 'position', positions ); + this.addAttribute( 'normal', normals ); + this.addAttribute( 'uv', uvs ); + + this.boundingSphere = new Sphere( new Vector3(), radius ); + + } + + SphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + SphereBufferGeometry.prototype.constructor = SphereBufferGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) { + + Geometry.call( this ); + + this.type = 'SphereGeometry'; + + this.parameters = { + radius: radius, + widthSegments: widthSegments, + heightSegments: heightSegments, + phiStart: phiStart, + phiLength: phiLength, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) ); + + } + + SphereGeometry.prototype = Object.create( Geometry.prototype ); + SphereGeometry.prototype.constructor = SphereGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) { + + BufferGeometry.call( this ); + + this.type = 'RingBufferGeometry'; + + this.parameters = { + innerRadius: innerRadius, + outerRadius: outerRadius, + thetaSegments: thetaSegments, + phiSegments: phiSegments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + innerRadius = innerRadius || 20; + outerRadius = outerRadius || 50; + + thetaStart = thetaStart !== undefined ? thetaStart : 0; + thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2; + + thetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8; + phiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1; + + // these are used to calculate buffer length + var vertexCount = ( thetaSegments + 1 ) * ( phiSegments + 1 ); + var indexCount = thetaSegments * phiSegments * 2 * 3; + + // buffers + var indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 ); + var vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 ); + + // some helper variables + var index = 0, indexOffset = 0, segment; + var radius = innerRadius; + var radiusStep = ( ( outerRadius - innerRadius ) / phiSegments ); + var vertex = new Vector3(); + var uv = new Vector2(); + var j, i; + + // generate vertices, normals and uvs + + // values are generate from the inside of the ring to the outside + + for ( j = 0; j <= phiSegments; j ++ ) { + + for ( i = 0; i <= thetaSegments; i ++ ) { + + segment = thetaStart + i / thetaSegments * thetaLength; + + // vertex + vertex.x = radius * Math.cos( segment ); + vertex.y = radius * Math.sin( segment ); + vertices.setXYZ( index, vertex.x, vertex.y, vertex.z ); + + // normal + normals.setXYZ( index, 0, 0, 1 ); + + // uv + uv.x = ( vertex.x / outerRadius + 1 ) / 2; + uv.y = ( vertex.y / outerRadius + 1 ) / 2; + uvs.setXY( index, uv.x, uv.y ); + + // increase index + index++; + + } + + // increase the radius for next row of vertices + radius += radiusStep; + + } + + // generate indices + + for ( j = 0; j < phiSegments; j ++ ) { + + var thetaSegmentLevel = j * ( thetaSegments + 1 ); + + for ( i = 0; i < thetaSegments; i ++ ) { + + segment = i + thetaSegmentLevel; + + // indices + var a = segment; + var b = segment + thetaSegments + 1; + var c = segment + thetaSegments + 2; + var d = segment + 1; + + // face one + indices.setX( indexOffset, a ); indexOffset++; + indices.setX( indexOffset, b ); indexOffset++; + indices.setX( indexOffset, c ); indexOffset++; + + // face two + indices.setX( indexOffset, a ); indexOffset++; + indices.setX( indexOffset, c ); indexOffset++; + indices.setX( indexOffset, d ); indexOffset++; + + } + + } + + // build geometry + + this.setIndex( indices ); + this.addAttribute( 'position', vertices ); + this.addAttribute( 'normal', normals ); + this.addAttribute( 'uv', uvs ); + + } + + RingBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + RingBufferGeometry.prototype.constructor = RingBufferGeometry; + + /** + * @author Kaleb Murphy + */ + + function RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) { + + Geometry.call( this ); + + this.type = 'RingGeometry'; + + this.parameters = { + innerRadius: innerRadius, + outerRadius: outerRadius, + thetaSegments: thetaSegments, + phiSegments: phiSegments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) ); + + } + + RingGeometry.prototype = Object.create( Geometry.prototype ); + RingGeometry.prototype.constructor = RingGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as + */ + + function PlaneGeometry( width, height, widthSegments, heightSegments ) { + + Geometry.call( this ); + + this.type = 'PlaneGeometry'; + + this.parameters = { + width: width, + height: height, + widthSegments: widthSegments, + heightSegments: heightSegments + }; + + this.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) ); + + } + + PlaneGeometry.prototype = Object.create( Geometry.prototype ); + PlaneGeometry.prototype.constructor = PlaneGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + // points - to create a closed torus, one must use a set of points + // like so: [ a, b, c, d, a ], see first is the same as last. + // segments - the number of circumference segments to create + // phiStart - the starting radian + // phiLength - the radian (0 to 2PI) range of the lathed section + // 2PI is a closed lathe, less than 2PI is a portion. + + function LatheBufferGeometry( points, segments, phiStart, phiLength ) { + + BufferGeometry.call( this ); + + this.type = 'LatheBufferGeometry'; + + this.parameters = { + points: points, + segments: segments, + phiStart: phiStart, + phiLength: phiLength + }; + + segments = Math.floor( segments ) || 12; + phiStart = phiStart || 0; + phiLength = phiLength || Math.PI * 2; + + // clamp phiLength so it's in range of [ 0, 2PI ] + phiLength = _Math.clamp( phiLength, 0, Math.PI * 2 ); + + // these are used to calculate buffer length + var vertexCount = ( segments + 1 ) * points.length; + var indexCount = segments * points.length * 2 * 3; + + // buffers + var indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 ); + var vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 ); + + // helper variables + var index = 0, indexOffset = 0, base; + var inverseSegments = 1.0 / segments; + var vertex = new Vector3(); + var uv = new Vector2(); + var i, j; + + // generate vertices and uvs + + for ( i = 0; i <= segments; i ++ ) { + + var phi = phiStart + i * inverseSegments * phiLength; + + var sin = Math.sin( phi ); + var cos = Math.cos( phi ); + + for ( j = 0; j <= ( points.length - 1 ); j ++ ) { + + // vertex + vertex.x = points[ j ].x * sin; + vertex.y = points[ j ].y; + vertex.z = points[ j ].x * cos; + vertices.setXYZ( index, vertex.x, vertex.y, vertex.z ); + + // uv + uv.x = i / segments; + uv.y = j / ( points.length - 1 ); + uvs.setXY( index, uv.x, uv.y ); + + // increase index + index ++; + + } + + } + + // generate indices + + for ( i = 0; i < segments; i ++ ) { + + for ( j = 0; j < ( points.length - 1 ); j ++ ) { + + base = j + i * points.length; + + // indices + var a = base; + var b = base + points.length; + var c = base + points.length + 1; + var d = base + 1; + + // face one + indices.setX( indexOffset, a ); indexOffset++; + indices.setX( indexOffset, b ); indexOffset++; + indices.setX( indexOffset, d ); indexOffset++; + + // face two + indices.setX( indexOffset, b ); indexOffset++; + indices.setX( indexOffset, c ); indexOffset++; + indices.setX( indexOffset, d ); indexOffset++; + + } + + } + + // build geometry + + this.setIndex( indices ); + this.addAttribute( 'position', vertices ); + this.addAttribute( 'uv', uvs ); + + // generate normals + + this.computeVertexNormals(); + + // if the geometry is closed, we need to average the normals along the seam. + // because the corresponding vertices are identical (but still have different UVs). + + if( phiLength === Math.PI * 2 ) { + + var normals = this.attributes.normal.array; + var n1 = new Vector3(); + var n2 = new Vector3(); + var n = new Vector3(); + + // this is the buffer offset for the last line of vertices + base = segments * points.length * 3; + + for( i = 0, j = 0; i < points.length; i ++, j += 3 ) { + + // select the normal of the vertex in the first line + n1.x = normals[ j + 0 ]; + n1.y = normals[ j + 1 ]; + n1.z = normals[ j + 2 ]; + + // select the normal of the vertex in the last line + n2.x = normals[ base + j + 0 ]; + n2.y = normals[ base + j + 1 ]; + n2.z = normals[ base + j + 2 ]; + + // average normals + n.addVectors( n1, n2 ).normalize(); + + // assign the new values to both normals + normals[ j + 0 ] = normals[ base + j + 0 ] = n.x; + normals[ j + 1 ] = normals[ base + j + 1 ] = n.y; + normals[ j + 2 ] = normals[ base + j + 2 ] = n.z; + + } // next row + + } + + } + + LatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + LatheBufferGeometry.prototype.constructor = LatheBufferGeometry; + + /** + * @author astrodud / http://astrodud.isgreat.org/ + * @author zz85 / https://github.com/zz85 + * @author bhouston / http://clara.io + */ + + // points - to create a closed torus, one must use a set of points + // like so: [ a, b, c, d, a ], see first is the same as last. + // segments - the number of circumference segments to create + // phiStart - the starting radian + // phiLength - the radian (0 to 2PI) range of the lathed section + // 2PI is a closed lathe, less than 2PI is a portion. + + function LatheGeometry( points, segments, phiStart, phiLength ) { + + Geometry.call( this ); + + this.type = 'LatheGeometry'; + + this.parameters = { + points: points, + segments: segments, + phiStart: phiStart, + phiLength: phiLength + }; + + this.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) ); + this.mergeVertices(); + + } + + LatheGeometry.prototype = Object.create( Geometry.prototype ); + LatheGeometry.prototype.constructor = LatheGeometry; + + /** + * @author jonobr1 / http://jonobr1.com + * + * Creates a one-sided polygonal geometry from a path shape. Similar to + * ExtrudeGeometry. + * + * parameters = { + * + * curveSegments: , // number of points on the curves. NOT USED AT THE MOMENT. + * + * material: // material index for front and back faces + * uvGenerator: // object that provides UV generator functions + * + * } + **/ + + function ShapeGeometry( shapes, options ) { + + Geometry.call( this ); + + this.type = 'ShapeGeometry'; + + if ( Array.isArray( shapes ) === false ) shapes = [ shapes ]; + + this.addShapeList( shapes, options ); + + this.computeFaceNormals(); + + } + + ShapeGeometry.prototype = Object.create( Geometry.prototype ); + ShapeGeometry.prototype.constructor = ShapeGeometry; + + /** + * Add an array of shapes to THREE.ShapeGeometry. + */ + ShapeGeometry.prototype.addShapeList = function ( shapes, options ) { + + for ( var i = 0, l = shapes.length; i < l; i ++ ) { + + this.addShape( shapes[ i ], options ); + + } + + return this; + + }; + + /** + * Adds a shape to THREE.ShapeGeometry, based on THREE.ExtrudeGeometry. + */ + ShapeGeometry.prototype.addShape = function ( shape, options ) { + + if ( options === undefined ) options = {}; + var curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12; + + var material = options.material; + var uvgen = options.UVGenerator === undefined ? ExtrudeGeometry.WorldUVGenerator : options.UVGenerator; + + // + + var i, l, hole; + + var shapesOffset = this.vertices.length; + var shapePoints = shape.extractPoints( curveSegments ); + + var vertices = shapePoints.shape; + var holes = shapePoints.holes; + + var reverse = ! ShapeUtils.isClockWise( vertices ); + + if ( reverse ) { + + vertices = vertices.reverse(); + + // Maybe we should also check if holes are in the opposite direction, just to be safe... + + for ( i = 0, l = holes.length; i < l; i ++ ) { + + hole = holes[ i ]; + + if ( ShapeUtils.isClockWise( hole ) ) { + + holes[ i ] = hole.reverse(); + + } + + } + + reverse = false; + + } + + var faces = ShapeUtils.triangulateShape( vertices, holes ); + + // Vertices + + for ( i = 0, l = holes.length; i < l; i ++ ) { + + hole = holes[ i ]; + vertices = vertices.concat( hole ); + + } + + // + + var vert, vlen = vertices.length; + var face, flen = faces.length; + + for ( i = 0; i < vlen; i ++ ) { + + vert = vertices[ i ]; + + this.vertices.push( new Vector3( vert.x, vert.y, 0 ) ); + + } + + for ( i = 0; i < flen; i ++ ) { + + face = faces[ i ]; + + var a = face[ 0 ] + shapesOffset; + var b = face[ 1 ] + shapesOffset; + var c = face[ 2 ] + shapesOffset; + + this.faces.push( new Face3( a, b, c, null, null, material ) ); + this.faceVertexUvs[ 0 ].push( uvgen.generateTopUV( this, a, b, c ) ); + + } + + }; + + /** + * @author WestLangley / http://github.com/WestLangley + */ + + function EdgesGeometry( geometry, thresholdAngle ) { + + BufferGeometry.call( this ); + + thresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1; + + var thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle ); + + var edge = [ 0, 0 ], hash = {}; + + function sortFunction( a, b ) { + + return a - b; + + } + + var keys = [ 'a', 'b', 'c' ]; + + var geometry2; + + if ( (geometry && geometry.isBufferGeometry) ) { + + geometry2 = new Geometry(); + geometry2.fromBufferGeometry( geometry ); + + } else { + + geometry2 = geometry.clone(); + + } + + geometry2.mergeVertices(); + geometry2.computeFaceNormals(); + + var vertices = geometry2.vertices; + var faces = geometry2.faces; + + for ( var i = 0, l = faces.length; i < l; i ++ ) { + + var face = faces[ i ]; + + for ( var j = 0; j < 3; j ++ ) { + + edge[ 0 ] = face[ keys[ j ] ]; + edge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ]; + edge.sort( sortFunction ); + + var key = edge.toString(); + + if ( hash[ key ] === undefined ) { + + hash[ key ] = { vert1: edge[ 0 ], vert2: edge[ 1 ], face1: i, face2: undefined }; + + } else { + + hash[ key ].face2 = i; + + } + + } + + } + + var coords = []; + + for ( var key in hash ) { + + var h = hash[ key ]; + + if ( h.face2 === undefined || faces[ h.face1 ].normal.dot( faces[ h.face2 ].normal ) <= thresholdDot ) { + + var vertex = vertices[ h.vert1 ]; + coords.push( vertex.x ); + coords.push( vertex.y ); + coords.push( vertex.z ); + + vertex = vertices[ h.vert2 ]; + coords.push( vertex.x ); + coords.push( vertex.y ); + coords.push( vertex.z ); + + } + + } + + this.addAttribute( 'position', new BufferAttribute( new Float32Array( coords ), 3 ) ); + + } + + EdgesGeometry.prototype = Object.create( BufferGeometry.prototype ); + EdgesGeometry.prototype.constructor = EdgesGeometry; + + /** + * @author Mugen87 / https://github.com/Mugen87 + */ + + function CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + BufferGeometry.call( this ); + + this.type = 'CylinderBufferGeometry'; + + this.parameters = { + radiusTop: radiusTop, + radiusBottom: radiusBottom, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + var scope = this; + + radiusTop = radiusTop !== undefined ? radiusTop : 20; + radiusBottom = radiusBottom !== undefined ? radiusBottom : 20; + height = height !== undefined ? height : 100; + + radialSegments = Math.floor( radialSegments ) || 8; + heightSegments = Math.floor( heightSegments ) || 1; + + openEnded = openEnded !== undefined ? openEnded : false; + thetaStart = thetaStart !== undefined ? thetaStart : 0.0; + thetaLength = thetaLength !== undefined ? thetaLength : 2.0 * Math.PI; + + // used to calculate buffer length + + var nbCap = 0; + + if ( openEnded === false ) { + + if ( radiusTop > 0 ) nbCap ++; + if ( radiusBottom > 0 ) nbCap ++; + + } + + var vertexCount = calculateVertexCount(); + var indexCount = calculateIndexCount(); + + // buffers + + var indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ), 1 ); + var vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 ); + var uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 ); + + // helper variables + + var index = 0, + indexOffset = 0, + indexArray = [], + halfHeight = height / 2; + + // group variables + var groupStart = 0; + + // generate geometry + + generateTorso(); + + if ( openEnded === false ) { + + if ( radiusTop > 0 ) generateCap( true ); + if ( radiusBottom > 0 ) generateCap( false ); + + } + + // build geometry + + this.setIndex( indices ); + this.addAttribute( 'position', vertices ); + this.addAttribute( 'normal', normals ); + this.addAttribute( 'uv', uvs ); + + // helper functions + + function calculateVertexCount() { + + var count = ( radialSegments + 1 ) * ( heightSegments + 1 ); + + if ( openEnded === false ) { + + count += ( ( radialSegments + 1 ) * nbCap ) + ( radialSegments * nbCap ); + + } + + return count; + + } + + function calculateIndexCount() { + + var count = radialSegments * heightSegments * 2 * 3; + + if ( openEnded === false ) { + + count += radialSegments * nbCap * 3; + + } + + return count; + + } + + function generateTorso() { + + var x, y; + var normal = new Vector3(); + var vertex = new Vector3(); + + var groupCount = 0; + + // this will be used to calculate the normal + var slope = ( radiusBottom - radiusTop ) / height; + + // generate vertices, normals and uvs + + for ( y = 0; y <= heightSegments; y ++ ) { + + var indexRow = []; + + var v = y / heightSegments; + + // calculate the radius of the current row + var radius = v * ( radiusBottom - radiusTop ) + radiusTop; + + for ( x = 0; x <= radialSegments; x ++ ) { + + var u = x / radialSegments; + + var theta = u * thetaLength + thetaStart; + + var sinTheta = Math.sin( theta ); + var cosTheta = Math.cos( theta ); + + // vertex + vertex.x = radius * sinTheta; + vertex.y = - v * height + halfHeight; + vertex.z = radius * cosTheta; + vertices.setXYZ( index, vertex.x, vertex.y, vertex.z ); + + // normal + normal.set( sinTheta, slope, cosTheta ).normalize(); + normals.setXYZ( index, normal.x, normal.y, normal.z ); + + // uv + uvs.setXY( index, u, 1 - v ); + + // save index of vertex in respective row + indexRow.push( index ); + + // increase index + index ++; + + } + + // now save vertices of the row in our index array + indexArray.push( indexRow ); + + } + + // generate indices + + for ( x = 0; x < radialSegments; x ++ ) { + + for ( y = 0; y < heightSegments; y ++ ) { + + // we use the index array to access the correct indices + var i1 = indexArray[ y ][ x ]; + var i2 = indexArray[ y + 1 ][ x ]; + var i3 = indexArray[ y + 1 ][ x + 1 ]; + var i4 = indexArray[ y ][ x + 1 ]; + + // face one + indices.setX( indexOffset, i1 ); indexOffset ++; + indices.setX( indexOffset, i2 ); indexOffset ++; + indices.setX( indexOffset, i4 ); indexOffset ++; + + // face two + indices.setX( indexOffset, i2 ); indexOffset ++; + indices.setX( indexOffset, i3 ); indexOffset ++; + indices.setX( indexOffset, i4 ); indexOffset ++; + + // update counters + groupCount += 6; + + } + + } + + // add a group to the geometry. this will ensure multi material support + scope.addGroup( groupStart, groupCount, 0 ); + + // calculate new start value for groups + groupStart += groupCount; + + } + + function generateCap( top ) { + + var x, centerIndexStart, centerIndexEnd; + + var uv = new Vector2(); + var vertex = new Vector3(); + + var groupCount = 0; + + var radius = ( top === true ) ? radiusTop : radiusBottom; + var sign = ( top === true ) ? 1 : - 1; + + // save the index of the first center vertex + centerIndexStart = index; + + // first we generate the center vertex data of the cap. + // because the geometry needs one set of uvs per face, + // we must generate a center vertex per face/segment + + for ( x = 1; x <= radialSegments; x ++ ) { + + // vertex + vertices.setXYZ( index, 0, halfHeight * sign, 0 ); + + // normal + normals.setXYZ( index, 0, sign, 0 ); + + // uv + uv.x = 0.5; + uv.y = 0.5; + + uvs.setXY( index, uv.x, uv.y ); + + // increase index + index ++; + + } + + // save the index of the last center vertex + centerIndexEnd = index; + + // now we generate the surrounding vertices, normals and uvs + + for ( x = 0; x <= radialSegments; x ++ ) { + + var u = x / radialSegments; + var theta = u * thetaLength + thetaStart; + + var cosTheta = Math.cos( theta ); + var sinTheta = Math.sin( theta ); + + // vertex + vertex.x = radius * sinTheta; + vertex.y = halfHeight * sign; + vertex.z = radius * cosTheta; + vertices.setXYZ( index, vertex.x, vertex.y, vertex.z ); + + // normal + normals.setXYZ( index, 0, sign, 0 ); + + // uv + uv.x = ( cosTheta * 0.5 ) + 0.5; + uv.y = ( sinTheta * 0.5 * sign ) + 0.5; + uvs.setXY( index, uv.x, uv.y ); + + // increase index + index ++; + + } + + // generate indices + + for ( x = 0; x < radialSegments; x ++ ) { + + var c = centerIndexStart + x; + var i = centerIndexEnd + x; + + if ( top === true ) { + + // face top + indices.setX( indexOffset, i ); indexOffset ++; + indices.setX( indexOffset, i + 1 ); indexOffset ++; + indices.setX( indexOffset, c ); indexOffset ++; + + } else { + + // face bottom + indices.setX( indexOffset, i + 1 ); indexOffset ++; + indices.setX( indexOffset, i ); indexOffset ++; + indices.setX( indexOffset, c ); indexOffset ++; + + } + + // update counters + groupCount += 3; + + } + + // add a group to the geometry. this will ensure multi material support + scope.addGroup( groupStart, groupCount, top === true ? 1 : 2 ); + + // calculate new start value for groups + groupStart += groupCount; + + } + + } + + CylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + CylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + Geometry.call( this ); + + this.type = 'CylinderGeometry'; + + this.parameters = { + radiusTop: radiusTop, + radiusBottom: radiusBottom, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) ); + this.mergeVertices(); + + } + + CylinderGeometry.prototype = Object.create( Geometry.prototype ); + CylinderGeometry.prototype.constructor = CylinderGeometry; + + /** + * @author abelnation / http://github.com/abelnation + */ + + function ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + CylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ); + + this.type = 'ConeGeometry'; + + this.parameters = { + radius: radius, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + } + + ConeGeometry.prototype = Object.create( CylinderGeometry.prototype ); + ConeGeometry.prototype.constructor = ConeGeometry; + + /** + * @author: abelnation / http://github.com/abelnation + */ + + function ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) { + + CylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ); + + this.type = 'ConeBufferGeometry'; + + this.parameters = { + radius: radius, + height: height, + radialSegments: radialSegments, + heightSegments: heightSegments, + openEnded: openEnded, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + } + + ConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype ); + ConeBufferGeometry.prototype.constructor = ConeBufferGeometry; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) { + + BufferGeometry.call( this ); + + this.type = 'CircleBufferGeometry'; + + this.parameters = { + radius: radius, + segments: segments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + radius = radius || 50; + segments = segments !== undefined ? Math.max( 3, segments ) : 8; + + thetaStart = thetaStart !== undefined ? thetaStart : 0; + thetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2; + + var vertices = segments + 2; + + var positions = new Float32Array( vertices * 3 ); + var normals = new Float32Array( vertices * 3 ); + var uvs = new Float32Array( vertices * 2 ); + + // center data is already zero, but need to set a few extras + normals[ 2 ] = 1.0; + uvs[ 0 ] = 0.5; + uvs[ 1 ] = 0.5; + + for ( var s = 0, i = 3, ii = 2 ; s <= segments; s ++, i += 3, ii += 2 ) { + + var segment = thetaStart + s / segments * thetaLength; + + positions[ i ] = radius * Math.cos( segment ); + positions[ i + 1 ] = radius * Math.sin( segment ); + + normals[ i + 2 ] = 1; // normal z + + uvs[ ii ] = ( positions[ i ] / radius + 1 ) / 2; + uvs[ ii + 1 ] = ( positions[ i + 1 ] / radius + 1 ) / 2; + + } + + var indices = []; + + for ( var i = 1; i <= segments; i ++ ) { + + indices.push( i, i + 1, 0 ); + + } + + this.setIndex( new BufferAttribute( new Uint16Array( indices ), 1 ) ); + this.addAttribute( 'position', new BufferAttribute( positions, 3 ) ); + this.addAttribute( 'normal', new BufferAttribute( normals, 3 ) ); + this.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) ); + + this.boundingSphere = new Sphere( new Vector3(), radius ); + + } + + CircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + CircleBufferGeometry.prototype.constructor = CircleBufferGeometry; + + /** + * @author hughes + */ + + function CircleGeometry( radius, segments, thetaStart, thetaLength ) { + + Geometry.call( this ); + + this.type = 'CircleGeometry'; + + this.parameters = { + radius: radius, + segments: segments, + thetaStart: thetaStart, + thetaLength: thetaLength + }; + + this.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) ); + + } + + CircleGeometry.prototype = Object.create( Geometry.prototype ); + CircleGeometry.prototype.constructor = CircleGeometry; + + /** + * @author mrdoob / http://mrdoob.com/ + * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Cube.as + */ + + function BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) { + + Geometry.call( this ); + + this.type = 'BoxGeometry'; + + this.parameters = { + width: width, + height: height, + depth: depth, + widthSegments: widthSegments, + heightSegments: heightSegments, + depthSegments: depthSegments + }; + + this.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) ); + this.mergeVertices(); + + } + + BoxGeometry.prototype = Object.create( Geometry.prototype ); + BoxGeometry.prototype.constructor = BoxGeometry; + + + + var Geometries = Object.freeze({ + WireframeGeometry: WireframeGeometry, + ParametricGeometry: ParametricGeometry, + ParametricBufferGeometry: ParametricBufferGeometry, + TetrahedronGeometry: TetrahedronGeometry, + TetrahedronBufferGeometry: TetrahedronBufferGeometry, + OctahedronGeometry: OctahedronGeometry, + OctahedronBufferGeometry: OctahedronBufferGeometry, + IcosahedronGeometry: IcosahedronGeometry, + IcosahedronBufferGeometry: IcosahedronBufferGeometry, + DodecahedronGeometry: DodecahedronGeometry, + DodecahedronBufferGeometry: DodecahedronBufferGeometry, + PolyhedronGeometry: PolyhedronGeometry, + PolyhedronBufferGeometry: PolyhedronBufferGeometry, + TubeGeometry: TubeGeometry, + TubeBufferGeometry: TubeBufferGeometry, + TorusKnotGeometry: TorusKnotGeometry, + TorusKnotBufferGeometry: TorusKnotBufferGeometry, + TorusGeometry: TorusGeometry, + TorusBufferGeometry: TorusBufferGeometry, + TextGeometry: TextGeometry, + SphereBufferGeometry: SphereBufferGeometry, + SphereGeometry: SphereGeometry, + RingGeometry: RingGeometry, + RingBufferGeometry: RingBufferGeometry, + PlaneBufferGeometry: PlaneBufferGeometry, + PlaneGeometry: PlaneGeometry, + LatheGeometry: LatheGeometry, + LatheBufferGeometry: LatheBufferGeometry, + ShapeGeometry: ShapeGeometry, + ExtrudeGeometry: ExtrudeGeometry, + EdgesGeometry: EdgesGeometry, + ConeGeometry: ConeGeometry, + ConeBufferGeometry: ConeBufferGeometry, + CylinderGeometry: CylinderGeometry, + CylinderBufferGeometry: CylinderBufferGeometry, + CircleBufferGeometry: CircleBufferGeometry, + CircleGeometry: CircleGeometry, + BoxBufferGeometry: BoxBufferGeometry, + BoxGeometry: BoxGeometry + }); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function ShadowMaterial() { + + ShaderMaterial.call( this, { + uniforms: UniformsUtils.merge( [ + UniformsLib[ "lights" ], + { + opacity: { value: 1.0 } + } + ] ), + vertexShader: ShaderChunk[ 'shadow_vert' ], + fragmentShader: ShaderChunk[ 'shadow_frag' ] + } ); + + this.lights = true; + this.transparent = true; + + Object.defineProperties( this, { + opacity: { + enumerable: true, + get: function () { + return this.uniforms.opacity.value; + }, + set: function ( value ) { + this.uniforms.opacity.value = value; + } + } + } ); + + } + + ShadowMaterial.prototype = Object.create( ShaderMaterial.prototype ); + ShadowMaterial.prototype.constructor = ShadowMaterial; + + ShadowMaterial.prototype.isShadowMaterial = true; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function RawShaderMaterial( parameters ) { + + ShaderMaterial.call( this, parameters ); + + this.type = 'RawShaderMaterial'; + + } + + RawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype ); + RawShaderMaterial.prototype.constructor = RawShaderMaterial; + + RawShaderMaterial.prototype.isRawShaderMaterial = true; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function MultiMaterial( materials ) { + + this.uuid = _Math.generateUUID(); + + this.type = 'MultiMaterial'; + + this.materials = materials instanceof Array ? materials : []; + + this.visible = true; + + } + + MultiMaterial.prototype = { + + constructor: MultiMaterial, + + isMultiMaterial: true, + + toJSON: function ( meta ) { + + var output = { + metadata: { + version: 4.2, + type: 'material', + generator: 'MaterialExporter' + }, + uuid: this.uuid, + type: this.type, + materials: [] + }; + + var materials = this.materials; + + for ( var i = 0, l = materials.length; i < l; i ++ ) { + + var material = materials[ i ].toJSON( meta ); + delete material.metadata; + + output.materials.push( material ); + + } + + output.visible = this.visible; + + return output; + + }, + + clone: function () { + + var material = new this.constructor(); + + for ( var i = 0; i < this.materials.length; i ++ ) { + + material.materials.push( this.materials[ i ].clone() ); + + } + + material.visible = this.visible; + + return material; + + } + + }; + + /** + * @author WestLangley / http://github.com/WestLangley + * + * parameters = { + * color: , + * roughness: , + * metalness: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * roughnessMap: new THREE.Texture( ), + * + * metalnessMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ), + * envMapIntensity: + * + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + + function MeshStandardMaterial( parameters ) { + + Material.call( this ); + + this.defines = { 'STANDARD': '' }; + + this.type = 'MeshStandardMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.roughness = 0.5; + this.metalness = 0.5; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.roughnessMap = null; + + this.metalnessMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.envMapIntensity = 1.0; + + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + + } + + MeshStandardMaterial.prototype = Object.create( Material.prototype ); + MeshStandardMaterial.prototype.constructor = MeshStandardMaterial; + + MeshStandardMaterial.prototype.isMeshStandardMaterial = true; + + MeshStandardMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.defines = { 'STANDARD': '' }; + + this.color.copy( source.color ); + this.roughness = source.roughness; + this.metalness = source.metalness; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.roughnessMap = source.roughnessMap; + + this.metalnessMap = source.metalnessMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.envMapIntensity = source.envMapIntensity; + + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + + }; + + /** + * @author WestLangley / http://github.com/WestLangley + * + * parameters = { + * reflectivity: + * } + */ + + function MeshPhysicalMaterial( parameters ) { + + MeshStandardMaterial.call( this ); + + this.defines = { 'PHYSICAL': '' }; + + this.type = 'MeshPhysicalMaterial'; + + this.reflectivity = 0.5; // maps to F0 = 0.04 + + this.clearCoat = 0.0; + this.clearCoatRoughness = 0.0; + + this.setValues( parameters ); + + } + + MeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype ); + MeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial; + + MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true; + + MeshPhysicalMaterial.prototype.copy = function ( source ) { + + MeshStandardMaterial.prototype.copy.call( this, source ); + + this.defines = { 'PHYSICAL': '' }; + + this.reflectivity = source.reflectivity; + + this.clearCoat = source.clearCoat; + this.clearCoatRoughness = source.clearCoatRoughness; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * specular: , + * shininess: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * bumpMap: new THREE.Texture( ), + * bumpScale: , + * + * normalMap: new THREE.Texture( ), + * normalScale: , + * + * displacementMap: new THREE.Texture( ), + * displacementScale: , + * displacementBias: , + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + + function MeshPhongMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshPhongMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + this.specular = new Color( 0x111111 ); + this.shininess = 30; + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.bumpMap = null; + this.bumpScale = 1; + + this.normalMap = null; + this.normalScale = new Vector2( 1, 1 ); + + this.displacementMap = null; + this.displacementScale = 1; + this.displacementBias = 0; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + + } + + MeshPhongMaterial.prototype = Object.create( Material.prototype ); + MeshPhongMaterial.prototype.constructor = MeshPhongMaterial; + + MeshPhongMaterial.prototype.isMeshPhongMaterial = true; + + MeshPhongMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + this.specular.copy( source.specular ); + this.shininess = source.shininess; + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.bumpMap = source.bumpMap; + this.bumpScale = source.bumpScale; + + this.normalMap = source.normalMap; + this.normalScale.copy( source.normalScale ); + + this.displacementMap = source.displacementMap; + this.displacementScale = source.displacementScale; + this.displacementBias = source.displacementBias; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * + * parameters = { + * opacity: , + * + * wireframe: , + * wireframeLinewidth: + * } + */ + + function MeshNormalMaterial( parameters ) { + + Material.call( this, parameters ); + + this.type = 'MeshNormalMaterial'; + + this.wireframe = false; + this.wireframeLinewidth = 1; + + this.fog = false; + this.lights = false; + this.morphTargets = false; + + this.setValues( parameters ); + + } + + MeshNormalMaterial.prototype = Object.create( Material.prototype ); + MeshNormalMaterial.prototype.constructor = MeshNormalMaterial; + + MeshNormalMaterial.prototype.isMeshNormalMaterial = true; + + MeshNormalMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * + * map: new THREE.Texture( ), + * + * lightMap: new THREE.Texture( ), + * lightMapIntensity: + * + * aoMap: new THREE.Texture( ), + * aoMapIntensity: + * + * emissive: , + * emissiveIntensity: + * emissiveMap: new THREE.Texture( ), + * + * specularMap: new THREE.Texture( ), + * + * alphaMap: new THREE.Texture( ), + * + * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ), + * combine: THREE.Multiply, + * reflectivity: , + * refractionRatio: , + * + * wireframe: , + * wireframeLinewidth: , + * + * skinning: , + * morphTargets: , + * morphNormals: + * } + */ + + function MeshLambertMaterial( parameters ) { + + Material.call( this ); + + this.type = 'MeshLambertMaterial'; + + this.color = new Color( 0xffffff ); // diffuse + + this.map = null; + + this.lightMap = null; + this.lightMapIntensity = 1.0; + + this.aoMap = null; + this.aoMapIntensity = 1.0; + + this.emissive = new Color( 0x000000 ); + this.emissiveIntensity = 1.0; + this.emissiveMap = null; + + this.specularMap = null; + + this.alphaMap = null; + + this.envMap = null; + this.combine = MultiplyOperation; + this.reflectivity = 1; + this.refractionRatio = 0.98; + + this.wireframe = false; + this.wireframeLinewidth = 1; + this.wireframeLinecap = 'round'; + this.wireframeLinejoin = 'round'; + + this.skinning = false; + this.morphTargets = false; + this.morphNormals = false; + + this.setValues( parameters ); + + } + + MeshLambertMaterial.prototype = Object.create( Material.prototype ); + MeshLambertMaterial.prototype.constructor = MeshLambertMaterial; + + MeshLambertMaterial.prototype.isMeshLambertMaterial = true; + + MeshLambertMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.map = source.map; + + this.lightMap = source.lightMap; + this.lightMapIntensity = source.lightMapIntensity; + + this.aoMap = source.aoMap; + this.aoMapIntensity = source.aoMapIntensity; + + this.emissive.copy( source.emissive ); + this.emissiveMap = source.emissiveMap; + this.emissiveIntensity = source.emissiveIntensity; + + this.specularMap = source.specularMap; + + this.alphaMap = source.alphaMap; + + this.envMap = source.envMap; + this.combine = source.combine; + this.reflectivity = source.reflectivity; + this.refractionRatio = source.refractionRatio; + + this.wireframe = source.wireframe; + this.wireframeLinewidth = source.wireframeLinewidth; + this.wireframeLinecap = source.wireframeLinecap; + this.wireframeLinejoin = source.wireframeLinejoin; + + this.skinning = source.skinning; + this.morphTargets = source.morphTargets; + this.morphNormals = source.morphNormals; + + return this; + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * + * parameters = { + * color: , + * opacity: , + * + * linewidth: , + * + * scale: , + * dashSize: , + * gapSize: + * } + */ + + function LineDashedMaterial( parameters ) { + + Material.call( this ); + + this.type = 'LineDashedMaterial'; + + this.color = new Color( 0xffffff ); + + this.linewidth = 1; + + this.scale = 1; + this.dashSize = 3; + this.gapSize = 1; + + this.lights = false; + + this.setValues( parameters ); + + } + + LineDashedMaterial.prototype = Object.create( Material.prototype ); + LineDashedMaterial.prototype.constructor = LineDashedMaterial; + + LineDashedMaterial.prototype.isLineDashedMaterial = true; + + LineDashedMaterial.prototype.copy = function ( source ) { + + Material.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + + this.linewidth = source.linewidth; + + this.scale = source.scale; + this.dashSize = source.dashSize; + this.gapSize = source.gapSize; + + return this; + + }; + + + + var Materials = Object.freeze({ + ShadowMaterial: ShadowMaterial, + SpriteMaterial: SpriteMaterial, + RawShaderMaterial: RawShaderMaterial, + ShaderMaterial: ShaderMaterial, + PointsMaterial: PointsMaterial, + MultiMaterial: MultiMaterial, + MeshPhysicalMaterial: MeshPhysicalMaterial, + MeshStandardMaterial: MeshStandardMaterial, + MeshPhongMaterial: MeshPhongMaterial, + MeshNormalMaterial: MeshNormalMaterial, + MeshLambertMaterial: MeshLambertMaterial, + MeshDepthMaterial: MeshDepthMaterial, + MeshBasicMaterial: MeshBasicMaterial, + LineDashedMaterial: LineDashedMaterial, + LineBasicMaterial: LineBasicMaterial, + Material: Material + }); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + var Cache = { + + enabled: false, + + files: {}, + + add: function ( key, file ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Adding key:', key ); + + this.files[ key ] = file; + + }, + + get: function ( key ) { + + if ( this.enabled === false ) return; + + // console.log( 'THREE.Cache', 'Checking key:', key ); + + return this.files[ key ]; + + }, + + remove: function ( key ) { + + delete this.files[ key ]; + + }, + + clear: function () { + + this.files = {}; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function LoadingManager( onLoad, onProgress, onError ) { + + var scope = this; + + var isLoading = false, itemsLoaded = 0, itemsTotal = 0; + + this.onStart = undefined; + this.onLoad = onLoad; + this.onProgress = onProgress; + this.onError = onError; + + this.itemStart = function ( url ) { + + itemsTotal ++; + + if ( isLoading === false ) { + + if ( scope.onStart !== undefined ) { + + scope.onStart( url, itemsLoaded, itemsTotal ); + + } + + } + + isLoading = true; + + }; + + this.itemEnd = function ( url ) { + + itemsLoaded ++; + + if ( scope.onProgress !== undefined ) { + + scope.onProgress( url, itemsLoaded, itemsTotal ); + + } + + if ( itemsLoaded === itemsTotal ) { + + isLoading = false; + + if ( scope.onLoad !== undefined ) { + + scope.onLoad(); + + } + + } + + }; + + this.itemError = function ( url ) { + + if ( scope.onError !== undefined ) { + + scope.onError( url ); + + } + + }; + + } + + var DefaultLoadingManager = new LoadingManager(); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function XHRLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( XHRLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + if ( url === undefined ) url = ''; + + if ( this.path !== undefined ) url = this.path + url; + + var scope = this; + + var cached = Cache.get( url ); + + if ( cached !== undefined ) { + + scope.manager.itemStart( url ); + + setTimeout( function () { + + if ( onLoad ) onLoad( cached ); + + scope.manager.itemEnd( url ); + + }, 0 ); + + return cached; + + } + + // Check for data: URI + var dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/; + var dataUriRegexResult = url.match( dataUriRegex ); + + // Safari can not handle Data URIs through XMLHttpRequest so process manually + if ( dataUriRegexResult ) { + + var mimeType = dataUriRegexResult[1]; + var isBase64 = !!dataUriRegexResult[2]; + var data = dataUriRegexResult[3]; + + data = window.decodeURIComponent(data); + + if( isBase64 ) { + data = window.atob(data); + } + + try { + + var response; + var responseType = ( this.responseType || '' ).toLowerCase(); + + switch ( responseType ) { + + case 'arraybuffer': + case 'blob': + + response = new ArrayBuffer( data.length ); + var view = new Uint8Array( response ); + for ( var i = 0; i < data.length; i ++ ) { + + view[ i ] = data.charCodeAt( i ); + + } + + if ( responseType === 'blob' ) { + + response = new Blob( [ response ], { "type" : mimeType } ); + + } + + break; + + case 'document': + + var parser = new DOMParser(); + response = parser.parseFromString( data, mimeType ); + + break; + + case 'json': + + response = JSON.parse( data ); + + break; + + default: // 'text' or other + + response = data; + + break; + + } + + // Wait for next browser tick + window.setTimeout( function() { + + if ( onLoad ) onLoad( response ); + + scope.manager.itemEnd( url ); + + }, 0); + + } catch ( error ) { + + // Wait for next browser tick + window.setTimeout( function() { + + if ( onError ) onError( error ); + + scope.manager.itemError( url ); + + }, 0); + + } + + } else { + + var request = new XMLHttpRequest(); + request.open( 'GET', url, true ); + + request.addEventListener( 'load', function ( event ) { + + var response = event.target.response; + + Cache.add( url, response ); + + if ( this.status === 200 ) { + + if ( onLoad ) onLoad( response ); + + scope.manager.itemEnd( url ); + + } else if ( this.status === 0 ) { + + // Some browsers return HTTP Status 0 when using non-http protocol + // e.g. 'file://' or 'data://'. Handle as success. + + console.warn( 'THREE.XHRLoader: HTTP Status 0 received.' ); + + if ( onLoad ) onLoad( response ); + + scope.manager.itemEnd( url ); + + } else { + + if ( onError ) onError( event ); + + scope.manager.itemError( url ); + + } + + }, false ); + + if ( onProgress !== undefined ) { + + request.addEventListener( 'progress', function ( event ) { + + onProgress( event ); + + }, false ); + + } + + request.addEventListener( 'error', function ( event ) { + + if ( onError ) onError( event ); + + scope.manager.itemError( url ); + + }, false ); + + if ( this.responseType !== undefined ) request.responseType = this.responseType; + if ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials; + + if ( request.overrideMimeType ) request.overrideMimeType( 'text/plain' ); + + request.send( null ); + + } + + scope.manager.itemStart( url ); + + return request; + + }, + + setPath: function ( value ) { + + this.path = value; + return this; + + }, + + setResponseType: function ( value ) { + + this.responseType = value; + return this; + + }, + + setWithCredentials: function ( value ) { + + this.withCredentials = value; + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * + * Abstract Base class to block based textures loader (dds, pvr, ...) + */ + + function CompressedTextureLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + // override in sub classes + this._parser = null; + + } + + Object.assign( CompressedTextureLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var images = []; + + var texture = new CompressedTexture(); + texture.image = images; + + var loader = new XHRLoader( this.manager ); + loader.setPath( this.path ); + loader.setResponseType( 'arraybuffer' ); + + function loadTexture( i ) { + + loader.load( url[ i ], function ( buffer ) { + + var texDatas = scope._parser( buffer, true ); + + images[ i ] = { + width: texDatas.width, + height: texDatas.height, + format: texDatas.format, + mipmaps: texDatas.mipmaps + }; + + loaded += 1; + + if ( loaded === 6 ) { + + if ( texDatas.mipmapCount === 1 ) + texture.minFilter = LinearFilter; + + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, onProgress, onError ); + + } + + if ( Array.isArray( url ) ) { + + var loaded = 0; + + for ( var i = 0, il = url.length; i < il; ++ i ) { + + loadTexture( i ); + + } + + } else { + + // compressed cubemap texture stored in a single DDS file + + loader.load( url, function ( buffer ) { + + var texDatas = scope._parser( buffer, true ); + + if ( texDatas.isCubemap ) { + + var faces = texDatas.mipmaps.length / texDatas.mipmapCount; + + for ( var f = 0; f < faces; f ++ ) { + + images[ f ] = { mipmaps : [] }; + + for ( var i = 0; i < texDatas.mipmapCount; i ++ ) { + + images[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] ); + images[ f ].format = texDatas.format; + images[ f ].width = texDatas.width; + images[ f ].height = texDatas.height; + + } + + } + + } else { + + texture.image.width = texDatas.width; + texture.image.height = texDatas.height; + texture.mipmaps = texDatas.mipmaps; + + } + + if ( texDatas.mipmapCount === 1 ) { + + texture.minFilter = LinearFilter; + + } + + texture.format = texDatas.format; + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + }, onProgress, onError ); + + } + + return texture; + + }, + + setPath: function ( value ) { + + this.path = value; + return this; + + } + + } ); + + /** + * @author Nikos M. / https://github.com/foo123/ + * + * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...) + */ + + var DataTextureLoader = BinaryTextureLoader; + function BinaryTextureLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + // override in sub classes + this._parser = null; + + } + + Object.assign( BinaryTextureLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var texture = new DataTexture(); + + var loader = new XHRLoader( this.manager ); + loader.setResponseType( 'arraybuffer' ); + + loader.load( url, function ( buffer ) { + + var texData = scope._parser( buffer ); + + if ( ! texData ) return; + + if ( undefined !== texData.image ) { + + texture.image = texData.image; + + } else if ( undefined !== texData.data ) { + + texture.image.width = texData.width; + texture.image.height = texData.height; + texture.image.data = texData.data; + + } + + texture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping; + texture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping; + + texture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter; + texture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter; + + texture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1; + + if ( undefined !== texData.format ) { + + texture.format = texData.format; + + } + if ( undefined !== texData.type ) { + + texture.type = texData.type; + + } + + if ( undefined !== texData.mipmaps ) { + + texture.mipmaps = texData.mipmaps; + + } + + if ( 1 === texData.mipmapCount ) { + + texture.minFilter = LinearFilter; + + } + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture, texData ); + + }, onProgress, onError ); + + + return texture; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function ImageLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( ImageLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' ); + image.onload = function () { + + image.onload = null; + + URL.revokeObjectURL( image.src ); + + if ( onLoad ) onLoad( image ); + + scope.manager.itemEnd( url ); + + }; + image.onerror = onError; + + if ( url.indexOf( 'data:' ) === 0 ) { + + image.src = url; + + } else { + + var loader = new XHRLoader(); + loader.setPath( this.path ); + loader.setResponseType( 'blob' ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( blob ) { + + image.src = URL.createObjectURL( blob ); + + }, onProgress, onError ); + + } + + scope.manager.itemStart( url ); + + return image; + + }, + + setCrossOrigin: function ( value ) { + + this.crossOrigin = value; + return this; + + }, + + setWithCredentials: function ( value ) { + + this.withCredentials = value; + return this; + + }, + + setPath: function ( value ) { + + this.path = value; + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function CubeTextureLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( CubeTextureLoader.prototype, { + + load: function ( urls, onLoad, onProgress, onError ) { + + var texture = new CubeTexture(); + + var loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setPath( this.path ); + + var loaded = 0; + + function loadTexture( i ) { + + loader.load( urls[ i ], function ( image ) { + + texture.images[ i ] = image; + + loaded ++; + + if ( loaded === 6 ) { + + texture.needsUpdate = true; + + if ( onLoad ) onLoad( texture ); + + } + + }, undefined, onError ); + + } + + for ( var i = 0; i < urls.length; ++ i ) { + + loadTexture( i ); + + } + + return texture; + + }, + + setCrossOrigin: function ( value ) { + + this.crossOrigin = value; + return this; + + }, + + setPath: function ( value ) { + + this.path = value; + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function TextureLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( TextureLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var texture = new Texture(); + + var loader = new ImageLoader( this.manager ); + loader.setCrossOrigin( this.crossOrigin ); + loader.setWithCredentials( this.withCredentials ); + loader.setPath( this.path ); + loader.load( url, function ( image ) { + + // JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB. + var isJPEG = url.search( /\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\:image\/jpeg/ ) === 0; + + texture.format = isJPEG ? RGBFormat : RGBAFormat; + texture.image = image; + texture.needsUpdate = true; + + if ( onLoad !== undefined ) { + + onLoad( texture ); + + } + + }, onProgress, onError ); + + return texture; + + }, + + setCrossOrigin: function ( value ) { + + this.crossOrigin = value; + return this; + + }, + + setWithCredentials: function ( value ) { + + this.withCredentials = value; + return this; + + }, + + setPath: function ( value ) { + + this.path = value; + return this; + + } + + + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Light( color, intensity ) { + + Object3D.call( this ); + + this.type = 'Light'; + + this.color = new Color( color ); + this.intensity = intensity !== undefined ? intensity : 1; + + this.receiveShadow = undefined; + + } + + Light.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Light, + + isLight: true, + + copy: function ( source ) { + + Object3D.prototype.copy.call( this, source ); + + this.color.copy( source.color ); + this.intensity = source.intensity; + + return this; + + }, + + toJSON: function ( meta ) { + + var data = Object3D.prototype.toJSON.call( this, meta ); + + data.object.color = this.color.getHex(); + data.object.intensity = this.intensity; + + if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex(); + + if ( this.distance !== undefined ) data.object.distance = this.distance; + if ( this.angle !== undefined ) data.object.angle = this.angle; + if ( this.decay !== undefined ) data.object.decay = this.decay; + if ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra; + + if ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON(); + + return data; + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function HemisphereLight( skyColor, groundColor, intensity ) { + + Light.call( this, skyColor, intensity ); + + this.type = 'HemisphereLight'; + + this.castShadow = undefined; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.groundColor = new Color( groundColor ); + + } + + HemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: HemisphereLight, + + isHemisphereLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.groundColor.copy( source.groundColor ); + + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function LightShadow( camera ) { + + this.camera = camera; + + this.bias = 0; + this.radius = 1; + + this.mapSize = new Vector2( 512, 512 ); + + this.map = null; + this.matrix = new Matrix4(); + + } + + Object.assign( LightShadow.prototype, { + + copy: function ( source ) { + + this.camera = source.camera.clone(); + + this.bias = source.bias; + this.radius = source.radius; + + this.mapSize.copy( source.mapSize ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + toJSON: function () { + + var object = {}; + + if ( this.bias !== 0 ) object.bias = this.bias; + if ( this.radius !== 1 ) object.radius = this.radius; + if ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray(); + + object.camera = this.camera.toJSON( false ).object; + delete object.camera.matrix; + + return object; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function SpotLightShadow() { + + LightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) ); + + } + + SpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), { + + constructor: SpotLightShadow, + + isSpotLightShadow: true, + + update: function ( light ) { + + var fov = _Math.RAD2DEG * 2 * light.angle; + var aspect = this.mapSize.width / this.mapSize.height; + var far = light.distance || 500; + + var camera = this.camera; + + if ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) { + + camera.fov = fov; + camera.aspect = aspect; + camera.far = far; + camera.updateProjectionMatrix(); + + } + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function SpotLight( color, intensity, distance, angle, penumbra, decay ) { + + Light.call( this, color, intensity ); + + this.type = 'SpotLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + Object.defineProperty( this, 'power', { + get: function () { + // intensity = power per solid angle. + // ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf + return this.intensity * Math.PI; + }, + set: function ( power ) { + // intensity = power per solid angle. + // ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf + this.intensity = power / Math.PI; + } + } ); + + this.distance = ( distance !== undefined ) ? distance : 0; + this.angle = ( angle !== undefined ) ? angle : Math.PI / 3; + this.penumbra = ( penumbra !== undefined ) ? penumbra : 0; + this.decay = ( decay !== undefined ) ? decay : 1; // for physically correct lights, should be 2. + + this.shadow = new SpotLightShadow(); + + } + + SpotLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: SpotLight, + + isSpotLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.distance = source.distance; + this.angle = source.angle; + this.penumbra = source.penumbra; + this.decay = source.decay; + + this.target = source.target.clone(); + + this.shadow = source.shadow.clone(); + + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + + function PointLight( color, intensity, distance, decay ) { + + Light.call( this, color, intensity ); + + this.type = 'PointLight'; + + Object.defineProperty( this, 'power', { + get: function () { + // intensity = power per solid angle. + // ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf + return this.intensity * 4 * Math.PI; + + }, + set: function ( power ) { + // intensity = power per solid angle. + // ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf + this.intensity = power / ( 4 * Math.PI ); + } + } ); + + this.distance = ( distance !== undefined ) ? distance : 0; + this.decay = ( decay !== undefined ) ? decay : 1; // for physically correct lights, should be 2. + + this.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) ); + + } + + PointLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: PointLight, + + isPointLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.distance = source.distance; + this.decay = source.decay; + + this.shadow = source.shadow.clone(); + + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function DirectionalLightShadow( light ) { + + LightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) ); + + } + + DirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), { + + constructor: DirectionalLightShadow + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function DirectionalLight( color, intensity ) { + + Light.call( this, color, intensity ); + + this.type = 'DirectionalLight'; + + this.position.copy( Object3D.DefaultUp ); + this.updateMatrix(); + + this.target = new Object3D(); + + this.shadow = new DirectionalLightShadow(); + + } + + DirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: DirectionalLight, + + isDirectionalLight: true, + + copy: function ( source ) { + + Light.prototype.copy.call( this, source ); + + this.target = source.target.clone(); + + this.shadow = source.shadow.clone(); + + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function AmbientLight( color, intensity ) { + + Light.call( this, color, intensity ); + + this.type = 'AmbientLight'; + + this.castShadow = undefined; + + } + + AmbientLight.prototype = Object.assign( Object.create( Light.prototype ), { + + constructor: AmbientLight, + + isAmbientLight: true, + + } ); + + /** + * @author tschw + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + */ + + var AnimationUtils = { + + // same as Array.prototype.slice, but also works on typed arrays + arraySlice: function( array, from, to ) { + + if ( AnimationUtils.isTypedArray( array ) ) { + + return new array.constructor( array.subarray( from, to ) ); + + } + + return array.slice( from, to ); + + }, + + // converts an array to a specific type + convertArray: function( array, type, forceClone ) { + + if ( ! array || // let 'undefined' and 'null' pass + ! forceClone && array.constructor === type ) return array; + + if ( typeof type.BYTES_PER_ELEMENT === 'number' ) { + + return new type( array ); // create typed array + + } + + return Array.prototype.slice.call( array ); // create Array + + }, + + isTypedArray: function( object ) { + + return ArrayBuffer.isView( object ) && + ! ( object instanceof DataView ); + + }, + + // returns an array by which times and values can be sorted + getKeyframeOrder: function( times ) { + + function compareTime( i, j ) { + + return times[ i ] - times[ j ]; + + } + + var n = times.length; + var result = new Array( n ); + for ( var i = 0; i !== n; ++ i ) result[ i ] = i; + + result.sort( compareTime ); + + return result; + + }, + + // uses the array previously returned by 'getKeyframeOrder' to sort data + sortedArray: function( values, stride, order ) { + + var nValues = values.length; + var result = new values.constructor( nValues ); + + for ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) { + + var srcOffset = order[ i ] * stride; + + for ( var j = 0; j !== stride; ++ j ) { + + result[ dstOffset ++ ] = values[ srcOffset + j ]; + + } + + } + + return result; + + }, + + // function for parsing AOS keyframe formats + flattenJSON: function( jsonKeys, times, values, valuePropertyName ) { + + var i = 1, key = jsonKeys[ 0 ]; + + while ( key !== undefined && key[ valuePropertyName ] === undefined ) { + + key = jsonKeys[ i ++ ]; + + } + + if ( key === undefined ) return; // no data + + var value = key[ valuePropertyName ]; + if ( value === undefined ) return; // no data + + if ( Array.isArray( value ) ) { + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push.apply( values, value ); // push all elements + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else if ( value.toArray !== undefined ) { + // ...assume THREE.Math-ish + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + value.toArray( values, values.length ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } else { + // otherwise push as-is + + do { + + value = key[ valuePropertyName ]; + + if ( value !== undefined ) { + + times.push( key.time ); + values.push( value ); + + } + + key = jsonKeys[ i ++ ]; + + } while ( key !== undefined ); + + } + + } + + }; + + /** + * Abstract base class of interpolants over parametric samples. + * + * The parameter domain is one dimensional, typically the time or a path + * along a curve defined by the data. + * + * The sample values can have any dimensionality and derived classes may + * apply special interpretations to the data. + * + * This class provides the interval seek in a Template Method, deferring + * the actual interpolation to derived classes. + * + * Time complexity is O(1) for linear access crossing at most two points + * and O(log N) for random access, where N is the number of positions. + * + * References: + * + * http://www.oodesign.com/template-method-pattern.html + * + * @author tschw + */ + + function Interpolant( + parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + this.parameterPositions = parameterPositions; + this._cachedIndex = 0; + + this.resultBuffer = resultBuffer !== undefined ? + resultBuffer : new sampleValues.constructor( sampleSize ); + this.sampleValues = sampleValues; + this.valueSize = sampleSize; + + } + + Interpolant.prototype = { + + constructor: Interpolant, + + evaluate: function( t ) { + + var pp = this.parameterPositions, + i1 = this._cachedIndex, + + t1 = pp[ i1 ], + t0 = pp[ i1 - 1 ]; + + validate_interval: { + + seek: { + + var right; + + linear_scan: { + //- See http://jsperf.com/comparison-to-undefined/3 + //- slower code: + //- + //- if ( t >= t1 || t1 === undefined ) { + forward_scan: if ( ! ( t < t1 ) ) { + + for ( var giveUpAt = i1 + 2; ;) { + + if ( t1 === undefined ) { + + if ( t < t0 ) break forward_scan; + + // after end + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t, t0 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t0 = t1; + t1 = pp[ ++ i1 ]; + + if ( t < t1 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the right side of the index + right = pp.length; + break linear_scan; + + } + + //- slower code: + //- if ( t < t0 || t0 === undefined ) { + if ( ! ( t >= t0 ) ) { + + // looping? + + var t1global = pp[ 1 ]; + + if ( t < t1global ) { + + i1 = 2; // + 1, using the scan for the details + t0 = t1global; + + } + + // linear reverse scan + + for ( var giveUpAt = i1 - 2; ;) { + + if ( t0 === undefined ) { + + // before start + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( i1 === giveUpAt ) break; // this loop + + t1 = t0; + t0 = pp[ -- i1 - 1 ]; + + if ( t >= t0 ) { + + // we have arrived at the sought interval + break seek; + + } + + } + + // prepare binary search on the left side of the index + right = i1; + i1 = 0; + break linear_scan; + + } + + // the interval is valid + + break validate_interval; + + } // linear scan + + // binary search + + while ( i1 < right ) { + + var mid = ( i1 + right ) >>> 1; + + if ( t < pp[ mid ] ) { + + right = mid; + + } else { + + i1 = mid + 1; + + } + + } + + t1 = pp[ i1 ]; + t0 = pp[ i1 - 1 ]; + + // check boundary cases, again + + if ( t0 === undefined ) { + + this._cachedIndex = 0; + return this.beforeStart_( 0, t, t1 ); + + } + + if ( t1 === undefined ) { + + i1 = pp.length; + this._cachedIndex = i1; + return this.afterEnd_( i1 - 1, t0, t ); + + } + + } // seek + + this._cachedIndex = i1; + + this.intervalChanged_( i1, t0, t1 ); + + } // validate_interval + + return this.interpolate_( i1, t0, t, t1 ); + + }, + + settings: null, // optional, subclass-specific settings structure + // Note: The indirection allows central control of many interpolants. + + // --- Protected interface + + DefaultSettings_: {}, + + getSettings_: function() { + + return this.settings || this.DefaultSettings_; + + }, + + copySampleValue_: function( index ) { + + // copies a sample value to the result buffer + + var result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + offset = index * stride; + + for ( var i = 0; i !== stride; ++ i ) { + + result[ i ] = values[ offset + i ]; + + } + + return result; + + }, + + // Template methods for derived classes: + + interpolate_: function( i1, t0, t, t1 ) { + + throw new Error( "call to abstract method" ); + // implementations shall return this.resultBuffer + + }, + + intervalChanged_: function( i1, t0, t1 ) { + + // empty + + } + + }; + + Object.assign( Interpolant.prototype, { + + beforeStart_: //( 0, t, t0 ), returns this.resultBuffer + Interpolant.prototype.copySampleValue_, + + afterEnd_: //( N-1, tN-1, t ), returns this.resultBuffer + Interpolant.prototype.copySampleValue_ + + } ); + + /** + * Fast and simple cubic spline interpolant. + * + * It was derived from a Hermitian construction setting the first derivative + * at each sample position to the linear slope between neighboring positions + * over their parameter interval. + * + * @author tschw + */ + + function CubicInterpolant( + parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( + this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + + this._weightPrev = -0; + this._offsetPrev = -0; + this._weightNext = -0; + this._offsetNext = -0; + + } + + CubicInterpolant.prototype = + Object.assign( Object.create( Interpolant.prototype ), { + + constructor: CubicInterpolant, + + DefaultSettings_: { + + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + + }, + + intervalChanged_: function( i1, t0, t1 ) { + + var pp = this.parameterPositions, + iPrev = i1 - 2, + iNext = i1 + 1, + + tPrev = pp[ iPrev ], + tNext = pp[ iNext ]; + + if ( tPrev === undefined ) { + + switch ( this.getSettings_().endingStart ) { + + case ZeroSlopeEnding: + + // f'(t0) = 0 + iPrev = i1; + tPrev = 2 * t0 - t1; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iPrev = pp.length - 2; + tPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(t0) = 0 a.k.a. Natural Spline + iPrev = i1; + tPrev = t1; + + } + + } + + if ( tNext === undefined ) { + + switch ( this.getSettings_().endingEnd ) { + + case ZeroSlopeEnding: + + // f'(tN) = 0 + iNext = i1; + tNext = 2 * t1 - t0; + + break; + + case WrapAroundEnding: + + // use the other end of the curve + iNext = 1; + tNext = t1 + pp[ 1 ] - pp[ 0 ]; + + break; + + default: // ZeroCurvatureEnding + + // f''(tN) = 0, a.k.a. Natural Spline + iNext = i1 - 1; + tNext = t0; + + } + + } + + var halfDt = ( t1 - t0 ) * 0.5, + stride = this.valueSize; + + this._weightPrev = halfDt / ( t0 - tPrev ); + this._weightNext = halfDt / ( tNext - t1 ); + this._offsetPrev = iPrev * stride; + this._offsetNext = iNext * stride; + + }, + + interpolate_: function( i1, t0, t, t1 ) { + + var result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + o1 = i1 * stride, o0 = o1 - stride, + oP = this._offsetPrev, oN = this._offsetNext, + wP = this._weightPrev, wN = this._weightNext, + + p = ( t - t0 ) / ( t1 - t0 ), + pp = p * p, + ppp = pp * p; + + // evaluate polynomials + + var sP = - wP * ppp + 2 * wP * pp - wP * p; + var s0 = ( 1 + wP ) * ppp + (-1.5 - 2 * wP ) * pp + ( -0.5 + wP ) * p + 1; + var s1 = (-1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p; + var sN = wN * ppp - wN * pp; + + // combine data linearly + + for ( var i = 0; i !== stride; ++ i ) { + + result[ i ] = + sP * values[ oP + i ] + + s0 * values[ o0 + i ] + + s1 * values[ o1 + i ] + + sN * values[ oN + i ]; + + } + + return result; + + } + + } ); + + /** + * @author tschw + */ + + function LinearInterpolant( + parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( + this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + LinearInterpolant.prototype = + Object.assign( Object.create( Interpolant.prototype ), { + + constructor: LinearInterpolant, + + interpolate_: function( i1, t0, t, t1 ) { + + var result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + offset1 = i1 * stride, + offset0 = offset1 - stride, + + weight1 = ( t - t0 ) / ( t1 - t0 ), + weight0 = 1 - weight1; + + for ( var i = 0; i !== stride; ++ i ) { + + result[ i ] = + values[ offset0 + i ] * weight0 + + values[ offset1 + i ] * weight1; + + } + + return result; + + } + + } ); + + /** + * + * Interpolant that evaluates to the sample value at the position preceeding + * the parameter. + * + * @author tschw + */ + + function DiscreteInterpolant( + parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( + this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + DiscreteInterpolant.prototype = + Object.assign( Object.create( Interpolant.prototype ), { + + constructor: DiscreteInterpolant, + + interpolate_: function( i1, t0, t, t1 ) { + + return this.copySampleValue_( i1 - 1 ); + + } + + } ); + + var KeyframeTrackPrototype; + + KeyframeTrackPrototype = { + + TimeBufferType: Float32Array, + ValueBufferType: Float32Array, + + DefaultInterpolation: InterpolateLinear, + + InterpolantFactoryMethodDiscrete: function( result ) { + + return new DiscreteInterpolant( + this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodLinear: function( result ) { + + return new LinearInterpolant( + this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodSmooth: function( result ) { + + return new CubicInterpolant( + this.times, this.values, this.getValueSize(), result ); + + }, + + setInterpolation: function( interpolation ) { + + var factoryMethod; + + switch ( interpolation ) { + + case InterpolateDiscrete: + + factoryMethod = this.InterpolantFactoryMethodDiscrete; + + break; + + case InterpolateLinear: + + factoryMethod = this.InterpolantFactoryMethodLinear; + + break; + + case InterpolateSmooth: + + factoryMethod = this.InterpolantFactoryMethodSmooth; + + break; + + } + + if ( factoryMethod === undefined ) { + + var message = "unsupported interpolation for " + + this.ValueTypeName + " keyframe track named " + this.name; + + if ( this.createInterpolant === undefined ) { + + // fall back to default, unless the default itself is messed up + if ( interpolation !== this.DefaultInterpolation ) { + + this.setInterpolation( this.DefaultInterpolation ); + + } else { + + throw new Error( message ); // fatal, in this case + + } + + } + + console.warn( message ); + return; + + } + + this.createInterpolant = factoryMethod; + + }, + + getInterpolation: function() { + + switch ( this.createInterpolant ) { + + case this.InterpolantFactoryMethodDiscrete: + + return InterpolateDiscrete; + + case this.InterpolantFactoryMethodLinear: + + return InterpolateLinear; + + case this.InterpolantFactoryMethodSmooth: + + return InterpolateSmooth; + + } + + }, + + getValueSize: function() { + + return this.values.length / this.times.length; + + }, + + // move all keyframes either forwards or backwards in time + shift: function( timeOffset ) { + + if( timeOffset !== 0.0 ) { + + var times = this.times; + + for( var i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] += timeOffset; + + } + + } + + return this; + + }, + + // scale all keyframe times by a factor (useful for frame <-> seconds conversions) + scale: function( timeScale ) { + + if( timeScale !== 1.0 ) { + + var times = this.times; + + for( var i = 0, n = times.length; i !== n; ++ i ) { + + times[ i ] *= timeScale; + + } + + } + + return this; + + }, + + // removes keyframes before and after animation without changing any values within the range [startTime, endTime]. + // IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values + trim: function( startTime, endTime ) { + + var times = this.times, + nKeys = times.length, + from = 0, + to = nKeys - 1; + + while ( from !== nKeys && times[ from ] < startTime ) ++ from; + while ( to !== -1 && times[ to ] > endTime ) -- to; + + ++ to; // inclusive -> exclusive bound + + if( from !== 0 || to !== nKeys ) { + + // empty tracks are forbidden, so keep at least one keyframe + if ( from >= to ) to = Math.max( to , 1 ), from = to - 1; + + var stride = this.getValueSize(); + this.times = AnimationUtils.arraySlice( times, from, to ); + this.values = AnimationUtils. + arraySlice( this.values, from * stride, to * stride ); + + } + + return this; + + }, + + // ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable + validate: function() { + + var valid = true; + + var valueSize = this.getValueSize(); + if ( valueSize - Math.floor( valueSize ) !== 0 ) { + + console.error( "invalid value size in track", this ); + valid = false; + + } + + var times = this.times, + values = this.values, + + nKeys = times.length; + + if( nKeys === 0 ) { + + console.error( "track is empty", this ); + valid = false; + + } + + var prevTime = null; + + for( var i = 0; i !== nKeys; i ++ ) { + + var currTime = times[ i ]; + + if ( typeof currTime === 'number' && isNaN( currTime ) ) { + + console.error( "time is not a valid number", this, i, currTime ); + valid = false; + break; + + } + + if( prevTime !== null && prevTime > currTime ) { + + console.error( "out of order keys", this, i, currTime, prevTime ); + valid = false; + break; + + } + + prevTime = currTime; + + } + + if ( values !== undefined ) { + + if ( AnimationUtils.isTypedArray( values ) ) { + + for ( var i = 0, n = values.length; i !== n; ++ i ) { + + var value = values[ i ]; + + if ( isNaN( value ) ) { + + console.error( "value is not a valid number", this, i, value ); + valid = false; + break; + + } + + } + + } + + } + + return valid; + + }, + + // removes equivalent sequential keys as common in morph target sequences + // (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0) + optimize: function() { + + var times = this.times, + values = this.values, + stride = this.getValueSize(), + + smoothInterpolation = this.getInterpolation() === InterpolateSmooth, + + writeIndex = 1, + lastIndex = times.length - 1; + + for( var i = 1; i < lastIndex; ++ i ) { + + var keep = false; + + var time = times[ i ]; + var timeNext = times[ i + 1 ]; + + // remove adjacent keyframes scheduled at the same time + + if ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) { + + if ( ! smoothInterpolation ) { + + // remove unnecessary keyframes same as their neighbors + + var offset = i * stride, + offsetP = offset - stride, + offsetN = offset + stride; + + for ( var j = 0; j !== stride; ++ j ) { + + var value = values[ offset + j ]; + + if ( value !== values[ offsetP + j ] || + value !== values[ offsetN + j ] ) { + + keep = true; + break; + + } + + } + + } else keep = true; + + } + + // in-place compaction + + if ( keep ) { + + if ( i !== writeIndex ) { + + times[ writeIndex ] = times[ i ]; + + var readOffset = i * stride, + writeOffset = writeIndex * stride; + + for ( var j = 0; j !== stride; ++ j ) + + values[ writeOffset + j ] = values[ readOffset + j ]; + + } + + ++ writeIndex; + + } + + } + + // flush last keyframe (compaction looks ahead) + + if ( lastIndex > 0 ) { + + times[ writeIndex ] = times[ lastIndex ]; + + for ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j ) + + values[ writeOffset + j ] = values[ readOffset + j ]; + + ++ writeIndex; + + } + + if ( writeIndex !== times.length ) { + + this.times = AnimationUtils.arraySlice( times, 0, writeIndex ); + this.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride ); + + } + + return this; + + } + + }; + + function KeyframeTrackConstructor( name, times, values, interpolation ) { + + if( name === undefined ) throw new Error( "track name is undefined" ); + + if( times === undefined || times.length === 0 ) { + + throw new Error( "no keyframes in track named " + name ); + + } + + this.name = name; + + this.times = AnimationUtils.convertArray( times, this.TimeBufferType ); + this.values = AnimationUtils.convertArray( values, this.ValueBufferType ); + + this.setInterpolation( interpolation || this.DefaultInterpolation ); + + this.validate(); + this.optimize(); + + } + + /** + * + * A Track of vectored keyframe values. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function VectorKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.call( this, name, times, values, interpolation ); + + } + + VectorKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: VectorKeyframeTrack, + + ValueTypeName: 'vector' + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + + } ); + + /** + * Spherical linear unit quaternion interpolant. + * + * @author tschw + */ + + function QuaternionLinearInterpolant( + parameterPositions, sampleValues, sampleSize, resultBuffer ) { + + Interpolant.call( + this, parameterPositions, sampleValues, sampleSize, resultBuffer ); + + } + + QuaternionLinearInterpolant.prototype = + Object.assign( Object.create( Interpolant.prototype ), { + + constructor: QuaternionLinearInterpolant, + + interpolate_: function( i1, t0, t, t1 ) { + + var result = this.resultBuffer, + values = this.sampleValues, + stride = this.valueSize, + + offset = i1 * stride, + + alpha = ( t - t0 ) / ( t1 - t0 ); + + for ( var end = offset + stride; offset !== end; offset += 4 ) { + + Quaternion.slerpFlat( result, 0, + values, offset - stride, values, offset, alpha ); + + } + + return result; + + } + + } ); + + /** + * + * A Track of quaternion keyframe values. + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function QuaternionKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.call( this, name, times, values, interpolation ); + + } + + QuaternionKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: QuaternionKeyframeTrack, + + ValueTypeName: 'quaternion', + + // ValueBufferType is inherited + + DefaultInterpolation: InterpolateLinear, + + InterpolantFactoryMethodLinear: function( result ) { + + return new QuaternionLinearInterpolant( + this.times, this.values, this.getValueSize(), result ); + + }, + + InterpolantFactoryMethodSmooth: undefined // not yet implemented + + } ); + + /** + * + * A Track of numeric keyframe values. + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function NumberKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.call( this, name, times, values, interpolation ); + + } + + NumberKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: NumberKeyframeTrack, + + ValueTypeName: 'number', + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + + } ); + + /** + * + * A Track that interpolates Strings + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function StringKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.call( this, name, times, values, interpolation ); + + } + + StringKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: StringKeyframeTrack, + + ValueTypeName: 'string', + ValueBufferType: Array, + + DefaultInterpolation: InterpolateDiscrete, + + InterpolantFactoryMethodLinear: undefined, + + InterpolantFactoryMethodSmooth: undefined + + } ); + + /** + * + * A Track of Boolean keyframe values. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function BooleanKeyframeTrack( name, times, values ) { + + KeyframeTrackConstructor.call( this, name, times, values ); + + } + + BooleanKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: BooleanKeyframeTrack, + + ValueTypeName: 'bool', + ValueBufferType: Array, + + DefaultInterpolation: InterpolateDiscrete, + + InterpolantFactoryMethodLinear: undefined, + InterpolantFactoryMethodSmooth: undefined + + // Note: Actually this track could have a optimized / compressed + // representation of a single value and a custom interpolant that + // computes "firstValue ^ isOdd( index )". + + } ); + + /** + * + * A Track of keyframe values that represent color. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function ColorKeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.call( this, name, times, values, interpolation ); + + } + + ColorKeyframeTrack.prototype = + Object.assign( Object.create( KeyframeTrackPrototype ), { + + constructor: ColorKeyframeTrack, + + ValueTypeName: 'color' + + // ValueBufferType is inherited + + // DefaultInterpolation is inherited + + + // Note: Very basic implementation and nothing special yet. + // However, this is the place for color space parameterization. + + } ); + + /** + * + * A timed sequence of keyframes for a specific property. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function KeyframeTrack( name, times, values, interpolation ) { + + KeyframeTrackConstructor.apply( this, arguments ); + + } + + KeyframeTrack.prototype = KeyframeTrackPrototype; + KeyframeTrackPrototype.constructor = KeyframeTrack; + + // Static methods: + + Object.assign( KeyframeTrack, { + + // Serialization (in static context, because of constructor invocation + // and automatic invocation of .toJSON): + + parse: function( json ) { + + if( json.type === undefined ) { + + throw new Error( "track type undefined, can not parse" ); + + } + + var trackType = KeyframeTrack._getTrackTypeForValueTypeName( json.type ); + + if ( json.times === undefined ) { + + var times = [], values = []; + + AnimationUtils.flattenJSON( json.keys, times, values, 'value' ); + + json.times = times; + json.values = values; + + } + + // derived classes can define a static parse method + if ( trackType.parse !== undefined ) { + + return trackType.parse( json ); + + } else { + + // by default, we asssume a constructor compatible with the base + return new trackType( + json.name, json.times, json.values, json.interpolation ); + + } + + }, + + toJSON: function( track ) { + + var trackType = track.constructor; + + var json; + + // derived classes can define a static toJSON method + if ( trackType.toJSON !== undefined ) { + + json = trackType.toJSON( track ); + + } else { + + // by default, we assume the data can be serialized as-is + json = { + + 'name': track.name, + 'times': AnimationUtils.convertArray( track.times, Array ), + 'values': AnimationUtils.convertArray( track.values, Array ) + + }; + + var interpolation = track.getInterpolation(); + + if ( interpolation !== track.DefaultInterpolation ) { + + json.interpolation = interpolation; + + } + + } + + json.type = track.ValueTypeName; // mandatory + + return json; + + }, + + _getTrackTypeForValueTypeName: function( typeName ) { + + switch( typeName.toLowerCase() ) { + + case "scalar": + case "double": + case "float": + case "number": + case "integer": + + return NumberKeyframeTrack; + + case "vector": + case "vector2": + case "vector3": + case "vector4": + + return VectorKeyframeTrack; + + case "color": + + return ColorKeyframeTrack; + + case "quaternion": + + return QuaternionKeyframeTrack; + + case "bool": + case "boolean": + + return BooleanKeyframeTrack; + + case "string": + + return StringKeyframeTrack; + + } + + throw new Error( "Unsupported typeName: " + typeName ); + + } + + } ); + + /** + * + * Reusable set of Tracks that represent an animation. + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + */ + + function AnimationClip( name, duration, tracks ) { + + this.name = name; + this.tracks = tracks; + this.duration = ( duration !== undefined ) ? duration : -1; + + this.uuid = _Math.generateUUID(); + + // this means it should figure out its duration by scanning the tracks + if ( this.duration < 0 ) { + + this.resetDuration(); + + } + + this.optimize(); + + } + + AnimationClip.prototype = { + + constructor: AnimationClip, + + resetDuration: function() { + + var tracks = this.tracks, + duration = 0; + + for ( var i = 0, n = tracks.length; i !== n; ++ i ) { + + var track = this.tracks[ i ]; + + duration = Math.max( + duration, track.times[ track.times.length - 1 ] ); + + } + + this.duration = duration; + + }, + + trim: function() { + + for ( var i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].trim( 0, this.duration ); + + } + + return this; + + }, + + optimize: function() { + + for ( var i = 0; i < this.tracks.length; i ++ ) { + + this.tracks[ i ].optimize(); + + } + + return this; + + } + + }; + + // Static methods: + + Object.assign( AnimationClip, { + + parse: function( json ) { + + var tracks = [], + jsonTracks = json.tracks, + frameTime = 1.0 / ( json.fps || 1.0 ); + + for ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) { + + tracks.push( KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) ); + + } + + return new AnimationClip( json.name, json.duration, tracks ); + + }, + + + toJSON: function( clip ) { + + var tracks = [], + clipTracks = clip.tracks; + + var json = { + + 'name': clip.name, + 'duration': clip.duration, + 'tracks': tracks + + }; + + for ( var i = 0, n = clipTracks.length; i !== n; ++ i ) { + + tracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) ); + + } + + return json; + + }, + + + CreateFromMorphTargetSequence: function( name, morphTargetSequence, fps, noLoop ) { + + var numMorphTargets = morphTargetSequence.length; + var tracks = []; + + for ( var i = 0; i < numMorphTargets; i ++ ) { + + var times = []; + var values = []; + + times.push( + ( i + numMorphTargets - 1 ) % numMorphTargets, + i, + ( i + 1 ) % numMorphTargets ); + + values.push( 0, 1, 0 ); + + var order = AnimationUtils.getKeyframeOrder( times ); + times = AnimationUtils.sortedArray( times, 1, order ); + values = AnimationUtils.sortedArray( values, 1, order ); + + // if there is a key at the first frame, duplicate it as the + // last frame as well for perfect loop. + if ( ! noLoop && times[ 0 ] === 0 ) { + + times.push( numMorphTargets ); + values.push( values[ 0 ] ); + + } + + tracks.push( + new NumberKeyframeTrack( + '.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']', + times, values + ).scale( 1.0 / fps ) ); + } + + return new AnimationClip( name, -1, tracks ); + + }, + + findByName: function( objectOrClipArray, name ) { + + var clipArray = objectOrClipArray; + + if ( ! Array.isArray( objectOrClipArray ) ) { + + var o = objectOrClipArray; + clipArray = o.geometry && o.geometry.animations || o.animations; + + } + + for ( var i = 0; i < clipArray.length; i ++ ) { + + if ( clipArray[ i ].name === name ) { + + return clipArray[ i ]; + + } + } + + return null; + + }, + + CreateClipsFromMorphTargetSequences: function( morphTargets, fps, noLoop ) { + + var animationToMorphTargets = {}; + + // tested with https://regex101.com/ on trick sequences + // such flamingo_flyA_003, flamingo_run1_003, crdeath0059 + var pattern = /^([\w-]*?)([\d]+)$/; + + // sort morph target names into animation groups based + // patterns like Walk_001, Walk_002, Run_001, Run_002 + for ( var i = 0, il = morphTargets.length; i < il; i ++ ) { + + var morphTarget = morphTargets[ i ]; + var parts = morphTarget.name.match( pattern ); + + if ( parts && parts.length > 1 ) { + + var name = parts[ 1 ]; + + var animationMorphTargets = animationToMorphTargets[ name ]; + if ( ! animationMorphTargets ) { + + animationToMorphTargets[ name ] = animationMorphTargets = []; + + } + + animationMorphTargets.push( morphTarget ); + + } + + } + + var clips = []; + + for ( var name in animationToMorphTargets ) { + + clips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) ); + + } + + return clips; + + }, + + // parse the animation.hierarchy format + parseAnimation: function( animation, bones ) { + + if ( ! animation ) { + + console.error( " no animation in JSONLoader data" ); + return null; + + } + + var addNonemptyTrack = function( + trackType, trackName, animationKeys, propertyName, destTracks ) { + + // only return track if there are actually keys. + if ( animationKeys.length !== 0 ) { + + var times = []; + var values = []; + + AnimationUtils.flattenJSON( + animationKeys, times, values, propertyName ); + + // empty keys are filtered out, so check again + if ( times.length !== 0 ) { + + destTracks.push( new trackType( trackName, times, values ) ); + + } + + } + + }; + + var tracks = []; + + var clipName = animation.name || 'default'; + // automatic length determination in AnimationClip. + var duration = animation.length || -1; + var fps = animation.fps || 30; + + var hierarchyTracks = animation.hierarchy || []; + + for ( var h = 0; h < hierarchyTracks.length; h ++ ) { + + var animationKeys = hierarchyTracks[ h ].keys; + + // skip empty tracks + if ( ! animationKeys || animationKeys.length === 0 ) continue; + + // process morph targets in a way exactly compatible + // with AnimationHandler.init( animation ) + if ( animationKeys[0].morphTargets ) { + + // figure out all morph targets used in this track + var morphTargetNames = {}; + for ( var k = 0; k < animationKeys.length; k ++ ) { + + if ( animationKeys[k].morphTargets ) { + + for ( var m = 0; m < animationKeys[k].morphTargets.length; m ++ ) { + + morphTargetNames[ animationKeys[k].morphTargets[m] ] = -1; + } + + } + + } + + // create a track for each morph target with all zero + // morphTargetInfluences except for the keys in which + // the morphTarget is named. + for ( var morphTargetName in morphTargetNames ) { + + var times = []; + var values = []; + + for ( var m = 0; + m !== animationKeys[k].morphTargets.length; ++ m ) { + + var animationKey = animationKeys[k]; + + times.push( animationKey.time ); + values.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 ); + + } + + tracks.push( new NumberKeyframeTrack( + '.morphTargetInfluence[' + morphTargetName + ']', times, values ) ); + + } + + duration = morphTargetNames.length * ( fps || 1.0 ); + + } else { + // ...assume skeletal animation + + var boneName = '.bones[' + bones[ h ].name + ']'; + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.position', + animationKeys, 'pos', tracks ); + + addNonemptyTrack( + QuaternionKeyframeTrack, boneName + '.quaternion', + animationKeys, 'rot', tracks ); + + addNonemptyTrack( + VectorKeyframeTrack, boneName + '.scale', + animationKeys, 'scl', tracks ); + + } + + } + + if ( tracks.length === 0 ) { + + return null; + + } + + var clip = new AnimationClip( clipName, duration, tracks ); + + return clip; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function MaterialLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + this.textures = {}; + + } + + Object.assign( MaterialLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var loader = new XHRLoader( scope.manager ); + loader.load( url, function ( text ) { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + }, onProgress, onError ); + + }, + + setTextures: function ( value ) { + + this.textures = value; + + }, + + parse: function ( json ) { + + var textures = this.textures; + + function getTexture( name ) { + + if ( textures[ name ] === undefined ) { + + console.warn( 'THREE.MaterialLoader: Undefined texture', name ); + + } + + return textures[ name ]; + + } + + var material = new Materials[ json.type ](); + + if ( json.uuid !== undefined ) material.uuid = json.uuid; + if ( json.name !== undefined ) material.name = json.name; + if ( json.color !== undefined ) material.color.setHex( json.color ); + if ( json.roughness !== undefined ) material.roughness = json.roughness; + if ( json.metalness !== undefined ) material.metalness = json.metalness; + if ( json.emissive !== undefined ) material.emissive.setHex( json.emissive ); + if ( json.specular !== undefined ) material.specular.setHex( json.specular ); + if ( json.shininess !== undefined ) material.shininess = json.shininess; + if ( json.uniforms !== undefined ) material.uniforms = json.uniforms; + if ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader; + if ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader; + if ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors; + if ( json.fog !== undefined ) material.fog = json.fog; + if ( json.shading !== undefined ) material.shading = json.shading; + if ( json.blending !== undefined ) material.blending = json.blending; + if ( json.side !== undefined ) material.side = json.side; + if ( json.opacity !== undefined ) material.opacity = json.opacity; + if ( json.transparent !== undefined ) material.transparent = json.transparent; + if ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest; + if ( json.depthTest !== undefined ) material.depthTest = json.depthTest; + if ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite; + if ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite; + if ( json.wireframe !== undefined ) material.wireframe = json.wireframe; + if ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth; + if ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap; + if ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin; + if ( json.skinning !== undefined ) material.skinning = json.skinning; + if ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets; + + // for PointsMaterial + + if ( json.size !== undefined ) material.size = json.size; + if ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation; + + // maps + + if ( json.map !== undefined ) material.map = getTexture( json.map ); + + if ( json.alphaMap !== undefined ) { + + material.alphaMap = getTexture( json.alphaMap ); + material.transparent = true; + + } + + if ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap ); + if ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale; + + if ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap ); + if ( json.normalScale !== undefined ) { + + var normalScale = json.normalScale; + + if ( Array.isArray( normalScale ) === false ) { + + // Blender exporter used to export a scalar. See #7459 + + normalScale = [ normalScale, normalScale ]; + + } + + material.normalScale = new Vector2().fromArray( normalScale ); + + } + + if ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap ); + if ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale; + if ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias; + + if ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap ); + if ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap ); + + if ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap ); + if ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity; + + if ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap ); + + if ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap ); + + if ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity; + + if ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap ); + if ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity; + + if ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap ); + if ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity; + + // MultiMaterial + + if ( json.materials !== undefined ) { + + for ( var i = 0, l = json.materials.length; i < l; i ++ ) { + + material.materials.push( this.parse( json.materials[ i ] ) ); + + } + + } + + return material; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function BufferGeometryLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( BufferGeometryLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var loader = new XHRLoader( scope.manager ); + loader.load( url, function ( text ) { + + onLoad( scope.parse( JSON.parse( text ) ) ); + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + var geometry = new BufferGeometry(); + + var index = json.data.index; + + var TYPED_ARRAYS = { + 'Int8Array': Int8Array, + 'Uint8Array': Uint8Array, + 'Uint8ClampedArray': Uint8ClampedArray, + 'Int16Array': Int16Array, + 'Uint16Array': Uint16Array, + 'Int32Array': Int32Array, + 'Uint32Array': Uint32Array, + 'Float32Array': Float32Array, + 'Float64Array': Float64Array + }; + + if ( index !== undefined ) { + + var typedArray = new TYPED_ARRAYS[ index.type ]( index.array ); + geometry.setIndex( new BufferAttribute( typedArray, 1 ) ); + + } + + var attributes = json.data.attributes; + + for ( var key in attributes ) { + + var attribute = attributes[ key ]; + var typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array ); + + geometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) ); + + } + + var groups = json.data.groups || json.data.drawcalls || json.data.offsets; + + if ( groups !== undefined ) { + + for ( var i = 0, n = groups.length; i !== n; ++ i ) { + + var group = groups[ i ]; + + geometry.addGroup( group.start, group.count, group.materialIndex ); + + } + + } + + var boundingSphere = json.data.boundingSphere; + + if ( boundingSphere !== undefined ) { + + var center = new Vector3(); + + if ( boundingSphere.center !== undefined ) { + + center.fromArray( boundingSphere.center ); + + } + + geometry.boundingSphere = new Sphere( center, boundingSphere.radius ); + + } + + return geometry; + + } + + } ); + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function Loader() { + + this.onLoadStart = function () {}; + this.onLoadProgress = function () {}; + this.onLoadComplete = function () {}; + + } + + Loader.prototype = { + + constructor: Loader, + + crossOrigin: undefined, + + extractUrlBase: function ( url ) { + + var parts = url.split( '/' ); + + if ( parts.length === 1 ) return './'; + + parts.pop(); + + return parts.join( '/' ) + '/'; + + }, + + initMaterials: function ( materials, texturePath, crossOrigin ) { + + var array = []; + + for ( var i = 0; i < materials.length; ++ i ) { + + array[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin ); + + } + + return array; + + }, + + createMaterial: ( function () { + + var color, textureLoader, materialLoader; + + return function createMaterial( m, texturePath, crossOrigin ) { + + if ( color === undefined ) color = new Color(); + if ( textureLoader === undefined ) textureLoader = new TextureLoader(); + if ( materialLoader === undefined ) materialLoader = new MaterialLoader(); + + // convert from old material format + + var textures = {}; + + function loadTexture( path, repeat, offset, wrap, anisotropy ) { + + var fullPath = texturePath + path; + var loader = Loader.Handlers.get( fullPath ); + + var texture; + + if ( loader !== null ) { + + texture = loader.load( fullPath ); + + } else { + + textureLoader.setCrossOrigin( crossOrigin ); + texture = textureLoader.load( fullPath ); + + } + + if ( repeat !== undefined ) { + + texture.repeat.fromArray( repeat ); + + if ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping; + if ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping; + + } + + if ( offset !== undefined ) { + + texture.offset.fromArray( offset ); + + } + + if ( wrap !== undefined ) { + + if ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping; + if ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping; + + if ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping; + if ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping; + + } + + if ( anisotropy !== undefined ) { + + texture.anisotropy = anisotropy; + + } + + var uuid = _Math.generateUUID(); + + textures[ uuid ] = texture; + + return uuid; + + } + + // + + var json = { + uuid: _Math.generateUUID(), + type: 'MeshLambertMaterial' + }; + + for ( var name in m ) { + + var value = m[ name ]; + + switch ( name ) { + case 'DbgColor': + case 'DbgIndex': + case 'opticalDensity': + case 'illumination': + break; + case 'DbgName': + json.name = value; + break; + case 'blending': + json.blending = BlendingMode[ value ]; + break; + case 'colorAmbient': + case 'mapAmbient': + console.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' ); + break; + case 'colorDiffuse': + json.color = color.fromArray( value ).getHex(); + break; + case 'colorSpecular': + json.specular = color.fromArray( value ).getHex(); + break; + case 'colorEmissive': + json.emissive = color.fromArray( value ).getHex(); + break; + case 'specularCoef': + json.shininess = value; + break; + case 'shading': + if ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial'; + if ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial'; + if ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial'; + break; + case 'mapDiffuse': + json.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy ); + break; + case 'mapDiffuseRepeat': + case 'mapDiffuseOffset': + case 'mapDiffuseWrap': + case 'mapDiffuseAnisotropy': + break; + case 'mapEmissive': + json.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy ); + break; + case 'mapEmissiveRepeat': + case 'mapEmissiveOffset': + case 'mapEmissiveWrap': + case 'mapEmissiveAnisotropy': + break; + case 'mapLight': + json.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy ); + break; + case 'mapLightRepeat': + case 'mapLightOffset': + case 'mapLightWrap': + case 'mapLightAnisotropy': + break; + case 'mapAO': + json.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy ); + break; + case 'mapAORepeat': + case 'mapAOOffset': + case 'mapAOWrap': + case 'mapAOAnisotropy': + break; + case 'mapBump': + json.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy ); + break; + case 'mapBumpScale': + json.bumpScale = value; + break; + case 'mapBumpRepeat': + case 'mapBumpOffset': + case 'mapBumpWrap': + case 'mapBumpAnisotropy': + break; + case 'mapNormal': + json.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy ); + break; + case 'mapNormalFactor': + json.normalScale = [ value, value ]; + break; + case 'mapNormalRepeat': + case 'mapNormalOffset': + case 'mapNormalWrap': + case 'mapNormalAnisotropy': + break; + case 'mapSpecular': + json.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy ); + break; + case 'mapSpecularRepeat': + case 'mapSpecularOffset': + case 'mapSpecularWrap': + case 'mapSpecularAnisotropy': + break; + case 'mapMetalness': + json.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy ); + break; + case 'mapMetalnessRepeat': + case 'mapMetalnessOffset': + case 'mapMetalnessWrap': + case 'mapMetalnessAnisotropy': + break; + case 'mapRoughness': + json.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy ); + break; + case 'mapRoughnessRepeat': + case 'mapRoughnessOffset': + case 'mapRoughnessWrap': + case 'mapRoughnessAnisotropy': + break; + case 'mapAlpha': + json.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy ); + break; + case 'mapAlphaRepeat': + case 'mapAlphaOffset': + case 'mapAlphaWrap': + case 'mapAlphaAnisotropy': + break; + case 'flipSided': + json.side = BackSide; + break; + case 'doubleSided': + json.side = DoubleSide; + break; + case 'transparency': + console.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' ); + json.opacity = value; + break; + case 'depthTest': + case 'depthWrite': + case 'colorWrite': + case 'opacity': + case 'reflectivity': + case 'transparent': + case 'visible': + case 'wireframe': + json[ name ] = value; + break; + case 'vertexColors': + if ( value === true ) json.vertexColors = VertexColors; + if ( value === 'face' ) json.vertexColors = FaceColors; + break; + default: + console.error( 'THREE.Loader.createMaterial: Unsupported', name, value ); + break; + } + + } + + if ( json.type === 'MeshBasicMaterial' ) delete json.emissive; + if ( json.type !== 'MeshPhongMaterial' ) delete json.specular; + + if ( json.opacity < 1 ) json.transparent = true; + + materialLoader.setTextures( textures ); + + return materialLoader.parse( json ); + + }; + + } )() + + }; + + Loader.Handlers = { + + handlers: [], + + add: function ( regex, loader ) { + + this.handlers.push( regex, loader ); + + }, + + get: function ( file ) { + + var handlers = this.handlers; + + for ( var i = 0, l = handlers.length; i < l; i += 2 ) { + + var regex = handlers[ i ]; + var loader = handlers[ i + 1 ]; + + if ( regex.test( file ) ) { + + return loader; + + } + + } + + return null; + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function JSONLoader( manager ) { + + if ( typeof manager === 'boolean' ) { + + console.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' ); + manager = undefined; + + } + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + this.withCredentials = false; + + } + + Object.assign( JSONLoader.prototype, { + + load: function( url, onLoad, onProgress, onError ) { + + var scope = this; + + var texturePath = this.texturePath && ( typeof this.texturePath === "string" ) ? this.texturePath : Loader.prototype.extractUrlBase( url ); + + var loader = new XHRLoader( this.manager ); + loader.setWithCredentials( this.withCredentials ); + loader.load( url, function ( text ) { + + var json = JSON.parse( text ); + var metadata = json.metadata; + + if ( metadata !== undefined ) { + + var type = metadata.type; + + if ( type !== undefined ) { + + if ( type.toLowerCase() === 'object' ) { + + console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' ); + return; + + } + + if ( type.toLowerCase() === 'scene' ) { + + console.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' ); + return; + + } + + } + + } + + var object = scope.parse( json, texturePath ); + onLoad( object.geometry, object.materials ); + + }, onProgress, onError ); + + }, + + setTexturePath: function ( value ) { + + this.texturePath = value; + + }, + + parse: function ( json, texturePath ) { + + var geometry = new Geometry(), + scale = ( json.scale !== undefined ) ? 1.0 / json.scale : 1.0; + + parseModel( scale ); + + parseSkin(); + parseMorphing( scale ); + parseAnimations(); + + geometry.computeFaceNormals(); + geometry.computeBoundingSphere(); + + function parseModel( scale ) { + + function isBitSet( value, position ) { + + return value & ( 1 << position ); + + } + + var i, j, fi, + + offset, zLength, + + colorIndex, normalIndex, uvIndex, materialIndex, + + type, + isQuad, + hasMaterial, + hasFaceVertexUv, + hasFaceNormal, hasFaceVertexNormal, + hasFaceColor, hasFaceVertexColor, + + vertex, face, faceA, faceB, hex, normal, + + uvLayer, uv, u, v, + + faces = json.faces, + vertices = json.vertices, + normals = json.normals, + colors = json.colors, + + nUvLayers = 0; + + if ( json.uvs !== undefined ) { + + // disregard empty arrays + + for ( i = 0; i < json.uvs.length; i ++ ) { + + if ( json.uvs[ i ].length ) nUvLayers ++; + + } + + for ( i = 0; i < nUvLayers; i ++ ) { + + geometry.faceVertexUvs[ i ] = []; + + } + + } + + offset = 0; + zLength = vertices.length; + + while ( offset < zLength ) { + + vertex = new Vector3(); + + vertex.x = vertices[ offset ++ ] * scale; + vertex.y = vertices[ offset ++ ] * scale; + vertex.z = vertices[ offset ++ ] * scale; + + geometry.vertices.push( vertex ); + + } + + offset = 0; + zLength = faces.length; + + while ( offset < zLength ) { + + type = faces[ offset ++ ]; + + + isQuad = isBitSet( type, 0 ); + hasMaterial = isBitSet( type, 1 ); + hasFaceVertexUv = isBitSet( type, 3 ); + hasFaceNormal = isBitSet( type, 4 ); + hasFaceVertexNormal = isBitSet( type, 5 ); + hasFaceColor = isBitSet( type, 6 ); + hasFaceVertexColor = isBitSet( type, 7 ); + + // console.log("type", type, "bits", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor); + + if ( isQuad ) { + + faceA = new Face3(); + faceA.a = faces[ offset ]; + faceA.b = faces[ offset + 1 ]; + faceA.c = faces[ offset + 3 ]; + + faceB = new Face3(); + faceB.a = faces[ offset + 1 ]; + faceB.b = faces[ offset + 2 ]; + faceB.c = faces[ offset + 3 ]; + + offset += 4; + + if ( hasMaterial ) { + + materialIndex = faces[ offset ++ ]; + faceA.materialIndex = materialIndex; + faceB.materialIndex = materialIndex; + + } + + // to get face <=> uv index correspondence + + fi = geometry.faces.length; + + if ( hasFaceVertexUv ) { + + for ( i = 0; i < nUvLayers; i ++ ) { + + uvLayer = json.uvs[ i ]; + + geometry.faceVertexUvs[ i ][ fi ] = []; + geometry.faceVertexUvs[ i ][ fi + 1 ] = []; + + for ( j = 0; j < 4; j ++ ) { + + uvIndex = faces[ offset ++ ]; + + u = uvLayer[ uvIndex * 2 ]; + v = uvLayer[ uvIndex * 2 + 1 ]; + + uv = new Vector2( u, v ); + + if ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv ); + if ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv ); + + } + + } + + } + + if ( hasFaceNormal ) { + + normalIndex = faces[ offset ++ ] * 3; + + faceA.normal.set( + normals[ normalIndex ++ ], + normals[ normalIndex ++ ], + normals[ normalIndex ] + ); + + faceB.normal.copy( faceA.normal ); + + } + + if ( hasFaceVertexNormal ) { + + for ( i = 0; i < 4; i ++ ) { + + normalIndex = faces[ offset ++ ] * 3; + + normal = new Vector3( + normals[ normalIndex ++ ], + normals[ normalIndex ++ ], + normals[ normalIndex ] + ); + + + if ( i !== 2 ) faceA.vertexNormals.push( normal ); + if ( i !== 0 ) faceB.vertexNormals.push( normal ); + + } + + } + + + if ( hasFaceColor ) { + + colorIndex = faces[ offset ++ ]; + hex = colors[ colorIndex ]; + + faceA.color.setHex( hex ); + faceB.color.setHex( hex ); + + } + + + if ( hasFaceVertexColor ) { + + for ( i = 0; i < 4; i ++ ) { + + colorIndex = faces[ offset ++ ]; + hex = colors[ colorIndex ]; + + if ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) ); + if ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) ); + + } + + } + + geometry.faces.push( faceA ); + geometry.faces.push( faceB ); + + } else { + + face = new Face3(); + face.a = faces[ offset ++ ]; + face.b = faces[ offset ++ ]; + face.c = faces[ offset ++ ]; + + if ( hasMaterial ) { + + materialIndex = faces[ offset ++ ]; + face.materialIndex = materialIndex; + + } + + // to get face <=> uv index correspondence + + fi = geometry.faces.length; + + if ( hasFaceVertexUv ) { + + for ( i = 0; i < nUvLayers; i ++ ) { + + uvLayer = json.uvs[ i ]; + + geometry.faceVertexUvs[ i ][ fi ] = []; + + for ( j = 0; j < 3; j ++ ) { + + uvIndex = faces[ offset ++ ]; + + u = uvLayer[ uvIndex * 2 ]; + v = uvLayer[ uvIndex * 2 + 1 ]; + + uv = new Vector2( u, v ); + + geometry.faceVertexUvs[ i ][ fi ].push( uv ); + + } + + } + + } + + if ( hasFaceNormal ) { + + normalIndex = faces[ offset ++ ] * 3; + + face.normal.set( + normals[ normalIndex ++ ], + normals[ normalIndex ++ ], + normals[ normalIndex ] + ); + + } + + if ( hasFaceVertexNormal ) { + + for ( i = 0; i < 3; i ++ ) { + + normalIndex = faces[ offset ++ ] * 3; + + normal = new Vector3( + normals[ normalIndex ++ ], + normals[ normalIndex ++ ], + normals[ normalIndex ] + ); + + face.vertexNormals.push( normal ); + + } + + } + + + if ( hasFaceColor ) { + + colorIndex = faces[ offset ++ ]; + face.color.setHex( colors[ colorIndex ] ); + + } + + + if ( hasFaceVertexColor ) { + + for ( i = 0; i < 3; i ++ ) { + + colorIndex = faces[ offset ++ ]; + face.vertexColors.push( new Color( colors[ colorIndex ] ) ); + + } + + } + + geometry.faces.push( face ); + + } + + } + + } + + function parseSkin() { + + var influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2; + + if ( json.skinWeights ) { + + for ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) { + + var x = json.skinWeights[ i ]; + var y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0; + var z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0; + var w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0; + + geometry.skinWeights.push( new Vector4( x, y, z, w ) ); + + } + + } + + if ( json.skinIndices ) { + + for ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) { + + var a = json.skinIndices[ i ]; + var b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0; + var c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0; + var d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0; + + geometry.skinIndices.push( new Vector4( a, b, c, d ) ); + + } + + } + + geometry.bones = json.bones; + + if ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) { + + console.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' + + geometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' ); + + } + + } + + function parseMorphing( scale ) { + + if ( json.morphTargets !== undefined ) { + + for ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) { + + geometry.morphTargets[ i ] = {}; + geometry.morphTargets[ i ].name = json.morphTargets[ i ].name; + geometry.morphTargets[ i ].vertices = []; + + var dstVertices = geometry.morphTargets[ i ].vertices; + var srcVertices = json.morphTargets[ i ].vertices; + + for ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) { + + var vertex = new Vector3(); + vertex.x = srcVertices[ v ] * scale; + vertex.y = srcVertices[ v + 1 ] * scale; + vertex.z = srcVertices[ v + 2 ] * scale; + + dstVertices.push( vertex ); + + } + + } + + } + + if ( json.morphColors !== undefined && json.morphColors.length > 0 ) { + + console.warn( 'THREE.JSONLoader: "morphColors" no longer supported. Using them as face colors.' ); + + var faces = geometry.faces; + var morphColors = json.morphColors[ 0 ].colors; + + for ( var i = 0, l = faces.length; i < l; i ++ ) { + + faces[ i ].color.fromArray( morphColors, i * 3 ); + + } + + } + + } + + function parseAnimations() { + + var outputAnimations = []; + + // parse old style Bone/Hierarchy animations + var animations = []; + + if ( json.animation !== undefined ) { + + animations.push( json.animation ); + + } + + if ( json.animations !== undefined ) { + + if ( json.animations.length ) { + + animations = animations.concat( json.animations ); + + } else { + + animations.push( json.animations ); + + } + + } + + for ( var i = 0; i < animations.length; i ++ ) { + + var clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones ); + if ( clip ) outputAnimations.push( clip ); + + } + + // parse implicit morph animations + if ( geometry.morphTargets ) { + + // TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary. + var morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 ); + outputAnimations = outputAnimations.concat( morphAnimationClips ); + + } + + if ( outputAnimations.length > 0 ) geometry.animations = outputAnimations; + + } + + if ( json.materials === undefined || json.materials.length === 0 ) { + + return { geometry: geometry }; + + } else { + + var materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin ); + + return { geometry: geometry, materials: materials }; + + } + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function ObjectLoader ( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + this.texturePath = ''; + + } + + Object.assign( ObjectLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + if ( this.texturePath === '' ) { + + this.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 ); + + } + + var scope = this; + + var loader = new XHRLoader( scope.manager ); + loader.load( url, function ( text ) { + + scope.parse( JSON.parse( text ), onLoad ); + + }, onProgress, onError ); + + }, + + setTexturePath: function ( value ) { + + this.texturePath = value; + + }, + + setCrossOrigin: function ( value ) { + + this.crossOrigin = value; + + }, + + parse: function ( json, onLoad ) { + + var geometries = this.parseGeometries( json.geometries ); + + var images = this.parseImages( json.images, function () { + + if ( onLoad !== undefined ) onLoad( object ); + + } ); + + var textures = this.parseTextures( json.textures, images ); + var materials = this.parseMaterials( json.materials, textures ); + + var object = this.parseObject( json.object, geometries, materials ); + + if ( json.animations ) { + + object.animations = this.parseAnimations( json.animations ); + + } + + if ( json.images === undefined || json.images.length === 0 ) { + + if ( onLoad !== undefined ) onLoad( object ); + + } + + return object; + + }, + + parseGeometries: function ( json ) { + + var geometries = {}; + + if ( json !== undefined ) { + + var geometryLoader = new JSONLoader(); + var bufferGeometryLoader = new BufferGeometryLoader(); + + for ( var i = 0, l = json.length; i < l; i ++ ) { + + var geometry; + var data = json[ i ]; + + switch ( data.type ) { + + case 'PlaneGeometry': + case 'PlaneBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.width, + data.height, + data.widthSegments, + data.heightSegments + ); + + break; + + case 'BoxGeometry': + case 'BoxBufferGeometry': + case 'CubeGeometry': // backwards compatible + + geometry = new Geometries[ data.type ]( + data.width, + data.height, + data.depth, + data.widthSegments, + data.heightSegments, + data.depthSegments + ); + + break; + + case 'CircleGeometry': + case 'CircleBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.segments, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'CylinderGeometry': + case 'CylinderBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radiusTop, + data.radiusBottom, + data.height, + data.radialSegments, + data.heightSegments, + data.openEnded, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'ConeGeometry': + case 'ConeBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.height, + data.radialSegments, + data.heightSegments, + data.openEnded, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'SphereGeometry': + case 'SphereBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.widthSegments, + data.heightSegments, + data.phiStart, + data.phiLength, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'DodecahedronGeometry': + case 'IcosahedronGeometry': + case 'OctahedronGeometry': + case 'TetrahedronGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.detail + ); + + break; + + case 'RingGeometry': + case 'RingBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.innerRadius, + data.outerRadius, + data.thetaSegments, + data.phiSegments, + data.thetaStart, + data.thetaLength + ); + + break; + + case 'TorusGeometry': + case 'TorusBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.tube, + data.radialSegments, + data.tubularSegments, + data.arc + ); + + break; + + case 'TorusKnotGeometry': + case 'TorusKnotBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.radius, + data.tube, + data.tubularSegments, + data.radialSegments, + data.p, + data.q + ); + + break; + + case 'LatheGeometry': + case 'LatheBufferGeometry': + + geometry = new Geometries[ data.type ]( + data.points, + data.segments, + data.phiStart, + data.phiLength + ); + + break; + + case 'BufferGeometry': + + geometry = bufferGeometryLoader.parse( data ); + + break; + + case 'Geometry': + + geometry = geometryLoader.parse( data.data, this.texturePath ).geometry; + + break; + + default: + + console.warn( 'THREE.ObjectLoader: Unsupported geometry type "' + data.type + '"' ); + + continue; + + } + + geometry.uuid = data.uuid; + + if ( data.name !== undefined ) geometry.name = data.name; + + geometries[ data.uuid ] = geometry; + + } + + } + + return geometries; + + }, + + parseMaterials: function ( json, textures ) { + + var materials = {}; + + if ( json !== undefined ) { + + var loader = new MaterialLoader(); + loader.setTextures( textures ); + + for ( var i = 0, l = json.length; i < l; i ++ ) { + + var material = loader.parse( json[ i ] ); + materials[ material.uuid ] = material; + + } + + } + + return materials; + + }, + + parseAnimations: function ( json ) { + + var animations = []; + + for ( var i = 0; i < json.length; i ++ ) { + + var clip = AnimationClip.parse( json[ i ] ); + + animations.push( clip ); + + } + + return animations; + + }, + + parseImages: function ( json, onLoad ) { + + var scope = this; + var images = {}; + + function loadImage( url ) { + + scope.manager.itemStart( url ); + + return loader.load( url, function () { + + scope.manager.itemEnd( url ); + + }, undefined, function () { + + scope.manager.itemError( url ); + + } ); + + } + + if ( json !== undefined && json.length > 0 ) { + + var manager = new LoadingManager( onLoad ); + + var loader = new ImageLoader( manager ); + loader.setCrossOrigin( this.crossOrigin ); + + for ( var i = 0, l = json.length; i < l; i ++ ) { + + var image = json[ i ]; + var path = /^(\/\/)|([a-z]+:(\/\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url; + + images[ image.uuid ] = loadImage( path ); + + } + + } + + return images; + + }, + + parseTextures: function ( json, images ) { + + function parseConstant( value, type ) { + + if ( typeof( value ) === 'number' ) return value; + + console.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value ); + + return type[ value ]; + + } + + var textures = {}; + + if ( json !== undefined ) { + + for ( var i = 0, l = json.length; i < l; i ++ ) { + + var data = json[ i ]; + + if ( data.image === undefined ) { + + console.warn( 'THREE.ObjectLoader: No "image" specified for', data.uuid ); + + } + + if ( images[ data.image ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined image', data.image ); + + } + + var texture = new Texture( images[ data.image ] ); + texture.needsUpdate = true; + + texture.uuid = data.uuid; + + if ( data.name !== undefined ) texture.name = data.name; + + if ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TextureMapping ); + + if ( data.offset !== undefined ) texture.offset.fromArray( data.offset ); + if ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat ); + if ( data.wrap !== undefined ) { + + texture.wrapS = parseConstant( data.wrap[ 0 ], TextureWrapping ); + texture.wrapT = parseConstant( data.wrap[ 1 ], TextureWrapping ); + + } + + if ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TextureFilter ); + if ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TextureFilter ); + if ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy; + + if ( data.flipY !== undefined ) texture.flipY = data.flipY; + + textures[ data.uuid ] = texture; + + } + + } + + return textures; + + }, + + parseObject: function () { + + var matrix = new Matrix4(); + + return function parseObject( data, geometries, materials ) { + + var object; + + function getGeometry( name ) { + + if ( geometries[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined geometry', name ); + + } + + return geometries[ name ]; + + } + + function getMaterial( name ) { + + if ( name === undefined ) return undefined; + + if ( materials[ name ] === undefined ) { + + console.warn( 'THREE.ObjectLoader: Undefined material', name ); + + } + + return materials[ name ]; + + } + + switch ( data.type ) { + + case 'Scene': + + object = new Scene(); + + if ( data.background !== undefined ) { + + if ( Number.isInteger( data.background ) ) { + + object.background = new Color( data.background ); + + } + + } + + if ( data.fog !== undefined ) { + + if ( data.fog.type === 'Fog' ) { + + object.fog = new Fog( data.fog.color, data.fog.near, data.fog.far ); + + } else if ( data.fog.type === 'FogExp2' ) { + + object.fog = new FogExp2( data.fog.color, data.fog.density ); + + } + + } + + break; + + case 'PerspectiveCamera': + + object = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far ); + + if ( data.focus !== undefined ) object.focus = data.focus; + if ( data.zoom !== undefined ) object.zoom = data.zoom; + if ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge; + if ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset; + if ( data.view !== undefined ) object.view = Object.assign( {}, data.view ); + + break; + + case 'OrthographicCamera': + + object = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far ); + + break; + + case 'AmbientLight': + + object = new AmbientLight( data.color, data.intensity ); + + break; + + case 'DirectionalLight': + + object = new DirectionalLight( data.color, data.intensity ); + + break; + + case 'PointLight': + + object = new PointLight( data.color, data.intensity, data.distance, data.decay ); + + break; + + case 'SpotLight': + + object = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay ); + + break; + + case 'HemisphereLight': + + object = new HemisphereLight( data.color, data.groundColor, data.intensity ); + + break; + + case 'Mesh': + + var geometry = getGeometry( data.geometry ); + var material = getMaterial( data.material ); + + if ( geometry.bones && geometry.bones.length > 0 ) { + + object = new SkinnedMesh( geometry, material ); + + } else { + + object = new Mesh( geometry, material ); + + } + + break; + + case 'LOD': + + object = new LOD(); + + break; + + case 'Line': + + object = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode ); + + break; + + case 'LineSegments': + + object = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'PointCloud': + case 'Points': + + object = new Points( getGeometry( data.geometry ), getMaterial( data.material ) ); + + break; + + case 'Sprite': + + object = new Sprite( getMaterial( data.material ) ); + + break; + + case 'Group': + + object = new Group(); + + break; + + default: + + object = new Object3D(); + + } + + object.uuid = data.uuid; + + if ( data.name !== undefined ) object.name = data.name; + if ( data.matrix !== undefined ) { + + matrix.fromArray( data.matrix ); + matrix.decompose( object.position, object.quaternion, object.scale ); + + } else { + + if ( data.position !== undefined ) object.position.fromArray( data.position ); + if ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation ); + if ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion ); + if ( data.scale !== undefined ) object.scale.fromArray( data.scale ); + + } + + if ( data.castShadow !== undefined ) object.castShadow = data.castShadow; + if ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow; + + if ( data.shadow ) { + + if ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias; + if ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius; + if ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize ); + if ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera ); + + } + + if ( data.visible !== undefined ) object.visible = data.visible; + if ( data.userData !== undefined ) object.userData = data.userData; + + if ( data.children !== undefined ) { + + for ( var child in data.children ) { + + object.add( this.parseObject( data.children[ child ], geometries, materials ) ); + + } + + } + + if ( data.type === 'LOD' ) { + + var levels = data.levels; + + for ( var l = 0; l < levels.length; l ++ ) { + + var level = levels[ l ]; + var child = object.getObjectByProperty( 'uuid', level.object ); + + if ( child !== undefined ) { + + object.addLevel( child, level.distance ); + + } + + } + + } + + return object; + + }; + + }() + + } ); + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * Extensible curve object + * + * Some common of Curve methods + * .getPoint(t), getTangent(t) + * .getPointAt(u), getTangentAt(u) + * .getPoints(), .getSpacedPoints() + * .getLength() + * .updateArcLengths() + * + * This following classes subclasses THREE.Curve: + * + * -- 2d classes -- + * THREE.LineCurve + * THREE.QuadraticBezierCurve + * THREE.CubicBezierCurve + * THREE.SplineCurve + * THREE.ArcCurve + * THREE.EllipseCurve + * + * -- 3d classes -- + * THREE.LineCurve3 + * THREE.QuadraticBezierCurve3 + * THREE.CubicBezierCurve3 + * THREE.SplineCurve3 + * + * A series of curves can be represented as a THREE.CurvePath + * + **/ + + /************************************************************** + * Abstract Curve base class + **************************************************************/ + + function Curve() {} + + Curve.prototype = { + + constructor: Curve, + + // Virtual base class method to overwrite and implement in subclasses + // - t [0 .. 1] + + getPoint: function ( t ) { + + console.warn( "THREE.Curve: Warning, getPoint() not implemented!" ); + return null; + + }, + + // Get point at relative position in curve according to arc length + // - u [0 .. 1] + + getPointAt: function ( u ) { + + var t = this.getUtoTmapping( u ); + return this.getPoint( t ); + + }, + + // Get sequence of points using getPoint( t ) + + getPoints: function ( divisions ) { + + if ( ! divisions ) divisions = 5; + + var points = []; + + for ( var d = 0; d <= divisions; d ++ ) { + + points.push( this.getPoint( d / divisions ) ); + + } + + return points; + + }, + + // Get sequence of points using getPointAt( u ) + + getSpacedPoints: function ( divisions ) { + + if ( ! divisions ) divisions = 5; + + var points = []; + + for ( var d = 0; d <= divisions; d ++ ) { + + points.push( this.getPointAt( d / divisions ) ); + + } + + return points; + + }, + + // Get total curve arc length + + getLength: function () { + + var lengths = this.getLengths(); + return lengths[ lengths.length - 1 ]; + + }, + + // Get list of cumulative segment lengths + + getLengths: function ( divisions ) { + + if ( ! divisions ) divisions = ( this.__arcLengthDivisions ) ? ( this.__arcLengthDivisions ) : 200; + + if ( this.cacheArcLengths + && ( this.cacheArcLengths.length === divisions + 1 ) + && ! this.needsUpdate ) { + + //console.log( "cached", this.cacheArcLengths ); + return this.cacheArcLengths; + + } + + this.needsUpdate = false; + + var cache = []; + var current, last = this.getPoint( 0 ); + var p, sum = 0; + + cache.push( 0 ); + + for ( p = 1; p <= divisions; p ++ ) { + + current = this.getPoint ( p / divisions ); + sum += current.distanceTo( last ); + cache.push( sum ); + last = current; + + } + + this.cacheArcLengths = cache; + + return cache; // { sums: cache, sum:sum }; Sum is in the last element. + + }, + + updateArcLengths: function() { + + this.needsUpdate = true; + this.getLengths(); + + }, + + // Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant + + getUtoTmapping: function ( u, distance ) { + + var arcLengths = this.getLengths(); + + var i = 0, il = arcLengths.length; + + var targetArcLength; // The targeted u distance value to get + + if ( distance ) { + + targetArcLength = distance; + + } else { + + targetArcLength = u * arcLengths[ il - 1 ]; + + } + + //var time = Date.now(); + + // binary search for the index with largest value smaller than target u distance + + var low = 0, high = il - 1, comparison; + + while ( low <= high ) { + + i = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats + + comparison = arcLengths[ i ] - targetArcLength; + + if ( comparison < 0 ) { + + low = i + 1; + + } else if ( comparison > 0 ) { + + high = i - 1; + + } else { + + high = i; + break; + + // DONE + + } + + } + + i = high; + + //console.log('b' , i, low, high, Date.now()- time); + + if ( arcLengths[ i ] === targetArcLength ) { + + var t = i / ( il - 1 ); + return t; + + } + + // we could get finer grain at lengths, or use simple interpolation between two points + + var lengthBefore = arcLengths[ i ]; + var lengthAfter = arcLengths[ i + 1 ]; + + var segmentLength = lengthAfter - lengthBefore; + + // determine where we are between the 'before' and 'after' points + + var segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength; + + // add that fractional amount to t + + var t = ( i + segmentFraction ) / ( il - 1 ); + + return t; + + }, + + // Returns a unit vector tangent at t + // In case any sub curve does not implement its tangent derivation, + // 2 points a small delta apart will be used to find its gradient + // which seems to give a reasonable approximation + + getTangent: function( t ) { + + var delta = 0.0001; + var t1 = t - delta; + var t2 = t + delta; + + // Capping in case of danger + + if ( t1 < 0 ) t1 = 0; + if ( t2 > 1 ) t2 = 1; + + var pt1 = this.getPoint( t1 ); + var pt2 = this.getPoint( t2 ); + + var vec = pt2.clone().sub( pt1 ); + return vec.normalize(); + + }, + + getTangentAt: function ( u ) { + + var t = this.getUtoTmapping( u ); + return this.getTangent( t ); + + }, + + computeFrenetFrames: function ( segments, closed ) { + + // see http://www.cs.indiana.edu/pub/techreports/TR425.pdf + + var normal = new Vector3(); + + var tangents = []; + var normals = []; + var binormals = []; + + var vec = new Vector3(); + var mat = new Matrix4(); + + var i, u, theta; + + // compute the tangent vectors for each segment on the curve + + for ( i = 0; i <= segments; i ++ ) { + + u = i / segments; + + tangents[ i ] = this.getTangentAt( u ); + tangents[ i ].normalize(); + + } + + // select an initial normal vector perpendicular to the first tangent vector, + // and in the direction of the minimum tangent xyz component + + normals[ 0 ] = new Vector3(); + binormals[ 0 ] = new Vector3(); + var min = Number.MAX_VALUE; + var tx = Math.abs( tangents[ 0 ].x ); + var ty = Math.abs( tangents[ 0 ].y ); + var tz = Math.abs( tangents[ 0 ].z ); + + if ( tx <= min ) { + + min = tx; + normal.set( 1, 0, 0 ); + + } + + if ( ty <= min ) { + + min = ty; + normal.set( 0, 1, 0 ); + + } + + if ( tz <= min ) { + + normal.set( 0, 0, 1 ); + + } + + vec.crossVectors( tangents[ 0 ], normal ).normalize(); + + normals[ 0 ].crossVectors( tangents[ 0 ], vec ); + binormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] ); + + + // compute the slowly-varying normal and binormal vectors for each segment on the curve + + for ( i = 1; i <= segments; i ++ ) { + + normals[ i ] = normals[ i - 1 ].clone(); + + binormals[ i ] = binormals[ i - 1 ].clone(); + + vec.crossVectors( tangents[ i - 1 ], tangents[ i ] ); + + if ( vec.length() > Number.EPSILON ) { + + vec.normalize(); + + theta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors + + normals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) ); + + } + + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + // if the curve is closed, postprocess the vectors so the first and last normal vectors are the same + + if ( closed === true ) { + + theta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) ); + theta /= segments; + + if ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) { + + theta = - theta; + + } + + for ( i = 1; i <= segments; i ++ ) { + + // twist a little... + normals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) ); + binormals[ i ].crossVectors( tangents[ i ], normals[ i ] ); + + } + + } + + return { + tangents: tangents, + normals: normals, + binormals: binormals + }; + + } + + }; + + // TODO: Transformation for Curves? + + /************************************************************** + * 3D Curves + **************************************************************/ + + // A Factory method for creating new curve subclasses + + Curve.create = function ( constructor, getPointFunc ) { + + constructor.prototype = Object.create( Curve.prototype ); + constructor.prototype.constructor = constructor; + constructor.prototype.getPoint = getPointFunc; + + return constructor; + + }; + + /************************************************************** + * Line + **************************************************************/ + + function LineCurve( v1, v2 ) { + + this.v1 = v1; + this.v2 = v2; + + } + + LineCurve.prototype = Object.create( Curve.prototype ); + LineCurve.prototype.constructor = LineCurve; + + LineCurve.prototype.isLineCurve = true; + + LineCurve.prototype.getPoint = function ( t ) { + + if ( t === 1 ) { + + return this.v2.clone(); + + } + + var point = this.v2.clone().sub( this.v1 ); + point.multiplyScalar( t ).add( this.v1 ); + + return point; + + }; + + // Line curve is linear, so we can overwrite default getPointAt + + LineCurve.prototype.getPointAt = function ( u ) { + + return this.getPoint( u ); + + }; + + LineCurve.prototype.getTangent = function( t ) { + + var tangent = this.v2.clone().sub( this.v1 ); + + return tangent.normalize(); + + }; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * + **/ + + /************************************************************** + * Curved Path - a curve path is simply a array of connected + * curves, but retains the api of a curve + **************************************************************/ + + function CurvePath() { + + this.curves = []; + + this.autoClose = false; // Automatically closes the path + + } + + CurvePath.prototype = Object.assign( Object.create( Curve.prototype ), { + + constructor: CurvePath, + + add: function ( curve ) { + + this.curves.push( curve ); + + }, + + closePath: function () { + + // Add a line curve if start and end of lines are not connected + var startPoint = this.curves[ 0 ].getPoint( 0 ); + var endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 ); + + if ( ! startPoint.equals( endPoint ) ) { + + this.curves.push( new LineCurve( endPoint, startPoint ) ); + + } + + }, + + // To get accurate point with reference to + // entire path distance at time t, + // following has to be done: + + // 1. Length of each sub path have to be known + // 2. Locate and identify type of curve + // 3. Get t for the curve + // 4. Return curve.getPointAt(t') + + getPoint: function ( t ) { + + var d = t * this.getLength(); + var curveLengths = this.getCurveLengths(); + var i = 0; + + // To think about boundaries points. + + while ( i < curveLengths.length ) { + + if ( curveLengths[ i ] >= d ) { + + var diff = curveLengths[ i ] - d; + var curve = this.curves[ i ]; + + var segmentLength = curve.getLength(); + var u = segmentLength === 0 ? 0 : 1 - diff / segmentLength; + + return curve.getPointAt( u ); + + } + + i ++; + + } + + return null; + + // loop where sum != 0, sum > d , sum+1 1 && !points[ points.length - 1 ].equals( points[ 0 ] ) ) { + + points.push( points[ 0 ] ); + + } + + return points; + + }, + + /************************************************************** + * Create Geometries Helpers + **************************************************************/ + + /// Generate geometry from path points (for Line or Points objects) + + createPointsGeometry: function ( divisions ) { + + var pts = this.getPoints( divisions ); + return this.createGeometry( pts ); + + }, + + // Generate geometry from equidistant sampling along the path + + createSpacedPointsGeometry: function ( divisions ) { + + var pts = this.getSpacedPoints( divisions ); + return this.createGeometry( pts ); + + }, + + createGeometry: function ( points ) { + + var geometry = new Geometry(); + + for ( var i = 0, l = points.length; i < l; i ++ ) { + + var point = points[ i ]; + geometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) ); + + } + + return geometry; + + } + + } ); + + /************************************************************** + * Ellipse curve + **************************************************************/ + + function EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + this.aX = aX; + this.aY = aY; + + this.xRadius = xRadius; + this.yRadius = yRadius; + + this.aStartAngle = aStartAngle; + this.aEndAngle = aEndAngle; + + this.aClockwise = aClockwise; + + this.aRotation = aRotation || 0; + + } + + EllipseCurve.prototype = Object.create( Curve.prototype ); + EllipseCurve.prototype.constructor = EllipseCurve; + + EllipseCurve.prototype.isEllipseCurve = true; + + EllipseCurve.prototype.getPoint = function( t ) { + + var twoPi = Math.PI * 2; + var deltaAngle = this.aEndAngle - this.aStartAngle; + var samePoints = Math.abs( deltaAngle ) < Number.EPSILON; + + // ensures that deltaAngle is 0 .. 2 PI + while ( deltaAngle < 0 ) deltaAngle += twoPi; + while ( deltaAngle > twoPi ) deltaAngle -= twoPi; + + if ( deltaAngle < Number.EPSILON ) { + + if ( samePoints ) { + + deltaAngle = 0; + + } else { + + deltaAngle = twoPi; + + } + + } + + if ( this.aClockwise === true && ! samePoints ) { + + if ( deltaAngle === twoPi ) { + + deltaAngle = - twoPi; + + } else { + + deltaAngle = deltaAngle - twoPi; + + } + + } + + var angle = this.aStartAngle + t * deltaAngle; + var x = this.aX + this.xRadius * Math.cos( angle ); + var y = this.aY + this.yRadius * Math.sin( angle ); + + if ( this.aRotation !== 0 ) { + + var cos = Math.cos( this.aRotation ); + var sin = Math.sin( this.aRotation ); + + var tx = x - this.aX; + var ty = y - this.aY; + + // Rotate the point about the center of the ellipse. + x = tx * cos - ty * sin + this.aX; + y = tx * sin + ty * cos + this.aY; + + } + + return new Vector2( x, y ); + + }; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + */ + + var CurveUtils = { + + tangentQuadraticBezier: function ( t, p0, p1, p2 ) { + + return 2 * ( 1 - t ) * ( p1 - p0 ) + 2 * t * ( p2 - p1 ); + + }, + + // Puay Bing, thanks for helping with this derivative! + + tangentCubicBezier: function ( t, p0, p1, p2, p3 ) { + + return - 3 * p0 * ( 1 - t ) * ( 1 - t ) + + 3 * p1 * ( 1 - t ) * ( 1 - t ) - 6 * t * p1 * ( 1 - t ) + + 6 * t * p2 * ( 1 - t ) - 3 * t * t * p2 + + 3 * t * t * p3; + + }, + + tangentSpline: function ( t, p0, p1, p2, p3 ) { + + // To check if my formulas are correct + + var h00 = 6 * t * t - 6 * t; // derived from 2t^3 − 3t^2 + 1 + var h10 = 3 * t * t - 4 * t + 1; // t^3 − 2t^2 + t + var h01 = - 6 * t * t + 6 * t; // − 2t3 + 3t2 + var h11 = 3 * t * t - 2 * t; // t3 − t2 + + return h00 + h10 + h01 + h11; + + }, + + // Catmull-Rom + + interpolate: function( p0, p1, p2, p3, t ) { + + var v0 = ( p2 - p0 ) * 0.5; + var v1 = ( p3 - p1 ) * 0.5; + var t2 = t * t; + var t3 = t * t2; + return ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1; + + } + + }; + + /************************************************************** + * Spline curve + **************************************************************/ + + function SplineCurve( points /* array of Vector2 */ ) { + + this.points = ( points === undefined ) ? [] : points; + + } + + SplineCurve.prototype = Object.create( Curve.prototype ); + SplineCurve.prototype.constructor = SplineCurve; + + SplineCurve.prototype.isSplineCurve = true; + + SplineCurve.prototype.getPoint = function ( t ) { + + var points = this.points; + var point = ( points.length - 1 ) * t; + + var intPoint = Math.floor( point ); + var weight = point - intPoint; + + var point0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ]; + var point1 = points[ intPoint ]; + var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ]; + var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ]; + + var interpolate = CurveUtils.interpolate; + + return new Vector2( + interpolate( point0.x, point1.x, point2.x, point3.x, weight ), + interpolate( point0.y, point1.y, point2.y, point3.y, weight ) + ); + + }; + + /************************************************************** + * Cubic Bezier curve + **************************************************************/ + + function CubicBezierCurve( v0, v1, v2, v3 ) { + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + + } + + CubicBezierCurve.prototype = Object.create( Curve.prototype ); + CubicBezierCurve.prototype.constructor = CubicBezierCurve; + + CubicBezierCurve.prototype.getPoint = function ( t ) { + + var b3 = ShapeUtils.b3; + + return new Vector2( + b3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ), + b3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y ) + ); + + }; + + CubicBezierCurve.prototype.getTangent = function( t ) { + + var tangentCubicBezier = CurveUtils.tangentCubicBezier; + + return new Vector2( + tangentCubicBezier( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ), + tangentCubicBezier( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y ) + ).normalize(); + + }; + + /************************************************************** + * Quadratic Bezier curve + **************************************************************/ + + + function QuadraticBezierCurve( v0, v1, v2 ) { + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + + } + + QuadraticBezierCurve.prototype = Object.create( Curve.prototype ); + QuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve; + + + QuadraticBezierCurve.prototype.getPoint = function ( t ) { + + var b2 = ShapeUtils.b2; + + return new Vector2( + b2( t, this.v0.x, this.v1.x, this.v2.x ), + b2( t, this.v0.y, this.v1.y, this.v2.y ) + ); + + }; + + + QuadraticBezierCurve.prototype.getTangent = function( t ) { + + var tangentQuadraticBezier = CurveUtils.tangentQuadraticBezier; + + return new Vector2( + tangentQuadraticBezier( t, this.v0.x, this.v1.x, this.v2.x ), + tangentQuadraticBezier( t, this.v0.y, this.v1.y, this.v2.y ) + ).normalize(); + + }; + + var PathPrototype = Object.assign( Object.create( CurvePath.prototype ), { + + fromPoints: function ( vectors ) { + + this.moveTo( vectors[ 0 ].x, vectors[ 0 ].y ); + + for ( var i = 1, l = vectors.length; i < l; i ++ ) { + + this.lineTo( vectors[ i ].x, vectors[ i ].y ); + + } + + }, + + moveTo: function ( x, y ) { + + this.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying? + + }, + + lineTo: function ( x, y ) { + + var curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) ); + this.curves.push( curve ); + + this.currentPoint.set( x, y ); + + }, + + quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) { + + var curve = new QuadraticBezierCurve( + this.currentPoint.clone(), + new Vector2( aCPx, aCPy ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + }, + + bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + + var curve = new CubicBezierCurve( + this.currentPoint.clone(), + new Vector2( aCP1x, aCP1y ), + new Vector2( aCP2x, aCP2y ), + new Vector2( aX, aY ) + ); + + this.curves.push( curve ); + + this.currentPoint.set( aX, aY ); + + }, + + splineThru: function ( pts /*Array of Vector*/ ) { + + var npts = [ this.currentPoint.clone() ].concat( pts ); + + var curve = new SplineCurve( npts ); + this.curves.push( curve ); + + this.currentPoint.copy( pts[ pts.length - 1 ] ); + + }, + + arc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + var x0 = this.currentPoint.x; + var y0 = this.currentPoint.y; + + this.absarc( aX + x0, aY + y0, aRadius, + aStartAngle, aEndAngle, aClockwise ); + + }, + + absarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + this.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + }, + + ellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + var x0 = this.currentPoint.x; + var y0 = this.currentPoint.y; + + this.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + }, + + absellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) { + + var curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ); + + if ( this.curves.length > 0 ) { + + // if a previous curve is present, attempt to join + var firstPoint = curve.getPoint( 0 ); + + if ( ! firstPoint.equals( this.currentPoint ) ) { + + this.lineTo( firstPoint.x, firstPoint.y ); + + } + + } + + this.curves.push( curve ); + + var lastPoint = curve.getPoint( 1 ); + this.currentPoint.copy( lastPoint ); + + } + + } ); + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * Defines a 2d shape plane using paths. + **/ + + // STEP 1 Create a path. + // STEP 2 Turn path into shape. + // STEP 3 ExtrudeGeometry takes in Shape/Shapes + // STEP 3a - Extract points from each shape, turn to vertices + // STEP 3b - Triangulate each shape, add faces. + + function Shape() { + + Path.apply( this, arguments ); + + this.holes = []; + + } + + Shape.prototype = Object.assign( Object.create( PathPrototype ), { + + constructor: Shape, + + getPointsHoles: function ( divisions ) { + + var holesPts = []; + + for ( var i = 0, l = this.holes.length; i < l; i ++ ) { + + holesPts[ i ] = this.holes[ i ].getPoints( divisions ); + + } + + return holesPts; + + }, + + // Get points of shape and holes (keypoints based on segments parameter) + + extractAllPoints: function ( divisions ) { + + return { + + shape: this.getPoints( divisions ), + holes: this.getPointsHoles( divisions ) + + }; + + }, + + extractPoints: function ( divisions ) { + + return this.extractAllPoints( divisions ); + + } + + } ); + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * Creates free form 2d path using series of points, lines or curves. + * + **/ + + function Path( points ) { + + CurvePath.call( this ); + this.currentPoint = new Vector2(); + + if ( points ) { + + this.fromPoints( points ); + + } + + } + + Path.prototype = PathPrototype; + PathPrototype.constructor = Path; + + + // minimal class for proxing functions to Path. Replaces old "extractSubpaths()" + function ShapePath() { + this.subPaths = []; + this.currentPath = null; + } + + ShapePath.prototype = { + moveTo: function ( x, y ) { + this.currentPath = new Path(); + this.subPaths.push(this.currentPath); + this.currentPath.moveTo( x, y ); + }, + lineTo: function ( x, y ) { + this.currentPath.lineTo( x, y ); + }, + quadraticCurveTo: function ( aCPx, aCPy, aX, aY ) { + this.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY ); + }, + bezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) { + this.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ); + }, + splineThru: function ( pts ) { + this.currentPath.splineThru( pts ); + }, + + toShapes: function ( isCCW, noHoles ) { + + function toShapesNoHoles( inSubpaths ) { + + var shapes = []; + + for ( var i = 0, l = inSubpaths.length; i < l; i ++ ) { + + var tmpPath = inSubpaths[ i ]; + + var tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + + shapes.push( tmpShape ); + + } + + return shapes; + + } + + function isPointInsidePolygon( inPt, inPolygon ) { + + var polyLen = inPolygon.length; + + // inPt on polygon contour => immediate success or + // toggling of inside/outside at every single! intersection point of an edge + // with the horizontal line through inPt, left of inPt + // not counting lowerY endpoints of edges and whole edges on that line + var inside = false; + for ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) { + + var edgeLowPt = inPolygon[ p ]; + var edgeHighPt = inPolygon[ q ]; + + var edgeDx = edgeHighPt.x - edgeLowPt.x; + var edgeDy = edgeHighPt.y - edgeLowPt.y; + + if ( Math.abs( edgeDy ) > Number.EPSILON ) { + + // not parallel + if ( edgeDy < 0 ) { + + edgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx; + edgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy; + + } + if ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) continue; + + if ( inPt.y === edgeLowPt.y ) { + + if ( inPt.x === edgeLowPt.x ) return true; // inPt is on contour ? + // continue; // no intersection or edgeLowPt => doesn't count !!! + + } else { + + var perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y ); + if ( perpEdge === 0 ) return true; // inPt is on contour ? + if ( perpEdge < 0 ) continue; + inside = ! inside; // true intersection left of inPt + + } + + } else { + + // parallel or collinear + if ( inPt.y !== edgeLowPt.y ) continue; // parallel + // edge lies on the same horizontal line as inPt + if ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) || + ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) ) return true; // inPt: Point on contour ! + // continue; + + } + + } + + return inside; + + } + + var isClockWise = ShapeUtils.isClockWise; + + var subPaths = this.subPaths; + if ( subPaths.length === 0 ) return []; + + if ( noHoles === true ) return toShapesNoHoles( subPaths ); + + + var solid, tmpPath, tmpShape, shapes = []; + + if ( subPaths.length === 1 ) { + + tmpPath = subPaths[ 0 ]; + tmpShape = new Shape(); + tmpShape.curves = tmpPath.curves; + shapes.push( tmpShape ); + return shapes; + + } + + var holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() ); + holesFirst = isCCW ? ! holesFirst : holesFirst; + + // console.log("Holes first", holesFirst); + + var betterShapeHoles = []; + var newShapes = []; + var newShapeHoles = []; + var mainIdx = 0; + var tmpPoints; + + newShapes[ mainIdx ] = undefined; + newShapeHoles[ mainIdx ] = []; + + for ( var i = 0, l = subPaths.length; i < l; i ++ ) { + + tmpPath = subPaths[ i ]; + tmpPoints = tmpPath.getPoints(); + solid = isClockWise( tmpPoints ); + solid = isCCW ? ! solid : solid; + + if ( solid ) { + + if ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) ) mainIdx ++; + + newShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints }; + newShapes[ mainIdx ].s.curves = tmpPath.curves; + + if ( holesFirst ) mainIdx ++; + newShapeHoles[ mainIdx ] = []; + + //console.log('cw', i); + + } else { + + newShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } ); + + //console.log('ccw', i); + + } + + } + + // only Holes? -> probably all Shapes with wrong orientation + if ( ! newShapes[ 0 ] ) return toShapesNoHoles( subPaths ); + + + if ( newShapes.length > 1 ) { + + var ambiguous = false; + var toChange = []; + + for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + betterShapeHoles[ sIdx ] = []; + + } + + for ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) { + + var sho = newShapeHoles[ sIdx ]; + + for ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) { + + var ho = sho[ hIdx ]; + var hole_unassigned = true; + + for ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) { + + if ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) { + + if ( sIdx !== s2Idx ) toChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } ); + if ( hole_unassigned ) { + + hole_unassigned = false; + betterShapeHoles[ s2Idx ].push( ho ); + + } else { + + ambiguous = true; + + } + + } + + } + if ( hole_unassigned ) { + + betterShapeHoles[ sIdx ].push( ho ); + + } + + } + + } + // console.log("ambiguous: ", ambiguous); + if ( toChange.length > 0 ) { + + // console.log("to change: ", toChange); + if ( ! ambiguous ) newShapeHoles = betterShapeHoles; + + } + + } + + var tmpHoles; + + for ( var i = 0, il = newShapes.length; i < il; i ++ ) { + + tmpShape = newShapes[ i ].s; + shapes.push( tmpShape ); + tmpHoles = newShapeHoles[ i ]; + + for ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) { + + tmpShape.holes.push( tmpHoles[ j ].h ); + + } + + } + + //console.log("shape", shapes); + + return shapes; + + } + }; + + /** + * @author zz85 / http://www.lab4games.net/zz85/blog + * @author mrdoob / http://mrdoob.com/ + */ + + function Font( data ) { + + this.data = data; + + } + + Object.assign( Font.prototype, { + + isFont: true, + + generateShapes: function ( text, size, divisions ) { + + function createPaths( text ) { + + var chars = String( text ).split( '' ); + var scale = size / data.resolution; + var offset = 0; + + var paths = []; + + for ( var i = 0; i < chars.length; i ++ ) { + + var ret = createPath( chars[ i ], scale, offset ); + offset += ret.offset; + + paths.push( ret.path ); + + } + + return paths; + + } + + function createPath( c, scale, offset ) { + + var glyph = data.glyphs[ c ] || data.glyphs[ '?' ]; + + if ( ! glyph ) return; + + var path = new ShapePath(); + + var pts = [], b2 = ShapeUtils.b2, b3 = ShapeUtils.b3; + var x, y, cpx, cpy, cpx0, cpy0, cpx1, cpy1, cpx2, cpy2, laste; + + if ( glyph.o ) { + + var outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) ); + + for ( var i = 0, l = outline.length; i < l; ) { + + var action = outline[ i ++ ]; + + switch ( action ) { + + case 'm': // moveTo + + x = outline[ i ++ ] * scale + offset; + y = outline[ i ++ ] * scale; + + path.moveTo( x, y ); + + break; + + case 'l': // lineTo + + x = outline[ i ++ ] * scale + offset; + y = outline[ i ++ ] * scale; + + path.lineTo( x, y ); + + break; + + case 'q': // quadraticCurveTo + + cpx = outline[ i ++ ] * scale + offset; + cpy = outline[ i ++ ] * scale; + cpx1 = outline[ i ++ ] * scale + offset; + cpy1 = outline[ i ++ ] * scale; + + path.quadraticCurveTo( cpx1, cpy1, cpx, cpy ); + + laste = pts[ pts.length - 1 ]; + + if ( laste ) { + + cpx0 = laste.x; + cpy0 = laste.y; + + for ( var i2 = 1; i2 <= divisions; i2 ++ ) { + + var t = i2 / divisions; + b2( t, cpx0, cpx1, cpx ); + b2( t, cpy0, cpy1, cpy ); + + } + + } + + break; + + case 'b': // bezierCurveTo + + cpx = outline[ i ++ ] * scale + offset; + cpy = outline[ i ++ ] * scale; + cpx1 = outline[ i ++ ] * scale + offset; + cpy1 = outline[ i ++ ] * scale; + cpx2 = outline[ i ++ ] * scale + offset; + cpy2 = outline[ i ++ ] * scale; + + path.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy ); + + laste = pts[ pts.length - 1 ]; + + if ( laste ) { + + cpx0 = laste.x; + cpy0 = laste.y; + + for ( var i2 = 1; i2 <= divisions; i2 ++ ) { + + var t = i2 / divisions; + b3( t, cpx0, cpx1, cpx2, cpx ); + b3( t, cpy0, cpy1, cpy2, cpy ); + + } + + } + + break; + + } + + } + + } + + return { offset: glyph.ha * scale, path: path }; + + } + + // + + if ( size === undefined ) size = 100; + if ( divisions === undefined ) divisions = 4; + + var data = this.data; + + var paths = createPaths( text ); + var shapes = []; + + for ( var p = 0, pl = paths.length; p < pl; p ++ ) { + + Array.prototype.push.apply( shapes, paths[ p ].toShapes() ); + + } + + return shapes; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function FontLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( FontLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var scope = this; + + var loader = new XHRLoader( this.manager ); + loader.load( url, function ( text ) { + + var json; + + try { + + json = JSON.parse( text ); + + } catch ( e ) { + + console.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' ); + json = JSON.parse( text.substring( 65, text.length - 2 ) ); + + } + + var font = scope.parse( json ); + + if ( onLoad ) onLoad( font ); + + }, onProgress, onError ); + + }, + + parse: function ( json ) { + + return new Font( json ); + + } + + } ); + + var context; + + function getAudioContext() { + + if ( context === undefined ) { + + context = new ( window.AudioContext || window.webkitAudioContext )(); + + } + + return context; + + } + + /** + * @author Reece Aaron Lecrivain / http://reecenotes.com/ + */ + + function AudioLoader( manager ) { + + this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager; + + } + + Object.assign( AudioLoader.prototype, { + + load: function ( url, onLoad, onProgress, onError ) { + + var loader = new XHRLoader( this.manager ); + loader.setResponseType( 'arraybuffer' ); + loader.load( url, function ( buffer ) { + + var context = getAudioContext(); + + context.decodeAudioData( buffer, function ( audioBuffer ) { + + onLoad( audioBuffer ); + + } ); + + }, onProgress, onError ); + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function StereoCamera() { + + this.type = 'StereoCamera'; + + this.aspect = 1; + + this.eyeSep = 0.064; + + this.cameraL = new PerspectiveCamera(); + this.cameraL.layers.enable( 1 ); + this.cameraL.matrixAutoUpdate = false; + + this.cameraR = new PerspectiveCamera(); + this.cameraR.layers.enable( 2 ); + this.cameraR.matrixAutoUpdate = false; + + } + + Object.assign( StereoCamera.prototype, { + + update: ( function () { + + var instance, focus, fov, aspect, near, far, zoom; + + var eyeRight = new Matrix4(); + var eyeLeft = new Matrix4(); + + return function update( camera ) { + + var needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov || + aspect !== camera.aspect * this.aspect || near !== camera.near || + far !== camera.far || zoom !== camera.zoom; + + if ( needsUpdate ) { + + instance = this; + focus = camera.focus; + fov = camera.fov; + aspect = camera.aspect * this.aspect; + near = camera.near; + far = camera.far; + zoom = camera.zoom; + + // Off-axis stereoscopic effect based on + // http://paulbourke.net/stereographics/stereorender/ + + var projectionMatrix = camera.projectionMatrix.clone(); + var eyeSep = this.eyeSep / 2; + var eyeSepOnProjection = eyeSep * near / focus; + var ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom; + var xmin, xmax; + + // translate xOffset + + eyeLeft.elements[ 12 ] = - eyeSep; + eyeRight.elements[ 12 ] = eyeSep; + + // for left eye + + xmin = - ymax * aspect + eyeSepOnProjection; + xmax = ymax * aspect + eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraL.projectionMatrix.copy( projectionMatrix ); + + // for right eye + + xmin = - ymax * aspect - eyeSepOnProjection; + xmax = ymax * aspect - eyeSepOnProjection; + + projectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin ); + projectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin ); + + this.cameraR.projectionMatrix.copy( projectionMatrix ); + + } + + this.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft ); + this.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight ); + + }; + + } )() + + } ); + + /** + * Camera for rendering cube maps + * - renders scene into axis-aligned cube + * + * @author alteredq / http://alteredqualia.com/ + */ + + function CubeCamera( near, far, cubeResolution ) { + + Object3D.call( this ); + + this.type = 'CubeCamera'; + + var fov = 90, aspect = 1; + + var cameraPX = new PerspectiveCamera( fov, aspect, near, far ); + cameraPX.up.set( 0, - 1, 0 ); + cameraPX.lookAt( new Vector3( 1, 0, 0 ) ); + this.add( cameraPX ); + + var cameraNX = new PerspectiveCamera( fov, aspect, near, far ); + cameraNX.up.set( 0, - 1, 0 ); + cameraNX.lookAt( new Vector3( - 1, 0, 0 ) ); + this.add( cameraNX ); + + var cameraPY = new PerspectiveCamera( fov, aspect, near, far ); + cameraPY.up.set( 0, 0, 1 ); + cameraPY.lookAt( new Vector3( 0, 1, 0 ) ); + this.add( cameraPY ); + + var cameraNY = new PerspectiveCamera( fov, aspect, near, far ); + cameraNY.up.set( 0, 0, - 1 ); + cameraNY.lookAt( new Vector3( 0, - 1, 0 ) ); + this.add( cameraNY ); + + var cameraPZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraPZ.up.set( 0, - 1, 0 ); + cameraPZ.lookAt( new Vector3( 0, 0, 1 ) ); + this.add( cameraPZ ); + + var cameraNZ = new PerspectiveCamera( fov, aspect, near, far ); + cameraNZ.up.set( 0, - 1, 0 ); + cameraNZ.lookAt( new Vector3( 0, 0, - 1 ) ); + this.add( cameraNZ ); + + var options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter }; + + this.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options ); + + this.updateCubeMap = function ( renderer, scene ) { + + if ( this.parent === null ) this.updateMatrixWorld(); + + var renderTarget = this.renderTarget; + var generateMipmaps = renderTarget.texture.generateMipmaps; + + renderTarget.texture.generateMipmaps = false; + + renderTarget.activeCubeFace = 0; + renderer.render( scene, cameraPX, renderTarget ); + + renderTarget.activeCubeFace = 1; + renderer.render( scene, cameraNX, renderTarget ); + + renderTarget.activeCubeFace = 2; + renderer.render( scene, cameraPY, renderTarget ); + + renderTarget.activeCubeFace = 3; + renderer.render( scene, cameraNY, renderTarget ); + + renderTarget.activeCubeFace = 4; + renderer.render( scene, cameraPZ, renderTarget ); + + renderTarget.texture.generateMipmaps = generateMipmaps; + + renderTarget.activeCubeFace = 5; + renderer.render( scene, cameraNZ, renderTarget ); + + renderer.setRenderTarget( null ); + + }; + + } + + CubeCamera.prototype = Object.create( Object3D.prototype ); + CubeCamera.prototype.constructor = CubeCamera; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function AudioListener() { + + Object3D.call( this ); + + this.type = 'AudioListener'; + + this.context = getAudioContext(); + + this.gain = this.context.createGain(); + this.gain.connect( this.context.destination ); + + this.filter = null; + + } + + AudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: AudioListener, + + getInput: function () { + + return this.gain; + + }, + + removeFilter: function ( ) { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + this.gain.connect( this.context.destination ); + this.filter = null; + + } + + }, + + getFilter: function () { + + return this.filter; + + }, + + setFilter: function ( value ) { + + if ( this.filter !== null ) { + + this.gain.disconnect( this.filter ); + this.filter.disconnect( this.context.destination ); + + } else { + + this.gain.disconnect( this.context.destination ); + + } + + this.filter = value; + this.gain.connect( this.filter ); + this.filter.connect( this.context.destination ); + + }, + + getMasterVolume: function () { + + return this.gain.gain.value; + + }, + + setMasterVolume: function ( value ) { + + this.gain.gain.value = value; + + }, + + updateMatrixWorld: ( function () { + + var position = new Vector3(); + var quaternion = new Quaternion(); + var scale = new Vector3(); + + var orientation = new Vector3(); + + return function updateMatrixWorld( force ) { + + Object3D.prototype.updateMatrixWorld.call( this, force ); + + var listener = this.context.listener; + var up = this.up; + + this.matrixWorld.decompose( position, quaternion, scale ); + + orientation.set( 0, 0, - 1 ).applyQuaternion( quaternion ); + + listener.setPosition( position.x, position.y, position.z ); + listener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z ); + + }; + + } )() + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + * @author Reece Aaron Lecrivain / http://reecenotes.com/ + */ + + function Audio( listener ) { + + Object3D.call( this ); + + this.type = 'Audio'; + + this.context = listener.context; + this.source = this.context.createBufferSource(); + this.source.onended = this.onEnded.bind( this ); + + this.gain = this.context.createGain(); + this.gain.connect( listener.getInput() ); + + this.autoplay = false; + + this.startTime = 0; + this.playbackRate = 1; + this.isPlaying = false; + this.hasPlaybackControl = true; + this.sourceType = 'empty'; + + this.filters = []; + + } + + Audio.prototype = Object.assign( Object.create( Object3D.prototype ), { + + constructor: Audio, + + getOutput: function () { + + return this.gain; + + }, + + setNodeSource: function ( audioNode ) { + + this.hasPlaybackControl = false; + this.sourceType = 'audioNode'; + this.source = audioNode; + this.connect(); + + return this; + + }, + + setBuffer: function ( audioBuffer ) { + + this.source.buffer = audioBuffer; + this.sourceType = 'buffer'; + + if ( this.autoplay ) this.play(); + + return this; + + }, + + play: function () { + + if ( this.isPlaying === true ) { + + console.warn( 'THREE.Audio: Audio is already playing.' ); + return; + + } + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + var source = this.context.createBufferSource(); + + source.buffer = this.source.buffer; + source.loop = this.source.loop; + source.onended = this.source.onended; + source.start( 0, this.startTime ); + source.playbackRate.value = this.playbackRate; + + this.isPlaying = true; + + this.source = source; + + return this.connect(); + + }, + + pause: function () { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.source.stop(); + this.startTime = this.context.currentTime; + this.isPlaying = false; + + return this; + + }, + + stop: function () { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.source.stop(); + this.startTime = 0; + this.isPlaying = false; + + return this; + + }, + + connect: function () { + + if ( this.filters.length > 0 ) { + + this.source.connect( this.filters[ 0 ] ); + + for ( var i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].connect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].connect( this.getOutput() ); + + } else { + + this.source.connect( this.getOutput() ); + + } + + return this; + + }, + + disconnect: function () { + + if ( this.filters.length > 0 ) { + + this.source.disconnect( this.filters[ 0 ] ); + + for ( var i = 1, l = this.filters.length; i < l; i ++ ) { + + this.filters[ i - 1 ].disconnect( this.filters[ i ] ); + + } + + this.filters[ this.filters.length - 1 ].disconnect( this.getOutput() ); + + } else { + + this.source.disconnect( this.getOutput() ); + + } + + return this; + + }, + + getFilters: function () { + + return this.filters; + + }, + + setFilters: function ( value ) { + + if ( ! value ) value = []; + + if ( this.isPlaying === true ) { + + this.disconnect(); + this.filters = value; + this.connect(); + + } else { + + this.filters = value; + + } + + return this; + + }, + + getFilter: function () { + + return this.getFilters()[ 0 ]; + + }, + + setFilter: function ( filter ) { + + return this.setFilters( filter ? [ filter ] : [] ); + + }, + + setPlaybackRate: function ( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.playbackRate = value; + + if ( this.isPlaying === true ) { + + this.source.playbackRate.value = this.playbackRate; + + } + + return this; + + }, + + getPlaybackRate: function () { + + return this.playbackRate; + + }, + + onEnded: function () { + + this.isPlaying = false; + + }, + + getLoop: function () { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return false; + + } + + return this.source.loop; + + }, + + setLoop: function ( value ) { + + if ( this.hasPlaybackControl === false ) { + + console.warn( 'THREE.Audio: this Audio has no playback control.' ); + return; + + } + + this.source.loop = value; + + }, + + getVolume: function () { + + return this.gain.gain.value; + + }, + + + setVolume: function ( value ) { + + this.gain.gain.value = value; + + return this; + + } + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function PositionalAudio( listener ) { + + Audio.call( this, listener ); + + this.panner = this.context.createPanner(); + this.panner.connect( this.gain ); + + } + + PositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), { + + constructor: PositionalAudio, + + getOutput: function () { + + return this.panner; + + }, + + getRefDistance: function () { + + return this.panner.refDistance; + + }, + + setRefDistance: function ( value ) { + + this.panner.refDistance = value; + + }, + + getRolloffFactor: function () { + + return this.panner.rolloffFactor; + + }, + + setRolloffFactor: function ( value ) { + + this.panner.rolloffFactor = value; + + }, + + getDistanceModel: function () { + + return this.panner.distanceModel; + + }, + + setDistanceModel: function ( value ) { + + this.panner.distanceModel = value; + + }, + + getMaxDistance: function () { + + return this.panner.maxDistance; + + }, + + setMaxDistance: function ( value ) { + + this.panner.maxDistance = value; + + }, + + updateMatrixWorld: ( function () { + + var position = new Vector3(); + + return function updateMatrixWorld( force ) { + + Object3D.prototype.updateMatrixWorld.call( this, force ); + + position.setFromMatrixPosition( this.matrixWorld ); + + this.panner.setPosition( position.x, position.y, position.z ); + + }; + + } )() + + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function AudioAnalyser( audio, fftSize ) { + + this.analyser = audio.context.createAnalyser(); + this.analyser.fftSize = fftSize !== undefined ? fftSize : 2048; + + this.data = new Uint8Array( this.analyser.frequencyBinCount ); + + audio.getOutput().connect( this.analyser ); + + } + + Object.assign( AudioAnalyser.prototype, { + + getFrequencyData: function () { + + this.analyser.getByteFrequencyData( this.data ); + + return this.data; + + }, + + getAverageFrequency: function () { + + var value = 0, data = this.getFrequencyData(); + + for ( var i = 0; i < data.length; i ++ ) { + + value += data[ i ]; + + } + + return value / data.length; + + } + + } ); + + /** + * + * Buffered scene graph property that allows weighted accumulation. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function PropertyMixer( binding, typeName, valueSize ) { + + this.binding = binding; + this.valueSize = valueSize; + + var bufferType = Float64Array, + mixFunction; + + switch ( typeName ) { + + case 'quaternion': mixFunction = this._slerp; break; + + case 'string': + case 'bool': + + bufferType = Array, mixFunction = this._select; break; + + default: mixFunction = this._lerp; + + } + + this.buffer = new bufferType( valueSize * 4 ); + // layout: [ incoming | accu0 | accu1 | orig ] + // + // interpolators can use .buffer as their .result + // the data then goes to 'incoming' + // + // 'accu0' and 'accu1' are used frame-interleaved for + // the cumulative result and are compared to detect + // changes + // + // 'orig' stores the original state of the property + + this._mixBufferRegion = mixFunction; + + this.cumulativeWeight = 0; + + this.useCount = 0; + this.referenceCount = 0; + + } + + PropertyMixer.prototype = { + + constructor: PropertyMixer, + + // accumulate data in the 'incoming' region into 'accu' + accumulate: function( accuIndex, weight ) { + + // note: happily accumulating nothing when weight = 0, the caller knows + // the weight and shouldn't have made the call in the first place + + var buffer = this.buffer, + stride = this.valueSize, + offset = accuIndex * stride + stride, + + currentWeight = this.cumulativeWeight; + + if ( currentWeight === 0 ) { + + // accuN := incoming * weight + + for ( var i = 0; i !== stride; ++ i ) { + + buffer[ offset + i ] = buffer[ i ]; + + } + + currentWeight = weight; + + } else { + + // accuN := accuN + incoming * weight + + currentWeight += weight; + var mix = weight / currentWeight; + this._mixBufferRegion( buffer, offset, 0, mix, stride ); + + } + + this.cumulativeWeight = currentWeight; + + }, + + // apply the state of 'accu' to the binding when accus differ + apply: function( accuIndex ) { + + var stride = this.valueSize, + buffer = this.buffer, + offset = accuIndex * stride + stride, + + weight = this.cumulativeWeight, + + binding = this.binding; + + this.cumulativeWeight = 0; + + if ( weight < 1 ) { + + // accuN := accuN + original * ( 1 - cumulativeWeight ) + + var originalValueOffset = stride * 3; + + this._mixBufferRegion( + buffer, offset, originalValueOffset, 1 - weight, stride ); + + } + + for ( var i = stride, e = stride + stride; i !== e; ++ i ) { + + if ( buffer[ i ] !== buffer[ i + stride ] ) { + + // value has changed -> update scene graph + + binding.setValue( buffer, offset ); + break; + + } + + } + + }, + + // remember the state of the bound property and copy it to both accus + saveOriginalState: function() { + + var binding = this.binding; + + var buffer = this.buffer, + stride = this.valueSize, + + originalValueOffset = stride * 3; + + binding.getValue( buffer, originalValueOffset ); + + // accu[0..1] := orig -- initially detect changes against the original + for ( var i = stride, e = originalValueOffset; i !== e; ++ i ) { + + buffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ]; + + } + + this.cumulativeWeight = 0; + + }, + + // apply the state previously taken via 'saveOriginalState' to the binding + restoreOriginalState: function() { + + var originalValueOffset = this.valueSize * 3; + this.binding.setValue( this.buffer, originalValueOffset ); + + }, + + + // mix functions + + _select: function( buffer, dstOffset, srcOffset, t, stride ) { + + if ( t >= 0.5 ) { + + for ( var i = 0; i !== stride; ++ i ) { + + buffer[ dstOffset + i ] = buffer[ srcOffset + i ]; + + } + + } + + }, + + _slerp: function( buffer, dstOffset, srcOffset, t, stride ) { + + Quaternion.slerpFlat( buffer, dstOffset, + buffer, dstOffset, buffer, srcOffset, t ); + + }, + + _lerp: function( buffer, dstOffset, srcOffset, t, stride ) { + + var s = 1 - t; + + for ( var i = 0; i !== stride; ++ i ) { + + var j = dstOffset + i; + + buffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t; + + } + + } + + }; + + /** + * + * A reference to a real property in the scene graph. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function PropertyBinding( rootNode, path, parsedPath ) { + + this.path = path; + this.parsedPath = parsedPath || + PropertyBinding.parseTrackName( path ); + + this.node = PropertyBinding.findNode( + rootNode, this.parsedPath.nodeName ) || rootNode; + + this.rootNode = rootNode; + + } + + PropertyBinding.prototype = { + + constructor: PropertyBinding, + + getValue: function getValue_unbound( targetArray, offset ) { + + this.bind(); + this.getValue( targetArray, offset ); + + // Note: This class uses a State pattern on a per-method basis: + // 'bind' sets 'this.getValue' / 'setValue' and shadows the + // prototype version of these methods with one that represents + // the bound state. When the property is not found, the methods + // become no-ops. + + }, + + setValue: function getValue_unbound( sourceArray, offset ) { + + this.bind(); + this.setValue( sourceArray, offset ); + + }, + + // create getter / setter pair for a property in the scene graph + bind: function() { + + var targetObject = this.node, + parsedPath = this.parsedPath, + + objectName = parsedPath.objectName, + propertyName = parsedPath.propertyName, + propertyIndex = parsedPath.propertyIndex; + + if ( ! targetObject ) { + + targetObject = PropertyBinding.findNode( + this.rootNode, parsedPath.nodeName ) || this.rootNode; + + this.node = targetObject; + + } + + // set fail state so we can just 'return' on error + this.getValue = this._getValue_unavailable; + this.setValue = this._setValue_unavailable; + + // ensure there is a value node + if ( ! targetObject ) { + + console.error( " trying to update node for track: " + this.path + " but it wasn't found." ); + return; + + } + + if ( objectName ) { + + var objectIndex = parsedPath.objectIndex; + + // special cases were we need to reach deeper into the hierarchy to get the face materials.... + switch ( objectName ) { + + case 'materials': + + if ( ! targetObject.material ) { + + console.error( ' can not bind to material as node does not have a material', this ); + return; + + } + + if ( ! targetObject.material.materials ) { + + console.error( ' can not bind to material.materials as node.material does not have a materials array', this ); + return; + + } + + targetObject = targetObject.material.materials; + + break; + + case 'bones': + + if ( ! targetObject.skeleton ) { + + console.error( ' can not bind to bones as node does not have a skeleton', this ); + return; + + } + + // potential future optimization: skip this if propertyIndex is already an integer + // and convert the integer string to a true integer. + + targetObject = targetObject.skeleton.bones; + + // support resolving morphTarget names into indices. + for ( var i = 0; i < targetObject.length; i ++ ) { + + if ( targetObject[ i ].name === objectIndex ) { + + objectIndex = i; + break; + + } + + } + + break; + + default: + + if ( targetObject[ objectName ] === undefined ) { + + console.error( ' can not bind to objectName of node, undefined', this ); + return; + + } + + targetObject = targetObject[ objectName ]; + + } + + + if ( objectIndex !== undefined ) { + + if ( targetObject[ objectIndex ] === undefined ) { + + console.error( " trying to bind to objectIndex of objectName, but is undefined:", this, targetObject ); + return; + + } + + targetObject = targetObject[ objectIndex ]; + + } + + } + + // resolve property + var nodeProperty = targetObject[ propertyName ]; + + if ( nodeProperty === undefined ) { + + var nodeName = parsedPath.nodeName; + + console.error( " trying to update property for track: " + nodeName + + '.' + propertyName + " but it wasn't found.", targetObject ); + return; + + } + + // determine versioning scheme + var versioning = this.Versioning.None; + + if ( targetObject.needsUpdate !== undefined ) { // material + + versioning = this.Versioning.NeedsUpdate; + this.targetObject = targetObject; + + } else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform + + versioning = this.Versioning.MatrixWorldNeedsUpdate; + this.targetObject = targetObject; + + } + + // determine how the property gets bound + var bindingType = this.BindingType.Direct; + + if ( propertyIndex !== undefined ) { + // access a sub element of the property array (only primitives are supported right now) + + if ( propertyName === "morphTargetInfluences" ) { + // potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer. + + // support resolving morphTarget names into indices. + if ( ! targetObject.geometry ) { + + console.error( ' can not bind to morphTargetInfluences becasuse node does not have a geometry', this ); + return; + + } + + if ( ! targetObject.geometry.morphTargets ) { + + console.error( ' can not bind to morphTargetInfluences becasuse node does not have a geometry.morphTargets', this ); + return; + + } + + for ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) { + + if ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) { + + propertyIndex = i; + break; + + } + + } + + } + + bindingType = this.BindingType.ArrayElement; + + this.resolvedProperty = nodeProperty; + this.propertyIndex = propertyIndex; + + } else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) { + // must use copy for Object3D.Euler/Quaternion + + bindingType = this.BindingType.HasFromToArray; + + this.resolvedProperty = nodeProperty; + + } else if ( nodeProperty.length !== undefined ) { + + bindingType = this.BindingType.EntireArray; + + this.resolvedProperty = nodeProperty; + + } else { + + this.propertyName = propertyName; + + } + + // select getter / setter + this.getValue = this.GetterByBindingType[ bindingType ]; + this.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ]; + + }, + + unbind: function() { + + this.node = null; + + // back to the prototype version of getValue / setValue + // note: avoiding to mutate the shape of 'this' via 'delete' + this.getValue = this._getValue_unbound; + this.setValue = this._setValue_unbound; + + } + + }; + + Object.assign( PropertyBinding.prototype, { // prototype, continued + + // these are used to "bind" a nonexistent property + _getValue_unavailable: function() {}, + _setValue_unavailable: function() {}, + + // initial state of these methods that calls 'bind' + _getValue_unbound: PropertyBinding.prototype.getValue, + _setValue_unbound: PropertyBinding.prototype.setValue, + + BindingType: { + Direct: 0, + EntireArray: 1, + ArrayElement: 2, + HasFromToArray: 3 + }, + + Versioning: { + None: 0, + NeedsUpdate: 1, + MatrixWorldNeedsUpdate: 2 + }, + + GetterByBindingType: [ + + function getValue_direct( buffer, offset ) { + + buffer[ offset ] = this.node[ this.propertyName ]; + + }, + + function getValue_array( buffer, offset ) { + + var source = this.resolvedProperty; + + for ( var i = 0, n = source.length; i !== n; ++ i ) { + + buffer[ offset ++ ] = source[ i ]; + + } + + }, + + function getValue_arrayElement( buffer, offset ) { + + buffer[ offset ] = this.resolvedProperty[ this.propertyIndex ]; + + }, + + function getValue_toArray( buffer, offset ) { + + this.resolvedProperty.toArray( buffer, offset ); + + } + + ], + + SetterByBindingTypeAndVersioning: [ + + [ + // Direct + + function setValue_direct( buffer, offset ) { + + this.node[ this.propertyName ] = buffer[ offset ]; + + }, + + function setValue_direct_setNeedsUpdate( buffer, offset ) { + + this.node[ this.propertyName ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + }, + + function setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.node[ this.propertyName ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // EntireArray + + function setValue_array( buffer, offset ) { + + var dest = this.resolvedProperty; + + for ( var i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + }, + + function setValue_array_setNeedsUpdate( buffer, offset ) { + + var dest = this.resolvedProperty; + + for ( var i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.needsUpdate = true; + + }, + + function setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) { + + var dest = this.resolvedProperty; + + for ( var i = 0, n = dest.length; i !== n; ++ i ) { + + dest[ i ] = buffer[ offset ++ ]; + + } + + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // ArrayElement + + function setValue_arrayElement( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + + }, + + function setValue_arrayElement_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.needsUpdate = true; + + }, + + function setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty[ this.propertyIndex ] = buffer[ offset ]; + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ], [ + + // HasToFromArray + + function setValue_fromArray( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + + }, + + function setValue_fromArray_setNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.needsUpdate = true; + + }, + + function setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) { + + this.resolvedProperty.fromArray( buffer, offset ); + this.targetObject.matrixWorldNeedsUpdate = true; + + } + + ] + + ] + + } ); + + PropertyBinding.Composite = + function( targetGroup, path, optionalParsedPath ) { + + var parsedPath = optionalParsedPath || + PropertyBinding.parseTrackName( path ); + + this._targetGroup = targetGroup; + this._bindings = targetGroup.subscribe_( path, parsedPath ); + + }; + + PropertyBinding.Composite.prototype = { + + constructor: PropertyBinding.Composite, + + getValue: function( array, offset ) { + + this.bind(); // bind all binding + + var firstValidIndex = this._targetGroup.nCachedObjects_, + binding = this._bindings[ firstValidIndex ]; + + // and only call .getValue on the first + if ( binding !== undefined ) binding.getValue( array, offset ); + + }, + + setValue: function( array, offset ) { + + var bindings = this._bindings; + + for ( var i = this._targetGroup.nCachedObjects_, + n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].setValue( array, offset ); + + } + + }, + + bind: function() { + + var bindings = this._bindings; + + for ( var i = this._targetGroup.nCachedObjects_, + n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].bind(); + + } + + }, + + unbind: function() { + + var bindings = this._bindings; + + for ( var i = this._targetGroup.nCachedObjects_, + n = bindings.length; i !== n; ++ i ) { + + bindings[ i ].unbind(); + + } + + } + + }; + + PropertyBinding.create = function( root, path, parsedPath ) { + + if ( ! ( (root && root.isAnimationObjectGroup) ) ) { + + return new PropertyBinding( root, path, parsedPath ); + + } else { + + return new PropertyBinding.Composite( root, path, parsedPath ); + + } + + }; + + PropertyBinding.parseTrackName = function( trackName ) { + + // matches strings in the form of: + // nodeName.property + // nodeName.property[accessor] + // nodeName.material.property[accessor] + // uuid.property[accessor] + // uuid.objectName[objectIndex].propertyName[propertyIndex] + // parentName/nodeName.property + // parentName/parentName/nodeName.property[index] + // .bone[Armature.DEF_cog].position + // scene:helium_balloon_model:helium_balloon_model.position + // created and tested via https://regex101.com/#javascript + + var re = /^((?:\w+[\/:])*)(\w+)?(?:\.(\w+)(?:\[(.+)\])?)?\.(\w+)(?:\[(.+)\])?$/; + var matches = re.exec( trackName ); + + if ( ! matches ) { + + throw new Error( "cannot parse trackName at all: " + trackName ); + + } + + var results = { + // directoryName: matches[ 1 ], // (tschw) currently unused + nodeName: matches[ 2 ], // allowed to be null, specified root node. + objectName: matches[ 3 ], + objectIndex: matches[ 4 ], + propertyName: matches[ 5 ], + propertyIndex: matches[ 6 ] // allowed to be null, specifies that the whole property is set. + }; + + if ( results.propertyName === null || results.propertyName.length === 0 ) { + + throw new Error( "can not parse propertyName from trackName: " + trackName ); + + } + + return results; + + }; + + PropertyBinding.findNode = function( root, nodeName ) { + + if ( ! nodeName || nodeName === "" || nodeName === "root" || nodeName === "." || nodeName === -1 || nodeName === root.name || nodeName === root.uuid ) { + + return root; + + } + + // search into skeleton bones. + if ( root.skeleton ) { + + var searchSkeleton = function( skeleton ) { + + for( var i = 0; i < skeleton.bones.length; i ++ ) { + + var bone = skeleton.bones[ i ]; + + if ( bone.name === nodeName ) { + + return bone; + + } + } + + return null; + + }; + + var bone = searchSkeleton( root.skeleton ); + + if ( bone ) { + + return bone; + + } + } + + // search into node subtree. + if ( root.children ) { + + var searchNodeSubtree = function( children ) { + + for( var i = 0; i < children.length; i ++ ) { + + var childNode = children[ i ]; + + if ( childNode.name === nodeName || childNode.uuid === nodeName ) { + + return childNode; + + } + + var result = searchNodeSubtree( childNode.children ); + + if ( result ) return result; + + } + + return null; + + }; + + var subTreeNode = searchNodeSubtree( root.children ); + + if ( subTreeNode ) { + + return subTreeNode; + + } + + } + + return null; + + }; + + /** + * + * A group of objects that receives a shared animation state. + * + * Usage: + * + * - Add objects you would otherwise pass as 'root' to the + * constructor or the .clipAction method of AnimationMixer. + * + * - Instead pass this object as 'root'. + * + * - You can also add and remove objects later when the mixer + * is running. + * + * Note: + * + * Objects of this class appear as one object to the mixer, + * so cache control of the individual objects must be done + * on the group. + * + * Limitation: + * + * - The animated properties must be compatible among the + * all objects in the group. + * + * - A single property can either be controlled through a + * target group or directly, but not both. + * + * @author tschw + */ + + function AnimationObjectGroup( var_args ) { + + this.uuid = _Math.generateUUID(); + + // cached objects followed by the active ones + this._objects = Array.prototype.slice.call( arguments ); + + this.nCachedObjects_ = 0; // threshold + // note: read by PropertyBinding.Composite + + var indices = {}; + this._indicesByUUID = indices; // for bookkeeping + + for ( var i = 0, n = arguments.length; i !== n; ++ i ) { + + indices[ arguments[ i ].uuid ] = i; + + } + + this._paths = []; // inside: string + this._parsedPaths = []; // inside: { we don't care, here } + this._bindings = []; // inside: Array< PropertyBinding > + this._bindingsIndicesByPath = {}; // inside: indices in these arrays + + var scope = this; + + this.stats = { + + objects: { + get total() { return scope._objects.length; }, + get inUse() { return this.total - scope.nCachedObjects_; } + }, + + get bindingsPerObject() { return scope._bindings.length; } + + }; + + } + + AnimationObjectGroup.prototype = { + + constructor: AnimationObjectGroup, + + isAnimationObjectGroup: true, + + add: function( var_args ) { + + var objects = this._objects, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_, + indicesByUUID = this._indicesByUUID, + paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + nBindings = bindings.length; + + for ( var i = 0, n = arguments.length; i !== n; ++ i ) { + + var object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index === undefined ) { + + // unknown object -> add it to the ACTIVE region + + index = nObjects ++; + indicesByUUID[ uuid ] = index; + objects.push( object ); + + // accounting is done, now do the same for all bindings + + for ( var j = 0, m = nBindings; j !== m; ++ j ) { + + bindings[ j ].push( + new PropertyBinding( + object, paths[ j ], parsedPaths[ j ] ) ); + + } + + } else if ( index < nCachedObjects ) { + + var knownObject = objects[ index ]; + + // move existing object to the ACTIVE region + + var firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ]; + + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + indicesByUUID[ uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( var j = 0, m = nBindings; j !== m; ++ j ) { + + var bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ], + binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = lastCached; + + if ( binding === undefined ) { + + // since we do not bother to create new bindings + // for objects that are cached, the binding may + // or may not exist + + binding = new PropertyBinding( + object, paths[ j ], parsedPaths[ j ] ); + + } + + bindingsForPath[ firstActiveIndex ] = binding; + + } + + } else if ( objects[ index ] !== knownObject) { + + console.error( "Different objects with the same UUID " + + "detected. Clean the caches or recreate your " + + "infrastructure when reloading scenes..." ); + + } // else the object is already where we want it to be + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + remove: function( var_args ) { + + var objects = this._objects, + nCachedObjects = this.nCachedObjects_, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + for ( var i = 0, n = arguments.length; i !== n; ++ i ) { + + var object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined && index >= nCachedObjects ) { + + // move existing object into the CACHED region + + var lastCachedIndex = nCachedObjects ++, + firstActiveObject = objects[ lastCachedIndex ]; + + indicesByUUID[ firstActiveObject.uuid ] = index; + objects[ index ] = firstActiveObject; + + indicesByUUID[ uuid ] = lastCachedIndex; + objects[ lastCachedIndex ] = object; + + // accounting is done, now do the same for all bindings + + for ( var j = 0, m = nBindings; j !== m; ++ j ) { + + var bindingsForPath = bindings[ j ], + firstActive = bindingsForPath[ lastCachedIndex ], + binding = bindingsForPath[ index ]; + + bindingsForPath[ index ] = firstActive; + bindingsForPath[ lastCachedIndex ] = binding; + + } + + } + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + // remove & forget + uncache: function( var_args ) { + + var objects = this._objects, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_, + indicesByUUID = this._indicesByUUID, + bindings = this._bindings, + nBindings = bindings.length; + + for ( var i = 0, n = arguments.length; i !== n; ++ i ) { + + var object = arguments[ i ], + uuid = object.uuid, + index = indicesByUUID[ uuid ]; + + if ( index !== undefined ) { + + delete indicesByUUID[ uuid ]; + + if ( index < nCachedObjects ) { + + // object is cached, shrink the CACHED region + + var firstActiveIndex = -- nCachedObjects, + lastCachedObject = objects[ firstActiveIndex ], + lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + // last cached object takes this object's place + indicesByUUID[ lastCachedObject.uuid ] = index; + objects[ index ] = lastCachedObject; + + // last object goes to the activated slot and pop + indicesByUUID[ lastObject.uuid ] = firstActiveIndex; + objects[ firstActiveIndex ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( var j = 0, m = nBindings; j !== m; ++ j ) { + + var bindingsForPath = bindings[ j ], + lastCached = bindingsForPath[ firstActiveIndex ], + last = bindingsForPath[ lastIndex ]; + + bindingsForPath[ index ] = lastCached; + bindingsForPath[ firstActiveIndex ] = last; + bindingsForPath.pop(); + + } + + } else { + + // object is active, just swap with the last and pop + + var lastIndex = -- nObjects, + lastObject = objects[ lastIndex ]; + + indicesByUUID[ lastObject.uuid ] = index; + objects[ index ] = lastObject; + objects.pop(); + + // accounting is done, now do the same for all bindings + + for ( var j = 0, m = nBindings; j !== m; ++ j ) { + + var bindingsForPath = bindings[ j ]; + + bindingsForPath[ index ] = bindingsForPath[ lastIndex ]; + bindingsForPath.pop(); + + } + + } // cached or active + + } // if object is known + + } // for arguments + + this.nCachedObjects_ = nCachedObjects; + + }, + + // Internal interface used by befriended PropertyBinding.Composite: + + subscribe_: function( path, parsedPath ) { + // returns an array of bindings for the given path that is changed + // according to the contained objects in the group + + var indicesByPath = this._bindingsIndicesByPath, + index = indicesByPath[ path ], + bindings = this._bindings; + + if ( index !== undefined ) return bindings[ index ]; + + var paths = this._paths, + parsedPaths = this._parsedPaths, + objects = this._objects, + nObjects = objects.length, + nCachedObjects = this.nCachedObjects_, + bindingsForPath = new Array( nObjects ); + + index = bindings.length; + + indicesByPath[ path ] = index; + + paths.push( path ); + parsedPaths.push( parsedPath ); + bindings.push( bindingsForPath ); + + for ( var i = nCachedObjects, + n = objects.length; i !== n; ++ i ) { + + var object = objects[ i ]; + + bindingsForPath[ i ] = + new PropertyBinding( object, path, parsedPath ); + + } + + return bindingsForPath; + + }, + + unsubscribe_: function( path ) { + // tells the group to forget about a property path and no longer + // update the array previously obtained with 'subscribe_' + + var indicesByPath = this._bindingsIndicesByPath, + index = indicesByPath[ path ]; + + if ( index !== undefined ) { + + var paths = this._paths, + parsedPaths = this._parsedPaths, + bindings = this._bindings, + lastBindingsIndex = bindings.length - 1, + lastBindings = bindings[ lastBindingsIndex ], + lastBindingsPath = path[ lastBindingsIndex ]; + + indicesByPath[ lastBindingsPath ] = index; + + bindings[ index ] = lastBindings; + bindings.pop(); + + parsedPaths[ index ] = parsedPaths[ lastBindingsIndex ]; + parsedPaths.pop(); + + paths[ index ] = paths[ lastBindingsIndex ]; + paths.pop(); + + } + + } + + }; + + /** + * + * Action provided by AnimationMixer for scheduling clip playback on specific + * objects. + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + * + */ + + function AnimationAction( mixer, clip, localRoot ) { + + this._mixer = mixer; + this._clip = clip; + this._localRoot = localRoot || null; + + var tracks = clip.tracks, + nTracks = tracks.length, + interpolants = new Array( nTracks ); + + var interpolantSettings = { + endingStart: ZeroCurvatureEnding, + endingEnd: ZeroCurvatureEnding + }; + + for ( var i = 0; i !== nTracks; ++ i ) { + + var interpolant = tracks[ i ].createInterpolant( null ); + interpolants[ i ] = interpolant; + interpolant.settings = interpolantSettings; + + } + + this._interpolantSettings = interpolantSettings; + + this._interpolants = interpolants; // bound by the mixer + + // inside: PropertyMixer (managed by the mixer) + this._propertyBindings = new Array( nTracks ); + + this._cacheIndex = null; // for the memory manager + this._byClipCacheIndex = null; // for the memory manager + + this._timeScaleInterpolant = null; + this._weightInterpolant = null; + + this.loop = LoopRepeat; + this._loopCount = -1; + + // global mixer time when the action is to be started + // it's set back to 'null' upon start of the action + this._startTime = null; + + // scaled local time of the action + // gets clamped or wrapped to 0..clip.duration according to loop + this.time = 0; + + this.timeScale = 1; + this._effectiveTimeScale = 1; + + this.weight = 1; + this._effectiveWeight = 1; + + this.repetitions = Infinity; // no. of repetitions when looping + + this.paused = false; // false -> zero effective time scale + this.enabled = true; // true -> zero effective weight + + this.clampWhenFinished = false; // keep feeding the last frame? + + this.zeroSlopeAtStart = true; // for smooth interpolation w/o separate + this.zeroSlopeAtEnd = true; // clips for start, loop and end + + } + + AnimationAction.prototype = { + + constructor: AnimationAction, + + // State & Scheduling + + play: function() { + + this._mixer._activateAction( this ); + + return this; + + }, + + stop: function() { + + this._mixer._deactivateAction( this ); + + return this.reset(); + + }, + + reset: function() { + + this.paused = false; + this.enabled = true; + + this.time = 0; // restart clip + this._loopCount = -1; // forget previous loops + this._startTime = null; // forget scheduling + + return this.stopFading().stopWarping(); + + }, + + isRunning: function() { + + return this.enabled && ! this.paused && this.timeScale !== 0 && + this._startTime === null && this._mixer._isActiveAction( this ); + + }, + + // return true when play has been called + isScheduled: function() { + + return this._mixer._isActiveAction( this ); + + }, + + startAt: function( time ) { + + this._startTime = time; + + return this; + + }, + + setLoop: function( mode, repetitions ) { + + this.loop = mode; + this.repetitions = repetitions; + + return this; + + }, + + // Weight + + // set the weight stopping any scheduled fading + // although .enabled = false yields an effective weight of zero, this + // method does *not* change .enabled, because it would be confusing + setEffectiveWeight: function( weight ) { + + this.weight = weight; + + // note: same logic as when updated at runtime + this._effectiveWeight = this.enabled ? weight : 0; + + return this.stopFading(); + + }, + + // return the weight considering fading and .enabled + getEffectiveWeight: function() { + + return this._effectiveWeight; + + }, + + fadeIn: function( duration ) { + + return this._scheduleFading( duration, 0, 1 ); + + }, + + fadeOut: function( duration ) { + + return this._scheduleFading( duration, 1, 0 ); + + }, + + crossFadeFrom: function( fadeOutAction, duration, warp ) { + + fadeOutAction.fadeOut( duration ); + this.fadeIn( duration ); + + if( warp ) { + + var fadeInDuration = this._clip.duration, + fadeOutDuration = fadeOutAction._clip.duration, + + startEndRatio = fadeOutDuration / fadeInDuration, + endStartRatio = fadeInDuration / fadeOutDuration; + + fadeOutAction.warp( 1.0, startEndRatio, duration ); + this.warp( endStartRatio, 1.0, duration ); + + } + + return this; + + }, + + crossFadeTo: function( fadeInAction, duration, warp ) { + + return fadeInAction.crossFadeFrom( this, duration, warp ); + + }, + + stopFading: function() { + + var weightInterpolant = this._weightInterpolant; + + if ( weightInterpolant !== null ) { + + this._weightInterpolant = null; + this._mixer._takeBackControlInterpolant( weightInterpolant ); + + } + + return this; + + }, + + // Time Scale Control + + // set the weight stopping any scheduled warping + // although .paused = true yields an effective time scale of zero, this + // method does *not* change .paused, because it would be confusing + setEffectiveTimeScale: function( timeScale ) { + + this.timeScale = timeScale; + this._effectiveTimeScale = this.paused ? 0 :timeScale; + + return this.stopWarping(); + + }, + + // return the time scale considering warping and .paused + getEffectiveTimeScale: function() { + + return this._effectiveTimeScale; + + }, + + setDuration: function( duration ) { + + this.timeScale = this._clip.duration / duration; + + return this.stopWarping(); + + }, + + syncWith: function( action ) { + + this.time = action.time; + this.timeScale = action.timeScale; + + return this.stopWarping(); + + }, + + halt: function( duration ) { + + return this.warp( this._effectiveTimeScale, 0, duration ); + + }, + + warp: function( startTimeScale, endTimeScale, duration ) { + + var mixer = this._mixer, now = mixer.time, + interpolant = this._timeScaleInterpolant, + + timeScale = this.timeScale; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(), + this._timeScaleInterpolant = interpolant; + + } + + var times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; + times[ 1 ] = now + duration; + + values[ 0 ] = startTimeScale / timeScale; + values[ 1 ] = endTimeScale / timeScale; + + return this; + + }, + + stopWarping: function() { + + var timeScaleInterpolant = this._timeScaleInterpolant; + + if ( timeScaleInterpolant !== null ) { + + this._timeScaleInterpolant = null; + this._mixer._takeBackControlInterpolant( timeScaleInterpolant ); + + } + + return this; + + }, + + // Object Accessors + + getMixer: function() { + + return this._mixer; + + }, + + getClip: function() { + + return this._clip; + + }, + + getRoot: function() { + + return this._localRoot || this._mixer._root; + + }, + + // Interna + + _update: function( time, deltaTime, timeDirection, accuIndex ) { + // called by the mixer + + var startTime = this._startTime; + + if ( startTime !== null ) { + + // check for scheduled start of action + + var timeRunning = ( time - startTime ) * timeDirection; + if ( timeRunning < 0 || timeDirection === 0 ) { + + return; // yet to come / don't decide when delta = 0 + + } + + // start + + this._startTime = null; // unschedule + deltaTime = timeDirection * timeRunning; + + } + + // apply time scale and advance time + + deltaTime *= this._updateTimeScale( time ); + var clipTime = this._updateTime( deltaTime ); + + // note: _updateTime may disable the action resulting in + // an effective weight of 0 + + var weight = this._updateWeight( time ); + + if ( weight > 0 ) { + + var interpolants = this._interpolants; + var propertyMixers = this._propertyBindings; + + for ( var j = 0, m = interpolants.length; j !== m; ++ j ) { + + interpolants[ j ].evaluate( clipTime ); + propertyMixers[ j ].accumulate( accuIndex, weight ); + + } + + } + + }, + + _updateWeight: function( time ) { + + var weight = 0; + + if ( this.enabled ) { + + weight = this.weight; + var interpolant = this._weightInterpolant; + + if ( interpolant !== null ) { + + var interpolantValue = interpolant.evaluate( time )[ 0 ]; + + weight *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopFading(); + + if ( interpolantValue === 0 ) { + + // faded out, disable + this.enabled = false; + + } + + } + + } + + } + + this._effectiveWeight = weight; + return weight; + + }, + + _updateTimeScale: function( time ) { + + var timeScale = 0; + + if ( ! this.paused ) { + + timeScale = this.timeScale; + + var interpolant = this._timeScaleInterpolant; + + if ( interpolant !== null ) { + + var interpolantValue = interpolant.evaluate( time )[ 0 ]; + + timeScale *= interpolantValue; + + if ( time > interpolant.parameterPositions[ 1 ] ) { + + this.stopWarping(); + + if ( timeScale === 0 ) { + + // motion has halted, pause + this.paused = true; + + } else { + + // warp done - apply final time scale + this.timeScale = timeScale; + + } + + } + + } + + } + + this._effectiveTimeScale = timeScale; + return timeScale; + + }, + + _updateTime: function( deltaTime ) { + + var time = this.time + deltaTime; + + if ( deltaTime === 0 ) return time; + + var duration = this._clip.duration, + + loop = this.loop, + loopCount = this._loopCount; + + if ( loop === LoopOnce ) { + + if ( loopCount === -1 ) { + // just started + + this.loopCount = 0; + this._setEndings( true, true, false ); + + } + + handle_stop: { + + if ( time >= duration ) { + + time = duration; + + } else if ( time < 0 ) { + + time = 0; + + } else break handle_stop; + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime < 0 ? -1 : 1 + } ); + + } + + } else { // repetitive Repeat or PingPong + + var pingPong = ( loop === LoopPingPong ); + + if ( loopCount === -1 ) { + // just started + + if ( deltaTime >= 0 ) { + + loopCount = 0; + + this._setEndings( + true, this.repetitions === 0, pingPong ); + + } else { + + // when looping in reverse direction, the initial + // transition through zero counts as a repetition, + // so leave loopCount at -1 + + this._setEndings( + this.repetitions === 0, true, pingPong ); + + } + + } + + if ( time >= duration || time < 0 ) { + // wrap around + + var loopDelta = Math.floor( time / duration ); // signed + time -= duration * loopDelta; + + loopCount += Math.abs( loopDelta ); + + var pending = this.repetitions - loopCount; + + if ( pending < 0 ) { + // have to stop (switch state, clamp time, fire event) + + if ( this.clampWhenFinished ) this.paused = true; + else this.enabled = false; + + time = deltaTime > 0 ? duration : 0; + + this._mixer.dispatchEvent( { + type: 'finished', action: this, + direction: deltaTime > 0 ? 1 : -1 + } ); + + } else { + // keep running + + if ( pending === 0 ) { + // entering the last round + + var atStart = deltaTime < 0; + this._setEndings( atStart, ! atStart, pingPong ); + + } else { + + this._setEndings( false, false, pingPong ); + + } + + this._loopCount = loopCount; + + this._mixer.dispatchEvent( { + type: 'loop', action: this, loopDelta: loopDelta + } ); + + } + + } + + if ( pingPong && ( loopCount & 1 ) === 1 ) { + // invert time for the "pong round" + + this.time = time; + return duration - time; + + } + + } + + this.time = time; + return time; + + }, + + _setEndings: function( atStart, atEnd, pingPong ) { + + var settings = this._interpolantSettings; + + if ( pingPong ) { + + settings.endingStart = ZeroSlopeEnding; + settings.endingEnd = ZeroSlopeEnding; + + } else { + + // assuming for LoopOnce atStart == atEnd == true + + if ( atStart ) { + + settings.endingStart = this.zeroSlopeAtStart ? + ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingStart = WrapAroundEnding; + + } + + if ( atEnd ) { + + settings.endingEnd = this.zeroSlopeAtEnd ? + ZeroSlopeEnding : ZeroCurvatureEnding; + + } else { + + settings.endingEnd = WrapAroundEnding; + + } + + } + + }, + + _scheduleFading: function( duration, weightNow, weightThen ) { + + var mixer = this._mixer, now = mixer.time, + interpolant = this._weightInterpolant; + + if ( interpolant === null ) { + + interpolant = mixer._lendControlInterpolant(), + this._weightInterpolant = interpolant; + + } + + var times = interpolant.parameterPositions, + values = interpolant.sampleValues; + + times[ 0 ] = now; values[ 0 ] = weightNow; + times[ 1 ] = now + duration; values[ 1 ] = weightThen; + + return this; + + } + + }; + + /** + * + * Player for AnimationClips. + * + * + * @author Ben Houston / http://clara.io/ + * @author David Sarno / http://lighthaus.us/ + * @author tschw + */ + + function AnimationMixer( root ) { + + this._root = root; + this._initMemoryManager(); + this._accuIndex = 0; + + this.time = 0; + + this.timeScale = 1.0; + + } + + Object.assign( AnimationMixer.prototype, EventDispatcher.prototype, { + + // return an action for a clip optionally using a custom root target + // object (this method allocates a lot of dynamic memory in case a + // previously unknown clip/root combination is specified) + clipAction: function( clip, optionalRoot ) { + + var root = optionalRoot || this._root, + rootUuid = root.uuid, + + clipObject = typeof clip === 'string' ? + AnimationClip.findByName( root, clip ) : clip, + + clipUuid = clipObject !== null ? clipObject.uuid : clip, + + actionsForClip = this._actionsByClip[ clipUuid ], + prototypeAction = null; + + if ( actionsForClip !== undefined ) { + + var existingAction = + actionsForClip.actionByRoot[ rootUuid ]; + + if ( existingAction !== undefined ) { + + return existingAction; + + } + + // we know the clip, so we don't have to parse all + // the bindings again but can just copy + prototypeAction = actionsForClip.knownActions[ 0 ]; + + // also, take the clip from the prototype action + if ( clipObject === null ) + clipObject = prototypeAction._clip; + + } + + // clip must be known when specified via string + if ( clipObject === null ) return null; + + // allocate all resources required to run it + var newAction = new AnimationAction( this, clipObject, optionalRoot ); + + this._bindAction( newAction, prototypeAction ); + + // and make the action known to the memory manager + this._addInactiveAction( newAction, clipUuid, rootUuid ); + + return newAction; + + }, + + // get an existing action + existingAction: function( clip, optionalRoot ) { + + var root = optionalRoot || this._root, + rootUuid = root.uuid, + + clipObject = typeof clip === 'string' ? + AnimationClip.findByName( root, clip ) : clip, + + clipUuid = clipObject ? clipObject.uuid : clip, + + actionsForClip = this._actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + return actionsForClip.actionByRoot[ rootUuid ] || null; + + } + + return null; + + }, + + // deactivates all previously scheduled actions + stopAllAction: function() { + + var actions = this._actions, + nActions = this._nActiveActions, + bindings = this._bindings, + nBindings = this._nActiveBindings; + + this._nActiveActions = 0; + this._nActiveBindings = 0; + + for ( var i = 0; i !== nActions; ++ i ) { + + actions[ i ].reset(); + + } + + for ( var i = 0; i !== nBindings; ++ i ) { + + bindings[ i ].useCount = 0; + + } + + return this; + + }, + + // advance the time and update apply the animation + update: function( deltaTime ) { + + deltaTime *= this.timeScale; + + var actions = this._actions, + nActions = this._nActiveActions, + + time = this.time += deltaTime, + timeDirection = Math.sign( deltaTime ), + + accuIndex = this._accuIndex ^= 1; + + // run active actions + + for ( var i = 0; i !== nActions; ++ i ) { + + var action = actions[ i ]; + + if ( action.enabled ) { + + action._update( time, deltaTime, timeDirection, accuIndex ); + + } + + } + + // update scene graph + + var bindings = this._bindings, + nBindings = this._nActiveBindings; + + for ( var i = 0; i !== nBindings; ++ i ) { + + bindings[ i ].apply( accuIndex ); + + } + + return this; + + }, + + // return this mixer's root target object + getRoot: function() { + + return this._root; + + }, + + // free all resources specific to a particular clip + uncacheClip: function( clip ) { + + var actions = this._actions, + clipUuid = clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip !== undefined ) { + + // note: just calling _removeInactiveAction would mess up the + // iteration state and also require updating the state we can + // just throw away + + var actionsToRemove = actionsForClip.knownActions; + + for ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) { + + var action = actionsToRemove[ i ]; + + this._deactivateAction( action ); + + var cacheIndex = action._cacheIndex, + lastInactiveAction = actions[ actions.length - 1 ]; + + action._cacheIndex = null; + action._byClipCacheIndex = null; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + this._removeInactiveBindingsForAction( action ); + + } + + delete actionsByClip[ clipUuid ]; + + } + + }, + + // free all resources specific to a particular root target object + uncacheRoot: function( root ) { + + var rootUuid = root.uuid, + actionsByClip = this._actionsByClip; + + for ( var clipUuid in actionsByClip ) { + + var actionByRoot = actionsByClip[ clipUuid ].actionByRoot, + action = actionByRoot[ rootUuid ]; + + if ( action !== undefined ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + + var bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ]; + + if ( bindingByName !== undefined ) { + + for ( var trackName in bindingByName ) { + + var binding = bindingByName[ trackName ]; + binding.restoreOriginalState(); + this._removeInactiveBinding( binding ); + + } + + } + + }, + + // remove a targeted clip from the cache + uncacheAction: function( clip, optionalRoot ) { + + var action = this.existingAction( clip, optionalRoot ); + + if ( action !== null ) { + + this._deactivateAction( action ); + this._removeInactiveAction( action ); + + } + + } + + } ); + + // Implementation details: + + Object.assign( AnimationMixer.prototype, { + + _bindAction: function( action, prototypeAction ) { + + var root = action._localRoot || this._root, + tracks = action._clip.tracks, + nTracks = tracks.length, + bindings = action._propertyBindings, + interpolants = action._interpolants, + rootUuid = root.uuid, + bindingsByRoot = this._bindingsByRootAndName, + bindingsByName = bindingsByRoot[ rootUuid ]; + + if ( bindingsByName === undefined ) { + + bindingsByName = {}; + bindingsByRoot[ rootUuid ] = bindingsByName; + + } + + for ( var i = 0; i !== nTracks; ++ i ) { + + var track = tracks[ i ], + trackName = track.name, + binding = bindingsByName[ trackName ]; + + if ( binding !== undefined ) { + + bindings[ i ] = binding; + + } else { + + binding = bindings[ i ]; + + if ( binding !== undefined ) { + + // existing binding, make sure the cache knows + + if ( binding._cacheIndex === null ) { + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + } + + continue; + + } + + var path = prototypeAction && prototypeAction. + _propertyBindings[ i ].binding.parsedPath; + + binding = new PropertyMixer( + PropertyBinding.create( root, trackName, path ), + track.ValueTypeName, track.getValueSize() ); + + ++ binding.referenceCount; + this._addInactiveBinding( binding, rootUuid, trackName ); + + bindings[ i ] = binding; + + } + + interpolants[ i ].resultBuffer = binding.buffer; + + } + + }, + + _activateAction: function( action ) { + + if ( ! this._isActiveAction( action ) ) { + + if ( action._cacheIndex === null ) { + + // this action has been forgotten by the cache, but the user + // appears to be still using it -> rebind + + var rootUuid = ( action._localRoot || this._root ).uuid, + clipUuid = action._clip.uuid, + actionsForClip = this._actionsByClip[ clipUuid ]; + + this._bindAction( action, + actionsForClip && actionsForClip.knownActions[ 0 ] ); + + this._addInactiveAction( action, clipUuid, rootUuid ); + + } + + var bindings = action._propertyBindings; + + // increment reference counts / sort out state + for ( var i = 0, n = bindings.length; i !== n; ++ i ) { + + var binding = bindings[ i ]; + + if ( binding.useCount ++ === 0 ) { + + this._lendBinding( binding ); + binding.saveOriginalState(); + + } + + } + + this._lendAction( action ); + + } + + }, + + _deactivateAction: function( action ) { + + if ( this._isActiveAction( action ) ) { + + var bindings = action._propertyBindings; + + // decrement reference counts / sort out state + for ( var i = 0, n = bindings.length; i !== n; ++ i ) { + + var binding = bindings[ i ]; + + if ( -- binding.useCount === 0 ) { + + binding.restoreOriginalState(); + this._takeBackBinding( binding ); + + } + + } + + this._takeBackAction( action ); + + } + + }, + + // Memory manager + + _initMemoryManager: function() { + + this._actions = []; // 'nActiveActions' followed by inactive ones + this._nActiveActions = 0; + + this._actionsByClip = {}; + // inside: + // { + // knownActions: Array< AnimationAction > - used as prototypes + // actionByRoot: AnimationAction - lookup + // } + + + this._bindings = []; // 'nActiveBindings' followed by inactive ones + this._nActiveBindings = 0; + + this._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer > + + + this._controlInterpolants = []; // same game as above + this._nActiveControlInterpolants = 0; + + var scope = this; + + this.stats = { + + actions: { + get total() { return scope._actions.length; }, + get inUse() { return scope._nActiveActions; } + }, + bindings: { + get total() { return scope._bindings.length; }, + get inUse() { return scope._nActiveBindings; } + }, + controlInterpolants: { + get total() { return scope._controlInterpolants.length; }, + get inUse() { return scope._nActiveControlInterpolants; } + } + + }; + + }, + + // Memory management for AnimationAction objects + + _isActiveAction: function( action ) { + + var index = action._cacheIndex; + return index !== null && index < this._nActiveActions; + + }, + + _addInactiveAction: function( action, clipUuid, rootUuid ) { + + var actions = this._actions, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ]; + + if ( actionsForClip === undefined ) { + + actionsForClip = { + + knownActions: [ action ], + actionByRoot: {} + + }; + + action._byClipCacheIndex = 0; + + actionsByClip[ clipUuid ] = actionsForClip; + + } else { + + var knownActions = actionsForClip.knownActions; + + action._byClipCacheIndex = knownActions.length; + knownActions.push( action ); + + } + + action._cacheIndex = actions.length; + actions.push( action ); + + actionsForClip.actionByRoot[ rootUuid ] = action; + + }, + + _removeInactiveAction: function( action ) { + + var actions = this._actions, + lastInactiveAction = actions[ actions.length - 1 ], + cacheIndex = action._cacheIndex; + + lastInactiveAction._cacheIndex = cacheIndex; + actions[ cacheIndex ] = lastInactiveAction; + actions.pop(); + + action._cacheIndex = null; + + + var clipUuid = action._clip.uuid, + actionsByClip = this._actionsByClip, + actionsForClip = actionsByClip[ clipUuid ], + knownActionsForClip = actionsForClip.knownActions, + + lastKnownAction = + knownActionsForClip[ knownActionsForClip.length - 1 ], + + byClipCacheIndex = action._byClipCacheIndex; + + lastKnownAction._byClipCacheIndex = byClipCacheIndex; + knownActionsForClip[ byClipCacheIndex ] = lastKnownAction; + knownActionsForClip.pop(); + + action._byClipCacheIndex = null; + + + var actionByRoot = actionsForClip.actionByRoot, + rootUuid = ( actions._localRoot || this._root ).uuid; + + delete actionByRoot[ rootUuid ]; + + if ( knownActionsForClip.length === 0 ) { + + delete actionsByClip[ clipUuid ]; + + } + + this._removeInactiveBindingsForAction( action ); + + }, + + _removeInactiveBindingsForAction: function( action ) { + + var bindings = action._propertyBindings; + for ( var i = 0, n = bindings.length; i !== n; ++ i ) { + + var binding = bindings[ i ]; + + if ( -- binding.referenceCount === 0 ) { + + this._removeInactiveBinding( binding ); + + } + + } + + }, + + _lendAction: function( action ) { + + // [ active actions | inactive actions ] + // [ active actions >| inactive actions ] + // s a + // <-swap-> + // a s + + var actions = this._actions, + prevIndex = action._cacheIndex, + + lastActiveIndex = this._nActiveActions ++, + + firstInactiveAction = actions[ lastActiveIndex ]; + + action._cacheIndex = lastActiveIndex; + actions[ lastActiveIndex ] = action; + + firstInactiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = firstInactiveAction; + + }, + + _takeBackAction: function( action ) { + + // [ active actions | inactive actions ] + // [ active actions |< inactive actions ] + // a s + // <-swap-> + // s a + + var actions = this._actions, + prevIndex = action._cacheIndex, + + firstInactiveIndex = -- this._nActiveActions, + + lastActiveAction = actions[ firstInactiveIndex ]; + + action._cacheIndex = firstInactiveIndex; + actions[ firstInactiveIndex ] = action; + + lastActiveAction._cacheIndex = prevIndex; + actions[ prevIndex ] = lastActiveAction; + + }, + + // Memory management for PropertyMixer objects + + _addInactiveBinding: function( binding, rootUuid, trackName ) { + + var bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ], + + bindings = this._bindings; + + if ( bindingByName === undefined ) { + + bindingByName = {}; + bindingsByRoot[ rootUuid ] = bindingByName; + + } + + bindingByName[ trackName ] = binding; + + binding._cacheIndex = bindings.length; + bindings.push( binding ); + + }, + + _removeInactiveBinding: function( binding ) { + + var bindings = this._bindings, + propBinding = binding.binding, + rootUuid = propBinding.rootNode.uuid, + trackName = propBinding.path, + bindingsByRoot = this._bindingsByRootAndName, + bindingByName = bindingsByRoot[ rootUuid ], + + lastInactiveBinding = bindings[ bindings.length - 1 ], + cacheIndex = binding._cacheIndex; + + lastInactiveBinding._cacheIndex = cacheIndex; + bindings[ cacheIndex ] = lastInactiveBinding; + bindings.pop(); + + delete bindingByName[ trackName ]; + + remove_empty_map: { + + for ( var _ in bindingByName ) break remove_empty_map; + + delete bindingsByRoot[ rootUuid ]; + + } + + }, + + _lendBinding: function( binding ) { + + var bindings = this._bindings, + prevIndex = binding._cacheIndex, + + lastActiveIndex = this._nActiveBindings ++, + + firstInactiveBinding = bindings[ lastActiveIndex ]; + + binding._cacheIndex = lastActiveIndex; + bindings[ lastActiveIndex ] = binding; + + firstInactiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = firstInactiveBinding; + + }, + + _takeBackBinding: function( binding ) { + + var bindings = this._bindings, + prevIndex = binding._cacheIndex, + + firstInactiveIndex = -- this._nActiveBindings, + + lastActiveBinding = bindings[ firstInactiveIndex ]; + + binding._cacheIndex = firstInactiveIndex; + bindings[ firstInactiveIndex ] = binding; + + lastActiveBinding._cacheIndex = prevIndex; + bindings[ prevIndex ] = lastActiveBinding; + + }, + + + // Memory management of Interpolants for weight and time scale + + _lendControlInterpolant: function() { + + var interpolants = this._controlInterpolants, + lastActiveIndex = this._nActiveControlInterpolants ++, + interpolant = interpolants[ lastActiveIndex ]; + + if ( interpolant === undefined ) { + + interpolant = new LinearInterpolant( + new Float32Array( 2 ), new Float32Array( 2 ), + 1, this._controlInterpolantsResultBuffer ); + + interpolant.__cacheIndex = lastActiveIndex; + interpolants[ lastActiveIndex ] = interpolant; + + } + + return interpolant; + + }, + + _takeBackControlInterpolant: function( interpolant ) { + + var interpolants = this._controlInterpolants, + prevIndex = interpolant.__cacheIndex, + + firstInactiveIndex = -- this._nActiveControlInterpolants, + + lastActiveInterpolant = interpolants[ firstInactiveIndex ]; + + interpolant.__cacheIndex = firstInactiveIndex; + interpolants[ firstInactiveIndex ] = interpolant; + + lastActiveInterpolant.__cacheIndex = prevIndex; + interpolants[ prevIndex ] = lastActiveInterpolant; + + }, + + _controlInterpolantsResultBuffer: new Float32Array( 1 ) + + } ); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Uniform( value ) { + + if ( typeof value === 'string' ) { + + console.warn( 'THREE.Uniform: Type parameter is no longer needed.' ); + value = arguments[ 1 ]; + + } + + this.value = value; + + } + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function InstancedBufferGeometry() { + + BufferGeometry.call( this ); + + this.type = 'InstancedBufferGeometry'; + this.maxInstancedCount = undefined; + + } + + InstancedBufferGeometry.prototype = Object.create( BufferGeometry.prototype ); + InstancedBufferGeometry.prototype.constructor = InstancedBufferGeometry; + + InstancedBufferGeometry.prototype.isInstancedBufferGeometry = true; + + InstancedBufferGeometry.prototype.addGroup = function ( start, count, materialIndex ) { + + this.groups.push( { + + start: start, + count: count, + materialIndex: materialIndex + + } ); + + }; + + InstancedBufferGeometry.prototype.copy = function ( source ) { + + var index = source.index; + + if ( index !== null ) { + + this.setIndex( index.clone() ); + + } + + var attributes = source.attributes; + + for ( var name in attributes ) { + + var attribute = attributes[ name ]; + this.addAttribute( name, attribute.clone() ); + + } + + var groups = source.groups; + + for ( var i = 0, l = groups.length; i < l; i ++ ) { + + var group = groups[ i ]; + this.addGroup( group.start, group.count, group.materialIndex ); + + } + + return this; + + }; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) { + + this.uuid = _Math.generateUUID(); + + this.data = interleavedBuffer; + this.itemSize = itemSize; + this.offset = offset; + + this.normalized = normalized === true; + + } + + + InterleavedBufferAttribute.prototype = { + + constructor: InterleavedBufferAttribute, + + isInterleavedBufferAttribute: true, + + get count() { + + return this.data.count; + + }, + + get array() { + + return this.data.array; + + }, + + setX: function ( index, x ) { + + this.data.array[ index * this.data.stride + this.offset ] = x; + + return this; + + }, + + setY: function ( index, y ) { + + this.data.array[ index * this.data.stride + this.offset + 1 ] = y; + + return this; + + }, + + setZ: function ( index, z ) { + + this.data.array[ index * this.data.stride + this.offset + 2 ] = z; + + return this; + + }, + + setW: function ( index, w ) { + + this.data.array[ index * this.data.stride + this.offset + 3 ] = w; + + return this; + + }, + + getX: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset ]; + + }, + + getY: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 1 ]; + + }, + + getZ: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 2 ]; + + }, + + getW: function ( index ) { + + return this.data.array[ index * this.data.stride + this.offset + 3 ]; + + }, + + setXY: function ( index, x, y ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + + return this; + + }, + + setXYZ: function ( index, x, y, z ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + + return this; + + }, + + setXYZW: function ( index, x, y, z, w ) { + + index = index * this.data.stride + this.offset; + + this.data.array[ index + 0 ] = x; + this.data.array[ index + 1 ] = y; + this.data.array[ index + 2 ] = z; + this.data.array[ index + 3 ] = w; + + return this; + + } + + }; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function InterleavedBuffer( array, stride ) { + + this.uuid = _Math.generateUUID(); + + this.array = array; + this.stride = stride; + this.count = array !== undefined ? array.length / stride : 0; + + this.dynamic = false; + this.updateRange = { offset: 0, count: - 1 }; + + this.version = 0; + + } + + InterleavedBuffer.prototype = { + + constructor: InterleavedBuffer, + + isInterleavedBuffer: true, + + set needsUpdate( value ) { + + if ( value === true ) this.version ++; + + }, + + setArray: function ( array ) { + + if ( Array.isArray( array ) ) { + + throw new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' ); + + } + + this.count = array !== undefined ? array.length / this.stride : 0; + this.array = array; + + }, + + setDynamic: function ( value ) { + + this.dynamic = value; + + return this; + + }, + + copy: function ( source ) { + + this.array = new source.array.constructor( source.array ); + this.count = source.count; + this.stride = source.stride; + this.dynamic = source.dynamic; + + return this; + + }, + + copyAt: function ( index1, attribute, index2 ) { + + index1 *= this.stride; + index2 *= attribute.stride; + + for ( var i = 0, l = this.stride; i < l; i ++ ) { + + this.array[ index1 + i ] = attribute.array[ index2 + i ]; + + } + + return this; + + }, + + set: function ( value, offset ) { + + if ( offset === undefined ) offset = 0; + + this.array.set( value, offset ); + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + } + + }; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function InstancedInterleavedBuffer( array, stride, meshPerAttribute ) { + + InterleavedBuffer.call( this, array, stride ); + + this.meshPerAttribute = meshPerAttribute || 1; + + } + + InstancedInterleavedBuffer.prototype = Object.create( InterleavedBuffer.prototype ); + InstancedInterleavedBuffer.prototype.constructor = InstancedInterleavedBuffer; + + InstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true; + + InstancedInterleavedBuffer.prototype.copy = function ( source ) { + + InterleavedBuffer.prototype.copy.call( this, source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + }; + + /** + * @author benaadams / https://twitter.com/ben_a_adams + */ + + function InstancedBufferAttribute( array, itemSize, meshPerAttribute ) { + + BufferAttribute.call( this, array, itemSize ); + + this.meshPerAttribute = meshPerAttribute || 1; + + } + + InstancedBufferAttribute.prototype = Object.create( BufferAttribute.prototype ); + InstancedBufferAttribute.prototype.constructor = InstancedBufferAttribute; + + InstancedBufferAttribute.prototype.isInstancedBufferAttribute = true; + + InstancedBufferAttribute.prototype.copy = function ( source ) { + + BufferAttribute.prototype.copy.call( this, source ); + + this.meshPerAttribute = source.meshPerAttribute; + + return this; + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author bhouston / http://clara.io/ + * @author stephomi / http://stephaneginier.com/ + */ + + function Raycaster( origin, direction, near, far ) { + + this.ray = new Ray( origin, direction ); + // direction is assumed to be normalized (for accurate distance calculations) + + this.near = near || 0; + this.far = far || Infinity; + + this.params = { + Mesh: {}, + Line: {}, + LOD: {}, + Points: { threshold: 1 }, + Sprite: {} + }; + + Object.defineProperties( this.params, { + PointCloud: { + get: function () { + console.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' ); + return this.Points; + } + } + } ); + + } + + function ascSort( a, b ) { + + return a.distance - b.distance; + + } + + function intersectObject( object, raycaster, intersects, recursive ) { + + if ( object.visible === false ) return; + + object.raycast( raycaster, intersects ); + + if ( recursive === true ) { + + var children = object.children; + + for ( var i = 0, l = children.length; i < l; i ++ ) { + + intersectObject( children[ i ], raycaster, intersects, true ); + + } + + } + + } + + // + + Raycaster.prototype = { + + constructor: Raycaster, + + linePrecision: 1, + + set: function ( origin, direction ) { + + // direction is assumed to be normalized (for accurate distance calculations) + + this.ray.set( origin, direction ); + + }, + + setFromCamera: function ( coords, camera ) { + + if ( (camera && camera.isPerspectiveCamera) ) { + + this.ray.origin.setFromMatrixPosition( camera.matrixWorld ); + this.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize(); + + } else if ( (camera && camera.isOrthographicCamera) ) { + + this.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera + this.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld ); + + } else { + + console.error( 'THREE.Raycaster: Unsupported camera type.' ); + + } + + }, + + intersectObject: function ( object, recursive ) { + + var intersects = []; + + intersectObject( object, this, intersects, recursive ); + + intersects.sort( ascSort ); + + return intersects; + + }, + + intersectObjects: function ( objects, recursive ) { + + var intersects = []; + + if ( Array.isArray( objects ) === false ) { + + console.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' ); + return intersects; + + } + + for ( var i = 0, l = objects.length; i < l; i ++ ) { + + intersectObject( objects[ i ], this, intersects, recursive ); + + } + + intersects.sort( ascSort ); + + return intersects; + + } + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function Clock( autoStart ) { + + this.autoStart = ( autoStart !== undefined ) ? autoStart : true; + + this.startTime = 0; + this.oldTime = 0; + this.elapsedTime = 0; + + this.running = false; + + } + + Clock.prototype = { + + constructor: Clock, + + start: function () { + + this.startTime = ( performance || Date ).now(); + + this.oldTime = this.startTime; + this.elapsedTime = 0; + this.running = true; + + }, + + stop: function () { + + this.getElapsedTime(); + this.running = false; + + }, + + getElapsedTime: function () { + + this.getDelta(); + return this.elapsedTime; + + }, + + getDelta: function () { + + var diff = 0; + + if ( this.autoStart && ! this.running ) { + + this.start(); + + } + + if ( this.running ) { + + var newTime = ( performance || Date ).now(); + + diff = ( newTime - this.oldTime ) / 1000; + this.oldTime = newTime; + + this.elapsedTime += diff; + + } + + return diff; + + } + + }; + + /** + * Spline from Tween.js, slightly optimized (and trashed) + * http://sole.github.com/tween.js/examples/05_spline.html + * + * @author mrdoob / http://mrdoob.com/ + * @author alteredq / http://alteredqualia.com/ + */ + + function Spline( points ) { + + this.points = points; + + var c = [], v3 = { x: 0, y: 0, z: 0 }, + point, intPoint, weight, w2, w3, + pa, pb, pc, pd; + + this.initFromArray = function ( a ) { + + this.points = []; + + for ( var i = 0; i < a.length; i ++ ) { + + this.points[ i ] = { x: a[ i ][ 0 ], y: a[ i ][ 1 ], z: a[ i ][ 2 ] }; + + } + + }; + + this.getPoint = function ( k ) { + + point = ( this.points.length - 1 ) * k; + intPoint = Math.floor( point ); + weight = point - intPoint; + + c[ 0 ] = intPoint === 0 ? intPoint : intPoint - 1; + c[ 1 ] = intPoint; + c[ 2 ] = intPoint > this.points.length - 2 ? this.points.length - 1 : intPoint + 1; + c[ 3 ] = intPoint > this.points.length - 3 ? this.points.length - 1 : intPoint + 2; + + pa = this.points[ c[ 0 ] ]; + pb = this.points[ c[ 1 ] ]; + pc = this.points[ c[ 2 ] ]; + pd = this.points[ c[ 3 ] ]; + + w2 = weight * weight; + w3 = weight * w2; + + v3.x = interpolate( pa.x, pb.x, pc.x, pd.x, weight, w2, w3 ); + v3.y = interpolate( pa.y, pb.y, pc.y, pd.y, weight, w2, w3 ); + v3.z = interpolate( pa.z, pb.z, pc.z, pd.z, weight, w2, w3 ); + + return v3; + + }; + + this.getControlPointsArray = function () { + + var i, p, l = this.points.length, + coords = []; + + for ( i = 0; i < l; i ++ ) { + + p = this.points[ i ]; + coords[ i ] = [ p.x, p.y, p.z ]; + + } + + return coords; + + }; + + // approximate length by summing linear segments + + this.getLength = function ( nSubDivisions ) { + + var i, index, nSamples, position, + point = 0, intPoint = 0, oldIntPoint = 0, + oldPosition = new Vector3(), + tmpVec = new Vector3(), + chunkLengths = [], + totalLength = 0; + + // first point has 0 length + + chunkLengths[ 0 ] = 0; + + if ( ! nSubDivisions ) nSubDivisions = 100; + + nSamples = this.points.length * nSubDivisions; + + oldPosition.copy( this.points[ 0 ] ); + + for ( i = 1; i < nSamples; i ++ ) { + + index = i / nSamples; + + position = this.getPoint( index ); + tmpVec.copy( position ); + + totalLength += tmpVec.distanceTo( oldPosition ); + + oldPosition.copy( position ); + + point = ( this.points.length - 1 ) * index; + intPoint = Math.floor( point ); + + if ( intPoint !== oldIntPoint ) { + + chunkLengths[ intPoint ] = totalLength; + oldIntPoint = intPoint; + + } + + } + + // last point ends with total length + + chunkLengths[ chunkLengths.length ] = totalLength; + + return { chunks: chunkLengths, total: totalLength }; + + }; + + this.reparametrizeByArcLength = function ( samplingCoef ) { + + var i, j, + index, indexCurrent, indexNext, + realDistance, + sampling, position, + newpoints = [], + tmpVec = new Vector3(), + sl = this.getLength(); + + newpoints.push( tmpVec.copy( this.points[ 0 ] ).clone() ); + + for ( i = 1; i < this.points.length; i ++ ) { + + //tmpVec.copy( this.points[ i - 1 ] ); + //linearDistance = tmpVec.distanceTo( this.points[ i ] ); + + realDistance = sl.chunks[ i ] - sl.chunks[ i - 1 ]; + + sampling = Math.ceil( samplingCoef * realDistance / sl.total ); + + indexCurrent = ( i - 1 ) / ( this.points.length - 1 ); + indexNext = i / ( this.points.length - 1 ); + + for ( j = 1; j < sampling - 1; j ++ ) { + + index = indexCurrent + j * ( 1 / sampling ) * ( indexNext - indexCurrent ); + + position = this.getPoint( index ); + newpoints.push( tmpVec.copy( position ).clone() ); + + } + + newpoints.push( tmpVec.copy( this.points[ i ] ).clone() ); + + } + + this.points = newpoints; + + }; + + // Catmull-Rom + + function interpolate( p0, p1, p2, p3, t, t2, t3 ) { + + var v0 = ( p2 - p0 ) * 0.5, + v1 = ( p3 - p1 ) * 0.5; + + return ( 2 * ( p1 - p2 ) + v0 + v1 ) * t3 + ( - 3 * ( p1 - p2 ) - 2 * v0 - v1 ) * t2 + v0 * t + p1; + + } + + } + + /** + * @author bhouston / http://clara.io + * @author WestLangley / http://github.com/WestLangley + * + * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system + * + * The poles (phi) are at the positive and negative y axis. + * The equator starts at positive z. + */ + + function Spherical( radius, phi, theta ) { + + this.radius = ( radius !== undefined ) ? radius : 1.0; + this.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole + this.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere + + return this; + + } + + Spherical.prototype = { + + constructor: Spherical, + + set: function ( radius, phi, theta ) { + + this.radius = radius; + this.phi = phi; + this.theta = theta; + + return this; + + }, + + clone: function () { + + return new this.constructor().copy( this ); + + }, + + copy: function ( other ) { + + this.radius = other.radius; + this.phi = other.phi; + this.theta = other.theta; + + return this; + + }, + + // restrict phi to be betwee EPS and PI-EPS + makeSafe: function() { + + var EPS = 0.000001; + this.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) ); + + return this; + + }, + + setFromVector3: function( vec3 ) { + + this.radius = vec3.length(); + + if ( this.radius === 0 ) { + + this.theta = 0; + this.phi = 0; + + } else { + + this.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis + this.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle + + } + + return this; + + }, + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function MorphBlendMesh( geometry, material ) { + + Mesh.call( this, geometry, material ); + + this.animationsMap = {}; + this.animationsList = []; + + // prepare default animation + // (all frames played together in 1 second) + + var numFrames = this.geometry.morphTargets.length; + + var name = "__default"; + + var startFrame = 0; + var endFrame = numFrames - 1; + + var fps = numFrames / 1; + + this.createAnimation( name, startFrame, endFrame, fps ); + this.setAnimationWeight( name, 1 ); + + } + + MorphBlendMesh.prototype = Object.create( Mesh.prototype ); + MorphBlendMesh.prototype.constructor = MorphBlendMesh; + + MorphBlendMesh.prototype.createAnimation = function ( name, start, end, fps ) { + + var animation = { + + start: start, + end: end, + + length: end - start + 1, + + fps: fps, + duration: ( end - start ) / fps, + + lastFrame: 0, + currentFrame: 0, + + active: false, + + time: 0, + direction: 1, + weight: 1, + + directionBackwards: false, + mirroredLoop: false + + }; + + this.animationsMap[ name ] = animation; + this.animationsList.push( animation ); + + }; + + MorphBlendMesh.prototype.autoCreateAnimations = function ( fps ) { + + var pattern = /([a-z]+)_?(\d+)/i; + + var firstAnimation, frameRanges = {}; + + var geometry = this.geometry; + + for ( var i = 0, il = geometry.morphTargets.length; i < il; i ++ ) { + + var morph = geometry.morphTargets[ i ]; + var chunks = morph.name.match( pattern ); + + if ( chunks && chunks.length > 1 ) { + + var name = chunks[ 1 ]; + + if ( ! frameRanges[ name ] ) frameRanges[ name ] = { start: Infinity, end: - Infinity }; + + var range = frameRanges[ name ]; + + if ( i < range.start ) range.start = i; + if ( i > range.end ) range.end = i; + + if ( ! firstAnimation ) firstAnimation = name; + + } + + } + + for ( var name in frameRanges ) { + + var range = frameRanges[ name ]; + this.createAnimation( name, range.start, range.end, fps ); + + } + + this.firstAnimation = firstAnimation; + + }; + + MorphBlendMesh.prototype.setAnimationDirectionForward = function ( name ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.direction = 1; + animation.directionBackwards = false; + + } + + }; + + MorphBlendMesh.prototype.setAnimationDirectionBackward = function ( name ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.direction = - 1; + animation.directionBackwards = true; + + } + + }; + + MorphBlendMesh.prototype.setAnimationFPS = function ( name, fps ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.fps = fps; + animation.duration = ( animation.end - animation.start ) / animation.fps; + + } + + }; + + MorphBlendMesh.prototype.setAnimationDuration = function ( name, duration ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.duration = duration; + animation.fps = ( animation.end - animation.start ) / animation.duration; + + } + + }; + + MorphBlendMesh.prototype.setAnimationWeight = function ( name, weight ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.weight = weight; + + } + + }; + + MorphBlendMesh.prototype.setAnimationTime = function ( name, time ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.time = time; + + } + + }; + + MorphBlendMesh.prototype.getAnimationTime = function ( name ) { + + var time = 0; + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + time = animation.time; + + } + + return time; + + }; + + MorphBlendMesh.prototype.getAnimationDuration = function ( name ) { + + var duration = - 1; + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + duration = animation.duration; + + } + + return duration; + + }; + + MorphBlendMesh.prototype.playAnimation = function ( name ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.time = 0; + animation.active = true; + + } else { + + console.warn( "THREE.MorphBlendMesh: animation[" + name + "] undefined in .playAnimation()" ); + + } + + }; + + MorphBlendMesh.prototype.stopAnimation = function ( name ) { + + var animation = this.animationsMap[ name ]; + + if ( animation ) { + + animation.active = false; + + } + + }; + + MorphBlendMesh.prototype.update = function ( delta ) { + + for ( var i = 0, il = this.animationsList.length; i < il; i ++ ) { + + var animation = this.animationsList[ i ]; + + if ( ! animation.active ) continue; + + var frameTime = animation.duration / animation.length; + + animation.time += animation.direction * delta; + + if ( animation.mirroredLoop ) { + + if ( animation.time > animation.duration || animation.time < 0 ) { + + animation.direction *= - 1; + + if ( animation.time > animation.duration ) { + + animation.time = animation.duration; + animation.directionBackwards = true; + + } + + if ( animation.time < 0 ) { + + animation.time = 0; + animation.directionBackwards = false; + + } + + } + + } else { + + animation.time = animation.time % animation.duration; + + if ( animation.time < 0 ) animation.time += animation.duration; + + } + + var keyframe = animation.start + _Math.clamp( Math.floor( animation.time / frameTime ), 0, animation.length - 1 ); + var weight = animation.weight; + + if ( keyframe !== animation.currentFrame ) { + + this.morphTargetInfluences[ animation.lastFrame ] = 0; + this.morphTargetInfluences[ animation.currentFrame ] = 1 * weight; + + this.morphTargetInfluences[ keyframe ] = 0; + + animation.lastFrame = animation.currentFrame; + animation.currentFrame = keyframe; + + } + + var mix = ( animation.time % frameTime ) / frameTime; + + if ( animation.directionBackwards ) mix = 1 - mix; + + if ( animation.currentFrame !== animation.lastFrame ) { + + this.morphTargetInfluences[ animation.currentFrame ] = mix * weight; + this.morphTargetInfluences[ animation.lastFrame ] = ( 1 - mix ) * weight; + + } else { + + this.morphTargetInfluences[ animation.currentFrame ] = weight; + + } + + } + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + function ImmediateRenderObject( material ) { + + Object3D.call( this ); + + this.material = material; + this.render = function ( renderCallback ) {}; + + } + + ImmediateRenderObject.prototype = Object.create( Object3D.prototype ); + ImmediateRenderObject.prototype.constructor = ImmediateRenderObject; + + ImmediateRenderObject.prototype.isImmediateRenderObject = true; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function VertexNormalsHelper( object, size, hex, linewidth ) { + + this.object = object; + + this.size = ( size !== undefined ) ? size : 1; + + var color = ( hex !== undefined ) ? hex : 0xff0000; + + var width = ( linewidth !== undefined ) ? linewidth : 1; + + // + + var nNormals = 0; + + var objGeometry = this.object.geometry; + + if ( (objGeometry && objGeometry.isGeometry) ) { + + nNormals = objGeometry.faces.length * 3; + + } else if ( (objGeometry && objGeometry.isBufferGeometry) ) { + + nNormals = objGeometry.attributes.normal.count; + + } + + // + + var geometry = new BufferGeometry(); + + var positions = new Float32Attribute( nNormals * 2 * 3, 3 ); + + geometry.addAttribute( 'position', positions ); + + LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) ); + + // + + this.matrixAutoUpdate = false; + + this.update(); + + } + + VertexNormalsHelper.prototype = Object.create( LineSegments.prototype ); + VertexNormalsHelper.prototype.constructor = VertexNormalsHelper; + + VertexNormalsHelper.prototype.update = ( function () { + + var v1 = new Vector3(); + var v2 = new Vector3(); + var normalMatrix = new Matrix3(); + + return function update() { + + var keys = [ 'a', 'b', 'c' ]; + + this.object.updateMatrixWorld( true ); + + normalMatrix.getNormalMatrix( this.object.matrixWorld ); + + var matrixWorld = this.object.matrixWorld; + + var position = this.geometry.attributes.position; + + // + + var objGeometry = this.object.geometry; + + if ( (objGeometry && objGeometry.isGeometry) ) { + + var vertices = objGeometry.vertices; + + var faces = objGeometry.faces; + + var idx = 0; + + for ( var i = 0, l = faces.length; i < l; i ++ ) { + + var face = faces[ i ]; + + for ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) { + + var vertex = vertices[ face[ keys[ j ] ] ]; + + var normal = face.vertexNormals[ j ]; + + v1.copy( vertex ).applyMatrix4( matrixWorld ); + + v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 ); + + position.setXYZ( idx, v1.x, v1.y, v1.z ); + + idx = idx + 1; + + position.setXYZ( idx, v2.x, v2.y, v2.z ); + + idx = idx + 1; + + } + + } + + } else if ( (objGeometry && objGeometry.isBufferGeometry) ) { + + var objPos = objGeometry.attributes.position; + + var objNorm = objGeometry.attributes.normal; + + var idx = 0; + + // for simplicity, ignore index and drawcalls, and render every normal + + for ( var j = 0, jl = objPos.count; j < jl; j ++ ) { + + v1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld ); + + v2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) ); + + v2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 ); + + position.setXYZ( idx, v1.x, v1.y, v1.z ); + + idx = idx + 1; + + position.setXYZ( idx, v2.x, v2.y, v2.z ); + + idx = idx + 1; + + } + + } + + position.needsUpdate = true; + + return this; + + }; + + }() ); + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function SpotLightHelper( light ) { + + Object3D.call( this ); + + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + var geometry = new BufferGeometry(); + + var positions = [ + 0, 0, 0, 0, 0, 1, + 0, 0, 0, 1, 0, 1, + 0, 0, 0, - 1, 0, 1, + 0, 0, 0, 0, 1, 1, + 0, 0, 0, 0, - 1, 1 + ]; + + for ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) { + + var p1 = ( i / l ) * Math.PI * 2; + var p2 = ( j / l ) * Math.PI * 2; + + positions.push( + Math.cos( p1 ), Math.sin( p1 ), 1, + Math.cos( p2 ), Math.sin( p2 ), 1 + ); + + } + + geometry.addAttribute( 'position', new Float32Attribute( positions, 3 ) ); + + var material = new LineBasicMaterial( { fog: false } ); + + this.cone = new LineSegments( geometry, material ); + this.add( this.cone ); + + this.update(); + + } + + SpotLightHelper.prototype = Object.create( Object3D.prototype ); + SpotLightHelper.prototype.constructor = SpotLightHelper; + + SpotLightHelper.prototype.dispose = function () { + + this.cone.geometry.dispose(); + this.cone.material.dispose(); + + }; + + SpotLightHelper.prototype.update = function () { + + var vector = new Vector3(); + var vector2 = new Vector3(); + + return function update() { + + var coneLength = this.light.distance ? this.light.distance : 1000; + var coneWidth = coneLength * Math.tan( this.light.angle ); + + this.cone.scale.set( coneWidth, coneWidth, coneLength ); + + vector.setFromMatrixPosition( this.light.matrixWorld ); + vector2.setFromMatrixPosition( this.light.target.matrixWorld ); + + this.cone.lookAt( vector2.sub( vector ) ); + + this.cone.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity ); + + }; + + }(); + + /** + * @author Sean Griffin / http://twitter.com/sgrif + * @author Michael Guerrero / http://realitymeltdown.com + * @author mrdoob / http://mrdoob.com/ + * @author ikerr / http://verold.com + */ + + function SkeletonHelper( object ) { + + this.bones = this.getBoneList( object ); + + var geometry = new Geometry(); + + for ( var i = 0; i < this.bones.length; i ++ ) { + + var bone = this.bones[ i ]; + + if ( (bone.parent && bone.parent.isBone) ) { + + geometry.vertices.push( new Vector3() ); + geometry.vertices.push( new Vector3() ); + geometry.colors.push( new Color( 0, 0, 1 ) ); + geometry.colors.push( new Color( 0, 1, 0 ) ); + + } + + } + + geometry.dynamic = true; + + var material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } ); + + LineSegments.call( this, geometry, material ); + + this.root = object; + + this.matrix = object.matrixWorld; + this.matrixAutoUpdate = false; + + this.update(); + + } + + + SkeletonHelper.prototype = Object.create( LineSegments.prototype ); + SkeletonHelper.prototype.constructor = SkeletonHelper; + + SkeletonHelper.prototype.getBoneList = function( object ) { + + var boneList = []; + + if ( (object && object.isBone) ) { + + boneList.push( object ); + + } + + for ( var i = 0; i < object.children.length; i ++ ) { + + boneList.push.apply( boneList, this.getBoneList( object.children[ i ] ) ); + + } + + return boneList; + + }; + + SkeletonHelper.prototype.update = function () { + + var geometry = this.geometry; + + var matrixWorldInv = new Matrix4().getInverse( this.root.matrixWorld ); + + var boneMatrix = new Matrix4(); + + var j = 0; + + for ( var i = 0; i < this.bones.length; i ++ ) { + + var bone = this.bones[ i ]; + + if ( (bone.parent && bone.parent.isBone) ) { + + boneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld ); + geometry.vertices[ j ].setFromMatrixPosition( boneMatrix ); + + boneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld ); + geometry.vertices[ j + 1 ].setFromMatrixPosition( boneMatrix ); + + j += 2; + + } + + } + + geometry.verticesNeedUpdate = true; + + geometry.computeBoundingSphere(); + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + function PointLightHelper( light, sphereSize ) { + + this.light = light; + this.light.updateMatrixWorld(); + + var geometry = new SphereBufferGeometry( sphereSize, 4, 2 ); + var material = new MeshBasicMaterial( { wireframe: true, fog: false } ); + material.color.copy( this.light.color ).multiplyScalar( this.light.intensity ); + + Mesh.call( this, geometry, material ); + + this.matrix = this.light.matrixWorld; + this.matrixAutoUpdate = false; + + /* + var distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 ); + var distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } ); + + this.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial ); + this.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial ); + + var d = light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.scale.set( d, d, d ); + + } + + this.add( this.lightDistance ); + */ + + } + + PointLightHelper.prototype = Object.create( Mesh.prototype ); + PointLightHelper.prototype.constructor = PointLightHelper; + + PointLightHelper.prototype.dispose = function () { + + this.geometry.dispose(); + this.material.dispose(); + + }; + + PointLightHelper.prototype.update = function () { + + this.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity ); + + /* + var d = this.light.distance; + + if ( d === 0.0 ) { + + this.lightDistance.visible = false; + + } else { + + this.lightDistance.visible = true; + this.lightDistance.scale.set( d, d, d ); + + } + */ + + }; + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + */ + + function HemisphereLightHelper( light, sphereSize ) { + + Object3D.call( this ); + + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + this.colors = [ new Color(), new Color() ]; + + var geometry = new SphereGeometry( sphereSize, 4, 2 ); + geometry.rotateX( - Math.PI / 2 ); + + for ( var i = 0, il = 8; i < il; i ++ ) { + + geometry.faces[ i ].color = this.colors[ i < 4 ? 0 : 1 ]; + + } + + var material = new MeshBasicMaterial( { vertexColors: FaceColors, wireframe: true } ); + + this.lightSphere = new Mesh( geometry, material ); + this.add( this.lightSphere ); + + this.update(); + + } + + HemisphereLightHelper.prototype = Object.create( Object3D.prototype ); + HemisphereLightHelper.prototype.constructor = HemisphereLightHelper; + + HemisphereLightHelper.prototype.dispose = function () { + + this.lightSphere.geometry.dispose(); + this.lightSphere.material.dispose(); + + }; + + HemisphereLightHelper.prototype.update = function () { + + var vector = new Vector3(); + + return function update() { + + this.colors[ 0 ].copy( this.light.color ).multiplyScalar( this.light.intensity ); + this.colors[ 1 ].copy( this.light.groundColor ).multiplyScalar( this.light.intensity ); + + this.lightSphere.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() ); + this.lightSphere.geometry.colorsNeedUpdate = true; + + }; + + }(); + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function GridHelper( size, divisions, color1, color2 ) { + + divisions = divisions || 1; + color1 = new Color( color1 !== undefined ? color1 : 0x444444 ); + color2 = new Color( color2 !== undefined ? color2 : 0x888888 ); + + var center = divisions / 2; + var step = ( size * 2 ) / divisions; + var vertices = [], colors = []; + + for ( var i = 0, j = 0, k = - size; i <= divisions; i ++, k += step ) { + + vertices.push( - size, 0, k, size, 0, k ); + vertices.push( k, 0, - size, k, 0, size ); + + var color = i === center ? color1 : color2; + + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + color.toArray( colors, j ); j += 3; + + } + + var geometry = new BufferGeometry(); + geometry.addAttribute( 'position', new Float32Attribute( vertices, 3 ) ); + geometry.addAttribute( 'color', new Float32Attribute( colors, 3 ) ); + + var material = new LineBasicMaterial( { vertexColors: VertexColors } ); + + LineSegments.call( this, geometry, material ); + + } + + GridHelper.prototype = Object.create( LineSegments.prototype ); + GridHelper.prototype.constructor = GridHelper; + + GridHelper.prototype.setColors = function () { + + console.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' ); + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function FaceNormalsHelper( object, size, hex, linewidth ) { + + // FaceNormalsHelper only supports THREE.Geometry + + this.object = object; + + this.size = ( size !== undefined ) ? size : 1; + + var color = ( hex !== undefined ) ? hex : 0xffff00; + + var width = ( linewidth !== undefined ) ? linewidth : 1; + + // + + var nNormals = 0; + + var objGeometry = this.object.geometry; + + if ( (objGeometry && objGeometry.isGeometry) ) { + + nNormals = objGeometry.faces.length; + + } else { + + console.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' ); + + } + + // + + var geometry = new BufferGeometry(); + + var positions = new Float32Attribute( nNormals * 2 * 3, 3 ); + + geometry.addAttribute( 'position', positions ); + + LineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) ); + + // + + this.matrixAutoUpdate = false; + this.update(); + + } + + FaceNormalsHelper.prototype = Object.create( LineSegments.prototype ); + FaceNormalsHelper.prototype.constructor = FaceNormalsHelper; + + FaceNormalsHelper.prototype.update = ( function () { + + var v1 = new Vector3(); + var v2 = new Vector3(); + var normalMatrix = new Matrix3(); + + return function update() { + + this.object.updateMatrixWorld( true ); + + normalMatrix.getNormalMatrix( this.object.matrixWorld ); + + var matrixWorld = this.object.matrixWorld; + + var position = this.geometry.attributes.position; + + // + + var objGeometry = this.object.geometry; + + var vertices = objGeometry.vertices; + + var faces = objGeometry.faces; + + var idx = 0; + + for ( var i = 0, l = faces.length; i < l; i ++ ) { + + var face = faces[ i ]; + + var normal = face.normal; + + v1.copy( vertices[ face.a ] ) + .add( vertices[ face.b ] ) + .add( vertices[ face.c ] ) + .divideScalar( 3 ) + .applyMatrix4( matrixWorld ); + + v2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 ); + + position.setXYZ( idx, v1.x, v1.y, v1.z ); + + idx = idx + 1; + + position.setXYZ( idx, v2.x, v2.y, v2.z ); + + idx = idx + 1; + + } + + position.needsUpdate = true; + + return this; + + }; + + }() ); + + /** + * @author alteredq / http://alteredqualia.com/ + * @author mrdoob / http://mrdoob.com/ + * @author WestLangley / http://github.com/WestLangley + */ + + function DirectionalLightHelper( light, size ) { + + Object3D.call( this ); + + this.light = light; + this.light.updateMatrixWorld(); + + this.matrix = light.matrixWorld; + this.matrixAutoUpdate = false; + + if ( size === undefined ) size = 1; + + var geometry = new BufferGeometry(); + geometry.addAttribute( 'position', new Float32Attribute( [ + - size, size, 0, + size, size, 0, + size, - size, 0, + - size, - size, 0, + - size, size, 0 + ], 3 ) ); + + var material = new LineBasicMaterial( { fog: false } ); + + this.add( new Line( geometry, material ) ); + + geometry = new BufferGeometry(); + geometry.addAttribute( 'position', new Float32Attribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) ); + + this.add( new Line( geometry, material )); + + this.update(); + + } + + DirectionalLightHelper.prototype = Object.create( Object3D.prototype ); + DirectionalLightHelper.prototype.constructor = DirectionalLightHelper; + + DirectionalLightHelper.prototype.dispose = function () { + + var lightPlane = this.children[ 0 ]; + var targetLine = this.children[ 1 ]; + + lightPlane.geometry.dispose(); + lightPlane.material.dispose(); + targetLine.geometry.dispose(); + targetLine.material.dispose(); + + }; + + DirectionalLightHelper.prototype.update = function () { + + var v1 = new Vector3(); + var v2 = new Vector3(); + var v3 = new Vector3(); + + return function update() { + + v1.setFromMatrixPosition( this.light.matrixWorld ); + v2.setFromMatrixPosition( this.light.target.matrixWorld ); + v3.subVectors( v2, v1 ); + + var lightPlane = this.children[ 0 ]; + var targetLine = this.children[ 1 ]; + + lightPlane.lookAt( v3 ); + lightPlane.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity ); + + targetLine.lookAt( v3 ); + targetLine.scale.z = v3.length(); + + }; + + }(); + + /** + * @author alteredq / http://alteredqualia.com/ + * + * - shows frustum, line of sight and up of the camera + * - suitable for fast updates + * - based on frustum visualization in lightgl.js shadowmap example + * http://evanw.github.com/lightgl.js/tests/shadowmap.html + */ + + function CameraHelper( camera ) { + + var geometry = new Geometry(); + var material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } ); + + var pointMap = {}; + + // colors + + var hexFrustum = 0xffaa00; + var hexCone = 0xff0000; + var hexUp = 0x00aaff; + var hexTarget = 0xffffff; + var hexCross = 0x333333; + + // near + + addLine( "n1", "n2", hexFrustum ); + addLine( "n2", "n4", hexFrustum ); + addLine( "n4", "n3", hexFrustum ); + addLine( "n3", "n1", hexFrustum ); + + // far + + addLine( "f1", "f2", hexFrustum ); + addLine( "f2", "f4", hexFrustum ); + addLine( "f4", "f3", hexFrustum ); + addLine( "f3", "f1", hexFrustum ); + + // sides + + addLine( "n1", "f1", hexFrustum ); + addLine( "n2", "f2", hexFrustum ); + addLine( "n3", "f3", hexFrustum ); + addLine( "n4", "f4", hexFrustum ); + + // cone + + addLine( "p", "n1", hexCone ); + addLine( "p", "n2", hexCone ); + addLine( "p", "n3", hexCone ); + addLine( "p", "n4", hexCone ); + + // up + + addLine( "u1", "u2", hexUp ); + addLine( "u2", "u3", hexUp ); + addLine( "u3", "u1", hexUp ); + + // target + + addLine( "c", "t", hexTarget ); + addLine( "p", "c", hexCross ); + + // cross + + addLine( "cn1", "cn2", hexCross ); + addLine( "cn3", "cn4", hexCross ); + + addLine( "cf1", "cf2", hexCross ); + addLine( "cf3", "cf4", hexCross ); + + function addLine( a, b, hex ) { + + addPoint( a, hex ); + addPoint( b, hex ); + + } + + function addPoint( id, hex ) { + + geometry.vertices.push( new Vector3() ); + geometry.colors.push( new Color( hex ) ); + + if ( pointMap[ id ] === undefined ) { + + pointMap[ id ] = []; + + } + + pointMap[ id ].push( geometry.vertices.length - 1 ); + + } + + LineSegments.call( this, geometry, material ); + + this.camera = camera; + if( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix(); + + this.matrix = camera.matrixWorld; + this.matrixAutoUpdate = false; + + this.pointMap = pointMap; + + this.update(); + + } + + CameraHelper.prototype = Object.create( LineSegments.prototype ); + CameraHelper.prototype.constructor = CameraHelper; + + CameraHelper.prototype.update = function () { + + var geometry, pointMap; + + var vector = new Vector3(); + var camera = new Camera(); + + function setPoint( point, x, y, z ) { + + vector.set( x, y, z ).unproject( camera ); + + var points = pointMap[ point ]; + + if ( points !== undefined ) { + + for ( var i = 0, il = points.length; i < il; i ++ ) { + + geometry.vertices[ points[ i ] ].copy( vector ); + + } + + } + + } + + return function update() { + + geometry = this.geometry; + pointMap = this.pointMap; + + var w = 1, h = 1; + + // we need just camera projection matrix + // world matrix must be identity + + camera.projectionMatrix.copy( this.camera.projectionMatrix ); + + // center / target + + setPoint( "c", 0, 0, - 1 ); + setPoint( "t", 0, 0, 1 ); + + // near + + setPoint( "n1", - w, - h, - 1 ); + setPoint( "n2", w, - h, - 1 ); + setPoint( "n3", - w, h, - 1 ); + setPoint( "n4", w, h, - 1 ); + + // far + + setPoint( "f1", - w, - h, 1 ); + setPoint( "f2", w, - h, 1 ); + setPoint( "f3", - w, h, 1 ); + setPoint( "f4", w, h, 1 ); + + // up + + setPoint( "u1", w * 0.7, h * 1.1, - 1 ); + setPoint( "u2", - w * 0.7, h * 1.1, - 1 ); + setPoint( "u3", 0, h * 2, - 1 ); + + // cross + + setPoint( "cf1", - w, 0, 1 ); + setPoint( "cf2", w, 0, 1 ); + setPoint( "cf3", 0, - h, 1 ); + setPoint( "cf4", 0, h, 1 ); + + setPoint( "cn1", - w, 0, - 1 ); + setPoint( "cn2", w, 0, - 1 ); + setPoint( "cn3", 0, - h, - 1 ); + setPoint( "cn4", 0, h, - 1 ); + + geometry.verticesNeedUpdate = true; + + }; + + }(); + + /** + * @author WestLangley / http://github.com/WestLangley + */ + + // a helper to show the world-axis-aligned bounding box for an object + + function BoundingBoxHelper( object, hex ) { + + var color = ( hex !== undefined ) ? hex : 0x888888; + + this.object = object; + + this.box = new Box3(); + + Mesh.call( this, new BoxGeometry( 1, 1, 1 ), new MeshBasicMaterial( { color: color, wireframe: true } ) ); + + } + + BoundingBoxHelper.prototype = Object.create( Mesh.prototype ); + BoundingBoxHelper.prototype.constructor = BoundingBoxHelper; + + BoundingBoxHelper.prototype.update = function () { + + this.box.setFromObject( this.object ); + + this.box.getSize( this.scale ); + + this.box.getCenter( this.position ); + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function BoxHelper( object, color ) { + + if ( color === undefined ) color = 0xffff00; + + var indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] ); + var positions = new Float32Array( 8 * 3 ); + + var geometry = new BufferGeometry(); + geometry.setIndex( new BufferAttribute( indices, 1 ) ); + geometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) ); + + LineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) ); + + if ( object !== undefined ) { + + this.update( object ); + + } + + } + + BoxHelper.prototype = Object.create( LineSegments.prototype ); + BoxHelper.prototype.constructor = BoxHelper; + + BoxHelper.prototype.update = ( function () { + + var box = new Box3(); + + return function update( object ) { + + if ( (object && object.isBox3) ) { + + box.copy( object ); + + } else { + + box.setFromObject( object ); + + } + + if ( box.isEmpty() ) return; + + var min = box.min; + var max = box.max; + + /* + 5____4 + 1/___0/| + | 6__|_7 + 2/___3/ + + 0: max.x, max.y, max.z + 1: min.x, max.y, max.z + 2: min.x, min.y, max.z + 3: max.x, min.y, max.z + 4: max.x, max.y, min.z + 5: min.x, max.y, min.z + 6: min.x, min.y, min.z + 7: max.x, min.y, min.z + */ + + var position = this.geometry.attributes.position; + var array = position.array; + + array[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z; + array[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z; + array[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z; + array[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z; + array[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z; + array[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z; + array[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z; + array[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z; + + position.needsUpdate = true; + + this.geometry.computeBoundingSphere(); + + }; + + } )(); + + /** + * @author WestLangley / http://github.com/WestLangley + * @author zz85 / http://github.com/zz85 + * @author bhouston / http://clara.io + * + * Creates an arrow for visualizing directions + * + * Parameters: + * dir - Vector3 + * origin - Vector3 + * length - Number + * color - color in hex value + * headLength - Number + * headWidth - Number + */ + + var lineGeometry = new BufferGeometry(); + lineGeometry.addAttribute( 'position', new Float32Attribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) ); + + var coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 ); + coneGeometry.translate( 0, - 0.5, 0 ); + + function ArrowHelper( dir, origin, length, color, headLength, headWidth ) { + + // dir is assumed to be normalized + + Object3D.call( this ); + + if ( color === undefined ) color = 0xffff00; + if ( length === undefined ) length = 1; + if ( headLength === undefined ) headLength = 0.2 * length; + if ( headWidth === undefined ) headWidth = 0.2 * headLength; + + this.position.copy( origin ); + + this.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) ); + this.line.matrixAutoUpdate = false; + this.add( this.line ); + + this.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) ); + this.cone.matrixAutoUpdate = false; + this.add( this.cone ); + + this.setDirection( dir ); + this.setLength( length, headLength, headWidth ); + + } + + ArrowHelper.prototype = Object.create( Object3D.prototype ); + ArrowHelper.prototype.constructor = ArrowHelper; + + ArrowHelper.prototype.setDirection = ( function () { + + var axis = new Vector3(); + var radians; + + return function setDirection( dir ) { + + // dir is assumed to be normalized + + if ( dir.y > 0.99999 ) { + + this.quaternion.set( 0, 0, 0, 1 ); + + } else if ( dir.y < - 0.99999 ) { + + this.quaternion.set( 1, 0, 0, 0 ); + + } else { + + axis.set( dir.z, 0, - dir.x ).normalize(); + + radians = Math.acos( dir.y ); + + this.quaternion.setFromAxisAngle( axis, radians ); + + } + + }; + + }() ); + + ArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) { + + if ( headLength === undefined ) headLength = 0.2 * length; + if ( headWidth === undefined ) headWidth = 0.2 * headLength; + + this.line.scale.set( 1, Math.max( 0, length - headLength ), 1 ); + this.line.updateMatrix(); + + this.cone.scale.set( headWidth, headLength, headWidth ); + this.cone.position.y = length; + this.cone.updateMatrix(); + + }; + + ArrowHelper.prototype.setColor = function ( color ) { + + this.line.material.color.copy( color ); + this.cone.material.color.copy( color ); + + }; + + /** + * @author sroucheray / http://sroucheray.org/ + * @author mrdoob / http://mrdoob.com/ + */ + + function AxisHelper( size ) { + + size = size || 1; + + var vertices = new Float32Array( [ + 0, 0, 0, size, 0, 0, + 0, 0, 0, 0, size, 0, + 0, 0, 0, 0, 0, size + ] ); + + var colors = new Float32Array( [ + 1, 0, 0, 1, 0.6, 0, + 0, 1, 0, 0.6, 1, 0, + 0, 0, 1, 0, 0.6, 1 + ] ); + + var geometry = new BufferGeometry(); + geometry.addAttribute( 'position', new BufferAttribute( vertices, 3 ) ); + geometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) ); + + var material = new LineBasicMaterial( { vertexColors: VertexColors } ); + + LineSegments.call( this, geometry, material ); + + } + + AxisHelper.prototype = Object.create( LineSegments.prototype ); + AxisHelper.prototype.constructor = AxisHelper; + + /** + * @author zz85 https://github.com/zz85 + * + * Centripetal CatmullRom Curve - which is useful for avoiding + * cusps and self-intersections in non-uniform catmull rom curves. + * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf + * + * curve.type accepts centripetal(default), chordal and catmullrom + * curve.tension is used for catmullrom which defaults to 0.5 + */ + + var CatmullRomCurve3 = ( function() { + + var + tmp = new Vector3(), + px = new CubicPoly(), + py = new CubicPoly(), + pz = new CubicPoly(); + + /* + Based on an optimized c++ solution in + - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/ + - http://ideone.com/NoEbVM + + This CubicPoly class could be used for reusing some variables and calculations, + but for three.js curve use, it could be possible inlined and flatten into a single function call + which can be placed in CurveUtils. + */ + + function CubicPoly() {} + + /* + * Compute coefficients for a cubic polynomial + * p(s) = c0 + c1*s + c2*s^2 + c3*s^3 + * such that + * p(0) = x0, p(1) = x1 + * and + * p'(0) = t0, p'(1) = t1. + */ + CubicPoly.prototype.init = function( x0, x1, t0, t1 ) { + + this.c0 = x0; + this.c1 = t0; + this.c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1; + this.c3 = 2 * x0 - 2 * x1 + t0 + t1; + + }; + + CubicPoly.prototype.initNonuniformCatmullRom = function( x0, x1, x2, x3, dt0, dt1, dt2 ) { + + // compute tangents when parameterized in [t1,t2] + var t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1; + var t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2; + + // rescale tangents for parametrization in [0,1] + t1 *= dt1; + t2 *= dt1; + + // initCubicPoly + this.init( x1, x2, t1, t2 ); + + }; + + // standard Catmull-Rom spline: interpolate between x1 and x2 with previous/following points x1/x4 + CubicPoly.prototype.initCatmullRom = function( x0, x1, x2, x3, tension ) { + + this.init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) ); + + }; + + CubicPoly.prototype.calc = function( t ) { + + var t2 = t * t; + var t3 = t2 * t; + return this.c0 + this.c1 * t + this.c2 * t2 + this.c3 * t3; + + }; + + // Subclass Three.js curve + return Curve.create( + + function ( p /* array of Vector3 */ ) { + + this.points = p || []; + this.closed = false; + + }, + + function ( t ) { + + var points = this.points, + point, intPoint, weight, l; + + l = points.length; + + if ( l < 2 ) console.log( 'duh, you need at least 2 points' ); + + point = ( l - ( this.closed ? 0 : 1 ) ) * t; + intPoint = Math.floor( point ); + weight = point - intPoint; + + if ( this.closed ) { + + intPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length; + + } else if ( weight === 0 && intPoint === l - 1 ) { + + intPoint = l - 2; + weight = 1; + + } + + var p0, p1, p2, p3; // 4 points + + if ( this.closed || intPoint > 0 ) { + + p0 = points[ ( intPoint - 1 ) % l ]; + + } else { + + // extrapolate first point + tmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] ); + p0 = tmp; + + } + + p1 = points[ intPoint % l ]; + p2 = points[ ( intPoint + 1 ) % l ]; + + if ( this.closed || intPoint + 2 < l ) { + + p3 = points[ ( intPoint + 2 ) % l ]; + + } else { + + // extrapolate last point + tmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] ); + p3 = tmp; + + } + + if ( this.type === undefined || this.type === 'centripetal' || this.type === 'chordal' ) { + + // init Centripetal / Chordal Catmull-Rom + var pow = this.type === 'chordal' ? 0.5 : 0.25; + var dt0 = Math.pow( p0.distanceToSquared( p1 ), pow ); + var dt1 = Math.pow( p1.distanceToSquared( p2 ), pow ); + var dt2 = Math.pow( p2.distanceToSquared( p3 ), pow ); + + // safety check for repeated points + if ( dt1 < 1e-4 ) dt1 = 1.0; + if ( dt0 < 1e-4 ) dt0 = dt1; + if ( dt2 < 1e-4 ) dt2 = dt1; + + px.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 ); + py.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 ); + pz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 ); + + } else if ( this.type === 'catmullrom' ) { + + var tension = this.tension !== undefined ? this.tension : 0.5; + px.initCatmullRom( p0.x, p1.x, p2.x, p3.x, tension ); + py.initCatmullRom( p0.y, p1.y, p2.y, p3.y, tension ); + pz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, tension ); + + } + + var v = new Vector3( + px.calc( weight ), + py.calc( weight ), + pz.calc( weight ) + ); + + return v; + + } + + ); + + } )(); + + /************************************************************** + * Closed Spline 3D curve + **************************************************************/ + + + function ClosedSplineCurve3( points ) { + + console.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Please use THREE.CatmullRomCurve3.' ); + + CatmullRomCurve3.call( this, points ); + this.type = 'catmullrom'; + this.closed = true; + + } + + ClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype ); + + /************************************************************** + * Spline 3D curve + **************************************************************/ + + + var SplineCurve3 = Curve.create( + + function ( points /* array of Vector3 */ ) { + + console.warn( 'THREE.SplineCurve3 will be deprecated. Please use THREE.CatmullRomCurve3' ); + this.points = ( points === undefined ) ? [] : points; + + }, + + function ( t ) { + + var points = this.points; + var point = ( points.length - 1 ) * t; + + var intPoint = Math.floor( point ); + var weight = point - intPoint; + + var point0 = points[ intPoint == 0 ? intPoint : intPoint - 1 ]; + var point1 = points[ intPoint ]; + var point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ]; + var point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ]; + + var interpolate = CurveUtils.interpolate; + + return new Vector3( + interpolate( point0.x, point1.x, point2.x, point3.x, weight ), + interpolate( point0.y, point1.y, point2.y, point3.y, weight ), + interpolate( point0.z, point1.z, point2.z, point3.z, weight ) + ); + + } + + ); + + /************************************************************** + * Cubic Bezier 3D curve + **************************************************************/ + + var CubicBezierCurve3 = Curve.create( + + function ( v0, v1, v2, v3 ) { + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + this.v3 = v3; + + }, + + function ( t ) { + + var b3 = ShapeUtils.b3; + + return new Vector3( + b3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ), + b3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y ), + b3( t, this.v0.z, this.v1.z, this.v2.z, this.v3.z ) + ); + + } + + ); + + /************************************************************** + * Quadratic Bezier 3D curve + **************************************************************/ + + var QuadraticBezierCurve3 = Curve.create( + + function ( v0, v1, v2 ) { + + this.v0 = v0; + this.v1 = v1; + this.v2 = v2; + + }, + + function ( t ) { + + var b2 = ShapeUtils.b2; + + return new Vector3( + b2( t, this.v0.x, this.v1.x, this.v2.x ), + b2( t, this.v0.y, this.v1.y, this.v2.y ), + b2( t, this.v0.z, this.v1.z, this.v2.z ) + ); + + } + + ); + + /************************************************************** + * Line3D + **************************************************************/ + + var LineCurve3 = Curve.create( + + function ( v1, v2 ) { + + this.v1 = v1; + this.v2 = v2; + + }, + + function ( t ) { + + if ( t === 1 ) { + + return this.v2.clone(); + + } + + var vector = new Vector3(); + + vector.subVectors( this.v2, this.v1 ); // diff + vector.multiplyScalar( t ); + vector.add( this.v1 ); + + return vector; + + } + + ); + + /************************************************************** + * Arc curve + **************************************************************/ + + function ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) { + + EllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise ); + + } + + ArcCurve.prototype = Object.create( EllipseCurve.prototype ); + ArcCurve.prototype.constructor = ArcCurve; + + /** + * @author alteredq / http://alteredqualia.com/ + */ + + var SceneUtils = { + + createMultiMaterialObject: function ( geometry, materials ) { + + var group = new Group(); + + for ( var i = 0, l = materials.length; i < l; i ++ ) { + + group.add( new Mesh( geometry, materials[ i ] ) ); + + } + + return group; + + }, + + detach: function ( child, parent, scene ) { + + child.applyMatrix( parent.matrixWorld ); + parent.remove( child ); + scene.add( child ); + + }, + + attach: function ( child, scene, parent ) { + + var matrixWorldInverse = new Matrix4(); + matrixWorldInverse.getInverse( parent.matrixWorld ); + child.applyMatrix( matrixWorldInverse ); + + scene.remove( child ); + parent.add( child ); + + } + + }; + + /** + * @author mrdoob / http://mrdoob.com/ + */ + + function Face4 ( a, b, c, d, normal, color, materialIndex ) { + console.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' ); + return new Face3( a, b, c, normal, color, materialIndex ); + } + + var LineStrip = 0; + + var LinePieces = 1; + + function PointCloud ( geometry, material ) { + console.warn( 'THREE.PointCloud has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + } + + function ParticleSystem ( geometry, material ) { + console.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' ); + return new Points( geometry, material ); + } + + function PointCloudMaterial ( parameters ) { + console.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + } + + function ParticleBasicMaterial ( parameters ) { + console.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + } + + function ParticleSystemMaterial ( parameters ) { + console.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' ); + return new PointsMaterial( parameters ); + } + + function Vertex ( x, y, z ) { + console.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' ); + return new Vector3( x, y, z ); + } + + // + + function EdgesHelper( object, hex ) { + console.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' ); + return new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + } + + function WireframeHelper( object, hex ) { + console.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' ); + return new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) ); + } + + // + + Object.assign( Box2.prototype, { + center: function ( optionalTarget ) { + console.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + }, + empty: function () { + console.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + }, + isIntersectionBox: function ( box ) { + console.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + }, + size: function ( optionalTarget ) { + console.warn( 'THREE.Box2: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + } + } ); + + Object.assign( Box3.prototype, { + center: function ( optionalTarget ) { + console.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + }, + empty: function () { + console.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' ); + return this.isEmpty(); + }, + isIntersectionBox: function ( box ) { + console.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + }, + isIntersectionSphere: function ( sphere ) { + console.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + }, + size: function ( optionalTarget ) { + console.warn( 'THREE.Box3: .size() has been renamed to .getSize().' ); + return this.getSize( optionalTarget ); + } + } ); + + Object.assign( Line3.prototype, { + center: function ( optionalTarget ) { + console.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' ); + return this.getCenter( optionalTarget ); + } + } ); + + Object.assign( Matrix3.prototype, { + multiplyVector3: function ( vector ) { + console.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' ); + return vector.applyMatrix3( this ); + }, + multiplyVector3Array: function ( a ) { + console.warn( 'THREE.Matrix3: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' ); + return this.applyToVector3Array( a ); + } + } ); + + Object.assign( Matrix4.prototype, { + extractPosition: function ( m ) { + console.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' ); + return this.copyPosition( m ); + }, + setRotationFromQuaternion: function ( q ) { + console.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' ); + return this.makeRotationFromQuaternion( q ); + }, + multiplyVector3: function ( vector ) { + console.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) or vector.applyProjection( matrix ) instead.' ); + return vector.applyProjection( this ); + }, + multiplyVector4: function ( vector ) { + console.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + }, + multiplyVector3Array: function ( a ) { + console.warn( 'THREE.Matrix4: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' ); + return this.applyToVector3Array( a ); + }, + rotateAxis: function ( v ) { + console.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' ); + v.transformDirection( this ); + }, + crossVector: function ( vector ) { + console.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' ); + return vector.applyMatrix4( this ); + }, + translate: function ( v ) { + console.error( 'THREE.Matrix4: .translate() has been removed.' ); + }, + rotateX: function ( angle ) { + console.error( 'THREE.Matrix4: .rotateX() has been removed.' ); + }, + rotateY: function ( angle ) { + console.error( 'THREE.Matrix4: .rotateY() has been removed.' ); + }, + rotateZ: function ( angle ) { + console.error( 'THREE.Matrix4: .rotateZ() has been removed.' ); + }, + rotateByAxis: function ( axis, angle ) { + console.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' ); + } + } ); + + Object.assign( Plane.prototype, { + isIntersectionLine: function ( line ) { + console.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' ); + return this.intersectsLine( line ); + } + } ); + + Object.assign( Quaternion.prototype, { + multiplyVector3: function ( vector ) { + console.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' ); + return vector.applyQuaternion( this ); + } + } ); + + Object.assign( Ray.prototype, { + isIntersectionBox: function ( box ) { + console.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' ); + return this.intersectsBox( box ); + }, + isIntersectionPlane: function ( plane ) { + console.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' ); + return this.intersectsPlane( plane ); + }, + isIntersectionSphere: function ( sphere ) { + console.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' ); + return this.intersectsSphere( sphere ); + } + } ); + + Object.assign( Shape.prototype, { + extrude: function ( options ) { + console.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' ); + return new ExtrudeGeometry( this, options ); + }, + makeGeometry: function ( options ) { + console.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' ); + return new ShapeGeometry( this, options ); + } + } ); + + Object.assign( Vector3.prototype, { + setEulerFromRotationMatrix: function () { + console.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' ); + }, + setEulerFromQuaternion: function () { + console.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' ); + }, + getPositionFromMatrix: function ( m ) { + console.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' ); + return this.setFromMatrixPosition( m ); + }, + getScaleFromMatrix: function ( m ) { + console.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' ); + return this.setFromMatrixScale( m ); + }, + getColumnFromMatrix: function ( index, matrix ) { + console.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' ); + return this.setFromMatrixColumn( matrix, index ); + } + } ); + + // + + Object.assign( Object3D.prototype, { + getChildByName: function ( name ) { + console.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' ); + return this.getObjectByName( name ); + }, + renderDepth: function ( value ) { + console.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' ); + }, + translate: function ( distance, axis ) { + console.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' ); + return this.translateOnAxis( axis, distance ); + } + } ); + + Object.defineProperties( Object3D.prototype, { + eulerOrder: { + get: function () { + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + return this.rotation.order; + }, + set: function ( value ) { + console.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' ); + this.rotation.order = value; + } + }, + useQuaternion: { + get: function () { + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + }, + set: function ( value ) { + console.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' ); + } + } + } ); + + Object.defineProperties( LOD.prototype, { + objects: { + get: function () { + console.warn( 'THREE.LOD: .objects has been renamed to .levels.' ); + return this.levels; + } + } + } ); + + // + + PerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) { + + console.warn( "THREE.PerspectiveCamera.setLens is deprecated. " + + "Use .setFocalLength and .filmGauge for a photographic setup." ); + + if ( filmGauge !== undefined ) this.filmGauge = filmGauge; + this.setFocalLength( focalLength ); + + }; + + // + + Object.defineProperties( Light.prototype, { + onlyShadow: { + set: function ( value ) { + console.warn( 'THREE.Light: .onlyShadow has been removed.' ); + } + }, + shadowCameraFov: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' ); + this.shadow.camera.fov = value; + } + }, + shadowCameraLeft: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' ); + this.shadow.camera.left = value; + } + }, + shadowCameraRight: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' ); + this.shadow.camera.right = value; + } + }, + shadowCameraTop: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' ); + this.shadow.camera.top = value; + } + }, + shadowCameraBottom: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' ); + this.shadow.camera.bottom = value; + } + }, + shadowCameraNear: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' ); + this.shadow.camera.near = value; + } + }, + shadowCameraFar: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' ); + this.shadow.camera.far = value; + } + }, + shadowCameraVisible: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' ); + } + }, + shadowBias: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' ); + this.shadow.bias = value; + } + }, + shadowDarkness: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowDarkness has been removed.' ); + } + }, + shadowMapWidth: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' ); + this.shadow.mapSize.width = value; + } + }, + shadowMapHeight: { + set: function ( value ) { + console.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' ); + this.shadow.mapSize.height = value; + } + } + } ); + + // + + Object.defineProperties( BufferAttribute.prototype, { + length: { + get: function () { + console.warn( 'THREE.BufferAttribute: .length has been deprecated. Please use .count.' ); + return this.array.length; + } + } + } ); + + Object.assign( BufferGeometry.prototype, { + addIndex: function ( index ) { + console.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' ); + this.setIndex( index ); + }, + addDrawCall: function ( start, count, indexOffset ) { + if ( indexOffset !== undefined ) { + console.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' ); + } + console.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' ); + this.addGroup( start, count ); + }, + clearDrawCalls: function () { + console.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' ); + this.clearGroups(); + }, + computeTangents: function () { + console.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' ); + }, + computeOffsets: function () { + console.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' ); + } + } ); + + Object.defineProperties( BufferGeometry.prototype, { + drawcalls: { + get: function () { + console.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' ); + return this.groups; + } + }, + offsets: { + get: function () { + console.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' ); + return this.groups; + } + } + } ); + + // + + Object.defineProperties( Material.prototype, { + wrapAround: { + get: function () { + console.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' ); + }, + set: function ( value ) { + console.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' ); + } + }, + wrapRGB: { + get: function () { + console.warn( 'THREE.' + this.type + ': .wrapRGB has been removed.' ); + return new Color(); + } + } + } ); + + Object.defineProperties( MeshPhongMaterial.prototype, { + metal: { + get: function () { + console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' ); + return false; + }, + set: function ( value ) { + console.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' ); + } + } + } ); + + Object.defineProperties( ShaderMaterial.prototype, { + derivatives: { + get: function () { + console.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + return this.extensions.derivatives; + }, + set: function ( value ) { + console.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' ); + this.extensions.derivatives = value; + } + } + } ); + + // + + EventDispatcher.prototype = Object.assign( Object.create( { + + // Note: Extra base ensures these properties are not 'assign'ed. + + constructor: EventDispatcher, + + apply: function ( target ) { + + console.warn( "THREE.EventDispatcher: .apply is deprecated, " + + "just inherit or Object.assign the prototype to mix-in." ); + + Object.assign( target, this ); + + } + + } ), EventDispatcher.prototype ); + + // + + Object.defineProperties( Uniform.prototype, { + dynamic: { + set: function ( value ) { + console.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' ); + } + }, + onUpdate: { + value: function () { + console.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' ); + return this; + } + } + } ); + + // + + Object.assign( WebGLRenderer.prototype, { + supportsFloatTextures: function () { + console.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).' ); + return this.extensions.get( 'OES_texture_float' ); + }, + supportsHalfFloatTextures: function () { + console.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).' ); + return this.extensions.get( 'OES_texture_half_float' ); + }, + supportsStandardDerivatives: function () { + console.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).' ); + return this.extensions.get( 'OES_standard_derivatives' ); + }, + supportsCompressedTextureS3TC: function () { + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_s3tc' ); + }, + supportsCompressedTexturePVRTC: function () { + console.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).' ); + return this.extensions.get( 'WEBGL_compressed_texture_pvrtc' ); + }, + supportsBlendMinMax: function () { + console.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).' ); + return this.extensions.get( 'EXT_blend_minmax' ); + }, + supportsVertexTextures: function () { + return this.capabilities.vertexTextures; + }, + supportsInstancedArrays: function () { + console.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).' ); + return this.extensions.get( 'ANGLE_instanced_arrays' ); + }, + enableScissorTest: function ( boolean ) { + console.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' ); + this.setScissorTest( boolean ); + }, + initMaterial: function () { + console.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' ); + }, + addPrePlugin: function () { + console.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' ); + }, + addPostPlugin: function () { + console.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' ); + }, + updateShadowMap: function () { + console.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' ); + } + } ); + + Object.defineProperties( WebGLRenderer.prototype, { + shadowMapEnabled: { + get: function () { + return this.shadowMap.enabled; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' ); + this.shadowMap.enabled = value; + } + }, + shadowMapType: { + get: function () { + return this.shadowMap.type; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' ); + this.shadowMap.type = value; + } + }, + shadowMapCullFace: { + get: function () { + return this.shadowMap.cullFace; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.' ); + this.shadowMap.cullFace = value; + } + } + } ); + + Object.defineProperties( WebGLShadowMap.prototype, { + cullFace: { + get: function () { + return this.renderReverseSided ? CullFaceFront : CullFaceBack; + }, + set: function ( cullFace ) { + var value = ( cullFace !== CullFaceBack ); + console.warn( "WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to " + value + "." ); + this.renderReverseSided = value; + } + } + } ); + + // + + Object.defineProperties( WebGLRenderTarget.prototype, { + wrapS: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + return this.texture.wrapS; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' ); + this.texture.wrapS = value; + } + }, + wrapT: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + return this.texture.wrapT; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' ); + this.texture.wrapT = value; + } + }, + magFilter: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + return this.texture.magFilter; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' ); + this.texture.magFilter = value; + } + }, + minFilter: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + return this.texture.minFilter; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' ); + this.texture.minFilter = value; + } + }, + anisotropy: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + return this.texture.anisotropy; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' ); + this.texture.anisotropy = value; + } + }, + offset: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + return this.texture.offset; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' ); + this.texture.offset = value; + } + }, + repeat: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + return this.texture.repeat; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' ); + this.texture.repeat = value; + } + }, + format: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + return this.texture.format; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' ); + this.texture.format = value; + } + }, + type: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + return this.texture.type; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' ); + this.texture.type = value; + } + }, + generateMipmaps: { + get: function () { + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + return this.texture.generateMipmaps; + }, + set: function ( value ) { + console.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' ); + this.texture.generateMipmaps = value; + } + } + } ); + + // + + Object.assign( Audio.prototype, { + load: function ( file ) { + console.warn( 'THREE.Audio: .load has been deprecated. Please use THREE.AudioLoader.' ); + var scope = this; + var audioLoader = new AudioLoader(); + audioLoader.load( file, function ( buffer ) { + scope.setBuffer( buffer ); + } ); + return this; + } + } ); + + Object.assign( AudioAnalyser.prototype, { + getData: function ( file ) { + console.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' ); + return this.getFrequencyData(); + } + } ); + + // + + var GeometryUtils = { + + merge: function ( geometry1, geometry2, materialIndexOffset ) { + + console.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' ); + + var matrix; + + if ( geometry2.isMesh ) { + + geometry2.matrixAutoUpdate && geometry2.updateMatrix(); + + matrix = geometry2.matrix; + geometry2 = geometry2.geometry; + + } + + geometry1.merge( geometry2, matrix, materialIndexOffset ); + + }, + + center: function ( geometry ) { + + console.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' ); + return geometry.center(); + + } + + }; + + var ImageUtils = { + + crossOrigin: undefined, + + loadTexture: function ( url, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' ); + + var loader = new TextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + var texture = loader.load( url, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + + }, + + loadTextureCube: function ( urls, mapping, onLoad, onError ) { + + console.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' ); + + var loader = new CubeTextureLoader(); + loader.setCrossOrigin( this.crossOrigin ); + + var texture = loader.load( urls, onLoad, undefined, onError ); + + if ( mapping ) texture.mapping = mapping; + + return texture; + + }, + + loadCompressedTexture: function () { + + console.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' ); + + }, + + loadCompressedTextureCube: function () { + + console.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' ); + + } + + }; + + // + + function Projector () { + + console.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' ); + + this.projectVector = function ( vector, camera ) { + + console.warn( 'THREE.Projector: .projectVector() is now vector.project().' ); + vector.project( camera ); + + }; + + this.unprojectVector = function ( vector, camera ) { + + console.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' ); + vector.unproject( camera ); + + }; + + this.pickingRay = function ( vector, camera ) { + + console.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' ); + + }; + + } + + // + + function CanvasRenderer () { + + console.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' ); + + this.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ); + this.clear = function () {}; + this.render = function () {}; + this.setClearColor = function () {}; + this.setSize = function () {}; + + } + + exports.WebGLRenderTargetCube = WebGLRenderTargetCube; + exports.WebGLRenderTarget = WebGLRenderTarget; + exports.WebGLRenderer = WebGLRenderer; + exports.ShaderLib = ShaderLib; + exports.UniformsLib = UniformsLib; + exports.UniformsUtils = UniformsUtils; + exports.ShaderChunk = ShaderChunk; + exports.FogExp2 = FogExp2; + exports.Fog = Fog; + exports.Scene = Scene; + exports.LensFlare = LensFlare; + exports.Sprite = Sprite; + exports.LOD = LOD; + exports.SkinnedMesh = SkinnedMesh; + exports.Skeleton = Skeleton; + exports.Bone = Bone; + exports.Mesh = Mesh; + exports.LineSegments = LineSegments; + exports.Line = Line; + exports.Points = Points; + exports.Group = Group; + exports.VideoTexture = VideoTexture; + exports.DataTexture = DataTexture; + exports.CompressedTexture = CompressedTexture; + exports.CubeTexture = CubeTexture; + exports.CanvasTexture = CanvasTexture; + exports.DepthTexture = DepthTexture; + exports.TextureIdCount = TextureIdCount; + exports.Texture = Texture; + exports.MaterialIdCount = MaterialIdCount; + exports.CompressedTextureLoader = CompressedTextureLoader; + exports.BinaryTextureLoader = BinaryTextureLoader; + exports.DataTextureLoader = DataTextureLoader; + exports.CubeTextureLoader = CubeTextureLoader; + exports.TextureLoader = TextureLoader; + exports.ObjectLoader = ObjectLoader; + exports.MaterialLoader = MaterialLoader; + exports.BufferGeometryLoader = BufferGeometryLoader; + exports.DefaultLoadingManager = DefaultLoadingManager; + exports.LoadingManager = LoadingManager; + exports.JSONLoader = JSONLoader; + exports.ImageLoader = ImageLoader; + exports.FontLoader = FontLoader; + exports.XHRLoader = XHRLoader; + exports.Loader = Loader; + exports.Cache = Cache; + exports.AudioLoader = AudioLoader; + exports.SpotLightShadow = SpotLightShadow; + exports.SpotLight = SpotLight; + exports.PointLight = PointLight; + exports.HemisphereLight = HemisphereLight; + exports.DirectionalLightShadow = DirectionalLightShadow; + exports.DirectionalLight = DirectionalLight; + exports.AmbientLight = AmbientLight; + exports.LightShadow = LightShadow; + exports.Light = Light; + exports.StereoCamera = StereoCamera; + exports.PerspectiveCamera = PerspectiveCamera; + exports.OrthographicCamera = OrthographicCamera; + exports.CubeCamera = CubeCamera; + exports.Camera = Camera; + exports.AudioListener = AudioListener; + exports.PositionalAudio = PositionalAudio; + exports.getAudioContext = getAudioContext; + exports.AudioAnalyser = AudioAnalyser; + exports.Audio = Audio; + exports.VectorKeyframeTrack = VectorKeyframeTrack; + exports.StringKeyframeTrack = StringKeyframeTrack; + exports.QuaternionKeyframeTrack = QuaternionKeyframeTrack; + exports.NumberKeyframeTrack = NumberKeyframeTrack; + exports.ColorKeyframeTrack = ColorKeyframeTrack; + exports.BooleanKeyframeTrack = BooleanKeyframeTrack; + exports.PropertyMixer = PropertyMixer; + exports.PropertyBinding = PropertyBinding; + exports.KeyframeTrack = KeyframeTrack; + exports.AnimationUtils = AnimationUtils; + exports.AnimationObjectGroup = AnimationObjectGroup; + exports.AnimationMixer = AnimationMixer; + exports.AnimationClip = AnimationClip; + exports.Uniform = Uniform; + exports.InstancedBufferGeometry = InstancedBufferGeometry; + exports.BufferGeometry = BufferGeometry; + exports.GeometryIdCount = GeometryIdCount; + exports.Geometry = Geometry; + exports.InterleavedBufferAttribute = InterleavedBufferAttribute; + exports.InstancedInterleavedBuffer = InstancedInterleavedBuffer; + exports.InterleavedBuffer = InterleavedBuffer; + exports.InstancedBufferAttribute = InstancedBufferAttribute; + exports.DynamicBufferAttribute = DynamicBufferAttribute; + exports.Float64Attribute = Float64Attribute; + exports.Float32Attribute = Float32Attribute; + exports.Uint32Attribute = Uint32Attribute; + exports.Int32Attribute = Int32Attribute; + exports.Uint16Attribute = Uint16Attribute; + exports.Int16Attribute = Int16Attribute; + exports.Uint8ClampedAttribute = Uint8ClampedAttribute; + exports.Uint8Attribute = Uint8Attribute; + exports.Int8Attribute = Int8Attribute; + exports.BufferAttribute = BufferAttribute; + exports.Face3 = Face3; + exports.Object3DIdCount = Object3DIdCount; + exports.Object3D = Object3D; + exports.Raycaster = Raycaster; + exports.Layers = Layers; + exports.EventDispatcher = EventDispatcher; + exports.Clock = Clock; + exports.QuaternionLinearInterpolant = QuaternionLinearInterpolant; + exports.LinearInterpolant = LinearInterpolant; + exports.DiscreteInterpolant = DiscreteInterpolant; + exports.CubicInterpolant = CubicInterpolant; + exports.Interpolant = Interpolant; + exports.Triangle = Triangle; + exports.Spline = Spline; + exports.Math = _Math; + exports.Spherical = Spherical; + exports.Plane = Plane; + exports.Frustum = Frustum; + exports.Sphere = Sphere; + exports.Ray = Ray; + exports.Matrix4 = Matrix4; + exports.Matrix3 = Matrix3; + exports.Box3 = Box3; + exports.Box2 = Box2; + exports.Line3 = Line3; + exports.Euler = Euler; + exports.Vector4 = Vector4; + exports.Vector3 = Vector3; + exports.Vector2 = Vector2; + exports.Quaternion = Quaternion; + exports.ColorKeywords = ColorKeywords; + exports.Color = Color; + exports.MorphBlendMesh = MorphBlendMesh; + exports.ImmediateRenderObject = ImmediateRenderObject; + exports.VertexNormalsHelper = VertexNormalsHelper; + exports.SpotLightHelper = SpotLightHelper; + exports.SkeletonHelper = SkeletonHelper; + exports.PointLightHelper = PointLightHelper; + exports.HemisphereLightHelper = HemisphereLightHelper; + exports.GridHelper = GridHelper; + exports.FaceNormalsHelper = FaceNormalsHelper; + exports.DirectionalLightHelper = DirectionalLightHelper; + exports.CameraHelper = CameraHelper; + exports.BoundingBoxHelper = BoundingBoxHelper; + exports.BoxHelper = BoxHelper; + exports.ArrowHelper = ArrowHelper; + exports.AxisHelper = AxisHelper; + exports.ClosedSplineCurve3 = ClosedSplineCurve3; + exports.CatmullRomCurve3 = CatmullRomCurve3; + exports.SplineCurve3 = SplineCurve3; + exports.CubicBezierCurve3 = CubicBezierCurve3; + exports.QuadraticBezierCurve3 = QuadraticBezierCurve3; + exports.LineCurve3 = LineCurve3; + exports.ArcCurve = ArcCurve; + exports.EllipseCurve = EllipseCurve; + exports.SplineCurve = SplineCurve; + exports.CubicBezierCurve = CubicBezierCurve; + exports.QuadraticBezierCurve = QuadraticBezierCurve; + exports.LineCurve = LineCurve; + exports.Shape = Shape; + exports.ShapePath = ShapePath; + exports.Path = Path; + exports.Font = Font; + exports.CurvePath = CurvePath; + exports.Curve = Curve; + exports.ShapeUtils = ShapeUtils; + exports.SceneUtils = SceneUtils; + exports.CurveUtils = CurveUtils; + exports.WireframeGeometry = WireframeGeometry; + exports.ParametricGeometry = ParametricGeometry; + exports.ParametricBufferGeometry = ParametricBufferGeometry; + exports.TetrahedronGeometry = TetrahedronGeometry; + exports.TetrahedronBufferGeometry = TetrahedronBufferGeometry; + exports.OctahedronGeometry = OctahedronGeometry; + exports.OctahedronBufferGeometry = OctahedronBufferGeometry; + exports.IcosahedronGeometry = IcosahedronGeometry; + exports.IcosahedronBufferGeometry = IcosahedronBufferGeometry; + exports.DodecahedronGeometry = DodecahedronGeometry; + exports.DodecahedronBufferGeometry = DodecahedronBufferGeometry; + exports.PolyhedronGeometry = PolyhedronGeometry; + exports.PolyhedronBufferGeometry = PolyhedronBufferGeometry; + exports.TubeGeometry = TubeGeometry; + exports.TubeBufferGeometry = TubeBufferGeometry; + exports.TorusKnotGeometry = TorusKnotGeometry; + exports.TorusKnotBufferGeometry = TorusKnotBufferGeometry; + exports.TorusGeometry = TorusGeometry; + exports.TorusBufferGeometry = TorusBufferGeometry; + exports.TextGeometry = TextGeometry; + exports.SphereBufferGeometry = SphereBufferGeometry; + exports.SphereGeometry = SphereGeometry; + exports.RingGeometry = RingGeometry; + exports.RingBufferGeometry = RingBufferGeometry; + exports.PlaneBufferGeometry = PlaneBufferGeometry; + exports.PlaneGeometry = PlaneGeometry; + exports.LatheGeometry = LatheGeometry; + exports.LatheBufferGeometry = LatheBufferGeometry; + exports.ShapeGeometry = ShapeGeometry; + exports.ExtrudeGeometry = ExtrudeGeometry; + exports.EdgesGeometry = EdgesGeometry; + exports.ConeGeometry = ConeGeometry; + exports.ConeBufferGeometry = ConeBufferGeometry; + exports.CylinderGeometry = CylinderGeometry; + exports.CylinderBufferGeometry = CylinderBufferGeometry; + exports.CircleBufferGeometry = CircleBufferGeometry; + exports.CircleGeometry = CircleGeometry; + exports.BoxBufferGeometry = BoxBufferGeometry; + exports.BoxGeometry = BoxGeometry; + exports.ShadowMaterial = ShadowMaterial; + exports.SpriteMaterial = SpriteMaterial; + exports.RawShaderMaterial = RawShaderMaterial; + exports.ShaderMaterial = ShaderMaterial; + exports.PointsMaterial = PointsMaterial; + exports.MultiMaterial = MultiMaterial; + exports.MeshPhysicalMaterial = MeshPhysicalMaterial; + exports.MeshStandardMaterial = MeshStandardMaterial; + exports.MeshPhongMaterial = MeshPhongMaterial; + exports.MeshNormalMaterial = MeshNormalMaterial; + exports.MeshLambertMaterial = MeshLambertMaterial; + exports.MeshDepthMaterial = MeshDepthMaterial; + exports.MeshBasicMaterial = MeshBasicMaterial; + exports.LineDashedMaterial = LineDashedMaterial; + exports.LineBasicMaterial = LineBasicMaterial; + exports.Material = Material; + exports.REVISION = REVISION; + exports.MOUSE = MOUSE; + exports.CullFaceNone = CullFaceNone; + exports.CullFaceBack = CullFaceBack; + exports.CullFaceFront = CullFaceFront; + exports.CullFaceFrontBack = CullFaceFrontBack; + exports.FrontFaceDirectionCW = FrontFaceDirectionCW; + exports.FrontFaceDirectionCCW = FrontFaceDirectionCCW; + exports.BasicShadowMap = BasicShadowMap; + exports.PCFShadowMap = PCFShadowMap; + exports.PCFSoftShadowMap = PCFSoftShadowMap; + exports.FrontSide = FrontSide; + exports.BackSide = BackSide; + exports.DoubleSide = DoubleSide; + exports.FlatShading = FlatShading; + exports.SmoothShading = SmoothShading; + exports.NoColors = NoColors; + exports.FaceColors = FaceColors; + exports.VertexColors = VertexColors; + exports.NoBlending = NoBlending; + exports.NormalBlending = NormalBlending; + exports.AdditiveBlending = AdditiveBlending; + exports.SubtractiveBlending = SubtractiveBlending; + exports.MultiplyBlending = MultiplyBlending; + exports.CustomBlending = CustomBlending; + exports.BlendingMode = BlendingMode; + exports.AddEquation = AddEquation; + exports.SubtractEquation = SubtractEquation; + exports.ReverseSubtractEquation = ReverseSubtractEquation; + exports.MinEquation = MinEquation; + exports.MaxEquation = MaxEquation; + exports.ZeroFactor = ZeroFactor; + exports.OneFactor = OneFactor; + exports.SrcColorFactor = SrcColorFactor; + exports.OneMinusSrcColorFactor = OneMinusSrcColorFactor; + exports.SrcAlphaFactor = SrcAlphaFactor; + exports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor; + exports.DstAlphaFactor = DstAlphaFactor; + exports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor; + exports.DstColorFactor = DstColorFactor; + exports.OneMinusDstColorFactor = OneMinusDstColorFactor; + exports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor; + exports.NeverDepth = NeverDepth; + exports.AlwaysDepth = AlwaysDepth; + exports.LessDepth = LessDepth; + exports.LessEqualDepth = LessEqualDepth; + exports.EqualDepth = EqualDepth; + exports.GreaterEqualDepth = GreaterEqualDepth; + exports.GreaterDepth = GreaterDepth; + exports.NotEqualDepth = NotEqualDepth; + exports.MultiplyOperation = MultiplyOperation; + exports.MixOperation = MixOperation; + exports.AddOperation = AddOperation; + exports.NoToneMapping = NoToneMapping; + exports.LinearToneMapping = LinearToneMapping; + exports.ReinhardToneMapping = ReinhardToneMapping; + exports.Uncharted2ToneMapping = Uncharted2ToneMapping; + exports.CineonToneMapping = CineonToneMapping; + exports.UVMapping = UVMapping; + exports.CubeReflectionMapping = CubeReflectionMapping; + exports.CubeRefractionMapping = CubeRefractionMapping; + exports.EquirectangularReflectionMapping = EquirectangularReflectionMapping; + exports.EquirectangularRefractionMapping = EquirectangularRefractionMapping; + exports.SphericalReflectionMapping = SphericalReflectionMapping; + exports.CubeUVReflectionMapping = CubeUVReflectionMapping; + exports.CubeUVRefractionMapping = CubeUVRefractionMapping; + exports.TextureMapping = TextureMapping; + exports.RepeatWrapping = RepeatWrapping; + exports.ClampToEdgeWrapping = ClampToEdgeWrapping; + exports.MirroredRepeatWrapping = MirroredRepeatWrapping; + exports.TextureWrapping = TextureWrapping; + exports.NearestFilter = NearestFilter; + exports.NearestMipMapNearestFilter = NearestMipMapNearestFilter; + exports.NearestMipMapLinearFilter = NearestMipMapLinearFilter; + exports.LinearFilter = LinearFilter; + exports.LinearMipMapNearestFilter = LinearMipMapNearestFilter; + exports.LinearMipMapLinearFilter = LinearMipMapLinearFilter; + exports.TextureFilter = TextureFilter; + exports.UnsignedByteType = UnsignedByteType; + exports.ByteType = ByteType; + exports.ShortType = ShortType; + exports.UnsignedShortType = UnsignedShortType; + exports.IntType = IntType; + exports.UnsignedIntType = UnsignedIntType; + exports.FloatType = FloatType; + exports.HalfFloatType = HalfFloatType; + exports.UnsignedShort4444Type = UnsignedShort4444Type; + exports.UnsignedShort5551Type = UnsignedShort5551Type; + exports.UnsignedShort565Type = UnsignedShort565Type; + exports.UnsignedInt248Type = UnsignedInt248Type; + exports.AlphaFormat = AlphaFormat; + exports.RGBFormat = RGBFormat; + exports.RGBAFormat = RGBAFormat; + exports.LuminanceFormat = LuminanceFormat; + exports.LuminanceAlphaFormat = LuminanceAlphaFormat; + exports.RGBEFormat = RGBEFormat; + exports.DepthFormat = DepthFormat; + exports.DepthStencilFormat = DepthStencilFormat; + exports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format; + exports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format; + exports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format; + exports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format; + exports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format; + exports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format; + exports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format; + exports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format; + exports.RGB_ETC1_Format = RGB_ETC1_Format; + exports.LoopOnce = LoopOnce; + exports.LoopRepeat = LoopRepeat; + exports.LoopPingPong = LoopPingPong; + exports.InterpolateDiscrete = InterpolateDiscrete; + exports.InterpolateLinear = InterpolateLinear; + exports.InterpolateSmooth = InterpolateSmooth; + exports.ZeroCurvatureEnding = ZeroCurvatureEnding; + exports.ZeroSlopeEnding = ZeroSlopeEnding; + exports.WrapAroundEnding = WrapAroundEnding; + exports.TrianglesDrawMode = TrianglesDrawMode; + exports.TriangleStripDrawMode = TriangleStripDrawMode; + exports.TriangleFanDrawMode = TriangleFanDrawMode; + exports.LinearEncoding = LinearEncoding; + exports.sRGBEncoding = sRGBEncoding; + exports.GammaEncoding = GammaEncoding; + exports.RGBEEncoding = RGBEEncoding; + exports.LogLuvEncoding = LogLuvEncoding; + exports.RGBM7Encoding = RGBM7Encoding; + exports.RGBM16Encoding = RGBM16Encoding; + exports.RGBDEncoding = RGBDEncoding; + exports.BasicDepthPacking = BasicDepthPacking; + exports.RGBADepthPacking = RGBADepthPacking; + exports.CubeGeometry = BoxGeometry; + exports.Face4 = Face4; + exports.LineStrip = LineStrip; + exports.LinePieces = LinePieces; + exports.MeshFaceMaterial = MultiMaterial; + exports.PointCloud = PointCloud; + exports.Particle = Sprite; + exports.ParticleSystem = ParticleSystem; + exports.PointCloudMaterial = PointCloudMaterial; + exports.ParticleBasicMaterial = ParticleBasicMaterial; + exports.ParticleSystemMaterial = ParticleSystemMaterial; + exports.Vertex = Vertex; + exports.EdgesHelper = EdgesHelper; + exports.WireframeHelper = WireframeHelper; + exports.GeometryUtils = GeometryUtils; + exports.ImageUtils = ImageUtils; + exports.Projector = Projector; + exports.CanvasRenderer = CanvasRenderer; + + Object.defineProperty(exports, '__esModule', { value: true }); + + Object.defineProperty( exports, 'AudioContext', { + get: function () { + return exports.getAudioContext(); + } + }); + + }))); + + +/***/ }, +/* 7 */ +/***/ function(module, exports) { + + module.exports = function( THREE ) { + /** + * @author qiao / https://github.com/qiao + * @author mrdoob / http://mrdoob.com + * @author alteredq / http://alteredqualia.com/ + * @author WestLangley / http://github.com/WestLangley + * @author erich666 / http://erichaines.com + */ + + // This set of controls performs orbiting, dollying (zooming), and panning. + // Unlike TrackballControls, it maintains the "up" direction object.up (+Y by default). + // + // Orbit - left mouse / touch: one finger move + // Zoom - middle mouse, or mousewheel / touch: two finger spread or squish + // Pan - right mouse, or arrow keys / touch: three finter swipe + + function OrbitControls( object, domElement ) { + + this.object = object; + + this.domElement = ( domElement !== undefined ) ? domElement : document; + + // Set to false to disable this control + this.enabled = true; + + // "target" sets the location of focus, where the object orbits around + this.target = new THREE.Vector3(); + + // How far you can dolly in and out ( PerspectiveCamera only ) + this.minDistance = 0; + this.maxDistance = Infinity; + + // How far you can zoom in and out ( OrthographicCamera only ) + this.minZoom = 0; + this.maxZoom = Infinity; + + // How far you can orbit vertically, upper and lower limits. + // Range is 0 to Math.PI radians. + this.minPolarAngle = 0; // radians + this.maxPolarAngle = Math.PI; // radians + + // How far you can orbit horizontally, upper and lower limits. + // If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ]. + this.minAzimuthAngle = - Infinity; // radians + this.maxAzimuthAngle = Infinity; // radians + + // Set to true to enable damping (inertia) + // If damping is enabled, you must call controls.update() in your animation loop + this.enableDamping = false; + this.dampingFactor = 0.25; + + // This option actually enables dollying in and out; left as "zoom" for backwards compatibility. + // Set to false to disable zooming + this.enableZoom = true; + this.zoomSpeed = 1.0; + + // Set to false to disable rotating + this.enableRotate = true; + this.rotateSpeed = 1.0; + + // Set to false to disable panning + this.enablePan = true; + this.keyPanSpeed = 7.0; // pixels moved per arrow key push + + // Set to true to automatically rotate around the target + // If auto-rotate is enabled, you must call controls.update() in your animation loop + this.autoRotate = false; + this.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60 + + // Set to false to disable use of the keys + this.enableKeys = true; + + // The four arrow keys + this.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 }; + + // Mouse buttons + this.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT }; + + // for reset + this.target0 = this.target.clone(); + this.position0 = this.object.position.clone(); + this.zoom0 = this.object.zoom; + + // + // public methods + // + + this.getPolarAngle = function () { + + return spherical.phi; + + }; + + this.getAzimuthalAngle = function () { + + return spherical.theta; + + }; + + this.reset = function () { + + scope.target.copy( scope.target0 ); + scope.object.position.copy( scope.position0 ); + scope.object.zoom = scope.zoom0; + + scope.object.updateProjectionMatrix(); + scope.dispatchEvent( changeEvent ); + + scope.update(); + + state = STATE.NONE; + + }; + + // this method is exposed, but perhaps it would be better if we can make it private... + this.update = function() { + + var offset = new THREE.Vector3(); + + // so camera.up is the orbit axis + var quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) ); + var quatInverse = quat.clone().inverse(); + + var lastPosition = new THREE.Vector3(); + var lastQuaternion = new THREE.Quaternion(); + + return function update () { + + var position = scope.object.position; + + offset.copy( position ).sub( scope.target ); + + // rotate offset to "y-axis-is-up" space + offset.applyQuaternion( quat ); + + // angle from z-axis around y-axis + spherical.setFromVector3( offset ); + + if ( scope.autoRotate && state === STATE.NONE ) { + + rotateLeft( getAutoRotationAngle() ); + + } + + spherical.theta += sphericalDelta.theta; + spherical.phi += sphericalDelta.phi; + + // restrict theta to be between desired limits + spherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, spherical.theta ) ); + + // restrict phi to be between desired limits + spherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) ); + + spherical.makeSafe(); + + + spherical.radius *= scale; + + // restrict radius to be between desired limits + spherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) ); + + // move target to panned location + scope.target.add( panOffset ); + + offset.setFromSpherical( spherical ); + + // rotate offset back to "camera-up-vector-is-up" space + offset.applyQuaternion( quatInverse ); + + position.copy( scope.target ).add( offset ); + + scope.object.lookAt( scope.target ); + + if ( scope.enableDamping === true ) { + + sphericalDelta.theta *= ( 1 - scope.dampingFactor ); + sphericalDelta.phi *= ( 1 - scope.dampingFactor ); + + } else { + + sphericalDelta.set( 0, 0, 0 ); + + } + + scale = 1; + panOffset.set( 0, 0, 0 ); + + // update condition is: + // min(camera displacement, camera rotation in radians)^2 > EPS + // using small-angle approximation cos(x/2) = 1 - x^2 / 8 + + if ( zoomChanged || + lastPosition.distanceToSquared( scope.object.position ) > EPS || + 8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) { + + scope.dispatchEvent( changeEvent ); + + lastPosition.copy( scope.object.position ); + lastQuaternion.copy( scope.object.quaternion ); + zoomChanged = false; + + return true; + + } + + return false; + + }; + + }(); + + this.dispose = function() { + + scope.domElement.removeEventListener( 'contextmenu', onContextMenu, false ); + scope.domElement.removeEventListener( 'mousedown', onMouseDown, false ); + scope.domElement.removeEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.removeEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.removeEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.removeEventListener( 'touchmove', onTouchMove, false ); + + document.removeEventListener( 'mousemove', onMouseMove, false ); + document.removeEventListener( 'mouseup', onMouseUp, false ); + + window.removeEventListener( 'keydown', onKeyDown, false ); + + //scope.dispatchEvent( { type: 'dispose' } ); // should this be added here? + + }; + + // + // internals + // + + var scope = this; + + var changeEvent = { type: 'change' }; + var startEvent = { type: 'start' }; + var endEvent = { type: 'end' }; + + var STATE = { NONE : - 1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 }; + + var state = STATE.NONE; + + var EPS = 0.000001; + + // current position in spherical coordinates + var spherical = new THREE.Spherical(); + var sphericalDelta = new THREE.Spherical(); + + var scale = 1; + var panOffset = new THREE.Vector3(); + var zoomChanged = false; + + var rotateStart = new THREE.Vector2(); + var rotateEnd = new THREE.Vector2(); + var rotateDelta = new THREE.Vector2(); + + var panStart = new THREE.Vector2(); + var panEnd = new THREE.Vector2(); + var panDelta = new THREE.Vector2(); + + var dollyStart = new THREE.Vector2(); + var dollyEnd = new THREE.Vector2(); + var dollyDelta = new THREE.Vector2(); + + function getAutoRotationAngle() { + + return 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed; + + } + + function getZoomScale() { + + return Math.pow( 0.95, scope.zoomSpeed ); + + } + + function rotateLeft( angle ) { + + sphericalDelta.theta -= angle; + + } + + function rotateUp( angle ) { + + sphericalDelta.phi -= angle; + + } + + var panLeft = function() { + + var v = new THREE.Vector3(); + + return function panLeft( distance, objectMatrix ) { + + v.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix + v.multiplyScalar( - distance ); + + panOffset.add( v ); + + }; + + }(); + + var panUp = function() { + + var v = new THREE.Vector3(); + + return function panUp( distance, objectMatrix ) { + + v.setFromMatrixColumn( objectMatrix, 1 ); // get Y column of objectMatrix + v.multiplyScalar( distance ); + + panOffset.add( v ); + + }; + + }(); + + // deltaX and deltaY are in pixels; right and down are positive + var pan = function() { + + var offset = new THREE.Vector3(); + + return function pan ( deltaX, deltaY ) { + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + if ( scope.object instanceof THREE.PerspectiveCamera ) { + + // perspective + var position = scope.object.position; + offset.copy( position ).sub( scope.target ); + var targetDistance = offset.length(); + + // half of the fov is center to top of screen + targetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 ); + + // we actually don't use screenWidth, since perspective camera is fixed to screen height + panLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix ); + panUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix ); + + } else if ( scope.object instanceof THREE.OrthographicCamera ) { + + // orthographic + panLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix ); + panUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix ); + + } else { + + // camera neither orthographic nor perspective + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' ); + scope.enablePan = false; + + } + + }; + + }(); + + function dollyIn( dollyScale ) { + + if ( scope.object instanceof THREE.PerspectiveCamera ) { + + scale /= dollyScale; + + } else if ( scope.object instanceof THREE.OrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + function dollyOut( dollyScale ) { + + if ( scope.object instanceof THREE.PerspectiveCamera ) { + + scale *= dollyScale; + + } else if ( scope.object instanceof THREE.OrthographicCamera ) { + + scope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) ); + scope.object.updateProjectionMatrix(); + zoomChanged = true; + + } else { + + console.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' ); + scope.enableZoom = false; + + } + + } + + // + // event callbacks - update the object state + // + + function handleMouseDownRotate( event ) { + + //console.log( 'handleMouseDownRotate' ); + + rotateStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownDolly( event ) { + + //console.log( 'handleMouseDownDolly' ); + + dollyStart.set( event.clientX, event.clientY ); + + } + + function handleMouseDownPan( event ) { + + //console.log( 'handleMouseDownPan' ); + + panStart.set( event.clientX, event.clientY ); + + } + + function handleMouseMoveRotate( event ) { + + //console.log( 'handleMouseMoveRotate' ); + + rotateEnd.set( event.clientX, event.clientY ); + rotateDelta.subVectors( rotateEnd, rotateStart ); + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + // rotating across whole screen goes 360 degrees around + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed ); + + // rotating up and down along whole screen attempts to go 360, but limited to 180 + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + + } + + function handleMouseMoveDolly( event ) { + + //console.log( 'handleMouseMoveDolly' ); + + dollyEnd.set( event.clientX, event.clientY ); + + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + dollyIn( getZoomScale() ); + + } else if ( dollyDelta.y < 0 ) { + + dollyOut( getZoomScale() ); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + + } + + function handleMouseMovePan( event ) { + + //console.log( 'handleMouseMovePan' ); + + panEnd.set( event.clientX, event.clientY ); + + panDelta.subVectors( panEnd, panStart ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + + } + + function handleMouseUp( event ) { + + //console.log( 'handleMouseUp' ); + + } + + function handleMouseWheel( event ) { + + //console.log( 'handleMouseWheel' ); + + if ( event.deltaY < 0 ) { + + dollyOut( getZoomScale() ); + + } else if ( event.deltaY > 0 ) { + + dollyIn( getZoomScale() ); + + } + + scope.update(); + + } + + function handleKeyDown( event ) { + + //console.log( 'handleKeyDown' ); + + switch ( event.keyCode ) { + + case scope.keys.UP: + pan( 0, scope.keyPanSpeed ); + scope.update(); + break; + + case scope.keys.BOTTOM: + pan( 0, - scope.keyPanSpeed ); + scope.update(); + break; + + case scope.keys.LEFT: + pan( scope.keyPanSpeed, 0 ); + scope.update(); + break; + + case scope.keys.RIGHT: + pan( - scope.keyPanSpeed, 0 ); + scope.update(); + break; + + } + + } + + function handleTouchStartRotate( event ) { + + //console.log( 'handleTouchStartRotate' ); + + rotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } + + function handleTouchStartDolly( event ) { + + //console.log( 'handleTouchStartDolly' ); + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyStart.set( 0, distance ); + + } + + function handleTouchStartPan( event ) { + + //console.log( 'handleTouchStartPan' ); + + panStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + } + + function handleTouchMoveRotate( event ) { + + //console.log( 'handleTouchMoveRotate' ); + + rotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + rotateDelta.subVectors( rotateEnd, rotateStart ); + + var element = scope.domElement === document ? scope.domElement.body : scope.domElement; + + // rotating across whole screen goes 360 degrees around + rotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed ); + + // rotating up and down along whole screen attempts to go 360, but limited to 180 + rotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed ); + + rotateStart.copy( rotateEnd ); + + scope.update(); + + } + + function handleTouchMoveDolly( event ) { + + //console.log( 'handleTouchMoveDolly' ); + + var dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX; + var dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY; + + var distance = Math.sqrt( dx * dx + dy * dy ); + + dollyEnd.set( 0, distance ); + + dollyDelta.subVectors( dollyEnd, dollyStart ); + + if ( dollyDelta.y > 0 ) { + + dollyOut( getZoomScale() ); + + } else if ( dollyDelta.y < 0 ) { + + dollyIn( getZoomScale() ); + + } + + dollyStart.copy( dollyEnd ); + + scope.update(); + + } + + function handleTouchMovePan( event ) { + + //console.log( 'handleTouchMovePan' ); + + panEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY ); + + panDelta.subVectors( panEnd, panStart ); + + pan( panDelta.x, panDelta.y ); + + panStart.copy( panEnd ); + + scope.update(); + + } + + function handleTouchEnd( event ) { + + //console.log( 'handleTouchEnd' ); + + } + + // + // event handlers - FSM: listen for events and reset state + // + + function onMouseDown( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + if ( event.button === scope.mouseButtons.ORBIT ) { + + if ( scope.enableRotate === false ) return; + + handleMouseDownRotate( event ); + + state = STATE.ROTATE; + + } else if ( event.button === scope.mouseButtons.ZOOM ) { + + if ( scope.enableZoom === false ) return; + + handleMouseDownDolly( event ); + + state = STATE.DOLLY; + + } else if ( event.button === scope.mouseButtons.PAN ) { + + if ( scope.enablePan === false ) return; + + handleMouseDownPan( event ); + + state = STATE.PAN; + + } + + if ( state !== STATE.NONE ) { + + document.addEventListener( 'mousemove', onMouseMove, false ); + document.addEventListener( 'mouseup', onMouseUp, false ); + + scope.dispatchEvent( startEvent ); + + } + + } + + function onMouseMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + + if ( state === STATE.ROTATE ) { + + if ( scope.enableRotate === false ) return; + + handleMouseMoveRotate( event ); + + } else if ( state === STATE.DOLLY ) { + + if ( scope.enableZoom === false ) return; + + handleMouseMoveDolly( event ); + + } else if ( state === STATE.PAN ) { + + if ( scope.enablePan === false ) return; + + handleMouseMovePan( event ); + + } + + } + + function onMouseUp( event ) { + + if ( scope.enabled === false ) return; + + handleMouseUp( event ); + + document.removeEventListener( 'mousemove', onMouseMove, false ); + document.removeEventListener( 'mouseup', onMouseUp, false ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onMouseWheel( event ) { + + if ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return; + + event.preventDefault(); + event.stopPropagation(); + + handleMouseWheel( event ); + + scope.dispatchEvent( startEvent ); // not sure why these are here... + scope.dispatchEvent( endEvent ); + + } + + function onKeyDown( event ) { + + if ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return; + + handleKeyDown( event ); + + } + + function onTouchStart( event ) { + + if ( scope.enabled === false ) return; + + switch ( event.touches.length ) { + + case 1: // one-fingered touch: rotate + + if ( scope.enableRotate === false ) return; + + handleTouchStartRotate( event ); + + state = STATE.TOUCH_ROTATE; + + break; + + case 2: // two-fingered touch: dolly + + if ( scope.enableZoom === false ) return; + + handleTouchStartDolly( event ); + + state = STATE.TOUCH_DOLLY; + + break; + + case 3: // three-fingered touch: pan + + if ( scope.enablePan === false ) return; + + handleTouchStartPan( event ); + + state = STATE.TOUCH_PAN; + + break; + + default: + + state = STATE.NONE; + + } + + if ( state !== STATE.NONE ) { + + scope.dispatchEvent( startEvent ); + + } + + } + + function onTouchMove( event ) { + + if ( scope.enabled === false ) return; + + event.preventDefault(); + event.stopPropagation(); + + switch ( event.touches.length ) { + + case 1: // one-fingered touch: rotate + + if ( scope.enableRotate === false ) return; + if ( state !== STATE.TOUCH_ROTATE ) return; // is this needed?... + + handleTouchMoveRotate( event ); + + break; + + case 2: // two-fingered touch: dolly + + if ( scope.enableZoom === false ) return; + if ( state !== STATE.TOUCH_DOLLY ) return; // is this needed?... + + handleTouchMoveDolly( event ); + + break; + + case 3: // three-fingered touch: pan + + if ( scope.enablePan === false ) return; + if ( state !== STATE.TOUCH_PAN ) return; // is this needed?... + + handleTouchMovePan( event ); + + break; + + default: + + state = STATE.NONE; + + } + + } + + function onTouchEnd( event ) { + + if ( scope.enabled === false ) return; + + handleTouchEnd( event ); + + scope.dispatchEvent( endEvent ); + + state = STATE.NONE; + + } + + function onContextMenu( event ) { + + event.preventDefault(); + + } + + // + + scope.domElement.addEventListener( 'contextmenu', onContextMenu, false ); + + scope.domElement.addEventListener( 'mousedown', onMouseDown, false ); + scope.domElement.addEventListener( 'wheel', onMouseWheel, false ); + + scope.domElement.addEventListener( 'touchstart', onTouchStart, false ); + scope.domElement.addEventListener( 'touchend', onTouchEnd, false ); + scope.domElement.addEventListener( 'touchmove', onTouchMove, false ); + + window.addEventListener( 'keydown', onKeyDown, false ); + + // force an update at start + + this.update(); + + }; + + OrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype ); + OrbitControls.prototype.constructor = OrbitControls; + + Object.defineProperties( OrbitControls.prototype, { + + center: { + + get: function () { + + console.warn( 'THREE.OrbitControls: .center has been renamed to .target' ); + return this.target; + + } + + }, + + // backward compatibility + + noZoom: { + + get: function () { + + console.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' ); + return ! this.enableZoom; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' ); + this.enableZoom = ! value; + + } + + }, + + noRotate: { + + get: function () { + + console.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' ); + return ! this.enableRotate; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' ); + this.enableRotate = ! value; + + } + + }, + + noPan: { + + get: function () { + + console.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' ); + return ! this.enablePan; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' ); + this.enablePan = ! value; + + } + + }, + + noKeys: { + + get: function () { + + console.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' ); + return ! this.enableKeys; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' ); + this.enableKeys = ! value; + + } + + }, + + staticMoving : { + + get: function () { + + console.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' ); + return ! this.enableDamping; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' ); + this.enableDamping = ! value; + + } + + }, + + dynamicDampingFactor : { + + get: function () { + + console.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.' ); + return this.dampingFactor; + + }, + + set: function ( value ) { + + console.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.' ); + this.dampingFactor = value; + + } + + } + + } ); + + return OrbitControls; + }; + + +/***/ }, +/* 8 */ +/***/ function(module, exports) { + + "use strict"; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + ///////////////////////////////////// + // Marching cubes lookup tables + ///////////////////////////////////// + + // Got these tables from https://www.clicktorelease.com/code/bumpy-metaballs/ + // These tables are straight from Paul Bourke's page: + // http://local.wasp.uwa.edu.au/~pbourke/geometry/polygonise/ + // who in turn got them from Cory Gene Bloyd. + + var EDGE_TABLE = new Int32Array([0x0, 0x109, 0x203, 0x30a, 0x406, 0x50f, 0x605, 0x70c, 0x80c, 0x905, 0xa0f, 0xb06, 0xc0a, 0xd03, 0xe09, 0xf00, 0x190, 0x99, 0x393, 0x29a, 0x596, 0x49f, 0x795, 0x69c, 0x99c, 0x895, 0xb9f, 0xa96, 0xd9a, 0xc93, 0xf99, 0xe90, 0x230, 0x339, 0x33, 0x13a, 0x636, 0x73f, 0x435, 0x53c, 0xa3c, 0xb35, 0x83f, 0x936, 0xe3a, 0xf33, 0xc39, 0xd30, 0x3a0, 0x2a9, 0x1a3, 0xaa, 0x7a6, 0x6af, 0x5a5, 0x4ac, 0xbac, 0xaa5, 0x9af, 0x8a6, 0xfaa, 0xea3, 0xda9, 0xca0, 0x460, 0x569, 0x663, 0x76a, 0x66, 0x16f, 0x265, 0x36c, 0xc6c, 0xd65, 0xe6f, 0xf66, 0x86a, 0x963, 0xa69, 0xb60, 0x5f0, 0x4f9, 0x7f3, 0x6fa, 0x1f6, 0xff, 0x3f5, 0x2fc, 0xdfc, 0xcf5, 0xfff, 0xef6, 0x9fa, 0x8f3, 0xbf9, 0xaf0, 0x650, 0x759, 0x453, 0x55a, 0x256, 0x35f, 0x55, 0x15c, 0xe5c, 0xf55, 0xc5f, 0xd56, 0xa5a, 0xb53, 0x859, 0x950, 0x7c0, 0x6c9, 0x5c3, 0x4ca, 0x3c6, 0x2cf, 0x1c5, 0xcc, 0xfcc, 0xec5, 0xdcf, 0xcc6, 0xbca, 0xac3, 0x9c9, 0x8c0, 0x8c0, 0x9c9, 0xac3, 0xbca, 0xcc6, 0xdcf, 0xec5, 0xfcc, 0xcc, 0x1c5, 0x2cf, 0x3c6, 0x4ca, 0x5c3, 0x6c9, 0x7c0, 0x950, 0x859, 0xb53, 0xa5a, 0xd56, 0xc5f, 0xf55, 0xe5c, 0x15c, 0x55, 0x35f, 0x256, 0x55a, 0x453, 0x759, 0x650, 0xaf0, 0xbf9, 0x8f3, 0x9fa, 0xef6, 0xfff, 0xcf5, 0xdfc, 0x2fc, 0x3f5, 0xff, 0x1f6, 0x6fa, 0x7f3, 0x4f9, 0x5f0, 0xb60, 0xa69, 0x963, 0x86a, 0xf66, 0xe6f, 0xd65, 0xc6c, 0x36c, 0x265, 0x16f, 0x66, 0x76a, 0x663, 0x569, 0x460, 0xca0, 0xda9, 0xea3, 0xfaa, 0x8a6, 0x9af, 0xaa5, 0xbac, 0x4ac, 0x5a5, 0x6af, 0x7a6, 0xaa, 0x1a3, 0x2a9, 0x3a0, 0xd30, 0xc39, 0xf33, 0xe3a, 0x936, 0x83f, 0xb35, 0xa3c, 0x53c, 0x435, 0x73f, 0x636, 0x13a, 0x33, 0x339, 0x230, 0xe90, 0xf99, 0xc93, 0xd9a, 0xa96, 0xb9f, 0x895, 0x99c, 0x69c, 0x795, 0x49f, 0x596, 0x29a, 0x393, 0x99, 0x190, 0xf00, 0xe09, 0xd03, 0xc0a, 0xb06, 0xa0f, 0x905, 0x80c, 0x70c, 0x605, 0x50f, 0x406, 0x30a, 0x203, 0x109, 0x0]); + + var TRI_TABLE = new Int32Array([-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 8, 3, 9, 8, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 8, 3, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 2, 10, 0, 2, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2, 8, 3, 2, 10, 8, 10, 9, 8, -1, -1, -1, -1, -1, -1, -1, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 11, 2, 8, 11, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 9, 0, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 11, 2, 1, 9, 11, 9, 8, 11, -1, -1, -1, -1, -1, -1, -1, 3, 10, 1, 11, 10, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 10, 1, 0, 8, 10, 8, 11, 10, -1, -1, -1, -1, -1, -1, -1, 3, 9, 0, 3, 11, 9, 11, 10, 9, -1, -1, -1, -1, -1, -1, -1, 9, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 3, 0, 7, 3, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 9, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 1, 9, 4, 7, 1, 7, 3, 1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 10, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 4, 7, 3, 0, 4, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, 9, 2, 10, 9, 0, 2, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, 2, 10, 9, 2, 9, 7, 2, 7, 3, 7, 9, 4, -1, -1, -1, -1, 8, 4, 7, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 11, 4, 7, 11, 2, 4, 2, 0, 4, -1, -1, -1, -1, -1, -1, -1, 9, 0, 1, 8, 4, 7, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, 4, 7, 11, 9, 4, 11, 9, 11, 2, 9, 2, 1, -1, -1, -1, -1, 3, 10, 1, 3, 11, 10, 7, 8, 4, -1, -1, -1, -1, -1, -1, -1, 1, 11, 10, 1, 4, 11, 1, 0, 4, 7, 11, 4, -1, -1, -1, -1, 4, 7, 8, 9, 0, 11, 9, 11, 10, 11, 0, 3, -1, -1, -1, -1, 4, 7, 11, 4, 11, 9, 9, 11, 10, -1, -1, -1, -1, -1, -1, -1, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 5, 4, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 5, 4, 1, 5, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 8, 5, 4, 8, 3, 5, 3, 1, 5, -1, -1, -1, -1, -1, -1, -1, 1, 2, 10, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 8, 1, 2, 10, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1, 5, 2, 10, 5, 4, 2, 4, 0, 2, -1, -1, -1, -1, -1, -1, -1, 2, 10, 5, 3, 2, 5, 3, 5, 4, 3, 4, 8, -1, -1, -1, -1, 9, 5, 4, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 11, 2, 0, 8, 11, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1, 0, 5, 4, 0, 1, 5, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, 2, 1, 5, 2, 5, 8, 2, 8, 11, 4, 8, 5, -1, -1, -1, -1, 10, 3, 11, 10, 1, 3, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, 4, 9, 5, 0, 8, 1, 8, 10, 1, 8, 11, 10, -1, -1, -1, -1, 5, 4, 0, 5, 0, 11, 5, 11, 10, 11, 0, 3, -1, -1, -1, -1, 5, 4, 8, 5, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1, 9, 7, 8, 5, 7, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 3, 0, 9, 5, 3, 5, 7, 3, -1, -1, -1, -1, -1, -1, -1, 0, 7, 8, 0, 1, 7, 1, 5, 7, -1, -1, -1, -1, -1, -1, -1, 1, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 7, 8, 9, 5, 7, 10, 1, 2, -1, -1, -1, -1, -1, -1, -1, 10, 1, 2, 9, 5, 0, 5, 3, 0, 5, 7, 3, -1, -1, -1, -1, 8, 0, 2, 8, 2, 5, 8, 5, 7, 10, 5, 2, -1, -1, -1, -1, 2, 10, 5, 2, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1, 7, 9, 5, 7, 8, 9, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, 9, 5, 7, 9, 7, 2, 9, 2, 0, 2, 7, 11, -1, -1, -1, -1, 2, 3, 11, 0, 1, 8, 1, 7, 8, 1, 5, 7, -1, -1, -1, -1, 11, 2, 1, 11, 1, 7, 7, 1, 5, -1, -1, -1, -1, -1, -1, -1, 9, 5, 8, 8, 5, 7, 10, 1, 3, 10, 3, 11, -1, -1, -1, -1, 5, 7, 0, 5, 0, 9, 7, 11, 0, 1, 0, 10, 11, 10, 0, -1, 11, 10, 0, 11, 0, 3, 10, 5, 0, 8, 0, 7, 5, 7, 0, -1, 11, 10, 5, 7, 11, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 8, 3, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 9, 0, 1, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 8, 3, 1, 9, 8, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, 1, 6, 5, 2, 6, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 6, 5, 1, 2, 6, 3, 0, 8, -1, -1, -1, -1, -1, -1, -1, 9, 6, 5, 9, 0, 6, 0, 2, 6, -1, -1, -1, -1, -1, -1, -1, 5, 9, 8, 5, 8, 2, 5, 2, 6, 3, 2, 8, -1, -1, -1, -1, 2, 3, 11, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 11, 0, 8, 11, 2, 0, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, 0, 1, 9, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, 5, 10, 6, 1, 9, 2, 9, 11, 2, 9, 8, 11, -1, -1, -1, -1, 6, 3, 11, 6, 5, 3, 5, 1, 3, -1, -1, -1, -1, -1, -1, -1, 0, 8, 11, 0, 11, 5, 0, 5, 1, 5, 11, 6, -1, -1, -1, -1, 3, 11, 6, 0, 3, 6, 0, 6, 5, 0, 5, 9, -1, -1, -1, -1, 6, 5, 9, 6, 9, 11, 11, 9, 8, -1, -1, -1, -1, -1, -1, -1, 5, 10, 6, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 3, 0, 4, 7, 3, 6, 5, 10, -1, -1, -1, -1, -1, -1, -1, 1, 9, 0, 5, 10, 6, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, 10, 6, 5, 1, 9, 7, 1, 7, 3, 7, 9, 4, -1, -1, -1, -1, 6, 1, 2, 6, 5, 1, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, 1, 2, 5, 5, 2, 6, 3, 0, 4, 3, 4, 7, -1, -1, -1, -1, 8, 4, 7, 9, 0, 5, 0, 6, 5, 0, 2, 6, -1, -1, -1, -1, 7, 3, 9, 7, 9, 4, 3, 2, 9, 5, 9, 6, 2, 6, 9, -1, 3, 11, 2, 7, 8, 4, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, 5, 10, 6, 4, 7, 2, 4, 2, 0, 2, 7, 11, -1, -1, -1, -1, 0, 1, 9, 4, 7, 8, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1, 9, 2, 1, 9, 11, 2, 9, 4, 11, 7, 11, 4, 5, 10, 6, -1, 8, 4, 7, 3, 11, 5, 3, 5, 1, 5, 11, 6, -1, -1, -1, -1, 5, 1, 11, 5, 11, 6, 1, 0, 11, 7, 11, 4, 0, 4, 11, -1, 0, 5, 9, 0, 6, 5, 0, 3, 6, 11, 6, 3, 8, 4, 7, -1, 6, 5, 9, 6, 9, 11, 4, 7, 9, 7, 11, 9, -1, -1, -1, -1, 10, 4, 9, 6, 4, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 4, 10, 6, 4, 9, 10, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, 10, 0, 1, 10, 6, 0, 6, 4, 0, -1, -1, -1, -1, -1, -1, -1, 8, 3, 1, 8, 1, 6, 8, 6, 4, 6, 1, 10, -1, -1, -1, -1, 1, 4, 9, 1, 2, 4, 2, 6, 4, -1, -1, -1, -1, -1, -1, -1, 3, 0, 8, 1, 2, 9, 2, 4, 9, 2, 6, 4, -1, -1, -1, -1, 0, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 8, 3, 2, 8, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1, 10, 4, 9, 10, 6, 4, 11, 2, 3, -1, -1, -1, -1, -1, -1, -1, 0, 8, 2, 2, 8, 11, 4, 9, 10, 4, 10, 6, -1, -1, -1, -1, 3, 11, 2, 0, 1, 6, 0, 6, 4, 6, 1, 10, -1, -1, -1, -1, 6, 4, 1, 6, 1, 10, 4, 8, 1, 2, 1, 11, 8, 11, 1, -1, 9, 6, 4, 9, 3, 6, 9, 1, 3, 11, 6, 3, -1, -1, -1, -1, 8, 11, 1, 8, 1, 0, 11, 6, 1, 9, 1, 4, 6, 4, 1, -1, 3, 11, 6, 3, 6, 0, 0, 6, 4, -1, -1, -1, -1, -1, -1, -1, 6, 4, 8, 11, 6, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 7, 10, 6, 7, 8, 10, 8, 9, 10, -1, -1, -1, -1, -1, -1, -1, 0, 7, 3, 0, 10, 7, 0, 9, 10, 6, 7, 10, -1, -1, -1, -1, 10, 6, 7, 1, 10, 7, 1, 7, 8, 1, 8, 0, -1, -1, -1, -1, 10, 6, 7, 10, 7, 1, 1, 7, 3, -1, -1, -1, -1, -1, -1, -1, 1, 2, 6, 1, 6, 8, 1, 8, 9, 8, 6, 7, -1, -1, -1, -1, 2, 6, 9, 2, 9, 1, 6, 7, 9, 0, 9, 3, 7, 3, 9, -1, 7, 8, 0, 7, 0, 6, 6, 0, 2, -1, -1, -1, -1, -1, -1, -1, 7, 3, 2, 6, 7, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 2, 3, 11, 10, 6, 8, 10, 8, 9, 8, 6, 7, -1, -1, -1, -1, 2, 0, 7, 2, 7, 11, 0, 9, 7, 6, 7, 10, 9, 10, 7, -1, 1, 8, 0, 1, 7, 8, 1, 10, 7, 6, 7, 10, 2, 3, 11, -1, 11, 2, 1, 11, 1, 7, 10, 6, 1, 6, 7, 1, -1, -1, -1, -1, 8, 9, 6, 8, 6, 7, 9, 1, 6, 11, 6, 3, 1, 3, 6, -1, 0, 9, 1, 11, 6, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 7, 8, 0, 7, 0, 6, 3, 11, 0, 11, 6, 0, -1, -1, -1, -1, 7, 11, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 3, 0, 8, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 9, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 8, 1, 9, 8, 3, 1, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, 10, 1, 2, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 1, 2, 10, 3, 0, 8, 6, 11, 7, -1, -1, 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Object.defineProperty(exports, "__esModule", { + value: true + }); + + var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); + + var _metaball = __webpack_require__(10); + + var _metaball2 = _interopRequireDefault(_metaball); + + var _inspect_point = __webpack_require__(11); + + var _inspect_point2 = _interopRequireDefault(_inspect_point); + + var _marching_cube_LUT = __webpack_require__(8); + + var _marching_cube_LUT2 = _interopRequireDefault(_marching_cube_LUT); + + function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } + + function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + + var THREE = __webpack_require__(6); + + var VISUAL_DEBUG = true; + var E = 1e-5; + + var LAMBERT_WHITE = new THREE.MeshLambertMaterial({ color: 0xeeeeee }); + var LAMBERT_GREEN = new THREE.MeshBasicMaterial({ color: 0x00ee00, transparent: true, opacity: 0.5 }); + var WIREFRAME_MAT = new THREE.LineBasicMaterial({ color: 0xffffff, linewidth: 10 }); + + var STD_UNIFORMS = function STD_UNIFORMS(obj) { + return Object.assign({ + u_albedo: { + type: 'vec3', + value: new THREE.Color(0xFF0000) + }, + u_ambient: { + type: 'v3', + value: new THREE.Color(0xFFFFFF) + }, + u_lightCol: { + type: 'v3', + value: new THREE.Color(0xFFFFFF) + }, + u_lightPos: { + type: 'v3', + value: new THREE.Vector3(5, 10, 10) + }, + u_lightIntensity: { + type: 'f', + value: 0.1 + }, + u_viewPos: { + type: 'v3', + value: window.viewPos + } + }, obj); + }; + + var MarchingCubes = function () { + function MarchingCubes(App) { + _classCallCheck(this, MarchingCubes); + + this.init(App); + } + + _createClass(MarchingCubes, [{ + key: 'init', + value: function init(App) { + this.isPaused = false; + VISUAL_DEBUG = App.config.visualDebug; + + // Initializing member variables. + // Additional variables are used for fast computation. + this.origin = new THREE.Vector3(0); + + this.isolevel = App.config.isolevel; + this.minRadius = App.config.minRadius; + this.maxRadius = App.config.maxRadius; + + this.gridCellWidth = App.config.gridCellWidth; + this.halfCellWidth = App.config.gridCellWidth / 2.0; + this.gridWidth = App.config.gridWidth; + + this.res = App.config.gridRes; + this.res2 = App.config.gridRes * App.config.gridRes; + this.res3 = App.config.gridRes * App.config.gridRes * App.config.gridRes; + + this.maxSpeed = App.config.maxSpeed; + this.numMetaballs = App.config.numMetaballs; + + this.camera = App.camera; + this.scene = App.scene; + + this.voxels = []; + this.labels = []; + this.balls = []; + + this.showSpheres = true; + this.showGrid = true; + + if (App.config.material) { + this.material = new THREE.MeshPhongMaterial({ color: 0xff6a1d }); + } else { + this.material = App.config.material; + } + + this.setupCells(); + this.setupMetaballs(); + this.makeMesh(); + } + }, { + key: 'i1toi3', + + + // Convert from 1D index to 3D indices + value: function i1toi3(i1) { + + // [i % w, i % (h * w)) / w, i / (h * w)] + + // @note: ~~ is a fast substitute for Math.floor() + return [i1 % this.res, ~~(i1 % this.res2 / this.res), ~~(i1 / this.res2)]; + } + }, { + key: 'i3toi1', + + + // Convert from 3D indices to 1 1D + value: function i3toi1(i3x, i3y, i3z) { + + // [x + y * w + z * w * h] + + return i3x + i3y * this.res + i3z * this.res2; + } + }, { + key: 'i3toPos', + + + // Convert from 3D indices to 3D positions + value: function i3toPos(i3) { + + return new THREE.Vector3(i3[0] * this.gridCellWidth + this.origin.x + this.halfCellWidth, i3[1] * this.gridCellWidth + this.origin.y + this.halfCellWidth, i3[2] * this.gridCellWidth + this.origin.z + this.halfCellWidth); + } + }, { + key: 'setupCells', + value: function setupCells() { + + // Allocate voxels based on our grid resolution + this.voxels = []; + for (var i = 0; i < this.res3; i++) { + var i3 = this.i1toi3(i); + + var _i3toPos = this.i3toPos(i3), + x = _i3toPos.x, + y = _i3toPos.y, + z = _i3toPos.z; + + var voxel = new Voxel(new THREE.Vector3(x, y, z), this.gridCellWidth); + this.voxels.push(voxel); + + if (VISUAL_DEBUG) { + this.scene.add(voxel.wireframe); + this.scene.add(voxel.mesh); + } + } + } + }, { + key: 'setupMetaballs', + value: function setupMetaballs() { + + this.balls = []; + + var x, y, z, vx, vy, vz, radius, pos, vel; + var matLambertWhite = LAMBERT_WHITE; + var maxRadiusTRippled = this.maxRadius * 3; + var maxRadiusDoubled = this.maxRadius * 2; + + // Randomly generate metaballs with different sizes and velocities + for (var i = 0; i < this.numMetaballs; i++) { + x = this.gridWidth / 2; + y = this.gridWidth / 2; + z = this.gridWidth / 2; + pos = new THREE.Vector3(x, y, z); + + vx = (Math.random() * 2 - 1) * this.maxSpeed; + vy = (Math.random() * 2 - 1) * this.maxSpeed; + vz = (Math.random() * 2 - 1) * this.maxSpeed; + vel = new THREE.Vector3(vx, vy, vz); + + radius = Math.random() * (this.maxRadius - this.minRadius) + this.minRadius; + + var ball = new _metaball2.default(pos, radius, vel, this.gridWidth, VISUAL_DEBUG); + this.balls.push(ball); + + if (VISUAL_DEBUG) { + this.scene.add(ball.mesh); + } + } + } + + // This function samples a point from the metaball's density function + // Implement a function that returns the value of the all metaballs influence to a given point. + // Please follow the resources given in the write-up for details. + + }, { + key: 'sample', + value: function sample(point) { + var isovalue = 0.0; + for (var i = 0; i < this.balls.length; i++) { + isovalue += this.balls[i].radius2 / point.distanceToSquared(this.balls[i].pos); + } + return isovalue; + } + }, { + key: 'update', + value: function update() { + + if (this.isPaused) { + return; + } + + // This should move the metaballs + this.balls.forEach(function (ball) { + ball.update(); + }); + + for (var c = 0; c < this.res3; c++) { + + // Sampling the center point + this.voxels[c].center.isovalue = this.sample(this.voxels[c].center.pos); + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].isovalue = this.sample(this.voxels[c].corners[i].pos); + } + + // Visualizing grid + if (VISUAL_DEBUG && this.showGrid) { + + // Toggle voxels on or off + if (this.voxels[c].center.isovalue > this.isolevel) { + this.voxels[c].show(); + } else { + this.voxels[c].hide(); + } + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].updateLabel(this.camera); + } + } else { + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].clearLabel(); + } + } + } + + this.updateMesh(); + } + }, { + key: 'pause', + value: function pause() { + this.isPaused = true; + } + }, { + key: 'play', + value: function play() { + this.isPaused = false; + } + }, { + key: 'show', + value: function show() { + for (var i = 0; i < this.res3; i++) { + this.voxels[i].show(); + } + this.showGrid = true; + } + }, { + key: 'hide', + value: function hide() { + for (var i = 0; i < this.res3; i++) { + this.voxels[i].hide(); + } + this.showGrid = false; + } + }, { + key: 'makeMesh', + value: function makeMesh() { + this.mesh = new THREE.Mesh(new THREE.Geometry(), LAMBERT_GREEN); + this.mesh.geometry.dynamic = true; + this.scene.add(this.mesh); + } + }, { + key: 'updateMesh', + value: function updateMesh() { + var newVertices = []; + var newFaces = []; + + var faceIdx = 0; + + for (var i = 0; i < this.voxels.length; i++) { + var poly = this.voxels[i].polygonize(this.isolevel, this.sample.bind(this)); + + for (var j = 0; j < poly.vertexPositions.length; j += 3) { + var vp = poly.vertexPositions; + newVertices.push(vp[j], vp[j + 1], vp[j + 2]); + var vn = poly.vertexNormals; + var normals = [vn[j], vn[j + 1], vn[j + 2]]; + newFaces.push(new THREE.Face3(3 * faceIdx, 3 * faceIdx + 1, 3 * faceIdx + 2)); + faceIdx++; + } + } + + this.mesh.geometry.vertices = newVertices; + this.mesh.geometry.faces = newFaces; + + this.mesh.geometry.verticesNeedUpdate = true; + this.mesh.geometry.elementsNeedUpdate = true; + + this.mesh.geometry.computeFaceNormals(); + } + }]); + + return MarchingCubes; + }(); + + exports.default = MarchingCubes; + ; + + // ------------------------------------------- // + + var Voxel = function () { + function Voxel(position, gridCellWidth) { + _classCallCheck(this, Voxel); + + this.init(position, gridCellWidth); + } + + _createClass(Voxel, [{ + key: 'init', + value: function init(position, gridCellWidth) { + this.pos = position; + this.gridCellWidth = gridCellWidth; + + if (VISUAL_DEBUG) { + this.makeMesh(); + } + + this.makeInspectPoints(); + } + }, { + key: 'makeMesh', + value: function makeMesh() { + var halfGridCellWidth = this.gridCellWidth / 2.0; + + var positions = new Float32Array([ + // Front face + halfGridCellWidth, halfGridCellWidth, halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth, halfGridCellWidth, + + // Back face + -halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth]); + + var indices = new Uint16Array([0, 1, 2, 3, 4, 5, 6, 7, 0, 7, 7, 4, 4, 3, 3, 0, 1, 6, 6, 5, 5, 2, 2, 1]); + + // Buffer geometry + var geo = new THREE.BufferGeometry(); + geo.setIndex(new THREE.BufferAttribute(indices, 1)); + geo.addAttribute('position', new THREE.BufferAttribute(positions, 3)); + + // Wireframe line segments + this.wireframe = new THREE.LineSegments(geo, WIREFRAME_MAT); + this.wireframe.position.set(this.pos.x, this.pos.y, this.pos.z); + + // Green cube + geo = new THREE.BoxBufferGeometry(this.gridCellWidth, this.gridCellWidth, this.gridCellWidth); + this.mesh = new THREE.Mesh(geo, LAMBERT_GREEN); + this.mesh.position.set(this.pos.x, this.pos.y, this.pos.z); + } + }, { + key: 'makeInspectPoints', + value: function makeInspectPoints() { + var halfGridCellWidth = this.gridCellWidth / 2.0; + var x = this.pos.x; + var y = this.pos.y; + var z = this.pos.z; + var red = 0xff0000; + + // Center dot + this.center = new _inspect_point2.default(new THREE.Vector3(x, y, z), 0, VISUAL_DEBUG); + + this.corners = []; + + this.corners[0] = new _inspect_point2.default(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[1] = new _inspect_point2.default(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[2] = new _inspect_point2.default(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[3] = new _inspect_point2.default(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[4] = new _inspect_point2.default(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[5] = new _inspect_point2.default(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[6] = new _inspect_point2.default(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[7] = new _inspect_point2.default(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + } + }, { + key: 'show', + value: function show() { + if (this.mesh) { + this.mesh.visible = true; + } + if (this.wireframe) { + this.wireframe.visible = true; + } + } + }, { + key: 'hide', + value: function hide() { + if (this.mesh) { + this.mesh.visible = false; + } + + if (this.wireframe) { + this.wireframe.visible = false; + } + + if (this.center) { + this.center.clearLabel(); + } + } + }, { + key: 'vertexInterpolation', + value: function vertexInterpolation(isolevel, posA, posB) { + var t = (isolevel - posA.isovalue) / (posB.isovalue - posA.isovalue); + return new THREE.Vector3(posA.pos.x + t * (posB.pos.x - posA.pos.x), posA.pos.y + t * (posB.pos.y - posA.pos.y), posA.pos.z + t * (posB.pos.z - posA.pos.z)); + } + }, { + key: 'polygonize', + value: function polygonize(isolevel, sample) { + + var vertexPositions = []; + var vertexNormals = []; + + var idx = 0; + + for (var i = 0; i < 8; i++) { + if (this.corners[i].isovalue < isolevel) { + idx |= Math.pow(2, i); + } + } + + if (_marching_cube_LUT2.default.EDGE_TABLE[idx] == 0) { + return { + vertexPositions: vertexPositions, + vertexNormals: vertexNormals + }; + } + + var vertexlist = []; + for (var i = 0; i < 12; i++) { + var c = i % 8; + var n = c + 1; + if (i < 8 && (i + 1) % 4 == 0) { + n = c - 3; + } + if (i >= 8) { + n = c + 4; + } + if (_marching_cube_LUT2.default.EDGE_TABLE[idx] & Math.pow(2, i)) { + vertexlist[i] = this.vertexInterpolation(isolevel, this.corners[c], this.corners[n]); + } + } + + for (var i = 0; i < 16; i++) { + var tri = _marching_cube_LUT2.default.TRI_TABLE[16 * idx + i]; + + if (tri < 0) { + break; + } + + var pt = vertexlist[tri]; + var s = sample(pt); + var delta = new THREE.Vector3(sample(new THREE.Vector3(E, 0, 0).add(pt)), sample(new THREE.Vector3(0, E, 0).add(pt)), sample(new THREE.Vector3(0, 0, E).add(pt))); + var normal = delta.subScalar(s).normalize(); + + vertexPositions.push(pt); + vertexNormals.push(normal); + } + + return { + vertexPositions: vertexPositions, + vertexNormals: vertexNormals + }; + } + }]); + + return Voxel; + }(); + +/***/ }, +/* 10 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); + + function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + + var THREE = __webpack_require__(6); + + var SPHERE_GEO = new THREE.SphereBufferGeometry(1, 16, 16); + var LAMBERT_WHITE = new THREE.MeshLambertMaterial({ color: 0x9EB3D8, transparent: true, opacity: 0.5 }); + + var Metaball = function () { + function Metaball(pos, radius, vel, gridWidth, visualDebug) { + _classCallCheck(this, Metaball); + + this.init(pos, radius, vel, gridWidth, visualDebug); + } + + _createClass(Metaball, [{ + key: 'init', + value: function init(pos, radius, vel, gridWidth, visualDebug) { + this.gridWidth = gridWidth; + this.pos = pos; + this.vel = vel; + + this.radius = radius; + this.radius2 = radius * radius; + this.mesh = null; + + if (visualDebug) { + this.makeMesh(); + } + } + }, { + key: 'makeMesh', + value: function makeMesh() { + this.mesh = new THREE.Mesh(SPHERE_GEO, LAMBERT_WHITE); + this.mesh.position.set(this.pos.x, this.pos.y, this.pos.z); + this.mesh.scale.set(this.radius, this.radius, this.radius); + } + }, { + key: 'show', + value: function show() { + if (this.mesh) { + this.mesh.visible = true; + } + } + }, { + key: 'hide', + value: function hide() { + if (this.mesh) { + this.mesh.visible = false; + } + } + }, { + key: 'update', + value: function update() { + + var pos = new THREE.Vector3().addVectors(this.pos, this.vel); + + var min = 2 * this.radius; + var max = this.gridWidth - min; + + if (pos.x > max || pos.x < min) { + this.vel.x *= -1.0; + } + if (pos.y > max || pos.y < min) { + this.vel.y *= -1.0; + } + if (pos.z > max || pos.z < min) { + this.vel.z *= -1.0; + } + + this.pos.add(this.vel); + } + }]); + + return Metaball; + }(); + + exports.default = Metaball; + +/***/ }, +/* 11 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + Object.defineProperty(exports, "__esModule", { + value: true + }); + + var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); + + function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } + + var THREE = __webpack_require__(6); + + var POINT_MATERIAL = new THREE.PointsMaterial({ color: 0xee1111, size: 10, sizeAttenuation: true }); + + var InspectPoint = function () { + function InspectPoint(pos, isovalue, visualDebug) { + _classCallCheck(this, InspectPoint); + + this.init(pos, isovalue, visualDebug); + } + + _createClass(InspectPoint, [{ + key: 'init', + value: function init(pos, isovalue, visualDebug) { + this.pos = pos; + this.isovalue = isovalue; + this.label = null; + + if (visualDebug) { + this.makeLabel(); + } + } + }, { + key: 'makeLabel', + + + // Create an HTML div for holding label + value: function makeLabel() { + this.label = document.createElement('div'); + this.label.style.position = 'absolute'; + this.label.style.width = 100; + this.label.style.height = 100; + this.label.style.userSelect = 'none'; + this.label.style.cursor = 'default'; + this.label.style.fontSize = '0.3em'; + this.label.style.pointerEvents = 'none'; + document.body.appendChild(this.label); + } + }, { + key: 'updateLabel', + value: function updateLabel(camera) { + if (this.label) { + var screenPos = this.pos.clone().project(camera); + screenPos.x = (screenPos.x + 1) / 2 * window.innerWidth;; + screenPos.y = -(screenPos.y - 1) / 2 * window.innerHeight;; + + this.label.style.top = screenPos.y + 'px'; + this.label.style.left = screenPos.x + 'px'; + this.label.innerHTML = this.isovalue.toFixed(2); + this.label.style.opacity = this.isovalue - 0.5; + } + } + }, { + key: 'clearLabel', + value: function clearLabel() { + if (this.label) { + this.label.innerHTML = ''; + this.label.style.opacity = 0; + } + } + }]); + + return InspectPoint; + }(); + + exports.default = InspectPoint; + +/***/ }, +/* 12 */ +/***/ function(module, exports, __webpack_require__) { + + module.exports = __webpack_require__.p + "index.html"; + +/***/ } +/******/ ]); +//# sourceMappingURL=bundle.js.map \ No newline at end of file diff --git a/build/bundle.js.map b/build/bundle.js.map new file mode 100644 index 0000000..62045c1 --- /dev/null +++ b/build/bundle.js.map @@ -0,0 +1 @@ +{"version":3,"sources":["webpack:///webpack/bootstrap 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\t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId])\n \t\t\treturn installedModules[moduleId].exports;\n\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\texports: {},\n \t\t\tid: moduleId,\n \t\t\tloaded: false\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.loaded = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 3b6898637e765f392c04","require('file-loader?name=[name].[ext]!../index.html');\n\n// Credit:\n// http://jamie-wong.com/2014/08/19/metaballs-and-marching-squares/\n// http://paulbourke.net/geometry/polygonise/\n\nconst THREE = require('three'); // older modules are imported like this. You shouldn't have to worry about this much\n\nimport Framework from './framework'\nimport LUT from './marching_cube_LUT.js'\nimport MarchingCubes from './marching_cubes.js'\n\nconst DEFAULT_VISUAL_DEBUG = false;\nconst DEFAULT_ISO_LEVEL = 1.0;\nconst DEFAULT_GRID_RES = 30;\nconst DEFAULT_GRID_WIDTH = 15;\nconst DEFAULT_NUM_METABALLS = 5;\nconst DEFAULT_MIN_RADIUS = 1.0;\nconst DEFAULT_MAX_RADIUS = 1.5;\nconst DEFAULT_MAX_SPEED = 0.05;\n\nvar App = {\n // \n marchingCubes: undefined,\n config: {\n // Global control of all visual debugging. \n // This can be set to false to disallow any memory allocation of visual debugging components. \n // **Note**: If your application experiences performance drop, disable this flag.\n visualDebug: DEFAULT_VISUAL_DEBUG,\n\n // The isolevel for marching cubes\n isolevel: DEFAULT_ISO_LEVEL,\n\n // Grid resolution in each dimension. If gridRes = 4, then we have a 4x4x4 grid\n gridRes: DEFAULT_GRID_RES,\n\n // Total width of grid\n gridWidth: DEFAULT_GRID_WIDTH,\n\n // Width of each voxel\n // Ideally, we want the voxel to be small (higher resolution)\n gridCellWidth: DEFAULT_GRID_WIDTH / DEFAULT_GRID_RES,\n\n // Number of metaballs\n numMetaballs: DEFAULT_NUM_METABALLS,\n\n // Minimum radius of a metaball\n minRadius: DEFAULT_MIN_RADIUS,\n\n // Maxium radius of a metaball\n maxRadius: DEFAULT_MAX_RADIUS,\n\n // Maximum speed of a metaball\n maxSpeed: DEFAULT_MAX_SPEED\n },\n\n // Scene's framework objects\n camera: undefined,\n scene: undefined,\n renderer: undefined,\n\n // Play/pause control for the simulation\n isPaused: false\n};\n\n// called after the scene loads\nfunction onLoad(framework) {\n\n var {scene, camera, renderer, gui, stats} = framework;\n App.scene = scene;\n App.camera = camera;\n App.renderer = renderer;\n\n renderer.setClearColor( 0xbfd1e5 );\n scene.add(new THREE.AxisHelper(20));\n\n setupCamera(App.camera);\n setupLights(App.scene);\n setupScene(App.scene);\n setupGUI(gui);\n}\n\n// called on frame updates\nfunction onUpdate(framework) {\n\n if (App.marchingCubes) {\n App.marchingCubes.update();\n }\n}\n\nfunction setupCamera(camera) {\n // set camera position\n camera.position.set(5, 5, 30);\n camera.lookAt(new THREE.Vector3(0,0,0));\n}\n\nfunction setupLights(scene) {\n\n // Directional light\n var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 );\n directionalLight.color.setHSL(0.1, 1, 0.95);\n directionalLight.position.set(-10, -10, 10);\n directionalLight.position.multiplyScalar(10);\n\n scene.add(directionalLight);\n}\n\nfunction setupScene(scene) {\n App.marchingCubes = new MarchingCubes(App);\n}\n\nfunction clearScene() {\n var scene = App.scene;\n scene.children.forEach(function(object){\n scene.remove(object);\n });\n scene.add(new THREE.AxisHelper(20));\n setupCamera(App.camera);\n setupLights(App.scene);\n setupScene(App.scene);\n}\n\nfunction setupGUI(gui) {\n\n // more information here: https://workshop.chromeexperiments.com/examples/gui/#1--Basic-Usage\n \n // --- CONFIG ---\n gui.add(App, 'isPaused').onChange(function(value) {\n App.isPaused = value;\n if (value) {\n App.marchingCubes.pause();\n } else {\n App.marchingCubes.play();\n }\n });\n\n gui.add(App.config, 'numMetaballs', 1, 10).step(1).onChange(function(value) {\n clearScene();\n App.config.numMetaballs = value;\n App.marchingCubes.init(App);\n }); \n}\n\n// when the scene is done initializing, it will call onLoad, then on frame updates, call onUpdate\nFramework.init(onLoad, onUpdate);\n\n\n// WEBPACK FOOTER //\n// ./src/main.js","\nconst THREE = require('three');\nconst OrbitControls = require('three-orbit-controls')(THREE)\nimport Stats from 'stats-js'\nimport DAT from 'dat-gui'\n\n// when the scene is done initializing, the function passed as `callback` will be executed\n// then, every frame, the function passed as `update` will be executed\nfunction init(callback, update) {\n var stats = new Stats();\n stats.setMode(1);\n stats.domElement.style.position = 'absolute';\n stats.domElement.style.left = '0px';\n stats.domElement.style.top = '0px';\n document.body.appendChild(stats.domElement);\n\n var gui = new DAT.GUI();\n\n var framework = {\n gui: gui,\n stats: stats\n };\n\n // run this function after the window loads\n window.addEventListener('load', function() {\n\n var scene = new THREE.Scene();\n var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );\n var renderer = new THREE.WebGLRenderer( { antialias: true } );\n renderer.setPixelRatio(window.devicePixelRatio);\n renderer.setSize(window.innerWidth, window.innerHeight);\n renderer.setClearColor(0x020202, 0);\n\n var controls = new OrbitControls(camera, renderer.domElement);\n controls.enableDamping = true;\n controls.enableZoom = true;\n controls.target.set(0, 0, 0);\n controls.rotateSpeed = 0.3;\n controls.zoomSpeed = 1.0;\n controls.panSpeed = 2.0;\n controls.addEventListener('change', function() {\n camera.hasMoved = true;\n });\n\n document.body.appendChild(renderer.domElement);\n\n // resize the canvas when the window changes\n window.addEventListener('resize', function() {\n camera.aspect = window.innerWidth / window.innerHeight;\n camera.updateProjectionMatrix();\n renderer.setSize(window.innerWidth, window.innerHeight);\n }, false);\n\n // assign THREE.js objects to the object we will return\n framework.scene = scene;\n framework.camera = camera;\n framework.renderer = renderer;\n\n // begin the animation loop\n (function tick() {\n stats.begin();\n update(framework); // perform any requested updates\n renderer.render(scene, camera); // render the scene\n stats.end();\n requestAnimationFrame(tick); // register to call this again when the browser renders a new frame\n })();\n\n // we will pass the scene, gui, renderer, camera, etc... to the callback function\n return callback(framework);\n });\n}\n\nexport default {\n init: init\n}\n\n\n\n// WEBPACK FOOTER //\n// ./src/framework.js","// stats.js - http://github.com/mrdoob/stats.js\nvar Stats=function(){var l=Date.now(),m=l,g=0,n=Infinity,o=0,h=0,p=Infinity,q=0,r=0,s=0,f=document.createElement(\"div\");f.id=\"stats\";f.addEventListener(\"mousedown\",function(b){b.preventDefault();t(++s%2)},!1);f.style.cssText=\"width:80px;opacity:0.9;cursor:pointer\";var a=document.createElement(\"div\");a.id=\"fps\";a.style.cssText=\"padding:0 0 3px 3px;text-align:left;background-color:#002\";f.appendChild(a);var i=document.createElement(\"div\");i.id=\"fpsText\";i.style.cssText=\"color:#0ff;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px\";\ni.innerHTML=\"FPS\";a.appendChild(i);var c=document.createElement(\"div\");c.id=\"fpsGraph\";c.style.cssText=\"position:relative;width:74px;height:30px;background-color:#0ff\";for(a.appendChild(c);74>c.children.length;){var j=document.createElement(\"span\");j.style.cssText=\"width:1px;height:30px;float:left;background-color:#113\";c.appendChild(j)}var d=document.createElement(\"div\");d.id=\"ms\";d.style.cssText=\"padding:0 0 3px 3px;text-align:left;background-color:#020;display:none\";f.appendChild(d);var k=document.createElement(\"div\");\nk.id=\"msText\";k.style.cssText=\"color:#0f0;font-family:Helvetica,Arial,sans-serif;font-size:9px;font-weight:bold;line-height:15px\";k.innerHTML=\"MS\";d.appendChild(k);var e=document.createElement(\"div\");e.id=\"msGraph\";e.style.cssText=\"position:relative;width:74px;height:30px;background-color:#0f0\";for(d.appendChild(e);74>e.children.length;)j=document.createElement(\"span\"),j.style.cssText=\"width:1px;height:30px;float:left;background-color:#131\",e.appendChild(j);var t=function(b){s=b;switch(s){case 0:a.style.display=\n\"block\";d.style.display=\"none\";break;case 1:a.style.display=\"none\",d.style.display=\"block\"}};return{REVISION:12,domElement:f,setMode:t,begin:function(){l=Date.now()},end:function(){var b=Date.now();g=b-l;n=Math.min(n,g);o=Math.max(o,g);k.textContent=g+\" MS (\"+n+\"-\"+o+\")\";var a=Math.min(30,30-30*(g/200));e.appendChild(e.firstChild).style.height=a+\"px\";r++;b>m+1E3&&(h=Math.round(1E3*r/(b-m)),p=Math.min(p,h),q=Math.max(q,h),i.textContent=h+\" FPS (\"+p+\"-\"+q+\")\",a=Math.min(30,30-30*(h/100)),c.appendChild(c.firstChild).style.height=\na+\"px\",m=b,r=0);return b},update:function(){l=this.end()}}};\"object\"===typeof module&&(module.exports=Stats);\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/stats-js/build/stats.min.js\n// module id = 2\n// module chunks = 0","module.exports = require('./vendor/dat.gui')\nmodule.exports.color = require('./vendor/dat.color')\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/dat-gui/index.js\n// module id = 3\n// module chunks = 0","/**\n * dat-gui JavaScript Controller Library\n * http://code.google.com/p/dat-gui\n *\n * Copyright 2011 Data Arts Team, Google Creative Lab\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n */\n\n/** @namespace */\nvar dat = module.exports = dat || {};\n\n/** @namespace */\ndat.gui = dat.gui || {};\n\n/** @namespace */\ndat.utils = dat.utils || {};\n\n/** @namespace */\ndat.controllers = dat.controllers || {};\n\n/** @namespace */\ndat.dom = dat.dom || {};\n\n/** @namespace */\ndat.color = dat.color || {};\n\ndat.utils.css = (function () {\n return {\n load: function (url, doc) {\n doc = doc || document;\n var link = doc.createElement('link');\n link.type = 'text/css';\n link.rel = 'stylesheet';\n link.href = url;\n doc.getElementsByTagName('head')[0].appendChild(link);\n },\n inject: function(css, doc) {\n doc = doc || document;\n var injected = document.createElement('style');\n injected.type = 'text/css';\n injected.innerHTML = css;\n doc.getElementsByTagName('head')[0].appendChild(injected);\n }\n }\n})();\n\n\ndat.utils.common = (function () {\n \n var ARR_EACH = Array.prototype.forEach;\n var ARR_SLICE = Array.prototype.slice;\n\n /**\n * Band-aid methods for things that should be a lot easier in JavaScript.\n * Implementation and structure inspired by underscore.js\n * http://documentcloud.github.com/underscore/\n */\n\n return { \n \n BREAK: {},\n \n extend: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (!this.isUndefined(obj[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n defaults: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (this.isUndefined(target[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n compose: function() {\n var toCall = ARR_SLICE.call(arguments);\n return function() {\n var args = ARR_SLICE.call(arguments);\n for (var i = toCall.length -1; i >= 0; i--) {\n args = [toCall[i].apply(this, args)];\n }\n return args[0];\n }\n },\n \n each: function(obj, itr, scope) {\n\n \n if (ARR_EACH && obj.forEach === ARR_EACH) { \n \n obj.forEach(itr, scope);\n \n } else if (obj.length === obj.length + 0) { // Is number but not NaN\n \n for (var key = 0, l = obj.length; key < l; key++)\n if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) \n return;\n \n } else {\n\n for (var key in obj) \n if (itr.call(scope, obj[key], key) === this.BREAK)\n return;\n \n }\n \n },\n \n defer: function(fnc) {\n setTimeout(fnc, 0);\n },\n \n toArray: function(obj) {\n if (obj.toArray) return obj.toArray();\n return ARR_SLICE.call(obj);\n },\n\n isUndefined: function(obj) {\n return obj === undefined;\n },\n \n isNull: function(obj) {\n return obj === null;\n },\n \n isNaN: function(obj) {\n return obj !== obj;\n },\n \n isArray: Array.isArray || function(obj) {\n return obj.constructor === Array;\n },\n \n isObject: function(obj) {\n return obj === Object(obj);\n },\n \n isNumber: function(obj) {\n return obj === obj+0;\n },\n \n isString: function(obj) {\n return obj === obj+'';\n },\n \n isBoolean: function(obj) {\n return obj === false || obj === true;\n },\n \n isFunction: function(obj) {\n return Object.prototype.toString.call(obj) === '[object Function]';\n }\n \n };\n \n})();\n\n\ndat.controllers.Controller = (function (common) {\n\n /**\n * @class An \"abstract\" class that represents a given property of an object.\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var Controller = function(object, property) {\n\n this.initialValue = object[property];\n\n /**\n * Those who extend this class will put their DOM elements in here.\n * @type {DOMElement}\n */\n this.domElement = document.createElement('div');\n\n /**\n * The object to manipulate\n * @type {Object}\n */\n this.object = object;\n\n /**\n * The name of the property to manipulate\n * @type {String}\n */\n this.property = property;\n\n /**\n * The function to be called on change.\n * @type {Function}\n * @ignore\n */\n this.__onChange = undefined;\n\n /**\n * The function to be called on finishing change.\n * @type {Function}\n * @ignore\n */\n this.__onFinishChange = undefined;\n\n };\n\n common.extend(\n\n Controller.prototype,\n\n /** @lends dat.controllers.Controller.prototype */\n {\n\n /**\n * Specify that a function fire every time someone changes the value with\n * this Controller.\n *\n * @param {Function} fnc This function will be called whenever the value\n * is modified via this Controller.\n * @returns {dat.controllers.Controller} this\n */\n onChange: function(fnc) {\n this.__onChange = fnc;\n return this;\n },\n\n /**\n * Specify that a function fire every time someone \"finishes\" changing\n * the value wih this Controller. Useful for values that change\n * incrementally like numbers or strings.\n *\n * @param {Function} fnc This function will be called whenever\n * someone \"finishes\" changing the value via this Controller.\n * @returns {dat.controllers.Controller} this\n */\n onFinishChange: function(fnc) {\n this.__onFinishChange = fnc;\n return this;\n },\n\n /**\n * Change the value of object[property]\n *\n * @param {Object} newValue The new value of object[property]\n */\n setValue: function(newValue) {\n this.object[this.property] = newValue;\n if (this.__onChange) {\n this.__onChange.call(this, newValue);\n }\n this.updateDisplay();\n return this;\n },\n\n /**\n * Gets the value of object[property]\n *\n * @returns {Object} The current value of object[property]\n */\n getValue: function() {\n return this.object[this.property];\n },\n\n /**\n * Refreshes the visual display of a Controller in order to keep sync\n * with the object's current value.\n * @returns {dat.controllers.Controller} this\n */\n updateDisplay: function() {\n return this;\n },\n\n /**\n * @returns {Boolean} true if the value has deviated from initialValue\n */\n isModified: function() {\n return this.initialValue !== this.getValue()\n }\n\n }\n\n );\n\n return Controller;\n\n\n})(dat.utils.common);\n\n\ndat.dom.dom = (function (common) {\n\n var EVENT_MAP = {\n 'HTMLEvents': ['change'],\n 'MouseEvents': ['click','mousemove','mousedown','mouseup', 'mouseover'],\n 'KeyboardEvents': ['keydown']\n };\n\n var EVENT_MAP_INV = {};\n common.each(EVENT_MAP, function(v, k) {\n common.each(v, function(e) {\n EVENT_MAP_INV[e] = k;\n });\n });\n\n var CSS_VALUE_PIXELS = /(\\d+(\\.\\d+)?)px/;\n\n function cssValueToPixels(val) {\n\n if (val === '0' || common.isUndefined(val)) return 0;\n\n var match = val.match(CSS_VALUE_PIXELS);\n\n if (!common.isNull(match)) {\n return parseFloat(match[1]);\n }\n\n // TODO ...ems? %?\n\n return 0;\n\n }\n\n /**\n * @namespace\n * @member dat.dom\n */\n var dom = {\n\n /**\n * \n * @param elem\n * @param selectable\n */\n makeSelectable: function(elem, selectable) {\n\n if (elem === undefined || elem.style === undefined) return;\n\n elem.onselectstart = selectable ? function() {\n return false;\n } : function() {\n };\n\n elem.style.MozUserSelect = selectable ? 'auto' : 'none';\n elem.style.KhtmlUserSelect = selectable ? 'auto' : 'none';\n elem.unselectable = selectable ? 'on' : 'off';\n\n },\n\n /**\n *\n * @param elem\n * @param horizontal\n * @param vertical\n */\n makeFullscreen: function(elem, horizontal, vertical) {\n\n if (common.isUndefined(horizontal)) horizontal = true;\n if (common.isUndefined(vertical)) vertical = true;\n\n elem.style.position = 'absolute';\n\n if (horizontal) {\n elem.style.left = 0;\n elem.style.right = 0;\n }\n if (vertical) {\n elem.style.top = 0;\n elem.style.bottom = 0;\n }\n\n },\n\n /**\n *\n * @param elem\n * @param eventType\n * @param params\n */\n fakeEvent: function(elem, eventType, params, aux) {\n params = params || {};\n var className = EVENT_MAP_INV[eventType];\n if (!className) {\n throw new Error('Event type ' + eventType + ' not supported.');\n }\n var evt = document.createEvent(className);\n switch (className) {\n case 'MouseEvents':\n var clientX = params.x || params.clientX || 0;\n var clientY = params.y || params.clientY || 0;\n evt.initMouseEvent(eventType, params.bubbles || false,\n params.cancelable || true, window, params.clickCount || 1,\n 0, //screen X\n 0, //screen Y\n clientX, //client X\n clientY, //client Y\n false, false, false, false, 0, null);\n break;\n case 'KeyboardEvents':\n var init = evt.initKeyboardEvent || evt.initKeyEvent; // webkit || moz\n common.defaults(params, {\n cancelable: true,\n ctrlKey: false,\n altKey: false,\n shiftKey: false,\n metaKey: false,\n keyCode: undefined,\n charCode: undefined\n });\n init(eventType, params.bubbles || false,\n params.cancelable, window,\n params.ctrlKey, params.altKey,\n params.shiftKey, params.metaKey,\n params.keyCode, params.charCode);\n break;\n default:\n evt.initEvent(eventType, params.bubbles || false,\n params.cancelable || true);\n break;\n }\n common.defaults(evt, aux);\n elem.dispatchEvent(evt);\n },\n\n /**\n *\n * @param elem\n * @param event\n * @param func\n * @param bool\n */\n bind: function(elem, event, func, bool) {\n bool = bool || false;\n if (elem.addEventListener)\n elem.addEventListener(event, func, bool);\n else if (elem.attachEvent)\n elem.attachEvent('on' + event, func);\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param event\n * @param func\n * @param bool\n */\n unbind: function(elem, event, func, bool) {\n bool = bool || false;\n if (elem.removeEventListener)\n elem.removeEventListener(event, func, bool);\n else if (elem.detachEvent)\n elem.detachEvent('on' + event, func);\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param className\n */\n addClass: function(elem, className) {\n if (elem.className === undefined) {\n elem.className = className;\n } else if (elem.className !== className) {\n var classes = elem.className.split(/ +/);\n if (classes.indexOf(className) == -1) {\n classes.push(className);\n elem.className = classes.join(' ').replace(/^\\s+/, '').replace(/\\s+$/, '');\n }\n }\n return dom;\n },\n\n /**\n *\n * @param elem\n * @param className\n */\n removeClass: function(elem, className) {\n if (className) {\n if (elem.className === undefined) {\n // elem.className = className;\n } else if (elem.className === className) {\n elem.removeAttribute('class');\n } else {\n var classes = elem.className.split(/ +/);\n var index = classes.indexOf(className);\n if (index != -1) {\n classes.splice(index, 1);\n elem.className = classes.join(' ');\n }\n }\n } else {\n elem.className = undefined;\n }\n return dom;\n },\n\n hasClass: function(elem, className) {\n return new RegExp('(?:^|\\\\s+)' + className + '(?:\\\\s+|$)').test(elem.className) || false;\n },\n\n /**\n *\n * @param elem\n */\n getWidth: function(elem) {\n\n var style = getComputedStyle(elem);\n\n return cssValueToPixels(style['border-left-width']) +\n cssValueToPixels(style['border-right-width']) +\n cssValueToPixels(style['padding-left']) +\n cssValueToPixels(style['padding-right']) +\n cssValueToPixels(style['width']);\n },\n\n /**\n *\n * @param elem\n */\n getHeight: function(elem) {\n\n var style = getComputedStyle(elem);\n\n return cssValueToPixels(style['border-top-width']) +\n cssValueToPixels(style['border-bottom-width']) +\n cssValueToPixels(style['padding-top']) +\n cssValueToPixels(style['padding-bottom']) +\n cssValueToPixels(style['height']);\n },\n\n /**\n *\n * @param elem\n */\n getOffset: function(elem) {\n var offset = {left: 0, top:0};\n if (elem.offsetParent) {\n do {\n offset.left += elem.offsetLeft;\n offset.top += elem.offsetTop;\n } while (elem = elem.offsetParent);\n }\n return offset;\n },\n\n // http://stackoverflow.com/posts/2684561/revisions\n /**\n * \n * @param elem\n */\n isActive: function(elem) {\n return elem === document.activeElement && ( elem.type || elem.href );\n }\n\n };\n\n return dom;\n\n})(dat.utils.common);\n\n\ndat.controllers.OptionController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a select input to alter the property of an object, using a\n * list of accepted values.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object|string[]} options A map of labels to acceptable values, or\n * a list of acceptable string values.\n *\n * @member dat.controllers\n */\n var OptionController = function(object, property, options) {\n\n OptionController.superclass.call(this, object, property);\n\n var _this = this;\n\n /**\n * The drop down menu\n * @ignore\n */\n this.__select = document.createElement('select');\n\n if (common.isArray(options)) {\n var map = {};\n common.each(options, function(element) {\n map[element] = element;\n });\n options = map;\n }\n\n common.each(options, function(value, key) {\n\n var opt = document.createElement('option');\n opt.innerHTML = key;\n opt.setAttribute('value', value);\n _this.__select.appendChild(opt);\n\n });\n\n // Acknowledge original value\n this.updateDisplay();\n\n dom.bind(this.__select, 'change', function() {\n var desiredValue = this.options[this.selectedIndex].value;\n _this.setValue(desiredValue);\n });\n\n this.domElement.appendChild(this.__select);\n\n };\n\n OptionController.superclass = Controller;\n\n common.extend(\n\n OptionController.prototype,\n Controller.prototype,\n\n {\n\n setValue: function(v) {\n var toReturn = OptionController.superclass.prototype.setValue.call(this, v);\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n return toReturn;\n },\n\n updateDisplay: function() {\n this.__select.value = this.getValue();\n return OptionController.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n return OptionController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.NumberController = (function (Controller, common) {\n\n /**\n * @class Represents a given property of an object that is a number.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object} [params] Optional parameters\n * @param {Number} [params.min] Minimum allowed value\n * @param {Number} [params.max] Maximum allowed value\n * @param {Number} [params.step] Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberController = function(object, property, params) {\n\n NumberController.superclass.call(this, object, property);\n\n params = params || {};\n\n this.__min = params.min;\n this.__max = params.max;\n this.__step = params.step;\n\n if (common.isUndefined(this.__step)) {\n\n if (this.initialValue == 0) {\n this.__impliedStep = 1; // What are we, psychics?\n } else {\n // Hey Doug, check this out.\n this.__impliedStep = Math.pow(10, Math.floor(Math.log(this.initialValue)/Math.LN10))/10;\n }\n\n } else {\n\n this.__impliedStep = this.__step;\n\n }\n\n this.__precision = numDecimals(this.__impliedStep);\n\n\n };\n\n NumberController.superclass = Controller;\n\n common.extend(\n\n NumberController.prototype,\n Controller.prototype,\n\n /** @lends dat.controllers.NumberController.prototype */\n {\n\n setValue: function(v) {\n\n if (this.__min !== undefined && v < this.__min) {\n v = this.__min;\n } else if (this.__max !== undefined && v > this.__max) {\n v = this.__max;\n }\n\n if (this.__step !== undefined && v % this.__step != 0) {\n v = Math.round(v / this.__step) * this.__step;\n }\n\n return NumberController.superclass.prototype.setValue.call(this, v);\n\n },\n\n /**\n * Specify a minimum value for object[property].\n *\n * @param {Number} minValue The minimum value for\n * object[property]\n * @returns {dat.controllers.NumberController} this\n */\n min: function(v) {\n this.__min = v;\n return this;\n },\n\n /**\n * Specify a maximum value for object[property].\n *\n * @param {Number} maxValue The maximum value for\n * object[property]\n * @returns {dat.controllers.NumberController} this\n */\n max: function(v) {\n this.__max = v;\n return this;\n },\n\n /**\n * Specify a step value that dat.controllers.NumberController\n * increments by.\n *\n * @param {Number} stepValue The step value for\n * dat.controllers.NumberController\n * @default if minimum and maximum specified increment is 1% of the\n * difference otherwise stepValue is 1\n * @returns {dat.controllers.NumberController} this\n */\n step: function(v) {\n this.__step = v;\n return this;\n }\n\n }\n\n );\n\n function numDecimals(x) {\n x = x.toString();\n if (x.indexOf('.') > -1) {\n return x.length - x.indexOf('.') - 1;\n } else {\n return 0;\n }\n }\n\n return NumberController;\n\n})(dat.controllers.Controller,\ndat.utils.common);\n\n\ndat.controllers.NumberControllerBox = (function (NumberController, dom, common) {\n\n /**\n * @class Represents a given property of an object that is a number and\n * provides an input element with which to manipulate it.\n *\n * @extends dat.controllers.Controller\n * @extends dat.controllers.NumberController\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Object} [params] Optional parameters\n * @param {Number} [params.min] Minimum allowed value\n * @param {Number} [params.max] Maximum allowed value\n * @param {Number} [params.step] Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberControllerBox = function(object, property, params) {\n\n this.__truncationSuspended = false;\n\n NumberControllerBox.superclass.call(this, object, property, params);\n\n var _this = this;\n\n /**\n * {Number} Previous mouse y position\n * @ignore\n */\n var prev_y;\n\n this.__input = document.createElement('input');\n this.__input.setAttribute('type', 'text');\n\n // Makes it so manually specified values are not truncated.\n\n dom.bind(this.__input, 'change', onChange);\n dom.bind(this.__input, 'blur', onBlur);\n dom.bind(this.__input, 'mousedown', onMouseDown);\n dom.bind(this.__input, 'keydown', function(e) {\n\n // When pressing entire, you can be as precise as you want.\n if (e.keyCode === 13) {\n _this.__truncationSuspended = true;\n this.blur();\n _this.__truncationSuspended = false;\n }\n\n });\n\n function onChange() {\n var attempted = parseFloat(_this.__input.value);\n if (!common.isNaN(attempted)) _this.setValue(attempted);\n }\n\n function onBlur() {\n onChange();\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n function onMouseDown(e) {\n dom.bind(window, 'mousemove', onMouseDrag);\n dom.bind(window, 'mouseup', onMouseUp);\n prev_y = e.clientY;\n }\n\n function onMouseDrag(e) {\n\n var diff = prev_y - e.clientY;\n _this.setValue(_this.getValue() + diff * _this.__impliedStep);\n\n prev_y = e.clientY;\n\n }\n\n function onMouseUp() {\n dom.unbind(window, 'mousemove', onMouseDrag);\n dom.unbind(window, 'mouseup', onMouseUp);\n }\n\n this.updateDisplay();\n\n this.domElement.appendChild(this.__input);\n\n };\n\n NumberControllerBox.superclass = NumberController;\n\n common.extend(\n\n NumberControllerBox.prototype,\n NumberController.prototype,\n\n {\n\n updateDisplay: function() {\n\n this.__input.value = this.__truncationSuspended ? this.getValue() : roundToDecimal(this.getValue(), this.__precision);\n return NumberControllerBox.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n function roundToDecimal(value, decimals) {\n var tenTo = Math.pow(10, decimals);\n return Math.round(value * tenTo) / tenTo;\n }\n\n return NumberControllerBox;\n\n})(dat.controllers.NumberController,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.NumberControllerSlider = (function (NumberController, dom, css, common, styleSheet) {\n\n /**\n * @class Represents a given property of an object that is a number, contains\n * a minimum and maximum, and provides a slider element with which to\n * manipulate it. It should be noted that the slider element is made up of\n * <div> tags, not the html5\n * <slider> element.\n *\n * @extends dat.controllers.Controller\n * @extends dat.controllers.NumberController\n * \n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n * @param {Number} minValue Minimum allowed value\n * @param {Number} maxValue Maximum allowed value\n * @param {Number} stepValue Increment by which to change value\n *\n * @member dat.controllers\n */\n var NumberControllerSlider = function(object, property, min, max, step) {\n\n NumberControllerSlider.superclass.call(this, object, property, { min: min, max: max, step: step });\n\n var _this = this;\n\n this.__background = document.createElement('div');\n this.__foreground = document.createElement('div');\n \n\n\n dom.bind(this.__background, 'mousedown', onMouseDown);\n \n dom.addClass(this.__background, 'slider');\n dom.addClass(this.__foreground, 'slider-fg');\n\n function onMouseDown(e) {\n\n dom.bind(window, 'mousemove', onMouseDrag);\n dom.bind(window, 'mouseup', onMouseUp);\n\n onMouseDrag(e);\n }\n\n function onMouseDrag(e) {\n\n e.preventDefault();\n\n var offset = dom.getOffset(_this.__background);\n var width = dom.getWidth(_this.__background);\n \n _this.setValue(\n map(e.clientX, offset.left, offset.left + width, _this.__min, _this.__max)\n );\n\n return false;\n\n }\n\n function onMouseUp() {\n dom.unbind(window, 'mousemove', onMouseDrag);\n dom.unbind(window, 'mouseup', onMouseUp);\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n this.updateDisplay();\n\n this.__background.appendChild(this.__foreground);\n this.domElement.appendChild(this.__background);\n\n };\n\n NumberControllerSlider.superclass = NumberController;\n\n /**\n * Injects default stylesheet for slider elements.\n */\n NumberControllerSlider.useDefaultStyles = function() {\n css.inject(styleSheet);\n };\n\n common.extend(\n\n NumberControllerSlider.prototype,\n NumberController.prototype,\n\n {\n\n updateDisplay: function() {\n var pct = (this.getValue() - this.__min)/(this.__max - this.__min);\n this.__foreground.style.width = pct*100+'%';\n return NumberControllerSlider.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n\n\n );\n\n function map(v, i1, i2, o1, o2) {\n return o1 + (o2 - o1) * ((v - i1) / (i2 - i1));\n }\n\n return NumberControllerSlider;\n \n})(dat.controllers.NumberController,\ndat.dom.dom,\ndat.utils.css,\ndat.utils.common,\n\".slider {\\n box-shadow: inset 0 2px 4px rgba(0,0,0,0.15);\\n height: 1em;\\n border-radius: 1em;\\n background-color: #eee;\\n padding: 0 0.5em;\\n overflow: hidden;\\n}\\n\\n.slider-fg {\\n padding: 1px 0 2px 0;\\n background-color: #aaa;\\n height: 1em;\\n margin-left: -0.5em;\\n padding-right: 0.5em;\\n border-radius: 1em 0 0 1em;\\n}\\n\\n.slider-fg:after {\\n display: inline-block;\\n border-radius: 1em;\\n background-color: #fff;\\n border: 1px solid #aaa;\\n content: '';\\n float: right;\\n margin-right: -1em;\\n margin-top: -1px;\\n height: 0.9em;\\n width: 0.9em;\\n}\");\n\n\ndat.controllers.FunctionController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a GUI interface to fire a specified method, a property of an object.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var FunctionController = function(object, property, text) {\n\n FunctionController.superclass.call(this, object, property);\n\n var _this = this;\n\n this.__button = document.createElement('div');\n this.__button.innerHTML = text === undefined ? 'Fire' : text;\n dom.bind(this.__button, 'click', function(e) {\n e.preventDefault();\n _this.fire();\n return false;\n });\n\n dom.addClass(this.__button, 'button');\n\n this.domElement.appendChild(this.__button);\n\n\n };\n\n FunctionController.superclass = Controller;\n\n common.extend(\n\n FunctionController.prototype,\n Controller.prototype,\n {\n \n fire: function() {\n if (this.__onChange) {\n this.__onChange.call(this);\n }\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n this.getValue().call(this.object);\n }\n }\n\n );\n\n return FunctionController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.controllers.BooleanController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a checkbox input to alter the boolean property of an object.\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var BooleanController = function(object, property) {\n\n BooleanController.superclass.call(this, object, property);\n\n var _this = this;\n this.__prev = this.getValue();\n\n this.__checkbox = document.createElement('input');\n this.__checkbox.setAttribute('type', 'checkbox');\n\n\n dom.bind(this.__checkbox, 'change', onChange, false);\n\n this.domElement.appendChild(this.__checkbox);\n\n // Match original value\n this.updateDisplay();\n\n function onChange() {\n _this.setValue(!_this.__prev);\n }\n\n };\n\n BooleanController.superclass = Controller;\n\n common.extend(\n\n BooleanController.prototype,\n Controller.prototype,\n\n {\n\n setValue: function(v) {\n var toReturn = BooleanController.superclass.prototype.setValue.call(this, v);\n if (this.__onFinishChange) {\n this.__onFinishChange.call(this, this.getValue());\n }\n this.__prev = this.getValue();\n return toReturn;\n },\n\n updateDisplay: function() {\n \n if (this.getValue() === true) {\n this.__checkbox.setAttribute('checked', 'checked');\n this.__checkbox.checked = true; \n } else {\n this.__checkbox.checked = false;\n }\n\n return BooleanController.superclass.prototype.updateDisplay.call(this);\n\n }\n\n\n }\n\n );\n\n return BooleanController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common);\n\n\ndat.color.toString = (function (common) {\n\n return function(color) {\n\n if (color.a == 1 || common.isUndefined(color.a)) {\n\n var s = color.hex.toString(16);\n while (s.length < 6) {\n s = '0' + s;\n }\n\n return '#' + s;\n\n } else {\n\n return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')';\n\n }\n\n }\n\n})(dat.utils.common);\n\n\ndat.color.interpret = (function (toString, common) {\n\n var result, toReturn;\n\n var interpret = function() {\n\n toReturn = false;\n\n var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0];\n\n common.each(INTERPRETATIONS, function(family) {\n\n if (family.litmus(original)) {\n\n common.each(family.conversions, function(conversion, conversionName) {\n\n result = conversion.read(original);\n\n if (toReturn === false && result !== false) {\n toReturn = result;\n result.conversionName = conversionName;\n result.conversion = conversion;\n return common.BREAK;\n\n }\n\n });\n\n return common.BREAK;\n\n }\n\n });\n\n return toReturn;\n\n };\n\n var INTERPRETATIONS = [\n\n // Strings\n {\n\n litmus: common.isString,\n\n conversions: {\n\n THREE_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt(\n '0x' +\n test[1].toString() + test[1].toString() +\n test[2].toString() + test[2].toString() +\n test[3].toString() + test[3].toString())\n };\n\n },\n\n write: toString\n\n },\n\n SIX_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9]{6})$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt('0x' + test[1].toString())\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGB: {\n\n read: function(original) {\n\n var test = original.match(/^rgb\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3])\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGBA: {\n\n read: function(original) {\n\n var test = original.match(/^rgba\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3]),\n a: parseFloat(test[4])\n };\n\n },\n\n write: toString\n\n }\n\n }\n\n },\n\n // Numbers\n {\n\n litmus: common.isNumber,\n\n conversions: {\n\n HEX: {\n read: function(original) {\n return {\n space: 'HEX',\n hex: original,\n conversionName: 'HEX'\n }\n },\n\n write: function(color) {\n return color.hex;\n }\n }\n\n }\n\n },\n\n // Arrays\n {\n\n litmus: common.isArray,\n\n conversions: {\n\n RGB_ARRAY: {\n read: function(original) {\n if (original.length != 3) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b];\n }\n\n },\n\n RGBA_ARRAY: {\n read: function(original) {\n if (original.length != 4) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2],\n a: original[3]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b, color.a];\n }\n\n }\n\n }\n\n },\n\n // Objects\n {\n\n litmus: common.isObject,\n\n conversions: {\n\n RGBA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b) &&\n common.isNumber(original.a)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b,\n a: color.a\n }\n }\n },\n\n RGB_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b\n }\n }\n },\n\n HSVA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v) &&\n common.isNumber(original.a)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v,\n a: color.a\n }\n }\n },\n\n HSV_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v\n }\n }\n\n }\n\n }\n\n }\n\n\n ];\n\n return interpret;\n\n\n})(dat.color.toString,\ndat.utils.common);\n\n\ndat.GUI = dat.gui.GUI = (function (css, saveDialogueContents, styleSheet, controllerFactory, Controller, BooleanController, FunctionController, NumberControllerBox, NumberControllerSlider, OptionController, ColorController, requestAnimationFrame, CenteredDiv, dom, common) {\n\n css.inject(styleSheet);\n\n /** Outer-most className for GUI's */\n var CSS_NAMESPACE = 'dg';\n\n var HIDE_KEY_CODE = 72;\n\n /** The only value shared between the JS and SCSS. Use caution. */\n var CLOSE_BUTTON_HEIGHT = 20;\n\n var DEFAULT_DEFAULT_PRESET_NAME = 'Default';\n\n var SUPPORTS_LOCAL_STORAGE = (function() {\n try {\n return 'localStorage' in window && window['localStorage'] !== null;\n } catch (e) {\n return false;\n }\n })();\n\n var SAVE_DIALOGUE;\n\n /** Have we yet to create an autoPlace GUI? */\n var auto_place_virgin = true;\n\n /** Fixed position div that auto place GUI's go inside */\n var auto_place_container;\n\n /** Are we hiding the GUI's ? */\n var hide = false;\n\n /** GUI's which should be hidden */\n var hideable_guis = [];\n\n /**\n * A lightweight controller library for JavaScript. It allows you to easily\n * manipulate variables and fire functions on the fly.\n * @class\n *\n * @member dat.gui\n *\n * @param {Object} [params]\n * @param {String} [params.name] The name of this GUI.\n * @param {Object} [params.load] JSON object representing the saved state of\n * this GUI.\n * @param {Boolean} [params.auto=true]\n * @param {dat.gui.GUI} [params.parent] The GUI I'm nested in.\n * @param {Boolean} [params.closed] If true, starts closed\n */\n var GUI = function(params) {\n\n var _this = this;\n\n /**\n * Outermost DOM Element\n * @type DOMElement\n */\n this.domElement = document.createElement('div');\n this.__ul = document.createElement('ul');\n this.domElement.appendChild(this.__ul);\n\n dom.addClass(this.domElement, CSS_NAMESPACE);\n\n /**\n * Nested GUI's by name\n * @ignore\n */\n this.__folders = {};\n\n this.__controllers = [];\n\n /**\n * List of objects I'm remembering for save, only used in top level GUI\n * @ignore\n */\n this.__rememberedObjects = [];\n\n /**\n * Maps the index of remembered objects to a map of controllers, only used\n * in top level GUI.\n *\n * @private\n * @ignore\n *\n * @example\n * [\n * {\n * propertyName: Controller,\n * anotherPropertyName: Controller\n * },\n * {\n * propertyName: Controller\n * }\n * ]\n */\n this.__rememberedObjectIndecesToControllers = [];\n\n this.__listening = [];\n\n params = params || {};\n\n // Default parameters\n params = common.defaults(params, {\n autoPlace: true,\n width: GUI.DEFAULT_WIDTH\n });\n\n params = common.defaults(params, {\n resizable: params.autoPlace,\n hideable: params.autoPlace\n });\n\n\n if (!common.isUndefined(params.load)) {\n\n // Explicit preset\n if (params.preset) params.load.preset = params.preset;\n\n } else {\n\n params.load = { preset: DEFAULT_DEFAULT_PRESET_NAME };\n\n }\n\n if (common.isUndefined(params.parent) && params.hideable) {\n hideable_guis.push(this);\n }\n\n // Only root level GUI's are resizable.\n params.resizable = common.isUndefined(params.parent) && params.resizable;\n\n\n if (params.autoPlace && common.isUndefined(params.scrollable)) {\n params.scrollable = true;\n }\n// params.scrollable = common.isUndefined(params.parent) && params.scrollable === true;\n\n // Not part of params because I don't want people passing this in via\n // constructor. Should be a 'remembered' value.\n var use_local_storage =\n SUPPORTS_LOCAL_STORAGE &&\n localStorage.getItem(getLocalStorageHash(this, 'isLocal')) === 'true';\n\n Object.defineProperties(this,\n\n /** @lends dat.gui.GUI.prototype */\n {\n\n /**\n * The parent GUI\n * @type dat.gui.GUI\n */\n parent: {\n get: function() {\n return params.parent;\n }\n },\n\n scrollable: {\n get: function() {\n return params.scrollable;\n }\n },\n\n /**\n * Handles GUI's element placement for you\n * @type Boolean\n */\n autoPlace: {\n get: function() {\n return params.autoPlace;\n }\n },\n\n /**\n * The identifier for a set of saved values\n * @type String\n */\n preset: {\n\n get: function() {\n if (_this.parent) {\n return _this.getRoot().preset;\n } else {\n return params.load.preset;\n }\n },\n\n set: function(v) {\n if (_this.parent) {\n _this.getRoot().preset = v;\n } else {\n params.load.preset = v;\n }\n setPresetSelectIndex(this);\n _this.revert();\n }\n\n },\n\n /**\n * The width of GUI element\n * @type Number\n */\n width: {\n get: function() {\n return params.width;\n },\n set: function(v) {\n params.width = v;\n setWidth(_this, v);\n }\n },\n\n /**\n * The name of GUI. Used for folders. i.e\n * a folder's name\n * @type String\n */\n name: {\n get: function() {\n return params.name;\n },\n set: function(v) {\n // TODO Check for collisions among sibling folders\n params.name = v;\n if (title_row_name) {\n title_row_name.innerHTML = params.name;\n }\n }\n },\n\n /**\n * Whether the GUI is collapsed or not\n * @type Boolean\n */\n closed: {\n get: function() {\n return params.closed;\n },\n set: function(v) {\n params.closed = v;\n if (params.closed) {\n dom.addClass(_this.__ul, GUI.CLASS_CLOSED);\n } else {\n dom.removeClass(_this.__ul, GUI.CLASS_CLOSED);\n }\n // For browsers that aren't going to respect the CSS transition,\n // Lets just check our height against the window height right off\n // the bat.\n this.onResize();\n\n if (_this.__closeButton) {\n _this.__closeButton.innerHTML = v ? GUI.TEXT_OPEN : GUI.TEXT_CLOSED;\n }\n }\n },\n\n /**\n * Contains all presets\n * @type Object\n */\n load: {\n get: function() {\n return params.load;\n }\n },\n\n /**\n * Determines whether or not to use localStorage as the means for\n * remembering\n * @type Boolean\n */\n useLocalStorage: {\n\n get: function() {\n return use_local_storage;\n },\n set: function(bool) {\n if (SUPPORTS_LOCAL_STORAGE) {\n use_local_storage = bool;\n if (bool) {\n dom.bind(window, 'unload', saveToLocalStorage);\n } else {\n dom.unbind(window, 'unload', saveToLocalStorage);\n }\n localStorage.setItem(getLocalStorageHash(_this, 'isLocal'), bool);\n }\n }\n\n }\n\n });\n\n // Are we a root level GUI?\n if (common.isUndefined(params.parent)) {\n\n params.closed = false;\n\n dom.addClass(this.domElement, GUI.CLASS_MAIN);\n dom.makeSelectable(this.domElement, false);\n\n // Are we supposed to be loading locally?\n if (SUPPORTS_LOCAL_STORAGE) {\n\n if (use_local_storage) {\n\n _this.useLocalStorage = true;\n\n var saved_gui = localStorage.getItem(getLocalStorageHash(this, 'gui'));\n\n if (saved_gui) {\n params.load = JSON.parse(saved_gui);\n }\n\n }\n\n }\n\n this.__closeButton = document.createElement('div');\n this.__closeButton.innerHTML = GUI.TEXT_CLOSED;\n dom.addClass(this.__closeButton, GUI.CLASS_CLOSE_BUTTON);\n this.domElement.appendChild(this.__closeButton);\n\n dom.bind(this.__closeButton, 'click', function() {\n\n _this.closed = !_this.closed;\n\n\n });\n\n\n // Oh, you're a nested GUI!\n } else {\n\n if (params.closed === undefined) {\n params.closed = true;\n }\n\n var title_row_name = document.createTextNode(params.name);\n dom.addClass(title_row_name, 'controller-name');\n\n var title_row = addRow(_this, title_row_name);\n\n var on_click_title = function(e) {\n e.preventDefault();\n _this.closed = !_this.closed;\n return false;\n };\n\n dom.addClass(this.__ul, GUI.CLASS_CLOSED);\n\n dom.addClass(title_row, 'title');\n dom.bind(title_row, 'click', on_click_title);\n\n if (!params.closed) {\n this.closed = false;\n }\n\n }\n\n if (params.autoPlace) {\n\n if (common.isUndefined(params.parent)) {\n\n if (auto_place_virgin) {\n auto_place_container = document.createElement('div');\n dom.addClass(auto_place_container, CSS_NAMESPACE);\n dom.addClass(auto_place_container, GUI.CLASS_AUTO_PLACE_CONTAINER);\n document.body.appendChild(auto_place_container);\n auto_place_virgin = false;\n }\n\n // Put it in the dom for you.\n auto_place_container.appendChild(this.domElement);\n\n // Apply the auto styles\n dom.addClass(this.domElement, GUI.CLASS_AUTO_PLACE);\n\n }\n\n\n // Make it not elastic.\n if (!this.parent) setWidth(_this, params.width);\n\n }\n\n dom.bind(window, 'resize', function() { _this.onResize() });\n dom.bind(this.__ul, 'webkitTransitionEnd', function() { _this.onResize(); });\n dom.bind(this.__ul, 'transitionend', function() { _this.onResize() });\n dom.bind(this.__ul, 'oTransitionEnd', function() { _this.onResize() });\n this.onResize();\n\n\n if (params.resizable) {\n addResizeHandle(this);\n }\n\n function saveToLocalStorage() {\n localStorage.setItem(getLocalStorageHash(_this, 'gui'), JSON.stringify(_this.getSaveObject()));\n }\n\n var root = _this.getRoot();\n function resetWidth() {\n var root = _this.getRoot();\n root.width += 1;\n common.defer(function() {\n root.width -= 1;\n });\n }\n\n if (!params.parent) {\n resetWidth();\n }\n\n };\n\n GUI.toggleHide = function() {\n\n hide = !hide;\n common.each(hideable_guis, function(gui) {\n gui.domElement.style.zIndex = hide ? -999 : 999;\n gui.domElement.style.opacity = hide ? 0 : 1;\n });\n };\n\n GUI.CLASS_AUTO_PLACE = 'a';\n GUI.CLASS_AUTO_PLACE_CONTAINER = 'ac';\n GUI.CLASS_MAIN = 'main';\n GUI.CLASS_CONTROLLER_ROW = 'cr';\n GUI.CLASS_TOO_TALL = 'taller-than-window';\n GUI.CLASS_CLOSED = 'closed';\n GUI.CLASS_CLOSE_BUTTON = 'close-button';\n GUI.CLASS_DRAG = 'drag';\n\n GUI.DEFAULT_WIDTH = 245;\n GUI.TEXT_CLOSED = 'Close Controls';\n GUI.TEXT_OPEN = 'Open Controls';\n\n dom.bind(window, 'keydown', function(e) {\n\n if (document.activeElement.type !== 'text' &&\n (e.which === HIDE_KEY_CODE || e.keyCode == HIDE_KEY_CODE)) {\n GUI.toggleHide();\n }\n\n }, false);\n\n common.extend(\n\n GUI.prototype,\n\n /** @lends dat.gui.GUI */\n {\n\n /**\n * @param object\n * @param property\n * @returns {dat.controllers.Controller} The new controller that was added.\n * @instance\n */\n add: function(object, property) {\n\n return add(\n this,\n object,\n property,\n {\n factoryArgs: Array.prototype.slice.call(arguments, 2)\n }\n );\n\n },\n\n /**\n * @param object\n * @param property\n * @returns {dat.controllers.ColorController} The new controller that was added.\n * @instance\n */\n addColor: function(object, property) {\n\n return add(\n this,\n object,\n property,\n {\n color: true\n }\n );\n\n },\n\n /**\n * @param controller\n * @instance\n */\n remove: function(controller) {\n\n // TODO listening?\n this.__ul.removeChild(controller.__li);\n this.__controllers.slice(this.__controllers.indexOf(controller), 1);\n var _this = this;\n common.defer(function() {\n _this.onResize();\n });\n\n },\n\n destroy: function() {\n\n if (this.autoPlace) {\n auto_place_container.removeChild(this.domElement);\n }\n\n },\n\n /**\n * @param name\n * @returns {dat.gui.GUI} The new folder.\n * @throws {Error} if this GUI already has a folder by the specified\n * name\n * @instance\n */\n addFolder: function(name) {\n\n // We have to prevent collisions on names in order to have a key\n // by which to remember saved values\n if (this.__folders[name] !== undefined) {\n throw new Error('You already have a folder in this GUI by the' +\n ' name \"' + name + '\"');\n }\n\n var new_gui_params = { name: name, parent: this };\n\n // We need to pass down the autoPlace trait so that we can\n // attach event listeners to open/close folder actions to\n // ensure that a scrollbar appears if the window is too short.\n new_gui_params.autoPlace = this.autoPlace;\n\n // Do we have saved appearance data for this folder?\n\n if (this.load && // Anything loaded?\n this.load.folders && // Was my parent a dead-end?\n this.load.folders[name]) { // Did daddy remember me?\n\n // Start me closed if I was closed\n new_gui_params.closed = this.load.folders[name].closed;\n\n // Pass down the loaded data\n new_gui_params.load = this.load.folders[name];\n\n }\n\n var gui = new GUI(new_gui_params);\n this.__folders[name] = gui;\n\n var li = addRow(this, gui.domElement);\n dom.addClass(li, 'folder');\n return gui;\n\n },\n\n open: function() {\n this.closed = false;\n },\n\n close: function() {\n this.closed = true;\n },\n\n onResize: function() {\n\n var root = this.getRoot();\n\n if (root.scrollable) {\n\n var top = dom.getOffset(root.__ul).top;\n var h = 0;\n\n common.each(root.__ul.childNodes, function(node) {\n if (! (root.autoPlace && node === root.__save_row))\n h += dom.getHeight(node);\n });\n\n if (window.innerHeight - top - CLOSE_BUTTON_HEIGHT < h) {\n dom.addClass(root.domElement, GUI.CLASS_TOO_TALL);\n root.__ul.style.height = window.innerHeight - top - CLOSE_BUTTON_HEIGHT + 'px';\n } else {\n dom.removeClass(root.domElement, GUI.CLASS_TOO_TALL);\n root.__ul.style.height = 'auto';\n }\n\n }\n\n if (root.__resize_handle) {\n common.defer(function() {\n root.__resize_handle.style.height = root.__ul.offsetHeight + 'px';\n });\n }\n\n if (root.__closeButton) {\n root.__closeButton.style.width = root.width + 'px';\n }\n\n },\n\n /**\n * Mark objects for saving. The order of these objects cannot change as\n * the GUI grows. When remembering new objects, append them to the end\n * of the list.\n *\n * @param {Object...} objects\n * @throws {Error} if not called on a top level GUI.\n * @instance\n */\n remember: function() {\n\n if (common.isUndefined(SAVE_DIALOGUE)) {\n SAVE_DIALOGUE = new CenteredDiv();\n SAVE_DIALOGUE.domElement.innerHTML = saveDialogueContents;\n }\n\n if (this.parent) {\n throw new Error(\"You can only call remember on a top level GUI.\");\n }\n\n var _this = this;\n\n common.each(Array.prototype.slice.call(arguments), function(object) {\n if (_this.__rememberedObjects.length == 0) {\n addSaveMenu(_this);\n }\n if (_this.__rememberedObjects.indexOf(object) == -1) {\n _this.__rememberedObjects.push(object);\n }\n });\n\n if (this.autoPlace) {\n // Set save row width\n setWidth(this, this.width);\n }\n\n },\n\n /**\n * @returns {dat.gui.GUI} the topmost parent GUI of a nested GUI.\n * @instance\n */\n getRoot: function() {\n var gui = this;\n while (gui.parent) {\n gui = gui.parent;\n }\n return gui;\n },\n\n /**\n * @returns {Object} a JSON object representing the current state of\n * this GUI as well as its remembered properties.\n * @instance\n */\n getSaveObject: function() {\n\n var toReturn = this.load;\n\n toReturn.closed = this.closed;\n\n // Am I remembering any values?\n if (this.__rememberedObjects.length > 0) {\n\n toReturn.preset = this.preset;\n\n if (!toReturn.remembered) {\n toReturn.remembered = {};\n }\n\n toReturn.remembered[this.preset] = getCurrentPreset(this);\n\n }\n\n toReturn.folders = {};\n common.each(this.__folders, function(element, key) {\n toReturn.folders[key] = element.getSaveObject();\n });\n\n return toReturn;\n\n },\n\n save: function() {\n\n if (!this.load.remembered) {\n this.load.remembered = {};\n }\n\n this.load.remembered[this.preset] = getCurrentPreset(this);\n markPresetModified(this, false);\n\n },\n\n saveAs: function(presetName) {\n\n if (!this.load.remembered) {\n\n // Retain default values upon first save\n this.load.remembered = {};\n this.load.remembered[DEFAULT_DEFAULT_PRESET_NAME] = getCurrentPreset(this, true);\n\n }\n\n this.load.remembered[presetName] = getCurrentPreset(this);\n this.preset = presetName;\n addPresetOption(this, presetName, true);\n\n },\n\n revert: function(gui) {\n\n common.each(this.__controllers, function(controller) {\n // Make revert work on Default.\n if (!this.getRoot().load.remembered) {\n controller.setValue(controller.initialValue);\n } else {\n recallSavedValue(gui || this.getRoot(), controller);\n }\n }, this);\n\n common.each(this.__folders, function(folder) {\n folder.revert(folder);\n });\n\n if (!gui) {\n markPresetModified(this.getRoot(), false);\n }\n\n\n },\n\n listen: function(controller) {\n\n var init = this.__listening.length == 0;\n this.__listening.push(controller);\n if (init) updateDisplays(this.__listening);\n\n }\n\n }\n\n );\n\n function add(gui, object, property, params) {\n\n if (object[property] === undefined) {\n throw new Error(\"Object \" + object + \" has no property \\\"\" + property + \"\\\"\");\n }\n\n var controller;\n\n if (params.color) {\n\n controller = new ColorController(object, property);\n\n } else {\n\n var factoryArgs = [object,property].concat(params.factoryArgs);\n controller = controllerFactory.apply(gui, factoryArgs);\n\n }\n\n if (params.before instanceof Controller) {\n params.before = params.before.__li;\n }\n\n recallSavedValue(gui, controller);\n\n dom.addClass(controller.domElement, 'c');\n\n var name = document.createElement('span');\n dom.addClass(name, 'property-name');\n name.innerHTML = controller.property;\n\n var container = document.createElement('div');\n container.appendChild(name);\n container.appendChild(controller.domElement);\n\n var li = addRow(gui, container, params.before);\n\n dom.addClass(li, GUI.CLASS_CONTROLLER_ROW);\n dom.addClass(li, typeof controller.getValue());\n\n augmentController(gui, li, controller);\n\n gui.__controllers.push(controller);\n\n return controller;\n\n }\n\n /**\n * Add a row to the end of the GUI or before another row.\n *\n * @param gui\n * @param [dom] If specified, inserts the dom content in the new row\n * @param [liBefore] If specified, places the new row before another row\n */\n function addRow(gui, dom, liBefore) {\n var li = document.createElement('li');\n if (dom) li.appendChild(dom);\n if (liBefore) {\n gui.__ul.insertBefore(li, params.before);\n } else {\n gui.__ul.appendChild(li);\n }\n gui.onResize();\n return li;\n }\n\n function augmentController(gui, li, controller) {\n\n controller.__li = li;\n controller.__gui = gui;\n\n common.extend(controller, {\n\n options: function(options) {\n\n if (arguments.length > 1) {\n controller.remove();\n\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [common.toArray(arguments)]\n }\n );\n\n }\n\n if (common.isArray(options) || common.isObject(options)) {\n controller.remove();\n\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [options]\n }\n );\n\n }\n\n },\n\n name: function(v) {\n controller.__li.firstElementChild.firstElementChild.innerHTML = v;\n return controller;\n },\n\n listen: function() {\n controller.__gui.listen(controller);\n return controller;\n },\n\n remove: function() {\n controller.__gui.remove(controller);\n return controller;\n }\n\n });\n\n // All sliders should be accompanied by a box.\n if (controller instanceof NumberControllerSlider) {\n\n var box = new NumberControllerBox(controller.object, controller.property,\n { min: controller.__min, max: controller.__max, step: controller.__step });\n\n common.each(['updateDisplay', 'onChange', 'onFinishChange'], function(method) {\n var pc = controller[method];\n var pb = box[method];\n controller[method] = box[method] = function() {\n var args = Array.prototype.slice.call(arguments);\n pc.apply(controller, args);\n return pb.apply(box, args);\n }\n });\n\n dom.addClass(li, 'has-slider');\n controller.domElement.insertBefore(box.domElement, controller.domElement.firstElementChild);\n\n }\n else if (controller instanceof NumberControllerBox) {\n\n var r = function(returned) {\n\n // Have we defined both boundaries?\n if (common.isNumber(controller.__min) && common.isNumber(controller.__max)) {\n\n // Well, then lets just replace this with a slider.\n controller.remove();\n return add(\n gui,\n controller.object,\n controller.property,\n {\n before: controller.__li.nextElementSibling,\n factoryArgs: [controller.__min, controller.__max, controller.__step]\n });\n\n }\n\n return returned;\n\n };\n\n controller.min = common.compose(r, controller.min);\n controller.max = common.compose(r, controller.max);\n\n }\n else if (controller instanceof BooleanController) {\n\n dom.bind(li, 'click', function() {\n dom.fakeEvent(controller.__checkbox, 'click');\n });\n\n dom.bind(controller.__checkbox, 'click', function(e) {\n e.stopPropagation(); // Prevents double-toggle\n })\n\n }\n else if (controller instanceof FunctionController) {\n\n dom.bind(li, 'click', function() {\n dom.fakeEvent(controller.__button, 'click');\n });\n\n dom.bind(li, 'mouseover', function() {\n dom.addClass(controller.__button, 'hover');\n });\n\n dom.bind(li, 'mouseout', function() {\n dom.removeClass(controller.__button, 'hover');\n });\n\n }\n else if (controller instanceof ColorController) {\n\n dom.addClass(li, 'color');\n controller.updateDisplay = common.compose(function(r) {\n li.style.borderLeftColor = controller.__color.toString();\n return r;\n }, controller.updateDisplay);\n\n controller.updateDisplay();\n\n }\n\n controller.setValue = common.compose(function(r) {\n if (gui.getRoot().__preset_select && controller.isModified()) {\n markPresetModified(gui.getRoot(), true);\n }\n return r;\n }, controller.setValue);\n\n }\n\n function recallSavedValue(gui, controller) {\n\n // Find the topmost GUI, that's where remembered objects live.\n var root = gui.getRoot();\n\n // Does the object we're controlling match anything we've been told to\n // remember?\n var matched_index = root.__rememberedObjects.indexOf(controller.object);\n\n // Why yes, it does!\n if (matched_index != -1) {\n\n // Let me fetch a map of controllers for thcommon.isObject.\n var controller_map =\n root.__rememberedObjectIndecesToControllers[matched_index];\n\n // Ohp, I believe this is the first controller we've created for this\n // object. Lets make the map fresh.\n if (controller_map === undefined) {\n controller_map = {};\n root.__rememberedObjectIndecesToControllers[matched_index] =\n controller_map;\n }\n\n // Keep track of this controller\n controller_map[controller.property] = controller;\n\n // Okay, now have we saved any values for this controller?\n if (root.load && root.load.remembered) {\n\n var preset_map = root.load.remembered;\n\n // Which preset are we trying to load?\n var preset;\n\n if (preset_map[gui.preset]) {\n\n preset = preset_map[gui.preset];\n\n } else if (preset_map[DEFAULT_DEFAULT_PRESET_NAME]) {\n\n // Uhh, you can have the default instead?\n preset = preset_map[DEFAULT_DEFAULT_PRESET_NAME];\n\n } else {\n\n // Nada.\n\n return;\n\n }\n\n\n // Did the loaded object remember thcommon.isObject?\n if (preset[matched_index] &&\n\n // Did we remember this particular property?\n preset[matched_index][controller.property] !== undefined) {\n\n // We did remember something for this guy ...\n var value = preset[matched_index][controller.property];\n\n // And that's what it is.\n controller.initialValue = value;\n controller.setValue(value);\n\n }\n\n }\n\n }\n\n }\n\n function getLocalStorageHash(gui, key) {\n // TODO how does this deal with multiple GUI's?\n return document.location.href + '.' + key;\n\n }\n\n function addSaveMenu(gui) {\n\n var div = gui.__save_row = document.createElement('li');\n\n dom.addClass(gui.domElement, 'has-save');\n\n gui.__ul.insertBefore(div, gui.__ul.firstChild);\n\n dom.addClass(div, 'save-row');\n\n var gears = document.createElement('span');\n gears.innerHTML = ' ';\n dom.addClass(gears, 'button gears');\n\n // TODO replace with FunctionController\n var button = document.createElement('span');\n button.innerHTML = 'Save';\n dom.addClass(button, 'button');\n dom.addClass(button, 'save');\n\n var button2 = document.createElement('span');\n button2.innerHTML = 'New';\n dom.addClass(button2, 'button');\n dom.addClass(button2, 'save-as');\n\n var button3 = document.createElement('span');\n button3.innerHTML = 'Revert';\n dom.addClass(button3, 'button');\n dom.addClass(button3, 'revert');\n\n var select = gui.__preset_select = document.createElement('select');\n\n if (gui.load && gui.load.remembered) {\n\n common.each(gui.load.remembered, function(value, key) {\n addPresetOption(gui, key, key == gui.preset);\n });\n\n } else {\n addPresetOption(gui, DEFAULT_DEFAULT_PRESET_NAME, false);\n }\n\n dom.bind(select, 'change', function() {\n\n\n for (var index = 0; index < gui.__preset_select.length; index++) {\n gui.__preset_select[index].innerHTML = gui.__preset_select[index].value;\n }\n\n gui.preset = this.value;\n\n });\n\n div.appendChild(select);\n div.appendChild(gears);\n div.appendChild(button);\n div.appendChild(button2);\n div.appendChild(button3);\n\n if (SUPPORTS_LOCAL_STORAGE) {\n\n var saveLocally = document.getElementById('dg-save-locally');\n var explain = document.getElementById('dg-local-explain');\n\n saveLocally.style.display = 'block';\n\n var localStorageCheckBox = document.getElementById('dg-local-storage');\n\n if (localStorage.getItem(getLocalStorageHash(gui, 'isLocal')) === 'true') {\n localStorageCheckBox.setAttribute('checked', 'checked');\n }\n\n function showHideExplain() {\n explain.style.display = gui.useLocalStorage ? 'block' : 'none';\n }\n\n showHideExplain();\n\n // TODO: Use a boolean controller, fool!\n dom.bind(localStorageCheckBox, 'change', function() {\n gui.useLocalStorage = !gui.useLocalStorage;\n showHideExplain();\n });\n\n }\n\n var newConstructorTextArea = document.getElementById('dg-new-constructor');\n\n dom.bind(newConstructorTextArea, 'keydown', function(e) {\n if (e.metaKey && (e.which === 67 || e.keyCode == 67)) {\n SAVE_DIALOGUE.hide();\n }\n });\n\n dom.bind(gears, 'click', function() {\n newConstructorTextArea.innerHTML = JSON.stringify(gui.getSaveObject(), undefined, 2);\n SAVE_DIALOGUE.show();\n newConstructorTextArea.focus();\n newConstructorTextArea.select();\n });\n\n dom.bind(button, 'click', function() {\n gui.save();\n });\n\n dom.bind(button2, 'click', function() {\n var presetName = prompt('Enter a new preset name.');\n if (presetName) gui.saveAs(presetName);\n });\n\n dom.bind(button3, 'click', function() {\n gui.revert();\n });\n\n// div.appendChild(button2);\n\n }\n\n function addResizeHandle(gui) {\n\n gui.__resize_handle = document.createElement('div');\n\n common.extend(gui.__resize_handle.style, {\n\n width: '6px',\n marginLeft: '-3px',\n height: '200px',\n cursor: 'ew-resize',\n position: 'absolute'\n// border: '1px solid blue'\n\n });\n\n var pmouseX;\n\n dom.bind(gui.__resize_handle, 'mousedown', dragStart);\n dom.bind(gui.__closeButton, 'mousedown', dragStart);\n\n gui.domElement.insertBefore(gui.__resize_handle, gui.domElement.firstElementChild);\n\n function dragStart(e) {\n\n e.preventDefault();\n\n pmouseX = e.clientX;\n\n dom.addClass(gui.__closeButton, GUI.CLASS_DRAG);\n dom.bind(window, 'mousemove', drag);\n dom.bind(window, 'mouseup', dragStop);\n\n return false;\n\n }\n\n function drag(e) {\n\n e.preventDefault();\n\n gui.width += pmouseX - e.clientX;\n gui.onResize();\n pmouseX = e.clientX;\n\n return false;\n\n }\n\n function dragStop() {\n\n dom.removeClass(gui.__closeButton, GUI.CLASS_DRAG);\n dom.unbind(window, 'mousemove', drag);\n dom.unbind(window, 'mouseup', dragStop);\n\n }\n\n }\n\n function setWidth(gui, w) {\n gui.domElement.style.width = w + 'px';\n // Auto placed save-rows are position fixed, so we have to\n // set the width manually if we want it to bleed to the edge\n if (gui.__save_row && gui.autoPlace) {\n gui.__save_row.style.width = w + 'px';\n }if (gui.__closeButton) {\n gui.__closeButton.style.width = w + 'px';\n }\n }\n\n function getCurrentPreset(gui, useInitialValues) {\n\n var toReturn = {};\n\n // For each object I'm remembering\n common.each(gui.__rememberedObjects, function(val, index) {\n\n var saved_values = {};\n\n // The controllers I've made for thcommon.isObject by property\n var controller_map =\n gui.__rememberedObjectIndecesToControllers[index];\n\n // Remember each value for each property\n common.each(controller_map, function(controller, property) {\n saved_values[property] = useInitialValues ? controller.initialValue : controller.getValue();\n });\n\n // Save the values for thcommon.isObject\n toReturn[index] = saved_values;\n\n });\n\n return toReturn;\n\n }\n\n function addPresetOption(gui, name, setSelected) {\n var opt = document.createElement('option');\n opt.innerHTML = name;\n opt.value = name;\n gui.__preset_select.appendChild(opt);\n if (setSelected) {\n gui.__preset_select.selectedIndex = gui.__preset_select.length - 1;\n }\n }\n\n function setPresetSelectIndex(gui) {\n for (var index = 0; index < gui.__preset_select.length; index++) {\n if (gui.__preset_select[index].value == gui.preset) {\n gui.__preset_select.selectedIndex = index;\n }\n }\n }\n\n function markPresetModified(gui, modified) {\n var opt = gui.__preset_select[gui.__preset_select.selectedIndex];\n// console.log('mark', modified, opt);\n if (modified) {\n opt.innerHTML = opt.value + \"*\";\n } else {\n opt.innerHTML = opt.value;\n }\n }\n\n function updateDisplays(controllerArray) {\n\n\n if (controllerArray.length != 0) {\n\n requestAnimationFrame(function() {\n updateDisplays(controllerArray);\n });\n\n }\n\n common.each(controllerArray, function(c) {\n c.updateDisplay();\n });\n\n }\n\n return GUI;\n\n})(dat.utils.css,\n\"
\\n\\n Here's the new load parameter for your GUI's constructor:\\n\\n \\n\\n
\\n\\n Automatically save\\n values to localStorage on exit.\\n\\n
The values saved to localStorage will\\n override those passed to dat.GUI's constructor. This makes it\\n easier to work incrementally, but localStorage is fragile,\\n and your friends may not see the same values you do.\\n \\n
\\n \\n
\\n\\n
\",\n\".dg ul{list-style:none;margin:0;padding:0;width:100%;clear:both}.dg.ac{position:fixed;top:0;left:0;right:0;height:0;z-index:0}.dg:not(.ac) .main{overflow:hidden}.dg.main{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear}.dg.main.taller-than-window{overflow-y:auto}.dg.main.taller-than-window .close-button{opacity:1;margin-top:-1px;border-top:1px solid #2c2c2c}.dg.main ul.closed .close-button{opacity:1 !important}.dg.main:hover .close-button,.dg.main .close-button.drag{opacity:1}.dg.main .close-button{-webkit-transition:opacity 0.1s linear;-o-transition:opacity 0.1s linear;-moz-transition:opacity 0.1s linear;transition:opacity 0.1s linear;border:0;position:absolute;line-height:19px;height:20px;cursor:pointer;text-align:center;background-color:#000}.dg.main .close-button:hover{background-color:#111}.dg.a{float:right;margin-right:15px;overflow-x:hidden}.dg.a.has-save ul{margin-top:27px}.dg.a.has-save ul.closed{margin-top:0}.dg.a .save-row{position:fixed;top:0;z-index:1002}.dg li{-webkit-transition:height 0.1s ease-out;-o-transition:height 0.1s ease-out;-moz-transition:height 0.1s ease-out;transition:height 0.1s ease-out}.dg li:not(.folder){cursor:auto;height:27px;line-height:27px;overflow:hidden;padding:0 4px 0 5px}.dg li.folder{padding:0;border-left:4px solid rgba(0,0,0,0)}.dg li.title{cursor:pointer;margin-left:-4px}.dg .closed li:not(.title),.dg .closed ul li,.dg .closed ul li > *{height:0;overflow:hidden;border:0}.dg .cr{clear:both;padding-left:3px;height:27px}.dg .property-name{cursor:default;float:left;clear:left;width:40%;overflow:hidden;text-overflow:ellipsis}.dg .c{float:left;width:60%}.dg .c input[type=text]{border:0;margin-top:4px;padding:3px;width:100%;float:right}.dg .has-slider input[type=text]{width:30%;margin-left:0}.dg .slider{float:left;width:66%;margin-left:-5px;margin-right:0;height:19px;margin-top:4px}.dg .slider-fg{height:100%}.dg .c input[type=checkbox]{margin-top:9px}.dg .c select{margin-top:5px}.dg .cr.function,.dg .cr.function .property-name,.dg .cr.function *,.dg .cr.boolean,.dg .cr.boolean *{cursor:pointer}.dg .selector{display:none;position:absolute;margin-left:-9px;margin-top:23px;z-index:10}.dg .c:hover .selector,.dg .selector.drag{display:block}.dg li.save-row{padding:0}.dg li.save-row .button{display:inline-block;padding:0px 6px}.dg.dialogue{background-color:#222;width:460px;padding:15px;font-size:13px;line-height:15px}#dg-new-constructor{padding:10px;color:#222;font-family:Monaco, monospace;font-size:10px;border:0;resize:none;box-shadow:inset 1px 1px 1px #888;word-wrap:break-word;margin:12px 0;display:block;width:440px;overflow-y:scroll;height:100px;position:relative}#dg-local-explain{display:none;font-size:11px;line-height:17px;border-radius:3px;background-color:#333;padding:8px;margin-top:10px}#dg-local-explain code{font-size:10px}#dat-gui-save-locally{display:none}.dg{color:#eee;font:11px 'Lucida Grande', sans-serif;text-shadow:0 -1px 0 #111}.dg.main::-webkit-scrollbar{width:5px;background:#1a1a1a}.dg.main::-webkit-scrollbar-corner{height:0;display:none}.dg.main::-webkit-scrollbar-thumb{border-radius:5px;background:#676767}.dg li:not(.folder){background:#1a1a1a;border-bottom:1px solid #2c2c2c}.dg li.save-row{line-height:25px;background:#dad5cb;border:0}.dg li.save-row select{margin-left:5px;width:108px}.dg li.save-row .button{margin-left:5px;margin-top:1px;border-radius:2px;font-size:9px;line-height:7px;padding:4px 4px 5px 4px;background:#c5bdad;color:#fff;text-shadow:0 1px 0 #b0a58f;box-shadow:0 -1px 0 #b0a58f;cursor:pointer}.dg li.save-row .button.gears{background:#c5bdad url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAANCAYAAAB/9ZQ7AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAQJJREFUeNpiYKAU/P//PwGIC/ApCABiBSAW+I8AClAcgKxQ4T9hoMAEUrxx2QSGN6+egDX+/vWT4e7N82AMYoPAx/evwWoYoSYbACX2s7KxCxzcsezDh3evFoDEBYTEEqycggWAzA9AuUSQQgeYPa9fPv6/YWm/Acx5IPb7ty/fw+QZblw67vDs8R0YHyQhgObx+yAJkBqmG5dPPDh1aPOGR/eugW0G4vlIoTIfyFcA+QekhhHJhPdQxbiAIguMBTQZrPD7108M6roWYDFQiIAAv6Aow/1bFwXgis+f2LUAynwoIaNcz8XNx3Dl7MEJUDGQpx9gtQ8YCueB+D26OECAAQDadt7e46D42QAAAABJRU5ErkJggg==) 2px 1px no-repeat;height:7px;width:8px}.dg li.save-row .button:hover{background-color:#bab19e;box-shadow:0 -1px 0 #b0a58f}.dg li.folder{border-bottom:0}.dg li.title{padding-left:16px;background:#000 url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlI+hKgFxoCgAOw==) 6px 10px no-repeat;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.2)}.dg .closed li.title{background-image:url(data:image/gif;base64,R0lGODlhBQAFAJEAAP////Pz8////////yH5BAEAAAIALAAAAAAFAAUAAAIIlGIWqMCbWAEAOw==)}.dg .cr.boolean{border-left:3px solid #806787}.dg .cr.function{border-left:3px solid #e61d5f}.dg .cr.number{border-left:3px solid #2fa1d6}.dg .cr.number input[type=text]{color:#2fa1d6}.dg .cr.string{border-left:3px solid #1ed36f}.dg .cr.string input[type=text]{color:#1ed36f}.dg .cr.function:hover,.dg .cr.boolean:hover{background:#111}.dg .c input[type=text]{background:#303030;outline:none}.dg .c input[type=text]:hover{background:#3c3c3c}.dg .c input[type=text]:focus{background:#494949;color:#fff}.dg .c .slider{background:#303030;cursor:ew-resize}.dg .c .slider-fg{background:#2fa1d6}.dg .c .slider:hover{background:#3c3c3c}.dg .c .slider:hover .slider-fg{background:#44abda}\\n\",\ndat.controllers.factory = (function (OptionController, NumberControllerBox, NumberControllerSlider, StringController, FunctionController, BooleanController, common) {\n\n return function(object, property) {\n\n var initialValue = object[property];\n\n // Providing options?\n if (common.isArray(arguments[2]) || common.isObject(arguments[2])) {\n return new OptionController(object, property, arguments[2]);\n }\n\n // Providing a map?\n\n if (common.isNumber(initialValue)) {\n\n if (common.isNumber(arguments[2]) && common.isNumber(arguments[3])) {\n\n // Has min and max.\n return new NumberControllerSlider(object, property, arguments[2], arguments[3]);\n\n } else {\n\n return new NumberControllerBox(object, property, { min: arguments[2], max: arguments[3] });\n\n }\n\n }\n\n if (common.isString(initialValue)) {\n return new StringController(object, property);\n }\n\n if (common.isFunction(initialValue)) {\n return new FunctionController(object, property, '');\n }\n\n if (common.isBoolean(initialValue)) {\n return new BooleanController(object, property);\n }\n\n }\n\n })(dat.controllers.OptionController,\ndat.controllers.NumberControllerBox,\ndat.controllers.NumberControllerSlider,\ndat.controllers.StringController = (function (Controller, dom, common) {\n\n /**\n * @class Provides a text input to alter the string property of an object.\n *\n * @extends dat.controllers.Controller\n *\n * @param {Object} object The object to be manipulated\n * @param {string} property The name of the property to be manipulated\n *\n * @member dat.controllers\n */\n var StringController = function(object, property) {\n\n StringController.superclass.call(this, object, property);\n\n var _this = this;\n\n this.__input = document.createElement('input');\n this.__input.setAttribute('type', 'text');\n\n dom.bind(this.__input, 'keyup', onChange);\n dom.bind(this.__input, 'change', onChange);\n dom.bind(this.__input, 'blur', onBlur);\n dom.bind(this.__input, 'keydown', function(e) {\n if (e.keyCode === 13) {\n this.blur();\n }\n });\n \n\n function onChange() {\n _this.setValue(_this.__input.value);\n }\n\n function onBlur() {\n if (_this.__onFinishChange) {\n _this.__onFinishChange.call(_this, _this.getValue());\n }\n }\n\n this.updateDisplay();\n\n this.domElement.appendChild(this.__input);\n\n };\n\n StringController.superclass = Controller;\n\n common.extend(\n\n StringController.prototype,\n Controller.prototype,\n\n {\n\n updateDisplay: function() {\n // Stops the caret from moving on account of:\n // keyup -> setValue -> updateDisplay\n if (!dom.isActive(this.__input)) {\n this.__input.value = this.getValue();\n }\n return StringController.superclass.prototype.updateDisplay.call(this);\n }\n\n }\n\n );\n\n return StringController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.utils.common),\ndat.controllers.FunctionController,\ndat.controllers.BooleanController,\ndat.utils.common),\ndat.controllers.Controller,\ndat.controllers.BooleanController,\ndat.controllers.FunctionController,\ndat.controllers.NumberControllerBox,\ndat.controllers.NumberControllerSlider,\ndat.controllers.OptionController,\ndat.controllers.ColorController = (function (Controller, dom, Color, interpret, common) {\n\n var ColorController = function(object, property) {\n\n ColorController.superclass.call(this, object, property);\n\n this.__color = new Color(this.getValue());\n this.__temp = new Color(0);\n\n var _this = this;\n\n this.domElement = document.createElement('div');\n\n dom.makeSelectable(this.domElement, false);\n\n this.__selector = document.createElement('div');\n this.__selector.className = 'selector';\n\n this.__saturation_field = document.createElement('div');\n this.__saturation_field.className = 'saturation-field';\n\n this.__field_knob = document.createElement('div');\n this.__field_knob.className = 'field-knob';\n this.__field_knob_border = '2px solid ';\n\n this.__hue_knob = document.createElement('div');\n this.__hue_knob.className = 'hue-knob';\n\n this.__hue_field = document.createElement('div');\n this.__hue_field.className = 'hue-field';\n\n this.__input = document.createElement('input');\n this.__input.type = 'text';\n this.__input_textShadow = '0 1px 1px ';\n\n dom.bind(this.__input, 'keydown', function(e) {\n if (e.keyCode === 13) { // on enter\n onBlur.call(this);\n }\n });\n\n dom.bind(this.__input, 'blur', onBlur);\n\n dom.bind(this.__selector, 'mousedown', function(e) {\n\n dom\n .addClass(this, 'drag')\n .bind(window, 'mouseup', function(e) {\n dom.removeClass(_this.__selector, 'drag');\n });\n\n });\n\n var value_field = document.createElement('div');\n\n common.extend(this.__selector.style, {\n width: '122px',\n height: '102px',\n padding: '3px',\n backgroundColor: '#222',\n boxShadow: '0px 1px 3px rgba(0,0,0,0.3)'\n });\n\n common.extend(this.__field_knob.style, {\n position: 'absolute',\n width: '12px',\n height: '12px',\n border: this.__field_knob_border + (this.__color.v < .5 ? '#fff' : '#000'),\n boxShadow: '0px 1px 3px rgba(0,0,0,0.5)',\n borderRadius: '12px',\n zIndex: 1\n });\n \n common.extend(this.__hue_knob.style, {\n position: 'absolute',\n width: '15px',\n height: '2px',\n borderRight: '4px solid #fff',\n zIndex: 1\n });\n\n common.extend(this.__saturation_field.style, {\n width: '100px',\n height: '100px',\n border: '1px solid #555',\n marginRight: '3px',\n display: 'inline-block',\n cursor: 'pointer'\n });\n\n common.extend(value_field.style, {\n width: '100%',\n height: '100%',\n background: 'none'\n });\n \n linearGradient(value_field, 'top', 'rgba(0,0,0,0)', '#000');\n\n common.extend(this.__hue_field.style, {\n width: '15px',\n height: '100px',\n display: 'inline-block',\n border: '1px solid #555',\n cursor: 'ns-resize'\n });\n\n hueGradient(this.__hue_field);\n\n common.extend(this.__input.style, {\n outline: 'none',\n// width: '120px',\n textAlign: 'center',\n// padding: '4px',\n// marginBottom: '6px',\n color: '#fff',\n border: 0,\n fontWeight: 'bold',\n textShadow: this.__input_textShadow + 'rgba(0,0,0,0.7)'\n });\n\n dom.bind(this.__saturation_field, 'mousedown', fieldDown);\n dom.bind(this.__field_knob, 'mousedown', fieldDown);\n\n dom.bind(this.__hue_field, 'mousedown', function(e) {\n setH(e);\n dom.bind(window, 'mousemove', setH);\n dom.bind(window, 'mouseup', unbindH);\n });\n\n function fieldDown(e) {\n setSV(e);\n // document.body.style.cursor = 'none';\n dom.bind(window, 'mousemove', setSV);\n dom.bind(window, 'mouseup', unbindSV);\n }\n\n function unbindSV() {\n dom.unbind(window, 'mousemove', setSV);\n dom.unbind(window, 'mouseup', unbindSV);\n // document.body.style.cursor = 'default';\n }\n\n function onBlur() {\n var i = interpret(this.value);\n if (i !== false) {\n _this.__color.__state = i;\n _this.setValue(_this.__color.toOriginal());\n } else {\n this.value = _this.__color.toString();\n }\n }\n\n function unbindH() {\n dom.unbind(window, 'mousemove', setH);\n dom.unbind(window, 'mouseup', unbindH);\n }\n\n this.__saturation_field.appendChild(value_field);\n this.__selector.appendChild(this.__field_knob);\n this.__selector.appendChild(this.__saturation_field);\n this.__selector.appendChild(this.__hue_field);\n this.__hue_field.appendChild(this.__hue_knob);\n\n this.domElement.appendChild(this.__input);\n this.domElement.appendChild(this.__selector);\n\n this.updateDisplay();\n\n function setSV(e) {\n\n e.preventDefault();\n\n var w = dom.getWidth(_this.__saturation_field);\n var o = dom.getOffset(_this.__saturation_field);\n var s = (e.clientX - o.left + document.body.scrollLeft) / w;\n var v = 1 - (e.clientY - o.top + document.body.scrollTop) / w;\n\n if (v > 1) v = 1;\n else if (v < 0) v = 0;\n\n if (s > 1) s = 1;\n else if (s < 0) s = 0;\n\n _this.__color.v = v;\n _this.__color.s = s;\n\n _this.setValue(_this.__color.toOriginal());\n\n\n return false;\n\n }\n\n function setH(e) {\n\n e.preventDefault();\n\n var s = dom.getHeight(_this.__hue_field);\n var o = dom.getOffset(_this.__hue_field);\n var h = 1 - (e.clientY - o.top + document.body.scrollTop) / s;\n\n if (h > 1) h = 1;\n else if (h < 0) h = 0;\n\n _this.__color.h = h * 360;\n\n _this.setValue(_this.__color.toOriginal());\n\n return false;\n\n }\n\n };\n\n ColorController.superclass = Controller;\n\n common.extend(\n\n ColorController.prototype,\n Controller.prototype,\n\n {\n\n updateDisplay: function() {\n\n var i = interpret(this.getValue());\n\n if (i !== false) {\n\n var mismatch = false;\n\n // Check for mismatch on the interpreted value.\n\n common.each(Color.COMPONENTS, function(component) {\n if (!common.isUndefined(i[component]) &&\n !common.isUndefined(this.__color.__state[component]) &&\n i[component] !== this.__color.__state[component]) {\n mismatch = true;\n return {}; // break\n }\n }, this);\n\n // If nothing diverges, we keep our previous values\n // for statefulness, otherwise we recalculate fresh\n if (mismatch) {\n common.extend(this.__color.__state, i);\n }\n\n }\n\n common.extend(this.__temp.__state, this.__color.__state);\n\n this.__temp.a = 1;\n\n var flip = (this.__color.v < .5 || this.__color.s > .5) ? 255 : 0;\n var _flip = 255 - flip;\n\n common.extend(this.__field_knob.style, {\n marginLeft: 100 * this.__color.s - 7 + 'px',\n marginTop: 100 * (1 - this.__color.v) - 7 + 'px',\n backgroundColor: this.__temp.toString(),\n border: this.__field_knob_border + 'rgb(' + flip + ',' + flip + ',' + flip +')'\n });\n\n this.__hue_knob.style.marginTop = (1 - this.__color.h / 360) * 100 + 'px'\n\n this.__temp.s = 1;\n this.__temp.v = 1;\n\n linearGradient(this.__saturation_field, 'left', '#fff', this.__temp.toString());\n\n common.extend(this.__input.style, {\n backgroundColor: this.__input.value = this.__color.toString(),\n color: 'rgb(' + flip + ',' + flip + ',' + flip +')',\n textShadow: this.__input_textShadow + 'rgba(' + _flip + ',' + _flip + ',' + _flip +',.7)'\n });\n\n }\n\n }\n\n );\n \n var vendors = ['-moz-','-o-','-webkit-','-ms-',''];\n \n function linearGradient(elem, x, a, b) {\n elem.style.background = '';\n common.each(vendors, function(vendor) {\n elem.style.cssText += 'background: ' + vendor + 'linear-gradient('+x+', '+a+' 0%, ' + b + ' 100%); ';\n });\n }\n \n function hueGradient(elem) {\n elem.style.background = '';\n elem.style.cssText += 'background: -moz-linear-gradient(top, #ff0000 0%, #ff00ff 17%, #0000ff 34%, #00ffff 50%, #00ff00 67%, #ffff00 84%, #ff0000 100%);'\n elem.style.cssText += 'background: -webkit-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: -o-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: -ms-linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n elem.style.cssText += 'background: linear-gradient(top, #ff0000 0%,#ff00ff 17%,#0000ff 34%,#00ffff 50%,#00ff00 67%,#ffff00 84%,#ff0000 100%);'\n }\n\n\n return ColorController;\n\n})(dat.controllers.Controller,\ndat.dom.dom,\ndat.color.Color = (function (interpret, math, toString, common) {\n\n var Color = function() {\n\n this.__state = interpret.apply(this, arguments);\n\n if (this.__state === false) {\n throw 'Failed to interpret color arguments';\n }\n\n this.__state.a = this.__state.a || 1;\n\n\n };\n\n Color.COMPONENTS = ['r','g','b','h','s','v','hex','a'];\n\n common.extend(Color.prototype, {\n\n toString: function() {\n return toString(this);\n },\n\n toOriginal: function() {\n return this.__state.conversion.write(this);\n }\n\n });\n\n defineRGBComponent(Color.prototype, 'r', 2);\n defineRGBComponent(Color.prototype, 'g', 1);\n defineRGBComponent(Color.prototype, 'b', 0);\n\n defineHSVComponent(Color.prototype, 'h');\n defineHSVComponent(Color.prototype, 's');\n defineHSVComponent(Color.prototype, 'v');\n\n Object.defineProperty(Color.prototype, 'a', {\n\n get: function() {\n return this.__state.a;\n },\n\n set: function(v) {\n this.__state.a = v;\n }\n\n });\n\n Object.defineProperty(Color.prototype, 'hex', {\n\n get: function() {\n\n if (!this.__state.space !== 'HEX') {\n this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b);\n }\n\n return this.__state.hex;\n\n },\n\n set: function(v) {\n\n this.__state.space = 'HEX';\n this.__state.hex = v;\n\n }\n\n });\n\n function defineRGBComponent(target, component, componentHexIndex) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'RGB') {\n return this.__state[component];\n }\n\n recalculateRGB(this, component, componentHexIndex);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'RGB') {\n recalculateRGB(this, component, componentHexIndex);\n this.__state.space = 'RGB';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function defineHSVComponent(target, component) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'HSV')\n return this.__state[component];\n\n recalculateHSV(this);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'HSV') {\n recalculateHSV(this);\n this.__state.space = 'HSV';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function recalculateRGB(color, component, componentHexIndex) {\n\n if (color.__state.space === 'HEX') {\n\n color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex);\n\n } else if (color.__state.space === 'HSV') {\n\n common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));\n\n } else {\n\n throw 'Corrupted color state';\n\n }\n\n }\n\n function recalculateHSV(color) {\n\n var result = math.rgb_to_hsv(color.r, color.g, color.b);\n\n common.extend(color.__state,\n {\n s: result.s,\n v: result.v\n }\n );\n\n if (!common.isNaN(result.h)) {\n color.__state.h = result.h;\n } else if (common.isUndefined(color.__state.h)) {\n color.__state.h = 0;\n }\n\n }\n\n return Color;\n\n})(dat.color.interpret,\ndat.color.math = (function () {\n\n var tmpComponent;\n\n return {\n\n hsv_to_rgb: function(h, s, v) {\n\n var hi = Math.floor(h / 60) % 6;\n\n var f = h / 60 - Math.floor(h / 60);\n var p = v * (1.0 - s);\n var q = v * (1.0 - (f * s));\n var t = v * (1.0 - ((1.0 - f) * s));\n var c = [\n [v, t, p],\n [q, v, p],\n [p, v, t],\n [p, q, v],\n [t, p, v],\n [v, p, q]\n ][hi];\n\n return {\n r: c[0] * 255,\n g: c[1] * 255,\n b: c[2] * 255\n };\n\n },\n\n rgb_to_hsv: function(r, g, b) {\n\n var min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n delta = max - min,\n h, s;\n\n if (max != 0) {\n s = delta / max;\n } else {\n return {\n h: NaN,\n s: 0,\n v: 0\n };\n }\n\n if (r == max) {\n h = (g - b) / delta;\n } else if (g == max) {\n h = 2 + (b - r) / delta;\n } else {\n h = 4 + (r - g) / delta;\n }\n h /= 6;\n if (h < 0) {\n h += 1;\n }\n\n return {\n h: h * 360,\n s: s,\n v: max / 255\n };\n },\n\n rgb_to_hex: function(r, g, b) {\n var hex = this.hex_with_component(0, 2, r);\n hex = this.hex_with_component(hex, 1, g);\n hex = this.hex_with_component(hex, 0, b);\n return hex;\n },\n\n component_from_hex: function(hex, componentIndex) {\n return (hex >> (componentIndex * 8)) & 0xFF;\n },\n\n hex_with_component: function(hex, componentIndex, value) {\n return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent));\n }\n\n }\n\n})(),\ndat.color.toString,\ndat.utils.common),\ndat.color.interpret,\ndat.utils.common),\ndat.utils.requestAnimationFrame = (function () {\n\n /**\n * requirejs version of Paul Irish's RequestAnimationFrame\n * http://paulirish.com/2011/requestanimationframe-for-smart-animating/\n */\n\n return window.webkitRequestAnimationFrame ||\n window.mozRequestAnimationFrame ||\n window.oRequestAnimationFrame ||\n window.msRequestAnimationFrame ||\n function(callback, element) {\n\n window.setTimeout(callback, 1000 / 60);\n\n };\n})(),\ndat.dom.CenteredDiv = (function (dom, common) {\n\n\n var CenteredDiv = function() {\n\n this.backgroundElement = document.createElement('div');\n common.extend(this.backgroundElement.style, {\n backgroundColor: 'rgba(0,0,0,0.8)',\n top: 0,\n left: 0,\n display: 'none',\n zIndex: '1000',\n opacity: 0,\n WebkitTransition: 'opacity 0.2s linear'\n });\n\n dom.makeFullscreen(this.backgroundElement);\n this.backgroundElement.style.position = 'fixed';\n\n this.domElement = document.createElement('div');\n common.extend(this.domElement.style, {\n position: 'fixed',\n display: 'none',\n zIndex: '1001',\n opacity: 0,\n WebkitTransition: '-webkit-transform 0.2s ease-out, opacity 0.2s linear'\n });\n\n\n document.body.appendChild(this.backgroundElement);\n document.body.appendChild(this.domElement);\n\n var _this = this;\n dom.bind(this.backgroundElement, 'click', function() {\n _this.hide();\n });\n\n\n };\n\n CenteredDiv.prototype.show = function() {\n\n var _this = this;\n \n\n\n this.backgroundElement.style.display = 'block';\n\n this.domElement.style.display = 'block';\n this.domElement.style.opacity = 0;\n// this.domElement.style.top = '52%';\n this.domElement.style.webkitTransform = 'scale(1.1)';\n\n this.layout();\n\n common.defer(function() {\n _this.backgroundElement.style.opacity = 1;\n _this.domElement.style.opacity = 1;\n _this.domElement.style.webkitTransform = 'scale(1)';\n });\n\n };\n\n CenteredDiv.prototype.hide = function() {\n\n var _this = this;\n\n var hide = function() {\n\n _this.domElement.style.display = 'none';\n _this.backgroundElement.style.display = 'none';\n\n dom.unbind(_this.domElement, 'webkitTransitionEnd', hide);\n dom.unbind(_this.domElement, 'transitionend', hide);\n dom.unbind(_this.domElement, 'oTransitionEnd', hide);\n\n };\n\n dom.bind(this.domElement, 'webkitTransitionEnd', hide);\n dom.bind(this.domElement, 'transitionend', hide);\n dom.bind(this.domElement, 'oTransitionEnd', hide);\n\n this.backgroundElement.style.opacity = 0;\n// this.domElement.style.top = '48%';\n this.domElement.style.opacity = 0;\n this.domElement.style.webkitTransform = 'scale(1.1)';\n\n };\n\n CenteredDiv.prototype.layout = function() {\n this.domElement.style.left = window.innerWidth/2 - dom.getWidth(this.domElement) / 2 + 'px';\n this.domElement.style.top = window.innerHeight/2 - dom.getHeight(this.domElement) / 2 + 'px';\n };\n \n function lockScroll(e) {\n console.log(e);\n }\n\n return CenteredDiv;\n\n})(dat.dom.dom,\ndat.utils.common),\ndat.dom.dom,\ndat.utils.common);\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/dat-gui/vendor/dat.gui.js\n// module id = 4\n// module chunks = 0","/**\n * dat-gui JavaScript Controller Library\n * http://code.google.com/p/dat-gui\n *\n * Copyright 2011 Data Arts Team, Google Creative Lab\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n */\n\n/** @namespace */\nvar dat = module.exports = dat || {};\n\n/** @namespace */\ndat.color = dat.color || {};\n\n/** @namespace */\ndat.utils = dat.utils || {};\n\ndat.utils.common = (function () {\n \n var ARR_EACH = Array.prototype.forEach;\n var ARR_SLICE = Array.prototype.slice;\n\n /**\n * Band-aid methods for things that should be a lot easier in JavaScript.\n * Implementation and structure inspired by underscore.js\n * http://documentcloud.github.com/underscore/\n */\n\n return { \n \n BREAK: {},\n \n extend: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (!this.isUndefined(obj[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n defaults: function(target) {\n \n this.each(ARR_SLICE.call(arguments, 1), function(obj) {\n \n for (var key in obj)\n if (this.isUndefined(target[key])) \n target[key] = obj[key];\n \n }, this);\n \n return target;\n \n },\n \n compose: function() {\n var toCall = ARR_SLICE.call(arguments);\n return function() {\n var args = ARR_SLICE.call(arguments);\n for (var i = toCall.length -1; i >= 0; i--) {\n args = [toCall[i].apply(this, args)];\n }\n return args[0];\n }\n },\n \n each: function(obj, itr, scope) {\n\n \n if (ARR_EACH && obj.forEach === ARR_EACH) { \n \n obj.forEach(itr, scope);\n \n } else if (obj.length === obj.length + 0) { // Is number but not NaN\n \n for (var key = 0, l = obj.length; key < l; key++)\n if (key in obj && itr.call(scope, obj[key], key) === this.BREAK) \n return;\n \n } else {\n\n for (var key in obj) \n if (itr.call(scope, obj[key], key) === this.BREAK)\n return;\n \n }\n \n },\n \n defer: function(fnc) {\n setTimeout(fnc, 0);\n },\n \n toArray: function(obj) {\n if (obj.toArray) return obj.toArray();\n return ARR_SLICE.call(obj);\n },\n\n isUndefined: function(obj) {\n return obj === undefined;\n },\n \n isNull: function(obj) {\n return obj === null;\n },\n \n isNaN: function(obj) {\n return obj !== obj;\n },\n \n isArray: Array.isArray || function(obj) {\n return obj.constructor === Array;\n },\n \n isObject: function(obj) {\n return obj === Object(obj);\n },\n \n isNumber: function(obj) {\n return obj === obj+0;\n },\n \n isString: function(obj) {\n return obj === obj+'';\n },\n \n isBoolean: function(obj) {\n return obj === false || obj === true;\n },\n \n isFunction: function(obj) {\n return Object.prototype.toString.call(obj) === '[object Function]';\n }\n \n };\n \n})();\n\n\ndat.color.toString = (function (common) {\n\n return function(color) {\n\n if (color.a == 1 || common.isUndefined(color.a)) {\n\n var s = color.hex.toString(16);\n while (s.length < 6) {\n s = '0' + s;\n }\n\n return '#' + s;\n\n } else {\n\n return 'rgba(' + Math.round(color.r) + ',' + Math.round(color.g) + ',' + Math.round(color.b) + ',' + color.a + ')';\n\n }\n\n }\n\n})(dat.utils.common);\n\n\ndat.Color = dat.color.Color = (function (interpret, math, toString, common) {\n\n var Color = function() {\n\n this.__state = interpret.apply(this, arguments);\n\n if (this.__state === false) {\n throw 'Failed to interpret color arguments';\n }\n\n this.__state.a = this.__state.a || 1;\n\n\n };\n\n Color.COMPONENTS = ['r','g','b','h','s','v','hex','a'];\n\n common.extend(Color.prototype, {\n\n toString: function() {\n return toString(this);\n },\n\n toOriginal: function() {\n return this.__state.conversion.write(this);\n }\n\n });\n\n defineRGBComponent(Color.prototype, 'r', 2);\n defineRGBComponent(Color.prototype, 'g', 1);\n defineRGBComponent(Color.prototype, 'b', 0);\n\n defineHSVComponent(Color.prototype, 'h');\n defineHSVComponent(Color.prototype, 's');\n defineHSVComponent(Color.prototype, 'v');\n\n Object.defineProperty(Color.prototype, 'a', {\n\n get: function() {\n return this.__state.a;\n },\n\n set: function(v) {\n this.__state.a = v;\n }\n\n });\n\n Object.defineProperty(Color.prototype, 'hex', {\n\n get: function() {\n\n if (!this.__state.space !== 'HEX') {\n this.__state.hex = math.rgb_to_hex(this.r, this.g, this.b);\n }\n\n return this.__state.hex;\n\n },\n\n set: function(v) {\n\n this.__state.space = 'HEX';\n this.__state.hex = v;\n\n }\n\n });\n\n function defineRGBComponent(target, component, componentHexIndex) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'RGB') {\n return this.__state[component];\n }\n\n recalculateRGB(this, component, componentHexIndex);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'RGB') {\n recalculateRGB(this, component, componentHexIndex);\n this.__state.space = 'RGB';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function defineHSVComponent(target, component) {\n\n Object.defineProperty(target, component, {\n\n get: function() {\n\n if (this.__state.space === 'HSV')\n return this.__state[component];\n\n recalculateHSV(this);\n\n return this.__state[component];\n\n },\n\n set: function(v) {\n\n if (this.__state.space !== 'HSV') {\n recalculateHSV(this);\n this.__state.space = 'HSV';\n }\n\n this.__state[component] = v;\n\n }\n\n });\n\n }\n\n function recalculateRGB(color, component, componentHexIndex) {\n\n if (color.__state.space === 'HEX') {\n\n color.__state[component] = math.component_from_hex(color.__state.hex, componentHexIndex);\n\n } else if (color.__state.space === 'HSV') {\n\n common.extend(color.__state, math.hsv_to_rgb(color.__state.h, color.__state.s, color.__state.v));\n\n } else {\n\n throw 'Corrupted color state';\n\n }\n\n }\n\n function recalculateHSV(color) {\n\n var result = math.rgb_to_hsv(color.r, color.g, color.b);\n\n common.extend(color.__state,\n {\n s: result.s,\n v: result.v\n }\n );\n\n if (!common.isNaN(result.h)) {\n color.__state.h = result.h;\n } else if (common.isUndefined(color.__state.h)) {\n color.__state.h = 0;\n }\n\n }\n\n return Color;\n\n})(dat.color.interpret = (function (toString, common) {\n\n var result, toReturn;\n\n var interpret = function() {\n\n toReturn = false;\n\n var original = arguments.length > 1 ? common.toArray(arguments) : arguments[0];\n\n common.each(INTERPRETATIONS, function(family) {\n\n if (family.litmus(original)) {\n\n common.each(family.conversions, function(conversion, conversionName) {\n\n result = conversion.read(original);\n\n if (toReturn === false && result !== false) {\n toReturn = result;\n result.conversionName = conversionName;\n result.conversion = conversion;\n return common.BREAK;\n\n }\n\n });\n\n return common.BREAK;\n\n }\n\n });\n\n return toReturn;\n\n };\n\n var INTERPRETATIONS = [\n\n // Strings\n {\n\n litmus: common.isString,\n\n conversions: {\n\n THREE_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9])([A-F0-9])([A-F0-9])$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt(\n '0x' +\n test[1].toString() + test[1].toString() +\n test[2].toString() + test[2].toString() +\n test[3].toString() + test[3].toString())\n };\n\n },\n\n write: toString\n\n },\n\n SIX_CHAR_HEX: {\n\n read: function(original) {\n\n var test = original.match(/^#([A-F0-9]{6})$/i);\n if (test === null) return false;\n\n return {\n space: 'HEX',\n hex: parseInt('0x' + test[1].toString())\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGB: {\n\n read: function(original) {\n\n var test = original.match(/^rgb\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3])\n };\n\n },\n\n write: toString\n\n },\n\n CSS_RGBA: {\n\n read: function(original) {\n\n var test = original.match(/^rgba\\(\\s*(.+)\\s*,\\s*(.+)\\s*,\\s*(.+)\\s*\\,\\s*(.+)\\s*\\)/);\n if (test === null) return false;\n\n return {\n space: 'RGB',\n r: parseFloat(test[1]),\n g: parseFloat(test[2]),\n b: parseFloat(test[3]),\n a: parseFloat(test[4])\n };\n\n },\n\n write: toString\n\n }\n\n }\n\n },\n\n // Numbers\n {\n\n litmus: common.isNumber,\n\n conversions: {\n\n HEX: {\n read: function(original) {\n return {\n space: 'HEX',\n hex: original,\n conversionName: 'HEX'\n }\n },\n\n write: function(color) {\n return color.hex;\n }\n }\n\n }\n\n },\n\n // Arrays\n {\n\n litmus: common.isArray,\n\n conversions: {\n\n RGB_ARRAY: {\n read: function(original) {\n if (original.length != 3) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b];\n }\n\n },\n\n RGBA_ARRAY: {\n read: function(original) {\n if (original.length != 4) return false;\n return {\n space: 'RGB',\n r: original[0],\n g: original[1],\n b: original[2],\n a: original[3]\n };\n },\n\n write: function(color) {\n return [color.r, color.g, color.b, color.a];\n }\n\n }\n\n }\n\n },\n\n // Objects\n {\n\n litmus: common.isObject,\n\n conversions: {\n\n RGBA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b) &&\n common.isNumber(original.a)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b,\n a: color.a\n }\n }\n },\n\n RGB_OBJ: {\n read: function(original) {\n if (common.isNumber(original.r) &&\n common.isNumber(original.g) &&\n common.isNumber(original.b)) {\n return {\n space: 'RGB',\n r: original.r,\n g: original.g,\n b: original.b\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n r: color.r,\n g: color.g,\n b: color.b\n }\n }\n },\n\n HSVA_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v) &&\n common.isNumber(original.a)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v,\n a: original.a\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v,\n a: color.a\n }\n }\n },\n\n HSV_OBJ: {\n read: function(original) {\n if (common.isNumber(original.h) &&\n common.isNumber(original.s) &&\n common.isNumber(original.v)) {\n return {\n space: 'HSV',\n h: original.h,\n s: original.s,\n v: original.v\n }\n }\n return false;\n },\n\n write: function(color) {\n return {\n h: color.h,\n s: color.s,\n v: color.v\n }\n }\n\n }\n\n }\n\n }\n\n\n ];\n\n return interpret;\n\n\n})(dat.color.toString,\ndat.utils.common),\ndat.color.math = (function () {\n\n var tmpComponent;\n\n return {\n\n hsv_to_rgb: function(h, s, v) {\n\n var hi = Math.floor(h / 60) % 6;\n\n var f = h / 60 - Math.floor(h / 60);\n var p = v * (1.0 - s);\n var q = v * (1.0 - (f * s));\n var t = v * (1.0 - ((1.0 - f) * s));\n var c = [\n [v, t, p],\n [q, v, p],\n [p, v, t],\n [p, q, v],\n [t, p, v],\n [v, p, q]\n ][hi];\n\n return {\n r: c[0] * 255,\n g: c[1] * 255,\n b: c[2] * 255\n };\n\n },\n\n rgb_to_hsv: function(r, g, b) {\n\n var min = Math.min(r, g, b),\n max = Math.max(r, g, b),\n delta = max - min,\n h, s;\n\n if (max != 0) {\n s = delta / max;\n } else {\n return {\n h: NaN,\n s: 0,\n v: 0\n };\n }\n\n if (r == max) {\n h = (g - b) / delta;\n } else if (g == max) {\n h = 2 + (b - r) / delta;\n } else {\n h = 4 + (r - g) / delta;\n }\n h /= 6;\n if (h < 0) {\n h += 1;\n }\n\n return {\n h: h * 360,\n s: s,\n v: max / 255\n };\n },\n\n rgb_to_hex: function(r, g, b) {\n var hex = this.hex_with_component(0, 2, r);\n hex = this.hex_with_component(hex, 1, g);\n hex = this.hex_with_component(hex, 0, b);\n return hex;\n },\n\n component_from_hex: function(hex, componentIndex) {\n return (hex >> (componentIndex * 8)) & 0xFF;\n },\n\n hex_with_component: function(hex, componentIndex, value) {\n return value << (tmpComponent = componentIndex * 8) | (hex & ~ (0xFF << tmpComponent));\n }\n\n }\n\n})(),\ndat.color.toString,\ndat.utils.common);\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/dat-gui/vendor/dat.color.js\n// module id = 5\n// module chunks = 0","(function (global, factory) {\n\ttypeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :\n\ttypeof define === 'function' && define.amd ? define(['exports'], factory) :\n\t(factory((global.THREE = global.THREE || {})));\n}(this, (function (exports) { 'use strict';\n\n\t// Polyfills\n\n\tif ( Number.EPSILON === undefined ) {\n\n\t\tNumber.EPSILON = Math.pow( 2, - 52 );\n\n\t}\n\n\t//\n\n\tif ( Math.sign === undefined ) {\n\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/sign\n\n\t\tMath.sign = function ( x ) {\n\n\t\t\treturn ( x < 0 ) ? - 1 : ( x > 0 ) ? 1 : + x;\n\n\t\t};\n\n\t}\n\n\tif ( Function.prototype.name === undefined ) {\n\n\t\t// Missing in IE9-11.\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name\n\n\t\tObject.defineProperty( Function.prototype, 'name', {\n\n\t\t\tget: function () {\n\n\t\t\t\treturn this.toString().match( /^\\s*function\\s*(\\S*)\\s*\\(/ )[ 1 ];\n\n\t\t\t}\n\n\t\t} );\n\n\t}\n\n\tif ( Object.assign === undefined ) {\n\n\t\t// Missing in IE.\n\t\t// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign\n\n\t\t( function () {\n\n\t\t\tObject.assign = function ( target ) {\n\n\t\t\t\t'use strict';\n\n\t\t\t\tif ( target === undefined || target === null ) {\n\n\t\t\t\t\tthrow new TypeError( 'Cannot convert undefined or null to object' );\n\n\t\t\t\t}\n\n\t\t\t\tvar output = Object( target );\n\n\t\t\t\tfor ( var index = 1; index < arguments.length; index ++ ) {\n\n\t\t\t\t\tvar source = arguments[ index ];\n\n\t\t\t\t\tif ( source !== undefined && source !== null ) {\n\n\t\t\t\t\t\tfor ( var nextKey in source ) {\n\n\t\t\t\t\t\t\tif ( Object.prototype.hasOwnProperty.call( source, nextKey ) ) {\n\n\t\t\t\t\t\t\t\toutput[ nextKey ] = source[ nextKey ];\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn output;\n\n\t\t\t};\n\n\t\t} )();\n\n\t}\n\n\t/**\n\t * https://github.com/mrdoob/eventdispatcher.js/\n\t */\n\n\tfunction EventDispatcher() {}\n\n\tObject.assign( EventDispatcher.prototype, {\n\n\t\taddEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) this._listeners = {};\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\tif ( listeners[ type ] === undefined ) {\n\n\t\t\t\tlisteners[ type ] = [];\n\n\t\t\t}\n\n\t\t\tif ( listeners[ type ].indexOf( listener ) === - 1 ) {\n\n\t\t\t\tlisteners[ type ].push( listener );\n\n\t\t\t}\n\n\t\t},\n\n\t\thasEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return false;\n\n\t\t\tvar listeners = this._listeners;\n\n\t\t\tif ( listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tremoveEventListener: function ( type, listener ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tvar index = listenerArray.indexOf( listener );\n\n\t\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\t\tlistenerArray.splice( index, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tdispatchEvent: function ( event ) {\n\n\t\t\tif ( this._listeners === undefined ) return;\n\n\t\t\tvar listeners = this._listeners;\n\t\t\tvar listenerArray = listeners[ event.type ];\n\n\t\t\tif ( listenerArray !== undefined ) {\n\n\t\t\t\tevent.target = this;\n\n\t\t\t\tvar array = [], i = 0;\n\t\t\t\tvar length = listenerArray.length;\n\n\t\t\t\tfor ( i = 0; i < length; i ++ ) {\n\n\t\t\t\t\tarray[ i ] = listenerArray[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( i = 0; i < length; i ++ ) {\n\n\t\t\t\t\tarray[ i ].call( this, event );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\tvar REVISION = '82';\n\tvar MOUSE = { LEFT: 0, MIDDLE: 1, RIGHT: 2 };\n\tvar CullFaceNone = 0;\n\tvar CullFaceBack = 1;\n\tvar CullFaceFront = 2;\n\tvar CullFaceFrontBack = 3;\n\tvar FrontFaceDirectionCW = 0;\n\tvar FrontFaceDirectionCCW = 1;\n\tvar BasicShadowMap = 0;\n\tvar PCFShadowMap = 1;\n\tvar PCFSoftShadowMap = 2;\n\tvar FrontSide = 0;\n\tvar BackSide = 1;\n\tvar DoubleSide = 2;\n\tvar FlatShading = 1;\n\tvar SmoothShading = 2;\n\tvar NoColors = 0;\n\tvar FaceColors = 1;\n\tvar VertexColors = 2;\n\tvar NoBlending = 0;\n\tvar NormalBlending = 1;\n\tvar AdditiveBlending = 2;\n\tvar SubtractiveBlending = 3;\n\tvar MultiplyBlending = 4;\n\tvar CustomBlending = 5;\n\tvar BlendingMode = {\n\t\tNoBlending: NoBlending,\n\t\tNormalBlending: NormalBlending,\n\t\tAdditiveBlending: AdditiveBlending,\n\t\tSubtractiveBlending: SubtractiveBlending,\n\t\tMultiplyBlending: MultiplyBlending,\n\t\tCustomBlending: CustomBlending\n\t};\n\tvar AddEquation = 100;\n\tvar SubtractEquation = 101;\n\tvar ReverseSubtractEquation = 102;\n\tvar MinEquation = 103;\n\tvar MaxEquation = 104;\n\tvar ZeroFactor = 200;\n\tvar OneFactor = 201;\n\tvar SrcColorFactor = 202;\n\tvar OneMinusSrcColorFactor = 203;\n\tvar SrcAlphaFactor = 204;\n\tvar OneMinusSrcAlphaFactor = 205;\n\tvar DstAlphaFactor = 206;\n\tvar OneMinusDstAlphaFactor = 207;\n\tvar DstColorFactor = 208;\n\tvar OneMinusDstColorFactor = 209;\n\tvar SrcAlphaSaturateFactor = 210;\n\tvar NeverDepth = 0;\n\tvar AlwaysDepth = 1;\n\tvar LessDepth = 2;\n\tvar LessEqualDepth = 3;\n\tvar EqualDepth = 4;\n\tvar GreaterEqualDepth = 5;\n\tvar GreaterDepth = 6;\n\tvar NotEqualDepth = 7;\n\tvar MultiplyOperation = 0;\n\tvar MixOperation = 1;\n\tvar AddOperation = 2;\n\tvar NoToneMapping = 0;\n\tvar LinearToneMapping = 1;\n\tvar ReinhardToneMapping = 2;\n\tvar Uncharted2ToneMapping = 3;\n\tvar CineonToneMapping = 4;\n\tvar UVMapping = 300;\n\tvar CubeReflectionMapping = 301;\n\tvar CubeRefractionMapping = 302;\n\tvar EquirectangularReflectionMapping = 303;\n\tvar EquirectangularRefractionMapping = 304;\n\tvar SphericalReflectionMapping = 305;\n\tvar CubeUVReflectionMapping = 306;\n\tvar CubeUVRefractionMapping = 307;\n\tvar TextureMapping = {\n\t\tUVMapping: UVMapping,\n\t\tCubeReflectionMapping: CubeReflectionMapping,\n\t\tCubeRefractionMapping: CubeRefractionMapping,\n\t\tEquirectangularReflectionMapping: EquirectangularReflectionMapping,\n\t\tEquirectangularRefractionMapping: EquirectangularRefractionMapping,\n\t\tSphericalReflectionMapping: SphericalReflectionMapping,\n\t\tCubeUVReflectionMapping: CubeUVReflectionMapping,\n\t\tCubeUVRefractionMapping: CubeUVRefractionMapping\n\t};\n\tvar RepeatWrapping = 1000;\n\tvar ClampToEdgeWrapping = 1001;\n\tvar MirroredRepeatWrapping = 1002;\n\tvar TextureWrapping = {\n\t\tRepeatWrapping: RepeatWrapping,\n\t\tClampToEdgeWrapping: ClampToEdgeWrapping,\n\t\tMirroredRepeatWrapping: MirroredRepeatWrapping\n\t};\n\tvar NearestFilter = 1003;\n\tvar NearestMipMapNearestFilter = 1004;\n\tvar NearestMipMapLinearFilter = 1005;\n\tvar LinearFilter = 1006;\n\tvar LinearMipMapNearestFilter = 1007;\n\tvar LinearMipMapLinearFilter = 1008;\n\tvar TextureFilter = {\n\t\tNearestFilter: NearestFilter,\n\t\tNearestMipMapNearestFilter: NearestMipMapNearestFilter,\n\t\tNearestMipMapLinearFilter: NearestMipMapLinearFilter,\n\t\tLinearFilter: LinearFilter,\n\t\tLinearMipMapNearestFilter: LinearMipMapNearestFilter,\n\t\tLinearMipMapLinearFilter: LinearMipMapLinearFilter\n\t};\n\tvar UnsignedByteType = 1009;\n\tvar ByteType = 1010;\n\tvar ShortType = 1011;\n\tvar UnsignedShortType = 1012;\n\tvar IntType = 1013;\n\tvar UnsignedIntType = 1014;\n\tvar FloatType = 1015;\n\tvar HalfFloatType = 1016;\n\tvar UnsignedShort4444Type = 1017;\n\tvar UnsignedShort5551Type = 1018;\n\tvar UnsignedShort565Type = 1019;\n\tvar UnsignedInt248Type = 1020;\n\tvar AlphaFormat = 1021;\n\tvar RGBFormat = 1022;\n\tvar RGBAFormat = 1023;\n\tvar LuminanceFormat = 1024;\n\tvar LuminanceAlphaFormat = 1025;\n\tvar RGBEFormat = RGBAFormat;\n\tvar DepthFormat = 1026;\n\tvar DepthStencilFormat = 1027;\n\tvar RGB_S3TC_DXT1_Format = 2001;\n\tvar RGBA_S3TC_DXT1_Format = 2002;\n\tvar RGBA_S3TC_DXT3_Format = 2003;\n\tvar RGBA_S3TC_DXT5_Format = 2004;\n\tvar RGB_PVRTC_4BPPV1_Format = 2100;\n\tvar RGB_PVRTC_2BPPV1_Format = 2101;\n\tvar RGBA_PVRTC_4BPPV1_Format = 2102;\n\tvar RGBA_PVRTC_2BPPV1_Format = 2103;\n\tvar RGB_ETC1_Format = 2151;\n\tvar LoopOnce = 2200;\n\tvar LoopRepeat = 2201;\n\tvar LoopPingPong = 2202;\n\tvar InterpolateDiscrete = 2300;\n\tvar InterpolateLinear = 2301;\n\tvar InterpolateSmooth = 2302;\n\tvar ZeroCurvatureEnding = 2400;\n\tvar ZeroSlopeEnding = 2401;\n\tvar WrapAroundEnding = 2402;\n\tvar TrianglesDrawMode = 0;\n\tvar TriangleStripDrawMode = 1;\n\tvar TriangleFanDrawMode = 2;\n\tvar LinearEncoding = 3000;\n\tvar sRGBEncoding = 3001;\n\tvar GammaEncoding = 3007;\n\tvar RGBEEncoding = 3002;\n\tvar LogLuvEncoding = 3003;\n\tvar RGBM7Encoding = 3004;\n\tvar RGBM16Encoding = 3005;\n\tvar RGBDEncoding = 3006;\n\tvar BasicDepthPacking = 3200;\n\tvar RGBADepthPacking = 3201;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar _Math = {\n\n\t\tDEG2RAD: Math.PI / 180,\n\t\tRAD2DEG: 180 / Math.PI,\n\n\t\tgenerateUUID: function () {\n\n\t\t\t// http://www.broofa.com/Tools/Math.uuid.htm\n\n\t\t\tvar chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split( '' );\n\t\t\tvar uuid = new Array( 36 );\n\t\t\tvar rnd = 0, r;\n\n\t\t\treturn function generateUUID() {\n\n\t\t\t\tfor ( var i = 0; i < 36; i ++ ) {\n\n\t\t\t\t\tif ( i === 8 || i === 13 || i === 18 || i === 23 ) {\n\n\t\t\t\t\t\tuuid[ i ] = '-';\n\n\t\t\t\t\t} else if ( i === 14 ) {\n\n\t\t\t\t\t\tuuid[ i ] = '4';\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( rnd <= 0x02 ) rnd = 0x2000000 + ( Math.random() * 0x1000000 ) | 0;\n\t\t\t\t\t\tr = rnd & 0xf;\n\t\t\t\t\t\trnd = rnd >> 4;\n\t\t\t\t\t\tuuid[ i ] = chars[ ( i === 19 ) ? ( r & 0x3 ) | 0x8 : r ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn uuid.join( '' );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclamp: function ( value, min, max ) {\n\n\t\t\treturn Math.max( min, Math.min( max, value ) );\n\n\t\t},\n\n\t\t// compute euclidian modulo of m % n\n\t\t// https://en.wikipedia.org/wiki/Modulo_operation\n\n\t\teuclideanModulo: function ( n, m ) {\n\n\t\t\treturn ( ( n % m ) + m ) % m;\n\n\t\t},\n\n\t\t// Linear mapping from range to range \n\n\t\tmapLinear: function ( x, a1, a2, b1, b2 ) {\n\n\t\t\treturn b1 + ( x - a1 ) * ( b2 - b1 ) / ( a2 - a1 );\n\n\t\t},\n\n\t\t// https://en.wikipedia.org/wiki/Linear_interpolation\n\n\t\tlerp: function ( x, y, t ) {\n\n\t\t\treturn ( 1 - t ) * x + t * y;\n\n\t\t},\n\n\t\t// http://en.wikipedia.org/wiki/Smoothstep\n\n\t\tsmoothstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * ( 3 - 2 * x );\n\n\t\t},\n\n\t\tsmootherstep: function ( x, min, max ) {\n\n\t\t\tif ( x <= min ) return 0;\n\t\t\tif ( x >= max ) return 1;\n\n\t\t\tx = ( x - min ) / ( max - min );\n\n\t\t\treturn x * x * x * ( x * ( x * 6 - 15 ) + 10 );\n\n\t\t},\n\n\t\trandom16: function () {\n\n\t\t\tconsole.warn( 'THREE.Math.random16() has been deprecated. Use Math.random() instead.' );\n\t\t\treturn Math.random();\n\n\t\t},\n\n\t\t// Random integer from interval\n\n\t\trandInt: function ( low, high ) {\n\n\t\t\treturn low + Math.floor( Math.random() * ( high - low + 1 ) );\n\n\t\t},\n\n\t\t// Random float from interval\n\n\t\trandFloat: function ( low, high ) {\n\n\t\t\treturn low + Math.random() * ( high - low );\n\n\t\t},\n\n\t\t// Random float from <-range/2, range/2> interval\n\n\t\trandFloatSpread: function ( range ) {\n\n\t\t\treturn range * ( 0.5 - Math.random() );\n\n\t\t},\n\n\t\tdegToRad: function ( degrees ) {\n\n\t\t\treturn degrees * _Math.DEG2RAD;\n\n\t\t},\n\n\t\tradToDeg: function ( radians ) {\n\n\t\t\treturn radians * _Math.RAD2DEG;\n\n\t\t},\n\n\t\tisPowerOfTwo: function ( value ) {\n\n\t\t\treturn ( value & ( value - 1 ) ) === 0 && value !== 0;\n\n\t\t},\n\n\t\tnearestPowerOfTwo: function ( value ) {\n\n\t\t\treturn Math.pow( 2, Math.round( Math.log( value ) / Math.LN2 ) );\n\n\t\t},\n\n\t\tnextPowerOfTwo: function ( value ) {\n\n\t\t\tvalue --;\n\t\t\tvalue |= value >> 1;\n\t\t\tvalue |= value >> 2;\n\t\t\tvalue |= value >> 4;\n\t\t\tvalue |= value >> 8;\n\t\t\tvalue |= value >> 16;\n\t\t\tvalue ++;\n\n\t\t\treturn value;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author egraether / http://egraether.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tfunction Vector2( x, y ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\n\t}\n\n\tVector2.prototype = {\n\n\t\tconstructor: Vector2,\n\n\t\tisVector2: true,\n\n\t\tget width() {\n\n\t\t\treturn this.x;\n\n\t\t},\n\n\t\tset width( value ) {\n\n\t\t\tthis.x = value;\n\n\t\t},\n\n\t\tget height() {\n\n\t\t\treturn this.y;\n\n\t\t},\n\n\t\tset height( value ) {\n\n\t\t\tthis.y = value;\n\n\t\t},\n\n\t\t//\n\n\t\tset: function ( x, y ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\t\t\t\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v ) {\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tif ( isFinite( scalar ) ) {\n\n\t\t\t\tthis.x *= scalar;\n\t\t\t\tthis.y *= scalar;\n\n\t\t\t} else {\n\n\t\t\t\tthis.x = 0;\n\t\t\t\tthis.y = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// This function assumes min < max, if this assumption isn't true it will not operate correctly\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min, max;\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tif ( min === undefined ) {\n\n\t\t\t\t\tmin = new Vector2();\n\t\t\t\t\tmax = new Vector2();\n\n\t\t\t\t}\n\n\t\t\t\tmin.set( minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y );\n\n\t\t},\n\n\t\tlengthManhattan: function() {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() );\n\n\t\t},\n\n\t\tangle: function () {\n\n\t\t\t// computes the angle in radians with respect to the positive x-axis\n\n\t\t\tvar angle = Math.atan2( this.y, this.x );\n\n\t\t\tif ( angle < 0 ) angle += 2 * Math.PI;\n\n\t\t\treturn angle;\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y;\n\t\t\treturn dx * dx + dy * dy;\n\n\t\t},\n\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.multiplyScalar( length / this.length() );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tindex = index * attribute.itemSize + offset;\n\n\t\t\tthis.x = attribute.array[ index ];\n\t\t\tthis.y = attribute.array[ index + 1 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateAround: function ( center, angle ) {\n\n\t\t\tvar c = Math.cos( angle ), s = Math.sin( angle );\n\n\t\t\tvar x = this.x - center.x;\n\t\t\tvar y = this.y - center.y;\n\n\t\t\tthis.x = x * c - y * s + center.x;\n\t\t\tthis.y = x * s + y * c + center.y;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t */\n\n\tfunction Texture( image, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\tObject.defineProperty( this, 'id', { value: TextureIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.sourceFile = '';\n\n\t\tthis.image = image !== undefined ? image : Texture.DEFAULT_IMAGE;\n\t\tthis.mipmaps = [];\n\n\t\tthis.mapping = mapping !== undefined ? mapping : Texture.DEFAULT_MAPPING;\n\n\t\tthis.wrapS = wrapS !== undefined ? wrapS : ClampToEdgeWrapping;\n\t\tthis.wrapT = wrapT !== undefined ? wrapT : ClampToEdgeWrapping;\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : LinearFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : LinearMipMapLinearFilter;\n\n\t\tthis.anisotropy = anisotropy !== undefined ? anisotropy : 1;\n\n\t\tthis.format = format !== undefined ? format : RGBAFormat;\n\t\tthis.type = type !== undefined ? type : UnsignedByteType;\n\n\t\tthis.offset = new Vector2( 0, 0 );\n\t\tthis.repeat = new Vector2( 1, 1 );\n\n\t\tthis.generateMipmaps = true;\n\t\tthis.premultiplyAlpha = false;\n\t\tthis.flipY = true;\n\t\tthis.unpackAlignment = 4;\t// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)\n\n\n\t\t// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.\n\t\t//\n\t\t// Also changing the encoding after already used by a Material will not automatically make the Material\n\t\t// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.\n\t\tthis.encoding = encoding !== undefined ? encoding : LinearEncoding;\n\n\t\tthis.version = 0;\n\t\tthis.onUpdate = null;\n\n\t}\n\n\tTexture.DEFAULT_IMAGE = undefined;\n\tTexture.DEFAULT_MAPPING = UVMapping;\n\n\tTexture.prototype = {\n\n\t\tconstructor: Texture,\n\n\t\tisTexture: true,\n\n\t\tset needsUpdate( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.image = source.image;\n\t\t\tthis.mipmaps = source.mipmaps.slice( 0 );\n\n\t\t\tthis.mapping = source.mapping;\n\n\t\t\tthis.wrapS = source.wrapS;\n\t\t\tthis.wrapT = source.wrapT;\n\n\t\t\tthis.magFilter = source.magFilter;\n\t\t\tthis.minFilter = source.minFilter;\n\n\t\t\tthis.anisotropy = source.anisotropy;\n\n\t\t\tthis.format = source.format;\n\t\t\tthis.type = source.type;\n\n\t\t\tthis.offset.copy( source.offset );\n\t\t\tthis.repeat.copy( source.repeat );\n\n\t\t\tthis.generateMipmaps = source.generateMipmaps;\n\t\t\tthis.premultiplyAlpha = source.premultiplyAlpha;\n\t\t\tthis.flipY = source.flipY;\n\t\t\tthis.unpackAlignment = source.unpackAlignment;\n\t\t\tthis.encoding = source.encoding;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tif ( meta.textures[ this.uuid ] !== undefined ) {\n\n\t\t\t\treturn meta.textures[ this.uuid ];\n\n\t\t\t}\n\n\t\t\tfunction getDataURL( image ) {\n\n\t\t\t\tvar canvas;\n\n\t\t\t\tif ( image.toDataURL !== undefined ) {\n\n\t\t\t\t\tcanvas = image;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tcanvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\t\tcanvas.width = image.width;\n\t\t\t\t\tcanvas.height = image.height;\n\n\t\t\t\t\tcanvas.getContext( '2d' ).drawImage( image, 0, 0, image.width, image.height );\n\n\t\t\t\t}\n\n\t\t\t\tif ( canvas.width > 2048 || canvas.height > 2048 ) {\n\n\t\t\t\t\treturn canvas.toDataURL( 'image/jpeg', 0.6 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn canvas.toDataURL( 'image/png' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar output = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.4,\n\t\t\t\t\ttype: 'Texture',\n\t\t\t\t\tgenerator: 'Texture.toJSON'\n\t\t\t\t},\n\n\t\t\t\tuuid: this.uuid,\n\t\t\t\tname: this.name,\n\n\t\t\t\tmapping: this.mapping,\n\n\t\t\t\trepeat: [ this.repeat.x, this.repeat.y ],\n\t\t\t\toffset: [ this.offset.x, this.offset.y ],\n\t\t\t\twrap: [ this.wrapS, this.wrapT ],\n\n\t\t\t\tminFilter: this.minFilter,\n\t\t\t\tmagFilter: this.magFilter,\n\t\t\t\tanisotropy: this.anisotropy,\n\n\t\t\t\tflipY: this.flipY\n\t\t\t};\n\n\t\t\tif ( this.image !== undefined ) {\n\n\t\t\t\t// TODO: Move to THREE.Image\n\n\t\t\t\tvar image = this.image;\n\n\t\t\t\tif ( image.uuid === undefined ) {\n\n\t\t\t\t\timage.uuid = _Math.generateUUID(); // UGH\n\n\t\t\t\t}\n\n\t\t\t\tif ( meta.images[ image.uuid ] === undefined ) {\n\n\t\t\t\t\tmeta.images[ image.uuid ] = {\n\t\t\t\t\t\tuuid: image.uuid,\n\t\t\t\t\t\turl: getDataURL( image )\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\toutput.image = image.uuid;\n\n\t\t\t}\n\n\t\t\tmeta.textures[ this.uuid ] = output;\n\n\t\t\treturn output;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t},\n\n\t\ttransformUv: function ( uv ) {\n\n\t\t\tif ( this.mapping !== UVMapping ) return;\n\n\t\t\tuv.multiply( this.repeat );\n\t\t\tuv.add( this.offset );\n\n\t\t\tif ( uv.x < 0 || uv.x > 1 ) {\n\n\t\t\t\tswitch ( this.wrapS ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.x = uv.x < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.x ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.x = Math.ceil( uv.x ) - uv.x;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.x = uv.x - Math.floor( uv.x );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( uv.y < 0 || uv.y > 1 ) {\n\n\t\t\t\tswitch ( this.wrapT ) {\n\n\t\t\t\t\tcase RepeatWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase ClampToEdgeWrapping:\n\n\t\t\t\t\t\tuv.y = uv.y < 0 ? 0 : 1;\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase MirroredRepeatWrapping:\n\n\t\t\t\t\t\tif ( Math.abs( Math.floor( uv.y ) % 2 ) === 1 ) {\n\n\t\t\t\t\t\t\tuv.y = Math.ceil( uv.y ) - uv.y;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tuv.y = uv.y - Math.floor( uv.y );\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.flipY ) {\n\n\t\t\t\tuv.y = 1 - uv.y;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\tObject.assign( Texture.prototype, EventDispatcher.prototype );\n\n\tvar count = 0;\n\tfunction TextureIdCount() { return count++; }\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector4( x, y, z, w ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\t\tthis.w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tVector4.prototype = {\n\n\t\tconstructor: Vector4,\n\n\t\tisVector4: true,\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\t\t\tthis.w = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( w ) {\n\n\t\t\tthis.w = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tcase 3: this.w = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\t\t\t\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tcase 3: return this.w;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z, this.w );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\t\t\tthis.w = ( v.w !== undefined ) ? v.w : 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\t\t\tthis.w += v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\t\t\tthis.w += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\t\t\tthis.w = a.w + b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\t\t\tthis.w += v.w * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\t\t\tthis.w -= v.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\t\t\tthis.w -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\t\t\tthis.w = a.w - b.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tif ( isFinite( scalar ) ) {\n\n\t\t\t\tthis.x *= scalar;\n\t\t\t\tthis.y *= scalar;\n\t\t\t\tthis.z *= scalar;\n\t\t\t\tthis.w *= scalar;\n\n\t\t\t} else {\n\n\t\t\t\tthis.x = 0;\n\t\t\t\tthis.y = 0;\n\t\t\t\tthis.z = 0;\n\t\t\t\tthis.w = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z, w = this.w;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] * w;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] * w;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] * w;\n\t\t\tthis.w = e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] * w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tsetAxisAngleFromQuaternion: function ( q ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm\n\n\t\t\t// q is assumed to be normalized\n\n\t\t\tthis.w = 2 * Math.acos( q.w );\n\n\t\t\tvar s = Math.sqrt( 1 - q.w * q.w );\n\n\t\t\tif ( s < 0.0001 ) {\n\n\t\t\t\t this.x = 1;\n\t\t\t\t this.y = 0;\n\t\t\t\t this.z = 0;\n\n\t\t\t} else {\n\n\t\t\t\t this.x = q.x / s;\n\t\t\t\t this.y = q.y / s;\n\t\t\t\t this.z = q.z / s;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetAxisAngleFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar angle, x, y, z,\t\t// variables for result\n\t\t\t\tepsilon = 0.01,\t\t// margin to allow for rounding errors\n\t\t\t\tepsilon2 = 0.1,\t\t// margin to distinguish between 0 and 180 degrees\n\n\t\t\t\tte = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\tif ( ( Math.abs( m12 - m21 ) < epsilon ) &&\n\t\t\t ( Math.abs( m13 - m31 ) < epsilon ) &&\n\t\t\t ( Math.abs( m23 - m32 ) < epsilon ) ) {\n\n\t\t\t\t// singularity found\n\t\t\t\t// first check for identity matrix which must have +1 for all terms\n\t\t\t\t// in leading diagonal and zero in other terms\n\n\t\t\t\tif ( ( Math.abs( m12 + m21 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m13 + m31 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m23 + m32 ) < epsilon2 ) &&\n\t\t\t\t ( Math.abs( m11 + m22 + m33 - 3 ) < epsilon2 ) ) {\n\n\t\t\t\t\t// this singularity is identity matrix so angle = 0\n\n\t\t\t\t\tthis.set( 1, 0, 0, 0 );\n\n\t\t\t\t\treturn this; // zero angle, arbitrary axis\n\n\t\t\t\t}\n\n\t\t\t\t// otherwise this singularity is angle = 180\n\n\t\t\t\tangle = Math.PI;\n\n\t\t\t\tvar xx = ( m11 + 1 ) / 2;\n\t\t\t\tvar yy = ( m22 + 1 ) / 2;\n\t\t\t\tvar zz = ( m33 + 1 ) / 2;\n\t\t\t\tvar xy = ( m12 + m21 ) / 4;\n\t\t\t\tvar xz = ( m13 + m31 ) / 4;\n\t\t\t\tvar yz = ( m23 + m32 ) / 4;\n\n\t\t\t\tif ( ( xx > yy ) && ( xx > zz ) ) {\n\n\t\t\t\t\t// m11 is the largest diagonal term\n\n\t\t\t\t\tif ( xx < epsilon ) {\n\n\t\t\t\t\t\tx = 0;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tx = Math.sqrt( xx );\n\t\t\t\t\t\ty = xy / x;\n\t\t\t\t\t\tz = xz / x;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( yy > zz ) {\n\n\t\t\t\t\t// m22 is the largest diagonal term\n\n\t\t\t\t\tif ( yy < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0;\n\t\t\t\t\t\tz = 0.707106781;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ty = Math.sqrt( yy );\n\t\t\t\t\t\tx = xy / y;\n\t\t\t\t\t\tz = yz / y;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// m33 is the largest diagonal term so base result on this\n\n\t\t\t\t\tif ( zz < epsilon ) {\n\n\t\t\t\t\t\tx = 0.707106781;\n\t\t\t\t\t\ty = 0.707106781;\n\t\t\t\t\t\tz = 0;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tz = Math.sqrt( zz );\n\t\t\t\t\t\tx = xz / z;\n\t\t\t\t\t\ty = yz / z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.set( x, y, z, angle );\n\n\t\t\t\treturn this; // return 180 deg rotation\n\n\t\t\t}\n\n\t\t\t// as we have reached here there are no singularities so we can handle normally\n\n\t\t\tvar s = Math.sqrt( ( m32 - m23 ) * ( m32 - m23 ) +\n\t\t\t ( m13 - m31 ) * ( m13 - m31 ) +\n\t\t\t ( m21 - m12 ) * ( m21 - m12 ) ); // used to normalize\n\n\t\t\tif ( Math.abs( s ) < 0.001 ) s = 1;\n\n\t\t\t// prevent divide by zero, should not happen if matrix is orthogonal and should be\n\t\t\t// caught by singularity test above, but I've left it in just in case\n\n\t\t\tthis.x = ( m32 - m23 ) / s;\n\t\t\tthis.y = ( m13 - m31 ) / s;\n\t\t\tthis.z = ( m21 - m12 ) / s;\n\t\t\tthis.w = Math.acos( ( m11 + m22 + m33 - 1 ) / 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\t\t\tthis.w = Math.min( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\t\t\tthis.w = Math.max( this.w, v.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// This function assumes min < max, if this assumption isn't true it will not operate correctly\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\t\t\tthis.w = Math.max( min.w, Math.min( max.w, this.w ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min, max;\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tif ( min === undefined ) {\n\n\t\t\t\t\tmin = new Vector4();\n\t\t\t\t\tmax = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tmin.set( minVal, minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\t\t\tthis.w = Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\t\t\tthis.w = Math.ceil( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\t\t\tthis.w = Math.round( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\t\t\tthis.w = ( this.w < 0 ) ? Math.ceil( this.w ) : Math.floor( this.w );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\t\t\tthis.w = - this.w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z + this.w * v.w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z + this.w * this.w );\n\n\t\t},\n\n\t\tlengthManhattan: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z ) + Math.abs( this.w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.multiplyScalar( length / this.length() );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\t\t\tthis.w += ( v.w - this.w ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) && ( v.w === this.w ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\t\t\tthis.w = array[ offset + 3 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\t\t\tarray[ offset + 3 ] = this.w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tindex = index * attribute.itemSize + offset;\n\n\t\t\tthis.x = attribute.array[ index ];\n\t\t\tthis.y = attribute.array[ index + 1 ];\n\t\t\tthis.z = attribute.array[ index + 2 ];\n\t\t\tthis.w = attribute.array[ index + 3 ];\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author szimek / https://github.com/szimek/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author Marius Kintel / https://github.com/kintel\n\t */\n\n\t/*\n\t In options, we can specify:\n\t * Texture parameters for an auto-generated target texture\n\t * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers\n\t*/\n\tfunction WebGLRenderTarget( width, height, options ) {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.width = width;\n\t\tthis.height = height;\n\n\t\tthis.scissor = new Vector4( 0, 0, width, height );\n\t\tthis.scissorTest = false;\n\n\t\tthis.viewport = new Vector4( 0, 0, width, height );\n\n\t\toptions = options || {};\n\n\t\tif ( options.minFilter === undefined ) options.minFilter = LinearFilter;\n\n\t\tthis.texture = new Texture( undefined, undefined, options.wrapS, options.wrapT, options.magFilter, options.minFilter, options.format, options.type, options.anisotropy, options.encoding );\n\n\t\tthis.depthBuffer = options.depthBuffer !== undefined ? options.depthBuffer : true;\n\t\tthis.stencilBuffer = options.stencilBuffer !== undefined ? options.stencilBuffer : true;\n\t\tthis.depthTexture = options.depthTexture !== undefined ? options.depthTexture : null;\n\n\t}\n\n\tObject.assign( WebGLRenderTarget.prototype, EventDispatcher.prototype, {\n\n\t\tisWebGLRenderTarget: true,\n\n\t\tsetSize: function ( width, height ) {\n\n\t\t\tif ( this.width !== width || this.height !== height ) {\n\n\t\t\t\tthis.width = width;\n\t\t\t\tthis.height = height;\n\n\t\t\t\tthis.dispose();\n\n\t\t\t}\n\n\t\t\tthis.viewport.set( 0, 0, width, height );\n\t\t\tthis.scissor.set( 0, 0, width, height );\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.width = source.width;\n\t\t\tthis.height = source.height;\n\n\t\t\tthis.viewport.copy( source.viewport );\n\n\t\t\tthis.texture = source.texture.clone();\n\n\t\t\tthis.depthBuffer = source.depthBuffer;\n\t\t\tthis.stencilBuffer = source.stencilBuffer;\n\t\t\tthis.depthTexture = source.depthTexture;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com\n\t */\n\n\tfunction WebGLRenderTargetCube( width, height, options ) {\n\n\t\tWebGLRenderTarget.call( this, width, height, options );\n\n\t\tthis.activeCubeFace = 0; // PX 0, NX 1, PY 2, NY 3, PZ 4, NZ 5\n\t\tthis.activeMipMapLevel = 0;\n\n\t}\n\n\tWebGLRenderTargetCube.prototype = Object.create( WebGLRenderTarget.prototype );\n\tWebGLRenderTargetCube.prototype.constructor = WebGLRenderTargetCube;\n\n\tWebGLRenderTargetCube.prototype.isWebGLRenderTargetCube = true;\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Quaternion( x, y, z, w ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._w = ( w !== undefined ) ? w : 1;\n\n\t}\n\n\tQuaternion.prototype = {\n\n\t\tconstructor: Quaternion,\n\n\t\tget x () {\n\n\t\t\treturn this._x;\n\n\t\t},\n\n\t\tset x ( value ) {\n\n\t\t\tthis._x = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget y () {\n\n\t\t\treturn this._y;\n\n\t\t},\n\n\t\tset y ( value ) {\n\n\t\t\tthis._y = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget z () {\n\n\t\t\treturn this._z;\n\n\t\t},\n\n\t\tset z ( value ) {\n\n\t\t\tthis._z = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget w () {\n\n\t\t\treturn this._w;\n\n\t\t},\n\n\t\tset w ( value ) {\n\n\t\t\tthis._w = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tset: function ( x, y, z, w ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._w = w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._w );\n\n\t\t},\n\n\t\tcopy: function ( quaternion ) {\n\n\t\t\tthis._x = quaternion.x;\n\t\t\tthis._y = quaternion.y;\n\t\t\tthis._z = quaternion.z;\n\t\t\tthis._w = quaternion.w;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromEuler: function ( euler, update ) {\n\n\t\t\tif ( (euler && euler.isEuler) === false ) {\n\n\t\t\t\tthrow new Error( 'THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\t// http://www.mathworks.com/matlabcentral/fileexchange/\n\t\t\t// \t20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/\n\t\t\t//\tcontent/SpinCalc.m\n\n\t\t\tvar c1 = Math.cos( euler._x / 2 );\n\t\t\tvar c2 = Math.cos( euler._y / 2 );\n\t\t\tvar c3 = Math.cos( euler._z / 2 );\n\t\t\tvar s1 = Math.sin( euler._x / 2 );\n\t\t\tvar s2 = Math.sin( euler._y / 2 );\n\t\t\tvar s3 = Math.sin( euler._z / 2 );\n\n\t\t\tvar order = euler.order;\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 + c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 + s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 - s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 - s1 * s2 * s3;\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._x = s1 * c2 * c3 - c1 * s2 * s3;\n\t\t\t\tthis._y = c1 * s2 * c3 - s1 * c2 * s3;\n\t\t\t\tthis._z = c1 * c2 * s3 + s1 * s2 * c3;\n\t\t\t\tthis._w = c1 * c2 * c3 + s1 * s2 * s3;\n\n\t\t\t}\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tvar halfAngle = angle / 2, s = Math.sin( halfAngle );\n\n\t\t\tthis._x = axis.x * s;\n\t\t\tthis._y = axis.y * s;\n\t\t\tthis._z = axis.z * s;\n\t\t\tthis._w = Math.cos( halfAngle );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m ) {\n\n\t\t\t// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements,\n\n\t\t\t\tm11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ],\n\t\t\t\tm21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ],\n\t\t\t\tm31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ],\n\n\t\t\t\ttrace = m11 + m22 + m33,\n\t\t\t\ts;\n\n\t\t\tif ( trace > 0 ) {\n\n\t\t\t\ts = 0.5 / Math.sqrt( trace + 1.0 );\n\n\t\t\t\tthis._w = 0.25 / s;\n\t\t\t\tthis._x = ( m32 - m23 ) * s;\n\t\t\t\tthis._y = ( m13 - m31 ) * s;\n\t\t\t\tthis._z = ( m21 - m12 ) * s;\n\n\t\t\t} else if ( m11 > m22 && m11 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m11 - m22 - m33 );\n\n\t\t\t\tthis._w = ( m32 - m23 ) / s;\n\t\t\t\tthis._x = 0.25 * s;\n\t\t\t\tthis._y = ( m12 + m21 ) / s;\n\t\t\t\tthis._z = ( m13 + m31 ) / s;\n\n\t\t\t} else if ( m22 > m33 ) {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m22 - m11 - m33 );\n\n\t\t\t\tthis._w = ( m13 - m31 ) / s;\n\t\t\t\tthis._x = ( m12 + m21 ) / s;\n\t\t\t\tthis._y = 0.25 * s;\n\t\t\t\tthis._z = ( m23 + m32 ) / s;\n\n\t\t\t} else {\n\n\t\t\t\ts = 2.0 * Math.sqrt( 1.0 + m33 - m11 - m22 );\n\n\t\t\t\tthis._w = ( m21 - m12 ) / s;\n\t\t\t\tthis._x = ( m13 + m31 ) / s;\n\t\t\t\tthis._y = ( m23 + m32 ) / s;\n\t\t\t\tthis._z = 0.25 * s;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromUnitVectors: function () {\n\n\t\t\t// http://lolengine.net/blog/2014/02/24/quaternion-from-two-vectors-final\n\n\t\t\t// assumes direction vectors vFrom and vTo are normalized\n\n\t\t\tvar v1, r;\n\n\t\t\tvar EPS = 0.000001;\n\n\t\t\treturn function setFromUnitVectors( vFrom, vTo ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\tr = vFrom.dot( vTo ) + 1;\n\n\t\t\t\tif ( r < EPS ) {\n\n\t\t\t\t\tr = 0;\n\n\t\t\t\t\tif ( Math.abs( vFrom.x ) > Math.abs( vFrom.z ) ) {\n\n\t\t\t\t\t\tv1.set( - vFrom.y, vFrom.x, 0 );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv1.set( 0, - vFrom.z, vFrom.y );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tv1.crossVectors( vFrom, vTo );\n\n\t\t\t\t}\n\n\t\t\t\tthis._x = v1.x;\n\t\t\t\tthis._y = v1.y;\n\t\t\t\tthis._z = v1.z;\n\t\t\t\tthis._w = r;\n\n\t\t\t\treturn this.normalize();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tinverse: function () {\n\n\t\t\treturn this.conjugate().normalize();\n\n\t\t},\n\n\t\tconjugate: function () {\n\n\t\t\tthis._x *= - 1;\n\t\t\tthis._y *= - 1;\n\t\t\tthis._z *= - 1;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this._x * v._x + this._y * v._y + this._z * v._z + this._w * v._w;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this._x * this._x + this._y * this._y + this._z * this._z + this._w * this._w );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\tvar l = this.length();\n\n\t\t\tif ( l === 0 ) {\n\n\t\t\t\tthis._x = 0;\n\t\t\t\tthis._y = 0;\n\t\t\t\tthis._z = 0;\n\t\t\t\tthis._w = 1;\n\n\t\t\t} else {\n\n\t\t\t\tl = 1 / l;\n\n\t\t\t\tthis._x = this._x * l;\n\t\t\t\tthis._y = this._y * l;\n\t\t\t\tthis._z = this._z * l;\n\t\t\t\tthis._w = this._w * l;\n\n\t\t\t}\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( q, p ) {\n\n\t\t\tif ( p !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.' );\n\t\t\t\treturn this.multiplyQuaternions( q, p );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyQuaternions( this, q );\n\n\t\t},\n\n\t\tpremultiply: function ( q ) {\n\n\t\t\treturn this.multiplyQuaternions( q, this );\n\n\t\t},\n\n\t\tmultiplyQuaternions: function ( a, b ) {\n\n\t\t\t// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm\n\n\t\t\tvar qax = a._x, qay = a._y, qaz = a._z, qaw = a._w;\n\t\t\tvar qbx = b._x, qby = b._y, qbz = b._z, qbw = b._w;\n\n\t\t\tthis._x = qax * qbw + qaw * qbx + qay * qbz - qaz * qby;\n\t\t\tthis._y = qay * qbw + qaw * qby + qaz * qbx - qax * qbz;\n\t\t\tthis._z = qaz * qbw + qaw * qbz + qax * qby - qay * qbx;\n\t\t\tthis._w = qaw * qbw - qax * qbx - qay * qby - qaz * qbz;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tslerp: function ( qb, t ) {\n\n\t\t\tif ( t === 0 ) return this;\n\t\t\tif ( t === 1 ) return this.copy( qb );\n\n\t\t\tvar x = this._x, y = this._y, z = this._z, w = this._w;\n\n\t\t\t// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/\n\n\t\t\tvar cosHalfTheta = w * qb._w + x * qb._x + y * qb._y + z * qb._z;\n\n\t\t\tif ( cosHalfTheta < 0 ) {\n\n\t\t\t\tthis._w = - qb._w;\n\t\t\t\tthis._x = - qb._x;\n\t\t\t\tthis._y = - qb._y;\n\t\t\t\tthis._z = - qb._z;\n\n\t\t\t\tcosHalfTheta = - cosHalfTheta;\n\n\t\t\t} else {\n\n\t\t\t\tthis.copy( qb );\n\n\t\t\t}\n\n\t\t\tif ( cosHalfTheta >= 1.0 ) {\n\n\t\t\t\tthis._w = w;\n\t\t\t\tthis._x = x;\n\t\t\t\tthis._y = y;\n\t\t\t\tthis._z = z;\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar sinHalfTheta = Math.sqrt( 1.0 - cosHalfTheta * cosHalfTheta );\n\n\t\t\tif ( Math.abs( sinHalfTheta ) < 0.001 ) {\n\n\t\t\t\tthis._w = 0.5 * ( w + this._w );\n\t\t\t\tthis._x = 0.5 * ( x + this._x );\n\t\t\t\tthis._y = 0.5 * ( y + this._y );\n\t\t\t\tthis._z = 0.5 * ( z + this._z );\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar halfTheta = Math.atan2( sinHalfTheta, cosHalfTheta );\n\t\t\tvar ratioA = Math.sin( ( 1 - t ) * halfTheta ) / sinHalfTheta,\n\t\t\tratioB = Math.sin( t * halfTheta ) / sinHalfTheta;\n\n\t\t\tthis._w = ( w * ratioA + this._w * ratioB );\n\t\t\tthis._x = ( x * ratioA + this._x * ratioB );\n\t\t\tthis._y = ( y * ratioA + this._y * ratioB );\n\t\t\tthis._z = ( z * ratioA + this._z * ratioB );\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( quaternion ) {\n\n\t\t\treturn ( quaternion._x === this._x ) && ( quaternion._y === this._y ) && ( quaternion._z === this._z ) && ( quaternion._w === this._w );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis._x = array[ offset ];\n\t\t\tthis._y = array[ offset + 1 ];\n\t\t\tthis._z = array[ offset + 2 ];\n\t\t\tthis._w = array[ offset + 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._w;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t};\n\n\tObject.assign( Quaternion, {\n\n\t\tslerp: function( qa, qb, qm, t ) {\n\n\t\t\treturn qm.copy( qa ).slerp( qb, t );\n\n\t\t},\n\n\t\tslerpFlat: function(\n\t\t\t\tdst, dstOffset, src0, srcOffset0, src1, srcOffset1, t ) {\n\n\t\t\t// fuzz-free, array-based Quaternion SLERP operation\n\n\t\t\tvar x0 = src0[ srcOffset0 + 0 ],\n\t\t\t\ty0 = src0[ srcOffset0 + 1 ],\n\t\t\t\tz0 = src0[ srcOffset0 + 2 ],\n\t\t\t\tw0 = src0[ srcOffset0 + 3 ],\n\n\t\t\t\tx1 = src1[ srcOffset1 + 0 ],\n\t\t\t\ty1 = src1[ srcOffset1 + 1 ],\n\t\t\t\tz1 = src1[ srcOffset1 + 2 ],\n\t\t\t\tw1 = src1[ srcOffset1 + 3 ];\n\n\t\t\tif ( w0 !== w1 || x0 !== x1 || y0 !== y1 || z0 !== z1 ) {\n\n\t\t\t\tvar s = 1 - t,\n\n\t\t\t\t\tcos = x0 * x1 + y0 * y1 + z0 * z1 + w0 * w1,\n\n\t\t\t\t\tdir = ( cos >= 0 ? 1 : - 1 ),\n\t\t\t\t\tsqrSin = 1 - cos * cos;\n\n\t\t\t\t// Skip the Slerp for tiny steps to avoid numeric problems:\n\t\t\t\tif ( sqrSin > Number.EPSILON ) {\n\n\t\t\t\t\tvar sin = Math.sqrt( sqrSin ),\n\t\t\t\t\t\tlen = Math.atan2( sin, cos * dir );\n\n\t\t\t\t\ts = Math.sin( s * len ) / sin;\n\t\t\t\t\tt = Math.sin( t * len ) / sin;\n\n\t\t\t\t}\n\n\t\t\t\tvar tDir = t * dir;\n\n\t\t\t\tx0 = x0 * s + x1 * tDir;\n\t\t\t\ty0 = y0 * s + y1 * tDir;\n\t\t\t\tz0 = z0 * s + z1 * tDir;\n\t\t\t\tw0 = w0 * s + w1 * tDir;\n\n\t\t\t\t// Normalize in case we just did a lerp:\n\t\t\t\tif ( s === 1 - t ) {\n\n\t\t\t\t\tvar f = 1 / Math.sqrt( x0 * x0 + y0 * y0 + z0 * z0 + w0 * w0 );\n\n\t\t\t\t\tx0 *= f;\n\t\t\t\t\ty0 *= f;\n\t\t\t\t\tz0 *= f;\n\t\t\t\t\tw0 *= f;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tdst[ dstOffset ] = x0;\n\t\t\tdst[ dstOffset + 1 ] = y0;\n\t\t\tdst[ dstOffset + 2 ] = z0;\n\t\t\tdst[ dstOffset + 3 ] = w0;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author *kile / http://kile.stravaganza.org/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author egraether / http://egraether.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Vector3( x, y, z ) {\n\n\t\tthis.x = x || 0;\n\t\tthis.y = y || 0;\n\t\tthis.z = z || 0;\n\n\t}\n\n\tVector3.prototype = {\n\n\t\tconstructor: Vector3,\n\n\t\tisVector3: true,\n\n\t\tset: function ( x, y, z ) {\n\n\t\t\tthis.x = x;\n\t\t\tthis.y = y;\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.x = scalar;\n\t\t\tthis.y = scalar;\n\t\t\tthis.z = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetX: function ( x ) {\n\n\t\t\tthis.x = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( y ) {\n\n\t\t\tthis.y = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( z ) {\n\n\t\t\tthis.z = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponent: function ( index, value ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: this.x = value; break;\n\t\t\t\tcase 1: this.y = value; break;\n\t\t\t\tcase 2: this.z = value; break;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\t\t\t\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetComponent: function ( index ) {\n\n\t\t\tswitch ( index ) {\n\n\t\t\t\tcase 0: return this.x;\n\t\t\t\tcase 1: return this.y;\n\t\t\t\tcase 2: return this.z;\n\t\t\t\tdefault: throw new Error( 'index is out of range: ' + index );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.x, this.y, this.z );\n\n\t\t},\n\n\t\tcopy: function ( v ) {\n\n\t\t\tthis.x = v.x;\n\t\t\tthis.y = v.y;\n\t\t\tthis.z = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.' );\n\t\t\t\treturn this.addVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x += v.x;\n\t\t\tthis.y += v.y;\n\t\t\tthis.z += v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.x += s;\n\t\t\tthis.y += s;\n\t\t\tthis.z += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x + b.x;\n\t\t\tthis.y = a.y + b.y;\n\t\t\tthis.z = a.z + b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScaledVector: function ( v, s ) {\n\n\t\t\tthis.x += v.x * s;\n\t\t\tthis.y += v.y * s;\n\t\t\tthis.z += v.z * s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.' );\n\t\t\t\treturn this.subVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x -= v.x;\n\t\t\tthis.y -= v.y;\n\t\t\tthis.z -= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubScalar: function ( s ) {\n\n\t\t\tthis.x -= s;\n\t\t\tthis.y -= s;\n\t\t\tthis.z -= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsubVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x - b.x;\n\t\t\tthis.y = a.y - b.y;\n\t\t\tthis.z = a.z - b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.' );\n\t\t\t\treturn this.multiplyVectors( v, w );\n\n\t\t\t}\n\n\t\t\tthis.x *= v.x;\n\t\t\tthis.y *= v.y;\n\t\t\tthis.z *= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( scalar ) {\n\n\t\t\tif ( isFinite( scalar ) ) {\n\n\t\t\t\tthis.x *= scalar;\n\t\t\t\tthis.y *= scalar;\n\t\t\t\tthis.z *= scalar;\n\n\t\t\t} else {\n\n\t\t\t\tthis.x = 0;\n\t\t\t\tthis.y = 0;\n\t\t\t\tthis.z = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyVectors: function ( a, b ) {\n\n\t\t\tthis.x = a.x * b.x;\n\t\t\tthis.y = a.y * b.y;\n\t\t\tthis.z = a.z * b.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyEuler: function () {\n\n\t\t\tvar quaternion;\n\n\t\t\treturn function applyEuler( euler ) {\n\n\t\t\t\tif ( (euler && euler.isEuler) === false ) {\n\n\t\t\t\t\tconsole.error( 'THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t\t}\n\n\t\t\t\tif ( quaternion === undefined ) quaternion = new Quaternion();\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromEuler( euler ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyAxisAngle: function () {\n\n\t\t\tvar quaternion;\n\n\t\t\treturn function applyAxisAngle( axis, angle ) {\n\n\t\t\t\tif ( quaternion === undefined ) quaternion = new Quaternion();\n\n\t\t\t\treturn this.applyQuaternion( quaternion.setFromAxisAngle( axis, angle ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix3: function ( m ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 3 ] * y + e[ 6 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 4 ] * y + e[ 7 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 5 ] * y + e[ 8 ] * z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( m ) {\n\n\t\t\t// input: THREE.Matrix4 affine matrix\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ];\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ];\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyProjection: function ( m ) {\n\n\t\t\t// input: THREE.Matrix4 projection matrix\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\t\t\tvar d = 1 / ( e[ 3 ] * x + e[ 7 ] * y + e[ 11 ] * z + e[ 15 ] ); // perspective divide\n\n\t\t\tthis.x = ( e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z + e[ 12 ] ) * d;\n\t\t\tthis.y = ( e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z + e[ 13 ] ) * d;\n\t\t\tthis.z = ( e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z + e[ 14 ] ) * d;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyQuaternion: function ( q ) {\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar qx = q.x, qy = q.y, qz = q.z, qw = q.w;\n\n\t\t\t// calculate quat * vector\n\n\t\t\tvar ix = qw * x + qy * z - qz * y;\n\t\t\tvar iy = qw * y + qz * x - qx * z;\n\t\t\tvar iz = qw * z + qx * y - qy * x;\n\t\t\tvar iw = - qx * x - qy * y - qz * z;\n\n\t\t\t// calculate result * inverse quat\n\n\t\t\tthis.x = ix * qw + iw * - qx + iy * - qz - iz * - qy;\n\t\t\tthis.y = iy * qw + iw * - qy + iz * - qx - ix * - qz;\n\t\t\tthis.z = iz * qw + iw * - qz + ix * - qy - iy * - qx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tproject: function () {\n\n\t\t\tvar matrix;\n\n\t\t\treturn function project( camera ) {\n\n\t\t\t\tif ( matrix === undefined ) matrix = new Matrix4();\n\n\t\t\t\tmatrix.multiplyMatrices( camera.projectionMatrix, matrix.getInverse( camera.matrixWorld ) );\n\t\t\t\treturn this.applyProjection( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tunproject: function () {\n\n\t\t\tvar matrix;\n\n\t\t\treturn function unproject( camera ) {\n\n\t\t\t\tif ( matrix === undefined ) matrix = new Matrix4();\n\n\t\t\t\tmatrix.multiplyMatrices( camera.matrixWorld, matrix.getInverse( camera.projectionMatrix ) );\n\t\t\t\treturn this.applyProjection( matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttransformDirection: function ( m ) {\n\n\t\t\t// input: THREE.Matrix4 affine matrix\n\t\t\t// vector interpreted as a direction\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\t\t\tvar e = m.elements;\n\n\t\t\tthis.x = e[ 0 ] * x + e[ 4 ] * y + e[ 8 ] * z;\n\t\t\tthis.y = e[ 1 ] * x + e[ 5 ] * y + e[ 9 ] * z;\n\t\t\tthis.z = e[ 2 ] * x + e[ 6 ] * y + e[ 10 ] * z;\n\n\t\t\treturn this.normalize();\n\n\t\t},\n\n\t\tdivide: function ( v ) {\n\n\t\t\tthis.x /= v.x;\n\t\t\tthis.y /= v.y;\n\t\t\tthis.z /= v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdivideScalar: function ( scalar ) {\n\n\t\t\treturn this.multiplyScalar( 1 / scalar );\n\n\t\t},\n\n\t\tmin: function ( v ) {\n\n\t\t\tthis.x = Math.min( this.x, v.x );\n\t\t\tthis.y = Math.min( this.y, v.y );\n\t\t\tthis.z = Math.min( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmax: function ( v ) {\n\n\t\t\tthis.x = Math.max( this.x, v.x );\n\t\t\tthis.y = Math.max( this.y, v.y );\n\t\t\tthis.z = Math.max( this.z, v.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclamp: function ( min, max ) {\n\n\t\t\t// This function assumes min < max, if this assumption isn't true it will not operate correctly\n\n\t\t\tthis.x = Math.max( min.x, Math.min( max.x, this.x ) );\n\t\t\tthis.y = Math.max( min.y, Math.min( max.y, this.y ) );\n\t\t\tthis.z = Math.max( min.z, Math.min( max.z, this.z ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclampScalar: function () {\n\n\t\t\tvar min, max;\n\n\t\t\treturn function clampScalar( minVal, maxVal ) {\n\n\t\t\t\tif ( min === undefined ) {\n\n\t\t\t\t\tmin = new Vector3();\n\t\t\t\t\tmax = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tmin.set( minVal, minVal, minVal );\n\t\t\t\tmax.set( maxVal, maxVal, maxVal );\n\n\t\t\t\treturn this.clamp( min, max );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclampLength: function ( min, max ) {\n\n\t\t\tvar length = this.length();\n\n\t\t\treturn this.multiplyScalar( Math.max( min, Math.min( max, length ) ) / length );\n\n\t\t},\n\n\t\tfloor: function () {\n\n\t\t\tthis.x = Math.floor( this.x );\n\t\t\tthis.y = Math.floor( this.y );\n\t\t\tthis.z = Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tceil: function () {\n\n\t\t\tthis.x = Math.ceil( this.x );\n\t\t\tthis.y = Math.ceil( this.y );\n\t\t\tthis.z = Math.ceil( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tround: function () {\n\n\t\t\tthis.x = Math.round( this.x );\n\t\t\tthis.y = Math.round( this.y );\n\t\t\tthis.z = Math.round( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\troundToZero: function () {\n\n\t\t\tthis.x = ( this.x < 0 ) ? Math.ceil( this.x ) : Math.floor( this.x );\n\t\t\tthis.y = ( this.y < 0 ) ? Math.ceil( this.y ) : Math.floor( this.y );\n\t\t\tthis.z = ( this.z < 0 ) ? Math.ceil( this.z ) : Math.floor( this.z );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.x = - this.x;\n\t\t\tthis.y = - this.y;\n\t\t\tthis.z = - this.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdot: function ( v ) {\n\n\t\t\treturn this.x * v.x + this.y * v.y + this.z * v.z;\n\n\t\t},\n\n\t\tlengthSq: function () {\n\n\t\t\treturn this.x * this.x + this.y * this.y + this.z * this.z;\n\n\t\t},\n\n\t\tlength: function () {\n\n\t\t\treturn Math.sqrt( this.x * this.x + this.y * this.y + this.z * this.z );\n\n\t\t},\n\n\t\tlengthManhattan: function () {\n\n\t\t\treturn Math.abs( this.x ) + Math.abs( this.y ) + Math.abs( this.z );\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\treturn this.divideScalar( this.length() );\n\n\t\t},\n\n\t\tsetLength: function ( length ) {\n\n\t\t\treturn this.multiplyScalar( length / this.length() );\n\n\t\t},\n\n\t\tlerp: function ( v, alpha ) {\n\n\t\t\tthis.x += ( v.x - this.x ) * alpha;\n\t\t\tthis.y += ( v.y - this.y ) * alpha;\n\t\t\tthis.z += ( v.z - this.z ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerpVectors: function ( v1, v2, alpha ) {\n\n\t\t\treturn this.subVectors( v2, v1 ).multiplyScalar( alpha ).add( v1 );\n\n\t\t},\n\n\t\tcross: function ( v, w ) {\n\n\t\t\tif ( w !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.' );\n\t\t\t\treturn this.crossVectors( v, w );\n\n\t\t\t}\n\n\t\t\tvar x = this.x, y = this.y, z = this.z;\n\n\t\t\tthis.x = y * v.z - z * v.y;\n\t\t\tthis.y = z * v.x - x * v.z;\n\t\t\tthis.z = x * v.y - y * v.x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcrossVectors: function ( a, b ) {\n\n\t\t\tvar ax = a.x, ay = a.y, az = a.z;\n\t\t\tvar bx = b.x, by = b.y, bz = b.z;\n\n\t\t\tthis.x = ay * bz - az * by;\n\t\t\tthis.y = az * bx - ax * bz;\n\t\t\tthis.z = ax * by - ay * bx;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tprojectOnVector: function ( vector ) {\n\n\t\t\tvar scalar = vector.dot( this ) / vector.lengthSq();\n\n\t\t\treturn this.copy( vector ).multiplyScalar( scalar );\n\n\t\t},\n\n\t\tprojectOnPlane: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function projectOnPlane( planeNormal ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\tv1.copy( this ).projectOnVector( planeNormal );\n\n\t\t\t\treturn this.sub( v1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\treflect: function () {\n\n\t\t\t// reflect incident vector off plane orthogonal to normal\n\t\t\t// normal is assumed to have unit length\n\n\t\t\tvar v1;\n\n\t\t\treturn function reflect( normal ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\treturn this.sub( v1.copy( normal ).multiplyScalar( 2 * this.dot( normal ) ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tangleTo: function ( v ) {\n\n\t\t\tvar theta = this.dot( v ) / ( Math.sqrt( this.lengthSq() * v.lengthSq() ) );\n\n\t\t\t// clamp, to handle numerical problems\n\n\t\t\treturn Math.acos( _Math.clamp( theta, - 1, 1 ) );\n\n\t\t},\n\n\t\tdistanceTo: function ( v ) {\n\n\t\t\treturn Math.sqrt( this.distanceToSquared( v ) );\n\n\t\t},\n\n\t\tdistanceToSquared: function ( v ) {\n\n\t\t\tvar dx = this.x - v.x, dy = this.y - v.y, dz = this.z - v.z;\n\n\t\t\treturn dx * dx + dy * dy + dz * dz;\n\n\t\t},\n\n\t\tdistanceToManhattan: function ( v ) {\n\n\t\t\treturn Math.abs( this.x - v.x ) + Math.abs( this.y - v.y ) + Math.abs( this.z - v.z );\n\n\t\t},\n\n\t\tsetFromSpherical: function( s ) {\n\n\t\t\tvar sinPhiRadius = Math.sin( s.phi ) * s.radius;\n\n\t\t\tthis.x = sinPhiRadius * Math.sin( s.theta );\n\t\t\tthis.y = Math.cos( s.phi ) * s.radius;\n\t\t\tthis.z = sinPhiRadius * Math.cos( s.theta );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixPosition: function ( m ) {\n\n\t\t\treturn this.setFromMatrixColumn( m, 3 );\n\n\t\t},\n\n\t\tsetFromMatrixScale: function ( m ) {\n\n\t\t\tvar sx = this.setFromMatrixColumn( m, 0 ).length();\n\t\t\tvar sy = this.setFromMatrixColumn( m, 1 ).length();\n\t\t\tvar sz = this.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\tthis.x = sx;\n\t\t\tthis.y = sy;\n\t\t\tthis.z = sz;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrixColumn: function ( m, index ) {\n\n\t\t\tif ( typeof m === 'number' ) {\n\n\t\t\t\tconsole.warn( 'THREE.Vector3: setFromMatrixColumn now expects ( matrix, index ).' );\n\t\t\t\tvar temp = m;\n\t\t\t\tm = index;\n\t\t\t\tindex = temp;\n\n\t\t\t}\n\n\t\t\treturn this.fromArray( m.elements, index * 4 );\n\n\t\t},\n\n\t\tequals: function ( v ) {\n\n\t\t\treturn ( ( v.x === this.x ) && ( v.y === this.y ) && ( v.z === this.z ) );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.x = array[ offset ];\n\t\t\tthis.y = array[ offset + 1 ];\n\t\t\tthis.z = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.x;\n\t\t\tarray[ offset + 1 ] = this.y;\n\t\t\tarray[ offset + 2 ] = this.z;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tfromAttribute: function ( attribute, index, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tindex = index * attribute.itemSize + offset;\n\n\t\t\tthis.x = attribute.array[ index ];\n\t\t\tthis.y = attribute.array[ index + 1 ];\n\t\t\tthis.z = attribute.array[ index + 2 ];\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author philogb / http://blog.thejit.org/\n\t * @author jordi_ros / http://plattsoft.com\n\t * @author D1plo1d / http://github.com/D1plo1d\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author timknip / http://www.floorplanner.com/\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Matrix4() {\n\n\t\tthis.elements = new Float32Array( [\n\n\t\t\t1, 0, 0, 0,\n\t\t\t0, 1, 0, 0,\n\t\t\t0, 0, 1, 0,\n\t\t\t0, 0, 0, 1\n\n\t\t] );\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tMatrix4.prototype = {\n\n\t\tconstructor: Matrix4,\n\n\t\tisMatrix4: true,\n\n\t\tset: function ( n11, n12, n13, n14, n21, n22, n23, n24, n31, n32, n33, n34, n41, n42, n43, n44 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 4 ] = n12; te[ 8 ] = n13; te[ 12 ] = n14;\n\t\t\tte[ 1 ] = n21; te[ 5 ] = n22; te[ 9 ] = n23; te[ 13 ] = n24;\n\t\t\tte[ 2 ] = n31; te[ 6 ] = n32; te[ 10 ] = n33; te[ 14 ] = n34;\n\t\t\tte[ 3 ] = n41; te[ 7 ] = n42; te[ 11 ] = n43; te[ 15 ] = n44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, 1, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new Matrix4().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tthis.elements.set( m.elements );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyPosition: function ( m ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = m.elements;\n\n\t\t\tte[ 12 ] = me[ 12 ];\n\t\t\tte[ 13 ] = me[ 13 ];\n\t\t\tte[ 14 ] = me[ 14 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\txAxis.setFromMatrixColumn( this, 0 );\n\t\t\tyAxis.setFromMatrixColumn( this, 1 );\n\t\t\tzAxis.setFromMatrixColumn( this, 2 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeBasis: function ( xAxis, yAxis, zAxis ) {\n\n\t\t\tthis.set(\n\t\t\t\txAxis.x, yAxis.x, zAxis.x, 0,\n\t\t\t\txAxis.y, yAxis.y, zAxis.y, 0,\n\t\t\t\txAxis.z, yAxis.z, zAxis.z, 0,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\textractRotation: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function extractRotation( m ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\n\t\t\t\tvar te = this.elements;\n\t\t\t\tvar me = m.elements;\n\n\t\t\t\tvar scaleX = 1 / v1.setFromMatrixColumn( m, 0 ).length();\n\t\t\t\tvar scaleY = 1 / v1.setFromMatrixColumn( m, 1 ).length();\n\t\t\t\tvar scaleZ = 1 / v1.setFromMatrixColumn( m, 2 ).length();\n\n\t\t\t\tte[ 0 ] = me[ 0 ] * scaleX;\n\t\t\t\tte[ 1 ] = me[ 1 ] * scaleX;\n\t\t\t\tte[ 2 ] = me[ 2 ] * scaleX;\n\n\t\t\t\tte[ 4 ] = me[ 4 ] * scaleY;\n\t\t\t\tte[ 5 ] = me[ 5 ] * scaleY;\n\t\t\t\tte[ 6 ] = me[ 6 ] * scaleY;\n\n\t\t\t\tte[ 8 ] = me[ 8 ] * scaleZ;\n\t\t\t\tte[ 9 ] = me[ 9 ] * scaleZ;\n\t\t\t\tte[ 10 ] = me[ 10 ] * scaleZ;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakeRotationFromEuler: function ( euler ) {\n\n\t\t\tif ( (euler && euler.isEuler) === false ) {\n\n\t\t\t\tconsole.error( 'THREE.Matrix: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.' );\n\n\t\t\t}\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = euler.x, y = euler.y, z = euler.z;\n\t\t\tvar a = Math.cos( x ), b = Math.sin( x );\n\t\t\tvar c = Math.cos( y ), d = Math.sin( y );\n\t\t\tvar e = Math.cos( z ), f = Math.sin( z );\n\n\t\t\tif ( euler.order === 'XYZ' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - c * f;\n\t\t\t\tte[ 8 ] = d;\n\n\t\t\t\tte[ 1 ] = af + be * d;\n\t\t\t\tte[ 5 ] = ae - bf * d;\n\t\t\t\tte[ 9 ] = - b * c;\n\n\t\t\t\tte[ 2 ] = bf - ae * d;\n\t\t\t\tte[ 6 ] = be + af * d;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YXZ' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce + df * b;\n\t\t\t\tte[ 4 ] = de * b - cf;\n\t\t\t\tte[ 8 ] = a * d;\n\n\t\t\t\tte[ 1 ] = a * f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b;\n\n\t\t\t\tte[ 2 ] = cf * b - de;\n\t\t\t\tte[ 6 ] = df + ce * b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZXY' ) {\n\n\t\t\t\tvar ce = c * e, cf = c * f, de = d * e, df = d * f;\n\n\t\t\t\tte[ 0 ] = ce - df * b;\n\t\t\t\tte[ 4 ] = - a * f;\n\t\t\t\tte[ 8 ] = de + cf * b;\n\n\t\t\t\tte[ 1 ] = cf + de * b;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = df - ce * b;\n\n\t\t\t\tte[ 2 ] = - a * d;\n\t\t\t\tte[ 6 ] = b;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'ZYX' ) {\n\n\t\t\t\tvar ae = a * e, af = a * f, be = b * e, bf = b * f;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = be * d - af;\n\t\t\t\tte[ 8 ] = ae * d + bf;\n\n\t\t\t\tte[ 1 ] = c * f;\n\t\t\t\tte[ 5 ] = bf * d + ae;\n\t\t\t\tte[ 9 ] = af * d - be;\n\n\t\t\t\tte[ 2 ] = - d;\n\t\t\t\tte[ 6 ] = b * c;\n\t\t\t\tte[ 10 ] = a * c;\n\n\t\t\t} else if ( euler.order === 'YZX' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = bd - ac * f;\n\t\t\t\tte[ 8 ] = bc * f + ad;\n\n\t\t\t\tte[ 1 ] = f;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = - b * e;\n\n\t\t\t\tte[ 2 ] = - d * e;\n\t\t\t\tte[ 6 ] = ad * f + bc;\n\t\t\t\tte[ 10 ] = ac - bd * f;\n\n\t\t\t} else if ( euler.order === 'XZY' ) {\n\n\t\t\t\tvar ac = a * c, ad = a * d, bc = b * c, bd = b * d;\n\n\t\t\t\tte[ 0 ] = c * e;\n\t\t\t\tte[ 4 ] = - f;\n\t\t\t\tte[ 8 ] = d * e;\n\n\t\t\t\tte[ 1 ] = ac * f + bd;\n\t\t\t\tte[ 5 ] = a * e;\n\t\t\t\tte[ 9 ] = ad * f - bc;\n\n\t\t\t\tte[ 2 ] = bc * f - ad;\n\t\t\t\tte[ 6 ] = b * e;\n\t\t\t\tte[ 10 ] = bd * f + ac;\n\n\t\t\t}\n\n\t\t\t// last column\n\t\t\tte[ 3 ] = 0;\n\t\t\tte[ 7 ] = 0;\n\t\t\tte[ 11 ] = 0;\n\n\t\t\t// bottom row\n\t\t\tte[ 12 ] = 0;\n\t\t\tte[ 13 ] = 0;\n\t\t\tte[ 14 ] = 0;\n\t\t\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationFromQuaternion: function ( q ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar x = q.x, y = q.y, z = q.z, w = q.w;\n\t\t\tvar x2 = x + x, y2 = y + y, z2 = z + z;\n\t\t\tvar xx = x * x2, xy = x * y2, xz = x * z2;\n\t\t\tvar yy = y * y2, yz = y * z2, zz = z * z2;\n\t\t\tvar wx = w * x2, wy = w * y2, wz = w * z2;\n\n\t\t\tte[ 0 ] = 1 - ( yy + zz );\n\t\t\tte[ 4 ] = xy - wz;\n\t\t\tte[ 8 ] = xz + wy;\n\n\t\t\tte[ 1 ] = xy + wz;\n\t\t\tte[ 5 ] = 1 - ( xx + zz );\n\t\t\tte[ 9 ] = yz - wx;\n\n\t\t\tte[ 2 ] = xz - wy;\n\t\t\tte[ 6 ] = yz + wx;\n\t\t\tte[ 10 ] = 1 - ( xx + yy );\n\n\t\t\t// last column\n\t\t\tte[ 3 ] = 0;\n\t\t\tte[ 7 ] = 0;\n\t\t\tte[ 11 ] = 0;\n\n\t\t\t// bottom row\n\t\t\tte[ 12 ] = 0;\n\t\t\tte[ 13 ] = 0;\n\t\t\tte[ 14 ] = 0;\n\t\t\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlookAt: function () {\n\n\t\t\tvar x, y, z;\n\n\t\t\treturn function lookAt( eye, target, up ) {\n\n\t\t\t\tif ( x === undefined ) {\n\n\t\t\t\t\tx = new Vector3();\n\t\t\t\t\ty = new Vector3();\n\t\t\t\t\tz = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tz.subVectors( eye, target ).normalize();\n\n\t\t\t\tif ( z.lengthSq() === 0 ) {\n\n\t\t\t\t\tz.z = 1;\n\n\t\t\t\t}\n\n\t\t\t\tx.crossVectors( up, z ).normalize();\n\n\t\t\t\tif ( x.lengthSq() === 0 ) {\n\n\t\t\t\t\tz.z += 0.0001;\n\t\t\t\t\tx.crossVectors( up, z ).normalize();\n\n\t\t\t\t}\n\n\t\t\t\ty.crossVectors( z, x );\n\n\n\t\t\t\tte[ 0 ] = x.x; te[ 4 ] = y.x; te[ 8 ] = z.x;\n\t\t\t\tte[ 1 ] = x.y; te[ 5 ] = y.y; te[ 9 ] = z.y;\n\t\t\t\tte[ 2 ] = x.z; te[ 6 ] = y.z; te[ 10 ] = z.z;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiply: function ( m, n ) {\n\n\t\t\tif ( n !== undefined ) {\n\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.' );\n\t\t\t\treturn this.multiplyMatrices( m, n );\n\n\t\t\t}\n\n\t\t\treturn this.multiplyMatrices( this, m );\n\n\t\t},\n\n\t\tpremultiply: function ( m ) {\n\n\t\t\treturn this.multiplyMatrices( m, this );\n\n\t\t},\n\n\t\tmultiplyMatrices: function ( a, b ) {\n\n\t\t\tvar ae = a.elements;\n\t\t\tvar be = b.elements;\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a11 = ae[ 0 ], a12 = ae[ 4 ], a13 = ae[ 8 ], a14 = ae[ 12 ];\n\t\t\tvar a21 = ae[ 1 ], a22 = ae[ 5 ], a23 = ae[ 9 ], a24 = ae[ 13 ];\n\t\t\tvar a31 = ae[ 2 ], a32 = ae[ 6 ], a33 = ae[ 10 ], a34 = ae[ 14 ];\n\t\t\tvar a41 = ae[ 3 ], a42 = ae[ 7 ], a43 = ae[ 11 ], a44 = ae[ 15 ];\n\n\t\t\tvar b11 = be[ 0 ], b12 = be[ 4 ], b13 = be[ 8 ], b14 = be[ 12 ];\n\t\t\tvar b21 = be[ 1 ], b22 = be[ 5 ], b23 = be[ 9 ], b24 = be[ 13 ];\n\t\t\tvar b31 = be[ 2 ], b32 = be[ 6 ], b33 = be[ 10 ], b34 = be[ 14 ];\n\t\t\tvar b41 = be[ 3 ], b42 = be[ 7 ], b43 = be[ 11 ], b44 = be[ 15 ];\n\n\t\t\tte[ 0 ] = a11 * b11 + a12 * b21 + a13 * b31 + a14 * b41;\n\t\t\tte[ 4 ] = a11 * b12 + a12 * b22 + a13 * b32 + a14 * b42;\n\t\t\tte[ 8 ] = a11 * b13 + a12 * b23 + a13 * b33 + a14 * b43;\n\t\t\tte[ 12 ] = a11 * b14 + a12 * b24 + a13 * b34 + a14 * b44;\n\n\t\t\tte[ 1 ] = a21 * b11 + a22 * b21 + a23 * b31 + a24 * b41;\n\t\t\tte[ 5 ] = a21 * b12 + a22 * b22 + a23 * b32 + a24 * b42;\n\t\t\tte[ 9 ] = a21 * b13 + a22 * b23 + a23 * b33 + a24 * b43;\n\t\t\tte[ 13 ] = a21 * b14 + a22 * b24 + a23 * b34 + a24 * b44;\n\n\t\t\tte[ 2 ] = a31 * b11 + a32 * b21 + a33 * b31 + a34 * b41;\n\t\t\tte[ 6 ] = a31 * b12 + a32 * b22 + a33 * b32 + a34 * b42;\n\t\t\tte[ 10 ] = a31 * b13 + a32 * b23 + a33 * b33 + a34 * b43;\n\t\t\tte[ 14 ] = a31 * b14 + a32 * b24 + a33 * b34 + a34 * b44;\n\n\t\t\tte[ 3 ] = a41 * b11 + a42 * b21 + a43 * b31 + a44 * b41;\n\t\t\tte[ 7 ] = a41 * b12 + a42 * b22 + a43 * b32 + a44 * b42;\n\t\t\tte[ 11 ] = a41 * b13 + a42 * b23 + a43 * b33 + a44 * b43;\n\t\t\tte[ 15 ] = a41 * b14 + a42 * b24 + a43 * b34 + a44 * b44;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyToArray: function ( a, b, r ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tthis.multiplyMatrices( a, b );\n\n\t\t\tr[ 0 ] = te[ 0 ]; r[ 1 ] = te[ 1 ]; r[ 2 ] = te[ 2 ]; r[ 3 ] = te[ 3 ];\n\t\t\tr[ 4 ] = te[ 4 ]; r[ 5 ] = te[ 5 ]; r[ 6 ] = te[ 6 ]; r[ 7 ] = te[ 7 ];\n\t\t\tr[ 8 ] = te[ 8 ]; r[ 9 ] = te[ 9 ]; r[ 10 ] = te[ 10 ]; r[ 11 ] = te[ 11 ];\n\t\t\tr[ 12 ] = te[ 12 ]; r[ 13 ] = te[ 13 ]; r[ 14 ] = te[ 14 ]; r[ 15 ] = te[ 15 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 4 ] *= s; te[ 8 ] *= s; te[ 12 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 5 ] *= s; te[ 9 ] *= s; te[ 13 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 6 ] *= s; te[ 10 ] *= s; te[ 14 ] *= s;\n\t\t\tte[ 3 ] *= s; te[ 7 ] *= s; te[ 11 ] *= s; te[ 15 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToVector3Array: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function applyToVector3Array( array, offset, length ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tif ( offset === undefined ) offset = 0;\n\t\t\t\tif ( length === undefined ) length = array.length;\n\n\t\t\t\tfor ( var i = 0, j = offset; i < length; i += 3, j += 3 ) {\n\n\t\t\t\t\tv1.fromArray( array, j );\n\t\t\t\t\tv1.applyMatrix4( this );\n\t\t\t\t\tv1.toArray( array, j );\n\n\t\t\t\t}\n\n\t\t\t\treturn array;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyToBuffer: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function applyToBuffer( buffer, offset, length ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tif ( offset === undefined ) offset = 0;\n\t\t\t\tif ( length === undefined ) length = buffer.length / buffer.itemSize;\n\n\t\t\t\tfor ( var i = 0, j = offset; i < length; i ++, j ++ ) {\n\n\t\t\t\t\tv1.x = buffer.getX( j );\n\t\t\t\t\tv1.y = buffer.getY( j );\n\t\t\t\t\tv1.z = buffer.getZ( j );\n\n\t\t\t\t\tv1.applyMatrix4( this );\n\n\t\t\t\t\tbuffer.setXYZ( j, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn buffer;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar n11 = te[ 0 ], n12 = te[ 4 ], n13 = te[ 8 ], n14 = te[ 12 ];\n\t\t\tvar n21 = te[ 1 ], n22 = te[ 5 ], n23 = te[ 9 ], n24 = te[ 13 ];\n\t\t\tvar n31 = te[ 2 ], n32 = te[ 6 ], n33 = te[ 10 ], n34 = te[ 14 ];\n\t\t\tvar n41 = te[ 3 ], n42 = te[ 7 ], n43 = te[ 11 ], n44 = te[ 15 ];\n\n\t\t\t//TODO: make this more efficient\n\t\t\t//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )\n\n\t\t\treturn (\n\t\t\t\tn41 * (\n\t\t\t\t\t+ n14 * n23 * n32\n\t\t\t\t\t - n13 * n24 * n32\n\t\t\t\t\t - n14 * n22 * n33\n\t\t\t\t\t + n12 * n24 * n33\n\t\t\t\t\t + n13 * n22 * n34\n\t\t\t\t\t - n12 * n23 * n34\n\t\t\t\t) +\n\t\t\t\tn42 * (\n\t\t\t\t\t+ n11 * n23 * n34\n\t\t\t\t\t - n11 * n24 * n33\n\t\t\t\t\t + n14 * n21 * n33\n\t\t\t\t\t - n13 * n21 * n34\n\t\t\t\t\t + n13 * n24 * n31\n\t\t\t\t\t - n14 * n23 * n31\n\t\t\t\t) +\n\t\t\t\tn43 * (\n\t\t\t\t\t+ n11 * n24 * n32\n\t\t\t\t\t - n11 * n22 * n34\n\t\t\t\t\t - n14 * n21 * n32\n\t\t\t\t\t + n12 * n21 * n34\n\t\t\t\t\t + n14 * n22 * n31\n\t\t\t\t\t - n12 * n24 * n31\n\t\t\t\t) +\n\t\t\t\tn44 * (\n\t\t\t\t\t- n13 * n22 * n31\n\t\t\t\t\t - n11 * n23 * n32\n\t\t\t\t\t + n11 * n22 * n33\n\t\t\t\t\t + n13 * n21 * n32\n\t\t\t\t\t - n12 * n21 * n33\n\t\t\t\t\t + n12 * n23 * n31\n\t\t\t\t)\n\n\t\t\t);\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar tmp;\n\n\t\t\ttmp = te[ 1 ]; te[ 1 ] = te[ 4 ]; te[ 4 ] = tmp;\n\t\t\ttmp = te[ 2 ]; te[ 2 ] = te[ 8 ]; te[ 8 ] = tmp;\n\t\t\ttmp = te[ 6 ]; te[ 6 ] = te[ 9 ]; te[ 9 ] = tmp;\n\n\t\t\ttmp = te[ 3 ]; te[ 3 ] = te[ 12 ]; te[ 12 ] = tmp;\n\t\t\ttmp = te[ 7 ]; te[ 7 ] = te[ 13 ]; te[ 13 ] = tmp;\n\t\t\ttmp = te[ 11 ]; te[ 11 ] = te[ 14 ]; te[ 14 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix3: .flattenToArrayOffset is deprecated \" +\n\t\t\t\t\t\"- just use .toArray instead.\" );\n\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\n\t\tgetPosition: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function getPosition() {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tconsole.warn( 'THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.' );\n\n\t\t\t\treturn v1.setFromMatrixColumn( this, 3 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetPosition: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 12 ] = v.x;\n\t\t\tte[ 13 ] = v.y;\n\t\t\tte[ 14 ] = v.z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetInverse: function ( m, throwOnDegenerate ) {\n\n\t\t\t// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm\n\t\t\tvar te = this.elements,\n\t\t\t\tme = m.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ], n41 = me[ 3 ],\n\t\t\t\tn12 = me[ 4 ], n22 = me[ 5 ], n32 = me[ 6 ], n42 = me[ 7 ],\n\t\t\t\tn13 = me[ 8 ], n23 = me[ 9 ], n33 = me[ 10 ], n43 = me[ 11 ],\n\t\t\t\tn14 = me[ 12 ], n24 = me[ 13 ], n34 = me[ 14 ], n44 = me[ 15 ],\n\n\t\t\t\tt11 = n23 * n34 * n42 - n24 * n33 * n42 + n24 * n32 * n43 - n22 * n34 * n43 - n23 * n32 * n44 + n22 * n33 * n44,\n\t\t\t\tt12 = n14 * n33 * n42 - n13 * n34 * n42 - n14 * n32 * n43 + n12 * n34 * n43 + n13 * n32 * n44 - n12 * n33 * n44,\n\t\t\t\tt13 = n13 * n24 * n42 - n14 * n23 * n42 + n14 * n22 * n43 - n12 * n24 * n43 - n13 * n22 * n44 + n12 * n23 * n44,\n\t\t\t\tt14 = n14 * n23 * n32 - n13 * n24 * n32 - n14 * n22 * n33 + n12 * n24 * n33 + n13 * n22 * n34 - n12 * n23 * n34;\n\n\t\t\tvar det = n11 * t11 + n21 * t12 + n31 * t13 + n41 * t14;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix4.getInverse(): can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n24 * n33 * n41 - n23 * n34 * n41 - n24 * n31 * n43 + n21 * n34 * n43 + n23 * n31 * n44 - n21 * n33 * n44 ) * detInv;\n\t\t\tte[ 2 ] = ( n22 * n34 * n41 - n24 * n32 * n41 + n24 * n31 * n42 - n21 * n34 * n42 - n22 * n31 * n44 + n21 * n32 * n44 ) * detInv;\n\t\t\tte[ 3 ] = ( n23 * n32 * n41 - n22 * n33 * n41 - n23 * n31 * n42 + n21 * n33 * n42 + n22 * n31 * n43 - n21 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 4 ] = t12 * detInv;\n\t\t\tte[ 5 ] = ( n13 * n34 * n41 - n14 * n33 * n41 + n14 * n31 * n43 - n11 * n34 * n43 - n13 * n31 * n44 + n11 * n33 * n44 ) * detInv;\n\t\t\tte[ 6 ] = ( n14 * n32 * n41 - n12 * n34 * n41 - n14 * n31 * n42 + n11 * n34 * n42 + n12 * n31 * n44 - n11 * n32 * n44 ) * detInv;\n\t\t\tte[ 7 ] = ( n12 * n33 * n41 - n13 * n32 * n41 + n13 * n31 * n42 - n11 * n33 * n42 - n12 * n31 * n43 + n11 * n32 * n43 ) * detInv;\n\n\t\t\tte[ 8 ] = t13 * detInv;\n\t\t\tte[ 9 ] = ( n14 * n23 * n41 - n13 * n24 * n41 - n14 * n21 * n43 + n11 * n24 * n43 + n13 * n21 * n44 - n11 * n23 * n44 ) * detInv;\n\t\t\tte[ 10 ] = ( n12 * n24 * n41 - n14 * n22 * n41 + n14 * n21 * n42 - n11 * n24 * n42 - n12 * n21 * n44 + n11 * n22 * n44 ) * detInv;\n\t\t\tte[ 11 ] = ( n13 * n22 * n41 - n12 * n23 * n41 - n13 * n21 * n42 + n11 * n23 * n42 + n12 * n21 * n43 - n11 * n22 * n43 ) * detInv;\n\n\t\t\tte[ 12 ] = t14 * detInv;\n\t\t\tte[ 13 ] = ( n13 * n24 * n31 - n14 * n23 * n31 + n14 * n21 * n33 - n11 * n24 * n33 - n13 * n21 * n34 + n11 * n23 * n34 ) * detInv;\n\t\t\tte[ 14 ] = ( n14 * n22 * n31 - n12 * n24 * n31 - n14 * n21 * n32 + n11 * n24 * n32 + n12 * n21 * n34 - n11 * n22 * n34 ) * detInv;\n\t\t\tte[ 15 ] = ( n12 * n23 * n31 - n13 * n22 * n31 + n13 * n21 * n32 - n11 * n23 * n32 - n12 * n21 * n33 + n11 * n22 * n33 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tscale: function ( v ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = v.x, y = v.y, z = v.z;\n\n\t\t\tte[ 0 ] *= x; te[ 4 ] *= y; te[ 8 ] *= z;\n\t\t\tte[ 1 ] *= x; te[ 5 ] *= y; te[ 9 ] *= z;\n\t\t\tte[ 2 ] *= x; te[ 6 ] *= y; te[ 10 ] *= z;\n\t\t\tte[ 3 ] *= x; te[ 7 ] *= y; te[ 11 ] *= z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetMaxScaleOnAxis: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar scaleXSq = te[ 0 ] * te[ 0 ] + te[ 1 ] * te[ 1 ] + te[ 2 ] * te[ 2 ];\n\t\t\tvar scaleYSq = te[ 4 ] * te[ 4 ] + te[ 5 ] * te[ 5 ] + te[ 6 ] * te[ 6 ];\n\t\t\tvar scaleZSq = te[ 8 ] * te[ 8 ] + te[ 9 ] * te[ 9 ] + te[ 10 ] * te[ 10 ];\n\n\t\t\treturn Math.sqrt( Math.max( scaleXSq, scaleYSq, scaleZSq ) );\n\n\t\t},\n\n\t\tmakeTranslation: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, x,\n\t\t\t\t0, 1, 0, y,\n\t\t\t\t0, 0, 1, z,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationX: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0, 0,\n\t\t\t\t0, c, - s, 0,\n\t\t\t\t0, s, c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationY: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\t c, 0, s, 0,\n\t\t\t\t 0, 1, 0, 0,\n\t\t\t\t- s, 0, c, 0,\n\t\t\t\t 0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationZ: function ( theta ) {\n\n\t\t\tvar c = Math.cos( theta ), s = Math.sin( theta );\n\n\t\t\tthis.set(\n\n\t\t\t\tc, - s, 0, 0,\n\t\t\t\ts, c, 0, 0,\n\t\t\t\t0, 0, 1, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeRotationAxis: function ( axis, angle ) {\n\n\t\t\t// Based on http://www.gamedev.net/reference/articles/article1199.asp\n\n\t\t\tvar c = Math.cos( angle );\n\t\t\tvar s = Math.sin( angle );\n\t\t\tvar t = 1 - c;\n\t\t\tvar x = axis.x, y = axis.y, z = axis.z;\n\t\t\tvar tx = t * x, ty = t * y;\n\n\t\t\tthis.set(\n\n\t\t\t\ttx * x + c, tx * y - s * z, tx * z + s * y, 0,\n\t\t\t\ttx * y + s * z, ty * y + c, ty * z - s * x, 0,\n\t\t\t\ttx * z - s * y, ty * z + s * x, t * z * z + c, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\t return this;\n\n\t\t},\n\n\t\tmakeScale: function ( x, y, z ) {\n\n\t\t\tthis.set(\n\n\t\t\t\tx, 0, 0, 0,\n\t\t\t\t0, y, 0, 0,\n\t\t\t\t0, 0, z, 0,\n\t\t\t\t0, 0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcompose: function ( position, quaternion, scale ) {\n\n\t\t\tthis.makeRotationFromQuaternion( quaternion );\n\t\t\tthis.scale( scale );\n\t\t\tthis.setPosition( position );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdecompose: function () {\n\n\t\t\tvar vector, matrix;\n\n\t\t\treturn function decompose( position, quaternion, scale ) {\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tvector = new Vector3();\n\t\t\t\t\tmatrix = new Matrix4();\n\n\t\t\t\t}\n\n\t\t\t\tvar te = this.elements;\n\n\t\t\t\tvar sx = vector.set( te[ 0 ], te[ 1 ], te[ 2 ] ).length();\n\t\t\t\tvar sy = vector.set( te[ 4 ], te[ 5 ], te[ 6 ] ).length();\n\t\t\t\tvar sz = vector.set( te[ 8 ], te[ 9 ], te[ 10 ] ).length();\n\n\t\t\t\t// if determine is negative, we need to invert one scale\n\t\t\t\tvar det = this.determinant();\n\t\t\t\tif ( det < 0 ) {\n\n\t\t\t\t\tsx = - sx;\n\n\t\t\t\t}\n\n\t\t\t\tposition.x = te[ 12 ];\n\t\t\t\tposition.y = te[ 13 ];\n\t\t\t\tposition.z = te[ 14 ];\n\n\t\t\t\t// scale the rotation part\n\n\t\t\t\tmatrix.elements.set( this.elements ); // at this point matrix is incomplete so we can't use .copy()\n\n\t\t\t\tvar invSX = 1 / sx;\n\t\t\t\tvar invSY = 1 / sy;\n\t\t\t\tvar invSZ = 1 / sz;\n\n\t\t\t\tmatrix.elements[ 0 ] *= invSX;\n\t\t\t\tmatrix.elements[ 1 ] *= invSX;\n\t\t\t\tmatrix.elements[ 2 ] *= invSX;\n\n\t\t\t\tmatrix.elements[ 4 ] *= invSY;\n\t\t\t\tmatrix.elements[ 5 ] *= invSY;\n\t\t\t\tmatrix.elements[ 6 ] *= invSY;\n\n\t\t\t\tmatrix.elements[ 8 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 9 ] *= invSZ;\n\t\t\t\tmatrix.elements[ 10 ] *= invSZ;\n\n\t\t\t\tquaternion.setFromRotationMatrix( matrix );\n\n\t\t\t\tscale.x = sx;\n\t\t\t\tscale.y = sy;\n\t\t\t\tscale.z = sz;\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmakeFrustum: function ( left, right, bottom, top, near, far ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar x = 2 * near / ( right - left );\n\t\t\tvar y = 2 * near / ( top - bottom );\n\n\t\t\tvar a = ( right + left ) / ( right - left );\n\t\t\tvar b = ( top + bottom ) / ( top - bottom );\n\t\t\tvar c = - ( far + near ) / ( far - near );\n\t\t\tvar d = - 2 * far * near / ( far - near );\n\n\t\t\tte[ 0 ] = x;\tte[ 4 ] = 0;\tte[ 8 ] = a;\tte[ 12 ] = 0;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = y;\tte[ 9 ] = b;\tte[ 13 ] = 0;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = c;\tte[ 14 ] = d;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = - 1;\tte[ 15 ] = 0;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakePerspective: function ( fov, aspect, near, far ) {\n\n\t\t\tvar ymax = near * Math.tan( _Math.DEG2RAD * fov * 0.5 );\n\t\t\tvar ymin = - ymax;\n\t\t\tvar xmin = ymin * aspect;\n\t\t\tvar xmax = ymax * aspect;\n\n\t\t\treturn this.makeFrustum( xmin, xmax, ymin, ymax, near, far );\n\n\t\t},\n\n\t\tmakeOrthographic: function ( left, right, top, bottom, near, far ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar w = 1.0 / ( right - left );\n\t\t\tvar h = 1.0 / ( top - bottom );\n\t\t\tvar p = 1.0 / ( far - near );\n\n\t\t\tvar x = ( right + left ) * w;\n\t\t\tvar y = ( top + bottom ) * h;\n\t\t\tvar z = ( far + near ) * p;\n\n\t\t\tte[ 0 ] = 2 * w;\tte[ 4 ] = 0;\tte[ 8 ] = 0;\tte[ 12 ] = - x;\n\t\t\tte[ 1 ] = 0;\tte[ 5 ] = 2 * h;\tte[ 9 ] = 0;\tte[ 13 ] = - y;\n\t\t\tte[ 2 ] = 0;\tte[ 6 ] = 0;\tte[ 10 ] = - 2 * p;\tte[ 14 ] = - z;\n\t\t\tte[ 3 ] = 0;\tte[ 7 ] = 0;\tte[ 11 ] = 0;\tte[ 15 ] = 1;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( matrix ) {\n\n\t\t\tvar te = this.elements;\n\t\t\tvar me = matrix.elements;\n\n\t\t\tfor ( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tif ( te[ i ] !== me[ i ] ) return false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor( var i = 0; i < 16; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\t\t\tarray[ offset + 9 ] = te[ 9 ];\n\t\t\tarray[ offset + 10 ] = te[ 10 ];\n\t\t\tarray[ offset + 11 ] = te[ 11 ];\n\n\t\t\tarray[ offset + 12 ] = te[ 12 ];\n\t\t\tarray[ offset + 13 ] = te[ 13 ];\n\t\t\tarray[ offset + 14 ] = te[ 14 ];\n\t\t\tarray[ offset + 15 ] = te[ 15 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CubeTexture( images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding ) {\n\n\t\timages = images !== undefined ? images : [];\n\t\tmapping = mapping !== undefined ? mapping : CubeReflectionMapping;\n\n\t\tTexture.call( this, images, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.flipY = false;\n\n\t}\n\n\tCubeTexture.prototype = Object.create( Texture.prototype );\n\tCubeTexture.prototype.constructor = CubeTexture;\n\n\tCubeTexture.prototype.isCubeTexture = true;\n\n\tObject.defineProperty( CubeTexture.prototype, 'images', {\n\n\t\tget: function () {\n\n\t\t\treturn this.image;\n\n\t\t},\n\n\t\tset: function ( value ) {\n\n\t\t\tthis.image = value;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t *\n\t * Uniforms of a program.\n\t * Those form a tree structure with a special top-level container for the root,\n\t * which you get by calling 'new WebGLUniforms( gl, program, renderer )'.\n\t *\n\t *\n\t * Properties of inner nodes including the top-level container:\n\t *\n\t * .seq - array of nested uniforms\n\t * .map - nested uniforms by name\n\t *\n\t *\n\t * Methods of all nodes except the top-level container:\n\t *\n\t * .setValue( gl, value, [renderer] )\n\t *\n\t * \t\tuploads a uniform value(s)\n\t * \tthe 'renderer' parameter is needed for sampler uniforms\n\t *\n\t *\n\t * Static methods of the top-level container (renderer factorizations):\n\t *\n\t * .upload( gl, seq, values, renderer )\n\t *\n\t * \t\tsets uniforms in 'seq' to 'values[id].value'\n\t *\n\t * .seqWithValue( seq, values ) : filteredSeq\n\t *\n\t * \t\tfilters 'seq' entries with corresponding entry in values\n\t *\n\t *\n\t * Methods of the top-level container (renderer factorizations):\n\t *\n\t * .setValue( gl, name, value )\n\t *\n\t * \t\tsets uniform with name 'name' to 'value'\n\t *\n\t * .set( gl, obj, prop )\n\t *\n\t * \t\tsets uniform from object and property with same name than uniform\n\t *\n\t * .setOptional( gl, obj, prop )\n\t *\n\t * \t\tlike .set for an optional property of the object\n\t *\n\t */\n\n\tvar emptyTexture = new Texture();\n\tvar emptyCubeTexture = new CubeTexture();\n\n\t// --- Base for inner nodes (including the root) ---\n\n\tfunction UniformContainer() {\n\n\t\tthis.seq = [];\n\t\tthis.map = {};\n\n\t}\n\n\t// --- Utilities ---\n\n\t// Array Caches (provide typed arrays for temporary by size)\n\n\tvar arrayCacheF32 = [];\n\tvar arrayCacheI32 = [];\n\n\t// Flattening for arrays of vectors and matrices\n\n\tfunction flatten( array, nBlocks, blockSize ) {\n\n\t\tvar firstElem = array[ 0 ];\n\n\t\tif ( firstElem <= 0 || firstElem > 0 ) return array;\n\t\t// unoptimized: ! isNaN( firstElem )\n\t\t// see http://jacksondunstan.com/articles/983\n\n\t\tvar n = nBlocks * blockSize,\n\t\t\tr = arrayCacheF32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Float32Array( n );\n\t\t\tarrayCacheF32[ n ] = r;\n\n\t\t}\n\n\t\tif ( nBlocks !== 0 ) {\n\n\t\t\tfirstElem.toArray( r, 0 );\n\n\t\t\tfor ( var i = 1, offset = 0; i !== nBlocks; ++ i ) {\n\n\t\t\t\toffset += blockSize;\n\t\t\t\tarray[ i ].toArray( r, offset );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn r;\n\n\t}\n\n\t// Texture unit allocation\n\n\tfunction allocTexUnits( renderer, n ) {\n\n\t\tvar r = arrayCacheI32[ n ];\n\n\t\tif ( r === undefined ) {\n\n\t\t\tr = new Int32Array( n );\n\t\t\tarrayCacheI32[ n ] = r;\n\n\t\t}\n\n\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\tr[ i ] = renderer.allocTextureUnit();\n\n\t\treturn r;\n\n\t}\n\n\t// --- Setters ---\n\n\t// Note: Defining these methods externally, because they come in a bunch\n\t// and this way their names minify.\n\n\t// Single scalar\n\n\tfunction setValue1f( gl, v ) { gl.uniform1f( this.addr, v ); }\n\tfunction setValue1i( gl, v ) { gl.uniform1i( this.addr, v ); }\n\n\t// Single float vector (from flat array or THREE.VectorN)\n\n\tfunction setValue2fv( gl, v ) {\n\n\t\tif ( v.x === undefined ) gl.uniform2fv( this.addr, v );\n\t\telse gl.uniform2f( this.addr, v.x, v.y );\n\n\t}\n\n\tfunction setValue3fv( gl, v ) {\n\n\t\tif ( v.x !== undefined )\n\t\t\tgl.uniform3f( this.addr, v.x, v.y, v.z );\n\t\telse if ( v.r !== undefined )\n\t\t\tgl.uniform3f( this.addr, v.r, v.g, v.b );\n\t\telse\n\t\t\tgl.uniform3fv( this.addr, v );\n\n\t}\n\n\tfunction setValue4fv( gl, v ) {\n\n\t\tif ( v.x === undefined ) gl.uniform4fv( this.addr, v );\n\t\telse gl.uniform4f( this.addr, v.x, v.y, v.z, v.w );\n\n\t}\n\n\t// Single matrix (from flat array or MatrixN)\n\n\tfunction setValue2fm( gl, v ) {\n\n\t\tgl.uniformMatrix2fv( this.addr, false, v.elements || v );\n\n\t}\n\n\tfunction setValue3fm( gl, v ) {\n\n\t\tgl.uniformMatrix3fv( this.addr, false, v.elements || v );\n\n\t}\n\n\tfunction setValue4fm( gl, v ) {\n\n\t\tgl.uniformMatrix4fv( this.addr, false, v.elements || v );\n\n\t}\n\n\t// Single texture (2D / Cube)\n\n\tfunction setValueT1( gl, v, renderer ) {\n\n\t\tvar unit = renderer.allocTextureUnit();\n\t\tgl.uniform1i( this.addr, unit );\n\t\trenderer.setTexture2D( v || emptyTexture, unit );\n\n\t}\n\n\tfunction setValueT6( gl, v, renderer ) {\n\n\t\tvar unit = renderer.allocTextureUnit();\n\t\tgl.uniform1i( this.addr, unit );\n\t\trenderer.setTextureCube( v || emptyCubeTexture, unit );\n\n\t}\n\n\t// Integer / Boolean vectors or arrays thereof (always flat arrays)\n\n\tfunction setValue2iv( gl, v ) { gl.uniform2iv( this.addr, v ); }\n\tfunction setValue3iv( gl, v ) { gl.uniform3iv( this.addr, v ); }\n\tfunction setValue4iv( gl, v ) { gl.uniform4iv( this.addr, v ); }\n\n\t// Helper to pick the right setter for the singular case\n\n\tfunction getSingularSetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1f; // FLOAT\n\t\t\tcase 0x8b50: return setValue2fv; // _VEC2\n\t\t\tcase 0x8b51: return setValue3fv; // _VEC3\n\t\t\tcase 0x8b52: return setValue4fv; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValue2fm; // _MAT2\n\t\t\tcase 0x8b5b: return setValue3fm; // _MAT3\n\t\t\tcase 0x8b5c: return setValue4fm; // _MAT4\n\n\t\t\tcase 0x8b5e: return setValueT1; // SAMPLER_2D\n\t\t\tcase 0x8b60: return setValueT6; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1i; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// Array of scalars\n\n\tfunction setValue1fv( gl, v ) { gl.uniform1fv( this.addr, v ); }\n\tfunction setValue1iv( gl, v ) { gl.uniform1iv( this.addr, v ); }\n\n\t// Array of vectors (flat or from THREE classes)\n\n\tfunction setValueV2a( gl, v ) {\n\n\t\tgl.uniform2fv( this.addr, flatten( v, this.size, 2 ) );\n\n\t}\n\n\tfunction setValueV3a( gl, v ) {\n\n\t\tgl.uniform3fv( this.addr, flatten( v, this.size, 3 ) );\n\n\t}\n\n\tfunction setValueV4a( gl, v ) {\n\n\t\tgl.uniform4fv( this.addr, flatten( v, this.size, 4 ) );\n\n\t}\n\n\t// Array of matrices (flat or from THREE clases)\n\n\tfunction setValueM2a( gl, v ) {\n\n\t\tgl.uniformMatrix2fv( this.addr, false, flatten( v, this.size, 4 ) );\n\n\t}\n\n\tfunction setValueM3a( gl, v ) {\n\n\t\tgl.uniformMatrix3fv( this.addr, false, flatten( v, this.size, 9 ) );\n\n\t}\n\n\tfunction setValueM4a( gl, v ) {\n\n\t\tgl.uniformMatrix4fv( this.addr, false, flatten( v, this.size, 16 ) );\n\n\t}\n\n\t// Array of textures (2D / Cube)\n\n\tfunction setValueT1a( gl, v, renderer ) {\n\n\t\tvar n = v.length,\n\t\t\tunits = allocTexUnits( renderer, n );\n\n\t\tgl.uniform1iv( this.addr, units );\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTexture2D( v[ i ] || emptyTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\tfunction setValueT6a( gl, v, renderer ) {\n\n\t\tvar n = v.length,\n\t\t\tunits = allocTexUnits( renderer, n );\n\n\t\tgl.uniform1iv( this.addr, units );\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\trenderer.setTextureCube( v[ i ] || emptyCubeTexture, units[ i ] );\n\n\t\t}\n\n\t}\n\n\t// Helper to pick the right setter for a pure (bottom-level) array\n\n\tfunction getPureArraySetter( type ) {\n\n\t\tswitch ( type ) {\n\n\t\t\tcase 0x1406: return setValue1fv; // FLOAT\n\t\t\tcase 0x8b50: return setValueV2a; // _VEC2\n\t\t\tcase 0x8b51: return setValueV3a; // _VEC3\n\t\t\tcase 0x8b52: return setValueV4a; // _VEC4\n\n\t\t\tcase 0x8b5a: return setValueM2a; // _MAT2\n\t\t\tcase 0x8b5b: return setValueM3a; // _MAT3\n\t\t\tcase 0x8b5c: return setValueM4a; // _MAT4\n\n\t\t\tcase 0x8b5e: return setValueT1a; // SAMPLER_2D\n\t\t\tcase 0x8b60: return setValueT6a; // SAMPLER_CUBE\n\n\t\t\tcase 0x1404: case 0x8b56: return setValue1iv; // INT, BOOL\n\t\t\tcase 0x8b53: case 0x8b57: return setValue2iv; // _VEC2\n\t\t\tcase 0x8b54: case 0x8b58: return setValue3iv; // _VEC3\n\t\t\tcase 0x8b55: case 0x8b59: return setValue4iv; // _VEC4\n\n\t\t}\n\n\t}\n\n\t// --- Uniform Classes ---\n\n\tfunction SingleUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.setValue = getSingularSetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tfunction PureArrayUniform( id, activeInfo, addr ) {\n\n\t\tthis.id = id;\n\t\tthis.addr = addr;\n\t\tthis.size = activeInfo.size;\n\t\tthis.setValue = getPureArraySetter( activeInfo.type );\n\n\t\t// this.path = activeInfo.name; // DEBUG\n\n\t}\n\n\tfunction StructuredUniform( id ) {\n\n\t\tthis.id = id;\n\n\t\tUniformContainer.call( this ); // mix-in\n\n\t}\n\n\tStructuredUniform.prototype.setValue = function( gl, value ) {\n\n\t\t// Note: Don't need an extra 'renderer' parameter, since samplers\n\t\t// are not allowed in structured uniforms.\n\n\t\tvar seq = this.seq;\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tu.setValue( gl, value[ u.id ] );\n\n\t\t}\n\n\t};\n\n\t// --- Top-level ---\n\n\t// Parser - builds up the property tree from the path strings\n\n\tvar RePathPart = /([\\w\\d_]+)(\\])?(\\[|\\.)?/g;\n\n\t// extracts\n\t// \t- the identifier (member name or array index)\n\t// - followed by an optional right bracket (found when array index)\n\t// - followed by an optional left bracket or dot (type of subscript)\n\t//\n\t// Note: These portions can be read in a non-overlapping fashion and\n\t// allow straightforward parsing of the hierarchy that WebGL encodes\n\t// in the uniform names.\n\n\tfunction addUniform( container, uniformObject ) {\n\n\t\tcontainer.seq.push( uniformObject );\n\t\tcontainer.map[ uniformObject.id ] = uniformObject;\n\n\t}\n\n\tfunction parseUniform( activeInfo, addr, container ) {\n\n\t\tvar path = activeInfo.name,\n\t\t\tpathLength = path.length;\n\n\t\t// reset RegExp object, because of the early exit of a previous run\n\t\tRePathPart.lastIndex = 0;\n\n\t\tfor (; ;) {\n\n\t\t\tvar match = RePathPart.exec( path ),\n\t\t\t\tmatchEnd = RePathPart.lastIndex,\n\n\t\t\t\tid = match[ 1 ],\n\t\t\t\tidIsIndex = match[ 2 ] === ']',\n\t\t\t\tsubscript = match[ 3 ];\n\n\t\t\tif ( idIsIndex ) id = id | 0; // convert to integer\n\n\t\t\tif ( subscript === undefined ||\n\t\t\t\t\tsubscript === '[' && matchEnd + 2 === pathLength ) {\n\t\t\t\t// bare name or \"pure\" bottom-level array \"[0]\" suffix\n\n\t\t\t\taddUniform( container, subscript === undefined ?\n\t\t\t\t\t\tnew SingleUniform( id, activeInfo, addr ) :\n\t\t\t\t\t\tnew PureArrayUniform( id, activeInfo, addr ) );\n\n\t\t\t\tbreak;\n\n\t\t\t} else {\n\t\t\t\t// step into inner node / create it in case it doesn't exist\n\n\t\t\t\tvar map = container.map,\n\t\t\t\t\tnext = map[ id ];\n\n\t\t\t\tif ( next === undefined ) {\n\n\t\t\t\t\tnext = new StructuredUniform( id );\n\t\t\t\t\taddUniform( container, next );\n\n\t\t\t\t}\n\n\t\t\t\tcontainer = next;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t// Root Container\n\n\tfunction WebGLUniforms( gl, program, renderer ) {\n\n\t\tUniformContainer.call( this );\n\n\t\tthis.renderer = renderer;\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_UNIFORMS );\n\n\t\tfor ( var i = 0; i !== n; ++ i ) {\n\n\t\t\tvar info = gl.getActiveUniform( program, i ),\n\t\t\t\tpath = info.name,\n\t\t\t\taddr = gl.getUniformLocation( program, path );\n\n\t\t\tparseUniform( info, addr, this );\n\n\t\t}\n\n\t}\n\n\tWebGLUniforms.prototype.setValue = function( gl, name, value ) {\n\n\t\tvar u = this.map[ name ];\n\n\t\tif ( u !== undefined ) u.setValue( gl, value, this.renderer );\n\n\t};\n\n\tWebGLUniforms.prototype.set = function( gl, object, name ) {\n\n\t\tvar u = this.map[ name ];\n\n\t\tif ( u !== undefined ) u.setValue( gl, object[ name ], this.renderer );\n\n\t};\n\n\tWebGLUniforms.prototype.setOptional = function( gl, object, name ) {\n\n\t\tvar v = object[ name ];\n\n\t\tif ( v !== undefined ) this.setValue( gl, name, v );\n\n\t};\n\n\n\t// Static interface\n\n\tWebGLUniforms.upload = function( gl, seq, values, renderer ) {\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ],\n\t\t\t\tv = values[ u.id ];\n\n\t\t\tif ( v.needsUpdate !== false ) {\n\t\t\t\t// note: always updating when .needsUpdate is undefined\n\n\t\t\t\tu.setValue( gl, v.value, renderer );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\tWebGLUniforms.seqWithValue = function( seq, values ) {\n\n\t\tvar r = [];\n\n\t\tfor ( var i = 0, n = seq.length; i !== n; ++ i ) {\n\n\t\t\tvar u = seq[ i ];\n\t\t\tif ( u.id in values ) r.push( u );\n\n\t\t}\n\n\t\treturn r;\n\n\t};\n\n\t/**\n\t * Uniform Utilities\n\t */\n\n\tvar UniformsUtils = {\n\n\t\tmerge: function ( uniforms ) {\n\n\t\t\tvar merged = {};\n\n\t\t\tfor ( var u = 0; u < uniforms.length; u ++ ) {\n\n\t\t\t\tvar tmp = this.clone( uniforms[ u ] );\n\n\t\t\t\tfor ( var p in tmp ) {\n\n\t\t\t\t\tmerged[ p ] = tmp[ p ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn merged;\n\n\t\t},\n\n\t\tclone: function ( uniforms_src ) {\n\n\t\t\tvar uniforms_dst = {};\n\n\t\t\tfor ( var u in uniforms_src ) {\n\n\t\t\t\tuniforms_dst[ u ] = {};\n\n\t\t\t\tfor ( var p in uniforms_src[ u ] ) {\n\n\t\t\t\t\tvar parameter_src = uniforms_src[ u ][ p ];\n\n\t\t\t\t\tif ( parameter_src && ( parameter_src.isColor ||\n\t\t\t\t\t\tparameter_src.isMatrix3 || parameter_src.isMatrix4 ||\n\t\t\t\t\t\tparameter_src.isVector2 || parameter_src.isVector3 || parameter_src.isVector4 ||\n\t\t\t\t\t\tparameter_src.isTexture ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.clone();\n\n\t\t\t\t\t} else if ( Array.isArray( parameter_src ) ) {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src.slice();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tuniforms_dst[ u ][ p ] = parameter_src;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn uniforms_dst;\n\n\t\t}\n\n\t};\n\n\tvar alphamap_fragment = \"#ifdef USE_ALPHAMAP\\n\\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\\n#endif\\n\";\n\n\tvar alphamap_pars_fragment = \"#ifdef USE_ALPHAMAP\\n\\tuniform sampler2D alphaMap;\\n#endif\\n\";\n\n\tvar alphatest_fragment = \"#ifdef ALPHATEST\\n\\tif ( diffuseColor.a < ALPHATEST ) discard;\\n#endif\\n\";\n\n\tvar aomap_fragment = \"#ifdef USE_AOMAP\\n\\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\\n\\treflectedLight.indirectDiffuse *= ambientOcclusion;\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\\n\\t#endif\\n#endif\\n\";\n\n\tvar aomap_pars_fragment = \"#ifdef USE_AOMAP\\n\\tuniform sampler2D aoMap;\\n\\tuniform float aoMapIntensity;\\n#endif\";\n\n\tvar begin_vertex = \"\\nvec3 transformed = vec3( position );\\n\";\n\n\tvar beginnormal_vertex = \"\\nvec3 objectNormal = vec3( normal );\\n\";\n\n\tvar bsdfs = \"bool testLightInRange( const in float lightDistance, const in float cutoffDistance ) {\\n\\treturn any( bvec2( cutoffDistance == 0.0, lightDistance < cutoffDistance ) );\\n}\\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\\n\\t\\tif( decayExponent > 0.0 ) {\\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\\n\\t\\t\\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\\n\\t\\t\\tfloat maxDistanceCutoffFactor = pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\\n\\t\\t\\treturn distanceFalloff * maxDistanceCutoffFactor;\\n#else\\n\\t\\t\\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\\n#endif\\n\\t\\t}\\n\\t\\treturn 1.0;\\n}\\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\\n\\treturn RECIPROCAL_PI * diffuseColor;\\n}\\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\\n\\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\\n\\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\\n}\\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\treturn 1.0 / ( gl * gv );\\n}\\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\\n\\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\\n\\treturn 0.5 / max( gv + gl, EPSILON );\\n}\\nfloat D_GGX( const in float alpha, const in float dotNH ) {\\n\\tfloat a2 = pow2( alpha );\\n\\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\\n\\treturn RECIPROCAL_PI * a2 / pow2( denom );\\n}\\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat alpha = pow2( roughness );\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNL = saturate( dot( geometry.normal, incidentLight.direction ) );\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\\n\\tfloat D = D_GGX( alpha, dotNH );\\n\\treturn F * ( G * D );\\n}\\nvec3 BRDF_Specular_GGX_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness ) {\\n\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\\n\\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\\n\\tvec4 r = roughness * c0 + c1;\\n\\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\\n\\tvec2 AB = vec2( -1.04, 1.04 ) * a004 + r.zw;\\n\\treturn specularColor * AB.x + AB.y;\\n}\\nfloat G_BlinnPhong_Implicit( ) {\\n\\treturn 0.25;\\n}\\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\\n\\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\\n}\\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\\n\\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\\n\\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\\n\\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\\n\\tvec3 F = F_Schlick( specularColor, dotLH );\\n\\tfloat G = G_BlinnPhong_Implicit( );\\n\\tfloat D = D_BlinnPhong( shininess, dotNH );\\n\\treturn F * ( G * D );\\n}\\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\\n\\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\\n}\\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\\n\\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\\n}\\n\";\n\n\tvar bumpmap_pars_fragment = \"#ifdef USE_BUMPMAP\\n\\tuniform sampler2D bumpMap;\\n\\tuniform float bumpScale;\\n\\tvec2 dHdxy_fwd() {\\n\\t\\tvec2 dSTdx = dFdx( vUv );\\n\\t\\tvec2 dSTdy = dFdy( vUv );\\n\\t\\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\\n\\t\\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\\n\\t\\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\\n\\t\\treturn vec2( dBx, dBy );\\n\\t}\\n\\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\\n\\t\\tvec3 vSigmaX = dFdx( surf_pos );\\n\\t\\tvec3 vSigmaY = dFdy( surf_pos );\\n\\t\\tvec3 vN = surf_norm;\\n\\t\\tvec3 R1 = cross( vSigmaY, vN );\\n\\t\\tvec3 R2 = cross( vN, vSigmaX );\\n\\t\\tfloat fDet = dot( vSigmaX, R1 );\\n\\t\\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\\n\\t\\treturn normalize( abs( fDet ) * surf_norm - vGrad );\\n\\t}\\n#endif\\n\";\n\n\tvar clipping_planes_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; ++ i ) {\\n\\t\\tvec4 plane = clippingPlanes[ i ];\\n\\t\\tif ( dot( vViewPosition, plane.xyz ) > plane.w ) discard;\\n\\t}\\n\\t\\t\\n\\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\\n\\t\\tbool clipped = true;\\n\\t\\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; ++ i ) {\\n\\t\\t\\tvec4 plane = clippingPlanes[ i ];\\n\\t\\t\\tclipped = ( dot( vViewPosition, plane.xyz ) > plane.w ) && clipped;\\n\\t\\t}\\n\\t\\tif ( clipped ) discard;\\n\\t\\n\\t#endif\\n#endif\\n\";\n\n\tvar clipping_planes_pars_fragment = \"#if NUM_CLIPPING_PLANES > 0\\n\\t#if ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\t\\tvarying vec3 vViewPosition;\\n\\t#endif\\n\\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\\n#endif\\n\";\n\n\tvar clipping_planes_pars_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvarying vec3 vViewPosition;\\n#endif\\n\";\n\n\tvar clipping_planes_vertex = \"#if NUM_CLIPPING_PLANES > 0 && ! defined( PHYSICAL ) && ! defined( PHONG )\\n\\tvViewPosition = - mvPosition.xyz;\\n#endif\\n\";\n\n\tvar color_fragment = \"#ifdef USE_COLOR\\n\\tdiffuseColor.rgb *= vColor;\\n#endif\";\n\n\tvar color_pars_fragment = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\\n\";\n\n\tvar color_pars_vertex = \"#ifdef USE_COLOR\\n\\tvarying vec3 vColor;\\n#endif\";\n\n\tvar color_vertex = \"#ifdef USE_COLOR\\n\\tvColor.xyz = color.xyz;\\n#endif\";\n\n\tvar common = \"#define PI 3.14159265359\\n#define PI2 6.28318530718\\n#define RECIPROCAL_PI 0.31830988618\\n#define RECIPROCAL_PI2 0.15915494\\n#define LOG2 1.442695\\n#define EPSILON 1e-6\\n#define saturate(a) clamp( a, 0.0, 1.0 )\\n#define whiteCompliment(a) ( 1.0 - saturate( a ) )\\nfloat pow2( const in float x ) { return x*x; }\\nfloat pow3( const in float x ) { return x*x*x; }\\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\\nhighp float rand( const in vec2 uv ) {\\n\\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\\n\\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\\n\\treturn fract(sin(sn) * c);\\n}\\nstruct IncidentLight {\\n\\tvec3 color;\\n\\tvec3 direction;\\n\\tbool visible;\\n};\\nstruct ReflectedLight {\\n\\tvec3 directDiffuse;\\n\\tvec3 directSpecular;\\n\\tvec3 indirectDiffuse;\\n\\tvec3 indirectSpecular;\\n};\\nstruct GeometricContext {\\n\\tvec3 position;\\n\\tvec3 normal;\\n\\tvec3 viewDir;\\n};\\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\\n}\\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\\n\\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\\n}\\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\tfloat distance = dot( planeNormal, point - pointOnPlane );\\n\\treturn - distance * planeNormal + point;\\n}\\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn sign( dot( point - pointOnPlane, planeNormal ) );\\n}\\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\\n\\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\\n}\\n\";\n\n\tvar cube_uv_reflection_fragment = \"#ifdef ENVMAP_TYPE_CUBE_UV\\n#define cubeUV_textureSize (1024.0)\\nint getFaceFromDirection(vec3 direction) {\\n\\tvec3 absDirection = abs(direction);\\n\\tint face = -1;\\n\\tif( absDirection.x > absDirection.z ) {\\n\\t\\tif(absDirection.x > absDirection.y )\\n\\t\\t\\tface = direction.x > 0.0 ? 0 : 3;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\telse {\\n\\t\\tif(absDirection.z > absDirection.y )\\n\\t\\t\\tface = direction.z > 0.0 ? 2 : 5;\\n\\t\\telse\\n\\t\\t\\tface = direction.y > 0.0 ? 1 : 4;\\n\\t}\\n\\treturn face;\\n}\\n#define cubeUV_maxLods1 (log2(cubeUV_textureSize*0.25) - 1.0)\\n#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))\\nvec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {\\n\\tfloat scale = exp2(cubeUV_maxLods1 - roughnessLevel);\\n\\tfloat dxRoughness = dFdx(roughness);\\n\\tfloat dyRoughness = dFdy(roughness);\\n\\tvec3 dx = dFdx( vec * scale * dxRoughness );\\n\\tvec3 dy = dFdy( vec * scale * dyRoughness );\\n\\tfloat d = max( dot( dx, dx ), dot( dy, dy ) );\\n\\td = clamp(d, 1.0, cubeUV_rangeClamp);\\n\\tfloat mipLevel = 0.5 * log2(d);\\n\\treturn vec2(floor(mipLevel), fract(mipLevel));\\n}\\n#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)\\n#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)\\nvec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {\\n\\tmipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;\\n\\tfloat a = 16.0 * cubeUV_rcpTextureSize;\\n\\tvec2 exp2_packed = exp2( vec2( roughnessLevel, mipLevel ) );\\n\\tvec2 rcp_exp2_packed = vec2( 1.0 ) / exp2_packed;\\n\\tfloat powScale = exp2_packed.x * exp2_packed.y;\\n\\tfloat scale = rcp_exp2_packed.x * rcp_exp2_packed.y * 0.25;\\n\\tfloat mipOffset = 0.75*(1.0 - rcp_exp2_packed.y) * rcp_exp2_packed.x;\\n\\tbool bRes = mipLevel == 0.0;\\n\\tscale = bRes && (scale < a) ? a : scale;\\n\\tvec3 r;\\n\\tvec2 offset;\\n\\tint face = getFaceFromDirection(direction);\\n\\tfloat rcpPowScale = 1.0 / powScale;\\n\\tif( face == 0) {\\n\\t\\tr = vec3(direction.x, -direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 1) {\\n\\t\\tr = vec3(direction.y, direction.x, direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 2) {\\n\\t\\tr = vec3(direction.z, direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.75 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? a : offset.y;\\n\\t}\\n\\telse if( face == 3) {\\n\\t\\tr = vec3(direction.x, direction.z, direction.y);\\n\\t\\toffset = vec2(0.0+mipOffset,0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse if( face == 4) {\\n\\t\\tr = vec3(direction.y, direction.x, -direction.z);\\n\\t\\toffset = vec2(scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\telse {\\n\\t\\tr = vec3(direction.z, -direction.x, direction.y);\\n\\t\\toffset = vec2(2.0*scale+mipOffset, 0.5 * rcpPowScale);\\n\\t\\toffset.y = bRes && (offset.y < 2.0*a) ? 0.0 : offset.y;\\n\\t}\\n\\tr = normalize(r);\\n\\tfloat texelOffset = 0.5 * cubeUV_rcpTextureSize;\\n\\tvec2 s = ( r.yz / abs( r.x ) + vec2( 1.0 ) ) * 0.5;\\n\\tvec2 base = offset + vec2( texelOffset );\\n\\treturn base + s * ( scale - 2.0 * texelOffset );\\n}\\n#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)\\nvec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {\\n\\tfloat roughnessVal = roughness* cubeUV_maxLods3;\\n\\tfloat r1 = floor(roughnessVal);\\n\\tfloat r2 = r1 + 1.0;\\n\\tfloat t = fract(roughnessVal);\\n\\tvec2 mipInfo = MipLevelInfo(reflectedDirection, r1, roughness);\\n\\tfloat s = mipInfo.y;\\n\\tfloat level0 = mipInfo.x;\\n\\tfloat level1 = level0 + 1.0;\\n\\tlevel1 = level1 > 5.0 ? 5.0 : level1;\\n\\tlevel0 += min( floor( s + 0.5 ), 5.0 );\\n\\tvec2 uv_10 = getCubeUV(reflectedDirection, r1, level0);\\n\\tvec4 color10 = envMapTexelToLinear(texture2D(envMap, uv_10));\\n\\tvec2 uv_20 = getCubeUV(reflectedDirection, r2, level0);\\n\\tvec4 color20 = envMapTexelToLinear(texture2D(envMap, uv_20));\\n\\tvec4 result = mix(color10, color20, t);\\n\\treturn vec4(result.rgb, 1.0);\\n}\\n#endif\\n\";\n\n\tvar defaultnormal_vertex = \"#ifdef FLIP_SIDED\\n\\tobjectNormal = -objectNormal;\\n#endif\\nvec3 transformedNormal = normalMatrix * objectNormal;\\n\";\n\n\tvar displacementmap_pars_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\tuniform sampler2D displacementMap;\\n\\tuniform float displacementScale;\\n\\tuniform float displacementBias;\\n#endif\\n\";\n\n\tvar displacementmap_vertex = \"#ifdef USE_DISPLACEMENTMAP\\n\\ttransformed += normal * ( texture2D( displacementMap, uv ).x * displacementScale + displacementBias );\\n#endif\\n\";\n\n\tvar emissivemap_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\\n\\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\\n\\ttotalEmissiveRadiance *= emissiveColor.rgb;\\n#endif\\n\";\n\n\tvar emissivemap_pars_fragment = \"#ifdef USE_EMISSIVEMAP\\n\\tuniform sampler2D emissiveMap;\\n#endif\\n\";\n\n\tvar encodings_fragment = \" gl_FragColor = linearToOutputTexel( gl_FragColor );\\n\";\n\n\tvar encodings_pars_fragment = \"\\nvec4 LinearToLinear( in vec4 value ) {\\n return value;\\n}\\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\\n return vec4( pow( value.xyz, vec3( gammaFactor ) ), value.w );\\n}\\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\\n return vec4( pow( value.xyz, vec3( 1.0 / gammaFactor ) ), value.w );\\n}\\nvec4 sRGBToLinear( in vec4 value ) {\\n return vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.w );\\n}\\nvec4 LinearTosRGB( in vec4 value ) {\\n return vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.w );\\n}\\nvec4 RGBEToLinear( in vec4 value ) {\\n return vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\\n}\\nvec4 LinearToRGBE( in vec4 value ) {\\n float maxComponent = max( max( value.r, value.g ), value.b );\\n float fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\\n return vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\\n}\\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\\n return vec4( value.xyz * value.w * maxRange, 1.0 );\\n}\\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\\n float maxRGB = max( value.x, max( value.g, value.b ) );\\n float M = clamp( maxRGB / maxRange, 0.0, 1.0 );\\n M = ceil( M * 255.0 ) / 255.0;\\n return vec4( value.rgb / ( M * maxRange ), M );\\n}\\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\\n return vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\\n}\\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\\n float maxRGB = max( value.x, max( value.g, value.b ) );\\n float D = max( maxRange / maxRGB, 1.0 );\\n D = min( floor( D ) / 255.0, 1.0 );\\n return vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\\n}\\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\\nvec4 LinearToLogLuv( in vec4 value ) {\\n vec3 Xp_Y_XYZp = value.rgb * cLogLuvM;\\n Xp_Y_XYZp = max(Xp_Y_XYZp, vec3(1e-6, 1e-6, 1e-6));\\n vec4 vResult;\\n vResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\\n float Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\\n vResult.w = fract(Le);\\n vResult.z = (Le - (floor(vResult.w*255.0))/255.0)/255.0;\\n return vResult;\\n}\\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\\nvec4 LogLuvToLinear( in vec4 value ) {\\n float Le = value.z * 255.0 + value.w;\\n vec3 Xp_Y_XYZp;\\n Xp_Y_XYZp.y = exp2((Le - 127.0) / 2.0);\\n Xp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\\n Xp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\\n vec3 vRGB = Xp_Y_XYZp.rgb * cLogLuvInverseM;\\n return vec4( max(vRGB, 0.0), 1.0 );\\n}\\n\";\n\n\tvar envmap_fragment = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvec3 cameraToVertex = normalize( vWorldPosition - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#else\\n\\t\\tvec3 reflectVec = vReflect;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tvec4 envColor = textureCube( envMap, flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\\n\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\tvec2 sampleUV;\\n\\t\\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\\n\\t\\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\tvec4 envColor = texture2D( envMap, sampleUV );\\n\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\tvec3 reflectView = flipNormal * normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0, 0.0, 1.0 ) );\\n\\t\\tvec4 envColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5 );\\n\\t#else\\n\\t\\tvec4 envColor = vec4( 0.0 );\\n\\t#endif\\n\\tenvColor = envMapTexelToLinear( envColor );\\n\\t#ifdef ENVMAP_BLENDING_MULTIPLY\\n\\t\\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_MIX )\\n\\t\\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\\n\\t#elif defined( ENVMAP_BLENDING_ADD )\\n\\t\\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_fragment = \"#if defined( USE_ENVMAP ) || defined( PHYSICAL )\\n\\tuniform float reflectivity;\\n\\tuniform float envMapIntenstiy;\\n#endif\\n#ifdef USE_ENVMAP\\n\\t#if ! defined( PHYSICAL ) && ( defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#endif\\n\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\tuniform samplerCube envMap;\\n\\t#else\\n\\t\\tuniform sampler2D envMap;\\n\\t#endif\\n\\tuniform float flipEnvMap;\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG ) || defined( PHYSICAL )\\n\\t\\tuniform float refractionRatio;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_pars_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvarying vec3 vWorldPosition;\\n\\t#else\\n\\t\\tvarying vec3 vReflect;\\n\\t\\tuniform float refractionRatio;\\n\\t#endif\\n#endif\\n\";\n\n\tvar envmap_vertex = \"#ifdef USE_ENVMAP\\n\\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\\n\\t\\tvWorldPosition = worldPosition.xyz;\\n\\t#else\\n\\t\\tvec3 cameraToVertex = normalize( worldPosition.xyz - cameraPosition );\\n\\t\\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvReflect = reflect( cameraToVertex, worldNormal );\\n\\t\\t#else\\n\\t\\t\\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\\n\\t\\t#endif\\n\\t#endif\\n#endif\\n\";\n\n\tvar fog_fragment = \"#ifdef USE_FOG\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tfloat depth = gl_FragDepthEXT / gl_FragCoord.w;\\n\\t#else\\n\\t\\tfloat depth = gl_FragCoord.z / gl_FragCoord.w;\\n\\t#endif\\n\\t#ifdef FOG_EXP2\\n\\t\\tfloat fogFactor = whiteCompliment( exp2( - fogDensity * fogDensity * depth * depth * LOG2 ) );\\n\\t#else\\n\\t\\tfloat fogFactor = smoothstep( fogNear, fogFar, depth );\\n\\t#endif\\n\\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\\n#endif\\n\";\n\n\tvar fog_pars_fragment = \"#ifdef USE_FOG\\n\\tuniform vec3 fogColor;\\n\\t#ifdef FOG_EXP2\\n\\t\\tuniform float fogDensity;\\n\\t#else\\n\\t\\tuniform float fogNear;\\n\\t\\tuniform float fogFar;\\n\\t#endif\\n#endif\";\n\n\tvar lightmap_fragment = \"#ifdef USE_LIGHTMAP\\n\\treflectedLight.indirectDiffuse += PI * texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n#endif\\n\";\n\n\tvar lightmap_pars_fragment = \"#ifdef USE_LIGHTMAP\\n\\tuniform sampler2D lightMap;\\n\\tuniform float lightMapIntensity;\\n#endif\";\n\n\tvar lights_lambert_vertex = \"vec3 diffuse = vec3( 1.0 );\\nGeometricContext geometry;\\ngeometry.position = mvPosition.xyz;\\ngeometry.normal = normalize( transformedNormal );\\ngeometry.viewDir = normalize( -mvPosition.xyz );\\nGeometricContext backGeometry;\\nbackGeometry.position = geometry.position;\\nbackGeometry.normal = -geometry.normal;\\nbackGeometry.viewDir = geometry.viewDir;\\nvLightFront = vec3( 0.0 );\\n#ifdef DOUBLE_SIDED\\n\\tvLightBack = vec3( 0.0 );\\n#endif\\nIncidentLight directLight;\\nfloat dotNL;\\nvec3 directLightColor_Diffuse;\\n#if NUM_POINT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_DIR_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\\n\\t\\tdotNL = dot( geometry.normal, directLight.direction );\\n\\t\\tdirectLightColor_Diffuse = PI * directLight.color;\\n\\t\\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\\n\\t\\t#endif\\n\\t}\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\tvLightFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t#ifdef DOUBLE_SIDED\\n\\t\\t\\tvLightBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar lights_pars = \"uniform vec3 ambientLightColor;\\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\\n\\tvec3 irradiance = ambientLightColor;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treturn irradiance;\\n}\\n#if NUM_DIR_LIGHTS > 0\\n\\tstruct DirectionalLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\\n\\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tdirectLight.color = directionalLight.color;\\n\\t\\tdirectLight.direction = directionalLight.direction;\\n\\t\\tdirectLight.visible = true;\\n\\t}\\n#endif\\n#if NUM_POINT_LIGHTS > 0\\n\\tstruct PointLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\\n\\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = pointLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tif ( testLightInRange( lightDistance, pointLight.distance ) ) {\\n\\t\\t\\tdirectLight.color = pointLight.color;\\n\\t\\t\\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\\n\\t\\t\\tdirectLight.visible = true;\\n\\t\\t} else {\\n\\t\\t\\tdirectLight.color = vec3( 0.0 );\\n\\t\\t\\tdirectLight.visible = false;\\n\\t\\t}\\n\\t}\\n#endif\\n#if NUM_SPOT_LIGHTS > 0\\n\\tstruct SpotLight {\\n\\t\\tvec3 position;\\n\\t\\tvec3 direction;\\n\\t\\tvec3 color;\\n\\t\\tfloat distance;\\n\\t\\tfloat decay;\\n\\t\\tfloat coneCos;\\n\\t\\tfloat penumbraCos;\\n\\t\\tint shadow;\\n\\t\\tfloat shadowBias;\\n\\t\\tfloat shadowRadius;\\n\\t\\tvec2 shadowMapSize;\\n\\t};\\n\\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\\n\\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\\n\\t\\tvec3 lVector = spotLight.position - geometry.position;\\n\\t\\tdirectLight.direction = normalize( lVector );\\n\\t\\tfloat lightDistance = length( lVector );\\n\\t\\tfloat angleCos = dot( directLight.direction, spotLight.direction );\\n\\t\\tif ( all( bvec2( angleCos > spotLight.coneCos, testLightInRange( lightDistance, spotLight.distance ) ) ) ) {\\n\\t\\t\\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\\n\\t\\t\\tdirectLight.color = spotLight.color;\\n\\t\\t\\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\\n\\t\\t\\tdirectLight.visible = true;\\n\\t\\t} else {\\n\\t\\t\\tdirectLight.color = vec3( 0.0 );\\n\\t\\t\\tdirectLight.visible = false;\\n\\t\\t}\\n\\t}\\n#endif\\n#if NUM_HEMI_LIGHTS > 0\\n\\tstruct HemisphereLight {\\n\\t\\tvec3 direction;\\n\\t\\tvec3 skyColor;\\n\\t\\tvec3 groundColor;\\n\\t};\\n\\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\\n\\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\\n\\t\\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\\n\\t\\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\\n\\t\\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tirradiance *= PI;\\n\\t\\t#endif\\n\\t\\treturn irradiance;\\n\\t}\\n#endif\\n#if defined( USE_ENVMAP ) && defined( PHYSICAL )\\n\\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\\n\\t\\t#include \\n\\t\\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryVec = flipNormal * vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryVec = flipNormal * vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV( queryVec, 1.0 );\\n\\t\\t#else\\n\\t\\t\\tvec4 envMapColor = vec4( 0.0 );\\n\\t\\t#endif\\n\\t\\treturn PI * envMapColor.rgb * envMapIntensity;\\n\\t}\\n\\tfloat getSpecularMIPLevel( const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\tfloat maxMIPLevelScalar = float( maxMIPLevel );\\n\\t\\tfloat desiredMIPLevel = maxMIPLevelScalar - 0.79248 - 0.5 * log2( pow2( blinnShininessExponent ) + 1.0 );\\n\\t\\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\\n\\t}\\n\\tvec3 getLightProbeIndirectRadiance( const in GeometricContext geometry, const in float blinnShininessExponent, const in int maxMIPLevel ) {\\n\\t\\t#ifdef ENVMAP_MODE_REFLECTION\\n\\t\\t\\tvec3 reflectVec = reflect( -geometry.viewDir, geometry.normal );\\n\\t\\t#else\\n\\t\\t\\tvec3 reflectVec = refract( -geometry.viewDir, geometry.normal, refractionRatio );\\n\\t\\t#endif\\n\\t\\t#include \\n\\t\\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\\n\\t\\tfloat specularMIPLevel = getSpecularMIPLevel( blinnShininessExponent, maxMIPLevel );\\n\\t\\t#ifdef ENVMAP_TYPE_CUBE\\n\\t\\t\\tvec3 queryReflectVec = flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_CUBE_UV )\\n\\t\\t\\tvec3 queryReflectVec = flipNormal * vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\\n\\t\\t\\tvec4 envMapColor = textureCubeUV(queryReflectVec, BlinnExponentToGGXRoughness(blinnShininessExponent));\\n\\t\\t#elif defined( ENVMAP_TYPE_EQUIREC )\\n\\t\\t\\tvec2 sampleUV;\\n\\t\\t\\tsampleUV.y = saturate( flipNormal * reflectVec.y * 0.5 + 0.5 );\\n\\t\\t\\tsampleUV.x = atan( flipNormal * reflectVec.z, flipNormal * reflectVec.x ) * RECIPROCAL_PI2 + 0.5;\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, sampleUV, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#elif defined( ENVMAP_TYPE_SPHERE )\\n\\t\\t\\tvec3 reflectView = flipNormal * normalize( ( viewMatrix * vec4( reflectVec, 0.0 ) ).xyz + vec3( 0.0,0.0,1.0 ) );\\n\\t\\t\\t#ifdef TEXTURE_LOD_EXT\\n\\t\\t\\t\\tvec4 envMapColor = texture2DLodEXT( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#else\\n\\t\\t\\t\\tvec4 envMapColor = texture2D( envMap, reflectView.xy * 0.5 + 0.5, specularMIPLevel );\\n\\t\\t\\t#endif\\n\\t\\t\\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\\n\\t\\t#endif\\n\\t\\treturn envMapColor.rgb * envMapIntensity;\\n\\t}\\n#endif\\n\";\n\n\tvar lights_phong_fragment = \"BlinnPhongMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb;\\nmaterial.specularColor = specular;\\nmaterial.specularShininess = shininess;\\nmaterial.specularStrength = specularStrength;\\n\";\n\n\tvar lights_phong_pars_fragment = \"varying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\nstruct BlinnPhongMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tvec3\\tspecularColor;\\n\\tfloat\\tspecularShininess;\\n\\tfloat\\tspecularStrength;\\n};\\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\\n}\\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_BlinnPhong\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_BlinnPhong\\n#define Material_LightProbeLOD( material )\\t(0)\\n\";\n\n\tvar lights_physical_fragment = \"PhysicalMaterial material;\\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\\nmaterial.specularRoughness = clamp( roughnessFactor, 0.04, 1.0 );\\n#ifdef STANDARD\\n\\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\\n#else\\n\\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\\n\\tmaterial.clearCoat = saturate( clearCoat );\\tmaterial.clearCoatRoughness = clamp( clearCoatRoughness, 0.04, 1.0 );\\n#endif\\n\";\n\n\tvar lights_physical_pars_fragment = \"struct PhysicalMaterial {\\n\\tvec3\\tdiffuseColor;\\n\\tfloat\\tspecularRoughness;\\n\\tvec3\\tspecularColor;\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoat;\\n\\t\\tfloat clearCoatRoughness;\\n\\t#endif\\n};\\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\\nfloat clearCoatDHRApprox( const in float roughness, const in float dotNL ) {\\n\\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\\n}\\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\\n\\tvec3 irradiance = dotNL * directLight.color;\\n\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\tirradiance *= PI;\\n\\t#endif\\n\\t#ifndef STANDARD\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.directSpecular += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry, material.specularColor, material.specularRoughness );\\n\\treflectedLight.directDiffuse += ( 1.0 - clearCoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.directSpecular += irradiance * material.clearCoat * BRDF_Specular_GGX( directLight, geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\\n}\\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 clearCoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\\n\\t#ifndef STANDARD\\n\\t\\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\\n\\t\\tfloat dotNL = dotNV;\\n\\t\\tfloat clearCoatDHR = material.clearCoat * clearCoatDHRApprox( material.clearCoatRoughness, dotNL );\\n\\t#else\\n\\t\\tfloat clearCoatDHR = 0.0;\\n\\t#endif\\n\\treflectedLight.indirectSpecular += ( 1.0 - clearCoatDHR ) * radiance * BRDF_Specular_GGX_Environment( geometry, material.specularColor, material.specularRoughness );\\n\\t#ifndef STANDARD\\n\\t\\treflectedLight.indirectSpecular += clearCoatRadiance * material.clearCoat * BRDF_Specular_GGX_Environment( geometry, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearCoatRoughness );\\n\\t#endif\\n}\\n#define RE_Direct\\t\\t\\t\\tRE_Direct_Physical\\n#define RE_IndirectDiffuse\\t\\tRE_IndirectDiffuse_Physical\\n#define RE_IndirectSpecular\\t\\tRE_IndirectSpecular_Physical\\n#define Material_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.specularRoughness )\\n#define Material_ClearCoat_BlinnShininessExponent( material ) GGXRoughnessToBlinnExponent( material.clearCoatRoughness )\\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\\n\\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\\n}\\n\";\n\n\tvar lights_template = \"\\nGeometricContext geometry;\\ngeometry.position = - vViewPosition;\\ngeometry.normal = normal;\\ngeometry.viewDir = normalize( vViewPosition );\\nIncidentLight directLight;\\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tPointLight pointLight;\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( pointLight.shadow, directLight.visible ) ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tSpotLight spotLight;\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( spotLight.shadow, directLight.visible ) ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\\n\\tDirectionalLight directionalLight;\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\\n\\t\\t#ifdef USE_SHADOWMAP\\n\\t\\tdirectLight.color *= all( bvec2( directionalLight.shadow, directLight.visible ) ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t\\t#endif\\n\\t\\tRE_Direct( directLight, geometry, material, reflectedLight );\\n\\t}\\n#endif\\n#if defined( RE_IndirectDiffuse )\\n\\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\\n\\t#ifdef USE_LIGHTMAP\\n\\t\\tvec3 lightMapIrradiance = texture2D( lightMap, vUv2 ).xyz * lightMapIntensity;\\n\\t\\t#ifndef PHYSICALLY_CORRECT_LIGHTS\\n\\t\\t\\tlightMapIrradiance *= PI;\\n\\t\\t#endif\\n\\t\\tirradiance += lightMapIrradiance;\\n\\t#endif\\n\\t#if ( NUM_HEMI_LIGHTS > 0 )\\n\\t\\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\\n\\t\\t\\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\\n\\t\\t}\\n\\t#endif\\n\\t#if defined( USE_ENVMAP ) && defined( PHYSICAL ) && defined( ENVMAP_TYPE_CUBE_UV )\\n\\t \\tirradiance += getLightProbeIndirectIrradiance( geometry, 8 );\\n\\t#endif\\n\\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\\n#endif\\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\\n\\tvec3 radiance = getLightProbeIndirectRadiance( geometry, Material_BlinnShininessExponent( material ), 8 );\\n\\t#ifndef STANDARD\\n\\t\\tvec3 clearCoatRadiance = getLightProbeIndirectRadiance( geometry, Material_ClearCoat_BlinnShininessExponent( material ), 8 );\\n\\t#else\\n\\t\\tvec3 clearCoatRadiance = vec3( 0.0 );\\n\\t#endif\\n\\t\\t\\n\\tRE_IndirectSpecular( radiance, clearCoatRadiance, geometry, material, reflectedLight );\\n#endif\\n\";\n\n\tvar logdepthbuf_fragment = \"#if defined(USE_LOGDEPTHBUF) && defined(USE_LOGDEPTHBUF_EXT)\\n\\tgl_FragDepthEXT = log2(vFragDepth) * logDepthBufFC * 0.5;\\n#endif\";\n\n\tvar logdepthbuf_pars_fragment = \"#ifdef USE_LOGDEPTHBUF\\n\\tuniform float logDepthBufFC;\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n#endif\\n\";\n\n\tvar logdepthbuf_pars_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvarying float vFragDepth;\\n\\t#endif\\n\\tuniform float logDepthBufFC;\\n#endif\";\n\n\tvar logdepthbuf_vertex = \"#ifdef USE_LOGDEPTHBUF\\n\\tgl_Position.z = log2(max( EPSILON, gl_Position.w + 1.0 )) * logDepthBufFC;\\n\\t#ifdef USE_LOGDEPTHBUF_EXT\\n\\t\\tvFragDepth = 1.0 + gl_Position.w;\\n\\t#else\\n\\t\\tgl_Position.z = (gl_Position.z - 1.0) * gl_Position.w;\\n\\t#endif\\n#endif\\n\";\n\n\tvar map_fragment = \"#ifdef USE_MAP\\n\\tvec4 texelColor = texture2D( map, vUv );\\n\\ttexelColor = mapTexelToLinear( texelColor );\\n\\tdiffuseColor *= texelColor;\\n#endif\\n\";\n\n\tvar map_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar map_particle_fragment = \"#ifdef USE_MAP\\n\\tvec4 mapTexel = texture2D( map, vec2( gl_PointCoord.x, 1.0 - gl_PointCoord.y ) * offsetRepeat.zw + offsetRepeat.xy );\\n\\tdiffuseColor *= mapTexelToLinear( mapTexel );\\n#endif\\n\";\n\n\tvar map_particle_pars_fragment = \"#ifdef USE_MAP\\n\\tuniform vec4 offsetRepeat;\\n\\tuniform sampler2D map;\\n#endif\\n\";\n\n\tvar metalnessmap_fragment = \"float metalnessFactor = metalness;\\n#ifdef USE_METALNESSMAP\\n\\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\\n\\tmetalnessFactor *= texelMetalness.r;\\n#endif\\n\";\n\n\tvar metalnessmap_pars_fragment = \"#ifdef USE_METALNESSMAP\\n\\tuniform sampler2D metalnessMap;\\n#endif\";\n\n\tvar morphnormal_vertex = \"#ifdef USE_MORPHNORMALS\\n\\tobjectNormal += ( morphNormal0 - normal ) * morphTargetInfluences[ 0 ];\\n\\tobjectNormal += ( morphNormal1 - normal ) * morphTargetInfluences[ 1 ];\\n\\tobjectNormal += ( morphNormal2 - normal ) * morphTargetInfluences[ 2 ];\\n\\tobjectNormal += ( morphNormal3 - normal ) * morphTargetInfluences[ 3 ];\\n#endif\\n\";\n\n\tvar morphtarget_pars_vertex = \"#ifdef USE_MORPHTARGETS\\n\\t#ifndef USE_MORPHNORMALS\\n\\tuniform float morphTargetInfluences[ 8 ];\\n\\t#else\\n\\tuniform float morphTargetInfluences[ 4 ];\\n\\t#endif\\n#endif\";\n\n\tvar morphtarget_vertex = \"#ifdef USE_MORPHTARGETS\\n\\ttransformed += ( morphTarget0 - position ) * morphTargetInfluences[ 0 ];\\n\\ttransformed += ( morphTarget1 - position ) * morphTargetInfluences[ 1 ];\\n\\ttransformed += ( morphTarget2 - position ) * morphTargetInfluences[ 2 ];\\n\\ttransformed += ( morphTarget3 - position ) * morphTargetInfluences[ 3 ];\\n\\t#ifndef USE_MORPHNORMALS\\n\\ttransformed += ( morphTarget4 - position ) * morphTargetInfluences[ 4 ];\\n\\ttransformed += ( morphTarget5 - position ) * morphTargetInfluences[ 5 ];\\n\\ttransformed += ( morphTarget6 - position ) * morphTargetInfluences[ 6 ];\\n\\ttransformed += ( morphTarget7 - position ) * morphTargetInfluences[ 7 ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar normal_flip = \"#ifdef DOUBLE_SIDED\\n\\tfloat flipNormal = ( float( gl_FrontFacing ) * 2.0 - 1.0 );\\n#else\\n\\tfloat flipNormal = 1.0;\\n#endif\\n\";\n\n\tvar normal_fragment = \"#ifdef FLAT_SHADED\\n\\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\\n\\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\\n\\tvec3 normal = normalize( cross( fdx, fdy ) );\\n#else\\n\\tvec3 normal = normalize( vNormal ) * flipNormal;\\n#endif\\n#ifdef USE_NORMALMAP\\n\\tnormal = perturbNormal2Arb( -vViewPosition, normal );\\n#elif defined( USE_BUMPMAP )\\n\\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\\n#endif\\n\";\n\n\tvar normalmap_pars_fragment = \"#ifdef USE_NORMALMAP\\n\\tuniform sampler2D normalMap;\\n\\tuniform vec2 normalScale;\\n\\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm ) {\\n\\t\\tvec3 q0 = dFdx( eye_pos.xyz );\\n\\t\\tvec3 q1 = dFdy( eye_pos.xyz );\\n\\t\\tvec2 st0 = dFdx( vUv.st );\\n\\t\\tvec2 st1 = dFdy( vUv.st );\\n\\t\\tvec3 S = normalize( q0 * st1.t - q1 * st0.t );\\n\\t\\tvec3 T = normalize( -q0 * st1.s + q1 * st0.s );\\n\\t\\tvec3 N = normalize( surf_norm );\\n\\t\\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\\n\\t\\tmapN.xy = normalScale * mapN.xy;\\n\\t\\tmat3 tsn = mat3( S, T, N );\\n\\t\\treturn normalize( tsn * mapN );\\n\\t}\\n#endif\\n\";\n\n\tvar packing = \"vec3 packNormalToRGB( const in vec3 normal ) {\\n return normalize( normal ) * 0.5 + 0.5;\\n}\\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\\n return 1.0 - 2.0 * rgb.xyz;\\n}\\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\\nconst float ShiftRight8 = 1. / 256.;\\nvec4 packDepthToRGBA( const in float v ) {\\n\\tvec4 r = vec4( fract( v * PackFactors ), v );\\n\\tr.yzw -= r.xyz * ShiftRight8;\\treturn r * PackUpscale;\\n}\\nfloat unpackRGBAToDepth( const in vec4 v ) {\\n\\treturn dot( v, UnpackFactors );\\n}\\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\\n return ( viewZ + near ) / ( near - far );\\n}\\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\\n return linearClipZ * ( near - far ) - near;\\n}\\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\\n return (( near + viewZ ) * far ) / (( far - near ) * viewZ );\\n}\\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\\n return ( near * far ) / ( ( far - near ) * invClipZ - far );\\n}\\n\";\n\n\tvar premultiplied_alpha_fragment = \"#ifdef PREMULTIPLIED_ALPHA\\n\\tgl_FragColor.rgb *= gl_FragColor.a;\\n#endif\\n\";\n\n\tvar project_vertex = \"#ifdef USE_SKINNING\\n\\tvec4 mvPosition = modelViewMatrix * skinned;\\n#else\\n\\tvec4 mvPosition = modelViewMatrix * vec4( transformed, 1.0 );\\n#endif\\ngl_Position = projectionMatrix * mvPosition;\\n\";\n\n\tvar roughnessmap_fragment = \"float roughnessFactor = roughness;\\n#ifdef USE_ROUGHNESSMAP\\n\\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\\n\\troughnessFactor *= texelRoughness.r;\\n#endif\\n\";\n\n\tvar roughnessmap_pars_fragment = \"#ifdef USE_ROUGHNESSMAP\\n\\tuniform sampler2D roughnessMap;\\n#endif\";\n\n\tvar shadowmap_pars_fragment = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n\\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\\n\\t\\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\\n\\t}\\n\\tfloat texture2DShadowLerp( sampler2D depths, vec2 size, vec2 uv, float compare ) {\\n\\t\\tconst vec2 offset = vec2( 0.0, 1.0 );\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / size;\\n\\t\\tvec2 centroidUV = floor( uv * size + 0.5 ) / size;\\n\\t\\tfloat lb = texture2DCompare( depths, centroidUV + texelSize * offset.xx, compare );\\n\\t\\tfloat lt = texture2DCompare( depths, centroidUV + texelSize * offset.xy, compare );\\n\\t\\tfloat rb = texture2DCompare( depths, centroidUV + texelSize * offset.yx, compare );\\n\\t\\tfloat rt = texture2DCompare( depths, centroidUV + texelSize * offset.yy, compare );\\n\\t\\tvec2 f = fract( uv * size + 0.5 );\\n\\t\\tfloat a = mix( lb, lt, f.y );\\n\\t\\tfloat b = mix( rb, rt, f.y );\\n\\t\\tfloat c = mix( a, b, f.x );\\n\\t\\treturn c;\\n\\t}\\n\\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\\n\\t\\tshadowCoord.xyz /= shadowCoord.w;\\n\\t\\tshadowCoord.z += shadowBias;\\n\\t\\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\\n\\t\\tbool inFrustum = all( inFrustumVec );\\n\\t\\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\\n\\t\\tbool frustumTest = all( frustumTestVec );\\n\\t\\tif ( frustumTest ) {\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\\n\\t\\t\\tfloat dx0 = - texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy0 = - texelSize.y * shadowRadius;\\n\\t\\t\\tfloat dx1 = + texelSize.x * shadowRadius;\\n\\t\\t\\tfloat dy1 = + texelSize.y * shadowRadius;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy, shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\\n\\t\\t\\t\\ttexture2DShadowLerp( shadowMap, shadowMapSize, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\treturn texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\\n\\t\\t#endif\\n\\t\\t}\\n\\t\\treturn 1.0;\\n\\t}\\n\\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\\n\\t\\tvec3 absV = abs( v );\\n\\t\\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\\n\\t\\tabsV *= scaleToCube;\\n\\t\\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\\n\\t\\tvec2 planar = v.xy;\\n\\t\\tfloat almostATexel = 1.5 * texelSizeY;\\n\\t\\tfloat almostOne = 1.0 - almostATexel;\\n\\t\\tif ( absV.z >= almostOne ) {\\n\\t\\t\\tif ( v.z > 0.0 )\\n\\t\\t\\t\\tplanar.x = 4.0 - v.x;\\n\\t\\t} else if ( absV.x >= almostOne ) {\\n\\t\\t\\tfloat signX = sign( v.x );\\n\\t\\t\\tplanar.x = v.z * signX + 2.0 * signX;\\n\\t\\t} else if ( absV.y >= almostOne ) {\\n\\t\\t\\tfloat signY = sign( v.y );\\n\\t\\t\\tplanar.x = v.x + 2.0 * signY + 2.0;\\n\\t\\t\\tplanar.y = v.z * signY - 2.0;\\n\\t\\t}\\n\\t\\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\\n\\t}\\n\\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\\n\\t\\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\\n\\t\\tvec3 lightToPosition = shadowCoord.xyz;\\n\\t\\tvec3 bd3D = normalize( lightToPosition );\\n\\t\\tfloat dp = ( length( lightToPosition ) - shadowBias ) / 1000.0;\\n\\t\\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT )\\n\\t\\t\\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\\n\\t\\t\\treturn (\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\\n\\t\\t\\t\\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\\n\\t\\t\\t) * ( 1.0 / 9.0 );\\n\\t\\t#else\\n\\t\\t\\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\\n\\t\\t#endif\\n\\t}\\n#endif\\n\";\n\n\tvar shadowmap_pars_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\t\\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHTS ];\\n\\t\\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\t\\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHTS ];\\n\\t\\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHTS ];\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\t\\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHTS ];\\n\\t\\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHTS ];\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmap_vertex = \"#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * worldPosition;\\n\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar shadowmask_pars_fragment = \"float getShadowMask() {\\n\\tfloat shadow = 1.0;\\n\\t#ifdef USE_SHADOWMAP\\n\\t#if NUM_DIR_LIGHTS > 0\\n\\tDirectionalLight directionalLight;\\n\\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\\n\\t\\tdirectionalLight = directionalLights[ i ];\\n\\t\\tshadow *= bool( directionalLight.shadow ) ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_SPOT_LIGHTS > 0\\n\\tSpotLight spotLight;\\n\\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\\n\\t\\tspotLight = spotLights[ i ];\\n\\t\\tshadow *= bool( spotLight.shadow ) ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#if NUM_POINT_LIGHTS > 0\\n\\tPointLight pointLight;\\n\\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\\n\\t\\tpointLight = pointLights[ i ];\\n\\t\\tshadow *= bool( pointLight.shadow ) ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ] ) : 1.0;\\n\\t}\\n\\t#endif\\n\\t#endif\\n\\treturn shadow;\\n}\\n\";\n\n\tvar skinbase_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\\n\\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\\n\\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\\n\\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\\n#endif\";\n\n\tvar skinning_pars_vertex = \"#ifdef USE_SKINNING\\n\\tuniform mat4 bindMatrix;\\n\\tuniform mat4 bindMatrixInverse;\\n\\t#ifdef BONE_TEXTURE\\n\\t\\tuniform sampler2D boneTexture;\\n\\t\\tuniform int boneTextureWidth;\\n\\t\\tuniform int boneTextureHeight;\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tfloat j = i * 4.0;\\n\\t\\t\\tfloat x = mod( j, float( boneTextureWidth ) );\\n\\t\\t\\tfloat y = floor( j / float( boneTextureWidth ) );\\n\\t\\t\\tfloat dx = 1.0 / float( boneTextureWidth );\\n\\t\\t\\tfloat dy = 1.0 / float( boneTextureHeight );\\n\\t\\t\\ty = dy * ( y + 0.5 );\\n\\t\\t\\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\\n\\t\\t\\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\\n\\t\\t\\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\\n\\t\\t\\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\\n\\t\\t\\tmat4 bone = mat4( v1, v2, v3, v4 );\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#else\\n\\t\\tuniform mat4 boneMatrices[ MAX_BONES ];\\n\\t\\tmat4 getBoneMatrix( const in float i ) {\\n\\t\\t\\tmat4 bone = boneMatrices[ int(i) ];\\n\\t\\t\\treturn bone;\\n\\t\\t}\\n\\t#endif\\n#endif\\n\";\n\n\tvar skinning_vertex = \"#ifdef USE_SKINNING\\n\\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\\n\\tvec4 skinned = vec4( 0.0 );\\n\\tskinned += boneMatX * skinVertex * skinWeight.x;\\n\\tskinned += boneMatY * skinVertex * skinWeight.y;\\n\\tskinned += boneMatZ * skinVertex * skinWeight.z;\\n\\tskinned += boneMatW * skinVertex * skinWeight.w;\\n\\tskinned = bindMatrixInverse * skinned;\\n#endif\\n\";\n\n\tvar skinnormal_vertex = \"#ifdef USE_SKINNING\\n\\tmat4 skinMatrix = mat4( 0.0 );\\n\\tskinMatrix += skinWeight.x * boneMatX;\\n\\tskinMatrix += skinWeight.y * boneMatY;\\n\\tskinMatrix += skinWeight.z * boneMatZ;\\n\\tskinMatrix += skinWeight.w * boneMatW;\\n\\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\\n\\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\\n#endif\\n\";\n\n\tvar specularmap_fragment = \"float specularStrength;\\n#ifdef USE_SPECULARMAP\\n\\tvec4 texelSpecular = texture2D( specularMap, vUv );\\n\\tspecularStrength = texelSpecular.r;\\n#else\\n\\tspecularStrength = 1.0;\\n#endif\";\n\n\tvar specularmap_pars_fragment = \"#ifdef USE_SPECULARMAP\\n\\tuniform sampler2D specularMap;\\n#endif\";\n\n\tvar tonemapping_fragment = \"#if defined( TONE_MAPPING )\\n gl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\\n#endif\\n\";\n\n\tvar tonemapping_pars_fragment = \"#define saturate(a) clamp( a, 0.0, 1.0 )\\nuniform float toneMappingExposure;\\nuniform float toneMappingWhitePoint;\\nvec3 LinearToneMapping( vec3 color ) {\\n return toneMappingExposure * color;\\n}\\nvec3 ReinhardToneMapping( vec3 color ) {\\n color *= toneMappingExposure;\\n return saturate( color / ( vec3( 1.0 ) + color ) );\\n}\\n#define Uncharted2Helper( x ) max( ( ( x * ( 0.15 * x + 0.10 * 0.50 ) + 0.20 * 0.02 ) / ( x * ( 0.15 * x + 0.50 ) + 0.20 * 0.30 ) ) - 0.02 / 0.30, vec3( 0.0 ) )\\nvec3 Uncharted2ToneMapping( vec3 color ) {\\n color *= toneMappingExposure;\\n return saturate( Uncharted2Helper( color ) / Uncharted2Helper( vec3( toneMappingWhitePoint ) ) );\\n}\\nvec3 OptimizedCineonToneMapping( vec3 color ) {\\n color *= toneMappingExposure;\\n color = max( vec3( 0.0 ), color - 0.004 );\\n return pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\\n}\\n\";\n\n\tvar uv_pars_fragment = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n#endif\";\n\n\tvar uv_pars_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvarying vec2 vUv;\\n\\tuniform vec4 offsetRepeat;\\n#endif\\n\";\n\n\tvar uv_vertex = \"#if defined( USE_MAP ) || defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( USE_SPECULARMAP ) || defined( USE_ALPHAMAP ) || defined( USE_EMISSIVEMAP ) || defined( USE_ROUGHNESSMAP ) || defined( USE_METALNESSMAP )\\n\\tvUv = uv * offsetRepeat.zw + offsetRepeat.xy;\\n#endif\";\n\n\tvar uv2_pars_fragment = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_pars_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tattribute vec2 uv2;\\n\\tvarying vec2 vUv2;\\n#endif\";\n\n\tvar uv2_vertex = \"#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\\n\\tvUv2 = uv2;\\n#endif\";\n\n\tvar worldpos_vertex = \"#if defined( USE_ENVMAP ) || defined( PHONG ) || defined( PHYSICAL ) || defined( LAMBERT ) || defined ( USE_SHADOWMAP )\\n\\t#ifdef USE_SKINNING\\n\\t\\tvec4 worldPosition = modelMatrix * skinned;\\n\\t#else\\n\\t\\tvec4 worldPosition = modelMatrix * vec4( transformed, 1.0 );\\n\\t#endif\\n#endif\\n\";\n\n\tvar cube_frag = \"uniform samplerCube tCube;\\nuniform float tFlip;\\nuniform float opacity;\\nvarying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tgl_FragColor = textureCube( tCube, vec3( tFlip * vWorldPosition.x, vWorldPosition.yz ) );\\n\\tgl_FragColor.a *= opacity;\\n}\\n\";\n\n\tvar cube_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar depth_frag = \"#if DEPTH_PACKING == 3200\\n\\tuniform float opacity;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( 1.0 );\\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tdiffuseColor.a = opacity;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#if DEPTH_PACKING == 3200\\n\\t\\tgl_FragColor = vec4( vec3( gl_FragCoord.z ), opacity );\\n\\t#elif DEPTH_PACKING == 3201\\n\\t\\tgl_FragColor = packDepthToRGBA( gl_FragCoord.z );\\n\\t#endif\\n}\\n\";\n\n\tvar depth_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar distanceRGBA_frag = \"uniform vec3 lightPos;\\nvarying vec4 vWorldPosition;\\n#include \\n#include \\n#include \\nvoid main () {\\n\\t#include \\n\\tgl_FragColor = packDepthToRGBA( length( vWorldPosition.xyz - lightPos.xyz ) / 1000.0 );\\n}\\n\";\n\n\tvar distanceRGBA_vert = \"varying vec4 vWorldPosition;\\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvWorldPosition = worldPosition;\\n}\\n\";\n\n\tvar equirect_frag = \"uniform sampler2D tEquirect;\\nuniform float tFlip;\\nvarying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvec3 direction = normalize( vWorldPosition );\\n\\tvec2 sampleUV;\\n\\tsampleUV.y = saturate( tFlip * direction.y * -0.5 + 0.5 );\\n\\tsampleUV.x = atan( direction.z, direction.x ) * RECIPROCAL_PI2 + 0.5;\\n\\tgl_FragColor = texture2D( tEquirect, sampleUV );\\n}\\n\";\n\n\tvar equirect_vert = \"varying vec3 vWorldPosition;\\n#include \\nvoid main() {\\n\\tvWorldPosition = transformDirection( position, modelMatrix );\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\nuniform float dashSize;\\nuniform float totalSize;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\\n\\t\\tdiscard;\\n\\t}\\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar linedashed_vert = \"uniform float scale;\\nattribute float lineDistance;\\nvarying float vLineDistance;\\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvLineDistance = scale * lineDistance;\\n\\tvec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );\\n\\tgl_Position = projectionMatrix * mvPosition;\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tReflectedLight reflectedLight;\\n\\treflectedLight.directDiffuse = vec3( 0.0 );\\n\\treflectedLight.directSpecular = vec3( 0.0 );\\n\\treflectedLight.indirectDiffuse = diffuseColor.rgb;\\n\\treflectedLight.indirectSpecular = vec3( 0.0 );\\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\\n\\t#include \\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshbasic_vert = \"#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_ENVMAP\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_frag = \"uniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float opacity;\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\treflectedLight.indirectDiffuse = getAmbientLightIrradiance( ambientLightColor );\\n\\t#include \\n\\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\\n\\t#ifdef DOUBLE_SIDED\\n\\t\\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\\n\\t#else\\n\\t\\treflectedLight.directDiffuse = vLightFront;\\n\\t#endif\\n\\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\\n\\t#include \\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshlambert_vert = \"#define LAMBERT\\nvarying vec3 vLightFront;\\n#ifdef DOUBLE_SIDED\\n\\tvarying vec3 vLightBack;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_frag = \"#define PHONG\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform vec3 specular;\\nuniform float shininess;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\t#include \\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphong_vert = \"#define PHONG\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_frag = \"#define PHYSICAL\\nuniform vec3 diffuse;\\nuniform vec3 emissive;\\nuniform float roughness;\\nuniform float metalness;\\nuniform float opacity;\\n#ifndef STANDARD\\n\\tuniform float clearCoat;\\n\\tuniform float clearCoatRoughness;\\n#endif\\nuniform float envMapIntensity;\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\\n\\tvec3 totalEmissiveRadiance = emissive;\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar meshphysical_vert = \"#define PHYSICAL\\nvarying vec3 vViewPosition;\\n#ifndef FLAT_SHADED\\n\\tvarying vec3 vNormal;\\n#endif\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n#ifndef FLAT_SHADED\\n\\tvNormal = normalize( transformedNormal );\\n#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\tvViewPosition = - mvPosition.xyz;\\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar normal_frag = \"uniform float opacity;\\nvarying vec3 vNormal;\\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tgl_FragColor = vec4( packNormalToRGB( vNormal ), opacity );\\n\\t#include \\n}\\n\";\n\n\tvar normal_vert = \"varying vec3 vNormal;\\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\tvNormal = normalize( normalMatrix * normal );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar points_frag = \"uniform vec3 diffuse;\\nuniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\tvec3 outgoingLight = vec3( 0.0 );\\n\\tvec4 diffuseColor = vec4( diffuse, opacity );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n\\toutgoingLight = diffuseColor.rgb;\\n\\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar points_vert = \"uniform float size;\\nuniform float scale;\\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#ifdef USE_SIZEATTENUATION\\n\\t\\tgl_PointSize = size * ( scale / - mvPosition.z );\\n\\t#else\\n\\t\\tgl_PointSize = size;\\n\\t#endif\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar shadow_frag = \"uniform float opacity;\\n#include \\n#include \\n#include \\n#include \\n#include \\n#include \\nvoid main() {\\n\\tgl_FragColor = vec4( 0.0, 0.0, 0.0, opacity * ( 1.0 - getShadowMask() ) );\\n}\\n\";\n\n\tvar shadow_vert = \"#include \\nvoid main() {\\n\\t#include \\n\\t#include \\n\\t#include \\n\\t#include \\n}\\n\";\n\n\tvar ShaderChunk = {\n\t\talphamap_fragment: alphamap_fragment,\n\t\talphamap_pars_fragment: alphamap_pars_fragment,\n\t\talphatest_fragment: alphatest_fragment,\n\t\taomap_fragment: aomap_fragment,\n\t\taomap_pars_fragment: aomap_pars_fragment,\n\t\tbegin_vertex: begin_vertex,\n\t\tbeginnormal_vertex: beginnormal_vertex,\n\t\tbsdfs: bsdfs,\n\t\tbumpmap_pars_fragment: bumpmap_pars_fragment,\n\t\tclipping_planes_fragment: clipping_planes_fragment,\n\t\tclipping_planes_pars_fragment: clipping_planes_pars_fragment,\n\t\tclipping_planes_pars_vertex: clipping_planes_pars_vertex,\n\t\tclipping_planes_vertex: clipping_planes_vertex,\n\t\tcolor_fragment: color_fragment,\n\t\tcolor_pars_fragment: color_pars_fragment,\n\t\tcolor_pars_vertex: color_pars_vertex,\n\t\tcolor_vertex: color_vertex,\n\t\tcommon: common,\n\t\tcube_uv_reflection_fragment: cube_uv_reflection_fragment,\n\t\tdefaultnormal_vertex: defaultnormal_vertex,\n\t\tdisplacementmap_pars_vertex: displacementmap_pars_vertex,\n\t\tdisplacementmap_vertex: displacementmap_vertex,\n\t\temissivemap_fragment: emissivemap_fragment,\n\t\temissivemap_pars_fragment: emissivemap_pars_fragment,\n\t\tencodings_fragment: encodings_fragment,\n\t\tencodings_pars_fragment: encodings_pars_fragment,\n\t\tenvmap_fragment: envmap_fragment,\n\t\tenvmap_pars_fragment: envmap_pars_fragment,\n\t\tenvmap_pars_vertex: envmap_pars_vertex,\n\t\tenvmap_vertex: envmap_vertex,\n\t\tfog_fragment: fog_fragment,\n\t\tfog_pars_fragment: fog_pars_fragment,\n\t\tlightmap_fragment: lightmap_fragment,\n\t\tlightmap_pars_fragment: lightmap_pars_fragment,\n\t\tlights_lambert_vertex: lights_lambert_vertex,\n\t\tlights_pars: lights_pars,\n\t\tlights_phong_fragment: lights_phong_fragment,\n\t\tlights_phong_pars_fragment: lights_phong_pars_fragment,\n\t\tlights_physical_fragment: lights_physical_fragment,\n\t\tlights_physical_pars_fragment: lights_physical_pars_fragment,\n\t\tlights_template: lights_template,\n\t\tlogdepthbuf_fragment: logdepthbuf_fragment,\n\t\tlogdepthbuf_pars_fragment: logdepthbuf_pars_fragment,\n\t\tlogdepthbuf_pars_vertex: logdepthbuf_pars_vertex,\n\t\tlogdepthbuf_vertex: logdepthbuf_vertex,\n\t\tmap_fragment: map_fragment,\n\t\tmap_pars_fragment: map_pars_fragment,\n\t\tmap_particle_fragment: map_particle_fragment,\n\t\tmap_particle_pars_fragment: map_particle_pars_fragment,\n\t\tmetalnessmap_fragment: metalnessmap_fragment,\n\t\tmetalnessmap_pars_fragment: metalnessmap_pars_fragment,\n\t\tmorphnormal_vertex: morphnormal_vertex,\n\t\tmorphtarget_pars_vertex: morphtarget_pars_vertex,\n\t\tmorphtarget_vertex: morphtarget_vertex,\n\t\tnormal_flip: normal_flip,\n\t\tnormal_fragment: normal_fragment,\n\t\tnormalmap_pars_fragment: normalmap_pars_fragment,\n\t\tpacking: packing,\n\t\tpremultiplied_alpha_fragment: premultiplied_alpha_fragment,\n\t\tproject_vertex: project_vertex,\n\t\troughnessmap_fragment: roughnessmap_fragment,\n\t\troughnessmap_pars_fragment: roughnessmap_pars_fragment,\n\t\tshadowmap_pars_fragment: shadowmap_pars_fragment,\n\t\tshadowmap_pars_vertex: shadowmap_pars_vertex,\n\t\tshadowmap_vertex: shadowmap_vertex,\n\t\tshadowmask_pars_fragment: shadowmask_pars_fragment,\n\t\tskinbase_vertex: skinbase_vertex,\n\t\tskinning_pars_vertex: skinning_pars_vertex,\n\t\tskinning_vertex: skinning_vertex,\n\t\tskinnormal_vertex: skinnormal_vertex,\n\t\tspecularmap_fragment: specularmap_fragment,\n\t\tspecularmap_pars_fragment: specularmap_pars_fragment,\n\t\ttonemapping_fragment: tonemapping_fragment,\n\t\ttonemapping_pars_fragment: tonemapping_pars_fragment,\n\t\tuv_pars_fragment: uv_pars_fragment,\n\t\tuv_pars_vertex: uv_pars_vertex,\n\t\tuv_vertex: uv_vertex,\n\t\tuv2_pars_fragment: uv2_pars_fragment,\n\t\tuv2_pars_vertex: uv2_pars_vertex,\n\t\tuv2_vertex: uv2_vertex,\n\t\tworldpos_vertex: worldpos_vertex,\n\n\t\tcube_frag: cube_frag,\n\t\tcube_vert: cube_vert,\n\t\tdepth_frag: depth_frag,\n\t\tdepth_vert: depth_vert,\n\t\tdistanceRGBA_frag: distanceRGBA_frag,\n\t\tdistanceRGBA_vert: distanceRGBA_vert,\n\t\tequirect_frag: equirect_frag,\n\t\tequirect_vert: equirect_vert,\n\t\tlinedashed_frag: linedashed_frag,\n\t\tlinedashed_vert: linedashed_vert,\n\t\tmeshbasic_frag: meshbasic_frag,\n\t\tmeshbasic_vert: meshbasic_vert,\n\t\tmeshlambert_frag: meshlambert_frag,\n\t\tmeshlambert_vert: meshlambert_vert,\n\t\tmeshphong_frag: meshphong_frag,\n\t\tmeshphong_vert: meshphong_vert,\n\t\tmeshphysical_frag: meshphysical_frag,\n\t\tmeshphysical_vert: meshphysical_vert,\n\t\tnormal_frag: normal_frag,\n\t\tnormal_vert: normal_vert,\n\t\tpoints_frag: points_frag,\n\t\tpoints_vert: points_vert,\n\t\tshadow_frag: shadow_frag,\n\t\tshadow_vert: shadow_vert\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Color( r, g, b ) {\n\n\t\tif ( g === undefined && b === undefined ) {\n\n\t\t\t// r is THREE.Color, hex or string\n\t\t\treturn this.set( r );\n\n\t\t}\n\n\t\treturn this.setRGB( r, g, b );\n\n\t}\n\n\tColor.prototype = {\n\n\t\tconstructor: Color,\n\n\t\tisColor: true,\n\n\t\tr: 1, g: 1, b: 1,\n\n\t\tset: function ( value ) {\n\n\t\t\tif ( (value && value.isColor) ) {\n\n\t\t\t\tthis.copy( value );\n\n\t\t\t} else if ( typeof value === 'number' ) {\n\n\t\t\t\tthis.setHex( value );\n\n\t\t\t} else if ( typeof value === 'string' ) {\n\n\t\t\t\tthis.setStyle( value );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetScalar: function ( scalar ) {\n\n\t\t\tthis.r = scalar;\n\t\t\tthis.g = scalar;\n\t\t\tthis.b = scalar;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHex: function ( hex ) {\n\n\t\t\thex = Math.floor( hex );\n\n\t\t\tthis.r = ( hex >> 16 & 255 ) / 255;\n\t\t\tthis.g = ( hex >> 8 & 255 ) / 255;\n\t\t\tthis.b = ( hex & 255 ) / 255;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetRGB: function ( r, g, b ) {\n\n\t\t\tthis.r = r;\n\t\t\tthis.g = g;\n\t\t\tthis.b = b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetHSL: function () {\n\n\t\t\tfunction hue2rgb( p, q, t ) {\n\n\t\t\t\tif ( t < 0 ) t += 1;\n\t\t\t\tif ( t > 1 ) t -= 1;\n\t\t\t\tif ( t < 1 / 6 ) return p + ( q - p ) * 6 * t;\n\t\t\t\tif ( t < 1 / 2 ) return q;\n\t\t\t\tif ( t < 2 / 3 ) return p + ( q - p ) * 6 * ( 2 / 3 - t );\n\t\t\t\treturn p;\n\n\t\t\t}\n\n\t\t\treturn function setHSL( h, s, l ) {\n\n\t\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\t\t\t\th = _Math.euclideanModulo( h, 1 );\n\t\t\t\ts = _Math.clamp( s, 0, 1 );\n\t\t\t\tl = _Math.clamp( l, 0, 1 );\n\n\t\t\t\tif ( s === 0 ) {\n\n\t\t\t\t\tthis.r = this.g = this.b = l;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar p = l <= 0.5 ? l * ( 1 + s ) : l + s - ( l * s );\n\t\t\t\t\tvar q = ( 2 * l ) - p;\n\n\t\t\t\t\tthis.r = hue2rgb( q, p, h + 1 / 3 );\n\t\t\t\t\tthis.g = hue2rgb( q, p, h );\n\t\t\t\t\tthis.b = hue2rgb( q, p, h - 1 / 3 );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetStyle: function ( style ) {\n\n\t\t\tfunction handleAlpha( string ) {\n\n\t\t\t\tif ( string === undefined ) return;\n\n\t\t\t\tif ( parseFloat( string ) < 1 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.Color: Alpha component of ' + style + ' will be ignored.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tvar m;\n\n\t\t\tif ( m = /^((?:rgb|hsl)a?)\\(\\s*([^\\)]*)\\)/.exec( style ) ) {\n\n\t\t\t\t// rgb / hsl\n\n\t\t\t\tvar color;\n\t\t\t\tvar name = m[ 1 ];\n\t\t\t\tvar components = m[ 2 ];\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'rgb':\n\t\t\t\t\tcase 'rgba':\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(255,0,0) rgba(255,0,0,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 255, parseInt( color[ 1 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.g = Math.min( 255, parseInt( color[ 2 ], 10 ) ) / 255;\n\t\t\t\t\t\t\tthis.b = Math.min( 255, parseInt( color[ 3 ], 10 ) ) / 255;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( color = /^(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)\n\t\t\t\t\t\t\tthis.r = Math.min( 100, parseInt( color[ 1 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.g = Math.min( 100, parseInt( color[ 2 ], 10 ) ) / 100;\n\t\t\t\t\t\t\tthis.b = Math.min( 100, parseInt( color[ 3 ], 10 ) ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'hsl':\n\t\t\t\t\tcase 'hsla':\n\n\t\t\t\t\t\tif ( color = /^([0-9]*\\.?[0-9]+)\\s*,\\s*(\\d+)\\%\\s*,\\s*(\\d+)\\%\\s*(,\\s*([0-9]*\\.?[0-9]+)\\s*)?$/.exec( components ) ) {\n\n\t\t\t\t\t\t\t// hsl(120,50%,50%) hsla(120,50%,50%,0.5)\n\t\t\t\t\t\t\tvar h = parseFloat( color[ 1 ] ) / 360;\n\t\t\t\t\t\t\tvar s = parseInt( color[ 2 ], 10 ) / 100;\n\t\t\t\t\t\t\tvar l = parseInt( color[ 3 ], 10 ) / 100;\n\n\t\t\t\t\t\t\thandleAlpha( color[ 5 ] );\n\n\t\t\t\t\t\t\treturn this.setHSL( h, s, l );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t} else if ( m = /^\\#([A-Fa-f0-9]+)$/.exec( style ) ) {\n\n\t\t\t\t// hex color\n\n\t\t\t\tvar hex = m[ 1 ];\n\t\t\t\tvar size = hex.length;\n\n\t\t\t\tif ( size === 3 ) {\n\n\t\t\t\t\t// #ff0\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 0 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 1 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 2 ) + hex.charAt( 2 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t} else if ( size === 6 ) {\n\n\t\t\t\t\t// #ff0000\n\t\t\t\t\tthis.r = parseInt( hex.charAt( 0 ) + hex.charAt( 1 ), 16 ) / 255;\n\t\t\t\t\tthis.g = parseInt( hex.charAt( 2 ) + hex.charAt( 3 ), 16 ) / 255;\n\t\t\t\t\tthis.b = parseInt( hex.charAt( 4 ) + hex.charAt( 5 ), 16 ) / 255;\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( style && style.length > 0 ) {\n\n\t\t\t\t// color keywords\n\t\t\t\tvar hex = ColorKeywords[ style ];\n\n\t\t\t\tif ( hex !== undefined ) {\n\n\t\t\t\t\t// red\n\t\t\t\t\tthis.setHex( hex );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// unknown color\n\t\t\t\t\tconsole.warn( 'THREE.Color: Unknown color ' + style );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.r, this.g, this.b );\n\n\t\t},\n\n\t\tcopy: function ( color ) {\n\n\t\t\tthis.r = color.r;\n\t\t\tthis.g = color.g;\n\t\t\tthis.b = color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyGammaToLinear: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tthis.r = Math.pow( color.r, gammaFactor );\n\t\t\tthis.g = Math.pow( color.g, gammaFactor );\n\t\t\tthis.b = Math.pow( color.b, gammaFactor );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyLinearToGamma: function ( color, gammaFactor ) {\n\n\t\t\tif ( gammaFactor === undefined ) gammaFactor = 2.0;\n\n\t\t\tvar safeInverse = ( gammaFactor > 0 ) ? ( 1.0 / gammaFactor ) : 1.0;\n\n\t\t\tthis.r = Math.pow( color.r, safeInverse );\n\t\t\tthis.g = Math.pow( color.g, safeInverse );\n\t\t\tthis.b = Math.pow( color.b, safeInverse );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertGammaToLinear: function () {\n\n\t\t\tvar r = this.r, g = this.g, b = this.b;\n\n\t\t\tthis.r = r * r;\n\t\t\tthis.g = g * g;\n\t\t\tthis.b = b * b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconvertLinearToGamma: function () {\n\n\t\t\tthis.r = Math.sqrt( this.r );\n\t\t\tthis.g = Math.sqrt( this.g );\n\t\t\tthis.b = Math.sqrt( this.b );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetHex: function () {\n\n\t\t\treturn ( this.r * 255 ) << 16 ^ ( this.g * 255 ) << 8 ^ ( this.b * 255 ) << 0;\n\n\t\t},\n\n\t\tgetHexString: function () {\n\n\t\t\treturn ( '000000' + this.getHex().toString( 16 ) ).slice( - 6 );\n\n\t\t},\n\n\t\tgetHSL: function ( optionalTarget ) {\n\n\t\t\t// h,s,l ranges are in 0.0 - 1.0\n\n\t\t\tvar hsl = optionalTarget || { h: 0, s: 0, l: 0 };\n\n\t\t\tvar r = this.r, g = this.g, b = this.b;\n\n\t\t\tvar max = Math.max( r, g, b );\n\t\t\tvar min = Math.min( r, g, b );\n\n\t\t\tvar hue, saturation;\n\t\t\tvar lightness = ( min + max ) / 2.0;\n\n\t\t\tif ( min === max ) {\n\n\t\t\t\thue = 0;\n\t\t\t\tsaturation = 0;\n\n\t\t\t} else {\n\n\t\t\t\tvar delta = max - min;\n\n\t\t\t\tsaturation = lightness <= 0.5 ? delta / ( max + min ) : delta / ( 2 - max - min );\n\n\t\t\t\tswitch ( max ) {\n\n\t\t\t\t\tcase r: hue = ( g - b ) / delta + ( g < b ? 6 : 0 ); break;\n\t\t\t\t\tcase g: hue = ( b - r ) / delta + 2; break;\n\t\t\t\t\tcase b: hue = ( r - g ) / delta + 4; break;\n\n\t\t\t\t}\n\n\t\t\t\thue /= 6;\n\n\t\t\t}\n\n\t\t\thsl.h = hue;\n\t\t\thsl.s = saturation;\n\t\t\thsl.l = lightness;\n\n\t\t\treturn hsl;\n\n\t\t},\n\n\t\tgetStyle: function () {\n\n\t\t\treturn 'rgb(' + ( ( this.r * 255 ) | 0 ) + ',' + ( ( this.g * 255 ) | 0 ) + ',' + ( ( this.b * 255 ) | 0 ) + ')';\n\n\t\t},\n\n\t\toffsetHSL: function ( h, s, l ) {\n\n\t\t\tvar hsl = this.getHSL();\n\n\t\t\thsl.h += h; hsl.s += s; hsl.l += l;\n\n\t\t\tthis.setHSL( hsl.h, hsl.s, hsl.l );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( color ) {\n\n\t\t\tthis.r += color.r;\n\t\t\tthis.g += color.g;\n\t\t\tthis.b += color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddColors: function ( color1, color2 ) {\n\n\t\t\tthis.r = color1.r + color2.r;\n\t\t\tthis.g = color1.g + color2.g;\n\t\t\tthis.b = color1.b + color2.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddScalar: function ( s ) {\n\n\t\t\tthis.r += s;\n\t\t\tthis.g += s;\n\t\t\tthis.b += s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsub: function( color ) {\n\n\t\t\tthis.r = Math.max( 0, this.r - color.r );\n\t\t\tthis.g = Math.max( 0, this.g - color.g );\n\t\t\tthis.b = Math.max( 0, this.b - color.b );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiply: function ( color ) {\n\n\t\t\tthis.r *= color.r;\n\t\t\tthis.g *= color.g;\n\t\t\tthis.b *= color.b;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tthis.r *= s;\n\t\t\tthis.g *= s;\n\t\t\tthis.b *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tlerp: function ( color, alpha ) {\n\n\t\t\tthis.r += ( color.r - this.r ) * alpha;\n\t\t\tthis.g += ( color.g - this.g ) * alpha;\n\t\t\tthis.b += ( color.b - this.b ) * alpha;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( c ) {\n\n\t\t\treturn ( c.r === this.r ) && ( c.g === this.g ) && ( c.b === this.b );\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.r = array[ offset ];\n\t\t\tthis.g = array[ offset + 1 ];\n\t\t\tthis.b = array[ offset + 2 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this.r;\n\t\t\tarray[ offset + 1 ] = this.g;\n\t\t\tarray[ offset + 2 ] = this.b;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\treturn this.getHex();\n\n\t\t}\n\n\t};\n\n\tvar ColorKeywords = { 'aliceblue': 0xF0F8FF, 'antiquewhite': 0xFAEBD7, 'aqua': 0x00FFFF, 'aquamarine': 0x7FFFD4, 'azure': 0xF0FFFF,\n\t'beige': 0xF5F5DC, 'bisque': 0xFFE4C4, 'black': 0x000000, 'blanchedalmond': 0xFFEBCD, 'blue': 0x0000FF, 'blueviolet': 0x8A2BE2,\n\t'brown': 0xA52A2A, 'burlywood': 0xDEB887, 'cadetblue': 0x5F9EA0, 'chartreuse': 0x7FFF00, 'chocolate': 0xD2691E, 'coral': 0xFF7F50,\n\t'cornflowerblue': 0x6495ED, 'cornsilk': 0xFFF8DC, 'crimson': 0xDC143C, 'cyan': 0x00FFFF, 'darkblue': 0x00008B, 'darkcyan': 0x008B8B,\n\t'darkgoldenrod': 0xB8860B, 'darkgray': 0xA9A9A9, 'darkgreen': 0x006400, 'darkgrey': 0xA9A9A9, 'darkkhaki': 0xBDB76B, 'darkmagenta': 0x8B008B,\n\t'darkolivegreen': 0x556B2F, 'darkorange': 0xFF8C00, 'darkorchid': 0x9932CC, 'darkred': 0x8B0000, 'darksalmon': 0xE9967A, 'darkseagreen': 0x8FBC8F,\n\t'darkslateblue': 0x483D8B, 'darkslategray': 0x2F4F4F, 'darkslategrey': 0x2F4F4F, 'darkturquoise': 0x00CED1, 'darkviolet': 0x9400D3,\n\t'deeppink': 0xFF1493, 'deepskyblue': 0x00BFFF, 'dimgray': 0x696969, 'dimgrey': 0x696969, 'dodgerblue': 0x1E90FF, 'firebrick': 0xB22222,\n\t'floralwhite': 0xFFFAF0, 'forestgreen': 0x228B22, 'fuchsia': 0xFF00FF, 'gainsboro': 0xDCDCDC, 'ghostwhite': 0xF8F8FF, 'gold': 0xFFD700,\n\t'goldenrod': 0xDAA520, 'gray': 0x808080, 'green': 0x008000, 'greenyellow': 0xADFF2F, 'grey': 0x808080, 'honeydew': 0xF0FFF0, 'hotpink': 0xFF69B4,\n\t'indianred': 0xCD5C5C, 'indigo': 0x4B0082, 'ivory': 0xFFFFF0, 'khaki': 0xF0E68C, 'lavender': 0xE6E6FA, 'lavenderblush': 0xFFF0F5, 'lawngreen': 0x7CFC00,\n\t'lemonchiffon': 0xFFFACD, 'lightblue': 0xADD8E6, 'lightcoral': 0xF08080, 'lightcyan': 0xE0FFFF, 'lightgoldenrodyellow': 0xFAFAD2, 'lightgray': 0xD3D3D3,\n\t'lightgreen': 0x90EE90, 'lightgrey': 0xD3D3D3, 'lightpink': 0xFFB6C1, 'lightsalmon': 0xFFA07A, 'lightseagreen': 0x20B2AA, 'lightskyblue': 0x87CEFA,\n\t'lightslategray': 0x778899, 'lightslategrey': 0x778899, 'lightsteelblue': 0xB0C4DE, 'lightyellow': 0xFFFFE0, 'lime': 0x00FF00, 'limegreen': 0x32CD32,\n\t'linen': 0xFAF0E6, 'magenta': 0xFF00FF, 'maroon': 0x800000, 'mediumaquamarine': 0x66CDAA, 'mediumblue': 0x0000CD, 'mediumorchid': 0xBA55D3,\n\t'mediumpurple': 0x9370DB, 'mediumseagreen': 0x3CB371, 'mediumslateblue': 0x7B68EE, 'mediumspringgreen': 0x00FA9A, 'mediumturquoise': 0x48D1CC,\n\t'mediumvioletred': 0xC71585, 'midnightblue': 0x191970, 'mintcream': 0xF5FFFA, 'mistyrose': 0xFFE4E1, 'moccasin': 0xFFE4B5, 'navajowhite': 0xFFDEAD,\n\t'navy': 0x000080, 'oldlace': 0xFDF5E6, 'olive': 0x808000, 'olivedrab': 0x6B8E23, 'orange': 0xFFA500, 'orangered': 0xFF4500, 'orchid': 0xDA70D6,\n\t'palegoldenrod': 0xEEE8AA, 'palegreen': 0x98FB98, 'paleturquoise': 0xAFEEEE, 'palevioletred': 0xDB7093, 'papayawhip': 0xFFEFD5, 'peachpuff': 0xFFDAB9,\n\t'peru': 0xCD853F, 'pink': 0xFFC0CB, 'plum': 0xDDA0DD, 'powderblue': 0xB0E0E6, 'purple': 0x800080, 'red': 0xFF0000, 'rosybrown': 0xBC8F8F,\n\t'royalblue': 0x4169E1, 'saddlebrown': 0x8B4513, 'salmon': 0xFA8072, 'sandybrown': 0xF4A460, 'seagreen': 0x2E8B57, 'seashell': 0xFFF5EE,\n\t'sienna': 0xA0522D, 'silver': 0xC0C0C0, 'skyblue': 0x87CEEB, 'slateblue': 0x6A5ACD, 'slategray': 0x708090, 'slategrey': 0x708090, 'snow': 0xFFFAFA,\n\t'springgreen': 0x00FF7F, 'steelblue': 0x4682B4, 'tan': 0xD2B48C, 'teal': 0x008080, 'thistle': 0xD8BFD8, 'tomato': 0xFF6347, 'turquoise': 0x40E0D0,\n\t'violet': 0xEE82EE, 'wheat': 0xF5DEB3, 'white': 0xFFFFFF, 'whitesmoke': 0xF5F5F5, 'yellow': 0xFFFF00, 'yellowgreen': 0x9ACD32 };\n\n\t/**\n\t * Uniforms library for shared webgl shaders\n\t */\n\n\tvar UniformsLib = {\n\n\t\tcommon: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\n\t\t\tmap: { value: null },\n\t\t\toffsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) },\n\n\t\t\tspecularMap: { value: null },\n\t\t\talphaMap: { value: null },\n\n\t\t\tenvMap: { value: null },\n\t\t\tflipEnvMap: { value: - 1 },\n\t\t\treflectivity: { value: 1.0 },\n\t\t\trefractionRatio: { value: 0.98 }\n\n\t\t},\n\n\t\taomap: {\n\n\t\t\taoMap: { value: null },\n\t\t\taoMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\tlightmap: {\n\n\t\t\tlightMap: { value: null },\n\t\t\tlightMapIntensity: { value: 1 }\n\n\t\t},\n\n\t\temissivemap: {\n\n\t\t\temissiveMap: { value: null }\n\n\t\t},\n\n\t\tbumpmap: {\n\n\t\t\tbumpMap: { value: null },\n\t\t\tbumpScale: { value: 1 }\n\n\t\t},\n\n\t\tnormalmap: {\n\n\t\t\tnormalMap: { value: null },\n\t\t\tnormalScale: { value: new Vector2( 1, 1 ) }\n\n\t\t},\n\n\t\tdisplacementmap: {\n\n\t\t\tdisplacementMap: { value: null },\n\t\t\tdisplacementScale: { value: 1 },\n\t\t\tdisplacementBias: { value: 0 }\n\n\t\t},\n\n\t\troughnessmap: {\n\n\t\t\troughnessMap: { value: null }\n\n\t\t},\n\n\t\tmetalnessmap: {\n\n\t\t\tmetalnessMap: { value: null }\n\n\t\t},\n\n\t\tfog: {\n\n\t\t\tfogDensity: { value: 0.00025 },\n\t\t\tfogNear: { value: 1 },\n\t\t\tfogFar: { value: 2000 },\n\t\t\tfogColor: { value: new Color( 0xffffff ) }\n\n\t\t},\n\n\t\tlights: {\n\n\t\t\tambientLightColor: { value: [] },\n\n\t\t\tdirectionalLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tcolor: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tdirectionalShadowMap: { value: [] },\n\t\t\tdirectionalShadowMatrix: { value: [] },\n\n\t\t\tspotLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdirection: {},\n\t\t\t\tdistance: {},\n\t\t\t\tconeCos: {},\n\t\t\t\tpenumbraCos: {},\n\t\t\t\tdecay: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tspotShadowMap: { value: [] },\n\t\t\tspotShadowMatrix: { value: [] },\n\n\t\t\tpointLights: { value: [], properties: {\n\t\t\t\tcolor: {},\n\t\t\t\tposition: {},\n\t\t\t\tdecay: {},\n\t\t\t\tdistance: {},\n\n\t\t\t\tshadow: {},\n\t\t\t\tshadowBias: {},\n\t\t\t\tshadowRadius: {},\n\t\t\t\tshadowMapSize: {}\n\t\t\t} },\n\n\t\t\tpointShadowMap: { value: [] },\n\t\t\tpointShadowMatrix: { value: [] },\n\n\t\t\themisphereLights: { value: [], properties: {\n\t\t\t\tdirection: {},\n\t\t\t\tskyColor: {},\n\t\t\t\tgroundColor: {}\n\t\t\t} }\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tdiffuse: { value: new Color( 0xeeeeee ) },\n\t\t\topacity: { value: 1.0 },\n\t\t\tsize: { value: 1.0 },\n\t\t\tscale: { value: 1.0 },\n\t\t\tmap: { value: null },\n\t\t\toffsetRepeat: { value: new Vector4( 0, 0, 1, 1 ) }\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t */\n\n\tvar ShaderLib = {\n\n\t\tbasic: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.fog\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshbasic_vert,\n\t\t\tfragmentShader: ShaderChunk.meshbasic_frag\n\n\t\t},\n\n\t\tlambert: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\n\t\t\t\t{\n\t\t\t\t\temissive : { value: new Color( 0x000000 ) }\n\t\t\t\t}\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshlambert_vert,\n\t\t\tfragmentShader: ShaderChunk.meshlambert_frag\n\n\t\t},\n\n\t\tphong: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\n\t\t\t\t{\n\t\t\t\t\temissive : { value: new Color( 0x000000 ) },\n\t\t\t\t\tspecular : { value: new Color( 0x111111 ) },\n\t\t\t\t\tshininess: { value: 30 }\n\t\t\t\t}\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphong_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphong_frag\n\n\t\t},\n\n\t\tstandard: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.aomap,\n\t\t\t\tUniformsLib.lightmap,\n\t\t\t\tUniformsLib.emissivemap,\n\t\t\t\tUniformsLib.bumpmap,\n\t\t\t\tUniformsLib.normalmap,\n\t\t\t\tUniformsLib.displacementmap,\n\t\t\t\tUniformsLib.roughnessmap,\n\t\t\t\tUniformsLib.metalnessmap,\n\t\t\t\tUniformsLib.fog,\n\t\t\t\tUniformsLib.lights,\n\n\t\t\t\t{\n\t\t\t\t\temissive : { value: new Color( 0x000000 ) },\n\t\t\t\t\troughness: { value: 0.5 },\n\t\t\t\t\tmetalness: { value: 0 },\n\t\t\t\t\tenvMapIntensity : { value: 1 }, // temporary\n\t\t\t\t}\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t\t},\n\n\t\tpoints: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.points,\n\t\t\t\tUniformsLib.fog\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.points_vert,\n\t\t\tfragmentShader: ShaderChunk.points_frag\n\n\t\t},\n\n\t\tdashed: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.fog,\n\n\t\t\t\t{\n\t\t\t\t\tscale : { value: 1 },\n\t\t\t\t\tdashSize : { value: 1 },\n\t\t\t\t\ttotalSize: { value: 2 }\n\t\t\t\t}\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.linedashed_vert,\n\t\t\tfragmentShader: ShaderChunk.linedashed_frag\n\n\t\t},\n\n\t\tdepth: {\n\n\t\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\t\tUniformsLib.common,\n\t\t\t\tUniformsLib.displacementmap\n\n\t\t\t] ),\n\n\t\t\tvertexShader: ShaderChunk.depth_vert,\n\t\t\tfragmentShader: ShaderChunk.depth_frag\n\n\t\t},\n\n\t\tnormal: {\n\n\t\t\tuniforms: {\n\n\t\t\t\topacity : { value: 1.0 }\n\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.normal_vert,\n\t\t\tfragmentShader: ShaderChunk.normal_frag\n\n\t\t},\n\n\t\t/* -------------------------------------------------------------------------\n\t\t//\tCube map shader\n\t\t ------------------------------------------------------------------------- */\n\n\t\tcube: {\n\n\t\t\tuniforms: {\n\t\t\t\ttCube: { value: null },\n\t\t\t\ttFlip: { value: - 1 },\n\t\t\t\topacity: { value: 1.0 }\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.cube_vert,\n\t\t\tfragmentShader: ShaderChunk.cube_frag\n\n\t\t},\n\n\t\t/* -------------------------------------------------------------------------\n\t\t//\tCube map shader\n\t\t ------------------------------------------------------------------------- */\n\n\t\tequirect: {\n\n\t\t\tuniforms: {\n\t\t\t\ttEquirect: { value: null },\n\t\t\t\ttFlip: { value: - 1 }\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.equirect_vert,\n\t\t\tfragmentShader: ShaderChunk.equirect_frag\n\n\t\t},\n\n\t\tdistanceRGBA: {\n\n\t\t\tuniforms: {\n\n\t\t\t\tlightPos: { value: new Vector3() }\n\n\t\t\t},\n\n\t\t\tvertexShader: ShaderChunk.distanceRGBA_vert,\n\t\t\tfragmentShader: ShaderChunk.distanceRGBA_frag\n\n\t\t}\n\n\t};\n\n\tShaderLib.physical = {\n\n\t\tuniforms: UniformsUtils.merge( [\n\n\t\t\tShaderLib.standard.uniforms,\n\n\t\t\t{\n\t\t\t\tclearCoat: { value: 0 },\n\t\t\t\tclearCoatRoughness: { value: 0 }\n\t\t\t}\n\n\t\t] ),\n\n\t\tvertexShader: ShaderChunk.meshphysical_vert,\n\t\tfragmentShader: ShaderChunk.meshphysical_frag\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Box2( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector2( + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector2( - Infinity, - Infinity );\n\n\t}\n\n\tBox2.prototype = {\n\n\t\tconstructor: Box2,\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = + Infinity;\n\t\t\tthis.max.x = this.max.y = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y );\n\n\t\t},\n\n\t\tgetCenter: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector2();\n\t\t\treturn this.isEmpty() ? result.set( 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector2();\n\t\t\treturn this.isEmpty() ? result.set( 0, 0 ) : result.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\tif ( point.x < this.min.x || point.x > this.max.x ||\n\t\t\t point.y < this.min.y || point.y > this.max.y ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\tif ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) &&\n\t\t\t ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tgetParameter: function ( point, optionalTarget ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tvar result = optionalTarget || new Vector2();\n\n\t\t\treturn result.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 6 splitting planes to rule out intersections.\n\n\t\t\tif ( box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t box.max.y < this.min.y || box.min.y > this.max.y ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tclampPoint: function ( point, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector2();\n\t\t\treturn result.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector2();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction LensFlarePlugin( renderer, flares ) {\n\n\t\tvar gl = renderer.context;\n\t\tvar state = renderer.state;\n\n\t\tvar vertexBuffer, elementBuffer;\n\t\tvar shader, program, attributes, uniforms;\n\n\t\tvar tempTexture, occlusionTexture;\n\n\t\tfunction init() {\n\n\t\t\tvar vertices = new Float32Array( [\n\t\t\t\t- 1, - 1, 0, 0,\n\t\t\t\t 1, - 1, 1, 0,\n\t\t\t\t 1, 1, 1, 1,\n\t\t\t\t- 1, 1, 0, 1\n\t\t\t] );\n\n\t\t\tvar faces = new Uint16Array( [\n\t\t\t\t0, 1, 2,\n\t\t\t\t0, 2, 3\n\t\t\t] );\n\n\t\t\t// buffers\n\n\t\t\tvertexBuffer = gl.createBuffer();\n\t\t\telementBuffer = gl.createBuffer();\n\n\t\t\tgl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );\n\t\t\tgl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );\n\n\t\t\tgl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );\n\t\t\tgl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );\n\n\t\t\t// textures\n\n\t\t\ttempTexture = gl.createTexture();\n\t\t\tocclusionTexture = gl.createTexture();\n\n\t\t\tstate.bindTexture( gl.TEXTURE_2D, tempTexture );\n\t\t\tgl.texImage2D( gl.TEXTURE_2D, 0, gl.RGB, 16, 16, 0, gl.RGB, gl.UNSIGNED_BYTE, null );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );\n\n\t\t\tstate.bindTexture( gl.TEXTURE_2D, occlusionTexture );\n\t\t\tgl.texImage2D( gl.TEXTURE_2D, 0, gl.RGBA, 16, 16, 0, gl.RGBA, gl.UNSIGNED_BYTE, null );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST );\n\t\t\tgl.texParameteri( gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST );\n\n\t\t\tshader = {\n\n\t\t\t\tvertexShader: [\n\n\t\t\t\t\t\"uniform lowp int renderType;\",\n\n\t\t\t\t\t\"uniform vec3 screenPosition;\",\n\t\t\t\t\t\"uniform vec2 scale;\",\n\t\t\t\t\t\"uniform float rotation;\",\n\n\t\t\t\t\t\"uniform sampler2D occlusionMap;\",\n\n\t\t\t\t\t\"attribute vec2 position;\",\n\t\t\t\t\t\"attribute vec2 uv;\",\n\n\t\t\t\t\t\"varying vec2 vUV;\",\n\t\t\t\t\t\"varying float vVisibility;\",\n\n\t\t\t\t\t\"void main() {\",\n\n\t\t\t\t\t\t\"vUV = uv;\",\n\n\t\t\t\t\t\t\"vec2 pos = position;\",\n\n\t\t\t\t\t\t\"if ( renderType == 2 ) {\",\n\n\t\t\t\t\t\t\t\"vec4 visibility = texture2D( occlusionMap, vec2( 0.1, 0.1 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.5, 0.1 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.9, 0.1 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.9, 0.5 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.9, 0.9 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.5, 0.9 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.1, 0.9 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.1, 0.5 ) );\",\n\t\t\t\t\t\t\t\"visibility += texture2D( occlusionMap, vec2( 0.5, 0.5 ) );\",\n\n\t\t\t\t\t\t\t\"vVisibility = visibility.r / 9.0;\",\n\t\t\t\t\t\t\t\"vVisibility *= 1.0 - visibility.g / 9.0;\",\n\t\t\t\t\t\t\t\"vVisibility *= visibility.b / 9.0;\",\n\t\t\t\t\t\t\t\"vVisibility *= 1.0 - visibility.a / 9.0;\",\n\n\t\t\t\t\t\t\t\"pos.x = cos( rotation ) * position.x - sin( rotation ) * position.y;\",\n\t\t\t\t\t\t\t\"pos.y = sin( rotation ) * position.x + cos( rotation ) * position.y;\",\n\n\t\t\t\t\t\t\"}\",\n\n\t\t\t\t\t\t\"gl_Position = vec4( ( pos * scale + screenPosition.xy ).xy, screenPosition.z, 1.0 );\",\n\n\t\t\t\t\t\"}\"\n\n\t\t\t\t].join( \"\\n\" ),\n\n\t\t\t\tfragmentShader: [\n\n\t\t\t\t\t\"uniform lowp int renderType;\",\n\n\t\t\t\t\t\"uniform sampler2D map;\",\n\t\t\t\t\t\"uniform float opacity;\",\n\t\t\t\t\t\"uniform vec3 color;\",\n\n\t\t\t\t\t\"varying vec2 vUV;\",\n\t\t\t\t\t\"varying float vVisibility;\",\n\n\t\t\t\t\t\"void main() {\",\n\n\t\t\t\t\t\t// pink square\n\n\t\t\t\t\t\t\"if ( renderType == 0 ) {\",\n\n\t\t\t\t\t\t\t\"gl_FragColor = vec4( 1.0, 0.0, 1.0, 0.0 );\",\n\n\t\t\t\t\t\t// restore\n\n\t\t\t\t\t\t\"} else if ( renderType == 1 ) {\",\n\n\t\t\t\t\t\t\t\"gl_FragColor = texture2D( map, vUV );\",\n\n\t\t\t\t\t\t// flare\n\n\t\t\t\t\t\t\"} else {\",\n\n\t\t\t\t\t\t\t\"vec4 texture = texture2D( map, vUV );\",\n\t\t\t\t\t\t\t\"texture.a *= opacity * vVisibility;\",\n\t\t\t\t\t\t\t\"gl_FragColor = texture;\",\n\t\t\t\t\t\t\t\"gl_FragColor.rgb *= color;\",\n\n\t\t\t\t\t\t\"}\",\n\n\t\t\t\t\t\"}\"\n\n\t\t\t\t].join( \"\\n\" )\n\n\t\t\t};\n\n\t\t\tprogram = createProgram( shader );\n\n\t\t\tattributes = {\n\t\t\t\tvertex: gl.getAttribLocation ( program, \"position\" ),\n\t\t\t\tuv: gl.getAttribLocation ( program, \"uv\" )\n\t\t\t};\n\n\t\t\tuniforms = {\n\t\t\t\trenderType: gl.getUniformLocation( program, \"renderType\" ),\n\t\t\t\tmap: gl.getUniformLocation( program, \"map\" ),\n\t\t\t\tocclusionMap: gl.getUniformLocation( program, \"occlusionMap\" ),\n\t\t\t\topacity: gl.getUniformLocation( program, \"opacity\" ),\n\t\t\t\tcolor: gl.getUniformLocation( program, \"color\" ),\n\t\t\t\tscale: gl.getUniformLocation( program, \"scale\" ),\n\t\t\t\trotation: gl.getUniformLocation( program, \"rotation\" ),\n\t\t\t\tscreenPosition: gl.getUniformLocation( program, \"screenPosition\" )\n\t\t\t};\n\n\t\t}\n\n\t\t/*\n\t\t * Render lens flares\n\t\t * Method: renders 16x16 0xff00ff-colored points scattered over the light source area,\n\t\t * reads these back and calculates occlusion.\n\t\t */\n\n\t\tthis.render = function ( scene, camera, viewport ) {\n\n\t\t\tif ( flares.length === 0 ) return;\n\n\t\t\tvar tempPosition = new Vector3();\n\n\t\t\tvar invAspect = viewport.w / viewport.z,\n\t\t\t\thalfViewportWidth = viewport.z * 0.5,\n\t\t\t\thalfViewportHeight = viewport.w * 0.5;\n\n\t\t\tvar size = 16 / viewport.w,\n\t\t\t\tscale = new Vector2( size * invAspect, size );\n\n\t\t\tvar screenPosition = new Vector3( 1, 1, 0 ),\n\t\t\t\tscreenPositionPixels = new Vector2( 1, 1 );\n\n\t\t\tvar validArea = new Box2();\n\n\t\t\tvalidArea.min.set( viewport.x, viewport.y );\n\t\t\tvalidArea.max.set( viewport.x + ( viewport.z - 16 ), viewport.y + ( viewport.w - 16 ) );\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\tinit();\n\n\t\t\t}\n\n\t\t\tgl.useProgram( program );\n\n\t\t\tstate.initAttributes();\n\t\t\tstate.enableAttribute( attributes.vertex );\n\t\t\tstate.enableAttribute( attributes.uv );\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t\t// loop through all lens flares to update their occlusion and positions\n\t\t\t// setup gl and common used attribs/uniforms\n\n\t\t\tgl.uniform1i( uniforms.occlusionMap, 0 );\n\t\t\tgl.uniform1i( uniforms.map, 1 );\n\n\t\t\tgl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );\n\t\t\tgl.vertexAttribPointer( attributes.vertex, 2, gl.FLOAT, false, 2 * 8, 0 );\n\t\t\tgl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );\n\n\t\t\tgl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );\n\n\t\t\tstate.disable( gl.CULL_FACE );\n\t\t\tstate.setDepthWrite( false );\n\n\t\t\tfor ( var i = 0, l = flares.length; i < l; i ++ ) {\n\n\t\t\t\tsize = 16 / viewport.w;\n\t\t\t\tscale.set( size * invAspect, size );\n\n\t\t\t\t// calc object screen position\n\n\t\t\t\tvar flare = flares[ i ];\n\n\t\t\t\ttempPosition.set( flare.matrixWorld.elements[ 12 ], flare.matrixWorld.elements[ 13 ], flare.matrixWorld.elements[ 14 ] );\n\n\t\t\t\ttempPosition.applyMatrix4( camera.matrixWorldInverse );\n\t\t\t\ttempPosition.applyProjection( camera.projectionMatrix );\n\n\t\t\t\t// setup arrays for gl programs\n\n\t\t\t\tscreenPosition.copy( tempPosition );\n\n\t\t\t\t// horizontal and vertical coordinate of the lower left corner of the pixels to copy\n\n\t\t\t\tscreenPositionPixels.x = viewport.x + ( screenPosition.x * halfViewportWidth ) + halfViewportWidth - 8;\n\t\t\t\tscreenPositionPixels.y = viewport.y + ( screenPosition.y * halfViewportHeight ) + halfViewportHeight - 8;\n\n\t\t\t\t// screen cull\n\n\t\t\t\tif ( validArea.containsPoint( screenPositionPixels ) === true ) {\n\n\t\t\t\t\t// save current RGB to temp texture\n\n\t\t\t\t\tstate.activeTexture( gl.TEXTURE0 );\n\t\t\t\t\tstate.bindTexture( gl.TEXTURE_2D, null );\n\t\t\t\t\tstate.activeTexture( gl.TEXTURE1 );\n\t\t\t\t\tstate.bindTexture( gl.TEXTURE_2D, tempTexture );\n\t\t\t\t\tgl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGB, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );\n\n\n\t\t\t\t\t// render pink quad\n\n\t\t\t\t\tgl.uniform1i( uniforms.renderType, 0 );\n\t\t\t\t\tgl.uniform2f( uniforms.scale, scale.x, scale.y );\n\t\t\t\t\tgl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );\n\n\t\t\t\t\tstate.disable( gl.BLEND );\n\t\t\t\t\tstate.enable( gl.DEPTH_TEST );\n\n\t\t\t\t\tgl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );\n\n\n\t\t\t\t\t// copy result to occlusionMap\n\n\t\t\t\t\tstate.activeTexture( gl.TEXTURE0 );\n\t\t\t\t\tstate.bindTexture( gl.TEXTURE_2D, occlusionTexture );\n\t\t\t\t\tgl.copyTexImage2D( gl.TEXTURE_2D, 0, gl.RGBA, screenPositionPixels.x, screenPositionPixels.y, 16, 16, 0 );\n\n\n\t\t\t\t\t// restore graphics\n\n\t\t\t\t\tgl.uniform1i( uniforms.renderType, 1 );\n\t\t\t\t\tstate.disable( gl.DEPTH_TEST );\n\n\t\t\t\t\tstate.activeTexture( gl.TEXTURE1 );\n\t\t\t\t\tstate.bindTexture( gl.TEXTURE_2D, tempTexture );\n\t\t\t\t\tgl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );\n\n\n\t\t\t\t\t// update object positions\n\n\t\t\t\t\tflare.positionScreen.copy( screenPosition );\n\n\t\t\t\t\tif ( flare.customUpdateCallback ) {\n\n\t\t\t\t\t\tflare.customUpdateCallback( flare );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tflare.updateLensFlares();\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// render flares\n\n\t\t\t\t\tgl.uniform1i( uniforms.renderType, 2 );\n\t\t\t\t\tstate.enable( gl.BLEND );\n\n\t\t\t\t\tfor ( var j = 0, jl = flare.lensFlares.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar sprite = flare.lensFlares[ j ];\n\n\t\t\t\t\t\tif ( sprite.opacity > 0.001 && sprite.scale > 0.001 ) {\n\n\t\t\t\t\t\t\tscreenPosition.x = sprite.x;\n\t\t\t\t\t\t\tscreenPosition.y = sprite.y;\n\t\t\t\t\t\t\tscreenPosition.z = sprite.z;\n\n\t\t\t\t\t\t\tsize = sprite.size * sprite.scale / viewport.w;\n\n\t\t\t\t\t\t\tscale.x = size * invAspect;\n\t\t\t\t\t\t\tscale.y = size;\n\n\t\t\t\t\t\t\tgl.uniform3f( uniforms.screenPosition, screenPosition.x, screenPosition.y, screenPosition.z );\n\t\t\t\t\t\t\tgl.uniform2f( uniforms.scale, scale.x, scale.y );\n\t\t\t\t\t\t\tgl.uniform1f( uniforms.rotation, sprite.rotation );\n\n\t\t\t\t\t\t\tgl.uniform1f( uniforms.opacity, sprite.opacity );\n\t\t\t\t\t\t\tgl.uniform3f( uniforms.color, sprite.color.r, sprite.color.g, sprite.color.b );\n\n\t\t\t\t\t\t\tstate.setBlending( sprite.blending, sprite.blendEquation, sprite.blendSrc, sprite.blendDst );\n\t\t\t\t\t\t\trenderer.setTexture2D( sprite.texture, 1 );\n\n\t\t\t\t\t\t\tgl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// restore gl\n\n\t\t\tstate.enable( gl.CULL_FACE );\n\t\t\tstate.enable( gl.DEPTH_TEST );\n\t\t\tstate.setDepthWrite( true );\n\n\t\t\trenderer.resetGLState();\n\n\t\t};\n\n\t\tfunction createProgram( shader ) {\n\n\t\t\tvar program = gl.createProgram();\n\n\t\t\tvar fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );\n\t\t\tvar vertexShader = gl.createShader( gl.VERTEX_SHADER );\n\n\t\t\tvar prefix = \"precision \" + renderer.getPrecision() + \" float;\\n\";\n\n\t\t\tgl.shaderSource( fragmentShader, prefix + shader.fragmentShader );\n\t\t\tgl.shaderSource( vertexShader, prefix + shader.vertexShader );\n\n\t\t\tgl.compileShader( fragmentShader );\n\t\t\tgl.compileShader( vertexShader );\n\n\t\t\tgl.attachShader( program, fragmentShader );\n\t\t\tgl.attachShader( program, vertexShader );\n\n\t\t\tgl.linkProgram( program );\n\n\t\t\treturn program;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction SpritePlugin( renderer, sprites ) {\n\n\t\tvar gl = renderer.context;\n\t\tvar state = renderer.state;\n\n\t\tvar vertexBuffer, elementBuffer;\n\t\tvar program, attributes, uniforms;\n\n\t\tvar texture;\n\n\t\t// decompose matrixWorld\n\n\t\tvar spritePosition = new Vector3();\n\t\tvar spriteRotation = new Quaternion();\n\t\tvar spriteScale = new Vector3();\n\n\t\tfunction init() {\n\n\t\t\tvar vertices = new Float32Array( [\n\t\t\t\t- 0.5, - 0.5, 0, 0,\n\t\t\t\t 0.5, - 0.5, 1, 0,\n\t\t\t\t 0.5, 0.5, 1, 1,\n\t\t\t\t- 0.5, 0.5, 0, 1\n\t\t\t] );\n\n\t\t\tvar faces = new Uint16Array( [\n\t\t\t\t0, 1, 2,\n\t\t\t\t0, 2, 3\n\t\t\t] );\n\n\t\t\tvertexBuffer = gl.createBuffer();\n\t\t\telementBuffer = gl.createBuffer();\n\n\t\t\tgl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );\n\t\t\tgl.bufferData( gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW );\n\n\t\t\tgl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );\n\t\t\tgl.bufferData( gl.ELEMENT_ARRAY_BUFFER, faces, gl.STATIC_DRAW );\n\n\t\t\tprogram = createProgram();\n\n\t\t\tattributes = {\n\t\t\t\tposition:\t\t\tgl.getAttribLocation ( program, 'position' ),\n\t\t\t\tuv:\t\t\t\t\tgl.getAttribLocation ( program, 'uv' )\n\t\t\t};\n\n\t\t\tuniforms = {\n\t\t\t\tuvOffset:\t\t\tgl.getUniformLocation( program, 'uvOffset' ),\n\t\t\t\tuvScale:\t\t\tgl.getUniformLocation( program, 'uvScale' ),\n\n\t\t\t\trotation:\t\t\tgl.getUniformLocation( program, 'rotation' ),\n\t\t\t\tscale:\t\t\t\tgl.getUniformLocation( program, 'scale' ),\n\n\t\t\t\tcolor:\t\t\t\tgl.getUniformLocation( program, 'color' ),\n\t\t\t\tmap:\t\t\t\tgl.getUniformLocation( program, 'map' ),\n\t\t\t\topacity:\t\t\tgl.getUniformLocation( program, 'opacity' ),\n\n\t\t\t\tmodelViewMatrix: \tgl.getUniformLocation( program, 'modelViewMatrix' ),\n\t\t\t\tprojectionMatrix:\tgl.getUniformLocation( program, 'projectionMatrix' ),\n\n\t\t\t\tfogType:\t\t\tgl.getUniformLocation( program, 'fogType' ),\n\t\t\t\tfogDensity:\t\t\tgl.getUniformLocation( program, 'fogDensity' ),\n\t\t\t\tfogNear:\t\t\tgl.getUniformLocation( program, 'fogNear' ),\n\t\t\t\tfogFar:\t\t\t\tgl.getUniformLocation( program, 'fogFar' ),\n\t\t\t\tfogColor:\t\t\tgl.getUniformLocation( program, 'fogColor' ),\n\n\t\t\t\talphaTest:\t\t\tgl.getUniformLocation( program, 'alphaTest' )\n\t\t\t};\n\n\t\t\tvar canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\tcanvas.width = 8;\n\t\t\tcanvas.height = 8;\n\n\t\t\tvar context = canvas.getContext( '2d' );\n\t\t\tcontext.fillStyle = 'white';\n\t\t\tcontext.fillRect( 0, 0, 8, 8 );\n\n\t\t\ttexture = new Texture( canvas );\n\t\t\ttexture.needsUpdate = true;\n\n\t\t}\n\n\t\tthis.render = function ( scene, camera ) {\n\n\t\t\tif ( sprites.length === 0 ) return;\n\n\t\t\t// setup gl\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\tinit();\n\n\t\t\t}\n\n\t\t\tgl.useProgram( program );\n\n\t\t\tstate.initAttributes();\n\t\t\tstate.enableAttribute( attributes.position );\n\t\t\tstate.enableAttribute( attributes.uv );\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t\tstate.disable( gl.CULL_FACE );\n\t\t\tstate.enable( gl.BLEND );\n\n\t\t\tgl.bindBuffer( gl.ARRAY_BUFFER, vertexBuffer );\n\t\t\tgl.vertexAttribPointer( attributes.position, 2, gl.FLOAT, false, 2 * 8, 0 );\n\t\t\tgl.vertexAttribPointer( attributes.uv, 2, gl.FLOAT, false, 2 * 8, 8 );\n\n\t\t\tgl.bindBuffer( gl.ELEMENT_ARRAY_BUFFER, elementBuffer );\n\n\t\t\tgl.uniformMatrix4fv( uniforms.projectionMatrix, false, camera.projectionMatrix.elements );\n\n\t\t\tstate.activeTexture( gl.TEXTURE0 );\n\t\t\tgl.uniform1i( uniforms.map, 0 );\n\n\t\t\tvar oldFogType = 0;\n\t\t\tvar sceneFogType = 0;\n\t\t\tvar fog = scene.fog;\n\n\t\t\tif ( fog ) {\n\n\t\t\t\tgl.uniform3f( uniforms.fogColor, fog.color.r, fog.color.g, fog.color.b );\n\n\t\t\t\tif ( (fog && fog.isFog) ) {\n\n\t\t\t\t\tgl.uniform1f( uniforms.fogNear, fog.near );\n\t\t\t\t\tgl.uniform1f( uniforms.fogFar, fog.far );\n\n\t\t\t\t\tgl.uniform1i( uniforms.fogType, 1 );\n\t\t\t\t\toldFogType = 1;\n\t\t\t\t\tsceneFogType = 1;\n\n\t\t\t\t} else if ( (fog && fog.isFogExp2) ) {\n\n\t\t\t\t\tgl.uniform1f( uniforms.fogDensity, fog.density );\n\n\t\t\t\t\tgl.uniform1i( uniforms.fogType, 2 );\n\t\t\t\t\toldFogType = 2;\n\t\t\t\t\tsceneFogType = 2;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tgl.uniform1i( uniforms.fogType, 0 );\n\t\t\t\toldFogType = 0;\n\t\t\t\tsceneFogType = 0;\n\n\t\t\t}\n\n\n\t\t\t// update positions and sort\n\n\t\t\tfor ( var i = 0, l = sprites.length; i < l; i ++ ) {\n\n\t\t\t\tvar sprite = sprites[ i ];\n\n\t\t\t\tsprite.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, sprite.matrixWorld );\n\t\t\t\tsprite.z = - sprite.modelViewMatrix.elements[ 14 ];\n\n\t\t\t}\n\n\t\t\tsprites.sort( painterSortStable );\n\n\t\t\t// render all sprites\n\n\t\t\tvar scale = [];\n\n\t\t\tfor ( var i = 0, l = sprites.length; i < l; i ++ ) {\n\n\t\t\t\tvar sprite = sprites[ i ];\n\t\t\t\tvar material = sprite.material;\n\n\t\t\t\tif ( material.visible === false ) continue;\n\n\t\t\t\tgl.uniform1f( uniforms.alphaTest, material.alphaTest );\n\t\t\t\tgl.uniformMatrix4fv( uniforms.modelViewMatrix, false, sprite.modelViewMatrix.elements );\n\n\t\t\t\tsprite.matrixWorld.decompose( spritePosition, spriteRotation, spriteScale );\n\n\t\t\t\tscale[ 0 ] = spriteScale.x;\n\t\t\t\tscale[ 1 ] = spriteScale.y;\n\n\t\t\t\tvar fogType = 0;\n\n\t\t\t\tif ( scene.fog && material.fog ) {\n\n\t\t\t\t\tfogType = sceneFogType;\n\n\t\t\t\t}\n\n\t\t\t\tif ( oldFogType !== fogType ) {\n\n\t\t\t\t\tgl.uniform1i( uniforms.fogType, fogType );\n\t\t\t\t\toldFogType = fogType;\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.map !== null ) {\n\n\t\t\t\t\tgl.uniform2f( uniforms.uvOffset, material.map.offset.x, material.map.offset.y );\n\t\t\t\t\tgl.uniform2f( uniforms.uvScale, material.map.repeat.x, material.map.repeat.y );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tgl.uniform2f( uniforms.uvOffset, 0, 0 );\n\t\t\t\t\tgl.uniform2f( uniforms.uvScale, 1, 1 );\n\n\t\t\t\t}\n\n\t\t\t\tgl.uniform1f( uniforms.opacity, material.opacity );\n\t\t\t\tgl.uniform3f( uniforms.color, material.color.r, material.color.g, material.color.b );\n\n\t\t\t\tgl.uniform1f( uniforms.rotation, material.rotation );\n\t\t\t\tgl.uniform2fv( uniforms.scale, scale );\n\n\t\t\t\tstate.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst );\n\t\t\t\tstate.setDepthTest( material.depthTest );\n\t\t\t\tstate.setDepthWrite( material.depthWrite );\n\n\t\t\t\tif ( material.map ) {\n\n\t\t\t\t\trenderer.setTexture2D( material.map, 0 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderer.setTexture2D( texture, 0 );\n\n\t\t\t\t}\n\n\t\t\t\tgl.drawElements( gl.TRIANGLES, 6, gl.UNSIGNED_SHORT, 0 );\n\n\t\t\t}\n\n\t\t\t// restore gl\n\n\t\t\tstate.enable( gl.CULL_FACE );\n\n\t\t\trenderer.resetGLState();\n\n\t\t};\n\n\t\tfunction createProgram() {\n\n\t\t\tvar program = gl.createProgram();\n\n\t\t\tvar vertexShader = gl.createShader( gl.VERTEX_SHADER );\n\t\t\tvar fragmentShader = gl.createShader( gl.FRAGMENT_SHADER );\n\n\t\t\tgl.shaderSource( vertexShader, [\n\n\t\t\t\t'precision ' + renderer.getPrecision() + ' float;',\n\n\t\t\t\t'uniform mat4 modelViewMatrix;',\n\t\t\t\t'uniform mat4 projectionMatrix;',\n\t\t\t\t'uniform float rotation;',\n\t\t\t\t'uniform vec2 scale;',\n\t\t\t\t'uniform vec2 uvOffset;',\n\t\t\t\t'uniform vec2 uvScale;',\n\n\t\t\t\t'attribute vec2 position;',\n\t\t\t\t'attribute vec2 uv;',\n\n\t\t\t\t'varying vec2 vUV;',\n\n\t\t\t\t'void main() {',\n\n\t\t\t\t\t'vUV = uvOffset + uv * uvScale;',\n\n\t\t\t\t\t'vec2 alignedPosition = position * scale;',\n\n\t\t\t\t\t'vec2 rotatedPosition;',\n\t\t\t\t\t'rotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;',\n\t\t\t\t\t'rotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;',\n\n\t\t\t\t\t'vec4 finalPosition;',\n\n\t\t\t\t\t'finalPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );',\n\t\t\t\t\t'finalPosition.xy += rotatedPosition;',\n\t\t\t\t\t'finalPosition = projectionMatrix * finalPosition;',\n\n\t\t\t\t\t'gl_Position = finalPosition;',\n\n\t\t\t\t'}'\n\n\t\t\t].join( '\\n' ) );\n\n\t\t\tgl.shaderSource( fragmentShader, [\n\n\t\t\t\t'precision ' + renderer.getPrecision() + ' float;',\n\n\t\t\t\t'uniform vec3 color;',\n\t\t\t\t'uniform sampler2D map;',\n\t\t\t\t'uniform float opacity;',\n\n\t\t\t\t'uniform int fogType;',\n\t\t\t\t'uniform vec3 fogColor;',\n\t\t\t\t'uniform float fogDensity;',\n\t\t\t\t'uniform float fogNear;',\n\t\t\t\t'uniform float fogFar;',\n\t\t\t\t'uniform float alphaTest;',\n\n\t\t\t\t'varying vec2 vUV;',\n\n\t\t\t\t'void main() {',\n\n\t\t\t\t\t'vec4 texture = texture2D( map, vUV );',\n\n\t\t\t\t\t'if ( texture.a < alphaTest ) discard;',\n\n\t\t\t\t\t'gl_FragColor = vec4( color * texture.xyz, texture.a * opacity );',\n\n\t\t\t\t\t'if ( fogType > 0 ) {',\n\n\t\t\t\t\t\t'float depth = gl_FragCoord.z / gl_FragCoord.w;',\n\t\t\t\t\t\t'float fogFactor = 0.0;',\n\n\t\t\t\t\t\t'if ( fogType == 1 ) {',\n\n\t\t\t\t\t\t\t'fogFactor = smoothstep( fogNear, fogFar, depth );',\n\n\t\t\t\t\t\t'} else {',\n\n\t\t\t\t\t\t\t'const float LOG2 = 1.442695;',\n\t\t\t\t\t\t\t'fogFactor = exp2( - fogDensity * fogDensity * depth * depth * LOG2 );',\n\t\t\t\t\t\t\t'fogFactor = 1.0 - clamp( fogFactor, 0.0, 1.0 );',\n\n\t\t\t\t\t\t'}',\n\n\t\t\t\t\t\t'gl_FragColor = mix( gl_FragColor, vec4( fogColor, gl_FragColor.w ), fogFactor );',\n\n\t\t\t\t\t'}',\n\n\t\t\t\t'}'\n\n\t\t\t].join( '\\n' ) );\n\n\t\t\tgl.compileShader( vertexShader );\n\t\t\tgl.compileShader( fragmentShader );\n\n\t\t\tgl.attachShader( program, vertexShader );\n\t\t\tgl.attachShader( program, fragmentShader );\n\n\t\t\tgl.linkProgram( program );\n\n\t\t\treturn program;\n\n\t\t}\n\n\t\tfunction painterSortStable( a, b ) {\n\n\t\t\tif ( a.renderOrder !== b.renderOrder ) {\n\n\t\t\t\treturn a.renderOrder - b.renderOrder;\n\n\t\t\t} else if ( a.z !== b.z ) {\n\n\t\t\t\treturn b.z - a.z;\n\n\t\t\t} else {\n\n\t\t\t\treturn b.id - a.id;\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Material() {\n\n\t\tObject.defineProperty( this, 'id', { value: MaterialIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Material';\n\n\t\tthis.fog = true;\n\t\tthis.lights = true;\n\n\t\tthis.blending = NormalBlending;\n\t\tthis.side = FrontSide;\n\t\tthis.shading = SmoothShading; // THREE.FlatShading, THREE.SmoothShading\n\t\tthis.vertexColors = NoColors; // THREE.NoColors, THREE.VertexColors, THREE.FaceColors\n\n\t\tthis.opacity = 1;\n\t\tthis.transparent = false;\n\n\t\tthis.blendSrc = SrcAlphaFactor;\n\t\tthis.blendDst = OneMinusSrcAlphaFactor;\n\t\tthis.blendEquation = AddEquation;\n\t\tthis.blendSrcAlpha = null;\n\t\tthis.blendDstAlpha = null;\n\t\tthis.blendEquationAlpha = null;\n\n\t\tthis.depthFunc = LessEqualDepth;\n\t\tthis.depthTest = true;\n\t\tthis.depthWrite = true;\n\n\t\tthis.clippingPlanes = null;\n\t\tthis.clipIntersection = false;\n\t\tthis.clipShadows = false;\n\n\t\tthis.colorWrite = true;\n\n\t\tthis.precision = null; // override the renderer's default precision for this material\n\n\t\tthis.polygonOffset = false;\n\t\tthis.polygonOffsetFactor = 0;\n\t\tthis.polygonOffsetUnits = 0;\n\n\t\tthis.alphaTest = 0;\n\t\tthis.premultipliedAlpha = false;\n\n\t\tthis.overdraw = 0; // Overdrawn pixels (typically between 0 and 1) for fixing antialiasing gaps in CanvasRenderer\n\n\t\tthis.visible = true;\n\n\t\tthis._needsUpdate = true;\n\n\t}\n\n\tMaterial.prototype = {\n\n\t\tconstructor: Material,\n\n\t\tisMaterial: true,\n\n\t\tget needsUpdate() {\n\n\t\t\treturn this._needsUpdate;\n\n\t\t},\n\n\t\tset needsUpdate( value ) {\n\n\t\t\tif ( value === true ) this.update();\n\t\t\tthis._needsUpdate = value;\n\n\t\t},\n\n\t\tsetValues: function ( values ) {\n\n\t\t\tif ( values === undefined ) return;\n\n\t\t\tfor ( var key in values ) {\n\n\t\t\t\tvar newValue = values[ key ];\n\n\t\t\t\tif ( newValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.Material: '\" + key + \"' parameter is undefined.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar currentValue = this[ key ];\n\n\t\t\t\tif ( currentValue === undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.\" + this.type + \": '\" + key + \"' is not a property of this material.\" );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tif ( (currentValue && currentValue.isColor) ) {\n\n\t\t\t\t\tcurrentValue.set( newValue );\n\n\t\t\t\t} else if ( (currentValue && currentValue.isVector3) && (newValue && newValue.isVector3) ) {\n\n\t\t\t\t\tcurrentValue.copy( newValue );\n\n\t\t\t\t} else if ( key === 'overdraw' ) {\n\n\t\t\t\t\t// ensure overdraw is backwards-compatible with legacy boolean type\n\t\t\t\t\tthis[ key ] = Number( newValue );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis[ key ] = newValue;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar isRoot = meta === undefined;\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tmeta = {\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {}\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.4,\n\t\t\t\t\ttype: 'Material',\n\t\t\t\t\tgenerator: 'Material.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Material serialization\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( (this.color && this.color.isColor) ) data.color = this.color.getHex();\n\n\t\t\tif ( this.roughness !== undefined ) data.roughness = this.roughness;\n\t\t\tif ( this.metalness !== undefined ) data.metalness = this.metalness;\n\n\t\t\tif ( (this.emissive && this.emissive.isColor) ) data.emissive = this.emissive.getHex();\n\t\t\tif ( (this.specular && this.specular.isColor) ) data.specular = this.specular.getHex();\n\t\t\tif ( this.shininess !== undefined ) data.shininess = this.shininess;\n\n\t\t\tif ( (this.map && this.map.isTexture) ) data.map = this.map.toJSON( meta ).uuid;\n\t\t\tif ( (this.alphaMap && this.alphaMap.isTexture) ) data.alphaMap = this.alphaMap.toJSON( meta ).uuid;\n\t\t\tif ( (this.lightMap && this.lightMap.isTexture) ) data.lightMap = this.lightMap.toJSON( meta ).uuid;\n\t\t\tif ( (this.bumpMap && this.bumpMap.isTexture) ) {\n\n\t\t\t\tdata.bumpMap = this.bumpMap.toJSON( meta ).uuid;\n\t\t\t\tdata.bumpScale = this.bumpScale;\n\n\t\t\t}\n\t\t\tif ( (this.normalMap && this.normalMap.isTexture) ) {\n\n\t\t\t\tdata.normalMap = this.normalMap.toJSON( meta ).uuid;\n\t\t\t\tdata.normalScale = this.normalScale.toArray();\n\n\t\t\t}\n\t\t\tif ( (this.displacementMap && this.displacementMap.isTexture) ) {\n\n\t\t\t\tdata.displacementMap = this.displacementMap.toJSON( meta ).uuid;\n\t\t\t\tdata.displacementScale = this.displacementScale;\n\t\t\t\tdata.displacementBias = this.displacementBias;\n\n\t\t\t}\n\t\t\tif ( (this.roughnessMap && this.roughnessMap.isTexture) ) data.roughnessMap = this.roughnessMap.toJSON( meta ).uuid;\n\t\t\tif ( (this.metalnessMap && this.metalnessMap.isTexture) ) data.metalnessMap = this.metalnessMap.toJSON( meta ).uuid;\n\n\t\t\tif ( (this.emissiveMap && this.emissiveMap.isTexture) ) data.emissiveMap = this.emissiveMap.toJSON( meta ).uuid;\n\t\t\tif ( (this.specularMap && this.specularMap.isTexture) ) data.specularMap = this.specularMap.toJSON( meta ).uuid;\n\n\t\t\tif ( (this.envMap && this.envMap.isTexture) ) {\n\n\t\t\t\tdata.envMap = this.envMap.toJSON( meta ).uuid;\n\t\t\t\tdata.reflectivity = this.reflectivity; // Scale behind envMap\n\n\t\t\t}\n\n\t\t\tif ( this.size !== undefined ) data.size = this.size;\n\t\t\tif ( this.sizeAttenuation !== undefined ) data.sizeAttenuation = this.sizeAttenuation;\n\n\t\t\tif ( this.blending !== NormalBlending ) data.blending = this.blending;\n\t\t\tif ( this.shading !== SmoothShading ) data.shading = this.shading;\n\t\t\tif ( this.side !== FrontSide ) data.side = this.side;\n\t\t\tif ( this.vertexColors !== NoColors ) data.vertexColors = this.vertexColors;\n\n\t\t\tif ( this.opacity < 1 ) data.opacity = this.opacity;\n\t\t\tif ( this.transparent === true ) data.transparent = this.transparent;\n\n\t\t\tdata.depthFunc = this.depthFunc;\n\t\t\tdata.depthTest = this.depthTest;\n\t\t\tdata.depthWrite = this.depthWrite;\n\n\t\t\tif ( this.alphaTest > 0 ) data.alphaTest = this.alphaTest;\n\t\t\tif ( this.premultipliedAlpha === true ) data.premultipliedAlpha = this.premultipliedAlpha;\n\t\t\tif ( this.wireframe === true ) data.wireframe = this.wireframe;\n\t\t\tif ( this.wireframeLinewidth > 1 ) data.wireframeLinewidth = this.wireframeLinewidth;\n\t\t\tif ( this.wireframeLinecap !== 'round' ) data.wireframeLinecap = this.wireframeLinecap;\n\t\t\tif ( this.wireframeLinejoin !== 'round' ) data.wireframeLinejoin = this.wireframeLinejoin;\n\n\t\t\tdata.skinning = this.skinning;\n\t\t\tdata.morphTargets = this.morphTargets;\n\n\t\t\t// TODO: Copied from Object3D.toJSON\n\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t\tif ( isRoot ) {\n\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\n\t\t\t\tif ( textures.length > 0 ) data.textures = textures;\n\t\t\t\tif ( images.length > 0 ) data.images = images;\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.fog = source.fog;\n\t\t\tthis.lights = source.lights;\n\n\t\t\tthis.blending = source.blending;\n\t\t\tthis.side = source.side;\n\t\t\tthis.shading = source.shading;\n\t\t\tthis.vertexColors = source.vertexColors;\n\n\t\t\tthis.opacity = source.opacity;\n\t\t\tthis.transparent = source.transparent;\n\n\t\t\tthis.blendSrc = source.blendSrc;\n\t\t\tthis.blendDst = source.blendDst;\n\t\t\tthis.blendEquation = source.blendEquation;\n\t\t\tthis.blendSrcAlpha = source.blendSrcAlpha;\n\t\t\tthis.blendDstAlpha = source.blendDstAlpha;\n\t\t\tthis.blendEquationAlpha = source.blendEquationAlpha;\n\n\t\t\tthis.depthFunc = source.depthFunc;\n\t\t\tthis.depthTest = source.depthTest;\n\t\t\tthis.depthWrite = source.depthWrite;\n\n\t\t\tthis.colorWrite = source.colorWrite;\n\n\t\t\tthis.precision = source.precision;\n\n\t\t\tthis.polygonOffset = source.polygonOffset;\n\t\t\tthis.polygonOffsetFactor = source.polygonOffsetFactor;\n\t\t\tthis.polygonOffsetUnits = source.polygonOffsetUnits;\n\n\t\t\tthis.alphaTest = source.alphaTest;\n\n\t\t\tthis.premultipliedAlpha = source.premultipliedAlpha;\n\n\t\t\tthis.overdraw = source.overdraw;\n\n\t\t\tthis.visible = source.visible;\n\t\t\tthis.clipShadows = source.clipShadows;\n\t\t\tthis.clipIntersection = source.clipIntersection;\n\n\t\t\tvar srcPlanes = source.clippingPlanes,\n\t\t\t\tdstPlanes = null;\n\n\t\t\tif ( srcPlanes !== null ) {\n\n\t\t\t\tvar n = srcPlanes.length;\n\t\t\t\tdstPlanes = new Array( n );\n\n\t\t\t\tfor ( var i = 0; i !== n; ++ i )\n\t\t\t\t\tdstPlanes[ i ] = srcPlanes[ i ].clone();\n\n\t\t\t}\n\n\t\t\tthis.clippingPlanes = dstPlanes;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdate: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'update' } );\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t};\n\n\tObject.assign( Material.prototype, EventDispatcher.prototype );\n\n\tvar count$1 = 0;\n\tfunction MaterialIdCount() { return count$1++; }\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * defines: { \"label\" : \"value\" },\n\t * uniforms: { \"parameter1\": { value: 1.0 }, \"parameter2\": { value2: 2 } },\n\t *\n\t * fragmentShader: ,\n\t * vertexShader: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * lights: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction ShaderMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'ShaderMaterial';\n\n\t\tthis.defines = {};\n\t\tthis.uniforms = {};\n\n\t\tthis.vertexShader = 'void main() {\\n\\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\\n}';\n\t\tthis.fragmentShader = 'void main() {\\n\\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\\n}';\n\n\t\tthis.linewidth = 1;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false; // set to use scene fog\n\t\tthis.lights = false; // set to use scene lights\n\t\tthis.clipping = false; // set to use user-defined clipping planes\n\n\t\tthis.skinning = false; // set to use skinning attribute streams\n\t\tthis.morphTargets = false; // set to use morph targets\n\t\tthis.morphNormals = false; // set to use morph normals\n\n\t\tthis.extensions = {\n\t\t\tderivatives: false, // set to use derivatives\n\t\t\tfragDepth: false, // set to use fragment depth values\n\t\t\tdrawBuffers: false, // set to use draw buffers\n\t\t\tshaderTextureLOD: false // set to use shader texture LOD\n\t\t};\n\n\t\t// When rendered geometry doesn't include these attributes but the material does,\n\t\t// use these default values in WebGL. This avoids errors when buffer data is missing.\n\t\tthis.defaultAttributeValues = {\n\t\t\t'color': [ 1, 1, 1 ],\n\t\t\t'uv': [ 0, 0 ],\n\t\t\t'uv2': [ 0, 0 ]\n\t\t};\n\n\t\tthis.index0AttributeName = undefined;\n\n\t\tif ( parameters !== undefined ) {\n\n\t\t\tif ( parameters.attributes !== undefined ) {\n\n\t\t\t\tconsole.error( 'THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.' );\n\n\t\t\t}\n\n\t\t\tthis.setValues( parameters );\n\n\t\t}\n\n\t}\n\n\tShaderMaterial.prototype = Object.create( Material.prototype );\n\tShaderMaterial.prototype.constructor = ShaderMaterial;\n\n\tShaderMaterial.prototype.isShaderMaterial = true;\n\n\tShaderMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.fragmentShader = source.fragmentShader;\n\t\tthis.vertexShader = source.vertexShader;\n\n\t\tthis.uniforms = UniformsUtils.clone( source.uniforms );\n\n\t\tthis.defines = source.defines;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\tthis.lights = source.lights;\n\t\tthis.clipping = source.clipping;\n\n\t\tthis.skinning = source.skinning;\n\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\tthis.extensions = source.extensions;\n\n\t\treturn this;\n\n\t};\n\n\tShaderMaterial.prototype.toJSON = function ( meta ) {\n\n\t\tvar data = Material.prototype.toJSON.call( this, meta );\n\n\t\tdata.uniforms = this.uniforms;\n\t\tdata.vertexShader = this.vertexShader;\n\t\tdata.fragmentShader = this.fragmentShader;\n\n\t\treturn data;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / https://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t *\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t * }\n\t */\n\n\tfunction MeshDepthMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshDepthMaterial';\n\n\t\tthis.depthPacking = BasicDepthPacking;\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.map = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshDepthMaterial.prototype = Object.create( Material.prototype );\n\tMeshDepthMaterial.prototype.constructor = MeshDepthMaterial;\n\n\tMeshDepthMaterial.prototype.isMeshDepthMaterial = true;\n\n\tMeshDepthMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.depthPacking = source.depthPacking;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\tthis.map = source.map;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction Box3( min, max ) {\n\n\t\tthis.min = ( min !== undefined ) ? min : new Vector3( + Infinity, + Infinity, + Infinity );\n\t\tthis.max = ( max !== undefined ) ? max : new Vector3( - Infinity, - Infinity, - Infinity );\n\n\t}\n\n\tBox3.prototype = {\n\n\t\tconstructor: Box3,\n\n\t\tisBox3: true,\n\n\t\tset: function ( min, max ) {\n\n\t\t\tthis.min.copy( min );\n\t\t\tthis.max.copy( max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromArray: function ( array ) {\n\n\t\t\tvar minX = + Infinity;\n\t\t\tvar minY = + Infinity;\n\t\t\tvar minZ = + Infinity;\n\n\t\t\tvar maxX = - Infinity;\n\t\t\tvar maxY = - Infinity;\n\t\t\tvar maxZ = - Infinity;\n\n\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\tvar x = array[ i ];\n\t\t\t\tvar y = array[ i + 1 ];\n\t\t\t\tvar z = array[ i + 2 ];\n\n\t\t\t\tif ( x < minX ) minX = x;\n\t\t\t\tif ( y < minY ) minY = y;\n\t\t\t\tif ( z < minZ ) minZ = z;\n\n\t\t\t\tif ( x > maxX ) maxX = x;\n\t\t\t\tif ( y > maxY ) maxY = y;\n\t\t\t\tif ( z > maxZ ) maxZ = z;\n\n\t\t\t}\n\n\t\t\tthis.min.set( minX, minY, minZ );\n\t\t\tthis.max.set( maxX, maxY, maxZ );\n\n\t\t},\n\n\t\tsetFromPoints: function ( points ) {\n\n\t\t\tthis.makeEmpty();\n\n\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\tthis.expandByPoint( points[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCenterAndSize: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function setFromCenterAndSize( center, size ) {\n\n\t\t\t\tvar halfSize = v1.copy( size ).multiplyScalar( 0.5 );\n\n\t\t\t\tthis.min.copy( center ).sub( halfSize );\n\t\t\t\tthis.max.copy( center ).add( halfSize );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromObject: function () {\n\n\t\t\t// Computes the world-axis-aligned bounding box of an object (including its children),\n\t\t\t// accounting for both the object's, and children's, world transforms\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function setFromObject( object ) {\n\n\t\t\t\tvar scope = this;\n\n\t\t\t\tobject.updateMatrixWorld( true );\n\n\t\t\t\tthis.makeEmpty();\n\n\t\t\t\tobject.traverse( function ( node ) {\n\n\t\t\t\t\tvar geometry = node.geometry;\n\n\t\t\t\t\tif ( geometry !== undefined ) {\n\n\t\t\t\t\t\tif ( (geometry && geometry.isGeometry) ) {\n\n\t\t\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\t\t\tfor ( var i = 0, il = vertices.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\t\tv1.copy( vertices[ i ] );\n\t\t\t\t\t\t\t\tv1.applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else if ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\t\t\t\t\tvar attribute = geometry.attributes.position;\n\n\t\t\t\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\t\t\t\tvar array, offset, stride;\n\n\t\t\t\t\t\t\t\tif ( (attribute && attribute.isInterleavedBufferAttribute) ) {\n\n\t\t\t\t\t\t\t\t\tarray = attribute.data.array;\n\t\t\t\t\t\t\t\t\toffset = attribute.offset;\n\t\t\t\t\t\t\t\t\tstride = attribute.data.stride;\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tarray = attribute.array;\n\t\t\t\t\t\t\t\t\toffset = 0;\n\t\t\t\t\t\t\t\t\tstride = 3;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tfor ( var i = offset, il = array.length; i < il; i += stride ) {\n\n\t\t\t\t\t\t\t\t\tv1.fromArray( array, i );\n\t\t\t\t\t\t\t\t\tv1.applyMatrix4( node.matrixWorld );\n\n\t\t\t\t\t\t\t\t\tscope.expandByPoint( v1 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( box ) {\n\n\t\t\tthis.min.copy( box.min );\n\t\t\tthis.max.copy( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tmakeEmpty: function () {\n\n\t\t\tthis.min.x = this.min.y = this.min.z = + Infinity;\n\t\t\tthis.max.x = this.max.y = this.max.z = - Infinity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tisEmpty: function () {\n\n\t\t\t// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes\n\n\t\t\treturn ( this.max.x < this.min.x ) || ( this.max.y < this.min.y ) || ( this.max.z < this.min.z );\n\n\t\t},\n\n\t\tgetCenter: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn this.isEmpty() ? result.set( 0, 0, 0 ) : result.addVectors( this.min, this.max ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tgetSize: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn this.isEmpty() ? result.set( 0, 0, 0 ) : result.subVectors( this.max, this.min );\n\n\t\t},\n\n\t\texpandByPoint: function ( point ) {\n\n\t\t\tthis.min.min( point );\n\t\t\tthis.max.max( point );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByVector: function ( vector ) {\n\n\t\t\tthis.min.sub( vector );\n\t\t\tthis.max.add( vector );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\texpandByScalar: function ( scalar ) {\n\n\t\t\tthis.min.addScalar( - scalar );\n\t\t\tthis.max.addScalar( scalar );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\tif ( point.x < this.min.x || point.x > this.max.x ||\n\t\t\t\t\t point.y < this.min.y || point.y > this.max.y ||\n\t\t\t\t\t point.z < this.min.z || point.z > this.max.z ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tcontainsBox: function ( box ) {\n\n\t\t\tif ( ( this.min.x <= box.min.x ) && ( box.max.x <= this.max.x ) &&\n\t\t\t\t ( this.min.y <= box.min.y ) && ( box.max.y <= this.max.y ) &&\n\t\t\t\t ( this.min.z <= box.min.z ) && ( box.max.z <= this.max.z ) ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tgetParameter: function ( point, optionalTarget ) {\n\n\t\t\t// This can potentially have a divide by zero if the box\n\t\t\t// has a size dimension of 0.\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\treturn result.set(\n\t\t\t\t( point.x - this.min.x ) / ( this.max.x - this.min.x ),\n\t\t\t\t( point.y - this.min.y ) / ( this.max.y - this.min.y ),\n\t\t\t\t( point.z - this.min.z ) / ( this.max.z - this.min.z )\n\t\t\t);\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\t// using 6 splitting planes to rule out intersections.\n\n\t\t\tif ( box.max.x < this.min.x || box.min.x > this.max.x ||\n\t\t\t\t\t box.max.y < this.min.y || box.min.y > this.max.y ||\n\t\t\t\t\t box.max.z < this.min.z || box.min.z > this.max.z ) {\n\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tintersectsSphere: ( function () {\n\n\t\t\tvar closestPoint;\n\n\t\t\treturn function intersectsSphere( sphere ) {\n\n\t\t\t\tif ( closestPoint === undefined ) closestPoint = new Vector3();\n\n\t\t\t\t// Find the point on the AABB closest to the sphere center.\n\t\t\t\tthis.clampPoint( sphere.center, closestPoint );\n\n\t\t\t\t// If that point is inside the sphere, the AABB and sphere intersect.\n\t\t\t\treturn closestPoint.distanceToSquared( sphere.center ) <= ( sphere.radius * sphere.radius );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// We compute the minimum and maximum dot product values. If those values\n\t\t\t// are on the same side (back or front) of the plane, then there is no intersection.\n\n\t\t\tvar min, max;\n\n\t\t\tif ( plane.normal.x > 0 ) {\n\n\t\t\t\tmin = plane.normal.x * this.min.x;\n\t\t\t\tmax = plane.normal.x * this.max.x;\n\n\t\t\t} else {\n\n\t\t\t\tmin = plane.normal.x * this.max.x;\n\t\t\t\tmax = plane.normal.x * this.min.x;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.y > 0 ) {\n\n\t\t\t\tmin += plane.normal.y * this.min.y;\n\t\t\t\tmax += plane.normal.y * this.max.y;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.y * this.max.y;\n\t\t\t\tmax += plane.normal.y * this.min.y;\n\n\t\t\t}\n\n\t\t\tif ( plane.normal.z > 0 ) {\n\n\t\t\t\tmin += plane.normal.z * this.min.z;\n\t\t\t\tmax += plane.normal.z * this.max.z;\n\n\t\t\t} else {\n\n\t\t\t\tmin += plane.normal.z * this.max.z;\n\t\t\t\tmax += plane.normal.z * this.min.z;\n\n\t\t\t}\n\n\t\t\treturn ( min <= plane.constant && max >= plane.constant );\n\n\t\t},\n\n\t\tclampPoint: function ( point, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.copy( point ).clamp( this.min, this.max );\n\n\t\t},\n\n\t\tdistanceToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceToPoint( point ) {\n\n\t\t\t\tvar clampedPoint = v1.copy( point ).clamp( this.min, this.max );\n\t\t\t\treturn clampedPoint.sub( point ).length();\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetBoundingSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function getBoundingSphere( optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Sphere();\n\n\t\t\t\tthis.getCenter( result.center );\n\n\t\t\t\tresult.radius = this.getSize( v1 ).length() * 0.5;\n\n\t\t\t\treturn result;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersect: function ( box ) {\n\n\t\t\tthis.min.max( box.min );\n\t\t\tthis.max.min( box.max );\n\n\t\t\t// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.\n\t\t\tif( this.isEmpty() ) this.makeEmpty();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tunion: function ( box ) {\n\n\t\t\tthis.min.min( box.min );\n\t\t\tthis.max.max( box.max );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyMatrix4: function () {\n\n\t\t\tvar points = [\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3(),\n\t\t\t\tnew Vector3()\n\t\t\t];\n\n\t\t\treturn function applyMatrix4( matrix ) {\n\n\t\t\t\t// transform of empty box is an empty box.\n\t\t\t\tif( this.isEmpty() ) return this;\n\n\t\t\t\t// NOTE: I am using a binary pattern to specify all 2^3 combinations below\n\t\t\t\tpoints[ 0 ].set( this.min.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 000\n\t\t\t\tpoints[ 1 ].set( this.min.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 001\n\t\t\t\tpoints[ 2 ].set( this.min.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 010\n\t\t\t\tpoints[ 3 ].set( this.min.x, this.max.y, this.max.z ).applyMatrix4( matrix ); // 011\n\t\t\t\tpoints[ 4 ].set( this.max.x, this.min.y, this.min.z ).applyMatrix4( matrix ); // 100\n\t\t\t\tpoints[ 5 ].set( this.max.x, this.min.y, this.max.z ).applyMatrix4( matrix ); // 101\n\t\t\t\tpoints[ 6 ].set( this.max.x, this.max.y, this.min.z ).applyMatrix4( matrix ); // 110\n\t\t\t\tpoints[ 7 ].set( this.max.x, this.max.y, this.max.z ).applyMatrix4( matrix );\t// 111\n\n\t\t\t\tthis.setFromPoints( points );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.min.add( offset );\n\t\t\tthis.max.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( box ) {\n\n\t\t\treturn box.min.equals( this.min ) && box.max.equals( this.max );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Sphere( center, radius ) {\n\n\t\tthis.center = ( center !== undefined ) ? center : new Vector3();\n\t\tthis.radius = ( radius !== undefined ) ? radius : 0;\n\n\t}\n\n\tSphere.prototype = {\n\n\t\tconstructor: Sphere,\n\n\t\tset: function ( center, radius ) {\n\n\t\t\tthis.center.copy( center );\n\t\t\tthis.radius = radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPoints: function () {\n\n\t\t\tvar box = new Box3();\n\n\t\t\treturn function setFromPoints( points, optionalCenter ) {\n\n\t\t\t\tvar center = this.center;\n\n\t\t\t\tif ( optionalCenter !== undefined ) {\n\n\t\t\t\t\tcenter.copy( optionalCenter );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbox.setFromPoints( points ).getCenter( center );\n\n\t\t\t\t}\n\n\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( points[ i ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( sphere ) {\n\n\t\t\tthis.center.copy( sphere.center );\n\t\t\tthis.radius = sphere.radius;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tempty: function () {\n\n\t\t\treturn ( this.radius <= 0 );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceToSquared( this.center ) <= ( this.radius * this.radius ) );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn ( point.distanceTo( this.center ) - this.radius );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar radiusSum = this.radius + sphere.radius;\n\n\t\t\treturn sphere.center.distanceToSquared( this.center ) <= ( radiusSum * radiusSum );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsSphere( this );\n\n\t\t},\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// We use the following equation to compute the signed distance from\n\t\t\t// the center of the sphere to the plane.\n\t\t\t//\n\t\t\t// distance = q * n - d\n\t\t\t//\n\t\t\t// If this distance is greater than the radius of the sphere,\n\t\t\t// then there is no intersection.\n\n\t\t\treturn Math.abs( this.center.dot( plane.normal ) - plane.constant ) <= this.radius;\n\n\t\t},\n\n\t\tclampPoint: function ( point, optionalTarget ) {\n\n\t\t\tvar deltaLengthSq = this.center.distanceToSquared( point );\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\tresult.copy( point );\n\n\t\t\tif ( deltaLengthSq > ( this.radius * this.radius ) ) {\n\n\t\t\t\tresult.sub( this.center ).normalize();\n\t\t\t\tresult.multiplyScalar( this.radius ).add( this.center );\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\tgetBoundingBox: function ( optionalTarget ) {\n\n\t\t\tvar box = optionalTarget || new Box3();\n\n\t\t\tbox.set( this.center, this.center );\n\t\t\tbox.expandByScalar( this.radius );\n\n\t\t\treturn box;\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.center.applyMatrix4( matrix );\n\t\t\tthis.radius = this.radius * matrix.getMaxScaleOnAxis();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.center.add( offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( sphere ) {\n\n\t\t\treturn sphere.center.equals( this.center ) && ( sphere.radius === this.radius );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t * @author tschw\n\t */\n\n\tfunction Matrix3() {\n\n\t\tthis.elements = new Float32Array( [\n\n\t\t\t1, 0, 0,\n\t\t\t0, 1, 0,\n\t\t\t0, 0, 1\n\n\t\t] );\n\n\t\tif ( arguments.length > 0 ) {\n\n\t\t\tconsole.error( 'THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.' );\n\n\t\t}\n\n\t}\n\n\tMatrix3.prototype = {\n\n\t\tconstructor: Matrix3,\n\n\t\tisMatrix3: true,\n\n\t\tset: function ( n11, n12, n13, n21, n22, n23, n31, n32, n33 ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] = n11; te[ 1 ] = n21; te[ 2 ] = n31;\n\t\t\tte[ 3 ] = n12; te[ 4 ] = n22; te[ 5 ] = n32;\n\t\t\tte[ 6 ] = n13; te[ 7 ] = n23; te[ 8 ] = n33;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tidentity: function () {\n\n\t\t\tthis.set(\n\n\t\t\t\t1, 0, 0,\n\t\t\t\t0, 1, 0,\n\t\t\t\t0, 0, 1\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().fromArray( this.elements );\n\n\t\t},\n\n\t\tcopy: function ( m ) {\n\n\t\t\tvar me = m.elements;\n\n\t\t\tthis.set(\n\n\t\t\t\tme[ 0 ], me[ 3 ], me[ 6 ],\n\t\t\t\tme[ 1 ], me[ 4 ], me[ 7 ],\n\t\t\t\tme[ 2 ], me[ 5 ], me[ 8 ]\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix4: function( m ) {\n\n\t\t\tvar me = m.elements;\n\n\t\t\tthis.set(\n\n\t\t\t\tme[ 0 ], me[ 4 ], me[ 8 ],\n\t\t\t\tme[ 1 ], me[ 5 ], me[ 9 ],\n\t\t\t\tme[ 2 ], me[ 6 ], me[ 10 ]\n\n\t\t\t);\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tapplyToVector3Array: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function applyToVector3Array( array, offset, length ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tif ( offset === undefined ) offset = 0;\n\t\t\t\tif ( length === undefined ) length = array.length;\n\n\t\t\t\tfor ( var i = 0, j = offset; i < length; i += 3, j += 3 ) {\n\n\t\t\t\t\tv1.fromArray( array, j );\n\t\t\t\t\tv1.applyMatrix3( this );\n\t\t\t\t\tv1.toArray( array, j );\n\n\t\t\t\t}\n\n\t\t\t\treturn array;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyToBuffer: function () {\n\n\t\t\tvar v1;\n\n\t\t\treturn function applyToBuffer( buffer, offset, length ) {\n\n\t\t\t\tif ( v1 === undefined ) v1 = new Vector3();\n\t\t\t\tif ( offset === undefined ) offset = 0;\n\t\t\t\tif ( length === undefined ) length = buffer.length / buffer.itemSize;\n\n\t\t\t\tfor ( var i = 0, j = offset; i < length; i ++, j ++ ) {\n\n\t\t\t\t\tv1.x = buffer.getX( j );\n\t\t\t\t\tv1.y = buffer.getY( j );\n\t\t\t\t\tv1.z = buffer.getZ( j );\n\n\t\t\t\t\tv1.applyMatrix3( this );\n\n\t\t\t\t\tbuffer.setXYZ( j, v1.x, v1.y, v1.z );\n\n\t\t\t\t}\n\n\t\t\t\treturn buffer;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmultiplyScalar: function ( s ) {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tte[ 0 ] *= s; te[ 3 ] *= s; te[ 6 ] *= s;\n\t\t\tte[ 1 ] *= s; te[ 4 ] *= s; te[ 7 ] *= s;\n\t\t\tte[ 2 ] *= s; te[ 5 ] *= s; te[ 8 ] *= s;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdeterminant: function () {\n\n\t\t\tvar te = this.elements;\n\n\t\t\tvar a = te[ 0 ], b = te[ 1 ], c = te[ 2 ],\n\t\t\t\td = te[ 3 ], e = te[ 4 ], f = te[ 5 ],\n\t\t\t\tg = te[ 6 ], h = te[ 7 ], i = te[ 8 ];\n\n\t\t\treturn a * e * i - a * f * h - b * d * i + b * f * g + c * d * h - c * e * g;\n\n\t\t},\n\n\t\tgetInverse: function ( matrix, throwOnDegenerate ) {\n\n\t\t\tif ( (matrix && matrix.isMatrix4) ) {\n\n\t\t\t\tconsole.error( \"THREE.Matrix3.getInverse no longer takes a Matrix4 argument.\" );\n\n\t\t\t}\n\n\t\t\tvar me = matrix.elements,\n\t\t\t\tte = this.elements,\n\n\t\t\t\tn11 = me[ 0 ], n21 = me[ 1 ], n31 = me[ 2 ],\n\t\t\t\tn12 = me[ 3 ], n22 = me[ 4 ], n32 = me[ 5 ],\n\t\t\t\tn13 = me[ 6 ], n23 = me[ 7 ], n33 = me[ 8 ],\n\n\t\t\t\tt11 = n33 * n22 - n32 * n23,\n\t\t\t\tt12 = n32 * n13 - n33 * n12,\n\t\t\t\tt13 = n23 * n12 - n22 * n13,\n\n\t\t\t\tdet = n11 * t11 + n21 * t12 + n31 * t13;\n\n\t\t\tif ( det === 0 ) {\n\n\t\t\t\tvar msg = \"THREE.Matrix3.getInverse(): can't invert matrix, determinant is 0\";\n\n\t\t\t\tif ( throwOnDegenerate === true ) {\n\n\t\t\t\t\tthrow new Error( msg );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tconsole.warn( msg );\n\n\t\t\t\t}\n\n\t\t\t\treturn this.identity();\n\t\t\t}\n\n\t\t\tvar detInv = 1 / det;\n\n\t\t\tte[ 0 ] = t11 * detInv;\n\t\t\tte[ 1 ] = ( n31 * n23 - n33 * n21 ) * detInv;\n\t\t\tte[ 2 ] = ( n32 * n21 - n31 * n22 ) * detInv;\n\n\t\t\tte[ 3 ] = t12 * detInv;\n\t\t\tte[ 4 ] = ( n33 * n11 - n31 * n13 ) * detInv;\n\t\t\tte[ 5 ] = ( n31 * n12 - n32 * n11 ) * detInv;\n\n\t\t\tte[ 6 ] = t13 * detInv;\n\t\t\tte[ 7 ] = ( n21 * n13 - n23 * n11 ) * detInv;\n\t\t\tte[ 8 ] = ( n22 * n11 - n21 * n12 ) * detInv;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttranspose: function () {\n\n\t\t\tvar tmp, m = this.elements;\n\n\t\t\ttmp = m[ 1 ]; m[ 1 ] = m[ 3 ]; m[ 3 ] = tmp;\n\t\t\ttmp = m[ 2 ]; m[ 2 ] = m[ 6 ]; m[ 6 ] = tmp;\n\t\t\ttmp = m[ 5 ]; m[ 5 ] = m[ 7 ]; m[ 7 ] = tmp;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tflattenToArrayOffset: function ( array, offset ) {\n\n\t\t\tconsole.warn( \"THREE.Matrix3: .flattenToArrayOffset is deprecated \" +\n\t\t\t\t\t\"- just use .toArray instead.\" );\n\n\t\t\treturn this.toArray( array, offset );\n\n\t\t},\n\n\t\tgetNormalMatrix: function ( matrix4 ) {\n\n\t\t\treturn this.setFromMatrix4( matrix4 ).getInverse( this ).transpose();\n\n\t\t},\n\n\t\ttransposeIntoArray: function ( r ) {\n\n\t\t\tvar m = this.elements;\n\n\t\t\tr[ 0 ] = m[ 0 ];\n\t\t\tr[ 1 ] = m[ 3 ];\n\t\t\tr[ 2 ] = m[ 6 ];\n\t\t\tr[ 3 ] = m[ 1 ];\n\t\t\tr[ 4 ] = m[ 4 ];\n\t\t\tr[ 5 ] = m[ 7 ];\n\t\t\tr[ 6 ] = m[ 2 ];\n\t\t\tr[ 7 ] = m[ 5 ];\n\t\t\tr[ 8 ] = m[ 8 ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tfromArray: function ( array, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tfor( var i = 0; i < 9; i ++ ) {\n\n\t\t\t\tthis.elements[ i ] = array[ i + offset ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar te = this.elements;\n\n\t\t\tarray[ offset ] = te[ 0 ];\n\t\t\tarray[ offset + 1 ] = te[ 1 ];\n\t\t\tarray[ offset + 2 ] = te[ 2 ];\n\n\t\t\tarray[ offset + 3 ] = te[ 3 ];\n\t\t\tarray[ offset + 4 ] = te[ 4 ];\n\t\t\tarray[ offset + 5 ] = te[ 5 ];\n\n\t\t\tarray[ offset + 6 ] = te[ 6 ];\n\t\t\tarray[ offset + 7 ] = te[ 7 ];\n\t\t\tarray[ offset + 8 ] = te[ 8 ];\n\n\t\t\treturn array;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Plane( normal, constant ) {\n\n\t\tthis.normal = ( normal !== undefined ) ? normal : new Vector3( 1, 0, 0 );\n\t\tthis.constant = ( constant !== undefined ) ? constant : 0;\n\n\t}\n\n\tPlane.prototype = {\n\n\t\tconstructor: Plane,\n\n\t\tset: function ( normal, constant ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetComponents: function ( x, y, z, w ) {\n\n\t\t\tthis.normal.set( x, y, z );\n\t\t\tthis.constant = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromNormalAndCoplanarPoint: function ( normal, point ) {\n\n\t\t\tthis.normal.copy( normal );\n\t\t\tthis.constant = - point.dot( this.normal );\t// must be this.normal, not normal, as this.normal is normalized\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromCoplanarPoints: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function setFromCoplanarPoints( a, b, c ) {\n\n\t\t\t\tvar normal = v1.subVectors( c, b ).cross( v2.subVectors( a, b ) ).normalize();\n\n\t\t\t\t// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?\n\n\t\t\t\tthis.setFromNormalAndCoplanarPoint( normal, a );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( plane ) {\n\n\t\t\tthis.normal.copy( plane.normal );\n\t\t\tthis.constant = plane.constant;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\t// Note: will lead to a divide by zero if the plane is invalid.\n\n\t\t\tvar inverseNormalLength = 1.0 / this.normal.length();\n\t\t\tthis.normal.multiplyScalar( inverseNormalLength );\n\t\t\tthis.constant *= inverseNormalLength;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnegate: function () {\n\n\t\t\tthis.constant *= - 1;\n\t\t\tthis.normal.negate();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn this.normal.dot( point ) + this.constant;\n\n\t\t},\n\n\t\tdistanceToSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) - sphere.radius;\n\n\t\t},\n\n\t\tprojectPoint: function ( point, optionalTarget ) {\n\n\t\t\treturn this.orthoPoint( point, optionalTarget ).sub( point ).negate();\n\n\t\t},\n\n\t\torthoPoint: function ( point, optionalTarget ) {\n\n\t\t\tvar perpendicularMagnitude = this.distanceToPoint( point );\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.copy( this.normal ).multiplyScalar( perpendicularMagnitude );\n\n\t\t},\n\n\t\tintersectLine: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectLine( line, optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\t\tvar direction = line.delta( v1 );\n\n\t\t\t\tvar denominator = this.normal.dot( direction );\n\n\t\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t\t// line is coplanar, return origin\n\t\t\t\t\tif ( this.distanceToPoint( line.start ) === 0 ) {\n\n\t\t\t\t\t\treturn result.copy( line.start );\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Unsure if this is the correct method to handle this case.\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\tvar t = - ( line.start.dot( this.normal ) + this.constant ) / denominator;\n\n\t\t\t\tif ( t < 0 || t > 1 ) {\n\n\t\t\t\t\treturn undefined;\n\n\t\t\t\t}\n\n\t\t\t\treturn result.copy( direction ).multiplyScalar( t ).add( line.start );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsLine: function ( line ) {\n\n\t\t\t// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.\n\n\t\t\tvar startSign = this.distanceToPoint( line.start );\n\t\t\tvar endSign = this.distanceToPoint( line.end );\n\n\t\t\treturn ( startSign < 0 && endSign > 0 ) || ( endSign < 0 && startSign > 0 );\n\n\t\t},\n\n\t\tintersectsBox: function ( box ) {\n\n\t\t\treturn box.intersectsPlane( this );\n\n\t\t},\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn sphere.intersectsPlane( this );\n\n\t\t},\n\n\t\tcoplanarPoint: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.copy( this.normal ).multiplyScalar( - this.constant );\n\n\t\t},\n\n\t\tapplyMatrix4: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar m1 = new Matrix3();\n\n\t\t\treturn function applyMatrix4( matrix, optionalNormalMatrix ) {\n\n\t\t\t\tvar referencePoint = this.coplanarPoint( v1 ).applyMatrix4( matrix );\n\n\t\t\t\t// transform normal based on theory here:\n\t\t\t\t// http://www.songho.ca/opengl/gl_normaltransform.html\n\t\t\t\tvar normalMatrix = optionalNormalMatrix || m1.getNormalMatrix( matrix );\n\t\t\t\tvar normal = this.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t// recalculate constant (like in setFromNormalAndCoplanarPoint)\n\t\t\t\tthis.constant = - referencePoint.dot( normal );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function ( offset ) {\n\n\t\t\tthis.constant = this.constant - offset.dot( this.normal );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( plane ) {\n\n\t\t\treturn plane.normal.equals( this.normal ) && ( plane.constant === this.constant );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Frustum( p0, p1, p2, p3, p4, p5 ) {\n\n\t\tthis.planes = [\n\n\t\t\t( p0 !== undefined ) ? p0 : new Plane(),\n\t\t\t( p1 !== undefined ) ? p1 : new Plane(),\n\t\t\t( p2 !== undefined ) ? p2 : new Plane(),\n\t\t\t( p3 !== undefined ) ? p3 : new Plane(),\n\t\t\t( p4 !== undefined ) ? p4 : new Plane(),\n\t\t\t( p5 !== undefined ) ? p5 : new Plane()\n\n\t\t];\n\n\t}\n\n\tFrustum.prototype = {\n\n\t\tconstructor: Frustum,\n\n\t\tset: function ( p0, p1, p2, p3, p4, p5 ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tplanes[ 0 ].copy( p0 );\n\t\t\tplanes[ 1 ].copy( p1 );\n\t\t\tplanes[ 2 ].copy( p2 );\n\t\t\tplanes[ 3 ].copy( p3 );\n\t\t\tplanes[ 4 ].copy( p4 );\n\t\t\tplanes[ 5 ].copy( p5 );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( frustum ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tplanes[ i ].copy( frustum.planes[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromMatrix: function ( m ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar me = m.elements;\n\t\t\tvar me0 = me[ 0 ], me1 = me[ 1 ], me2 = me[ 2 ], me3 = me[ 3 ];\n\t\t\tvar me4 = me[ 4 ], me5 = me[ 5 ], me6 = me[ 6 ], me7 = me[ 7 ];\n\t\t\tvar me8 = me[ 8 ], me9 = me[ 9 ], me10 = me[ 10 ], me11 = me[ 11 ];\n\t\t\tvar me12 = me[ 12 ], me13 = me[ 13 ], me14 = me[ 14 ], me15 = me[ 15 ];\n\n\t\t\tplanes[ 0 ].setComponents( me3 - me0, me7 - me4, me11 - me8, me15 - me12 ).normalize();\n\t\t\tplanes[ 1 ].setComponents( me3 + me0, me7 + me4, me11 + me8, me15 + me12 ).normalize();\n\t\t\tplanes[ 2 ].setComponents( me3 + me1, me7 + me5, me11 + me9, me15 + me13 ).normalize();\n\t\t\tplanes[ 3 ].setComponents( me3 - me1, me7 - me5, me11 - me9, me15 - me13 ).normalize();\n\t\t\tplanes[ 4 ].setComponents( me3 - me2, me7 - me6, me11 - me10, me15 - me14 ).normalize();\n\t\t\tplanes[ 5 ].setComponents( me3 + me2, me7 + me6, me11 + me10, me15 + me14 ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tintersectsObject: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsObject( object ) {\n\n\t\t\t\tvar geometry = object.geometry;\n\n\t\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere )\n\t\t\t\t\t.applyMatrix4( object.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSprite: function () {\n\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function intersectsSprite( sprite ) {\n\n\t\t\t\tsphere.center.set( 0, 0, 0 );\n\t\t\t\tsphere.radius = 0.7071067811865476;\n\t\t\t\tsphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\t\treturn this.intersectsSphere( sphere );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\tvar planes = this.planes;\n\t\t\tvar center = sphere.center;\n\t\t\tvar negRadius = - sphere.radius;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tvar distance = planes[ i ].distanceToPoint( center );\n\n\t\t\t\tif ( distance < negRadius ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t},\n\n\t\tintersectsBox: function () {\n\n\t\t\tvar p1 = new Vector3(),\n\t\t\t\tp2 = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\tvar planes = this.planes;\n\n\t\t\t\tfor ( var i = 0; i < 6 ; i ++ ) {\n\n\t\t\t\t\tvar plane = planes[ i ];\n\n\t\t\t\t\tp1.x = plane.normal.x > 0 ? box.min.x : box.max.x;\n\t\t\t\t\tp2.x = plane.normal.x > 0 ? box.max.x : box.min.x;\n\t\t\t\t\tp1.y = plane.normal.y > 0 ? box.min.y : box.max.y;\n\t\t\t\t\tp2.y = plane.normal.y > 0 ? box.max.y : box.min.y;\n\t\t\t\t\tp1.z = plane.normal.z > 0 ? box.min.z : box.max.z;\n\t\t\t\t\tp2.z = plane.normal.z > 0 ? box.max.z : box.min.z;\n\n\t\t\t\t\tvar d1 = plane.distanceToPoint( p1 );\n\t\t\t\t\tvar d2 = plane.distanceToPoint( p2 );\n\n\t\t\t\t\t// if both outside plane, no intersection\n\n\t\t\t\t\tif ( d1 < 0 && d2 < 0 ) {\n\n\t\t\t\t\t\treturn false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t};\n\n\t\t}(),\n\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\tvar planes = this.planes;\n\n\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\tif ( planes[ i ].distanceToPoint( point ) < 0 ) {\n\n\t\t\t\t\treturn false;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn true;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLShadowMap( _renderer, _lights, _objects, capabilities ) {\n\n\t\tvar _gl = _renderer.context,\n\t\t_state = _renderer.state,\n\t\t_frustum = new Frustum(),\n\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t_lightShadows = _lights.shadows,\n\n\t\t_shadowMapSize = new Vector2(),\n\t\t_maxShadowMapSize = new Vector2( capabilities.maxTextureSize, capabilities.maxTextureSize ),\n\n\t\t_lookTarget = new Vector3(),\n\t\t_lightPositionWorld = new Vector3(),\n\n\t\t_renderList = [],\n\n\t\t_MorphingFlag = 1,\n\t\t_SkinningFlag = 2,\n\n\t\t_NumberOfMaterialVariants = ( _MorphingFlag | _SkinningFlag ) + 1,\n\n\t\t_depthMaterials = new Array( _NumberOfMaterialVariants ),\n\t\t_distanceMaterials = new Array( _NumberOfMaterialVariants ),\n\n\t\t_materialCache = {};\n\n\t\tvar cubeDirections = [\n\t\t\tnew Vector3( 1, 0, 0 ), new Vector3( - 1, 0, 0 ), new Vector3( 0, 0, 1 ),\n\t\t\tnew Vector3( 0, 0, - 1 ), new Vector3( 0, 1, 0 ), new Vector3( 0, - 1, 0 )\n\t\t];\n\n\t\tvar cubeUps = [\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ), new Vector3( 0, 1, 0 ),\n\t\t\tnew Vector3( 0, 1, 0 ), new Vector3( 0, 0, 1 ),\tnew Vector3( 0, 0, - 1 )\n\t\t];\n\n\t\tvar cube2DViewPorts = [\n\t\t\tnew Vector4(), new Vector4(), new Vector4(),\n\t\t\tnew Vector4(), new Vector4(), new Vector4()\n\t\t];\n\n\t\t// init\n\n\t\tvar depthMaterialTemplate = new MeshDepthMaterial();\n\t\tdepthMaterialTemplate.depthPacking = RGBADepthPacking;\n\t\tdepthMaterialTemplate.clipping = true;\n\n\t\tvar distanceShader = ShaderLib[ \"distanceRGBA\" ];\n\t\tvar distanceUniforms = UniformsUtils.clone( distanceShader.uniforms );\n\n\t\tfor ( var i = 0; i !== _NumberOfMaterialVariants; ++ i ) {\n\n\t\t\tvar useMorphing = ( i & _MorphingFlag ) !== 0;\n\t\t\tvar useSkinning = ( i & _SkinningFlag ) !== 0;\n\n\t\t\tvar depthMaterial = depthMaterialTemplate.clone();\n\t\t\tdepthMaterial.morphTargets = useMorphing;\n\t\t\tdepthMaterial.skinning = useSkinning;\n\n\t\t\t_depthMaterials[ i ] = depthMaterial;\n\n\t\t\tvar distanceMaterial = new ShaderMaterial( {\n\t\t\t\tdefines: {\n\t\t\t\t\t'USE_SHADOWMAP': ''\n\t\t\t\t},\n\t\t\t\tuniforms: distanceUniforms,\n\t\t\t\tvertexShader: distanceShader.vertexShader,\n\t\t\t\tfragmentShader: distanceShader.fragmentShader,\n\t\t\t\tmorphTargets: useMorphing,\n\t\t\t\tskinning: useSkinning,\n\t\t\t\tclipping: true\n\t\t\t} );\n\n\t\t\t_distanceMaterials[ i ] = distanceMaterial;\n\n\t\t}\n\n\t\t//\n\n\t\tvar scope = this;\n\n\t\tthis.enabled = false;\n\n\t\tthis.autoUpdate = true;\n\t\tthis.needsUpdate = false;\n\n\t\tthis.type = PCFShadowMap;\n\n\t\tthis.renderReverseSided = true;\n\t\tthis.renderSingleSided = true;\n\n\t\tthis.render = function ( scene, camera ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\t\t\tif ( scope.autoUpdate === false && scope.needsUpdate === false ) return;\n\n\t\t\tif ( _lightShadows.length === 0 ) return;\n\n\t\t\t// Set GL state for depth map.\n\t\t\t_state.clearColor( 1, 1, 1, 1 );\n\t\t\t_state.disable( _gl.BLEND );\n\t\t\t_state.setDepthTest( true );\n\t\t\t_state.setScissorTest( false );\n\n\t\t\t// render depth map\n\n\t\t\tvar faceCount, isPointLight;\n\n\t\t\tfor ( var i = 0, il = _lightShadows.length; i < il; i ++ ) {\n\n\t\t\t\tvar light = _lightShadows[ i ];\n\t\t\t\tvar shadow = light.shadow;\n\n\t\t\t\tif ( shadow === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLShadowMap:', light, 'has no shadow.' );\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowCamera = shadow.camera;\n\n\t\t\t\t_shadowMapSize.copy( shadow.mapSize );\n\t\t\t\t_shadowMapSize.min( _maxShadowMapSize );\n\n\t\t\t\tif ( (light && light.isPointLight) ) {\n\n\t\t\t\t\tfaceCount = 6;\n\t\t\t\t\tisPointLight = true;\n\n\t\t\t\t\tvar vpWidth = _shadowMapSize.x;\n\t\t\t\t\tvar vpHeight = _shadowMapSize.y;\n\n\t\t\t\t\t// These viewports map a cube-map onto a 2D texture with the\n\t\t\t\t\t// following orientation:\n\t\t\t\t\t//\n\t\t\t\t\t// xzXZ\n\t\t\t\t\t// y Y\n\t\t\t\t\t//\n\t\t\t\t\t// X - Positive x direction\n\t\t\t\t\t// x - Negative x direction\n\t\t\t\t\t// Y - Positive y direction\n\t\t\t\t\t// y - Negative y direction\n\t\t\t\t\t// Z - Positive z direction\n\t\t\t\t\t// z - Negative z direction\n\n\t\t\t\t\t// positive X\n\t\t\t\t\tcube2DViewPorts[ 0 ].set( vpWidth * 2, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative X\n\t\t\t\t\tcube2DViewPorts[ 1 ].set( 0, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Z\n\t\t\t\t\tcube2DViewPorts[ 2 ].set( vpWidth * 3, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// negative Z\n\t\t\t\t\tcube2DViewPorts[ 3 ].set( vpWidth, vpHeight, vpWidth, vpHeight );\n\t\t\t\t\t// positive Y\n\t\t\t\t\tcube2DViewPorts[ 4 ].set( vpWidth * 3, 0, vpWidth, vpHeight );\n\t\t\t\t\t// negative Y\n\t\t\t\t\tcube2DViewPorts[ 5 ].set( vpWidth, 0, vpWidth, vpHeight );\n\n\t\t\t\t\t_shadowMapSize.x *= 4.0;\n\t\t\t\t\t_shadowMapSize.y *= 2.0;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfaceCount = 1;\n\t\t\t\t\tisPointLight = false;\n\n\t\t\t\t}\n\n\t\t\t\tif ( shadow.map === null ) {\n\n\t\t\t\t\tvar pars = { minFilter: NearestFilter, magFilter: NearestFilter, format: RGBAFormat };\n\n\t\t\t\t\tshadow.map = new WebGLRenderTarget( _shadowMapSize.x, _shadowMapSize.y, pars );\n\n\t\t\t\t\tshadowCamera.updateProjectionMatrix();\n\n\t\t\t\t}\n\n\t\t\t\tif ( (shadow && shadow.isSpotLightShadow) ) {\n\n\t\t\t\t\tshadow.update( light );\n\n\t\t\t\t}\n\n\t\t\t\tvar shadowMap = shadow.map;\n\t\t\t\tvar shadowMatrix = shadow.matrix;\n\n\t\t\t\t_lightPositionWorld.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\tshadowCamera.position.copy( _lightPositionWorld );\n\n\t\t\t\t_renderer.setRenderTarget( shadowMap );\n\t\t\t\t_renderer.clear();\n\n\t\t\t\t// render shadow map for each cube face (if omni-directional) or\n\t\t\t\t// run a single pass if not\n\n\t\t\t\tfor ( var face = 0; face < faceCount; face ++ ) {\n\n\t\t\t\t\tif ( isPointLight ) {\n\n\t\t\t\t\t\t_lookTarget.copy( shadowCamera.position );\n\t\t\t\t\t\t_lookTarget.add( cubeDirections[ face ] );\n\t\t\t\t\t\tshadowCamera.up.copy( cubeUps[ face ] );\n\t\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\n\t\t\t\t\t\tvar vpDimensions = cube2DViewPorts[ face ];\n\t\t\t\t\t\t_state.viewport( vpDimensions );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t_lookTarget.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\t\tshadowCamera.lookAt( _lookTarget );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tshadowCamera.updateMatrixWorld();\n\t\t\t\t\tshadowCamera.matrixWorldInverse.getInverse( shadowCamera.matrixWorld );\n\n\t\t\t\t\t// compute shadow matrix\n\n\t\t\t\t\tshadowMatrix.set(\n\t\t\t\t\t\t0.5, 0.0, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.5, 0.0, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.5, 0.5,\n\t\t\t\t\t\t0.0, 0.0, 0.0, 1.0\n\t\t\t\t\t);\n\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.projectionMatrix );\n\t\t\t\t\tshadowMatrix.multiply( shadowCamera.matrixWorldInverse );\n\n\t\t\t\t\t// update camera matrices and frustum\n\n\t\t\t\t\t_projScreenMatrix.multiplyMatrices( shadowCamera.projectionMatrix, shadowCamera.matrixWorldInverse );\n\t\t\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\t\t\t// set object matrices & frustum culling\n\n\t\t\t\t\t_renderList.length = 0;\n\n\t\t\t\t\tprojectObject( scene, camera, shadowCamera );\n\n\t\t\t\t\t// render shadow map\n\t\t\t\t\t// render regular objects\n\n\t\t\t\t\tfor ( var j = 0, jl = _renderList.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar object = _renderList[ j ];\n\t\t\t\t\t\tvar geometry = _objects.update( object );\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tif ( (material && material.isMultiMaterial) ) {\n\n\t\t\t\t\t\t\tvar groups = geometry.groups;\n\t\t\t\t\t\t\tvar materials = material.materials;\n\n\t\t\t\t\t\t\tfor ( var k = 0, kl = groups.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\t\t\tvar group = groups[ k ];\n\t\t\t\t\t\t\t\tvar groupMaterial = materials[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\tif ( groupMaterial.visible === true ) {\n\n\t\t\t\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, groupMaterial, isPointLight, _lightPositionWorld );\n\t\t\t\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, group );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar depthMaterial = getDepthMaterial( object, material, isPointLight, _lightPositionWorld );\n\t\t\t\t\t\t\t_renderer.renderBufferDirect( shadowCamera, null, geometry, depthMaterial, object, null );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Restore GL state.\n\t\t\tvar clearColor = _renderer.getClearColor(),\n\t\t\tclearAlpha = _renderer.getClearAlpha();\n\t\t\t_renderer.setClearColor( clearColor, clearAlpha );\n\n\t\t\tscope.needsUpdate = false;\n\n\t\t};\n\n\t\tfunction getDepthMaterial( object, material, isPointLight, lightPositionWorld ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tvar result = null;\n\n\t\t\tvar materialVariants = _depthMaterials;\n\t\t\tvar customMaterial = object.customDepthMaterial;\n\n\t\t\tif ( isPointLight ) {\n\n\t\t\t\tmaterialVariants = _distanceMaterials;\n\t\t\t\tcustomMaterial = object.customDistanceMaterial;\n\n\t\t\t}\n\n\t\t\tif ( ! customMaterial ) {\n\n\t\t\t\tvar useMorphing = false;\n\n\t\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\t\tif ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphAttributes && geometry.morphAttributes.position && geometry.morphAttributes.position.length > 0;\n\n\t\t\t\t\t} else if ( (geometry && geometry.isGeometry) ) {\n\n\t\t\t\t\t\tuseMorphing = geometry.morphTargets && geometry.morphTargets.length > 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar useSkinning = object.isSkinnedMesh && material.skinning;\n\n\t\t\t\tvar variantIndex = 0;\n\n\t\t\t\tif ( useMorphing ) variantIndex |= _MorphingFlag;\n\t\t\t\tif ( useSkinning ) variantIndex |= _SkinningFlag;\n\n\t\t\t\tresult = materialVariants[ variantIndex ];\n\n\t\t\t} else {\n\n\t\t\t\tresult = customMaterial;\n\n\t\t\t}\n\n\t\t\tif ( _renderer.localClippingEnabled &&\n\t\t\t\t material.clipShadows === true &&\n\t\t\t\t\tmaterial.clippingPlanes.length !== 0 ) {\n\n\t\t\t\t// in this case we need a unique material instance reflecting the\n\t\t\t\t// appropriate state\n\n\t\t\t\tvar keyA = result.uuid, keyB = material.uuid;\n\n\t\t\t\tvar materialsForVariant = _materialCache[ keyA ];\n\n\t\t\t\tif ( materialsForVariant === undefined ) {\n\n\t\t\t\t\tmaterialsForVariant = {};\n\t\t\t\t\t_materialCache[ keyA ] = materialsForVariant;\n\n\t\t\t\t}\n\n\t\t\t\tvar cachedMaterial = materialsForVariant[ keyB ];\n\n\t\t\t\tif ( cachedMaterial === undefined ) {\n\n\t\t\t\t\tcachedMaterial = result.clone();\n\t\t\t\t\tmaterialsForVariant[ keyB ] = cachedMaterial;\n\n\t\t\t\t}\n\n\t\t\t\tresult = cachedMaterial;\n\n\t\t\t}\n\n\t\t\tresult.visible = material.visible;\n\t\t\tresult.wireframe = material.wireframe;\n\n\t\t\tvar side = material.side;\n\n\t\t\tif ( scope.renderSingleSided && side == DoubleSide ) {\n\n\t\t\t\tside = FrontSide;\n\n\t\t\t}\n\n\t\t\tif ( scope.renderReverseSided ) {\n\n\t\t\t\tif ( side === FrontSide ) side = BackSide;\n\t\t\t\telse if ( side === BackSide ) side = FrontSide;\n\n\t\t\t}\n\n\t\t\tresult.side = side;\n\n\t\t\tresult.clipShadows = material.clipShadows;\n\t\t\tresult.clippingPlanes = material.clippingPlanes;\n\n\t\t\tresult.wireframeLinewidth = material.wireframeLinewidth;\n\t\t\tresult.linewidth = material.linewidth;\n\n\t\t\tif ( isPointLight && result.uniforms.lightPos !== undefined ) {\n\n\t\t\t\tresult.uniforms.lightPos.value.copy( lightPositionWorld );\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t\tfunction projectObject( object, camera, shadowCamera ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = ( object.layers.mask & camera.layers.mask ) !== 0;\n\n\t\t\tif ( visible && ( object.isMesh || object.isLine || object.isPoints ) ) {\n\n\t\t\t\tif ( object.castShadow && ( object.frustumCulled === false || _frustum.intersectsObject( object ) === true ) ) {\n\n\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\tif ( material.visible === true ) {\n\n\t\t\t\t\t\tobject.modelViewMatrix.multiplyMatrices( shadowCamera.matrixWorldInverse, object.matrixWorld );\n\t\t\t\t\t\t_renderList.push( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tprojectObject( children[ i ], camera, shadowCamera );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Ray( origin, direction ) {\n\n\t\tthis.origin = ( origin !== undefined ) ? origin : new Vector3();\n\t\tthis.direction = ( direction !== undefined ) ? direction : new Vector3();\n\n\t}\n\n\tRay.prototype = {\n\n\t\tconstructor: Ray,\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\tthis.origin.copy( origin );\n\t\t\tthis.direction.copy( direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( ray ) {\n\n\t\t\tthis.origin.copy( ray.origin );\n\t\t\tthis.direction.copy( ray.direction );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tat: function ( t, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\treturn result.copy( this.direction ).multiplyScalar( t ).add( this.origin );\n\n\t\t},\n\n\t\tlookAt: function ( v ) {\n\n\t\t\tthis.direction.copy( v ).sub( this.origin ).normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trecast: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function recast( t ) {\n\n\t\t\t\tthis.origin.copy( this.at( t, v1 ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\tresult.subVectors( point, this.origin );\n\t\t\tvar directionDistance = result.dot( this.direction );\n\n\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\treturn result.copy( this.origin );\n\n\t\t\t}\n\n\t\t\treturn result.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t},\n\n\t\tdistanceToPoint: function ( point ) {\n\n\t\t\treturn Math.sqrt( this.distanceSqToPoint( point ) );\n\n\t\t},\n\n\t\tdistanceSqToPoint: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function distanceSqToPoint( point ) {\n\n\t\t\t\tvar directionDistance = v1.subVectors( point, this.origin ).dot( this.direction );\n\n\t\t\t\t// point behind the ray\n\n\t\t\t\tif ( directionDistance < 0 ) {\n\n\t\t\t\t\treturn this.origin.distanceToSquared( point );\n\n\t\t\t\t}\n\n\t\t\t\tv1.copy( this.direction ).multiplyScalar( directionDistance ).add( this.origin );\n\n\t\t\t\treturn v1.distanceToSquared( point );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tdistanceSqToSegment: function () {\n\n\t\t\tvar segCenter = new Vector3();\n\t\t\tvar segDir = new Vector3();\n\t\t\tvar diff = new Vector3();\n\n\t\t\treturn function distanceSqToSegment( v0, v1, optionalPointOnRay, optionalPointOnSegment ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h\n\t\t\t\t// It returns the min distance between the ray and the segment\n\t\t\t\t// defined by v0 and v1\n\t\t\t\t// It can also set two optional targets :\n\t\t\t\t// - The closest point on the ray\n\t\t\t\t// - The closest point on the segment\n\n\t\t\t\tsegCenter.copy( v0 ).add( v1 ).multiplyScalar( 0.5 );\n\t\t\t\tsegDir.copy( v1 ).sub( v0 ).normalize();\n\t\t\t\tdiff.copy( this.origin ).sub( segCenter );\n\n\t\t\t\tvar segExtent = v0.distanceTo( v1 ) * 0.5;\n\t\t\t\tvar a01 = - this.direction.dot( segDir );\n\t\t\t\tvar b0 = diff.dot( this.direction );\n\t\t\t\tvar b1 = - diff.dot( segDir );\n\t\t\t\tvar c = diff.lengthSq();\n\t\t\t\tvar det = Math.abs( 1 - a01 * a01 );\n\t\t\t\tvar s0, s1, sqrDist, extDet;\n\n\t\t\t\tif ( det > 0 ) {\n\n\t\t\t\t\t// The ray and segment are not parallel.\n\n\t\t\t\t\ts0 = a01 * b1 - b0;\n\t\t\t\t\ts1 = a01 * b0 - b1;\n\t\t\t\t\textDet = segExtent * det;\n\n\t\t\t\t\tif ( s0 >= 0 ) {\n\n\t\t\t\t\t\tif ( s1 >= - extDet ) {\n\n\t\t\t\t\t\t\tif ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t\t// region 0\n\t\t\t\t\t\t\t\t// Minimum at interior points of ray and segment.\n\n\t\t\t\t\t\t\t\tvar invDet = 1 / det;\n\t\t\t\t\t\t\t\ts0 *= invDet;\n\t\t\t\t\t\t\t\ts1 *= invDet;\n\t\t\t\t\t\t\t\tsqrDist = s0 * ( s0 + a01 * s1 + 2 * b0 ) + s1 * ( a01 * s0 + s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t// region 1\n\n\t\t\t\t\t\t\t\ts1 = segExtent;\n\t\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 5\n\n\t\t\t\t\t\t\ts1 = - segExtent;\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( s1 <= - extDet ) {\n\n\t\t\t\t\t\t\t// region 4\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( - a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? - segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else if ( s1 <= extDet ) {\n\n\t\t\t\t\t\t\t// region 3\n\n\t\t\t\t\t\t\ts0 = 0;\n\t\t\t\t\t\t\ts1 = Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// region 2\n\n\t\t\t\t\t\t\ts0 = Math.max( 0, - ( a01 * segExtent + b0 ) );\n\t\t\t\t\t\t\ts1 = ( s0 > 0 ) ? segExtent : Math.min( Math.max( - segExtent, - b1 ), segExtent );\n\t\t\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// Ray and segment are parallel.\n\n\t\t\t\t\ts1 = ( a01 > 0 ) ? - segExtent : segExtent;\n\t\t\t\t\ts0 = Math.max( 0, - ( a01 * s1 + b0 ) );\n\t\t\t\t\tsqrDist = - s0 * s0 + s1 * ( s1 + 2 * b1 ) + c;\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnRay ) {\n\n\t\t\t\t\toptionalPointOnRay.copy( this.direction ).multiplyScalar( s0 ).add( this.origin );\n\n\t\t\t\t}\n\n\t\t\t\tif ( optionalPointOnSegment ) {\n\n\t\t\t\t\toptionalPointOnSegment.copy( segDir ).multiplyScalar( s1 ).add( segCenter );\n\n\t\t\t\t}\n\n\t\t\t\treturn sqrDist;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectSphere: function () {\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function intersectSphere( sphere, optionalTarget ) {\n\n\t\t\t\tv1.subVectors( sphere.center, this.origin );\n\t\t\t\tvar tca = v1.dot( this.direction );\n\t\t\t\tvar d2 = v1.dot( v1 ) - tca * tca;\n\t\t\t\tvar radius2 = sphere.radius * sphere.radius;\n\n\t\t\t\tif ( d2 > radius2 ) return null;\n\n\t\t\t\tvar thc = Math.sqrt( radius2 - d2 );\n\n\t\t\t\t// t0 = first intersect point - entrance on front of sphere\n\t\t\t\tvar t0 = tca - thc;\n\n\t\t\t\t// t1 = second intersect point - exit point on back of sphere\n\t\t\t\tvar t1 = tca + thc;\n\n\t\t\t\t// test to see if both t0 and t1 are behind the ray - if so, return null\n\t\t\t\tif ( t0 < 0 && t1 < 0 ) return null;\n\n\t\t\t\t// test to see if t0 is behind the ray:\n\t\t\t\t// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,\n\t\t\t\t// in order to always return an intersect point that is in front of the ray.\n\t\t\t\tif ( t0 < 0 ) return this.at( t1, optionalTarget );\n\n\t\t\t\t// else t0 is in front of the ray, so return the first collision point scaled by t0\n\t\t\t\treturn this.at( t0, optionalTarget );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tintersectsSphere: function ( sphere ) {\n\n\t\t\treturn this.distanceToPoint( sphere.center ) <= sphere.radius;\n\n\t\t},\n\n\t\tdistanceToPlane: function ( plane ) {\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator === 0 ) {\n\n\t\t\t\t// line is coplanar, return origin\n\t\t\t\tif ( plane.distanceToPoint( this.origin ) === 0 ) {\n\n\t\t\t\t\treturn 0;\n\n\t\t\t\t}\n\n\t\t\t\t// Null is preferable to undefined since undefined means.... it is undefined\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar t = - ( this.origin.dot( plane.normal ) + plane.constant ) / denominator;\n\n\t\t\t// Return if the ray never intersects the plane\n\n\t\t\treturn t >= 0 ? t : null;\n\n\t\t},\n\n\t\tintersectPlane: function ( plane, optionalTarget ) {\n\n\t\t\tvar t = this.distanceToPlane( plane );\n\n\t\t\tif ( t === null ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\treturn this.at( t, optionalTarget );\n\n\t\t},\n\n\n\n\t\tintersectsPlane: function ( plane ) {\n\n\t\t\t// check if the ray lies on the plane first\n\n\t\t\tvar distToPoint = plane.distanceToPoint( this.origin );\n\n\t\t\tif ( distToPoint === 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\tvar denominator = plane.normal.dot( this.direction );\n\n\t\t\tif ( denominator * distToPoint < 0 ) {\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\t// ray origin is behind the plane (and is pointing behind it)\n\n\t\t\treturn false;\n\n\t\t},\n\n\t\tintersectBox: function ( box, optionalTarget ) {\n\n\t\t\tvar tmin, tmax, tymin, tymax, tzmin, tzmax;\n\n\t\t\tvar invdirx = 1 / this.direction.x,\n\t\t\t\tinvdiry = 1 / this.direction.y,\n\t\t\t\tinvdirz = 1 / this.direction.z;\n\n\t\t\tvar origin = this.origin;\n\n\t\t\tif ( invdirx >= 0 ) {\n\n\t\t\t\ttmin = ( box.min.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.max.x - origin.x ) * invdirx;\n\n\t\t\t} else {\n\n\t\t\t\ttmin = ( box.max.x - origin.x ) * invdirx;\n\t\t\t\ttmax = ( box.min.x - origin.x ) * invdirx;\n\n\t\t\t}\n\n\t\t\tif ( invdiry >= 0 ) {\n\n\t\t\t\ttymin = ( box.min.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.max.y - origin.y ) * invdiry;\n\n\t\t\t} else {\n\n\t\t\t\ttymin = ( box.max.y - origin.y ) * invdiry;\n\t\t\t\ttymax = ( box.min.y - origin.y ) * invdiry;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tymax ) || ( tymin > tmax ) ) return null;\n\n\t\t\t// These lines also handle the case where tmin or tmax is NaN\n\t\t\t// (result of 0 * Infinity). x !== x returns true if x is NaN\n\n\t\t\tif ( tymin > tmin || tmin !== tmin ) tmin = tymin;\n\n\t\t\tif ( tymax < tmax || tmax !== tmax ) tmax = tymax;\n\n\t\t\tif ( invdirz >= 0 ) {\n\n\t\t\t\ttzmin = ( box.min.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.max.z - origin.z ) * invdirz;\n\n\t\t\t} else {\n\n\t\t\t\ttzmin = ( box.max.z - origin.z ) * invdirz;\n\t\t\t\ttzmax = ( box.min.z - origin.z ) * invdirz;\n\n\t\t\t}\n\n\t\t\tif ( ( tmin > tzmax ) || ( tzmin > tmax ) ) return null;\n\n\t\t\tif ( tzmin > tmin || tmin !== tmin ) tmin = tzmin;\n\n\t\t\tif ( tzmax < tmax || tmax !== tmax ) tmax = tzmax;\n\n\t\t\t//return point closest to the ray (positive side)\n\n\t\t\tif ( tmax < 0 ) return null;\n\n\t\t\treturn this.at( tmin >= 0 ? tmin : tmax, optionalTarget );\n\n\t\t},\n\n\t\tintersectsBox: ( function () {\n\n\t\t\tvar v = new Vector3();\n\n\t\t\treturn function intersectsBox( box ) {\n\n\t\t\t\treturn this.intersectBox( box, v ) !== null;\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tintersectTriangle: function () {\n\n\t\t\t// Compute the offset origin, edges, and normal.\n\t\t\tvar diff = new Vector3();\n\t\t\tvar edge1 = new Vector3();\n\t\t\tvar edge2 = new Vector3();\n\t\t\tvar normal = new Vector3();\n\n\t\t\treturn function intersectTriangle( a, b, c, backfaceCulling, optionalTarget ) {\n\n\t\t\t\t// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h\n\n\t\t\t\tedge1.subVectors( b, a );\n\t\t\t\tedge2.subVectors( c, a );\n\t\t\t\tnormal.crossVectors( edge1, edge2 );\n\n\t\t\t\t// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,\n\t\t\t\t// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by\n\t\t\t\t// |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))\n\t\t\t\t// |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))\n\t\t\t\t// |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)\n\t\t\t\tvar DdN = this.direction.dot( normal );\n\t\t\t\tvar sign;\n\n\t\t\t\tif ( DdN > 0 ) {\n\n\t\t\t\t\tif ( backfaceCulling ) return null;\n\t\t\t\t\tsign = 1;\n\n\t\t\t\t} else if ( DdN < 0 ) {\n\n\t\t\t\t\tsign = - 1;\n\t\t\t\t\tDdN = - DdN;\n\n\t\t\t\t} else {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tdiff.subVectors( this.origin, a );\n\t\t\t\tvar DdQxE2 = sign * this.direction.dot( edge2.crossVectors( diff, edge2 ) );\n\n\t\t\t\t// b1 < 0, no intersection\n\t\t\t\tif ( DdQxE2 < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\tvar DdE1xQ = sign * this.direction.dot( edge1.cross( diff ) );\n\n\t\t\t\t// b2 < 0, no intersection\n\t\t\t\tif ( DdE1xQ < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// b1+b2 > 1, no intersection\n\t\t\t\tif ( DdQxE2 + DdE1xQ > DdN ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Line intersects triangle, check if ray does.\n\t\t\t\tvar QdN = - sign * diff.dot( normal );\n\n\t\t\t\t// t < 0, no intersection\n\t\t\t\tif ( QdN < 0 ) {\n\n\t\t\t\t\treturn null;\n\n\t\t\t\t}\n\n\t\t\t\t// Ray intersects triangle.\n\t\t\t\treturn this.at( QdN / DdN, optionalTarget );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tapplyMatrix4: function ( matrix4 ) {\n\n\t\t\tthis.direction.add( this.origin ).applyMatrix4( matrix4 );\n\t\t\tthis.origin.applyMatrix4( matrix4 );\n\t\t\tthis.direction.sub( this.origin );\n\t\t\tthis.direction.normalize();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( ray ) {\n\n\t\t\treturn ray.origin.equals( this.origin ) && ray.direction.equals( this.direction );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Euler( x, y, z, order ) {\n\n\t\tthis._x = x || 0;\n\t\tthis._y = y || 0;\n\t\tthis._z = z || 0;\n\t\tthis._order = order || Euler.DefaultOrder;\n\n\t}\n\n\tEuler.RotationOrders = [ 'XYZ', 'YZX', 'ZXY', 'XZY', 'YXZ', 'ZYX' ];\n\n\tEuler.DefaultOrder = 'XYZ';\n\n\tEuler.prototype = {\n\n\t\tconstructor: Euler,\n\n\t\tisEuler: true,\n\n\t\tget x () {\n\n\t\t\treturn this._x;\n\n\t\t},\n\n\t\tset x ( value ) {\n\n\t\t\tthis._x = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget y () {\n\n\t\t\treturn this._y;\n\n\t\t},\n\n\t\tset y ( value ) {\n\n\t\t\tthis._y = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget z () {\n\n\t\t\treturn this._z;\n\n\t\t},\n\n\t\tset z ( value ) {\n\n\t\t\tthis._z = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tget order () {\n\n\t\t\treturn this._order;\n\n\t\t},\n\n\t\tset order ( value ) {\n\n\t\t\tthis._order = value;\n\t\t\tthis.onChangeCallback();\n\n\t\t},\n\n\t\tset: function ( x, y, z, order ) {\n\n\t\t\tthis._x = x;\n\t\t\tthis._y = y;\n\t\t\tthis._z = z;\n\t\t\tthis._order = order || this._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this._x, this._y, this._z, this._order );\n\n\t\t},\n\n\t\tcopy: function ( euler ) {\n\n\t\t\tthis._x = euler._x;\n\t\t\tthis._y = euler._y;\n\t\t\tthis._z = euler._z;\n\t\t\tthis._order = euler._order;\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromRotationMatrix: function ( m, order, update ) {\n\n\t\t\tvar clamp = _Math.clamp;\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tvar te = m.elements;\n\t\t\tvar m11 = te[ 0 ], m12 = te[ 4 ], m13 = te[ 8 ];\n\t\t\tvar m21 = te[ 1 ], m22 = te[ 5 ], m23 = te[ 9 ];\n\t\t\tvar m31 = te[ 2 ], m32 = te[ 6 ], m33 = te[ 10 ];\n\n\t\t\torder = order || this._order;\n\n\t\t\tif ( order === 'XYZ' ) {\n\n\t\t\t\tthis._y = Math.asin( clamp( m13, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m13 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YXZ' ) {\n\n\t\t\t\tthis._x = Math.asin( - clamp( m23, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m23 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\t\t\t\t\tthis._z = 0;\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZXY' ) {\n\n\t\t\t\tthis._x = Math.asin( clamp( m32, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m32 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._y = Math.atan2( - m31, m33 );\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._y = 0;\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'ZYX' ) {\n\n\t\t\t\tthis._y = Math.asin( - clamp( m31, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m31 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m33 );\n\t\t\t\t\tthis._z = Math.atan2( m21, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._z = Math.atan2( - m12, m22 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'YZX' ) {\n\n\t\t\t\tthis._z = Math.asin( clamp( m21, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m21 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m22 );\n\t\t\t\t\tthis._y = Math.atan2( - m31, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = 0;\n\t\t\t\t\tthis._y = Math.atan2( m13, m33 );\n\n\t\t\t\t}\n\n\t\t\t} else if ( order === 'XZY' ) {\n\n\t\t\t\tthis._z = Math.asin( - clamp( m12, - 1, 1 ) );\n\n\t\t\t\tif ( Math.abs( m12 ) < 0.99999 ) {\n\n\t\t\t\t\tthis._x = Math.atan2( m32, m22 );\n\t\t\t\t\tthis._y = Math.atan2( m13, m11 );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis._x = Math.atan2( - m23, m33 );\n\t\t\t\t\tthis._y = 0;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Euler: .setFromRotationMatrix() given unsupported order: ' + order );\n\n\t\t\t}\n\n\t\t\tthis._order = order;\n\n\t\t\tif ( update !== false ) this.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromQuaternion: function () {\n\n\t\t\tvar matrix;\n\n\t\t\treturn function setFromQuaternion( q, order, update ) {\n\n\t\t\t\tif ( matrix === undefined ) matrix = new Matrix4();\n\n\t\t\t\tmatrix.makeRotationFromQuaternion( q );\n\n\t\t\t\treturn this.setFromRotationMatrix( matrix, order, update );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tsetFromVector3: function ( v, order ) {\n\n\t\t\treturn this.set( v.x, v.y, v.z, order || this._order );\n\n\t\t},\n\n\t\treorder: function () {\n\n\t\t\t// WARNING: this discards revolution information -bhouston\n\n\t\t\tvar q = new Quaternion();\n\n\t\t\treturn function reorder( newOrder ) {\n\n\t\t\t\tq.setFromEuler( this );\n\n\t\t\t\treturn this.setFromQuaternion( q, newOrder );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( euler ) {\n\n\t\t\treturn ( euler._x === this._x ) && ( euler._y === this._y ) && ( euler._z === this._z ) && ( euler._order === this._order );\n\n\t\t},\n\n\t\tfromArray: function ( array ) {\n\n\t\t\tthis._x = array[ 0 ];\n\t\t\tthis._y = array[ 1 ];\n\t\t\tthis._z = array[ 2 ];\n\t\t\tif ( array[ 3 ] !== undefined ) this._order = array[ 3 ];\n\n\t\t\tthis.onChangeCallback();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoArray: function ( array, offset ) {\n\n\t\t\tif ( array === undefined ) array = [];\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tarray[ offset ] = this._x;\n\t\t\tarray[ offset + 1 ] = this._y;\n\t\t\tarray[ offset + 2 ] = this._z;\n\t\t\tarray[ offset + 3 ] = this._order;\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\ttoVector3: function ( optionalResult ) {\n\n\t\t\tif ( optionalResult ) {\n\n\t\t\t\treturn optionalResult.set( this._x, this._y, this._z );\n\n\t\t\t} else {\n\n\t\t\t\treturn new Vector3( this._x, this._y, this._z );\n\n\t\t\t}\n\n\t\t},\n\n\t\tonChange: function ( callback ) {\n\n\t\t\tthis.onChangeCallback = callback;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tonChangeCallback: function () {}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Layers() {\n\n\t\tthis.mask = 1;\n\n\t}\n\n\tLayers.prototype = {\n\n\t\tconstructor: Layers,\n\n\t\tset: function ( channel ) {\n\n\t\t\tthis.mask = 1 << channel;\n\n\t\t},\n\n\t\tenable: function ( channel ) {\n\n\t\t\tthis.mask |= 1 << channel;\n\n\t\t},\n\n\t\ttoggle: function ( channel ) {\n\n\t\t\tthis.mask ^= 1 << channel;\n\n\t\t},\n\n\t\tdisable: function ( channel ) {\n\n\t\t\tthis.mask &= ~ ( 1 << channel );\n\n\t\t},\n\n\t\ttest: function ( layers ) {\n\n\t\t\treturn ( this.mask & layers.mask ) !== 0;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author elephantatwork / www.elephantatwork.ch\n\t */\n\n\tfunction Object3D() {\n\n\t\tObject.defineProperty( this, 'id', { value: Object3DIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Object3D';\n\n\t\tthis.parent = null;\n\t\tthis.children = [];\n\n\t\tthis.up = Object3D.DefaultUp.clone();\n\n\t\tvar position = new Vector3();\n\t\tvar rotation = new Euler();\n\t\tvar quaternion = new Quaternion();\n\t\tvar scale = new Vector3( 1, 1, 1 );\n\n\t\tfunction onRotationChange() {\n\n\t\t\tquaternion.setFromEuler( rotation, false );\n\n\t\t}\n\n\t\tfunction onQuaternionChange() {\n\n\t\t\trotation.setFromQuaternion( quaternion, undefined, false );\n\n\t\t}\n\n\t\trotation.onChange( onRotationChange );\n\t\tquaternion.onChange( onQuaternionChange );\n\n\t\tObject.defineProperties( this, {\n\t\t\tposition: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: position\n\t\t\t},\n\t\t\trotation: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: rotation\n\t\t\t},\n\t\t\tquaternion: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: quaternion\n\t\t\t},\n\t\t\tscale: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: scale\n\t\t\t},\n\t\t\tmodelViewMatrix: {\n\t\t\t\tvalue: new Matrix4()\n\t\t\t},\n\t\t\tnormalMatrix: {\n\t\t\t\tvalue: new Matrix3()\n\t\t\t}\n\t\t} );\n\n\t\tthis.matrix = new Matrix4();\n\t\tthis.matrixWorld = new Matrix4();\n\n\t\tthis.matrixAutoUpdate = Object3D.DefaultMatrixAutoUpdate;\n\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\tthis.layers = new Layers();\n\t\tthis.visible = true;\n\n\t\tthis.castShadow = false;\n\t\tthis.receiveShadow = false;\n\n\t\tthis.frustumCulled = true;\n\t\tthis.renderOrder = 0;\n\n\t\tthis.userData = {};\n\n\t\tthis.onBeforeRender = function(){}; \n\t\tthis.onAfterRender = function(){};\n\n\t}\n\n\tObject3D.DefaultUp = new Vector3( 0, 1, 0 );\n\tObject3D.DefaultMatrixAutoUpdate = true;\n\n\tObject.assign( Object3D.prototype, EventDispatcher.prototype, {\n\n\t\tisObject3D: true,\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tthis.matrix.multiplyMatrices( matrix, this.matrix );\n\n\t\t\tthis.matrix.decompose( this.position, this.quaternion, this.scale );\n\n\t\t},\n\n\t\tsetRotationFromAxisAngle: function ( axis, angle ) {\n\n\t\t\t// assumes axis is normalized\n\n\t\t\tthis.quaternion.setFromAxisAngle( axis, angle );\n\n\t\t},\n\n\t\tsetRotationFromEuler: function ( euler ) {\n\n\t\t\tthis.quaternion.setFromEuler( euler, true );\n\n\t\t},\n\n\t\tsetRotationFromMatrix: function ( m ) {\n\n\t\t\t// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)\n\n\t\t\tthis.quaternion.setFromRotationMatrix( m );\n\n\t\t},\n\n\t\tsetRotationFromQuaternion: function ( q ) {\n\n\t\t\t// assumes q is normalized\n\n\t\t\tthis.quaternion.copy( q );\n\n\t\t},\n\n\t\trotateOnAxis: function () {\n\n\t\t\t// rotate object on axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar q1 = new Quaternion();\n\n\t\t\treturn function rotateOnAxis( axis, angle ) {\n\n\t\t\t\tq1.setFromAxisAngle( axis, angle );\n\n\t\t\t\tthis.quaternion.multiply( q1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\treturn this.rotateOnAxis( v1, angle );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateOnAxis: function () {\n\n\t\t\t// translate object by distance along axis in object space\n\t\t\t// axis is assumed to be normalized\n\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function translateOnAxis( axis, distance ) {\n\n\t\t\t\tv1.copy( axis ).applyQuaternion( this.quaternion );\n\n\t\t\t\tthis.position.add( v1.multiplyScalar( distance ) );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateX: function () {\n\n\t\t\tvar v1 = new Vector3( 1, 0, 0 );\n\n\t\t\treturn function translateX( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateY: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 1, 0 );\n\n\t\t\treturn function translateY( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslateZ: function () {\n\n\t\t\tvar v1 = new Vector3( 0, 0, 1 );\n\n\t\t\treturn function translateZ( distance ) {\n\n\t\t\t\treturn this.translateOnAxis( v1, distance );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlocalToWorld: function ( vector ) {\n\n\t\t\treturn vector.applyMatrix4( this.matrixWorld );\n\n\t\t},\n\n\t\tworldToLocal: function () {\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function worldToLocal( vector ) {\n\n\t\t\t\treturn vector.applyMatrix4( m1.getInverse( this.matrixWorld ) );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\t// This routine does not support objects with rotated and/or translated parent(s)\n\n\t\t\tvar m1 = new Matrix4();\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tm1.lookAt( vector, this.position, this.up );\n\n\t\t\t\tthis.quaternion.setFromRotationMatrix( m1 );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tadd: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.add( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( object === this ) {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object can't be added as a child of itself.\", object );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tif ( (object && object.isObject3D) ) {\n\n\t\t\t\tif ( object.parent !== null ) {\n\n\t\t\t\t\tobject.parent.remove( object );\n\n\t\t\t\t}\n\n\t\t\t\tobject.parent = this;\n\t\t\t\tobject.dispatchEvent( { type: 'added' } );\n\n\t\t\t\tthis.children.push( object );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( \"THREE.Object3D.add: object not an instance of THREE.Object3D.\", object );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tremove: function ( object ) {\n\n\t\t\tif ( arguments.length > 1 ) {\n\n\t\t\t\tfor ( var i = 0; i < arguments.length; i ++ ) {\n\n\t\t\t\t\tthis.remove( arguments[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar index = this.children.indexOf( object );\n\n\t\t\tif ( index !== - 1 ) {\n\n\t\t\t\tobject.parent = null;\n\n\t\t\t\tobject.dispatchEvent( { type: 'removed' } );\n\n\t\t\t\tthis.children.splice( index, 1 );\n\n\t\t\t}\n\n\t\t},\n\n\t\tgetObjectById: function ( id ) {\n\n\t\t\treturn this.getObjectByProperty( 'id', id );\n\n\t\t},\n\n\t\tgetObjectByName: function ( name ) {\n\n\t\t\treturn this.getObjectByProperty( 'name', name );\n\n\t\t},\n\n\t\tgetObjectByProperty: function ( name, value ) {\n\n\t\t\tif ( this[ name ] === value ) return this;\n\n\t\t\tfor ( var i = 0, l = this.children.length; i < l; i ++ ) {\n\n\t\t\t\tvar child = this.children[ i ];\n\t\t\t\tvar object = child.getObjectByProperty( name, value );\n\n\t\t\t\tif ( object !== undefined ) {\n\n\t\t\t\t\treturn object;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn undefined;\n\n\t\t},\n\n\t\tgetWorldPosition: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\treturn result.setFromMatrixPosition( this.matrixWorld );\n\n\t\t},\n\n\t\tgetWorldQuaternion: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar scale = new Vector3();\n\n\t\t\treturn function getWorldQuaternion( optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Quaternion();\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, result, scale );\n\n\t\t\t\treturn result;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldRotation: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldRotation( optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Euler();\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn result.setFromQuaternion( quaternion, this.rotation.order, false );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldScale: function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldScale( optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, result );\n\n\t\t\t\treturn result;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tgetWorldDirection: function () {\n\n\t\t\tvar quaternion = new Quaternion();\n\n\t\t\treturn function getWorldDirection( optionalTarget ) {\n\n\t\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\t\treturn result.set( 0, 0, 1 ).applyQuaternion( quaternion );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\traycast: function () {},\n\n\t\ttraverse: function ( callback ) {\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverse( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseVisible: function ( callback ) {\n\n\t\t\tif ( this.visible === false ) return;\n\n\t\t\tcallback( this );\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].traverseVisible( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttraverseAncestors: function ( callback ) {\n\n\t\t\tvar parent = this.parent;\n\n\t\t\tif ( parent !== null ) {\n\n\t\t\t\tcallback( parent );\n\n\t\t\t\tparent.traverseAncestors( callback );\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrix: function () {\n\n\t\t\tthis.matrix.compose( this.position, this.quaternion, this.scale );\n\n\t\t\tthis.matrixWorldNeedsUpdate = true;\n\n\t\t},\n\n\t\tupdateMatrixWorld: function ( force ) {\n\n\t\t\tif ( this.matrixAutoUpdate === true ) this.updateMatrix();\n\n\t\t\tif ( this.matrixWorldNeedsUpdate === true || force === true ) {\n\n\t\t\t\tif ( this.parent === null ) {\n\n\t\t\t\t\tthis.matrixWorld.copy( this.matrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis.matrixWorld.multiplyMatrices( this.parent.matrixWorld, this.matrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.matrixWorldNeedsUpdate = false;\n\n\t\t\t\tforce = true;\n\n\t\t\t}\n\n\t\t\t// update children\n\n\t\t\tvar children = this.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tchildren[ i ].updateMatrixWorld( force );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\t// meta is '' when called from JSON.stringify\n\t\t\tvar isRootObject = ( meta === undefined || meta === '' );\n\n\t\t\tvar output = {};\n\n\t\t\t// meta is a hash used to collect geometries, materials.\n\t\t\t// not providing it implies that this is the root object\n\t\t\t// being serialized.\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\t// initialize meta obj\n\t\t\t\tmeta = {\n\t\t\t\t\tgeometries: {},\n\t\t\t\t\tmaterials: {},\n\t\t\t\t\ttextures: {},\n\t\t\t\t\timages: {}\n\t\t\t\t};\n\n\t\t\t\toutput.metadata = {\n\t\t\t\t\tversion: 4.4,\n\t\t\t\t\ttype: 'Object',\n\t\t\t\t\tgenerator: 'Object3D.toJSON'\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\t// standard Object3D serialization\n\n\t\t\tvar object = {};\n\n\t\t\tobject.uuid = this.uuid;\n\t\t\tobject.type = this.type;\n\n\t\t\tif ( this.name !== '' ) object.name = this.name;\n\t\t\tif ( JSON.stringify( this.userData ) !== '{}' ) object.userData = this.userData;\n\t\t\tif ( this.castShadow === true ) object.castShadow = true;\n\t\t\tif ( this.receiveShadow === true ) object.receiveShadow = true;\n\t\t\tif ( this.visible === false ) object.visible = false;\n\n\t\t\tobject.matrix = this.matrix.toArray();\n\n\t\t\t//\n\n\t\t\tif ( this.geometry !== undefined ) {\n\n\t\t\t\tif ( meta.geometries[ this.geometry.uuid ] === undefined ) {\n\n\t\t\t\t\tmeta.geometries[ this.geometry.uuid ] = this.geometry.toJSON( meta );\n\n\t\t\t\t}\n\n\t\t\t\tobject.geometry = this.geometry.uuid;\n\n\t\t\t}\n\n\t\t\tif ( this.material !== undefined ) {\n\n\t\t\t\tif ( meta.materials[ this.material.uuid ] === undefined ) {\n\n\t\t\t\t\tmeta.materials[ this.material.uuid ] = this.material.toJSON( meta );\n\n\t\t\t\t}\n\n\t\t\t\tobject.material = this.material.uuid;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( this.children.length > 0 ) {\n\n\t\t\t\tobject.children = [];\n\n\t\t\t\tfor ( var i = 0; i < this.children.length; i ++ ) {\n\n\t\t\t\t\tobject.children.push( this.children[ i ].toJSON( meta ).object );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( isRootObject ) {\n\n\t\t\t\tvar geometries = extractFromCache( meta.geometries );\n\t\t\t\tvar materials = extractFromCache( meta.materials );\n\t\t\t\tvar textures = extractFromCache( meta.textures );\n\t\t\t\tvar images = extractFromCache( meta.images );\n\n\t\t\t\tif ( geometries.length > 0 ) output.geometries = geometries;\n\t\t\t\tif ( materials.length > 0 ) output.materials = materials;\n\t\t\t\tif ( textures.length > 0 ) output.textures = textures;\n\t\t\t\tif ( images.length > 0 ) output.images = images;\n\n\t\t\t}\n\n\t\t\toutput.object = object;\n\n\t\t\treturn output;\n\n\t\t\t// extract data from the cache hash\n\t\t\t// remove metadata on each item\n\t\t\t// and return as array\n\t\t\tfunction extractFromCache( cache ) {\n\n\t\t\t\tvar values = [];\n\t\t\t\tfor ( var key in cache ) {\n\n\t\t\t\t\tvar data = cache[ key ];\n\t\t\t\t\tdelete data.metadata;\n\t\t\t\t\tvalues.push( data );\n\n\t\t\t\t}\n\t\t\t\treturn values;\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function ( recursive ) {\n\n\t\t\treturn new this.constructor().copy( this, recursive );\n\n\t\t},\n\n\t\tcopy: function ( source, recursive ) {\n\n\t\t\tif ( recursive === undefined ) recursive = true;\n\n\t\t\tthis.name = source.name;\n\n\t\t\tthis.up.copy( source.up );\n\n\t\t\tthis.position.copy( source.position );\n\t\t\tthis.quaternion.copy( source.quaternion );\n\t\t\tthis.scale.copy( source.scale );\n\n\t\t\tthis.matrix.copy( source.matrix );\n\t\t\tthis.matrixWorld.copy( source.matrixWorld );\n\n\t\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\t\t\tthis.matrixWorldNeedsUpdate = source.matrixWorldNeedsUpdate;\n\n\t\t\tthis.visible = source.visible;\n\n\t\t\tthis.castShadow = source.castShadow;\n\t\t\tthis.receiveShadow = source.receiveShadow;\n\n\t\t\tthis.frustumCulled = source.frustumCulled;\n\t\t\tthis.renderOrder = source.renderOrder;\n\n\t\t\tthis.userData = JSON.parse( JSON.stringify( source.userData ) );\n\n\t\t\tif ( recursive === true ) {\n\n\t\t\t\tfor ( var i = 0; i < source.children.length; i ++ ) {\n\n\t\t\t\t\tvar child = source.children[ i ];\n\t\t\t\t\tthis.add( child.clone() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\tvar count$2 = 0;\n\tfunction Object3DIdCount() { return count$2++; }\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Line3( start, end ) {\n\n\t\tthis.start = ( start !== undefined ) ? start : new Vector3();\n\t\tthis.end = ( end !== undefined ) ? end : new Vector3();\n\n\t}\n\n\tLine3.prototype = {\n\n\t\tconstructor: Line3,\n\n\t\tset: function ( start, end ) {\n\n\t\t\tthis.start.copy( start );\n\t\t\tthis.end.copy( end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( line ) {\n\n\t\t\tthis.start.copy( line.start );\n\t\t\tthis.end.copy( line.end );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetCenter: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.addVectors( this.start, this.end ).multiplyScalar( 0.5 );\n\n\t\t},\n\n\t\tdelta: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.subVectors( this.end, this.start );\n\n\t\t},\n\n\t\tdistanceSq: function () {\n\n\t\t\treturn this.start.distanceToSquared( this.end );\n\n\t\t},\n\n\t\tdistance: function () {\n\n\t\t\treturn this.start.distanceTo( this.end );\n\n\t\t},\n\n\t\tat: function ( t, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\treturn this.delta( result ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tclosestPointToPointParameter: function () {\n\n\t\t\tvar startP = new Vector3();\n\t\t\tvar startEnd = new Vector3();\n\n\t\t\treturn function closestPointToPointParameter( point, clampToLine ) {\n\n\t\t\t\tstartP.subVectors( point, this.start );\n\t\t\t\tstartEnd.subVectors( this.end, this.start );\n\n\t\t\t\tvar startEnd2 = startEnd.dot( startEnd );\n\t\t\t\tvar startEnd_startP = startEnd.dot( startP );\n\n\t\t\t\tvar t = startEnd_startP / startEnd2;\n\n\t\t\t\tif ( clampToLine ) {\n\n\t\t\t\t\tt = _Math.clamp( t, 0, 1 );\n\n\t\t\t\t}\n\n\t\t\t\treturn t;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tclosestPointToPoint: function ( point, clampToLine, optionalTarget ) {\n\n\t\t\tvar t = this.closestPointToPointParameter( point, clampToLine );\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\treturn this.delta( result ).multiplyScalar( t ).add( this.start );\n\n\t\t},\n\n\t\tapplyMatrix4: function ( matrix ) {\n\n\t\t\tthis.start.applyMatrix4( matrix );\n\t\t\tthis.end.applyMatrix4( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tequals: function ( line ) {\n\n\t\t\treturn line.start.equals( this.start ) && line.end.equals( this.end );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Triangle( a, b, c ) {\n\n\t\tthis.a = ( a !== undefined ) ? a : new Vector3();\n\t\tthis.b = ( b !== undefined ) ? b : new Vector3();\n\t\tthis.c = ( c !== undefined ) ? c : new Vector3();\n\n\t}\n\n\tTriangle.normal = function () {\n\n\t\tvar v0 = new Vector3();\n\n\t\treturn function normal( a, b, c, optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\tresult.subVectors( c, b );\n\t\t\tv0.subVectors( a, b );\n\t\t\tresult.cross( v0 );\n\n\t\t\tvar resultLengthSq = result.lengthSq();\n\t\t\tif ( resultLengthSq > 0 ) {\n\n\t\t\t\treturn result.multiplyScalar( 1 / Math.sqrt( resultLengthSq ) );\n\n\t\t\t}\n\n\t\t\treturn result.set( 0, 0, 0 );\n\n\t\t};\n\n\t}();\n\n\t// static/instance method to calculate barycentric coordinates\n\t// based on: http://www.blackpawn.com/texts/pointinpoly/default.html\n\tTriangle.barycoordFromPoint = function () {\n\n\t\tvar v0 = new Vector3();\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\n\t\treturn function barycoordFromPoint( point, a, b, c, optionalTarget ) {\n\n\t\t\tv0.subVectors( c, a );\n\t\t\tv1.subVectors( b, a );\n\t\t\tv2.subVectors( point, a );\n\n\t\t\tvar dot00 = v0.dot( v0 );\n\t\t\tvar dot01 = v0.dot( v1 );\n\t\t\tvar dot02 = v0.dot( v2 );\n\t\t\tvar dot11 = v1.dot( v1 );\n\t\t\tvar dot12 = v1.dot( v2 );\n\n\t\t\tvar denom = ( dot00 * dot11 - dot01 * dot01 );\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\t// collinear or singular triangle\n\t\t\tif ( denom === 0 ) {\n\n\t\t\t\t// arbitrary location outside of triangle?\n\t\t\t\t// not sure if this is the best idea, maybe should be returning undefined\n\t\t\t\treturn result.set( - 2, - 1, - 1 );\n\n\t\t\t}\n\n\t\t\tvar invDenom = 1 / denom;\n\t\t\tvar u = ( dot11 * dot02 - dot01 * dot12 ) * invDenom;\n\t\t\tvar v = ( dot00 * dot12 - dot01 * dot02 ) * invDenom;\n\n\t\t\t// barycentric coordinates must always sum to 1\n\t\t\treturn result.set( 1 - u - v, v, u );\n\n\t\t};\n\n\t}();\n\n\tTriangle.containsPoint = function () {\n\n\t\tvar v1 = new Vector3();\n\n\t\treturn function containsPoint( point, a, b, c ) {\n\n\t\t\tvar result = Triangle.barycoordFromPoint( point, a, b, c, v1 );\n\n\t\t\treturn ( result.x >= 0 ) && ( result.y >= 0 ) && ( ( result.x + result.y ) <= 1 );\n\n\t\t};\n\n\t}();\n\n\tTriangle.prototype = {\n\n\t\tconstructor: Triangle,\n\n\t\tset: function ( a, b, c ) {\n\n\t\t\tthis.a.copy( a );\n\t\t\tthis.b.copy( b );\n\t\t\tthis.c.copy( c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromPointsAndIndices: function ( points, i0, i1, i2 ) {\n\n\t\t\tthis.a.copy( points[ i0 ] );\n\t\t\tthis.b.copy( points[ i1 ] );\n\t\t\tthis.c.copy( points[ i2 ] );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( triangle ) {\n\n\t\t\tthis.a.copy( triangle.a );\n\t\t\tthis.b.copy( triangle.b );\n\t\t\tthis.c.copy( triangle.c );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tarea: function () {\n\n\t\t\tvar v0 = new Vector3();\n\t\t\tvar v1 = new Vector3();\n\n\t\t\treturn function area() {\n\n\t\t\t\tv0.subVectors( this.c, this.b );\n\t\t\t\tv1.subVectors( this.a, this.b );\n\n\t\t\t\treturn v0.cross( v1 ).length() * 0.5;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tmidpoint: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\treturn result.addVectors( this.a, this.b ).add( this.c ).multiplyScalar( 1 / 3 );\n\n\t\t},\n\n\t\tnormal: function ( optionalTarget ) {\n\n\t\t\treturn Triangle.normal( this.a, this.b, this.c, optionalTarget );\n\n\t\t},\n\n\t\tplane: function ( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Plane();\n\n\t\t\treturn result.setFromCoplanarPoints( this.a, this.b, this.c );\n\n\t\t},\n\n\t\tbarycoordFromPoint: function ( point, optionalTarget ) {\n\n\t\t\treturn Triangle.barycoordFromPoint( point, this.a, this.b, this.c, optionalTarget );\n\n\t\t},\n\n\t\tcontainsPoint: function ( point ) {\n\n\t\t\treturn Triangle.containsPoint( point, this.a, this.b, this.c );\n\n\t\t},\n\n\t\tclosestPointToPoint: function () {\n\n\t\t\tvar plane, edgeList, projectedPoint, closestPoint;\n\n\t\t\treturn function closestPointToPoint( point, optionalTarget ) {\n\n\t\t\t\tif ( plane === undefined ) {\n\n\t\t\t\t\tplane = new Plane();\n\t\t\t\t\tedgeList = [ new Line3(), new Line3(), new Line3() ];\n\t\t\t\t\tprojectedPoint = new Vector3();\n\t\t\t\t\tclosestPoint = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tvar result = optionalTarget || new Vector3();\n\t\t\t\tvar minDistance = Infinity;\n\n\t\t\t\t// project the point onto the plane of the triangle\n\n\t\t\t\tplane.setFromCoplanarPoints( this.a, this.b, this.c );\n\t\t\t\tplane.projectPoint( point, projectedPoint );\n\n\t\t\t\t// check if the projection lies within the triangle\n\n\t\t\t\tif( this.containsPoint( projectedPoint ) === true ) {\n\n\t\t\t\t\t// if so, this is the closest point\n\n\t\t\t\t\tresult.copy( projectedPoint );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// if not, the point falls outside the triangle. the result is the closest point to the triangle's edges or vertices\n\n\t\t\t\t\tedgeList[ 0 ].set( this.a, this.b );\n\t\t\t\t\tedgeList[ 1 ].set( this.b, this.c );\n\t\t\t\t\tedgeList[ 2 ].set( this.c, this.a );\n\n\t\t\t\t\tfor( var i = 0; i < edgeList.length; i ++ ) {\n\n\t\t\t\t\t\tedgeList[ i ].closestPointToPoint( projectedPoint, true, closestPoint );\n\n\t\t\t\t\t\tvar distance = projectedPoint.distanceToSquared( closestPoint );\n\n\t\t\t\t\t\tif( distance < minDistance ) {\n\n\t\t\t\t\t\t\tminDistance = distance;\n\n\t\t\t\t\t\t\tresult.copy( closestPoint );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn result;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tequals: function ( triangle ) {\n\n\t\t\treturn triangle.a.equals( this.a ) && triangle.b.equals( this.b ) && triangle.c.equals( this.c );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Face3( a, b, c, normal, color, materialIndex ) {\n\n\t\tthis.a = a;\n\t\tthis.b = b;\n\t\tthis.c = c;\n\n\t\tthis.normal = (normal && normal.isVector3) ? normal : new Vector3();\n\t\tthis.vertexNormals = Array.isArray( normal ) ? normal : [];\n\n\t\tthis.color = (color && color.isColor) ? color : new Color();\n\t\tthis.vertexColors = Array.isArray( color ) ? color : [];\n\n\t\tthis.materialIndex = materialIndex !== undefined ? materialIndex : 0;\n\n\t}\n\n\tFace3.prototype = {\n\n\t\tconstructor: Face3,\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.a = source.a;\n\t\t\tthis.b = source.b;\n\t\t\tthis.c = source.c;\n\n\t\t\tthis.normal.copy( source.normal );\n\t\t\tthis.color.copy( source.color );\n\n\t\t\tthis.materialIndex = source.materialIndex;\n\n\t\t\tfor ( var i = 0, il = source.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexNormals[ i ] = source.vertexNormals[ i ].clone();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = source.vertexColors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertexColors[ i ] = source.vertexColors[ i ].clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * shading: THREE.SmoothShading,\n\t * depthTest: ,\n\t * depthWrite: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: \n\t * }\n\t */\n\n\tfunction MeshBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // emissive\n\n\t\tthis.map = null;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshBasicMaterial.prototype = Object.create( Material.prototype );\n\tMeshBasicMaterial.prototype.constructor = MeshBasicMaterial;\n\n\tMeshBasicMaterial.prototype.isMeshBasicMaterial = true;\n\n\tMeshBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferAttribute( array, itemSize, normalized ) {\n\n\t\tif ( Array.isArray( array ) ) {\n\n\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t}\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.array = array;\n\t\tthis.itemSize = itemSize;\n\t\tthis.count = array !== undefined ? array.length / itemSize : 0;\n\t\tthis.normalized = normalized === true;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tBufferAttribute.prototype = {\n\n\t\tconstructor: BufferAttribute,\n\n\t\tisBufferAttribute: true,\n\n\t\tset needsUpdate( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.itemSize : 0;\n\t\t\tthis.array = array;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.itemSize = source.itemSize;\n\t\t\tthis.count = source.count;\n\t\t\tthis.normalized = source.normalized;\n\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.itemSize;\n\t\t\tindex2 *= attribute.itemSize;\n\n\t\t\tfor ( var i = 0, l = this.itemSize; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyArray: function ( array ) {\n\n\t\t\tthis.array.set( array );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyColorsArray: function ( colors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = colors.length; i < l; i ++ ) {\n\n\t\t\t\tvar color = colors[ i ];\n\n\t\t\t\tif ( color === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyColorsArray(): color is undefined', i );\n\t\t\t\t\tcolor = new Color();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = color.r;\n\t\t\t\tarray[ offset ++ ] = color.g;\n\t\t\t\tarray[ offset ++ ] = color.b;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyIndicesArray: function ( indices ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = indices.length; i < l; i ++ ) {\n\n\t\t\t\tvar index = indices[ i ];\n\n\t\t\t\tarray[ offset ++ ] = index.a;\n\t\t\t\tarray[ offset ++ ] = index.b;\n\t\t\t\tarray[ offset ++ ] = index.c;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector2sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector2sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector2();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector3sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector3sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector3();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyVector4sArray: function ( vectors ) {\n\n\t\t\tvar array = this.array, offset = 0;\n\n\t\t\tfor ( var i = 0, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tvar vector = vectors[ i ];\n\n\t\t\t\tif ( vector === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.BufferAttribute.copyVector4sArray(): vector is undefined', i );\n\t\t\t\t\tvector = new Vector4();\n\n\t\t\t\t}\n\n\t\t\t\tarray[ offset ++ ] = vector.x;\n\t\t\t\tarray[ offset ++ ] = vector.y;\n\t\t\t\tarray[ offset ++ ] = vector.z;\n\t\t\t\tarray[ offset ++ ] = vector.w;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize ];\n\n\t\t},\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.array[ index * this.itemSize ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 1 ];\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.array[ index * this.itemSize + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 2 ];\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.array[ index * this.itemSize + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.array[ index * this.itemSize + 3 ];\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.array[ index * this.itemSize + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex *= this.itemSize;\n\n\t\t\tthis.array[ index + 0 ] = x;\n\t\t\tthis.array[ index + 1 ] = y;\n\t\t\tthis.array[ index + 2 ] = z;\n\t\t\tthis.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t};\n\n\t//\n\n\tfunction Int8Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Int8Array( array ), itemSize );\n\n\t}\n\n\tfunction Uint8Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Uint8Array( array ), itemSize );\n\n\t}\n\n\tfunction Uint8ClampedAttribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Uint8ClampedArray( array ), itemSize );\n\n\t}\n\n\tfunction Int16Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Int16Array( array ), itemSize );\n\n\t}\n\n\tfunction Uint16Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Uint16Array( array ), itemSize );\n\n\t}\n\n\tfunction Int32Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Int32Array( array ), itemSize );\n\n\t}\n\n\tfunction Uint32Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Uint32Array( array ), itemSize );\n\n\t}\n\n\tfunction Float32Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Float32Array( array ), itemSize );\n\n\t}\n\n\tfunction Float64Attribute( array, itemSize ) {\n\n\t\treturn new BufferAttribute( new Float64Array( array ), itemSize );\n\n\t}\n\n\t// Deprecated\n\n\tfunction DynamicBufferAttribute( array, itemSize ) {\n\n\t\tconsole.warn( 'THREE.DynamicBufferAttribute has been removed. Use new THREE.BufferAttribute().setDynamic( true ) instead.' );\n\t\treturn new BufferAttribute( array, itemSize ).setDynamic( true );\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author kile / http://kile.stravaganza.org/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author bhouston / http://clara.io\n\t */\n\n\tfunction Geometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: GeometryIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'Geometry';\n\n\t\tthis.vertices = [];\n\t\tthis.colors = [];\n\t\tthis.faces = [];\n\t\tthis.faceVertexUvs = [ [] ];\n\n\t\tthis.morphTargets = [];\n\t\tthis.morphNormals = [];\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\tthis.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.elementsNeedUpdate = false;\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.lineDistancesNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tObject.assign( Geometry.prototype, EventDispatcher.prototype, {\n\n\t\tisGeometry: true,\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\tfor ( var i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertex.applyMatrix4( matrix );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\t\t\t\tface.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tface.vertexNormals[ j ].applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\tthis.verticesNeedUpdate = true;\n\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1;\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1;\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj;\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tif ( obj === undefined ) obj = new Object3D();\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tfromBufferGeometry: function ( geometry ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar indices = geometry.index !== null ? geometry.index.array : undefined;\n\t\t\tvar attributes = geometry.attributes;\n\n\t\t\tvar positions = attributes.position.array;\n\t\t\tvar normals = attributes.normal !== undefined ? attributes.normal.array : undefined;\n\t\t\tvar colors = attributes.color !== undefined ? attributes.color.array : undefined;\n\t\t\tvar uvs = attributes.uv !== undefined ? attributes.uv.array : undefined;\n\t\t\tvar uvs2 = attributes.uv2 !== undefined ? attributes.uv2.array : undefined;\n\n\t\t\tif ( uvs2 !== undefined ) this.faceVertexUvs[ 1 ] = [];\n\n\t\t\tvar tempNormals = [];\n\t\t\tvar tempUVs = [];\n\t\t\tvar tempUVs2 = [];\n\n\t\t\tfor ( var i = 0, j = 0; i < positions.length; i += 3, j += 2 ) {\n\n\t\t\t\tscope.vertices.push( new Vector3( positions[ i ], positions[ i + 1 ], positions[ i + 2 ] ) );\n\n\t\t\t\tif ( normals !== undefined ) {\n\n\t\t\t\t\ttempNormals.push( new Vector3( normals[ i ], normals[ i + 1 ], normals[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( colors !== undefined ) {\n\n\t\t\t\t\tscope.colors.push( new Color( colors[ i ], colors[ i + 1 ], colors[ i + 2 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\ttempUVs.push( new Vector2( uvs[ j ], uvs[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\ttempUVs2.push( new Vector2( uvs2[ j ], uvs2[ j + 1 ] ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction addFace( a, b, c, materialIndex ) {\n\n\t\t\t\tvar vertexNormals = normals !== undefined ? [ tempNormals[ a ].clone(), tempNormals[ b ].clone(), tempNormals[ c ].clone() ] : [];\n\t\t\t\tvar vertexColors = colors !== undefined ? [ scope.colors[ a ].clone(), scope.colors[ b ].clone(), scope.colors[ c ].clone() ] : [];\n\n\t\t\t\tvar face = new Face3( a, b, c, vertexNormals, vertexColors, materialIndex );\n\n\t\t\t\tscope.faces.push( face );\n\n\t\t\t\tif ( uvs !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 0 ].push( [ tempUVs[ a ].clone(), tempUVs[ b ].clone(), tempUVs[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( uvs2 !== undefined ) {\n\n\t\t\t\t\tscope.faceVertexUvs[ 1 ].push( [ tempUVs2[ a ].clone(), tempUVs2[ b ].clone(), tempUVs2[ c ].clone() ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( indices !== undefined ) {\n\n\t\t\t\tvar groups = geometry.groups;\n\n\t\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\t\tfor ( var i = 0; i < groups.length; i ++ ) {\n\n\t\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\t\tvar start = group.start;\n\t\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\t\tfor ( var j = start, jl = start + count; j < jl; j += 3 ) {\n\n\t\t\t\t\t\t\taddFace( indices[ j ], indices[ j + 1 ], indices[ j + 2 ], group.materialIndex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t\t\taddFace( indices[ i ], indices[ i + 1 ], indices[ i + 2 ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tfor ( var i = 0; i < positions.length / 3; i += 3 ) {\n\n\t\t\t\t\taddFace( i, i + 1, i + 2 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcenter: function () {\n\n\t\t\tthis.computeBoundingBox();\n\n\t\t\tvar offset = this.boundingBox.getCenter().negate();\n\n\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\treturn offset;\n\n\t\t},\n\n\t\tnormalize: function () {\n\n\t\t\tthis.computeBoundingSphere();\n\n\t\t\tvar center = this.boundingSphere.center;\n\t\t\tvar radius = this.boundingSphere.radius;\n\n\t\t\tvar s = radius === 0 ? 1 : 1.0 / radius;\n\n\t\t\tvar matrix = new Matrix4();\n\t\t\tmatrix.set(\n\t\t\t\ts, 0, 0, - s * center.x,\n\t\t\t\t0, s, 0, - s * center.y,\n\t\t\t\t0, 0, s, - s * center.z,\n\t\t\t\t0, 0, 0, 1\n\t\t\t);\n\n\t\t\tthis.applyMatrix( matrix );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\tfor ( var f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tvar face = this.faces[ f ];\n\n\t\t\t\tvar vA = this.vertices[ face.a ];\n\t\t\t\tvar vB = this.vertices[ face.b ];\n\t\t\t\tvar vC = this.vertices[ face.c ];\n\n\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\tcb.cross( ab );\n\n\t\t\t\tcb.normalize();\n\n\t\t\t\tface.normal.copy( cb );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeVertexNormals: function ( areaWeighted ) {\n\n\t\t\tif ( areaWeighted === undefined ) areaWeighted = true;\n\n\t\t\tvar v, vl, f, fl, face, vertices;\n\n\t\t\tvertices = new Array( this.vertices.length );\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ] = new Vector3();\n\n\t\t\t}\n\n\t\t\tif ( areaWeighted ) {\n\n\t\t\t\t// vertex normals weighted by triangle areas\n\t\t\t\t// http://www.iquilezles.org/www/articles/normals/normals.htm\n\n\t\t\t\tvar vA, vB, vC;\n\t\t\t\tvar cb = new Vector3(), ab = new Vector3();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvA = this.vertices[ face.a ];\n\t\t\t\t\tvB = this.vertices[ face.b ];\n\t\t\t\t\tvC = this.vertices[ face.c ];\n\n\t\t\t\t\tcb.subVectors( vC, vB );\n\t\t\t\t\tab.subVectors( vA, vB );\n\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\tvertices[ face.a ].add( cb );\n\t\t\t\t\tvertices[ face.b ].add( cb );\n\t\t\t\t\tvertices[ face.c ].add( cb );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tthis.computeFaceNormals();\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tvertices[ face.a ].add( face.normal );\n\t\t\t\t\tvertices[ face.b ].add( face.normal );\n\t\t\t\t\tvertices[ face.c ].add( face.normal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( v = 0, vl = this.vertices.length; v < vl; v ++ ) {\n\n\t\t\t\tvertices[ v ].normalize();\n\n\t\t\t}\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( vertices[ face.a ] );\n\t\t\t\t\tvertexNormals[ 1 ].copy( vertices[ face.b ] );\n\t\t\t\t\tvertexNormals[ 2 ].copy( vertices[ face.c ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = vertices[ face.a ].clone();\n\t\t\t\t\tvertexNormals[ 1 ] = vertices[ face.b ].clone();\n\t\t\t\t\tvertexNormals[ 2 ] = vertices[ face.c ].clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeFlatVertexNormals: function () {\n\n\t\t\tvar f, fl, face;\n\n\t\t\tthis.computeFaceNormals();\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tvertexNormals[ 0 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 1 ].copy( face.normal );\n\t\t\t\t\tvertexNormals[ 2 ].copy( face.normal );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvertexNormals[ 0 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 1 ] = face.normal.clone();\n\t\t\t\t\tvertexNormals[ 2 ] = face.normal.clone();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( this.faces.length > 0 ) {\n\n\t\t\t\tthis.normalsNeedUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeMorphNormals: function () {\n\n\t\t\tvar i, il, f, fl, face;\n\n\t\t\t// save original normals\n\t\t\t// - create temp variables on first access\n\t\t\t// otherwise just copy (for faster repeated calls)\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tif ( ! face.__originalFaceNormal ) {\n\n\t\t\t\t\tface.__originalFaceNormal = face.normal.clone();\n\n\t\t\t\t} else {\n\n\t\t\t\t\tface.__originalFaceNormal.copy( face.normal );\n\n\t\t\t\t}\n\n\t\t\t\tif ( ! face.__originalVertexNormals ) face.__originalVertexNormals = [];\n\n\t\t\t\tfor ( i = 0, il = face.vertexNormals.length; i < il; i ++ ) {\n\n\t\t\t\t\tif ( ! face.__originalVertexNormals[ i ] ) {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ] = face.vertexNormals[ i ].clone();\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface.__originalVertexNormals[ i ].copy( face.vertexNormals[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// use temp geometry to compute face and vertex normals for each morph\n\n\t\t\tvar tmpGeo = new Geometry();\n\t\t\ttmpGeo.faces = this.faces;\n\n\t\t\tfor ( i = 0, il = this.morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\t// create on first access\n\n\t\t\t\tif ( ! this.morphNormals[ i ] ) {\n\n\t\t\t\t\tthis.morphNormals[ i ] = {};\n\t\t\t\t\tthis.morphNormals[ i ].faceNormals = [];\n\t\t\t\t\tthis.morphNormals[ i ].vertexNormals = [];\n\n\t\t\t\t\tvar dstNormalsFace = this.morphNormals[ i ].faceNormals;\n\t\t\t\t\tvar dstNormalsVertex = this.morphNormals[ i ].vertexNormals;\n\n\t\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tfaceNormal = new Vector3();\n\t\t\t\t\t\tvertexNormals = { a: new Vector3(), b: new Vector3(), c: new Vector3() };\n\n\t\t\t\t\t\tdstNormalsFace.push( faceNormal );\n\t\t\t\t\t\tdstNormalsVertex.push( vertexNormals );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar morphNormals = this.morphNormals[ i ];\n\n\t\t\t\t// set vertices to morph target\n\n\t\t\t\ttmpGeo.vertices = this.morphTargets[ i ].vertices;\n\n\t\t\t\t// compute morph normals\n\n\t\t\t\ttmpGeo.computeFaceNormals();\n\t\t\t\ttmpGeo.computeVertexNormals();\n\n\t\t\t\t// store morph normals\n\n\t\t\t\tvar faceNormal, vertexNormals;\n\n\t\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\t\tfaceNormal = morphNormals.faceNormals[ f ];\n\t\t\t\t\tvertexNormals = morphNormals.vertexNormals[ f ];\n\n\t\t\t\t\tfaceNormal.copy( face.normal );\n\n\t\t\t\t\tvertexNormals.a.copy( face.vertexNormals[ 0 ] );\n\t\t\t\t\tvertexNormals.b.copy( face.vertexNormals[ 1 ] );\n\t\t\t\t\tvertexNormals.c.copy( face.vertexNormals[ 2 ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// restore original normals\n\n\t\t\tfor ( f = 0, fl = this.faces.length; f < fl; f ++ ) {\n\n\t\t\t\tface = this.faces[ f ];\n\n\t\t\t\tface.normal = face.__originalFaceNormal;\n\t\t\t\tface.vertexNormals = face.__originalVertexNormals;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeTangents: function () {\n\n\t\t\tconsole.warn( 'THREE.Geometry: .computeTangents() has been removed.' );\n\n\t\t},\n\n\t\tcomputeLineDistances: function () {\n\n\t\t\tvar d = 0;\n\t\t\tvar vertices = this.vertices;\n\n\t\t\tfor ( var i = 0, il = vertices.length; i < il; i ++ ) {\n\n\t\t\t\tif ( i > 0 ) {\n\n\t\t\t\t\td += vertices[ i ].distanceTo( vertices[ i - 1 ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.lineDistances[ i ] = d;\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tthis.boundingBox.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t}\n\n\t\t\tthis.boundingSphere.setFromPoints( this.vertices );\n\n\t\t},\n\n\t\tmerge: function ( geometry, matrix, materialIndexOffset ) {\n\n\t\t\tif ( (geometry && geometry.isGeometry) === false ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar normalMatrix,\n\t\t\tvertexOffset = this.vertices.length,\n\t\t\tvertices1 = this.vertices,\n\t\t\tvertices2 = geometry.vertices,\n\t\t\tfaces1 = this.faces,\n\t\t\tfaces2 = geometry.faces,\n\t\t\tuvs1 = this.faceVertexUvs[ 0 ],\n\t\t\tuvs2 = geometry.faceVertexUvs[ 0 ],\n\t\t\tcolors1 = this.colors,\n\t\t\tcolors2 = geometry.colors;\n\n\t\t\tif ( materialIndexOffset === undefined ) materialIndexOffset = 0;\n\n\t\t\tif ( matrix !== undefined ) {\n\n\t\t\t\tnormalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t}\n\n\t\t\t// vertices\n\n\t\t\tfor ( var i = 0, il = vertices2.length; i < il; i ++ ) {\n\n\t\t\t\tvar vertex = vertices2[ i ];\n\n\t\t\t\tvar vertexCopy = vertex.clone();\n\n\t\t\t\tif ( matrix !== undefined ) vertexCopy.applyMatrix4( matrix );\n\n\t\t\t\tvertices1.push( vertexCopy );\n\n\t\t\t}\n\n\t\t\t// colors\n\n\t\t\tfor ( var i = 0, il = colors2.length; i < il; i ++ ) {\n\n\t\t\t\tcolors1.push( colors2[ i ].clone() );\n\n\t\t\t}\n\n\t\t\t// faces\n\n\t\t\tfor ( i = 0, il = faces2.length; i < il; i ++ ) {\n\n\t\t\t\tvar face = faces2[ i ], faceCopy, normal, color,\n\t\t\t\tfaceVertexNormals = face.vertexNormals,\n\t\t\t\tfaceVertexColors = face.vertexColors;\n\n\t\t\t\tfaceCopy = new Face3( face.a + vertexOffset, face.b + vertexOffset, face.c + vertexOffset );\n\t\t\t\tfaceCopy.normal.copy( face.normal );\n\n\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\tfaceCopy.normal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\tnormal = faceVertexNormals[ j ].clone();\n\n\t\t\t\t\tif ( normalMatrix !== undefined ) {\n\n\t\t\t\t\t\tnormal.applyMatrix3( normalMatrix ).normalize();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfaceCopy.vertexNormals.push( normal );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.color.copy( face.color );\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexColors.length; j < jl; j ++ ) {\n\n\t\t\t\t\tcolor = faceVertexColors[ j ];\n\t\t\t\t\tfaceCopy.vertexColors.push( color.clone() );\n\n\t\t\t\t}\n\n\t\t\t\tfaceCopy.materialIndex = face.materialIndex + materialIndexOffset;\n\n\t\t\t\tfaces1.push( faceCopy );\n\n\t\t\t}\n\n\t\t\t// uvs\n\n\t\t\tfor ( i = 0, il = uvs2.length; i < il; i ++ ) {\n\n\t\t\t\tvar uv = uvs2[ i ], uvCopy = [];\n\n\t\t\t\tif ( uv === undefined ) {\n\n\t\t\t\t\tcontinue;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = uv.length; j < jl; j ++ ) {\n\n\t\t\t\t\tuvCopy.push( uv[ j ].clone() );\n\n\t\t\t\t}\n\n\t\t\t\tuvs1.push( uvCopy );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmergeMesh: function ( mesh ) {\n\n\t\t\tif ( (mesh && mesh.isMesh) === false ) {\n\n\t\t\t\tconsole.error( 'THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.', mesh );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tmesh.matrixAutoUpdate && mesh.updateMatrix();\n\n\t\t\tthis.merge( mesh.geometry, mesh.matrix );\n\n\t\t},\n\n\t\t/*\n\t\t * Checks for duplicate vertices with hashmap.\n\t\t * Duplicated vertices are removed\n\t\t * and faces' vertices are updated.\n\t\t */\n\n\t\tmergeVertices: function () {\n\n\t\t\tvar verticesMap = {}; // Hashmap for looking up vertices by position coordinates (and making sure they are unique)\n\t\t\tvar unique = [], changes = [];\n\n\t\t\tvar v, key;\n\t\t\tvar precisionPoints = 4; // number of decimal points, e.g. 4 for epsilon of 0.0001\n\t\t\tvar precision = Math.pow( 10, precisionPoints );\n\t\t\tvar i, il, face;\n\t\t\tvar indices, j, jl;\n\n\t\t\tfor ( i = 0, il = this.vertices.length; i < il; i ++ ) {\n\n\t\t\t\tv = this.vertices[ i ];\n\t\t\t\tkey = Math.round( v.x * precision ) + '_' + Math.round( v.y * precision ) + '_' + Math.round( v.z * precision );\n\n\t\t\t\tif ( verticesMap[ key ] === undefined ) {\n\n\t\t\t\t\tverticesMap[ key ] = i;\n\t\t\t\t\tunique.push( this.vertices[ i ] );\n\t\t\t\t\tchanges[ i ] = unique.length - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\t//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);\n\t\t\t\t\tchanges[ i ] = changes[ verticesMap[ key ] ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\t// if faces are completely degenerate after merging vertices, we\n\t\t\t// have to remove them from the geometry.\n\t\t\tvar faceIndicesToRemove = [];\n\n\t\t\tfor ( i = 0, il = this.faces.length; i < il; i ++ ) {\n\n\t\t\t\tface = this.faces[ i ];\n\n\t\t\t\tface.a = changes[ face.a ];\n\t\t\t\tface.b = changes[ face.b ];\n\t\t\t\tface.c = changes[ face.c ];\n\n\t\t\t\tindices = [ face.a, face.b, face.c ];\n\n\t\t\t\tvar dupIndex = - 1;\n\n\t\t\t\t// if any duplicate vertices are found in a Face3\n\t\t\t\t// we have to remove the face as nothing can be saved\n\t\t\t\tfor ( var n = 0; n < 3; n ++ ) {\n\n\t\t\t\t\tif ( indices[ n ] === indices[ ( n + 1 ) % 3 ] ) {\n\n\t\t\t\t\t\tdupIndex = n;\n\t\t\t\t\t\tfaceIndicesToRemove.push( i );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( i = faceIndicesToRemove.length - 1; i >= 0; i -- ) {\n\n\t\t\t\tvar idx = faceIndicesToRemove[ i ];\n\n\t\t\t\tthis.faces.splice( idx, 1 );\n\n\t\t\t\tfor ( j = 0, jl = this.faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ j ].splice( idx, 1 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Use unique set of vertices\n\n\t\t\tvar diff = this.vertices.length - unique.length;\n\t\t\tthis.vertices = unique;\n\t\t\treturn diff;\n\n\t\t},\n\n\t\tsortFacesByMaterialIndex: function () {\n\n\t\t\tvar faces = this.faces;\n\t\t\tvar length = faces.length;\n\n\t\t\t// tag faces\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tfaces[ i ]._id = i;\n\n\t\t\t}\n\n\t\t\t// sort faces\n\n\t\t\tfunction materialIndexSort( a, b ) {\n\n\t\t\t\treturn a.materialIndex - b.materialIndex;\n\n\t\t\t}\n\n\t\t\tfaces.sort( materialIndexSort );\n\n\t\t\t// sort uvs\n\n\t\t\tvar uvs1 = this.faceVertexUvs[ 0 ];\n\t\t\tvar uvs2 = this.faceVertexUvs[ 1 ];\n\n\t\t\tvar newUvs1, newUvs2;\n\n\t\t\tif ( uvs1 && uvs1.length === length ) newUvs1 = [];\n\t\t\tif ( uvs2 && uvs2.length === length ) newUvs2 = [];\n\n\t\t\tfor ( var i = 0; i < length; i ++ ) {\n\n\t\t\t\tvar id = faces[ i ]._id;\n\n\t\t\t\tif ( newUvs1 ) newUvs1.push( uvs1[ id ] );\n\t\t\t\tif ( newUvs2 ) newUvs2.push( uvs2[ id ] );\n\n\t\t\t}\n\n\t\t\tif ( newUvs1 ) this.faceVertexUvs[ 0 ] = newUvs1;\n\t\t\tif ( newUvs2 ) this.faceVertexUvs[ 1 ] = newUvs2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.4,\n\t\t\t\t\ttype: 'Geometry',\n\t\t\t\t\tgenerator: 'Geometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard Geometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tvar vertices = [];\n\n\t\t\tfor ( var i = 0; i < this.vertices.length; i ++ ) {\n\n\t\t\t\tvar vertex = this.vertices[ i ];\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t\tvar faces = [];\n\t\t\tvar normals = [];\n\t\t\tvar normalsHash = {};\n\t\t\tvar colors = [];\n\t\t\tvar colorsHash = {};\n\t\t\tvar uvs = [];\n\t\t\tvar uvsHash = {};\n\n\t\t\tfor ( var i = 0; i < this.faces.length; i ++ ) {\n\n\t\t\t\tvar face = this.faces[ i ];\n\n\t\t\t\tvar hasMaterial = true;\n\t\t\t\tvar hasFaceUv = false; // deprecated\n\t\t\t\tvar hasFaceVertexUv = this.faceVertexUvs[ 0 ][ i ] !== undefined;\n\t\t\t\tvar hasFaceNormal = face.normal.length() > 0;\n\t\t\t\tvar hasFaceVertexNormal = face.vertexNormals.length > 0;\n\t\t\t\tvar hasFaceColor = face.color.r !== 1 || face.color.g !== 1 || face.color.b !== 1;\n\t\t\t\tvar hasFaceVertexColor = face.vertexColors.length > 0;\n\n\t\t\t\tvar faceType = 0;\n\n\t\t\t\tfaceType = setBit( faceType, 0, 0 ); // isQuad\n\t\t\t\tfaceType = setBit( faceType, 1, hasMaterial );\n\t\t\t\tfaceType = setBit( faceType, 2, hasFaceUv );\n\t\t\t\tfaceType = setBit( faceType, 3, hasFaceVertexUv );\n\t\t\t\tfaceType = setBit( faceType, 4, hasFaceNormal );\n\t\t\t\tfaceType = setBit( faceType, 5, hasFaceVertexNormal );\n\t\t\t\tfaceType = setBit( faceType, 6, hasFaceColor );\n\t\t\t\tfaceType = setBit( faceType, 7, hasFaceVertexColor );\n\n\t\t\t\tfaces.push( faceType );\n\t\t\t\tfaces.push( face.a, face.b, face.c );\n\t\t\t\tfaces.push( face.materialIndex );\n\n\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\tvar faceVertexUvs = this.faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 0 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 1 ] ),\n\t\t\t\t\t\tgetUvIndex( faceVertexUvs[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\tfaces.push( getNormalIndex( face.normal ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 0 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 1 ] ),\n\t\t\t\t\t\tgetNormalIndex( vertexNormals[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\tfaces.push( getColorIndex( face.color ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\t\tfaces.push(\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 0 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 1 ] ),\n\t\t\t\t\t\tgetColorIndex( vertexColors[ 2 ] )\n\t\t\t\t\t);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction setBit( value, position, enabled ) {\n\n\t\t\t\treturn enabled ? value | ( 1 << position ) : value & ( ~ ( 1 << position ) );\n\n\t\t\t}\n\n\t\t\tfunction getNormalIndex( normal ) {\n\n\t\t\t\tvar hash = normal.x.toString() + normal.y.toString() + normal.z.toString();\n\n\t\t\t\tif ( normalsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tnormalsHash[ hash ] = normals.length / 3;\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\treturn normalsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getColorIndex( color ) {\n\n\t\t\t\tvar hash = color.r.toString() + color.g.toString() + color.b.toString();\n\n\t\t\t\tif ( colorsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tcolorsHash[ hash ] = colors.length;\n\t\t\t\tcolors.push( color.getHex() );\n\n\t\t\t\treturn colorsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tfunction getUvIndex( uv ) {\n\n\t\t\t\tvar hash = uv.x.toString() + uv.y.toString();\n\n\t\t\t\tif ( uvsHash[ hash ] !== undefined ) {\n\n\t\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t\t}\n\n\t\t\t\tuvsHash[ hash ] = uvs.length / 2;\n\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\treturn uvsHash[ hash ];\n\n\t\t\t}\n\n\t\t\tdata.data = {};\n\n\t\t\tdata.data.vertices = vertices;\n\t\t\tdata.data.normals = normals;\n\t\t\tif ( colors.length > 0 ) data.data.colors = colors;\n\t\t\tif ( uvs.length > 0 ) data.data.uvs = [ uvs ]; // temporal backward compatibility\n\t\t\tdata.data.faces = faces;\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t// Handle primitives\n\n\t\t\tvar parameters = this.parameters;\n\n\t\t\tif ( parameters !== undefined ) {\n\n\t\t\t\tvar values = [];\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tvalues.push( parameters[ key ] );\n\n\t\t\t\t}\n\n\t\t\t\tvar geometry = Object.create( this.constructor.prototype );\n\t\t\t\tthis.constructor.apply( geometry, values );\n\t\t\t\treturn geometry;\n\n\t\t\t}\n\n\t\t\treturn new this.constructor().copy( this );\n\t\t\t*/\n\n\t\t\treturn new Geometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.vertices = [];\n\t\t\tthis.faces = [];\n\t\t\tthis.faceVertexUvs = [ [] ];\n\t\t\tthis.colors = [];\n\n\t\t\tvar vertices = source.vertices;\n\n\t\t\tfor ( var i = 0, il = vertices.length; i < il; i ++ ) {\n\n\t\t\t\tthis.vertices.push( vertices[ i ].clone() );\n\n\t\t\t}\n\n\t\t\tvar colors = source.colors;\n\n\t\t\tfor ( var i = 0, il = colors.length; i < il; i ++ ) {\n\n\t\t\t\tthis.colors.push( colors[ i ].clone() );\n\n\t\t\t}\n\n\t\t\tvar faces = source.faces;\n\n\t\t\tfor ( var i = 0, il = faces.length; i < il; i ++ ) {\n\n\t\t\t\tthis.faces.push( faces[ i ].clone() );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, il = source.faceVertexUvs.length; i < il; i ++ ) {\n\n\t\t\t\tvar faceVertexUvs = source.faceVertexUvs[ i ];\n\n\t\t\t\tif ( this.faceVertexUvs[ i ] === undefined ) {\n\n\t\t\t\t\tthis.faceVertexUvs[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0, jl = faceVertexUvs.length; j < jl; j ++ ) {\n\n\t\t\t\t\tvar uvs = faceVertexUvs[ j ], uvsCopy = [];\n\n\t\t\t\t\tfor ( var k = 0, kl = uvs.length; k < kl; k ++ ) {\n\n\t\t\t\t\t\tvar uv = uvs[ k ];\n\n\t\t\t\t\t\tuvsCopy.push( uv.clone() );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.faceVertexUvs[ i ].push( uvsCopy );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\tvar count$3 = 0;\n\tfunction GeometryIdCount() { return count$3++; }\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectGeometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: GeometryIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'DirectGeometry';\n\n\t\tthis.indices = [];\n\t\tthis.vertices = [];\n\t\tthis.normals = [];\n\t\tthis.colors = [];\n\t\tthis.uvs = [];\n\t\tthis.uvs2 = [];\n\n\t\tthis.groups = [];\n\n\t\tthis.morphTargets = {};\n\n\t\tthis.skinWeights = [];\n\t\tthis.skinIndices = [];\n\n\t\t// this.lineDistances = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\t// update flags\n\n\t\tthis.verticesNeedUpdate = false;\n\t\tthis.normalsNeedUpdate = false;\n\t\tthis.colorsNeedUpdate = false;\n\t\tthis.uvsNeedUpdate = false;\n\t\tthis.groupsNeedUpdate = false;\n\n\t}\n\n\tObject.assign( DirectGeometry.prototype, EventDispatcher.prototype, {\n\n\t\tcomputeBoundingBox: Geometry.prototype.computeBoundingBox,\n\t\tcomputeBoundingSphere: Geometry.prototype.computeBoundingSphere,\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\tconsole.warn( 'THREE.DirectGeometry: computeFaceNormals() is not a method of this type of geometry.' );\n\n\t\t},\n\n\t\tcomputeVertexNormals: function () {\n\n\t\t\tconsole.warn( 'THREE.DirectGeometry: computeVertexNormals() is not a method of this type of geometry.' );\n\n\t\t},\n\n\t\tcomputeGroups: function ( geometry ) {\n\n\t\t\tvar group;\n\t\t\tvar groups = [];\n\t\t\tvar materialIndex;\n\n\t\t\tvar faces = geometry.faces;\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t// materials\n\n\t\t\t\tif ( face.materialIndex !== materialIndex ) {\n\n\t\t\t\t\tmaterialIndex = face.materialIndex;\n\n\t\t\t\t\tif ( group !== undefined ) {\n\n\t\t\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\t\t\tgroups.push( group );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgroup = {\n\t\t\t\t\t\tstart: i * 3,\n\t\t\t\t\t\tmaterialIndex: materialIndex\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( group !== undefined ) {\n\n\t\t\t\tgroup.count = ( i * 3 ) - group.start;\n\t\t\t\tgroups.push( group );\n\n\t\t\t}\n\n\t\t\tthis.groups = groups;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tvar faces = geometry.faces;\n\t\t\tvar vertices = geometry.vertices;\n\t\t\tvar faceVertexUvs = geometry.faceVertexUvs;\n\n\t\t\tvar hasFaceVertexUv = faceVertexUvs[ 0 ] && faceVertexUvs[ 0 ].length > 0;\n\t\t\tvar hasFaceVertexUv2 = faceVertexUvs[ 1 ] && faceVertexUvs[ 1 ].length > 0;\n\n\t\t\t// morphs\n\n\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\tvar morphTargetsLength = morphTargets.length;\n\n\t\t\tvar morphTargetsPosition;\n\n\t\t\tif ( morphTargetsLength > 0 ) {\n\n\t\t\t\tmorphTargetsPosition = [];\n\n\t\t\t\tfor ( var i = 0; i < morphTargetsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsPosition[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.position = morphTargetsPosition;\n\n\t\t\t}\n\n\t\t\tvar morphNormals = geometry.morphNormals;\n\t\t\tvar morphNormalsLength = morphNormals.length;\n\n\t\t\tvar morphTargetsNormal;\n\n\t\t\tif ( morphNormalsLength > 0 ) {\n\n\t\t\t\tmorphTargetsNormal = [];\n\n\t\t\t\tfor ( var i = 0; i < morphNormalsLength; i ++ ) {\n\n\t\t\t\t\tmorphTargetsNormal[ i ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphTargets.normal = morphTargetsNormal;\n\n\t\t\t}\n\n\t\t\t// skins\n\n\t\t\tvar skinIndices = geometry.skinIndices;\n\t\t\tvar skinWeights = geometry.skinWeights;\n\n\t\t\tvar hasSkinIndices = skinIndices.length === vertices.length;\n\t\t\tvar hasSkinWeights = skinWeights.length === vertices.length;\n\n\t\t\t//\n\n\t\t\tfor ( var i = 0; i < faces.length; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tthis.vertices.push( vertices[ face.a ], vertices[ face.b ], vertices[ face.c ] );\n\n\t\t\t\tvar vertexNormals = face.vertexNormals;\n\n\t\t\t\tif ( vertexNormals.length === 3 ) {\n\n\t\t\t\t\tthis.normals.push( vertexNormals[ 0 ], vertexNormals[ 1 ], vertexNormals[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar normal = face.normal;\n\n\t\t\t\t\tthis.normals.push( normal, normal, normal );\n\n\t\t\t\t}\n\n\t\t\t\tvar vertexColors = face.vertexColors;\n\n\t\t\t\tif ( vertexColors.length === 3 ) {\n\n\t\t\t\t\tthis.colors.push( vertexColors[ 0 ], vertexColors[ 1 ], vertexColors[ 2 ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar color = face.color;\n\n\t\t\t\t\tthis.colors.push( color, color, color );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 0 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ', i );\n\n\t\t\t\t\t\tthis.uvs.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasFaceVertexUv2 === true ) {\n\n\t\t\t\t\tvar vertexUvs = faceVertexUvs[ 1 ][ i ];\n\n\t\t\t\t\tif ( vertexUvs !== undefined ) {\n\n\t\t\t\t\t\tthis.uvs2.push( vertexUvs[ 0 ], vertexUvs[ 1 ], vertexUvs[ 2 ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ', i );\n\n\t\t\t\t\t\tthis.uvs2.push( new Vector2(), new Vector2(), new Vector2() );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t// morphs\n\n\t\t\t\tfor ( var j = 0; j < morphTargetsLength; j ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ j ].vertices;\n\n\t\t\t\t\tmorphTargetsPosition[ j ].push( morphTarget[ face.a ], morphTarget[ face.b ], morphTarget[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var j = 0; j < morphNormalsLength; j ++ ) {\n\n\t\t\t\t\tvar morphNormal = morphNormals[ j ].vertexNormals[ i ];\n\n\t\t\t\t\tmorphTargetsNormal[ j ].push( morphNormal.a, morphNormal.b, morphNormal.c );\n\n\t\t\t\t}\n\n\t\t\t\t// skins\n\n\t\t\t\tif ( hasSkinIndices ) {\n\n\t\t\t\t\tthis.skinIndices.push( skinIndices[ face.a ], skinIndices[ face.b ], skinIndices[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t\tif ( hasSkinWeights ) {\n\n\t\t\t\t\tthis.skinWeights.push( skinWeights[ face.a ], skinWeights[ face.b ], skinWeights[ face.c ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.computeGroups( geometry );\n\n\t\t\tthis.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\tthis.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\tthis.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\tthis.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\tthis.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferGeometry() {\n\n\t\tObject.defineProperty( this, 'id', { value: GeometryIdCount() } );\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.name = '';\n\t\tthis.type = 'BufferGeometry';\n\n\t\tthis.index = null;\n\t\tthis.attributes = {};\n\n\t\tthis.morphAttributes = {};\n\n\t\tthis.groups = [];\n\n\t\tthis.boundingBox = null;\n\t\tthis.boundingSphere = null;\n\n\t\tthis.drawRange = { start: 0, count: Infinity };\n\n\t}\n\n\tObject.assign( BufferGeometry.prototype, EventDispatcher.prototype, {\n\n\t\tisBufferGeometry: true,\n\n\t\tgetIndex: function () {\n\n\t\t\treturn this.index;\n\n\t\t},\n\n\t\tsetIndex: function ( index ) {\n\n\t\t\tthis.index = index;\n\n\t\t},\n\n\t\taddAttribute: function ( name, attribute ) {\n\n\t\t\tif ( (attribute && attribute.isBufferAttribute) === false && (attribute && attribute.isInterleavedBufferAttribute) === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).' );\n\n\t\t\t\tthis.addAttribute( name, new BufferAttribute( arguments[ 1 ], arguments[ 2 ] ) );\n\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( name === 'index' ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.' );\n\t\t\t\tthis.setIndex( attribute );\n\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.attributes[ name ] = attribute;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetAttribute: function ( name ) {\n\n\t\t\treturn this.attributes[ name ];\n\n\t\t},\n\n\t\tremoveAttribute: function ( name ) {\n\n\t\t\tdelete this.attributes[ name ];\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddGroup: function ( start, count, materialIndex ) {\n\n\t\t\tthis.groups.push( {\n\n\t\t\t\tstart: start,\n\t\t\t\tcount: count,\n\t\t\t\tmaterialIndex: materialIndex !== undefined ? materialIndex : 0\n\n\t\t\t} );\n\n\t\t},\n\n\t\tclearGroups: function () {\n\n\t\t\tthis.groups = [];\n\n\t\t},\n\n\t\tsetDrawRange: function ( start, count ) {\n\n\t\t\tthis.drawRange.start = start;\n\t\t\tthis.drawRange.count = count;\n\n\t\t},\n\n\t\tapplyMatrix: function ( matrix ) {\n\n\t\t\tvar position = this.attributes.position;\n\n\t\t\tif ( position !== undefined ) {\n\n\t\t\t\tmatrix.applyToVector3Array( position.array );\n\t\t\t\tposition.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tvar normal = this.attributes.normal;\n\n\t\t\tif ( normal !== undefined ) {\n\n\t\t\t\tvar normalMatrix = new Matrix3().getNormalMatrix( matrix );\n\n\t\t\t\tnormalMatrix.applyToVector3Array( normal.array );\n\t\t\t\tnormal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tif ( this.boundingBox !== null ) {\n\n\t\t\t\tthis.computeBoundingBox();\n\n\t\t\t}\n\n\t\t\tif ( this.boundingSphere !== null ) {\n\n\t\t\t\tthis.computeBoundingSphere();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\trotateX: function () {\n\n\t\t\t// rotate geometry around world x-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateX( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationX( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateY: function () {\n\n\t\t\t// rotate geometry around world y-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateY( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationY( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\trotateZ: function () {\n\n\t\t\t// rotate geometry around world z-axis\n\n\t\t\tvar m1;\n\n\t\t\treturn function rotateZ( angle ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeRotationZ( angle );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttranslate: function () {\n\n\t\t\t// translate geometry\n\n\t\t\tvar m1;\n\n\t\t\treturn function translate( x, y, z ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeTranslation( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tscale: function () {\n\n\t\t\t// scale geometry\n\n\t\t\tvar m1;\n\n\t\t\treturn function scale( x, y, z ) {\n\n\t\t\t\tif ( m1 === undefined ) m1 = new Matrix4();\n\n\t\t\t\tm1.makeScale( x, y, z );\n\n\t\t\t\tthis.applyMatrix( m1 );\n\n\t\t\t\treturn this;\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tlookAt: function () {\n\n\t\t\tvar obj;\n\n\t\t\treturn function lookAt( vector ) {\n\n\t\t\t\tif ( obj === undefined ) obj = new Object3D();\n\n\t\t\t\tobj.lookAt( vector );\n\n\t\t\t\tobj.updateMatrix();\n\n\t\t\t\tthis.applyMatrix( obj.matrix );\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcenter: function () {\n\n\t\t\tthis.computeBoundingBox();\n\n\t\t\tvar offset = this.boundingBox.getCenter().negate();\n\n\t\t\tthis.translate( offset.x, offset.y, offset.z );\n\n\t\t\treturn offset;\n\n\t\t},\n\n\t\tsetFromObject: function ( object ) {\n\n\t\t\t// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( (object && object.isPoints) || (object && object.isLine) ) {\n\n\t\t\t\tvar positions = new Float32Attribute( geometry.vertices.length * 3, 3 );\n\t\t\t\tvar colors = new Float32Attribute( geometry.colors.length * 3, 3 );\n\n\t\t\t\tthis.addAttribute( 'position', positions.copyVector3sArray( geometry.vertices ) );\n\t\t\t\tthis.addAttribute( 'color', colors.copyColorsArray( geometry.colors ) );\n\n\t\t\t\tif ( geometry.lineDistances && geometry.lineDistances.length === geometry.vertices.length ) {\n\n\t\t\t\t\tvar lineDistances = new Float32Attribute( geometry.lineDistances.length, 1 );\n\n\t\t\t\t\tthis.addAttribute( 'lineDistance', lineDistances.copyArray( geometry.lineDistances ) );\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t\t}\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t\t}\n\n\t\t\t} else if ( (object && object.isMesh) ) {\n\n\t\t\t\tif ( (geometry && geometry.isGeometry) ) {\n\n\t\t\t\t\tthis.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateFromObject: function ( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( (object && object.isMesh) ) {\n\n\t\t\t\tvar direct = geometry.__directGeometry;\n\n\t\t\t\tif ( geometry.elementsNeedUpdate === true ) {\n\n\t\t\t\t\tdirect = undefined;\n\t\t\t\t\tgeometry.elementsNeedUpdate = false;\n\n\t\t\t\t}\n\n\t\t\t\tif ( direct === undefined ) {\n\n\t\t\t\t\treturn this.fromGeometry( geometry );\n\n\t\t\t\t}\n\n\t\t\t\tdirect.verticesNeedUpdate = geometry.verticesNeedUpdate;\n\t\t\t\tdirect.normalsNeedUpdate = geometry.normalsNeedUpdate;\n\t\t\t\tdirect.colorsNeedUpdate = geometry.colorsNeedUpdate;\n\t\t\t\tdirect.uvsNeedUpdate = geometry.uvsNeedUpdate;\n\t\t\t\tdirect.groupsNeedUpdate = geometry.groupsNeedUpdate;\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t\tgeometry = direct;\n\n\t\t\t}\n\n\t\t\tvar attribute;\n\n\t\t\tif ( geometry.verticesNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.position;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.vertices );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.verticesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.normalsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.normal;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector3sArray( geometry.normals );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.normalsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.colorsNeedUpdate === true ) {\n\n\t\t\t\tattribute = this.attributes.color;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyColorsArray( geometry.colors );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.colorsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvsNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.uv;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyVector2sArray( geometry.uvs );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.uvsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.lineDistancesNeedUpdate ) {\n\n\t\t\t\tattribute = this.attributes.lineDistance;\n\n\t\t\t\tif ( attribute !== undefined ) {\n\n\t\t\t\t\tattribute.copyArray( geometry.lineDistances );\n\t\t\t\t\tattribute.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.lineDistancesNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\tif ( geometry.groupsNeedUpdate ) {\n\n\t\t\t\tgeometry.computeGroups( object.geometry );\n\t\t\t\tthis.groups = geometry.groups;\n\n\t\t\t\tgeometry.groupsNeedUpdate = false;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tfromGeometry: function ( geometry ) {\n\n\t\t\tgeometry.__directGeometry = new DirectGeometry().fromGeometry( geometry );\n\n\t\t\treturn this.fromDirectGeometry( geometry.__directGeometry );\n\n\t\t},\n\n\t\tfromDirectGeometry: function ( geometry ) {\n\n\t\t\tvar positions = new Float32Array( geometry.vertices.length * 3 );\n\t\t\tthis.addAttribute( 'position', new BufferAttribute( positions, 3 ).copyVector3sArray( geometry.vertices ) );\n\n\t\t\tif ( geometry.normals.length > 0 ) {\n\n\t\t\t\tvar normals = new Float32Array( geometry.normals.length * 3 );\n\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ).copyVector3sArray( geometry.normals ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.colors.length > 0 ) {\n\n\t\t\t\tvar colors = new Float32Array( geometry.colors.length * 3 );\n\t\t\t\tthis.addAttribute( 'color', new BufferAttribute( colors, 3 ).copyColorsArray( geometry.colors ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs.length > 0 ) {\n\n\t\t\t\tvar uvs = new Float32Array( geometry.uvs.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ).copyVector2sArray( geometry.uvs ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.uvs2.length > 0 ) {\n\n\t\t\t\tvar uvs2 = new Float32Array( geometry.uvs2.length * 2 );\n\t\t\t\tthis.addAttribute( 'uv2', new BufferAttribute( uvs2, 2 ).copyVector2sArray( geometry.uvs2 ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.indices.length > 0 ) {\n\n\t\t\t\tvar TypeArray = geometry.vertices.length > 65535 ? Uint32Array : Uint16Array;\n\t\t\t\tvar indices = new TypeArray( geometry.indices.length * 3 );\n\t\t\t\tthis.setIndex( new BufferAttribute( indices, 1 ).copyIndicesArray( geometry.indices ) );\n\n\t\t\t}\n\n\t\t\t// groups\n\n\t\t\tthis.groups = geometry.groups;\n\n\t\t\t// morphs\n\n\t\t\tfor ( var name in geometry.morphTargets ) {\n\n\t\t\t\tvar array = [];\n\t\t\t\tvar morphTargets = geometry.morphTargets[ name ];\n\n\t\t\t\tfor ( var i = 0, l = morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar morphTarget = morphTargets[ i ];\n\n\t\t\t\t\tvar attribute = new Float32Attribute( morphTarget.length * 3, 3 );\n\n\t\t\t\t\tarray.push( attribute.copyVector3sArray( morphTarget ) );\n\n\t\t\t\t}\n\n\t\t\t\tthis.morphAttributes[ name ] = array;\n\n\t\t\t}\n\n\t\t\t// skinning\n\n\t\t\tif ( geometry.skinIndices.length > 0 ) {\n\n\t\t\t\tvar skinIndices = new Float32Attribute( geometry.skinIndices.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinIndex', skinIndices.copyVector4sArray( geometry.skinIndices ) );\n\n\t\t\t}\n\n\t\t\tif ( geometry.skinWeights.length > 0 ) {\n\n\t\t\t\tvar skinWeights = new Float32Attribute( geometry.skinWeights.length * 4, 4 );\n\t\t\t\tthis.addAttribute( 'skinWeight', skinWeights.copyVector4sArray( geometry.skinWeights ) );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( geometry.boundingSphere !== null ) {\n\n\t\t\t\tthis.boundingSphere = geometry.boundingSphere.clone();\n\n\t\t\t}\n\n\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\tthis.boundingBox = geometry.boundingBox.clone();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcomputeBoundingBox: function () {\n\n\t\t\tif ( this.boundingBox === null ) {\n\n\t\t\t\tthis.boundingBox = new Box3();\n\n\t\t\t}\n\n\t\t\tvar positions = this.attributes.position.array;\n\n\t\t\tif ( positions !== undefined ) {\n\n\t\t\t\tthis.boundingBox.setFromArray( positions );\n\n\t\t\t} else {\n\n\t\t\t\tthis.boundingBox.makeEmpty();\n\n\t\t\t}\n\n\t\t\tif ( isNaN( this.boundingBox.min.x ) || isNaN( this.boundingBox.min.y ) || isNaN( this.boundingBox.min.z ) ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingBox: Computed min/max have NaN values. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t}\n\n\t\t},\n\n\t\tcomputeBoundingSphere: function () {\n\n\t\t\tvar box = new Box3();\n\t\t\tvar vector = new Vector3();\n\n\t\t\treturn function computeBoundingSphere() {\n\n\t\t\t\tif ( this.boundingSphere === null ) {\n\n\t\t\t\t\tthis.boundingSphere = new Sphere();\n\n\t\t\t\t}\n\n\t\t\t\tvar positions = this.attributes.position;\n\n\t\t\t\tif ( positions ) {\n\n\t\t\t\t\tvar array = positions.array;\n\t\t\t\t\tvar center = this.boundingSphere.center;\n\n\t\t\t\t\tbox.setFromArray( array );\n\t\t\t\t\tbox.getCenter( center );\n\n\t\t\t\t\t// hoping to find a boundingSphere with a radius smaller than the\n\t\t\t\t\t// boundingSphere of the boundingBox: sqrt(3) smaller in the best case\n\n\t\t\t\t\tvar maxRadiusSq = 0;\n\n\t\t\t\t\tfor ( var i = 0, il = array.length; i < il; i += 3 ) {\n\n\t\t\t\t\t\tvector.fromArray( array, i );\n\t\t\t\t\t\tmaxRadiusSq = Math.max( maxRadiusSq, center.distanceToSquared( vector ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.boundingSphere.radius = Math.sqrt( maxRadiusSq );\n\n\t\t\t\t\tif ( isNaN( this.boundingSphere.radius ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The \"position\" attribute is likely to have NaN values.', this );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\tcomputeFaceNormals: function () {\n\n\t\t\t// backwards compatibility\n\n\t\t},\n\n\t\tcomputeVertexNormals: function () {\n\n\t\t\tvar index = this.index;\n\t\t\tvar attributes = this.attributes;\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( attributes.position ) {\n\n\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\tif ( attributes.normal === undefined ) {\n\n\t\t\t\t\tthis.addAttribute( 'normal', new BufferAttribute( new Float32Array( positions.length ), 3 ) );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// reset existing normals to zero\n\n\t\t\t\t\tvar array = attributes.normal.array;\n\n\t\t\t\t\tfor ( var i = 0, il = array.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tarray[ i ] = 0;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar normals = attributes.normal.array;\n\n\t\t\t\tvar vA, vB, vC,\n\n\t\t\t\tpA = new Vector3(),\n\t\t\t\tpB = new Vector3(),\n\t\t\t\tpC = new Vector3(),\n\n\t\t\t\tcb = new Vector3(),\n\t\t\t\tab = new Vector3();\n\n\t\t\t\t// indexed elements\n\n\t\t\t\tif ( index ) {\n\n\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\t\tthis.addGroup( 0, indices.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var j = 0, jl = groups.length; j < jl; ++ j ) {\n\n\t\t\t\t\t\tvar group = groups[ j ];\n\n\t\t\t\t\t\tvar start = group.start;\n\t\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\t\tfor ( var i = start, il = start + count; i < il; i += 3 ) {\n\n\t\t\t\t\t\t\tvA = indices[ i + 0 ] * 3;\n\t\t\t\t\t\t\tvB = indices[ i + 1 ] * 3;\n\t\t\t\t\t\t\tvC = indices[ i + 2 ] * 3;\n\n\t\t\t\t\t\t\tpA.fromArray( positions, vA );\n\t\t\t\t\t\t\tpB.fromArray( positions, vB );\n\t\t\t\t\t\t\tpC.fromArray( positions, vC );\n\n\t\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\t\tnormals[ vA ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vA + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vA + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vB ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vB + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vB + 2 ] += cb.z;\n\n\t\t\t\t\t\t\tnormals[ vC ] += cb.x;\n\t\t\t\t\t\t\tnormals[ vC + 1 ] += cb.y;\n\t\t\t\t\t\t\tnormals[ vC + 2 ] += cb.z;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// non-indexed elements (unconnected triangle soup)\n\n\t\t\t\t\tfor ( var i = 0, il = positions.length; i < il; i += 9 ) {\n\n\t\t\t\t\t\tpA.fromArray( positions, i );\n\t\t\t\t\t\tpB.fromArray( positions, i + 3 );\n\t\t\t\t\t\tpC.fromArray( positions, i + 6 );\n\n\t\t\t\t\t\tcb.subVectors( pC, pB );\n\t\t\t\t\t\tab.subVectors( pA, pB );\n\t\t\t\t\t\tcb.cross( ab );\n\n\t\t\t\t\t\tnormals[ i ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 1 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 2 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 3 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 4 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 5 ] = cb.z;\n\n\t\t\t\t\t\tnormals[ i + 6 ] = cb.x;\n\t\t\t\t\t\tnormals[ i + 7 ] = cb.y;\n\t\t\t\t\t\tnormals[ i + 8 ] = cb.z;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.normalizeNormals();\n\n\t\t\t\tattributes.normal.needsUpdate = true;\n\n\t\t\t}\n\n\t\t},\n\n\t\tmerge: function ( geometry, offset ) {\n\n\t\t\tif ( (geometry && geometry.isBufferGeometry) === false ) {\n\n\t\t\t\tconsole.error( 'THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.', geometry );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tif ( geometry.attributes[ key ] === undefined ) continue;\n\n\t\t\t\tvar attribute1 = attributes[ key ];\n\t\t\t\tvar attributeArray1 = attribute1.array;\n\n\t\t\t\tvar attribute2 = geometry.attributes[ key ];\n\t\t\t\tvar attributeArray2 = attribute2.array;\n\n\t\t\t\tvar attributeSize = attribute2.itemSize;\n\n\t\t\t\tfor ( var i = 0, j = attributeSize * offset; i < attributeArray2.length; i ++, j ++ ) {\n\n\t\t\t\t\tattributeArray1[ j ] = attributeArray2[ i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tnormalizeNormals: function () {\n\n\t\t\tvar normals = this.attributes.normal.array;\n\n\t\t\tvar x, y, z, n;\n\n\t\t\tfor ( var i = 0, il = normals.length; i < il; i += 3 ) {\n\n\t\t\t\tx = normals[ i ];\n\t\t\t\ty = normals[ i + 1 ];\n\t\t\t\tz = normals[ i + 2 ];\n\n\t\t\t\tn = 1.0 / Math.sqrt( x * x + y * y + z * z );\n\n\t\t\t\tnormals[ i ] *= n;\n\t\t\t\tnormals[ i + 1 ] *= n;\n\t\t\t\tnormals[ i + 2 ] *= n;\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoNonIndexed: function () {\n\n\t\t\tif ( this.index === null ) {\n\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.' );\n\t\t\t\treturn this;\n\n\t\t\t}\n\n\t\t\tvar geometry2 = new BufferGeometry();\n\n\t\t\tvar indices = this.index.array;\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\n\t\t\t\tvar array = attribute.array;\n\t\t\t\tvar itemSize = attribute.itemSize;\n\n\t\t\t\tvar array2 = new array.constructor( indices.length * itemSize );\n\n\t\t\t\tvar index = 0, index2 = 0;\n\n\t\t\t\tfor ( var i = 0, l = indices.length; i < l; i ++ ) {\n\n\t\t\t\t\tindex = indices[ i ] * itemSize;\n\n\t\t\t\t\tfor ( var j = 0; j < itemSize; j ++ ) {\n\n\t\t\t\t\t\tarray2[ index2 ++ ] = array[ index ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry2.addAttribute( name, new BufferAttribute( array2, itemSize ) );\n\n\t\t\t}\n\n\t\t\treturn geometry2;\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar data = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.4,\n\t\t\t\t\ttype: 'BufferGeometry',\n\t\t\t\t\tgenerator: 'BufferGeometry.toJSON'\n\t\t\t\t}\n\t\t\t};\n\n\t\t\t// standard BufferGeometry serialization\n\n\t\t\tdata.uuid = this.uuid;\n\t\t\tdata.type = this.type;\n\t\t\tif ( this.name !== '' ) data.name = this.name;\n\n\t\t\tif ( this.parameters !== undefined ) {\n\n\t\t\t\tvar parameters = this.parameters;\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tif ( parameters[ key ] !== undefined ) data[ key ] = parameters[ key ];\n\n\t\t\t\t}\n\n\t\t\t\treturn data;\n\n\t\t\t}\n\n\t\t\tdata.data = { attributes: {} };\n\n\t\t\tvar index = this.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tvar array = Array.prototype.slice.call( index.array );\n\n\t\t\t\tdata.data.index = {\n\t\t\t\t\ttype: index.array.constructor.name,\n\t\t\t\t\tarray: array\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar attributes = this.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\n\t\t\t\tvar array = Array.prototype.slice.call( attribute.array );\n\n\t\t\t\tdata.data.attributes[ key ] = {\n\t\t\t\t\titemSize: attribute.itemSize,\n\t\t\t\t\ttype: attribute.array.constructor.name,\n\t\t\t\t\tarray: array,\n\t\t\t\t\tnormalized: attribute.normalized\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tvar groups = this.groups;\n\n\t\t\tif ( groups.length > 0 ) {\n\n\t\t\t\tdata.data.groups = JSON.parse( JSON.stringify( groups ) );\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = this.boundingSphere;\n\n\t\t\tif ( boundingSphere !== null ) {\n\n\t\t\t\tdata.data.boundingSphere = {\n\t\t\t\t\tcenter: boundingSphere.center.toArray(),\n\t\t\t\t\tradius: boundingSphere.radius\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\t/*\n\t\t\t// Handle primitives\n\n\t\t\tvar parameters = this.parameters;\n\n\t\t\tif ( parameters !== undefined ) {\n\n\t\t\t\tvar values = [];\n\n\t\t\t\tfor ( var key in parameters ) {\n\n\t\t\t\t\tvalues.push( parameters[ key ] );\n\n\t\t\t\t}\n\n\t\t\t\tvar geometry = Object.create( this.constructor.prototype );\n\t\t\t\tthis.constructor.apply( geometry, values );\n\t\t\t\treturn geometry;\n\n\t\t\t}\n\n\t\t\treturn new this.constructor().copy( this );\n\t\t\t*/\n\n\t\t\treturn new BufferGeometry().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tvar index = source.index;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tthis.setIndex( index.clone() );\n\n\t\t\t}\n\n\t\t\tvar attributes = source.attributes;\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ name ];\n\t\t\t\tthis.addAttribute( name, attribute.clone() );\n\n\t\t\t}\n\n\t\t\tvar groups = source.groups;\n\n\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\tvar group = groups[ i ];\n\t\t\t\tthis.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdispose: function () {\n\n\t\t\tthis.dispatchEvent( { type: 'dispose' } );\n\n\t\t}\n\n\t} );\n\n\tBufferGeometry.MaxIndex = 65535;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author jonobr1 / http://jonobr1.com/\n\t */\n\n\tfunction Mesh( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Mesh';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new MeshBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t\tthis.drawMode = TrianglesDrawMode;\n\n\t\tthis.updateMorphTargets();\n\n\t}\n\n\tMesh.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Mesh,\n\n\t\tisMesh: true,\n\n\t\tsetDrawMode: function ( value ) {\n\n\t\t\tthis.drawMode = value;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.drawMode = source.drawMode;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tupdateMorphTargets: function () {\n\n\t\t\tvar morphTargets = this.geometry.morphTargets;\n\n\t\t\tif ( morphTargets !== undefined && morphTargets.length > 0 ) {\n\n\t\t\t\tthis.morphTargetInfluences = [];\n\t\t\t\tthis.morphTargetDictionary = {};\n\n\t\t\t\tfor ( var m = 0, ml = morphTargets.length; m < ml; m ++ ) {\n\n\t\t\t\t\tthis.morphTargetInfluences.push( 0 );\n\t\t\t\t\tthis.morphTargetDictionary[ morphTargets[ m ].name ] = m;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\tvar vA = new Vector3();\n\t\t\tvar vB = new Vector3();\n\t\t\tvar vC = new Vector3();\n\n\t\t\tvar tempA = new Vector3();\n\t\t\tvar tempB = new Vector3();\n\t\t\tvar tempC = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tvar barycoord = new Vector3();\n\n\t\t\tvar intersectionPoint = new Vector3();\n\t\t\tvar intersectionPointWorld = new Vector3();\n\n\t\t\tfunction uvIntersection( point, p1, p2, p3, uv1, uv2, uv3 ) {\n\n\t\t\t\tTriangle.barycoordFromPoint( point, p1, p2, p3, barycoord );\n\n\t\t\t\tuv1.multiplyScalar( barycoord.x );\n\t\t\t\tuv2.multiplyScalar( barycoord.y );\n\t\t\t\tuv3.multiplyScalar( barycoord.z );\n\n\t\t\t\tuv1.add( uv2 ).add( uv3 );\n\n\t\t\t\treturn uv1.clone();\n\n\t\t\t}\n\n\t\t\tfunction checkIntersection( object, raycaster, ray, pA, pB, pC, point ) {\n\n\t\t\t\tvar intersect;\n\t\t\t\tvar material = object.material;\n\n\t\t\t\tif ( material.side === BackSide ) {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pC, pB, pA, true, point );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tintersect = ray.intersectTriangle( pA, pB, pC, material.side !== DoubleSide, point );\n\n\t\t\t\t}\n\n\t\t\t\tif ( intersect === null ) return null;\n\n\t\t\t\tintersectionPointWorld.copy( point );\n\t\t\t\tintersectionPointWorld.applyMatrix4( object.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectionPointWorld );\n\n\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return null;\n\n\t\t\t\treturn {\n\t\t\t\t\tdistance: distance,\n\t\t\t\t\tpoint: intersectionPointWorld.clone(),\n\t\t\t\t\tobject: object\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\tfunction checkBufferGeometryIntersection( object, raycaster, ray, positions, uvs, a, b, c ) {\n\n\t\t\t\tvA.fromArray( positions, a * 3 );\n\t\t\t\tvB.fromArray( positions, b * 3 );\n\t\t\t\tvC.fromArray( positions, c * 3 );\n\n\t\t\t\tvar intersection = checkIntersection( object, raycaster, ray, vA, vB, vC, intersectionPoint );\n\n\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\tif ( uvs ) {\n\n\t\t\t\t\t\tuvA.fromArray( uvs, a * 2 );\n\t\t\t\t\t\tuvB.fromArray( uvs, b * 2 );\n\t\t\t\t\t\tuvC.fromArray( uvs, c * 2 );\n\n\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, vA, vB, vC, uvA, uvB, uvC );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tintersection.face = new Face3( a, b, c, Triangle.normal( vA, vB, vC ) );\n\t\t\t\t\tintersection.faceIndex = a;\n\n\t\t\t\t}\n\n\t\t\t\treturn intersection;\n\n\t\t\t}\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar material = this.material;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\tif ( material === undefined ) return;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\t// Check boundingBox before continuing\n\n\t\t\t\tif ( geometry.boundingBox !== null ) {\n\n\t\t\t\t\tif ( ray.intersectsBox( geometry.boundingBox ) === false ) return;\n\n\t\t\t\t}\n\n\t\t\t\tvar uvs, intersection;\n\n\t\t\t\tif ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\t\t\tvar a, b, c;\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( attributes.uv !== undefined ) {\n\n\t\t\t\t\t\tuvs = attributes.uv.array;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, l = indices.length; i < l; i += 3 ) {\n\n\t\t\t\t\t\t\ta = indices[ i ];\n\t\t\t\t\t\t\tb = indices[ i + 1 ];\n\t\t\t\t\t\t\tc = indices[ i + 2 ];\n\n\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c );\n\n\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\tintersection.faceIndex = Math.floor( i / 3 ); // triangle number in indices buffer semantics\n\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length; i < l; i += 9 ) {\n\n\t\t\t\t\t\t\ta = i / 3;\n\t\t\t\t\t\t\tb = a + 1;\n\t\t\t\t\t\t\tc = a + 2;\n\n\t\t\t\t\t\t\tintersection = checkBufferGeometryIntersection( this, raycaster, ray, positions, uvs, a, b, c );\n\n\t\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\t\tintersection.index = a; // triangle number in positions buffer semantics\n\t\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( (geometry && geometry.isGeometry) ) {\n\n\t\t\t\t\tvar fvA, fvB, fvC;\n\t\t\t\t\tvar isFaceMaterial = (material && material.isMultiMaterial);\n\t\t\t\t\tvar materials = isFaceMaterial === true ? material.materials : null;\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar faceVertexUvs = geometry.faceVertexUvs[ 0 ];\n\t\t\t\t\tif ( faceVertexUvs.length > 0 ) uvs = faceVertexUvs;\n\n\t\t\t\t\tfor ( var f = 0, fl = faces.length; f < fl; f ++ ) {\n\n\t\t\t\t\t\tvar face = faces[ f ];\n\t\t\t\t\t\tvar faceMaterial = isFaceMaterial === true ? materials[ face.materialIndex ] : material;\n\n\t\t\t\t\t\tif ( faceMaterial === undefined ) continue;\n\n\t\t\t\t\t\tfvA = vertices[ face.a ];\n\t\t\t\t\t\tfvB = vertices[ face.b ];\n\t\t\t\t\t\tfvC = vertices[ face.c ];\n\n\t\t\t\t\t\tif ( faceMaterial.morphTargets === true ) {\n\n\t\t\t\t\t\t\tvar morphTargets = geometry.morphTargets;\n\t\t\t\t\t\t\tvar morphInfluences = this.morphTargetInfluences;\n\n\t\t\t\t\t\t\tvA.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvB.set( 0, 0, 0 );\n\t\t\t\t\t\t\tvC.set( 0, 0, 0 );\n\n\t\t\t\t\t\t\tfor ( var t = 0, tl = morphTargets.length; t < tl; t ++ ) {\n\n\t\t\t\t\t\t\t\tvar influence = morphInfluences[ t ];\n\n\t\t\t\t\t\t\t\tif ( influence === 0 ) continue;\n\n\t\t\t\t\t\t\t\tvar targets = morphTargets[ t ].vertices;\n\n\t\t\t\t\t\t\t\tvA.addScaledVector( tempA.subVectors( targets[ face.a ], fvA ), influence );\n\t\t\t\t\t\t\t\tvB.addScaledVector( tempB.subVectors( targets[ face.b ], fvB ), influence );\n\t\t\t\t\t\t\t\tvC.addScaledVector( tempC.subVectors( targets[ face.c ], fvC ), influence );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvA.add( fvA );\n\t\t\t\t\t\t\tvB.add( fvB );\n\t\t\t\t\t\t\tvC.add( fvC );\n\n\t\t\t\t\t\t\tfvA = vA;\n\t\t\t\t\t\t\tfvB = vB;\n\t\t\t\t\t\t\tfvC = vC;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tintersection = checkIntersection( this, raycaster, ray, fvA, fvB, fvC, intersectionPoint );\n\n\t\t\t\t\t\tif ( intersection ) {\n\n\t\t\t\t\t\t\tif ( uvs ) {\n\n\t\t\t\t\t\t\t\tvar uvs_f = uvs[ f ];\n\t\t\t\t\t\t\t\tuvA.copy( uvs_f[ 0 ] );\n\t\t\t\t\t\t\t\tuvB.copy( uvs_f[ 1 ] );\n\t\t\t\t\t\t\t\tuvC.copy( uvs_f[ 2 ] );\n\n\t\t\t\t\t\t\t\tintersection.uv = uvIntersection( intersectionPoint, fvA, fvB, fvC, uvA, uvB, uvC );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tintersection.face = face;\n\t\t\t\t\t\t\tintersection.faceIndex = f;\n\t\t\t\t\t\t\tintersects.push( intersection );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'BoxBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tvar scope = this;\n\n\t\t// segments\n\t\twidthSegments = Math.floor( widthSegments ) || 1;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\t\tdepthSegments = Math.floor( depthSegments ) || 1;\n\n\t\t// these are used to calculate buffer length\n\t\tvar vertexCount = calculateVertexCount( widthSegments, heightSegments, depthSegments );\n\t\tvar indexCount = calculateIndexCount( widthSegments, heightSegments, depthSegments );\n\n\t\t// buffers\n\t\tvar indices = new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount );\n\t\tvar vertices = new Float32Array( vertexCount * 3 );\n\t\tvar normals = new Float32Array( vertexCount * 3 );\n\t\tvar uvs = new Float32Array( vertexCount * 2 );\n\n\t\t// offset variables\n\t\tvar vertexBufferOffset = 0;\n\t\tvar uvBufferOffset = 0;\n\t\tvar indexBufferOffset = 0;\n\t\tvar numberOfVertices = 0;\n\n\t\t// group variables\n\t\tvar groupStart = 0;\n\n\t\t// build each side of the box geometry\n\t\tbuildPlane( 'z', 'y', 'x', - 1, - 1, depth, height, width, depthSegments, heightSegments, 0 ); // px\n\t\tbuildPlane( 'z', 'y', 'x', 1, - 1, depth, height, - width, depthSegments, heightSegments, 1 ); // nx\n\t\tbuildPlane( 'x', 'z', 'y', 1, 1, width, depth, height, widthSegments, depthSegments, 2 ); // py\n\t\tbuildPlane( 'x', 'z', 'y', 1, - 1, width, depth, - height, widthSegments, depthSegments, 3 ); // ny\n\t\tbuildPlane( 'x', 'y', 'z', 1, - 1, width, height, depth, widthSegments, heightSegments, 4 ); // pz\n\t\tbuildPlane( 'x', 'y', 'z', - 1, - 1, width, height, - depth, widthSegments, heightSegments, 5 ); // nz\n\n\t\t// build geometry\n\t\tthis.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tthis.addAttribute( 'position', new BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) );\n\n\t\t// helper functions\n\n\t\tfunction calculateVertexCount( w, h, d ) {\n\n\t\t\tvar vertices = 0;\n\n\t\t\t// calculate the amount of vertices for each side (plane)\n\t\t\tvertices += (w + 1) * (h + 1) * 2; // xy\n\t\t\tvertices += (w + 1) * (d + 1) * 2; // xz\n\t\t\tvertices += (d + 1) * (h + 1) * 2; // zy\n\n\t\t\treturn vertices;\n\n\t\t}\n\n\t\tfunction calculateIndexCount( w, h, d ) {\n\n\t\t\tvar index = 0;\n\n\t\t\t// calculate the amount of squares for each side\n\t\t\tindex += w * h * 2; // xy\n\t\t\tindex += w * d * 2; // xz\n\t\t\tindex += d * h * 2; // zy\n\n\t\t\treturn index * 6; // two triangles per square => six vertices per square\n\n\t\t}\n\n\t\tfunction buildPlane( u, v, w, udir, vdir, width, height, depth, gridX, gridY, materialIndex ) {\n\n\t\t\tvar segmentWidth\t= width / gridX;\n\t\t\tvar segmentHeight = height / gridY;\n\n\t\t\tvar widthHalf = width / 2;\n\t\t\tvar heightHalf = height / 2;\n\t\t\tvar depthHalf = depth / 2;\n\n\t\t\tvar gridX1 = gridX + 1;\n\t\t\tvar gridY1 = gridY + 1;\n\n\t\t\tvar vertexCounter = 0;\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( var iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\t\tvar y = iy * segmentHeight - heightHalf;\n\n\t\t\t\tfor ( var ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\t\tvar x = ix * segmentWidth - widthHalf;\n\n\t\t\t\t\t// set values to correct vector component\n\t\t\t\t\tvector[ u ] = x * udir;\n\t\t\t\t\tvector[ v ] = y * vdir;\n\t\t\t\t\tvector[ w ] = depthHalf;\n\n\t\t\t\t\t// now apply vector to vertex buffer\n\t\t\t\t\tvertices[ vertexBufferOffset ] = vector.x;\n\t\t\t\t\tvertices[ vertexBufferOffset + 1 ] = vector.y;\n\t\t\t\t\tvertices[ vertexBufferOffset + 2 ] = vector.z;\n\n\t\t\t\t\t// set values to correct vector component\n\t\t\t\t\tvector[ u ] = 0;\n\t\t\t\t\tvector[ v ] = 0;\n\t\t\t\t\tvector[ w ] = depth > 0 ? 1 : - 1;\n\n\t\t\t\t\t// now apply vector to normal buffer\n\t\t\t\t\tnormals[ vertexBufferOffset ] = vector.x;\n\t\t\t\t\tnormals[ vertexBufferOffset + 1 ] = vector.y;\n\t\t\t\t\tnormals[ vertexBufferOffset + 2 ] = vector.z;\n\n\t\t\t\t\t// uvs\n\t\t\t\t\tuvs[ uvBufferOffset ] = ix / gridX;\n\t\t\t\t\tuvs[ uvBufferOffset + 1 ] = 1 - ( iy / gridY );\n\n\t\t\t\t\t// update offsets and counters\n\t\t\t\t\tvertexBufferOffset += 3;\n\t\t\t\t\tuvBufferOffset += 2;\n\t\t\t\t\tvertexCounter += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// 1. you need three indices to draw a single face\n\t\t\t// 2. a single segment consists of two faces\n\t\t\t// 3. so we need to generate six (2*3) indices per segment\n\n\t\t\tfor ( iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\t\tfor ( ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\t\t// indices\n\t\t\t\t\tvar a = numberOfVertices + ix + gridX1 * iy;\n\t\t\t\t\tvar b = numberOfVertices + ix + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar c = numberOfVertices + ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\t\tvar d = numberOfVertices + ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\t\t// face one\n\t\t\t\t\tindices[ indexBufferOffset ] = a;\n\t\t\t\t\tindices[ indexBufferOffset + 1 ] = b;\n\t\t\t\t\tindices[ indexBufferOffset + 2 ] = d;\n\n\t\t\t\t\t// face two\n\t\t\t\t\tindices[ indexBufferOffset + 3 ] = b;\n\t\t\t\t\tindices[ indexBufferOffset + 4 ] = c;\n\t\t\t\t\tindices[ indexBufferOffset + 5 ] = d;\n\n\t\t\t\t\t// update offsets and counters\n\t\t\t\t\tindexBufferOffset += 6;\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\t\t\tscope.addGroup( groupStart, groupCount, materialIndex );\n\n\t\t\t// calculate new start value for groups\n\t\t\tgroupStart += groupCount;\n\n\t\t\t// update total number of vertices\n\t\t\tnumberOfVertices += vertexCounter;\n\n\t\t}\n\n\t}\n\n\tBoxBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tBoxBufferGeometry.prototype.constructor = BoxBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as\n\t */\n\n\tfunction PlaneBufferGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PlaneBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\tvar width_half = width / 2;\n\t\tvar height_half = height / 2;\n\n\t\tvar gridX = Math.floor( widthSegments ) || 1;\n\t\tvar gridY = Math.floor( heightSegments ) || 1;\n\n\t\tvar gridX1 = gridX + 1;\n\t\tvar gridY1 = gridY + 1;\n\n\t\tvar segment_width = width / gridX;\n\t\tvar segment_height = height / gridY;\n\n\t\tvar vertices = new Float32Array( gridX1 * gridY1 * 3 );\n\t\tvar normals = new Float32Array( gridX1 * gridY1 * 3 );\n\t\tvar uvs = new Float32Array( gridX1 * gridY1 * 2 );\n\n\t\tvar offset = 0;\n\t\tvar offset2 = 0;\n\n\t\tfor ( var iy = 0; iy < gridY1; iy ++ ) {\n\n\t\t\tvar y = iy * segment_height - height_half;\n\n\t\t\tfor ( var ix = 0; ix < gridX1; ix ++ ) {\n\n\t\t\t\tvar x = ix * segment_width - width_half;\n\n\t\t\t\tvertices[ offset ] = x;\n\t\t\t\tvertices[ offset + 1 ] = - y;\n\n\t\t\t\tnormals[ offset + 2 ] = 1;\n\n\t\t\t\tuvs[ offset2 ] = ix / gridX;\n\t\t\t\tuvs[ offset2 + 1 ] = 1 - ( iy / gridY );\n\n\t\t\t\toffset += 3;\n\t\t\t\toffset2 += 2;\n\n\t\t\t}\n\n\t\t}\n\n\t\toffset = 0;\n\n\t\tvar indices = new ( ( vertices.length / 3 ) > 65535 ? Uint32Array : Uint16Array )( gridX * gridY * 6 );\n\n\t\tfor ( var iy = 0; iy < gridY; iy ++ ) {\n\n\t\t\tfor ( var ix = 0; ix < gridX; ix ++ ) {\n\n\t\t\t\tvar a = ix + gridX1 * iy;\n\t\t\t\tvar b = ix + gridX1 * ( iy + 1 );\n\t\t\t\tvar c = ( ix + 1 ) + gridX1 * ( iy + 1 );\n\t\t\t\tvar d = ( ix + 1 ) + gridX1 * iy;\n\n\t\t\t\tindices[ offset ] = a;\n\t\t\t\tindices[ offset + 1 ] = b;\n\t\t\t\tindices[ offset + 2 ] = d;\n\n\t\t\t\tindices[ offset + 3 ] = b;\n\t\t\t\tindices[ offset + 4 ] = c;\n\t\t\t\tindices[ offset + 5 ] = d;\n\n\t\t\t\toffset += 6;\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tthis.addAttribute( 'position', new BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tPlaneBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPlaneBufferGeometry.prototype.constructor = PlaneBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction Camera() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Camera';\n\n\t\tthis.matrixWorldInverse = new Matrix4();\n\t\tthis.projectionMatrix = new Matrix4();\n\n\t}\n\n\tCamera.prototype = Object.create( Object3D.prototype );\n\tCamera.prototype.constructor = Camera;\n\n\tCamera.prototype.isCamera = true;\n\n\tCamera.prototype.getWorldDirection = function () {\n\n\t\tvar quaternion = new Quaternion();\n\n\t\treturn function getWorldDirection( optionalTarget ) {\n\n\t\t\tvar result = optionalTarget || new Vector3();\n\n\t\t\tthis.getWorldQuaternion( quaternion );\n\n\t\t\treturn result.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t};\n\n\t}();\n\n\tCamera.prototype.lookAt = function () {\n\n\t\t// This routine does not support cameras with rotated and/or translated parent(s)\n\n\t\tvar m1 = new Matrix4();\n\n\t\treturn function lookAt( vector ) {\n\n\t\t\tm1.lookAt( this.position, vector, this.up );\n\n\t\t\tthis.quaternion.setFromRotationMatrix( m1 );\n\n\t\t};\n\n\t}();\n\n\tCamera.prototype.clone = function () {\n\n\t\treturn new this.constructor().copy( this );\n\n\t};\n\n\tCamera.prototype.copy = function ( source ) {\n\n\t\tObject3D.prototype.copy.call( this, source );\n\n\t\tthis.matrixWorldInverse.copy( source.matrixWorldInverse );\n\t\tthis.projectionMatrix.copy( source.projectionMatrix );\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author greggman / http://games.greggman.com/\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author tschw\n\t */\n\n\tfunction PerspectiveCamera( fov, aspect, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'PerspectiveCamera';\n\n\t\tthis.fov = fov !== undefined ? fov : 50;\n\t\tthis.zoom = 1;\n\n\t\tthis.near = near !== undefined ? near : 0.1;\n\t\tthis.far = far !== undefined ? far : 2000;\n\t\tthis.focus = 10;\n\n\t\tthis.aspect = aspect !== undefined ? aspect : 1;\n\t\tthis.view = null;\n\n\t\tthis.filmGauge = 35;\t// width of the film (default in millimeters)\n\t\tthis.filmOffset = 0;\t// horizontal film offset (same unit as gauge)\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tPerspectiveCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: PerspectiveCamera,\n\n\t\tisPerspectiveCamera: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCamera.prototype.copy.call( this, source );\n\n\t\t\tthis.fov = source.fov;\n\t\t\tthis.zoom = source.zoom;\n\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\t\t\tthis.focus = source.focus;\n\n\t\t\tthis.aspect = source.aspect;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\tthis.filmGauge = source.filmGauge;\n\t\t\tthis.filmOffset = source.filmOffset;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t/**\n\t\t * Sets the FOV by focal length in respect to the current .filmGauge.\n\t\t *\n\t\t * The default film gauge is 35, so that the focal length can be specified for\n\t\t * a 35mm (full frame) camera.\n\t\t *\n\t\t * Values for focal length and film gauge must have the same unit.\n\t\t */\n\t\tsetFocalLength: function ( focalLength ) {\n\n\t\t\t// see http://www.bobatkins.com/photography/technical/field_of_view.html\n\t\t\tvar vExtentSlope = 0.5 * this.getFilmHeight() / focalLength;\n\n\t\t\tthis.fov = _Math.RAD2DEG * 2 * Math.atan( vExtentSlope );\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\t/**\n\t\t * Calculates the focal length from the current .fov and .filmGauge.\n\t\t */\n\t\tgetFocalLength: function () {\n\n\t\t\tvar vExtentSlope = Math.tan( _Math.DEG2RAD * 0.5 * this.fov );\n\n\t\t\treturn 0.5 * this.getFilmHeight() / vExtentSlope;\n\n\t\t},\n\n\t\tgetEffectiveFOV: function () {\n\n\t\t\treturn _Math.RAD2DEG * 2 * Math.atan(\n\t\t\t\t\tMath.tan( _Math.DEG2RAD * 0.5 * this.fov ) / this.zoom );\n\n\t\t},\n\n\t\tgetFilmWidth: function () {\n\n\t\t\t// film not completely covered in portrait format (aspect < 1)\n\t\t\treturn this.filmGauge * Math.min( this.aspect, 1 );\n\n\t\t},\n\n\t\tgetFilmHeight: function () {\n\n\t\t\t// film not completely covered in landscape format (aspect > 1)\n\t\t\treturn this.filmGauge / Math.max( this.aspect, 1 );\n\n\t\t},\n\n\t\t/**\n\t\t * Sets an offset in a larger frustum. This is useful for multi-window or\n\t\t * multi-monitor/multi-machine setups.\n\t\t *\n\t\t * For example, if you have 3x2 monitors and each monitor is 1920x1080 and\n\t\t * the monitors are in grid like this\n\t\t *\n\t\t * +---+---+---+\n\t\t * | A | B | C |\n\t\t * +---+---+---+\n\t\t * | D | E | F |\n\t\t * +---+---+---+\n\t\t *\n\t\t * then for each monitor you would call it like this\n\t\t *\n\t\t * var w = 1920;\n\t\t * var h = 1080;\n\t\t * var fullWidth = w * 3;\n\t\t * var fullHeight = h * 2;\n\t\t *\n\t\t * --A--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );\n\t\t * --B--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );\n\t\t * --C--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );\n\t\t * --D--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );\n\t\t * --E--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );\n\t\t * --F--\n\t\t * camera.setOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );\n\t\t *\n\t\t * Note there is no reason monitors have to be the same size or in a grid.\n\t\t */\n\t\tsetViewOffset: function ( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tthis.aspect = fullWidth / fullHeight;\n\n\t\t\tthis.view = {\n\t\t\t\tfullWidth: fullWidth,\n\t\t\t\tfullHeight: fullHeight,\n\t\t\t\toffsetX: x,\n\t\t\t\toffsetY: y,\n\t\t\t\twidth: width,\n\t\t\t\theight: height\n\t\t\t};\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function() {\n\n\t\t\tthis.view = null;\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar near = this.near,\n\t\t\t\ttop = near * Math.tan(\n\t\t\t\t\t\t_Math.DEG2RAD * 0.5 * this.fov ) / this.zoom,\n\t\t\t\theight = 2 * top,\n\t\t\t\twidth = this.aspect * height,\n\t\t\t\tleft = - 0.5 * width,\n\t\t\t\tview = this.view;\n\n\t\t\tif ( view !== null ) {\n\n\t\t\t\tvar fullWidth = view.fullWidth,\n\t\t\t\t\tfullHeight = view.fullHeight;\n\n\t\t\t\tleft += view.offsetX * width / fullWidth;\n\t\t\t\ttop -= view.offsetY * height / fullHeight;\n\t\t\t\twidth *= view.width / fullWidth;\n\t\t\t\theight *= view.height / fullHeight;\n\n\t\t\t}\n\n\t\t\tvar skew = this.filmOffset;\n\t\t\tif ( skew !== 0 ) left += near * skew / this.getFilmWidth();\n\n\t\t\tthis.projectionMatrix.makeFrustum(\n\t\t\t\t\tleft, left + width, top - height, top, near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.fov = this.fov;\n\t\t\tdata.object.zoom = this.zoom;\n\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\t\t\tdata.object.focus = this.focus;\n\n\t\t\tdata.object.aspect = this.aspect;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\tdata.object.filmGauge = this.filmGauge;\n\t\t\tdata.object.filmOffset = this.filmOffset;\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author arose / http://github.com/arose\n\t */\n\n\tfunction OrthographicCamera( left, right, top, bottom, near, far ) {\n\n\t\tCamera.call( this );\n\n\t\tthis.type = 'OrthographicCamera';\n\n\t\tthis.zoom = 1;\n\t\tthis.view = null;\n\n\t\tthis.left = left;\n\t\tthis.right = right;\n\t\tthis.top = top;\n\t\tthis.bottom = bottom;\n\n\t\tthis.near = ( near !== undefined ) ? near : 0.1;\n\t\tthis.far = ( far !== undefined ) ? far : 2000;\n\n\t\tthis.updateProjectionMatrix();\n\n\t}\n\n\tOrthographicCamera.prototype = Object.assign( Object.create( Camera.prototype ), {\n\n\t\tconstructor: OrthographicCamera,\n\n\t\tisOrthographicCamera: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tCamera.prototype.copy.call( this, source );\n\n\t\t\tthis.left = source.left;\n\t\t\tthis.right = source.right;\n\t\t\tthis.top = source.top;\n\t\t\tthis.bottom = source.bottom;\n\t\t\tthis.near = source.near;\n\t\t\tthis.far = source.far;\n\n\t\t\tthis.zoom = source.zoom;\n\t\t\tthis.view = source.view === null ? null : Object.assign( {}, source.view );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetViewOffset: function( fullWidth, fullHeight, x, y, width, height ) {\n\n\t\t\tthis.view = {\n\t\t\t\tfullWidth: fullWidth,\n\t\t\t\tfullHeight: fullHeight,\n\t\t\t\toffsetX: x,\n\t\t\t\toffsetY: y,\n\t\t\t\twidth: width,\n\t\t\t\theight: height\n\t\t\t};\n\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tclearViewOffset: function() {\n\n\t\t\tthis.view = null;\n\t\t\tthis.updateProjectionMatrix();\n\n\t\t},\n\n\t\tupdateProjectionMatrix: function () {\n\n\t\t\tvar dx = ( this.right - this.left ) / ( 2 * this.zoom );\n\t\t\tvar dy = ( this.top - this.bottom ) / ( 2 * this.zoom );\n\t\t\tvar cx = ( this.right + this.left ) / 2;\n\t\t\tvar cy = ( this.top + this.bottom ) / 2;\n\n\t\t\tvar left = cx - dx;\n\t\t\tvar right = cx + dx;\n\t\t\tvar top = cy + dy;\n\t\t\tvar bottom = cy - dy;\n\n\t\t\tif ( this.view !== null ) {\n\n\t\t\t\tvar zoomW = this.zoom / ( this.view.width / this.view.fullWidth );\n\t\t\t\tvar zoomH = this.zoom / ( this.view.height / this.view.fullHeight );\n\t\t\t\tvar scaleW = ( this.right - this.left ) / this.view.width;\n\t\t\t\tvar scaleH = ( this.top - this.bottom ) / this.view.height;\n\n\t\t\t\tleft += scaleW * ( this.view.offsetX / zoomW );\n\t\t\t\tright = left + scaleW * ( this.view.width / zoomW );\n\t\t\t\ttop -= scaleH * ( this.view.offsetY / zoomH );\n\t\t\t\tbottom = top - scaleH * ( this.view.height / zoomH );\n\n\t\t\t}\n\n\t\t\tthis.projectionMatrix.makeOrthographic( left, right, top, bottom, this.near, this.far );\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.zoom = this.zoom;\n\t\t\tdata.object.left = this.left;\n\t\t\tdata.object.right = this.right;\n\t\t\tdata.object.top = this.top;\n\t\t\tdata.object.bottom = this.bottom;\n\t\t\tdata.object.near = this.near;\n\t\t\tdata.object.far = this.far;\n\n\t\t\tif ( this.view !== null ) data.object.view = Object.assign( {}, this.view );\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLIndexedBufferRenderer( gl, extensions, infoRender ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tvar type, size;\n\n\t\tfunction setIndex( index ) {\n\n\t\t\tif ( index.array instanceof Uint32Array && extensions.get( 'OES_element_index_uint' ) ) {\n\n\t\t\t\ttype = gl.UNSIGNED_INT;\n\t\t\t\tsize = 4;\n\n\t\t\t} else {\n\n\t\t\t\ttype = gl.UNSIGNED_SHORT;\n\t\t\t\tsize = 2;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawElements( mode, count, type, start * size );\n\n\t\t\tinfoRender.calls ++;\n\t\t\tinfoRender.vertices += count;\n\n\t\t\tif ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;\n\n\t\t}\n\n\t\tfunction renderInstances( geometry, start, count ) {\n\n\t\t\tvar extension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\tif ( extension === null ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\textension.drawElementsInstancedANGLE( mode, count, type, start * size, geometry.maxInstancedCount );\n\n\t\t\tinfoRender.calls ++;\n\t\t\tinfoRender.vertices += count * geometry.maxInstancedCount;\n\n\t\t\tif ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tsetMode: setMode,\n\t\t\tsetIndex: setIndex,\n\t\t\trender: render,\n\t\t\trenderInstances: renderInstances\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLBufferRenderer( gl, extensions, infoRender ) {\n\n\t\tvar mode;\n\n\t\tfunction setMode( value ) {\n\n\t\t\tmode = value;\n\n\t\t}\n\n\t\tfunction render( start, count ) {\n\n\t\t\tgl.drawArrays( mode, start, count );\n\n\t\t\tinfoRender.calls ++;\n\t\t\tinfoRender.vertices += count;\n\n\t\t\tif ( mode === gl.TRIANGLES ) infoRender.faces += count / 3;\n\n\t\t}\n\n\t\tfunction renderInstances( geometry ) {\n\n\t\t\tvar extension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\tif ( extension === null ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar position = geometry.attributes.position;\n\n\t\t\tvar count = 0;\n\n\t\t\tif ( (position && position.isInterleavedBufferAttribute) ) {\n\n\t\t\t\tcount = position.data.count;\n\n\t\t\t\textension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount );\n\n\t\t\t} else {\n\n\t\t\t\tcount = position.count;\n\n\t\t\t\textension.drawArraysInstancedANGLE( mode, 0, count, geometry.maxInstancedCount );\n\n\t\t\t}\n\n\t\t\tinfoRender.calls ++;\n\t\t\tinfoRender.vertices += count * geometry.maxInstancedCount;\n\n\t\t\tif ( mode === gl.TRIANGLES ) infoRender.faces += geometry.maxInstancedCount * count / 3;\n\n\t\t}\n\n\t\treturn {\n\t\t\tsetMode: setMode,\n\t\t\trender: render,\n\t\t\trenderInstances: renderInstances\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLLights() {\n\n\t\tvar lights = {};\n\n\t\treturn {\n\n\t\t\tget: function ( light ) {\n\n\t\t\t\tif ( lights[ light.id ] !== undefined ) {\n\n\t\t\t\t\treturn lights[ light.id ];\n\n\t\t\t\t}\n\n\t\t\t\tvar uniforms;\n\n\t\t\t\tswitch ( light.type ) {\n\n\t\t\t\t\tcase 'DirectionalLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'SpotLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tconeCos: 0,\n\t\t\t\t\t\t\tpenumbraCos: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PointLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tposition: new Vector3(),\n\t\t\t\t\t\t\tcolor: new Color(),\n\t\t\t\t\t\t\tdistance: 0,\n\t\t\t\t\t\t\tdecay: 0,\n\n\t\t\t\t\t\t\tshadow: false,\n\t\t\t\t\t\t\tshadowBias: 0,\n\t\t\t\t\t\t\tshadowRadius: 1,\n\t\t\t\t\t\t\tshadowMapSize: new Vector2()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'HemisphereLight':\n\t\t\t\t\t\tuniforms = {\n\t\t\t\t\t\t\tdirection: new Vector3(),\n\t\t\t\t\t\t\tskyColor: new Color(),\n\t\t\t\t\t\t\tgroundColor: new Color()\n\t\t\t\t\t\t};\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tlights[ light.id ] = uniforms;\n\n\t\t\t\treturn uniforms;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction addLineNumbers( string ) {\n\n\t\tvar lines = string.split( '\\n' );\n\n\t\tfor ( var i = 0; i < lines.length; i ++ ) {\n\n\t\t\tlines[ i ] = ( i + 1 ) + ': ' + lines[ i ];\n\n\t\t}\n\n\t\treturn lines.join( '\\n' );\n\n\t}\n\n\tfunction WebGLShader( gl, type, string ) {\n\n\t\tvar shader = gl.createShader( type );\n\n\t\tgl.shaderSource( shader, string );\n\t\tgl.compileShader( shader );\n\n\t\tif ( gl.getShaderParameter( shader, gl.COMPILE_STATUS ) === false ) {\n\n\t\t\tconsole.error( 'THREE.WebGLShader: Shader couldn\\'t compile.' );\n\n\t\t}\n\n\t\tif ( gl.getShaderInfoLog( shader ) !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLShader: gl.getShaderInfoLog()', type === gl.VERTEX_SHADER ? 'vertex' : 'fragment', gl.getShaderInfoLog( shader ), addLineNumbers( string ) );\n\n\t\t}\n\n\t\t// --enable-privileged-webgl-extension\n\t\t// console.log( type, gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );\n\n\t\treturn shader;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar programIdCount = 0;\n\n\tfunction getEncodingComponents( encoding ) {\n\n\t\tswitch ( encoding ) {\n\n\t\t\tcase LinearEncoding:\n\t\t\t\treturn [ 'Linear','( value )' ];\n\t\t\tcase sRGBEncoding:\n\t\t\t\treturn [ 'sRGB','( value )' ];\n\t\t\tcase RGBEEncoding:\n\t\t\t\treturn [ 'RGBE','( value )' ];\n\t\t\tcase RGBM7Encoding:\n\t\t\t\treturn [ 'RGBM','( value, 7.0 )' ];\n\t\t\tcase RGBM16Encoding:\n\t\t\t\treturn [ 'RGBM','( value, 16.0 )' ];\n\t\t\tcase RGBDEncoding:\n\t\t\t\treturn [ 'RGBD','( value, 256.0 )' ];\n\t\t\tcase GammaEncoding:\n\t\t\t\treturn [ 'Gamma','( value, float( GAMMA_FACTOR ) )' ];\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported encoding: ' + encoding );\n\n\t\t}\n\n\t}\n\n\tfunction getTexelDecodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn \"vec4 \" + functionName + \"( vec4 value ) { return \" + components[ 0 ] + \"ToLinear\" + components[ 1 ] + \"; }\";\n\n\t}\n\n\tfunction getTexelEncodingFunction( functionName, encoding ) {\n\n\t\tvar components = getEncodingComponents( encoding );\n\t\treturn \"vec4 \" + functionName + \"( vec4 value ) { return LinearTo\" + components[ 0 ] + components[ 1 ] + \"; }\";\n\n\t}\n\n\tfunction getToneMappingFunction( functionName, toneMapping ) {\n\n\t\tvar toneMappingName;\n\n\t\tswitch ( toneMapping ) {\n\n\t\t\tcase LinearToneMapping:\n\t\t\t\ttoneMappingName = \"Linear\";\n\t\t\t\tbreak;\n\n\t\t\tcase ReinhardToneMapping:\n\t\t\t\ttoneMappingName = \"Reinhard\";\n\t\t\t\tbreak;\n\n\t\t\tcase Uncharted2ToneMapping:\n\t\t\t\ttoneMappingName = \"Uncharted2\";\n\t\t\t\tbreak;\n\n\t\t\tcase CineonToneMapping:\n\t\t\t\ttoneMappingName = \"OptimizedCineon\";\n\t\t\t\tbreak;\n\n\t\t\tdefault:\n\t\t\t\tthrow new Error( 'unsupported toneMapping: ' + toneMapping );\n\n\t\t}\n\n\t\treturn \"vec3 \" + functionName + \"( vec3 color ) { return \" + toneMappingName + \"ToneMapping( color ); }\";\n\n\t}\n\n\tfunction generateExtensions( extensions, parameters, rendererExtensions ) {\n\n\t\textensions = extensions || {};\n\n\t\tvar chunks = [\n\t\t\t( extensions.derivatives || parameters.envMapCubeUV || parameters.bumpMap || parameters.normalMap || parameters.flatShading ) ? '#extension GL_OES_standard_derivatives : enable' : '',\n\t\t\t( extensions.fragDepth || parameters.logarithmicDepthBuffer ) && rendererExtensions.get( 'EXT_frag_depth' ) ? '#extension GL_EXT_frag_depth : enable' : '',\n\t\t\t( extensions.drawBuffers ) && rendererExtensions.get( 'WEBGL_draw_buffers' ) ? '#extension GL_EXT_draw_buffers : require' : '',\n\t\t\t( extensions.shaderTextureLOD || parameters.envMap ) && rendererExtensions.get( 'EXT_shader_texture_lod' ) ? '#extension GL_EXT_shader_texture_lod : enable' : '',\n\t\t];\n\n\t\treturn chunks.filter( filterEmptyLine ).join( '\\n' );\n\n\t}\n\n\tfunction generateDefines( defines ) {\n\n\t\tvar chunks = [];\n\n\t\tfor ( var name in defines ) {\n\n\t\t\tvar value = defines[ name ];\n\n\t\t\tif ( value === false ) continue;\n\n\t\t\tchunks.push( '#define ' + name + ' ' + value );\n\n\t\t}\n\n\t\treturn chunks.join( '\\n' );\n\n\t}\n\n\tfunction fetchAttributeLocations( gl, program, identifiers ) {\n\n\t\tvar attributes = {};\n\n\t\tvar n = gl.getProgramParameter( program, gl.ACTIVE_ATTRIBUTES );\n\n\t\tfor ( var i = 0; i < n; i ++ ) {\n\n\t\t\tvar info = gl.getActiveAttrib( program, i );\n\t\t\tvar name = info.name;\n\n\t\t\t// console.log(\"THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:\", name, i );\n\n\t\t\tattributes[ name ] = gl.getAttribLocation( program, name );\n\n\t\t}\n\n\t\treturn attributes;\n\n\t}\n\n\tfunction filterEmptyLine( string ) {\n\n\t\treturn string !== '';\n\n\t}\n\n\tfunction replaceLightNums( string, parameters ) {\n\n\t\treturn string\n\t\t\t.replace( /NUM_DIR_LIGHTS/g, parameters.numDirLights )\n\t\t\t.replace( /NUM_SPOT_LIGHTS/g, parameters.numSpotLights )\n\t\t\t.replace( /NUM_POINT_LIGHTS/g, parameters.numPointLights )\n\t\t\t.replace( /NUM_HEMI_LIGHTS/g, parameters.numHemiLights );\n\n\t}\n\n\tfunction parseIncludes( string ) {\n\n\t\tvar pattern = /#include +<([\\w\\d.]+)>/g;\n\n\t\tfunction replace( match, include ) {\n\n\t\t\tvar replace = ShaderChunk[ include ];\n\n\t\t\tif ( replace === undefined ) {\n\n\t\t\t\tthrow new Error( 'Can not resolve #include <' + include + '>' );\n\n\t\t\t}\n\n\t\t\treturn parseIncludes( replace );\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction unrollLoops( string ) {\n\n\t\tvar pattern = /for \\( int i \\= (\\d+)\\; i < (\\d+)\\; i \\+\\+ \\) \\{([\\s\\S]+?)(?=\\})\\}/g;\n\n\t\tfunction replace( match, start, end, snippet ) {\n\n\t\t\tvar unroll = '';\n\n\t\t\tfor ( var i = parseInt( start ); i < parseInt( end ); i ++ ) {\n\n\t\t\t\tunroll += snippet.replace( /\\[ i \\]/g, '[ ' + i + ' ]' );\n\n\t\t\t}\n\n\t\t\treturn unroll;\n\n\t\t}\n\n\t\treturn string.replace( pattern, replace );\n\n\t}\n\n\tfunction WebGLProgram( renderer, code, material, parameters ) {\n\n\t\tvar gl = renderer.context;\n\n\t\tvar extensions = material.extensions;\n\t\tvar defines = material.defines;\n\n\t\tvar vertexShader = material.__webglShader.vertexShader;\n\t\tvar fragmentShader = material.__webglShader.fragmentShader;\n\n\t\tvar shadowMapTypeDefine = 'SHADOWMAP_TYPE_BASIC';\n\n\t\tif ( parameters.shadowMapType === PCFShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF';\n\n\t\t} else if ( parameters.shadowMapType === PCFSoftShadowMap ) {\n\n\t\t\tshadowMapTypeDefine = 'SHADOWMAP_TYPE_PCF_SOFT';\n\n\t\t}\n\n\t\tvar envMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\tvar envMapModeDefine = 'ENVMAP_MODE_REFLECTION';\n\t\tvar envMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\n\t\tif ( parameters.envMap ) {\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeReflectionMapping:\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase CubeUVReflectionMapping:\n\t\t\t\tcase CubeUVRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_CUBE_UV';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase EquirectangularReflectionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_EQUIREC';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase SphericalReflectionMapping:\n\t\t\t\t\tenvMapTypeDefine = 'ENVMAP_TYPE_SPHERE';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.envMap.mapping ) {\n\n\t\t\t\tcase CubeRefractionMapping:\n\t\t\t\tcase EquirectangularRefractionMapping:\n\t\t\t\t\tenvMapModeDefine = 'ENVMAP_MODE_REFRACTION';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tswitch ( material.combine ) {\n\n\t\t\t\tcase MultiplyOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MULTIPLY';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase MixOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_MIX';\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase AddOperation:\n\t\t\t\t\tenvMapBlendingDefine = 'ENVMAP_BLENDING_ADD';\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar gammaFactorDefine = ( renderer.gammaFactor > 0 ) ? renderer.gammaFactor : 1.0;\n\n\t\t// console.log( 'building new program ' );\n\n\t\t//\n\n\t\tvar customExtensions = generateExtensions( extensions, parameters, renderer.extensions );\n\n\t\tvar customDefines = generateDefines( defines );\n\n\t\t//\n\n\t\tvar program = gl.createProgram();\n\n\t\tvar prefixVertex, prefixFragment;\n\n\t\tif ( material.isRawShaderMaterial ) {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\t\t\t\tcustomDefines,\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t} else {\n\n\t\t\tprefixVertex = [\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + material.__webglShader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.supportsVertexTextures ? '#define VERTEX_TEXTURES' : '',\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t'#define MAX_BONES ' + parameters.maxBones,\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\tparameters.displacementMap && parameters.supportsVertexTextures ? '#define USE_DISPLACEMENTMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.skinning ? '#define USE_SKINNING' : '',\n\t\t\t\tparameters.useVertexTexture ? '#define BONE_TEXTURE' : '',\n\n\t\t\t\tparameters.morphTargets ? '#define USE_MORPHTARGETS' : '',\n\t\t\t\tparameters.morphNormals && parameters.flatShading === false ? '#define USE_MORPHNORMALS' : '',\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\t'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.sizeAttenuation ? '#define USE_SIZEATTENUATION' : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\t'uniform mat4 modelMatrix;',\n\t\t\t\t'uniform mat4 modelViewMatrix;',\n\t\t\t\t'uniform mat4 projectionMatrix;',\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform mat3 normalMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t'attribute vec3 position;',\n\t\t\t\t'attribute vec3 normal;',\n\t\t\t\t'attribute vec2 uv;',\n\n\t\t\t\t'#ifdef USE_COLOR',\n\n\t\t\t\t'\tattribute vec3 color;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_MORPHTARGETS',\n\n\t\t\t\t'\tattribute vec3 morphTarget0;',\n\t\t\t\t'\tattribute vec3 morphTarget1;',\n\t\t\t\t'\tattribute vec3 morphTarget2;',\n\t\t\t\t'\tattribute vec3 morphTarget3;',\n\n\t\t\t\t'\t#ifdef USE_MORPHNORMALS',\n\n\t\t\t\t'\t\tattribute vec3 morphNormal0;',\n\t\t\t\t'\t\tattribute vec3 morphNormal1;',\n\t\t\t\t'\t\tattribute vec3 morphNormal2;',\n\t\t\t\t'\t\tattribute vec3 morphNormal3;',\n\n\t\t\t\t'\t#else',\n\n\t\t\t\t'\t\tattribute vec3 morphTarget4;',\n\t\t\t\t'\t\tattribute vec3 morphTarget5;',\n\t\t\t\t'\t\tattribute vec3 morphTarget6;',\n\t\t\t\t'\t\tattribute vec3 morphTarget7;',\n\n\t\t\t\t'\t#endif',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'#ifdef USE_SKINNING',\n\n\t\t\t\t'\tattribute vec4 skinIndex;',\n\t\t\t\t'\tattribute vec4 skinWeight;',\n\n\t\t\t\t'#endif',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t\tprefixFragment = [\n\n\t\t\t\tcustomExtensions,\n\n\t\t\t\t'precision ' + parameters.precision + ' float;',\n\t\t\t\t'precision ' + parameters.precision + ' int;',\n\n\t\t\t\t'#define SHADER_NAME ' + material.__webglShader.name,\n\n\t\t\t\tcustomDefines,\n\n\t\t\t\tparameters.alphaTest ? '#define ALPHATEST ' + parameters.alphaTest : '',\n\n\t\t\t\t'#define GAMMA_FACTOR ' + gammaFactorDefine,\n\n\t\t\t\t( parameters.useFog && parameters.fog ) ? '#define USE_FOG' : '',\n\t\t\t\t( parameters.useFog && parameters.fogExp ) ? '#define FOG_EXP2' : '',\n\n\t\t\t\tparameters.map ? '#define USE_MAP' : '',\n\t\t\t\tparameters.envMap ? '#define USE_ENVMAP' : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapTypeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapModeDefine : '',\n\t\t\t\tparameters.envMap ? '#define ' + envMapBlendingDefine : '',\n\t\t\t\tparameters.lightMap ? '#define USE_LIGHTMAP' : '',\n\t\t\t\tparameters.aoMap ? '#define USE_AOMAP' : '',\n\t\t\t\tparameters.emissiveMap ? '#define USE_EMISSIVEMAP' : '',\n\t\t\t\tparameters.bumpMap ? '#define USE_BUMPMAP' : '',\n\t\t\t\tparameters.normalMap ? '#define USE_NORMALMAP' : '',\n\t\t\t\tparameters.specularMap ? '#define USE_SPECULARMAP' : '',\n\t\t\t\tparameters.roughnessMap ? '#define USE_ROUGHNESSMAP' : '',\n\t\t\t\tparameters.metalnessMap ? '#define USE_METALNESSMAP' : '',\n\t\t\t\tparameters.alphaMap ? '#define USE_ALPHAMAP' : '',\n\t\t\t\tparameters.vertexColors ? '#define USE_COLOR' : '',\n\n\t\t\t\tparameters.flatShading ? '#define FLAT_SHADED' : '',\n\n\t\t\t\tparameters.doubleSided ? '#define DOUBLE_SIDED' : '',\n\t\t\t\tparameters.flipSided ? '#define FLIP_SIDED' : '',\n\n\t\t\t\t'#define NUM_CLIPPING_PLANES ' + parameters.numClippingPlanes,\n\t\t\t\t'#define UNION_CLIPPING_PLANES ' + (parameters.numClippingPlanes - parameters.numClipIntersection),\n\n\t\t\t\tparameters.shadowMapEnabled ? '#define USE_SHADOWMAP' : '',\n\t\t\t\tparameters.shadowMapEnabled ? '#define ' + shadowMapTypeDefine : '',\n\n\t\t\t\tparameters.premultipliedAlpha ? \"#define PREMULTIPLIED_ALPHA\" : '',\n\n\t\t\t\tparameters.physicallyCorrectLights ? \"#define PHYSICALLY_CORRECT_LIGHTS\" : '',\n\n\t\t\t\tparameters.logarithmicDepthBuffer ? '#define USE_LOGDEPTHBUF' : '',\n\t\t\t\tparameters.logarithmicDepthBuffer && renderer.extensions.get( 'EXT_frag_depth' ) ? '#define USE_LOGDEPTHBUF_EXT' : '',\n\n\t\t\t\tparameters.envMap && renderer.extensions.get( 'EXT_shader_texture_lod' ) ? '#define TEXTURE_LOD_EXT' : '',\n\n\t\t\t\t'uniform mat4 viewMatrix;',\n\t\t\t\t'uniform vec3 cameraPosition;',\n\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? \"#define TONE_MAPPING\" : '',\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? ShaderChunk[ 'tonemapping_pars_fragment' ] : '', // this code is required here because it is used by the toneMapping() function defined below\n\t\t\t\t( parameters.toneMapping !== NoToneMapping ) ? getToneMappingFunction( \"toneMapping\", parameters.toneMapping ) : '',\n\n\t\t\t\t( parameters.outputEncoding || parameters.mapEncoding || parameters.envMapEncoding || parameters.emissiveMapEncoding ) ? ShaderChunk[ 'encodings_pars_fragment' ] : '', // this code is required here because it is used by the various encoding/decoding function defined below\n\t\t\t\tparameters.mapEncoding ? getTexelDecodingFunction( 'mapTexelToLinear', parameters.mapEncoding ) : '',\n\t\t\t\tparameters.envMapEncoding ? getTexelDecodingFunction( 'envMapTexelToLinear', parameters.envMapEncoding ) : '',\n\t\t\t\tparameters.emissiveMapEncoding ? getTexelDecodingFunction( 'emissiveMapTexelToLinear', parameters.emissiveMapEncoding ) : '',\n\t\t\t\tparameters.outputEncoding ? getTexelEncodingFunction( \"linearToOutputTexel\", parameters.outputEncoding ) : '',\n\n\t\t\t\tparameters.depthPacking ? \"#define DEPTH_PACKING \" + material.depthPacking : '',\n\n\t\t\t\t'\\n'\n\n\t\t\t].filter( filterEmptyLine ).join( '\\n' );\n\n\t\t}\n\n\t\tvertexShader = parseIncludes( vertexShader, parameters );\n\t\tvertexShader = replaceLightNums( vertexShader, parameters );\n\n\t\tfragmentShader = parseIncludes( fragmentShader, parameters );\n\t\tfragmentShader = replaceLightNums( fragmentShader, parameters );\n\n\t\tif ( ! material.isShaderMaterial ) {\n\n\t\t\tvertexShader = unrollLoops( vertexShader );\n\t\t\tfragmentShader = unrollLoops( fragmentShader );\n\n\t\t}\n\n\t\tvar vertexGlsl = prefixVertex + vertexShader;\n\t\tvar fragmentGlsl = prefixFragment + fragmentShader;\n\n\t\t// console.log( '*VERTEX*', vertexGlsl );\n\t\t// console.log( '*FRAGMENT*', fragmentGlsl );\n\n\t\tvar glVertexShader = WebGLShader( gl, gl.VERTEX_SHADER, vertexGlsl );\n\t\tvar glFragmentShader = WebGLShader( gl, gl.FRAGMENT_SHADER, fragmentGlsl );\n\n\t\tgl.attachShader( program, glVertexShader );\n\t\tgl.attachShader( program, glFragmentShader );\n\n\t\t// Force a particular attribute to index 0.\n\n\t\tif ( material.index0AttributeName !== undefined ) {\n\n\t\t\tgl.bindAttribLocation( program, 0, material.index0AttributeName );\n\n\t\t} else if ( parameters.morphTargets === true ) {\n\n\t\t\t// programs with morphTargets displace position out of attribute 0\n\t\t\tgl.bindAttribLocation( program, 0, 'position' );\n\n\t\t}\n\n\t\tgl.linkProgram( program );\n\n\t\tvar programLog = gl.getProgramInfoLog( program );\n\t\tvar vertexLog = gl.getShaderInfoLog( glVertexShader );\n\t\tvar fragmentLog = gl.getShaderInfoLog( glFragmentShader );\n\n\t\tvar runnable = true;\n\t\tvar haveDiagnostics = true;\n\n\t\t// console.log( '**VERTEX**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glVertexShader ) );\n\t\t// console.log( '**FRAGMENT**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( glFragmentShader ) );\n\n\t\tif ( gl.getProgramParameter( program, gl.LINK_STATUS ) === false ) {\n\n\t\t\trunnable = false;\n\n\t\t\tconsole.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.VALIDATE_STATUS', gl.getProgramParameter( program, gl.VALIDATE_STATUS ), 'gl.getProgramInfoLog', programLog, vertexLog, fragmentLog );\n\n\t\t} else if ( programLog !== '' ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLProgram: gl.getProgramInfoLog()', programLog );\n\n\t\t} else if ( vertexLog === '' || fragmentLog === '' ) {\n\n\t\t\thaveDiagnostics = false;\n\n\t\t}\n\n\t\tif ( haveDiagnostics ) {\n\n\t\t\tthis.diagnostics = {\n\n\t\t\t\trunnable: runnable,\n\t\t\t\tmaterial: material,\n\n\t\t\t\tprogramLog: programLog,\n\n\t\t\t\tvertexShader: {\n\n\t\t\t\t\tlog: vertexLog,\n\t\t\t\t\tprefix: prefixVertex\n\n\t\t\t\t},\n\n\t\t\t\tfragmentShader: {\n\n\t\t\t\t\tlog: fragmentLog,\n\t\t\t\t\tprefix: prefixFragment\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t// clean up\n\n\t\tgl.deleteShader( glVertexShader );\n\t\tgl.deleteShader( glFragmentShader );\n\n\t\t// set up caching for uniform locations\n\n\t\tvar cachedUniforms;\n\n\t\tthis.getUniforms = function() {\n\n\t\t\tif ( cachedUniforms === undefined ) {\n\n\t\t\t\tcachedUniforms =\n\t\t\t\t\t\tnew WebGLUniforms( gl, program, renderer );\n\n\t\t\t}\n\n\t\t\treturn cachedUniforms;\n\n\t\t};\n\n\t\t// set up caching for attribute locations\n\n\t\tvar cachedAttributes;\n\n\t\tthis.getAttributes = function() {\n\n\t\t\tif ( cachedAttributes === undefined ) {\n\n\t\t\t\tcachedAttributes = fetchAttributeLocations( gl, program );\n\n\t\t\t}\n\n\t\t\treturn cachedAttributes;\n\n\t\t};\n\n\t\t// free resource\n\n\t\tthis.destroy = function() {\n\n\t\t\tgl.deleteProgram( program );\n\t\t\tthis.program = undefined;\n\n\t\t};\n\n\t\t// DEPRECATED\n\n\t\tObject.defineProperties( this, {\n\n\t\t\tuniforms: {\n\t\t\t\tget: function() {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .uniforms is now .getUniforms().' );\n\t\t\t\t\treturn this.getUniforms();\n\n\t\t\t\t}\n\t\t\t},\n\n\t\t\tattributes: {\n\t\t\t\tget: function() {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram: .attributes is now .getAttributes().' );\n\t\t\t\t\treturn this.getAttributes();\n\n\t\t\t\t}\n\t\t\t}\n\n\t\t} );\n\n\n\t\t//\n\n\t\tthis.id = programIdCount ++;\n\t\tthis.code = code;\n\t\tthis.usedTimes = 1;\n\t\tthis.program = program;\n\t\tthis.vertexShader = glVertexShader;\n\t\tthis.fragmentShader = glFragmentShader;\n\n\t\treturn this;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLPrograms( renderer, capabilities ) {\n\n\t\tvar programs = [];\n\n\t\tvar shaderIDs = {\n\t\t\tMeshDepthMaterial: 'depth',\n\t\t\tMeshNormalMaterial: 'normal',\n\t\t\tMeshBasicMaterial: 'basic',\n\t\t\tMeshLambertMaterial: 'lambert',\n\t\t\tMeshPhongMaterial: 'phong',\n\t\t\tMeshStandardMaterial: 'physical',\n\t\t\tMeshPhysicalMaterial: 'physical',\n\t\t\tLineBasicMaterial: 'basic',\n\t\t\tLineDashedMaterial: 'dashed',\n\t\t\tPointsMaterial: 'points'\n\t\t};\n\n\t\tvar parameterNames = [\n\t\t\t\"precision\", \"supportsVertexTextures\", \"map\", \"mapEncoding\", \"envMap\", \"envMapMode\", \"envMapEncoding\",\n\t\t\t\"lightMap\", \"aoMap\", \"emissiveMap\", \"emissiveMapEncoding\", \"bumpMap\", \"normalMap\", \"displacementMap\", \"specularMap\",\n\t\t\t\"roughnessMap\", \"metalnessMap\",\n\t\t\t\"alphaMap\", \"combine\", \"vertexColors\", \"fog\", \"useFog\", \"fogExp\",\n\t\t\t\"flatShading\", \"sizeAttenuation\", \"logarithmicDepthBuffer\", \"skinning\",\n\t\t\t\"maxBones\", \"useVertexTexture\", \"morphTargets\", \"morphNormals\",\n\t\t\t\"maxMorphTargets\", \"maxMorphNormals\", \"premultipliedAlpha\",\n\t\t\t\"numDirLights\", \"numPointLights\", \"numSpotLights\", \"numHemiLights\",\n\t\t\t\"shadowMapEnabled\", \"shadowMapType\", \"toneMapping\", 'physicallyCorrectLights',\n\t\t\t\"alphaTest\", \"doubleSided\", \"flipSided\", \"numClippingPlanes\", \"numClipIntersection\", \"depthPacking\"\n\t\t];\n\n\n\t\tfunction allocateBones( object ) {\n\n\t\t\tif ( capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture ) {\n\n\t\t\t\treturn 1024;\n\n\t\t\t} else {\n\n\t\t\t\t// default for when object is not specified\n\t\t\t\t// ( for example when prebuilding shader to be used with multiple objects )\n\t\t\t\t//\n\t\t\t\t// - leave some extra space for other uniforms\n\t\t\t\t// - limit here is ANGLE's 254 max uniform vectors\n\t\t\t\t// (up to 54 should be safe)\n\n\t\t\t\tvar nVertexUniforms = capabilities.maxVertexUniforms;\n\t\t\t\tvar nVertexMatrices = Math.floor( ( nVertexUniforms - 20 ) / 4 );\n\n\t\t\t\tvar maxBones = nVertexMatrices;\n\n\t\t\t\tif ( object !== undefined && (object && object.isSkinnedMesh) ) {\n\n\t\t\t\t\tmaxBones = Math.min( object.skeleton.bones.length, maxBones );\n\n\t\t\t\t\tif ( maxBones < object.skeleton.bones.length ) {\n\n\t\t\t\t\t\tconsole.warn( 'WebGLRenderer: too many bones - ' + object.skeleton.bones.length + ', this GPU supports just ' + maxBones + ' (try OpenGL instead of ANGLE)' );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn maxBones;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getTextureEncodingFromMap( map, gammaOverrideLinear ) {\n\n\t\t\tvar encoding;\n\n\t\t\tif ( ! map ) {\n\n\t\t\t\tencoding = LinearEncoding;\n\n\t\t\t} else if ( (map && map.isTexture) ) {\n\n\t\t\t\tencoding = map.encoding;\n\n\t\t\t} else if ( (map && map.isWebGLRenderTarget) ) {\n\n\t\t\t\tconsole.warn( \"THREE.WebGLPrograms.getTextureEncodingFromMap: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\tencoding = map.texture.encoding;\n\n\t\t\t}\n\n\t\t\t// add backwards compatibility for WebGLRenderer.gammaInput/gammaOutput parameter, should probably be removed at some point.\n\t\t\tif ( encoding === LinearEncoding && gammaOverrideLinear ) {\n\n\t\t\t\tencoding = GammaEncoding;\n\n\t\t\t}\n\n\t\t\treturn encoding;\n\n\t\t}\n\n\t\tthis.getParameters = function ( material, lights, fog, nClipPlanes, nClipIntersection, object ) {\n\n\t\t\tvar shaderID = shaderIDs[ material.type ];\n\n\t\t\t// heuristics to create shader parameters according to lights in the scene\n\t\t\t// (not to blow over maxLights budget)\n\n\t\t\tvar maxBones = allocateBones( object );\n\t\t\tvar precision = renderer.getPrecision();\n\n\t\t\tif ( material.precision !== null ) {\n\n\t\t\t\tprecision = capabilities.getMaxPrecision( material.precision );\n\n\t\t\t\tif ( precision !== material.precision ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLProgram.getParameters:', material.precision, 'not supported, using', precision, 'instead.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar currentRenderTarget = renderer.getCurrentRenderTarget();\n\n\t\t\tvar parameters = {\n\n\t\t\t\tshaderID: shaderID,\n\n\t\t\t\tprecision: precision,\n\t\t\t\tsupportsVertexTextures: capabilities.vertexTextures,\n\t\t\t\toutputEncoding: getTextureEncodingFromMap( ( ! currentRenderTarget ) ? null : currentRenderTarget.texture, renderer.gammaOutput ),\n\t\t\t\tmap: !! material.map,\n\t\t\t\tmapEncoding: getTextureEncodingFromMap( material.map, renderer.gammaInput ),\n\t\t\t\tenvMap: !! material.envMap,\n\t\t\t\tenvMapMode: material.envMap && material.envMap.mapping,\n\t\t\t\tenvMapEncoding: getTextureEncodingFromMap( material.envMap, renderer.gammaInput ),\n\t\t\t\tenvMapCubeUV: ( !! material.envMap ) && ( ( material.envMap.mapping === CubeUVReflectionMapping ) || ( material.envMap.mapping === CubeUVRefractionMapping ) ),\n\t\t\t\tlightMap: !! material.lightMap,\n\t\t\t\taoMap: !! material.aoMap,\n\t\t\t\temissiveMap: !! material.emissiveMap,\n\t\t\t\temissiveMapEncoding: getTextureEncodingFromMap( material.emissiveMap, renderer.gammaInput ),\n\t\t\t\tbumpMap: !! material.bumpMap,\n\t\t\t\tnormalMap: !! material.normalMap,\n\t\t\t\tdisplacementMap: !! material.displacementMap,\n\t\t\t\troughnessMap: !! material.roughnessMap,\n\t\t\t\tmetalnessMap: !! material.metalnessMap,\n\t\t\t\tspecularMap: !! material.specularMap,\n\t\t\t\talphaMap: !! material.alphaMap,\n\n\t\t\t\tcombine: material.combine,\n\n\t\t\t\tvertexColors: material.vertexColors,\n\n\t\t\t\tfog: !! fog,\n\t\t\t\tuseFog: material.fog,\n\t\t\t\tfogExp: (fog && fog.isFogExp2),\n\n\t\t\t\tflatShading: material.shading === FlatShading,\n\n\t\t\t\tsizeAttenuation: material.sizeAttenuation,\n\t\t\t\tlogarithmicDepthBuffer: capabilities.logarithmicDepthBuffer,\n\n\t\t\t\tskinning: material.skinning,\n\t\t\t\tmaxBones: maxBones,\n\t\t\t\tuseVertexTexture: capabilities.floatVertexTextures && object && object.skeleton && object.skeleton.useVertexTexture,\n\n\t\t\t\tmorphTargets: material.morphTargets,\n\t\t\t\tmorphNormals: material.morphNormals,\n\t\t\t\tmaxMorphTargets: renderer.maxMorphTargets,\n\t\t\t\tmaxMorphNormals: renderer.maxMorphNormals,\n\n\t\t\t\tnumDirLights: lights.directional.length,\n\t\t\t\tnumPointLights: lights.point.length,\n\t\t\t\tnumSpotLights: lights.spot.length,\n\t\t\t\tnumHemiLights: lights.hemi.length,\n\n\t\t\t\tnumClippingPlanes: nClipPlanes,\n\t\t\t\tnumClipIntersection: nClipIntersection,\n\n\t\t\t\tshadowMapEnabled: renderer.shadowMap.enabled && object.receiveShadow && lights.shadows.length > 0,\n\t\t\t\tshadowMapType: renderer.shadowMap.type,\n\n\t\t\t\ttoneMapping: renderer.toneMapping,\n\t\t\t\tphysicallyCorrectLights: renderer.physicallyCorrectLights,\n\n\t\t\t\tpremultipliedAlpha: material.premultipliedAlpha,\n\n\t\t\t\talphaTest: material.alphaTest,\n\t\t\t\tdoubleSided: material.side === DoubleSide,\n\t\t\t\tflipSided: material.side === BackSide,\n\n\t\t\t\tdepthPacking: ( material.depthPacking !== undefined ) ? material.depthPacking : false\n\n\t\t\t};\n\n\t\t\treturn parameters;\n\n\t\t};\n\n\t\tthis.getProgramCode = function ( material, parameters ) {\n\n\t\t\tvar array = [];\n\n\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\tarray.push( parameters.shaderID );\n\n\t\t\t} else {\n\n\t\t\t\tarray.push( material.fragmentShader );\n\t\t\t\tarray.push( material.vertexShader );\n\n\t\t\t}\n\n\t\t\tif ( material.defines !== undefined ) {\n\n\t\t\t\tfor ( var name in material.defines ) {\n\n\t\t\t\t\tarray.push( name );\n\t\t\t\t\tarray.push( material.defines[ name ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < parameterNames.length; i ++ ) {\n\n\t\t\t\tarray.push( parameters[ parameterNames[ i ] ] );\n\n\t\t\t}\n\n\t\t\treturn array.join();\n\n\t\t};\n\n\t\tthis.acquireProgram = function ( material, parameters, code ) {\n\n\t\t\tvar program;\n\n\t\t\t// Check if code has been already compiled\n\t\t\tfor ( var p = 0, pl = programs.length; p < pl; p ++ ) {\n\n\t\t\t\tvar programInfo = programs[ p ];\n\n\t\t\t\tif ( programInfo.code === code ) {\n\n\t\t\t\t\tprogram = programInfo;\n\t\t\t\t\t++ program.usedTimes;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\tprogram = new WebGLProgram( renderer, code, material, parameters );\n\t\t\t\tprograms.push( program );\n\n\t\t\t}\n\n\t\t\treturn program;\n\n\t\t};\n\n\t\tthis.releaseProgram = function( program ) {\n\n\t\t\tif ( -- program.usedTimes === 0 ) {\n\n\t\t\t\t// Remove from unordered set\n\t\t\t\tvar i = programs.indexOf( program );\n\t\t\t\tprograms[ i ] = programs[ programs.length - 1 ];\n\t\t\t\tprograms.pop();\n\n\t\t\t\t// Free WebGL resources\n\t\t\t\tprogram.destroy();\n\n\t\t\t}\n\n\t\t};\n\n\t\t// Exposed for resource monitoring & error feedback via renderer.info:\n\t\tthis.programs = programs;\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLGeometries( gl, properties, info ) {\n\n\t\tvar geometries = {};\n\n\t\tfunction onGeometryDispose( event ) {\n\n\t\t\tvar geometry = event.target;\n\t\t\tvar buffergeometry = geometries[ geometry.id ];\n\n\t\t\tif ( buffergeometry.index !== null ) {\n\n\t\t\t\tdeleteAttribute( buffergeometry.index );\n\n\t\t\t}\n\n\t\t\tdeleteAttributes( buffergeometry.attributes );\n\n\t\t\tgeometry.removeEventListener( 'dispose', onGeometryDispose );\n\n\t\t\tdelete geometries[ geometry.id ];\n\n\t\t\t// TODO\n\n\t\t\tvar property = properties.get( geometry );\n\n\t\t\tif ( property.wireframe ) {\n\n\t\t\t\tdeleteAttribute( property.wireframe );\n\n\t\t\t}\n\n\t\t\tproperties.delete( geometry );\n\n\t\t\tvar bufferproperty = properties.get( buffergeometry );\n\n\t\t\tif ( bufferproperty.wireframe ) {\n\n\t\t\t\tdeleteAttribute( bufferproperty.wireframe );\n\n\t\t\t}\n\n\t\t\tproperties.delete( buffergeometry );\n\n\t\t\t//\n\n\t\t\tinfo.memory.geometries --;\n\n\t\t}\n\n\t\tfunction getAttributeBuffer( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\treturn properties.get( attribute.data ).__webglBuffer;\n\n\t\t\t}\n\n\t\t\treturn properties.get( attribute ).__webglBuffer;\n\n\t\t}\n\n\t\tfunction deleteAttribute( attribute ) {\n\n\t\t\tvar buffer = getAttributeBuffer( attribute );\n\n\t\t\tif ( buffer !== undefined ) {\n\n\t\t\t\tgl.deleteBuffer( buffer );\n\t\t\t\tremoveAttributeBuffer( attribute );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction deleteAttributes( attributes ) {\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tdeleteAttribute( attributes[ name ] );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction removeAttributeBuffer( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\tproperties.delete( attribute.data );\n\n\t\t\t} else {\n\n\t\t\t\tproperties.delete( attribute );\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tget: function ( object ) {\n\n\t\t\t\tvar geometry = object.geometry;\n\n\t\t\t\tif ( geometries[ geometry.id ] !== undefined ) {\n\n\t\t\t\t\treturn geometries[ geometry.id ];\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.addEventListener( 'dispose', onGeometryDispose );\n\n\t\t\t\tvar buffergeometry;\n\n\t\t\t\tif ( geometry.isBufferGeometry ) {\n\n\t\t\t\t\tbuffergeometry = geometry;\n\n\t\t\t\t} else if ( geometry.isGeometry ) {\n\n\t\t\t\t\tif ( geometry._bufferGeometry === undefined ) {\n\n\t\t\t\t\t\tgeometry._bufferGeometry = new BufferGeometry().setFromObject( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbuffergeometry = geometry._bufferGeometry;\n\n\t\t\t\t}\n\n\t\t\t\tgeometries[ geometry.id ] = buffergeometry;\n\n\t\t\t\tinfo.memory.geometries ++;\n\n\t\t\t\treturn buffergeometry;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLObjects( gl, properties, info ) {\n\n\t\tvar geometries = new WebGLGeometries( gl, properties, info );\n\n\t\t//\n\n\t\tfunction update( object ) {\n\n\t\t\t// TODO: Avoid updating twice (when using shadowMap). Maybe add frame counter.\n\n\t\t\tvar geometry = geometries.get( object );\n\n\t\t\tif ( object.geometry.isGeometry ) {\n\n\t\t\t\tgeometry.updateFromObject( object );\n\n\t\t\t}\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar attributes = geometry.attributes;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tupdateAttribute( index, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\tfor ( var name in attributes ) {\n\n\t\t\t\tupdateAttribute( attributes[ name ], gl.ARRAY_BUFFER );\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphAttributes = geometry.morphAttributes;\n\n\t\t\tfor ( var name in morphAttributes ) {\n\n\t\t\t\tvar array = morphAttributes[ name ];\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i ++ ) {\n\n\t\t\t\t\tupdateAttribute( array[ i ], gl.ARRAY_BUFFER );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t\tfunction updateAttribute( attribute, bufferType ) {\n\n\t\t\tvar data = ( attribute.isInterleavedBufferAttribute ) ? attribute.data : attribute;\n\n\t\t\tvar attributeProperties = properties.get( data );\n\n\t\t\tif ( attributeProperties.__webglBuffer === undefined ) {\n\n\t\t\t\tcreateBuffer( attributeProperties, data, bufferType );\n\n\t\t\t} else if ( attributeProperties.version !== data.version ) {\n\n\t\t\t\tupdateBuffer( attributeProperties, data, bufferType );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction createBuffer( attributeProperties, data, bufferType ) {\n\n\t\t\tattributeProperties.__webglBuffer = gl.createBuffer();\n\t\t\tgl.bindBuffer( bufferType, attributeProperties.__webglBuffer );\n\n\t\t\tvar usage = data.dynamic ? gl.DYNAMIC_DRAW : gl.STATIC_DRAW;\n\n\t\t\tgl.bufferData( bufferType, data.array, usage );\n\n\t\t\tattributeProperties.version = data.version;\n\n\t\t}\n\n\t\tfunction updateBuffer( attributeProperties, data, bufferType ) {\n\n\t\t\tgl.bindBuffer( bufferType, attributeProperties.__webglBuffer );\n\n\t\t\tif ( data.dynamic === false ) {\n\n\t\t\t\tgl.bufferData( bufferType, data.array, gl.STATIC_DRAW );\n\n\t\t\t} else if ( data.updateRange.count === - 1 ) {\n\n\t\t\t\t// Not using update ranges\n\n\t\t\t\tgl.bufferSubData( bufferType, 0, data.array );\n\n\t\t\t} else if ( data.updateRange.count === 0 ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLObjects.updateBuffer: dynamic THREE.BufferAttribute marked as needsUpdate but updateRange.count is 0, ensure you are using set methods or updating manually.' );\n\n\t\t\t} else {\n\n\t\t\t\tgl.bufferSubData( bufferType, data.updateRange.offset * data.array.BYTES_PER_ELEMENT,\n\t\t\t\t\t\t\t\t data.array.subarray( data.updateRange.offset, data.updateRange.offset + data.updateRange.count ) );\n\n\t\t\t\tdata.updateRange.count = 0; // reset range\n\n\t\t\t}\n\n\t\t\tattributeProperties.version = data.version;\n\n\t\t}\n\n\t\tfunction getAttributeBuffer( attribute ) {\n\n\t\t\tif ( attribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\treturn properties.get( attribute.data ).__webglBuffer;\n\n\t\t\t}\n\n\t\t\treturn properties.get( attribute ).__webglBuffer;\n\n\t\t}\n\n\t\tfunction getWireframeAttribute( geometry ) {\n\n\t\t\tvar property = properties.get( geometry );\n\n\t\t\tif ( property.wireframe !== undefined ) {\n\n\t\t\t\treturn property.wireframe;\n\n\t\t\t}\n\n\t\t\tvar indices = [];\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar attributes = geometry.attributes;\n\t\t\tvar position = attributes.position;\n\n\t\t\t// console.time( 'wireframe' );\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tvar edges = {};\n\t\t\t\tvar array = index.array;\n\n\t\t\t\tfor ( var i = 0, l = array.length; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = array[ i + 0 ];\n\t\t\t\t\tvar b = array[ i + 1 ];\n\t\t\t\t\tvar c = array[ i + 2 ];\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar array = attributes.position.array;\n\n\t\t\t\tfor ( var i = 0, l = ( array.length / 3 ) - 1; i < l; i += 3 ) {\n\n\t\t\t\t\tvar a = i + 0;\n\t\t\t\t\tvar b = i + 1;\n\t\t\t\t\tvar c = i + 2;\n\n\t\t\t\t\tindices.push( a, b, b, c, c, a );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// console.timeEnd( 'wireframe' );\n\n\t\t\tvar TypeArray = position.count > 65535 ? Uint32Array : Uint16Array;\n\t\t\tvar attribute = new BufferAttribute( new TypeArray( indices ), 1 );\n\n\t\t\tupdateAttribute( attribute, gl.ELEMENT_ARRAY_BUFFER );\n\n\t\t\tproperty.wireframe = attribute;\n\n\t\t\treturn attribute;\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tgetAttributeBuffer: getAttributeBuffer,\n\t\t\tgetWireframeAttribute: getWireframeAttribute,\n\n\t\t\tupdate: update\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, info ) {\n\n\t\tvar _infoMemory = info.memory;\n\t\tvar _isWebGL2 = ( typeof WebGL2RenderingContext !== 'undefined' && _gl instanceof WebGL2RenderingContext );\n\n\t\t//\n\n\t\tfunction clampToMaxSize( image, maxSize ) {\n\n\t\t\tif ( image.width > maxSize || image.height > maxSize ) {\n\n\t\t\t\t// Warning: Scaling through the canvas will only work with images that use\n\t\t\t\t// premultiplied alpha.\n\n\t\t\t\tvar scale = maxSize / Math.max( image.width, image.height );\n\n\t\t\t\tvar canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\tcanvas.width = Math.floor( image.width * scale );\n\t\t\t\tcanvas.height = Math.floor( image.height * scale );\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, image.width, image.height, 0, 0, canvas.width, canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is too big (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );\n\n\t\t\t\treturn canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction isPowerOfTwo( image ) {\n\n\t\t\treturn _Math.isPowerOfTwo( image.width ) && _Math.isPowerOfTwo( image.height );\n\n\t\t}\n\n\t\tfunction makePowerOfTwo( image ) {\n\n\t\t\tif ( image instanceof HTMLImageElement || image instanceof HTMLCanvasElement ) {\n\n\t\t\t\tvar canvas = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\t\t\tcanvas.width = _Math.nearestPowerOfTwo( image.width );\n\t\t\t\tcanvas.height = _Math.nearestPowerOfTwo( image.height );\n\n\t\t\t\tvar context = canvas.getContext( '2d' );\n\t\t\t\tcontext.drawImage( image, 0, 0, canvas.width, canvas.height );\n\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: image is not power of two (' + image.width + 'x' + image.height + '). Resized to ' + canvas.width + 'x' + canvas.height, image );\n\n\t\t\t\treturn canvas;\n\n\t\t\t}\n\n\t\t\treturn image;\n\n\t\t}\n\n\t\tfunction textureNeedsPowerOfTwo( texture ) {\n\n\t\t\tif ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) return true;\n\t\t\tif ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) return true;\n\n\t\t\treturn false;\n\n\t\t}\n\n\t\t// Fallback filters for non-power-of-2 textures\n\n\t\tfunction filterFallback( f ) {\n\n\t\t\tif ( f === NearestFilter || f === NearestMipMapNearestFilter || f === NearestMipMapLinearFilter ) {\n\n\t\t\t\treturn _gl.NEAREST;\n\n\t\t\t}\n\n\t\t\treturn _gl.LINEAR;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction onTextureDispose( event ) {\n\n\t\t\tvar texture = event.target;\n\n\t\t\ttexture.removeEventListener( 'dispose', onTextureDispose );\n\n\t\t\tdeallocateTexture( texture );\n\n\t\t\t_infoMemory.textures --;\n\n\n\t\t}\n\n\t\tfunction onRenderTargetDispose( event ) {\n\n\t\t\tvar renderTarget = event.target;\n\n\t\t\trenderTarget.removeEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\tdeallocateRenderTarget( renderTarget );\n\n\t\t\t_infoMemory.textures --;\n\n\t\t}\n\n\t\t//\n\n\t\tfunction deallocateTexture( texture ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image && textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t// cube texture\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__image__webglTextureCube );\n\n\t\t\t} else {\n\n\t\t\t\t// 2D texture\n\n\t\t\t\tif ( textureProperties.__webglInit === undefined ) return;\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\t// remove all webgl properties\n\t\t\tproperties.delete( texture );\n\n\t\t}\n\n\t\tfunction deallocateRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\tif ( ! renderTarget ) return;\n\n\t\t\tif ( textureProperties.__webglTexture !== undefined ) {\n\n\t\t\t\t_gl.deleteTexture( textureProperties.__webglTexture );\n\n\t\t\t}\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\trenderTarget.depthTexture.dispose();\n\n\t\t\t}\n\n\t\t\tif ( (renderTarget && renderTarget.isWebGLRenderTargetCube) ) {\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer[ i ] );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t_gl.deleteFramebuffer( renderTargetProperties.__webglFramebuffer );\n\t\t\t\tif ( renderTargetProperties.__webglDepthbuffer ) _gl.deleteRenderbuffer( renderTargetProperties.__webglDepthbuffer );\n\n\t\t\t}\n\n\t\t\tproperties.delete( renderTarget.texture );\n\t\t\tproperties.delete( renderTarget );\n\n\t\t}\n\n\t\t//\n\n\n\n\t\tfunction setTexture2D( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\tvar image = texture.image;\n\n\t\t\t\tif ( image === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is undefined', texture );\n\n\t\t\t\t} else if ( image.complete === false ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture marked for update but image is incomplete', texture );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tuploadTexture( textureProperties, texture, slot );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureCube( texture, slot ) {\n\n\t\t\tvar textureProperties = properties.get( texture );\n\n\t\t\tif ( texture.image.length === 6 ) {\n\n\t\t\t\tif ( texture.version > 0 && textureProperties.__version !== texture.version ) {\n\n\t\t\t\t\tif ( ! textureProperties.__image__webglTextureCube ) {\n\n\t\t\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\t\t\ttextureProperties.__image__webglTextureCube = _gl.createTexture();\n\n\t\t\t\t\t\t_infoMemory.textures ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\n\t\t\t\t\tvar isCompressed = (texture && texture.isCompressedTexture);\n\t\t\t\t\tvar isDataTexture = (texture.image[ 0 ] && texture.image[ 0 ].isDataTexture);\n\n\t\t\t\t\tvar cubeImage = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed && ! isDataTexture ) {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = clampToMaxSize( texture.image[ i ], capabilities.maxCubemapSize );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tcubeImage[ i ] = isDataTexture ? texture.image[ i ].image : texture.image[ i ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar image = cubeImage[ 0 ],\n\t\t\t\t\tisPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\t\t\tglFormat = paramThreeToGL( texture.format ),\n\t\t\t\t\tglType = paramThreeToGL( texture.type );\n\n\t\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, texture, isPowerOfTwoImage );\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\tif ( ! isCompressed ) {\n\n\t\t\t\t\t\t\tif ( isDataTexture ) {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, cubeImage[ i ].width, cubeImage[ i ].height, 0, glFormat, glType, cubeImage[ i ].data );\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, glFormat, glFormat, glType, cubeImage[ i ] );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar mipmap, mipmaps = cubeImage[ i ].mipmaps;\n\n\t\t\t\t\t\t\tfor ( var j = 0, jl = mipmaps.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\t\t\tmipmap = mipmaps[ j ];\n\n\t\t\t\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()\" );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i, j, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( texture.generateMipmaps && isPowerOfTwoImage ) {\n\n\t\t\t\t\t\t_gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__image__webglTextureCube );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setTextureCubeDynamic( texture, slot ) {\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, properties.get( texture ).__webglTexture );\n\n\t\t}\n\n\t\tfunction setTextureParameters( textureType, texture, isPowerOfTwoImage ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( isPowerOfTwoImage ) {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, paramThreeToGL( texture.wrapS ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, paramThreeToGL( texture.wrapT ) );\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, paramThreeToGL( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, paramThreeToGL( texture.minFilter ) );\n\n\t\t\t} else {\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_S, _gl.CLAMP_TO_EDGE );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_WRAP_T, _gl.CLAMP_TO_EDGE );\n\n\t\t\t\tif ( texture.wrapS !== ClampToEdgeWrapping || texture.wrapT !== ClampToEdgeWrapping ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.', texture );\n\n\t\t\t\t}\n\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MAG_FILTER, filterFallback( texture.magFilter ) );\n\t\t\t\t_gl.texParameteri( textureType, _gl.TEXTURE_MIN_FILTER, filterFallback( texture.minFilter ) );\n\n\t\t\t\tif ( texture.minFilter !== NearestFilter && texture.minFilter !== LinearFilter ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.', texture );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\textension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension ) {\n\n\t\t\t\tif ( texture.type === FloatType && extensions.get( 'OES_texture_float_linear' ) === null ) return;\n\t\t\t\tif ( texture.type === HalfFloatType && extensions.get( 'OES_texture_half_float_linear' ) === null ) return;\n\n\t\t\t\tif ( texture.anisotropy > 1 || properties.get( texture ).__currentAnisotropy ) {\n\n\t\t\t\t\t_gl.texParameterf( textureType, extension.TEXTURE_MAX_ANISOTROPY_EXT, Math.min( texture.anisotropy, capabilities.getMaxAnisotropy() ) );\n\t\t\t\t\tproperties.get( texture ).__currentAnisotropy = texture.anisotropy;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction uploadTexture( textureProperties, texture, slot ) {\n\n\t\t\tif ( textureProperties.__webglInit === undefined ) {\n\n\t\t\t\ttextureProperties.__webglInit = true;\n\n\t\t\t\ttexture.addEventListener( 'dispose', onTextureDispose );\n\n\t\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\t\t_infoMemory.textures ++;\n\n\t\t\t}\n\n\t\t\tstate.activeTexture( _gl.TEXTURE0 + slot );\n\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\n\t\t\t_gl.pixelStorei( _gl.UNPACK_FLIP_Y_WEBGL, texture.flipY );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, texture.premultiplyAlpha );\n\t\t\t_gl.pixelStorei( _gl.UNPACK_ALIGNMENT, texture.unpackAlignment );\n\n\t\t\tvar image = clampToMaxSize( texture.image, capabilities.maxTextureSize );\n\n\t\t\tif ( textureNeedsPowerOfTwo( texture ) && isPowerOfTwo( image ) === false ) {\n\n\t\t\t\timage = makePowerOfTwo( image );\n\n\t\t\t}\n\n\t\t\tvar isPowerOfTwoImage = isPowerOfTwo( image ),\n\t\t\tglFormat = paramThreeToGL( texture.format ),\n\t\t\tglType = paramThreeToGL( texture.type );\n\n\t\t\tsetTextureParameters( _gl.TEXTURE_2D, texture, isPowerOfTwoImage );\n\n\t\t\tvar mipmap, mipmaps = texture.mipmaps;\n\n\t\t\tif ( (texture && texture.isDepthTexture) ) {\n\n\t\t\t\t// populate depth texture with dummy data\n\n\t\t\t\tvar internalFormat = _gl.DEPTH_COMPONENT;\n\n\t\t\t\tif ( texture.type === FloatType ) {\n\n\t\t\t\t\tif ( !_isWebGL2 ) throw new Error('Float Depth Texture only supported in WebGL2.0');\n\t\t\t\t\tinternalFormat = _gl.DEPTH_COMPONENT32F;\n\n\t\t\t\t} else if ( _isWebGL2 ) {\n\n\t\t\t\t\t// WebGL 2.0 requires signed internalformat for glTexImage2D\n\t\t\t\t\tinternalFormat = _gl.DEPTH_COMPONENT16;\n\n\t\t\t\t}\n\n\t\t\t\t// Depth stencil textures need the DEPTH_STENCIL internal format\n\t\t\t\t// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)\n\t\t\t\tif ( texture.format === DepthStencilFormat ) {\n\n\t\t\t\t\tinternalFormat = _gl.DEPTH_STENCIL;\n\n\t\t\t\t}\n\n\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, internalFormat, image.width, image.height, 0, glFormat, glType, null );\n\n\t\t\t} else if ( (texture && texture.isDataTexture) ) {\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glFormat, image.width, image.height, 0, glFormat, glType, image.data );\n\n\t\t\t\t}\n\n\t\t\t} else if ( (texture && texture.isCompressedTexture) ) {\n\n\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\tmipmap = mipmaps[ i ];\n\n\t\t\t\t\tif ( texture.format !== RGBAFormat && texture.format !== RGBFormat ) {\n\n\t\t\t\t\t\tif ( state.getCompressedTextureFormats().indexOf( glFormat ) > - 1 ) {\n\n\t\t\t\t\t\t\tstate.compressedTexImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, mipmap.data );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()\" );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glFormat, mipmap.width, mipmap.height, 0, glFormat, glType, mipmap.data );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// regular Texture (image, video, canvas)\n\n\t\t\t\t// use manually created mipmaps if available\n\t\t\t\t// if there are no manual mipmaps\n\t\t\t\t// set 0 level mipmap and then use GL to generate other mipmap levels\n\n\t\t\t\tif ( mipmaps.length > 0 && isPowerOfTwoImage ) {\n\n\t\t\t\t\tfor ( var i = 0, il = mipmaps.length; i < il; i ++ ) {\n\n\t\t\t\t\t\tmipmap = mipmaps[ i ];\n\t\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, i, glFormat, glFormat, glType, mipmap );\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.generateMipmaps = false;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tstate.texImage2D( _gl.TEXTURE_2D, 0, glFormat, glFormat, glType, image );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( texture.generateMipmaps && isPowerOfTwoImage ) _gl.generateMipmap( _gl.TEXTURE_2D );\n\n\t\t\ttextureProperties.__version = texture.version;\n\n\t\t\tif ( texture.onUpdate ) texture.onUpdate( texture );\n\n\t\t}\n\n\t\t// Render targets\n\n\t\t// Setup storage for target texture and bind it to correct framebuffer\n\t\tfunction setupFrameBufferTexture( framebuffer, renderTarget, attachment, textureTarget ) {\n\n\t\t\tvar glFormat = paramThreeToGL( renderTarget.texture.format );\n\t\t\tvar glType = paramThreeToGL( renderTarget.texture.type );\n\t\t\tstate.texImage2D( textureTarget, 0, glFormat, renderTarget.width, renderTarget.height, 0, glFormat, glType, null );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, attachment, textureTarget, properties.get( renderTarget.texture ).__webglTexture, 0 );\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Setup storage for internal depth/stencil buffers and bind to correct framebuffer\n\t\tfunction setupRenderBufferStorage( renderbuffer, renderTarget ) {\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\tif ( renderTarget.depthBuffer && ! renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_COMPONENT16, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else if ( renderTarget.depthBuffer && renderTarget.stencilBuffer ) {\n\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.DEPTH_STENCIL, renderTarget.width, renderTarget.height );\n\t\t\t\t_gl.framebufferRenderbuffer( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.RENDERBUFFER, renderbuffer );\n\n\t\t\t} else {\n\n\t\t\t\t// FIXME: We don't support !depth !stencil\n\t\t\t\t_gl.renderbufferStorage( _gl.RENDERBUFFER, _gl.RGBA4, renderTarget.width, renderTarget.height );\n\n\t\t\t}\n\n\t\t\t_gl.bindRenderbuffer( _gl.RENDERBUFFER, null );\n\n\t\t}\n\n\t\t// Setup resources for a Depth Texture for a FBO (needs an extension)\n\t\tfunction setupDepthTexture( framebuffer, renderTarget ) {\n\n\t\t\tvar isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) );\n\t\t\tif ( isCube ) throw new Error('Depth Texture with cube render targets is not supported!');\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\tif ( !( (renderTarget.depthTexture && renderTarget.depthTexture.isDepthTexture) ) ) {\n\n\t\t\t\tthrow new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');\n\n\t\t\t}\n\n\t\t\t// upload an empty depth texture with framebuffer size\n\t\t\tif ( !properties.get( renderTarget.depthTexture ).__webglTexture ||\n\t\t\t\t\trenderTarget.depthTexture.image.width !== renderTarget.width ||\n\t\t\t\t\trenderTarget.depthTexture.image.height !== renderTarget.height ) {\n\t\t\t\trenderTarget.depthTexture.image.width = renderTarget.width;\n\t\t\t\trenderTarget.depthTexture.image.height = renderTarget.height;\n\t\t\t\trenderTarget.depthTexture.needsUpdate = true;\n\t\t\t}\n\n\t\t\tsetTexture2D( renderTarget.depthTexture, 0 );\n\n\t\t\tvar webglDepthTexture = properties.get( renderTarget.depthTexture ).__webglTexture;\n\n\t\t\tif ( renderTarget.depthTexture.format === DepthFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else if ( renderTarget.depthTexture.format === DepthStencilFormat ) {\n\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.DEPTH_STENCIL_ATTACHMENT, _gl.TEXTURE_2D, webglDepthTexture, 0 );\n\n\t\t\t} else {\n\n\t\t\t\tthrow new Error('Unknown depthTexture format')\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Setup GL resources for a non-texture depth buffer\n\t\tfunction setupDepthRenderbuffer( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\n\t\t\tvar isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) );\n\n\t\t\tif ( renderTarget.depthTexture ) {\n\n\t\t\t\tif ( isCube ) throw new Error('target.depthTexture not supported in Cube render targets');\n\n\t\t\t\tsetupDepthTexture( renderTargetProperties.__webglFramebuffer, renderTarget );\n\n\t\t\t} else {\n\n\t\t\t\tif ( isCube ) {\n\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = [];\n\n\t\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer[ i ] );\n\t\t\t\t\t\trenderTargetProperties.__webglDepthbuffer[ i ] = _gl.createRenderbuffer();\n\t\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer[ i ], renderTarget );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, renderTargetProperties.__webglFramebuffer );\n\t\t\t\t\trenderTargetProperties.__webglDepthbuffer = _gl.createRenderbuffer();\n\t\t\t\t\tsetupRenderBufferStorage( renderTargetProperties.__webglDepthbuffer, renderTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, null );\n\n\t\t}\n\n\t\t// Set up GL resources for the render target\n\t\tfunction setupRenderTarget( renderTarget ) {\n\n\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\n\t\t\trenderTarget.addEventListener( 'dispose', onRenderTargetDispose );\n\n\t\t\ttextureProperties.__webglTexture = _gl.createTexture();\n\n\t\t\t_infoMemory.textures ++;\n\n\t\t\tvar isCube = ( (renderTarget && renderTarget.isWebGLRenderTargetCube) );\n\t\t\tvar isTargetPowerOfTwo = isPowerOfTwo( renderTarget );\n\n\t\t\t// Setup framebuffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = [];\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\trenderTargetProperties.__webglFramebuffer[ i ] = _gl.createFramebuffer();\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderTargetProperties.__webglFramebuffer = _gl.createFramebuffer();\n\n\t\t\t}\n\n\t\t\t// Setup color buffer\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_CUBE_MAP, renderTarget.texture, isTargetPowerOfTwo );\n\n\t\t\t\tfor ( var i = 0; i < 6; i ++ ) {\n\n\t\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer[ i ], renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + i );\n\n\t\t\t\t}\n\n\t\t\t\tif ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_CUBE_MAP );\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_CUBE_MAP, null );\n\n\t\t\t} else {\n\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, textureProperties.__webglTexture );\n\t\t\t\tsetTextureParameters( _gl.TEXTURE_2D, renderTarget.texture, isTargetPowerOfTwo );\n\t\t\t\tsetupFrameBufferTexture( renderTargetProperties.__webglFramebuffer, renderTarget, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_2D );\n\n\t\t\t\tif ( renderTarget.texture.generateMipmaps && isTargetPowerOfTwo ) _gl.generateMipmap( _gl.TEXTURE_2D );\n\t\t\t\tstate.bindTexture( _gl.TEXTURE_2D, null );\n\n\t\t\t}\n\n\t\t\t// Setup depth and stencil buffers\n\n\t\t\tif ( renderTarget.depthBuffer ) {\n\n\t\t\t\tsetupDepthRenderbuffer( renderTarget );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction updateRenderTargetMipmap( renderTarget ) {\n\n\t\t\tvar texture = renderTarget.texture;\n\n\t\t\tif ( texture.generateMipmaps && isPowerOfTwo( renderTarget ) &&\n\t\t\t\t\ttexture.minFilter !== NearestFilter &&\n\t\t\t\t\ttexture.minFilter !== LinearFilter ) {\n\n\t\t\t\tvar target = (renderTarget && renderTarget.isWebGLRenderTargetCube) ? _gl.TEXTURE_CUBE_MAP : _gl.TEXTURE_2D;\n\t\t\t\tvar webglTexture = properties.get( texture ).__webglTexture;\n\n\t\t\t\tstate.bindTexture( target, webglTexture );\n\t\t\t\t_gl.generateMipmap( target );\n\t\t\t\tstate.bindTexture( target, null );\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.setTexture2D = setTexture2D;\n\t\tthis.setTextureCube = setTextureCube;\n\t\tthis.setTextureCubeDynamic = setTextureCubeDynamic;\n\t\tthis.setupRenderTarget = setupRenderTarget;\n\t\tthis.updateRenderTargetMipmap = updateRenderTargetMipmap;\n\n\t}\n\n\t/**\n\t * @author fordacious / fordacious.github.io\n\t */\n\n\tfunction WebGLProperties() {\n\n\t\tvar properties = {};\n\n\t\treturn {\n\n\t\t\tget: function ( object ) {\n\n\t\t\t\tvar uuid = object.uuid;\n\t\t\t\tvar map = properties[ uuid ];\n\n\t\t\t\tif ( map === undefined ) {\n\n\t\t\t\t\tmap = {};\n\t\t\t\t\tproperties[ uuid ] = map;\n\n\t\t\t\t}\n\n\t\t\t\treturn map;\n\n\t\t\t},\n\n\t\t\tdelete: function ( object ) {\n\n\t\t\t\tdelete properties[ object.uuid ];\n\n\t\t\t},\n\n\t\t\tclear: function () {\n\n\t\t\t\tproperties = {};\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLState( gl, extensions, paramThreeToGL ) {\n\n\t\tfunction ColorBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar color = new Vector4();\n\t\t\tvar currentColorMask = null;\n\t\t\tvar currentColorClear = new Vector4();\n\n\t\t\treturn {\n\n\t\t\t\tsetMask: function ( colorMask ) {\n\n\t\t\t\t\tif ( currentColorMask !== colorMask && ! locked ) {\n\n\t\t\t\t\t\tgl.colorMask( colorMask, colorMask, colorMask, colorMask );\n\t\t\t\t\t\tcurrentColorMask = colorMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( r, g, b, a ) {\n\n\t\t\t\t\tcolor.set( r, g, b, a );\n\n\t\t\t\t\tif ( currentColorClear.equals( color ) === false ) {\n\n\t\t\t\t\t\tgl.clearColor( r, g, b, a );\n\t\t\t\t\t\tcurrentColorClear.copy( color );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentColorMask = null;\n\t\t\t\t\tcurrentColorClear.set( 0, 0, 0, 1 );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction DepthBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentDepthMask = null;\n\t\t\tvar currentDepthFunc = null;\n\t\t\tvar currentDepthClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( depthTest ) {\n\n\t\t\t\t\tif ( depthTest ) {\n\n\t\t\t\t\t\tenable( gl.DEPTH_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.DEPTH_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( depthMask ) {\n\n\t\t\t\t\tif ( currentDepthMask !== depthMask && ! locked ) {\n\n\t\t\t\t\t\tgl.depthMask( depthMask );\n\t\t\t\t\t\tcurrentDepthMask = depthMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( depthFunc ) {\n\n\t\t\t\t\tif ( currentDepthFunc !== depthFunc ) {\n\n\t\t\t\t\t\tif ( depthFunc ) {\n\n\t\t\t\t\t\t\tswitch ( depthFunc ) {\n\n\t\t\t\t\t\t\t\tcase NeverDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NEVER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase AlwaysDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.ALWAYS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LESS );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase LessEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase EqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.EQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase GreaterDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.GREATER );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase NotEqualDepth:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.NOTEQUAL );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tgl.depthFunc( gl.LEQUAL );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcurrentDepthFunc = depthFunc;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( depth ) {\n\n\t\t\t\t\tif ( currentDepthClear !== depth ) {\n\n\t\t\t\t\t\tgl.clearDepth( depth );\n\t\t\t\t\t\tcurrentDepthClear = depth;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentDepthMask = null;\n\t\t\t\t\tcurrentDepthFunc = null;\n\t\t\t\t\tcurrentDepthClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\tfunction StencilBuffer() {\n\n\t\t\tvar locked = false;\n\n\t\t\tvar currentStencilMask = null;\n\t\t\tvar currentStencilFunc = null;\n\t\t\tvar currentStencilRef = null;\n\t\t\tvar currentStencilFuncMask = null;\n\t\t\tvar currentStencilFail = null;\n\t\t\tvar currentStencilZFail = null;\n\t\t\tvar currentStencilZPass = null;\n\t\t\tvar currentStencilClear = null;\n\n\t\t\treturn {\n\n\t\t\t\tsetTest: function ( stencilTest ) {\n\n\t\t\t\t\tif ( stencilTest ) {\n\n\t\t\t\t\t\tenable( gl.STENCIL_TEST );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tdisable( gl.STENCIL_TEST );\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetMask: function ( stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilMask !== stencilMask && ! locked ) {\n\n\t\t\t\t\t\tgl.stencilMask( stencilMask );\n\t\t\t\t\t\tcurrentStencilMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetFunc: function ( stencilFunc, stencilRef, stencilMask ) {\n\n\t\t\t\t\tif ( currentStencilFunc !== stencilFunc ||\n\t\t\t\t\t currentStencilRef \t!== stencilRef \t||\n\t\t\t\t\t currentStencilFuncMask !== stencilMask ) {\n\n\t\t\t\t\t\tgl.stencilFunc( stencilFunc, stencilRef, stencilMask );\n\n\t\t\t\t\t\tcurrentStencilFunc = stencilFunc;\n\t\t\t\t\t\tcurrentStencilRef = stencilRef;\n\t\t\t\t\t\tcurrentStencilFuncMask = stencilMask;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetOp: function ( stencilFail, stencilZFail, stencilZPass ) {\n\n\t\t\t\t\tif ( currentStencilFail\t !== stencilFail \t||\n\t\t\t\t\t currentStencilZFail !== stencilZFail ||\n\t\t\t\t\t currentStencilZPass !== stencilZPass ) {\n\n\t\t\t\t\t\tgl.stencilOp( stencilFail, stencilZFail, stencilZPass );\n\n\t\t\t\t\t\tcurrentStencilFail = stencilFail;\n\t\t\t\t\t\tcurrentStencilZFail = stencilZFail;\n\t\t\t\t\t\tcurrentStencilZPass = stencilZPass;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tsetLocked: function ( lock ) {\n\n\t\t\t\t\tlocked = lock;\n\n\t\t\t\t},\n\n\t\t\t\tsetClear: function ( stencil ) {\n\n\t\t\t\t\tif ( currentStencilClear !== stencil ) {\n\n\t\t\t\t\t\tgl.clearStencil( stencil );\n\t\t\t\t\t\tcurrentStencilClear = stencil;\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\treset: function () {\n\n\t\t\t\t\tlocked = false;\n\n\t\t\t\t\tcurrentStencilMask = null;\n\t\t\t\t\tcurrentStencilFunc = null;\n\t\t\t\t\tcurrentStencilRef = null;\n\t\t\t\t\tcurrentStencilFuncMask = null;\n\t\t\t\t\tcurrentStencilFail = null;\n\t\t\t\t\tcurrentStencilZFail = null;\n\t\t\t\t\tcurrentStencilZPass = null;\n\t\t\t\t\tcurrentStencilClear = null;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}\n\n\t\t//\n\n\t\tvar colorBuffer = new ColorBuffer();\n\t\tvar depthBuffer = new DepthBuffer();\n\t\tvar stencilBuffer = new StencilBuffer();\n\n\t\tvar maxVertexAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar newAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar enabledAttributes = new Uint8Array( maxVertexAttributes );\n\t\tvar attributeDivisors = new Uint8Array( maxVertexAttributes );\n\n\t\tvar capabilities = {};\n\n\t\tvar compressedTextureFormats = null;\n\n\t\tvar currentBlending = null;\n\t\tvar currentBlendEquation = null;\n\t\tvar currentBlendSrc = null;\n\t\tvar currentBlendDst = null;\n\t\tvar currentBlendEquationAlpha = null;\n\t\tvar currentBlendSrcAlpha = null;\n\t\tvar currentBlendDstAlpha = null;\n\t\tvar currentPremultipledAlpha = false;\n\n\t\tvar currentFlipSided = null;\n\t\tvar currentCullFace = null;\n\n\t\tvar currentLineWidth = null;\n\n\t\tvar currentPolygonOffsetFactor = null;\n\t\tvar currentPolygonOffsetUnits = null;\n\n\t\tvar currentScissorTest = null;\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );\n\n\t\tvar currentTextureSlot = null;\n\t\tvar currentBoundTextures = {};\n\n\t\tvar currentScissor = new Vector4();\n\t\tvar currentViewport = new Vector4();\n\n\t\tfunction createTexture( type, target, count ) {\n\n\t\t\tvar data = new Uint8Array( 4 ); // 4 is required to match default unpack alignment of 4.\n\t\t\tvar texture = gl.createTexture();\n\n\t\t\tgl.bindTexture( type, texture );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MIN_FILTER, gl.NEAREST );\n\t\t\tgl.texParameteri( type, gl.TEXTURE_MAG_FILTER, gl.NEAREST );\n\n\t\t\tfor ( var i = 0; i < count; i ++ ) {\n\n\t\t\t\tgl.texImage2D( target + i, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, data );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t\tvar emptyTextures = {};\n\t\temptyTextures[ gl.TEXTURE_2D ] = createTexture( gl.TEXTURE_2D, gl.TEXTURE_2D, 1 );\n\t\temptyTextures[ gl.TEXTURE_CUBE_MAP ] = createTexture( gl.TEXTURE_CUBE_MAP, gl.TEXTURE_CUBE_MAP_POSITIVE_X, 6 );\n\n\t\t//\n\n\t\tfunction init() {\n\n\t\t\tclearColor( 0, 0, 0, 1 );\n\t\t\tclearDepth( 1 );\n\t\t\tclearStencil( 0 );\n\n\t\t\tenable( gl.DEPTH_TEST );\n\t\t\tsetDepthFunc( LessEqualDepth );\n\n\t\t\tsetFlipSided( false );\n\t\t\tsetCullFace( CullFaceBack );\n\t\t\tenable( gl.CULL_FACE );\n\n\t\t\tenable( gl.BLEND );\n\t\t\tsetBlending( NormalBlending );\n\n\t\t}\n\n\t\tfunction initAttributes() {\n\n\t\t\tfor ( var i = 0, l = newAttributes.length; i < l; i ++ ) {\n\n\t\t\t\tnewAttributes[ i ] = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enableAttribute( attribute ) {\n\n\t\t\tnewAttributes[ attribute ] = 1;\n\n\t\t\tif ( enabledAttributes[ attribute ] === 0 ) {\n\n\t\t\t\tgl.enableVertexAttribArray( attribute );\n\t\t\t\tenabledAttributes[ attribute ] = 1;\n\n\t\t\t}\n\n\t\t\tif ( attributeDivisors[ attribute ] !== 0 ) {\n\n\t\t\t\tvar extension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\textension.vertexAttribDivisorANGLE( attribute, 0 );\n\t\t\t\tattributeDivisors[ attribute ] = 0;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enableAttributeAndDivisor( attribute, meshPerAttribute, extension ) {\n\n\t\t\tnewAttributes[ attribute ] = 1;\n\n\t\t\tif ( enabledAttributes[ attribute ] === 0 ) {\n\n\t\t\t\tgl.enableVertexAttribArray( attribute );\n\t\t\t\tenabledAttributes[ attribute ] = 1;\n\n\t\t\t}\n\n\t\t\tif ( attributeDivisors[ attribute ] !== meshPerAttribute ) {\n\n\t\t\t\textension.vertexAttribDivisorANGLE( attribute, meshPerAttribute );\n\t\t\t\tattributeDivisors[ attribute ] = meshPerAttribute;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disableUnusedAttributes() {\n\n\t\t\tfor ( var i = 0, l = enabledAttributes.length; i !== l; ++ i ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] !== newAttributes[ i ] ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction enable( id ) {\n\n\t\t\tif ( capabilities[ id ] !== true ) {\n\n\t\t\t\tgl.enable( id );\n\t\t\t\tcapabilities[ id ] = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction disable( id ) {\n\n\t\t\tif ( capabilities[ id ] !== false ) {\n\n\t\t\t\tgl.disable( id );\n\t\t\t\tcapabilities[ id ] = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getCompressedTextureFormats() {\n\n\t\t\tif ( compressedTextureFormats === null ) {\n\n\t\t\t\tcompressedTextureFormats = [];\n\n\t\t\t\tif ( extensions.get( 'WEBGL_compressed_texture_pvrtc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_s3tc' ) ||\n\t\t\t\t extensions.get( 'WEBGL_compressed_texture_etc1' ) ) {\n\n\t\t\t\t\tvar formats = gl.getParameter( gl.COMPRESSED_TEXTURE_FORMATS );\n\n\t\t\t\t\tfor ( var i = 0; i < formats.length; i ++ ) {\n\n\t\t\t\t\t\tcompressedTextureFormats.push( formats[ i ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn compressedTextureFormats;\n\n\t\t}\n\n\t\tfunction setBlending( blending, blendEquation, blendSrc, blendDst, blendEquationAlpha, blendSrcAlpha, blendDstAlpha, premultipliedAlpha ) {\n\n\t\t\tif ( blending !== NoBlending ) {\n\n\t\t\t\tenable( gl.BLEND );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.BLEND );\n\n\t\t\t}\n\n\t\t\tif ( blending !== currentBlending || premultipliedAlpha !== currentPremultipledAlpha ) {\n\n\t\t\t\tif ( blending === AdditiveBlending ) {\n\n\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE, gl.ONE, gl.ONE );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFunc( gl.SRC_ALPHA, gl.ONE );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( blending === SubtractiveBlending ) {\n\n\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.ZERO, gl.ONE_MINUS_SRC_COLOR, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.ONE_MINUS_SRC_COLOR );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( blending === MultiplyBlending ) {\n\n\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFuncSeparate( gl.ZERO, gl.SRC_COLOR, gl.ZERO, gl.SRC_ALPHA );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.blendEquation( gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFunc( gl.ZERO, gl.SRC_COLOR );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tif ( premultipliedAlpha ) {\n\n\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFuncSeparate( gl.ONE, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.blendEquationSeparate( gl.FUNC_ADD, gl.FUNC_ADD );\n\t\t\t\t\t\tgl.blendFuncSeparate( gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA, gl.ONE, gl.ONE_MINUS_SRC_ALPHA );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tcurrentBlending = blending;\n\t\t\t\tcurrentPremultipledAlpha = premultipliedAlpha;\n\n\t\t\t}\n\n\t\t\tif ( blending === CustomBlending ) {\n\n\t\t\t\tblendEquationAlpha = blendEquationAlpha || blendEquation;\n\t\t\t\tblendSrcAlpha = blendSrcAlpha || blendSrc;\n\t\t\t\tblendDstAlpha = blendDstAlpha || blendDst;\n\n\t\t\t\tif ( blendEquation !== currentBlendEquation || blendEquationAlpha !== currentBlendEquationAlpha ) {\n\n\t\t\t\t\tgl.blendEquationSeparate( paramThreeToGL( blendEquation ), paramThreeToGL( blendEquationAlpha ) );\n\n\t\t\t\t\tcurrentBlendEquation = blendEquation;\n\t\t\t\t\tcurrentBlendEquationAlpha = blendEquationAlpha;\n\n\t\t\t\t}\n\n\t\t\t\tif ( blendSrc !== currentBlendSrc || blendDst !== currentBlendDst || blendSrcAlpha !== currentBlendSrcAlpha || blendDstAlpha !== currentBlendDstAlpha ) {\n\n\t\t\t\t\tgl.blendFuncSeparate( paramThreeToGL( blendSrc ), paramThreeToGL( blendDst ), paramThreeToGL( blendSrcAlpha ), paramThreeToGL( blendDstAlpha ) );\n\n\t\t\t\t\tcurrentBlendSrc = blendSrc;\n\t\t\t\t\tcurrentBlendDst = blendDst;\n\t\t\t\t\tcurrentBlendSrcAlpha = blendSrcAlpha;\n\t\t\t\t\tcurrentBlendDstAlpha = blendDstAlpha;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tcurrentBlendEquation = null;\n\t\t\t\tcurrentBlendSrc = null;\n\t\t\t\tcurrentBlendDst = null;\n\t\t\t\tcurrentBlendEquationAlpha = null;\n\t\t\t\tcurrentBlendSrcAlpha = null;\n\t\t\t\tcurrentBlendDstAlpha = null;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// TODO Deprecate\n\n\t\tfunction setColorWrite( colorWrite ) {\n\n\t\t\tcolorBuffer.setMask( colorWrite );\n\n\t\t}\n\n\t\tfunction setDepthTest( depthTest ) {\n\n\t\t\tdepthBuffer.setTest( depthTest );\n\n\t\t}\n\n\t\tfunction setDepthWrite( depthWrite ) {\n\n\t\t\tdepthBuffer.setMask( depthWrite );\n\n\t\t}\n\n\t\tfunction setDepthFunc( depthFunc ) {\n\n\t\t\tdepthBuffer.setFunc( depthFunc );\n\n\t\t}\n\n\t\tfunction setStencilTest( stencilTest ) {\n\n\t\t\tstencilBuffer.setTest( stencilTest );\n\n\t\t}\n\n\t\tfunction setStencilWrite( stencilWrite ) {\n\n\t\t\tstencilBuffer.setMask( stencilWrite );\n\n\t\t}\n\n\t\tfunction setStencilFunc( stencilFunc, stencilRef, stencilMask ) {\n\n\t\t\tstencilBuffer.setFunc( stencilFunc, stencilRef, stencilMask );\n\n\t\t}\n\n\t\tfunction setStencilOp( stencilFail, stencilZFail, stencilZPass ) {\n\n\t\t\tstencilBuffer.setOp( stencilFail, stencilZFail, stencilZPass );\n\n\t\t}\n\n\t\t//\n\n\t\tfunction setFlipSided( flipSided ) {\n\n\t\t\tif ( currentFlipSided !== flipSided ) {\n\n\t\t\t\tif ( flipSided ) {\n\n\t\t\t\t\tgl.frontFace( gl.CW );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tgl.frontFace( gl.CCW );\n\n\t\t\t\t}\n\n\t\t\t\tcurrentFlipSided = flipSided;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setCullFace( cullFace ) {\n\n\t\t\tif ( cullFace !== CullFaceNone ) {\n\n\t\t\t\tenable( gl.CULL_FACE );\n\n\t\t\t\tif ( cullFace !== currentCullFace ) {\n\n\t\t\t\t\tif ( cullFace === CullFaceBack ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.BACK );\n\n\t\t\t\t\t} else if ( cullFace === CullFaceFront ) {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tgl.cullFace( gl.FRONT_AND_BACK );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.CULL_FACE );\n\n\t\t\t}\n\n\t\t\tcurrentCullFace = cullFace;\n\n\t\t}\n\n\t\tfunction setLineWidth( width ) {\n\n\t\t\tif ( width !== currentLineWidth ) {\n\n\t\t\t\tgl.lineWidth( width );\n\n\t\t\t\tcurrentLineWidth = width;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction setPolygonOffset( polygonOffset, factor, units ) {\n\n\t\t\tif ( polygonOffset ) {\n\n\t\t\t\tenable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t\tif ( currentPolygonOffsetFactor !== factor || currentPolygonOffsetUnits !== units ) {\n\n\t\t\t\t\tgl.polygonOffset( factor, units );\n\n\t\t\t\t\tcurrentPolygonOffsetFactor = factor;\n\t\t\t\t\tcurrentPolygonOffsetUnits = units;\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.POLYGON_OFFSET_FILL );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction getScissorTest() {\n\n\t\t\treturn currentScissorTest;\n\n\t\t}\n\n\t\tfunction setScissorTest( scissorTest ) {\n\n\t\t\tcurrentScissorTest = scissorTest;\n\n\t\t\tif ( scissorTest ) {\n\n\t\t\t\tenable( gl.SCISSOR_TEST );\n\n\t\t\t} else {\n\n\t\t\t\tdisable( gl.SCISSOR_TEST );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// texture\n\n\t\tfunction activeTexture( webglSlot ) {\n\n\t\t\tif ( webglSlot === undefined ) webglSlot = gl.TEXTURE0 + maxTextures - 1;\n\n\t\t\tif ( currentTextureSlot !== webglSlot ) {\n\n\t\t\t\tgl.activeTexture( webglSlot );\n\t\t\t\tcurrentTextureSlot = webglSlot;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction bindTexture( webglType, webglTexture ) {\n\n\t\t\tif ( currentTextureSlot === null ) {\n\n\t\t\t\tactiveTexture();\n\n\t\t\t}\n\n\t\t\tvar boundTexture = currentBoundTextures[ currentTextureSlot ];\n\n\t\t\tif ( boundTexture === undefined ) {\n\n\t\t\t\tboundTexture = { type: undefined, texture: undefined };\n\t\t\t\tcurrentBoundTextures[ currentTextureSlot ] = boundTexture;\n\n\t\t\t}\n\n\t\t\tif ( boundTexture.type !== webglType || boundTexture.texture !== webglTexture ) {\n\n\t\t\t\tgl.bindTexture( webglType, webglTexture || emptyTextures[ webglType ] );\n\n\t\t\t\tboundTexture.type = webglType;\n\t\t\t\tboundTexture.texture = webglTexture;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction compressedTexImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.compressedTexImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( error );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction texImage2D() {\n\n\t\t\ttry {\n\n\t\t\t\tgl.texImage2D.apply( gl, arguments );\n\n\t\t\t} catch ( error ) {\n\n\t\t\t\tconsole.error( error );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// TODO Deprecate\n\n\t\tfunction clearColor( r, g, b, a ) {\n\n\t\t\tcolorBuffer.setClear( r, g, b, a );\n\n\t\t}\n\n\t\tfunction clearDepth( depth ) {\n\n\t\t\tdepthBuffer.setClear( depth );\n\n\t\t}\n\n\t\tfunction clearStencil( stencil ) {\n\n\t\t\tstencilBuffer.setClear( stencil );\n\n\t\t}\n\n\t\t//\n\n\t\tfunction scissor( scissor ) {\n\n\t\t\tif ( currentScissor.equals( scissor ) === false ) {\n\n\t\t\t\tgl.scissor( scissor.x, scissor.y, scissor.z, scissor.w );\n\t\t\t\tcurrentScissor.copy( scissor );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction viewport( viewport ) {\n\n\t\t\tif ( currentViewport.equals( viewport ) === false ) {\n\n\t\t\t\tgl.viewport( viewport.x, viewport.y, viewport.z, viewport.w );\n\t\t\t\tcurrentViewport.copy( viewport );\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\n\t\tfunction reset() {\n\n\t\t\tfor ( var i = 0; i < enabledAttributes.length; i ++ ) {\n\n\t\t\t\tif ( enabledAttributes[ i ] === 1 ) {\n\n\t\t\t\t\tgl.disableVertexAttribArray( i );\n\t\t\t\t\tenabledAttributes[ i ] = 0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tcapabilities = {};\n\n\t\t\tcompressedTextureFormats = null;\n\n\t\t\tcurrentTextureSlot = null;\n\t\t\tcurrentBoundTextures = {};\n\n\t\t\tcurrentBlending = null;\n\n\t\t\tcurrentFlipSided = null;\n\t\t\tcurrentCullFace = null;\n\n\t\t\tcolorBuffer.reset();\n\t\t\tdepthBuffer.reset();\n\t\t\tstencilBuffer.reset();\n\n\t\t}\n\n\t\treturn {\n\n\t\t\tbuffers: {\n\t\t\t\tcolor: colorBuffer,\n\t\t\t\tdepth: depthBuffer,\n\t\t\t\tstencil: stencilBuffer\n\t\t\t},\n\n\t\t\tinit: init,\n\t\t\tinitAttributes: initAttributes,\n\t\t\tenableAttribute: enableAttribute,\n\t\t\tenableAttributeAndDivisor: enableAttributeAndDivisor,\n\t\t\tdisableUnusedAttributes: disableUnusedAttributes,\n\t\t\tenable: enable,\n\t\t\tdisable: disable,\n\t\t\tgetCompressedTextureFormats: getCompressedTextureFormats,\n\n\t\t\tsetBlending: setBlending,\n\n\t\t\tsetColorWrite: setColorWrite,\n\t\t\tsetDepthTest: setDepthTest,\n\t\t\tsetDepthWrite: setDepthWrite,\n\t\t\tsetDepthFunc: setDepthFunc,\n\t\t\tsetStencilTest: setStencilTest,\n\t\t\tsetStencilWrite: setStencilWrite,\n\t\t\tsetStencilFunc: setStencilFunc,\n\t\t\tsetStencilOp: setStencilOp,\n\n\t\t\tsetFlipSided: setFlipSided,\n\t\t\tsetCullFace: setCullFace,\n\n\t\t\tsetLineWidth: setLineWidth,\n\t\t\tsetPolygonOffset: setPolygonOffset,\n\n\t\t\tgetScissorTest: getScissorTest,\n\t\t\tsetScissorTest: setScissorTest,\n\n\t\t\tactiveTexture: activeTexture,\n\t\t\tbindTexture: bindTexture,\n\t\t\tcompressedTexImage2D: compressedTexImage2D,\n\t\t\ttexImage2D: texImage2D,\n\n\t\t\tclearColor: clearColor,\n\t\t\tclearDepth: clearDepth,\n\t\t\tclearStencil: clearStencil,\n\n\t\t\tscissor: scissor,\n\t\t\tviewport: viewport,\n\n\t\t\treset: reset\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLCapabilities( gl, extensions, parameters ) {\n\n\t\tvar maxAnisotropy;\n\n\t\tfunction getMaxAnisotropy() {\n\n\t\t\tif ( maxAnisotropy !== undefined ) return maxAnisotropy;\n\n\t\t\tvar extension = extensions.get( 'EXT_texture_filter_anisotropic' );\n\n\t\t\tif ( extension !== null ) {\n\n\t\t\t\tmaxAnisotropy = gl.getParameter( extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT );\n\n\t\t\t} else {\n\n\t\t\t\tmaxAnisotropy = 0;\n\n\t\t\t}\n\n\t\t\treturn maxAnisotropy;\n\n\t\t}\n\n\t\tfunction getMaxPrecision( precision ) {\n\n\t\t\tif ( precision === 'highp' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.HIGH_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.HIGH_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'highp';\n\n\t\t\t\t}\n\n\t\t\t\tprecision = 'mediump';\n\n\t\t\t}\n\n\t\t\tif ( precision === 'mediump' ) {\n\n\t\t\t\tif ( gl.getShaderPrecisionFormat( gl.VERTEX_SHADER, gl.MEDIUM_FLOAT ).precision > 0 &&\n\t\t\t\t gl.getShaderPrecisionFormat( gl.FRAGMENT_SHADER, gl.MEDIUM_FLOAT ).precision > 0 ) {\n\n\t\t\t\t\treturn 'mediump';\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn 'lowp';\n\n\t\t}\n\n\t\tvar precision = parameters.precision !== undefined ? parameters.precision : 'highp';\n\t\tvar maxPrecision = getMaxPrecision( precision );\n\n\t\tif ( maxPrecision !== precision ) {\n\n\t\t\tconsole.warn( 'THREE.WebGLRenderer:', precision, 'not supported, using', maxPrecision, 'instead.' );\n\t\t\tprecision = maxPrecision;\n\n\t\t}\n\n\t\tvar logarithmicDepthBuffer = parameters.logarithmicDepthBuffer === true && !! extensions.get( 'EXT_frag_depth' );\n\n\t\tvar maxTextures = gl.getParameter( gl.MAX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxVertexTextures = gl.getParameter( gl.MAX_VERTEX_TEXTURE_IMAGE_UNITS );\n\t\tvar maxTextureSize = gl.getParameter( gl.MAX_TEXTURE_SIZE );\n\t\tvar maxCubemapSize = gl.getParameter( gl.MAX_CUBE_MAP_TEXTURE_SIZE );\n\n\t\tvar maxAttributes = gl.getParameter( gl.MAX_VERTEX_ATTRIBS );\n\t\tvar maxVertexUniforms = gl.getParameter( gl.MAX_VERTEX_UNIFORM_VECTORS );\n\t\tvar maxVaryings = gl.getParameter( gl.MAX_VARYING_VECTORS );\n\t\tvar maxFragmentUniforms = gl.getParameter( gl.MAX_FRAGMENT_UNIFORM_VECTORS );\n\n\t\tvar vertexTextures = maxVertexTextures > 0;\n\t\tvar floatFragmentTextures = !! extensions.get( 'OES_texture_float' );\n\t\tvar floatVertexTextures = vertexTextures && floatFragmentTextures;\n\n\t\treturn {\n\n\t\t\tgetMaxAnisotropy: getMaxAnisotropy,\n\t\t\tgetMaxPrecision: getMaxPrecision,\n\n\t\t\tprecision: precision,\n\t\t\tlogarithmicDepthBuffer: logarithmicDepthBuffer,\n\n\t\t\tmaxTextures: maxTextures,\n\t\t\tmaxVertexTextures: maxVertexTextures,\n\t\t\tmaxTextureSize: maxTextureSize,\n\t\t\tmaxCubemapSize: maxCubemapSize,\n\n\t\t\tmaxAttributes: maxAttributes,\n\t\t\tmaxVertexUniforms: maxVertexUniforms,\n\t\t\tmaxVaryings: maxVaryings,\n\t\t\tmaxFragmentUniforms: maxFragmentUniforms,\n\n\t\t\tvertexTextures: vertexTextures,\n\t\t\tfloatFragmentTextures: floatFragmentTextures,\n\t\t\tfloatVertexTextures: floatVertexTextures\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WebGLExtensions( gl ) {\n\n\t\tvar extensions = {};\n\n\t\treturn {\n\n\t\t\tget: function ( name ) {\n\n\t\t\t\tif ( extensions[ name ] !== undefined ) {\n\n\t\t\t\t\treturn extensions[ name ];\n\n\t\t\t\t}\n\n\t\t\t\tvar extension;\n\n\t\t\t\tswitch ( name ) {\n\n\t\t\t\t\tcase 'WEBGL_depth_texture':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_depth_texture' ) || gl.getExtension( 'MOZ_WEBGL_depth_texture' ) || gl.getExtension( 'WEBKIT_WEBGL_depth_texture' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'EXT_texture_filter_anisotropic':\n\t\t\t\t\t\textension = gl.getExtension( 'EXT_texture_filter_anisotropic' ) || gl.getExtension( 'MOZ_EXT_texture_filter_anisotropic' ) || gl.getExtension( 'WEBKIT_EXT_texture_filter_anisotropic' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_s3tc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'MOZ_WEBGL_compressed_texture_s3tc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_s3tc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_pvrtc':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_pvrtc' ) || gl.getExtension( 'WEBKIT_WEBGL_compressed_texture_pvrtc' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'WEBGL_compressed_texture_etc1':\n\t\t\t\t\t\textension = gl.getExtension( 'WEBGL_compressed_texture_etc1' );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\t\t\t\t\t\textension = gl.getExtension( name );\n\n\t\t\t\t}\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: ' + name + ' extension not supported.' );\n\n\t\t\t\t}\n\n\t\t\t\textensions[ name ] = extension;\n\n\t\t\t\treturn extension;\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction WebGLClipping() {\n\n\t\tvar scope = this,\n\n\t\t\tglobalState = null,\n\t\t\tnumGlobalPlanes = 0,\n\t\t\tlocalClippingEnabled = false,\n\t\t\trenderingShadows = false,\n\n\t\t\tplane = new Plane(),\n\t\t\tviewNormalMatrix = new Matrix3(),\n\n\t\t\tuniform = { value: null, needsUpdate: false };\n\n\t\tthis.uniform = uniform;\n\t\tthis.numPlanes = 0;\n\t\tthis.numIntersection = 0;\n\n\t\tthis.init = function( planes, enableLocalClipping, camera ) {\n\n\t\t\tvar enabled =\n\t\t\t\tplanes.length !== 0 ||\n\t\t\t\tenableLocalClipping ||\n\t\t\t\t// enable state of previous frame - the clipping code has to\n\t\t\t\t// run another frame in order to reset the state:\n\t\t\t\tnumGlobalPlanes !== 0 ||\n\t\t\t\tlocalClippingEnabled;\n\n\t\t\tlocalClippingEnabled = enableLocalClipping;\n\n\t\t\tglobalState = projectPlanes( planes, camera, 0 );\n\t\t\tnumGlobalPlanes = planes.length;\n\n\t\t\treturn enabled;\n\n\t\t};\n\n\t\tthis.beginShadows = function() {\n\n\t\t\trenderingShadows = true;\n\t\t\tprojectPlanes( null );\n\n\t\t};\n\n\t\tthis.endShadows = function() {\n\n\t\t\trenderingShadows = false;\n\t\t\tresetGlobalState();\n\n\t\t};\n\n\t\tthis.setState = function( planes, clipIntersection, clipShadows, camera, cache, fromCache ) {\n\n\t\t\tif ( ! localClippingEnabled ||\n\t\t\t\t\tplanes === null || planes.length === 0 ||\n\t\t\t\t\trenderingShadows && ! clipShadows ) {\n\t\t\t\t// there's no local clipping\n\n\t\t\t\tif ( renderingShadows ) {\n\t\t\t\t\t// there's no global clipping\n\n\t\t\t\t\tprojectPlanes( null );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tresetGlobalState();\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar nGlobal = renderingShadows ? 0 : numGlobalPlanes,\n\t\t\t\t\tlGlobal = nGlobal * 4,\n\n\t\t\t\t\tdstArray = cache.clippingState || null;\n\n\t\t\t\tuniform.value = dstArray; // ensure unique state\n\n\t\t\t\tdstArray = projectPlanes( planes, camera, lGlobal, fromCache );\n\n\t\t\t\tfor ( var i = 0; i !== lGlobal; ++ i ) {\n\n\t\t\t\t\tdstArray[ i ] = globalState[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcache.clippingState = dstArray;\n\t\t\t\tthis.numIntersection = clipIntersection ? this.numPlanes : 0;\n\t\t\t\tthis.numPlanes += nGlobal;\n\n\t\t\t}\n\n\n\t\t};\n\n\t\tfunction resetGlobalState() {\n\n\t\t\tif ( uniform.value !== globalState ) {\n\n\t\t\t\tuniform.value = globalState;\n\t\t\t\tuniform.needsUpdate = numGlobalPlanes > 0;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = numGlobalPlanes;\n\t\t\tscope.numIntersection = 0;\n\n\t\t}\n\n\t\tfunction projectPlanes( planes, camera, dstOffset, skipTransform ) {\n\n\t\t\tvar nPlanes = planes !== null ? planes.length : 0,\n\t\t\t\tdstArray = null;\n\n\t\t\tif ( nPlanes !== 0 ) {\n\n\t\t\t\tdstArray = uniform.value;\n\n\t\t\t\tif ( skipTransform !== true || dstArray === null ) {\n\n\t\t\t\t\tvar flatSize = dstOffset + nPlanes * 4,\n\t\t\t\t\t\tviewMatrix = camera.matrixWorldInverse;\n\n\t\t\t\t\tviewNormalMatrix.getNormalMatrix( viewMatrix );\n\n\t\t\t\t\tif ( dstArray === null || dstArray.length < flatSize ) {\n\n\t\t\t\t\t\tdstArray = new Float32Array( flatSize );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var i = 0, i4 = dstOffset;\n\t\t\t\t\t\t\t\t\t\ti !== nPlanes; ++ i, i4 += 4 ) {\n\n\t\t\t\t\t\tplane.copy( planes[ i ] ).\n\t\t\t\t\t\t\t\tapplyMatrix4( viewMatrix, viewNormalMatrix );\n\n\t\t\t\t\t\tplane.normal.toArray( dstArray, i4 );\n\t\t\t\t\t\tdstArray[ i4 + 3 ] = plane.constant;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tuniform.value = dstArray;\n\t\t\t\tuniform.needsUpdate = true;\n\n\t\t\t}\n\n\t\t\tscope.numPlanes = nPlanes;\n\t\t\t\n\t\t\treturn dstArray;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author supereggbert / http://www.paulbrunt.co.uk/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author szimek / https://github.com/szimek/\n\t * @author tschw\n\t */\n\n\tfunction WebGLRenderer( parameters ) {\n\n\t\tconsole.log( 'THREE.WebGLRenderer', REVISION );\n\n\t\tparameters = parameters || {};\n\n\t\tvar _canvas = parameters.canvas !== undefined ? parameters.canvas : document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' ),\n\t\t_context = parameters.context !== undefined ? parameters.context : null,\n\n\t\t_alpha = parameters.alpha !== undefined ? parameters.alpha : false,\n\t\t_depth = parameters.depth !== undefined ? parameters.depth : true,\n\t\t_stencil = parameters.stencil !== undefined ? parameters.stencil : true,\n\t\t_antialias = parameters.antialias !== undefined ? parameters.antialias : false,\n\t\t_premultipliedAlpha = parameters.premultipliedAlpha !== undefined ? parameters.premultipliedAlpha : true,\n\t\t_preserveDrawingBuffer = parameters.preserveDrawingBuffer !== undefined ? parameters.preserveDrawingBuffer : false;\n\n\t\tvar lights = [];\n\n\t\tvar opaqueObjects = [];\n\t\tvar opaqueObjectsLastIndex = - 1;\n\t\tvar transparentObjects = [];\n\t\tvar transparentObjectsLastIndex = - 1;\n\n\t\tvar morphInfluences = new Float32Array( 8 );\n\n\t\tvar sprites = [];\n\t\tvar lensFlares = [];\n\n\t\t// public properties\n\n\t\tthis.domElement = _canvas;\n\t\tthis.context = null;\n\n\t\t// clearing\n\n\t\tthis.autoClear = true;\n\t\tthis.autoClearColor = true;\n\t\tthis.autoClearDepth = true;\n\t\tthis.autoClearStencil = true;\n\n\t\t// scene graph\n\n\t\tthis.sortObjects = true;\n\n\t\t// user-defined clipping\n\n\t\tthis.clippingPlanes = [];\n\t\tthis.localClippingEnabled = false;\n\n\t\t// physically based shading\n\n\t\tthis.gammaFactor = 2.0;\t// for backwards compatibility\n\t\tthis.gammaInput = false;\n\t\tthis.gammaOutput = false;\n\n\t\t// physical lights\n\n\t\tthis.physicallyCorrectLights = false;\n\n\t\t// tone mapping\n\n\t\tthis.toneMapping = LinearToneMapping;\n\t\tthis.toneMappingExposure = 1.0;\n\t\tthis.toneMappingWhitePoint = 1.0;\n\n\t\t// morphs\n\n\t\tthis.maxMorphTargets = 8;\n\t\tthis.maxMorphNormals = 4;\n\n\t\t// internal properties\n\n\t\tvar _this = this,\n\n\t\t// internal state cache\n\n\t\t_currentProgram = null,\n\t\t_currentRenderTarget = null,\n\t\t_currentFramebuffer = null,\n\t\t_currentMaterialId = - 1,\n\t\t_currentGeometryProgram = '',\n\t\t_currentCamera = null,\n\n\t\t_currentScissor = new Vector4(),\n\t\t_currentScissorTest = null,\n\n\t\t_currentViewport = new Vector4(),\n\n\t\t//\n\n\t\t_usedTextureUnits = 0,\n\n\t\t//\n\n\t\t_clearColor = new Color( 0x000000 ),\n\t\t_clearAlpha = 0,\n\n\t\t_width = _canvas.width,\n\t\t_height = _canvas.height,\n\n\t\t_pixelRatio = 1,\n\n\t\t_scissor = new Vector4( 0, 0, _width, _height ),\n\t\t_scissorTest = false,\n\n\t\t_viewport = new Vector4( 0, 0, _width, _height ),\n\n\t\t// frustum\n\n\t\t_frustum = new Frustum(),\n\n\t\t// clipping\n\n\t\t_clipping = new WebGLClipping(),\n\t\t_clippingEnabled = false,\n\t\t_localClippingEnabled = false,\n\n\t\t_sphere = new Sphere(),\n\n\t\t// camera matrices cache\n\n\t\t_projScreenMatrix = new Matrix4(),\n\n\t\t_vector3 = new Vector3(),\n\n\t\t// light arrays cache\n\n\t\t_lights = {\n\n\t\t\thash: '',\n\n\t\t\tambient: [ 0, 0, 0 ],\n\t\t\tdirectional: [],\n\t\t\tdirectionalShadowMap: [],\n\t\t\tdirectionalShadowMatrix: [],\n\t\t\tspot: [],\n\t\t\tspotShadowMap: [],\n\t\t\tspotShadowMatrix: [],\n\t\t\tpoint: [],\n\t\t\tpointShadowMap: [],\n\t\t\tpointShadowMatrix: [],\n\t\t\themi: [],\n\n\t\t\tshadows: []\n\n\t\t},\n\n\t\t// info\n\n\t\t_infoRender = {\n\n\t\t\tcalls: 0,\n\t\t\tvertices: 0,\n\t\t\tfaces: 0,\n\t\t\tpoints: 0\n\n\t\t};\n\n\t\tthis.info = {\n\n\t\t\trender: _infoRender,\n\t\t\tmemory: {\n\n\t\t\t\tgeometries: 0,\n\t\t\t\ttextures: 0\n\n\t\t\t},\n\t\t\tprograms: null\n\n\t\t};\n\n\n\t\t// initialize\n\n\t\tvar _gl;\n\n\t\ttry {\n\n\t\t\tvar attributes = {\n\t\t\t\talpha: _alpha,\n\t\t\t\tdepth: _depth,\n\t\t\t\tstencil: _stencil,\n\t\t\t\tantialias: _antialias,\n\t\t\t\tpremultipliedAlpha: _premultipliedAlpha,\n\t\t\t\tpreserveDrawingBuffer: _preserveDrawingBuffer\n\t\t\t};\n\n\t\t\t_gl = _context || _canvas.getContext( 'webgl', attributes ) || _canvas.getContext( 'experimental-webgl', attributes );\n\n\t\t\tif ( _gl === null ) {\n\n\t\t\t\tif ( _canvas.getContext( 'webgl' ) !== null ) {\n\n\t\t\t\t\tthrow 'Error creating WebGL context with your selected attributes.';\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthrow 'Error creating WebGL context.';\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// Some experimental-webgl implementations do not have getShaderPrecisionFormat\n\n\t\t\tif ( _gl.getShaderPrecisionFormat === undefined ) {\n\n\t\t\t\t_gl.getShaderPrecisionFormat = function () {\n\n\t\t\t\t\treturn { 'rangeMin': 1, 'rangeMax': 1, 'precision': 1 };\n\n\t\t\t\t};\n\n\t\t\t}\n\n\t\t\t_canvas.addEventListener( 'webglcontextlost', onContextLost, false );\n\n\t\t} catch ( error ) {\n\n\t\t\tconsole.error( 'THREE.WebGLRenderer: ' + error );\n\n\t\t}\n\n\t\tvar extensions = new WebGLExtensions( _gl );\n\n\t\textensions.get( 'WEBGL_depth_texture' );\n\t\textensions.get( 'OES_texture_float' );\n\t\textensions.get( 'OES_texture_float_linear' );\n\t\textensions.get( 'OES_texture_half_float' );\n\t\textensions.get( 'OES_texture_half_float_linear' );\n\t\textensions.get( 'OES_standard_derivatives' );\n\t\textensions.get( 'ANGLE_instanced_arrays' );\n\n\t\tif ( extensions.get( 'OES_element_index_uint' ) ) {\n\n\t\t\tBufferGeometry.MaxIndex = 4294967296;\n\n\t\t}\n\n\t\tvar capabilities = new WebGLCapabilities( _gl, extensions, parameters );\n\n\t\tvar state = new WebGLState( _gl, extensions, paramThreeToGL );\n\t\tvar properties = new WebGLProperties();\n\t\tvar textures = new WebGLTextures( _gl, extensions, state, properties, capabilities, paramThreeToGL, this.info );\n\t\tvar objects = new WebGLObjects( _gl, properties, this.info );\n\t\tvar programCache = new WebGLPrograms( this, capabilities );\n\t\tvar lightCache = new WebGLLights();\n\n\t\tthis.info.programs = programCache.programs;\n\n\t\tvar bufferRenderer = new WebGLBufferRenderer( _gl, extensions, _infoRender );\n\t\tvar indexedBufferRenderer = new WebGLIndexedBufferRenderer( _gl, extensions, _infoRender );\n\n\t\t//\n\n\t\tvar backgroundCamera = new OrthographicCamera( - 1, 1, 1, - 1, 0, 1 );\n\t\tvar backgroundCamera2 = new PerspectiveCamera();\n\t\tvar backgroundPlaneMesh = new Mesh(\n\t\t\tnew PlaneBufferGeometry( 2, 2 ),\n\t\t\tnew MeshBasicMaterial( { depthTest: false, depthWrite: false, fog: false } )\n\t\t);\n\t\tvar backgroundBoxShader = ShaderLib[ 'cube' ];\n\t\tvar backgroundBoxMesh = new Mesh(\n\t\t\tnew BoxBufferGeometry( 5, 5, 5 ),\n\t\t\tnew ShaderMaterial( {\n\t\t\t\tuniforms: backgroundBoxShader.uniforms,\n\t\t\t\tvertexShader: backgroundBoxShader.vertexShader,\n\t\t\t\tfragmentShader: backgroundBoxShader.fragmentShader,\n\t\t\t\tside: BackSide,\n\t\t\t\tdepthTest: false,\n\t\t\t\tdepthWrite: false,\n\t\t\t\tfog: false\n\t\t\t} )\n\t\t);\n\n\t\t//\n\n\t\tfunction getTargetPixelRatio() {\n\n\t\t\treturn _currentRenderTarget === null ? _pixelRatio : 1;\n\n\t\t}\n\n\t\tfunction glClearColor( r, g, b, a ) {\n\n\t\t\tif ( _premultipliedAlpha === true ) {\n\n\t\t\t\tr *= a; g *= a; b *= a;\n\n\t\t\t}\n\n\t\t\tstate.clearColor( r, g, b, a );\n\n\t\t}\n\n\t\tfunction setDefaultGLState() {\n\n\t\t\tstate.init();\n\n\t\t\tstate.scissor( _currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio ) );\n\t\t\tstate.viewport( _currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio ) );\n\n\t\t\tglClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );\n\n\t\t}\n\n\t\tfunction resetGLState() {\n\n\t\t\t_currentProgram = null;\n\t\t\t_currentCamera = null;\n\n\t\t\t_currentGeometryProgram = '';\n\t\t\t_currentMaterialId = - 1;\n\n\t\t\tstate.reset();\n\n\t\t}\n\n\t\tsetDefaultGLState();\n\n\t\tthis.context = _gl;\n\t\tthis.capabilities = capabilities;\n\t\tthis.extensions = extensions;\n\t\tthis.properties = properties;\n\t\tthis.state = state;\n\n\t\t// shadow map\n\n\t\tvar shadowMap = new WebGLShadowMap( this, _lights, objects, capabilities );\n\n\t\tthis.shadowMap = shadowMap;\n\n\n\t\t// Plugins\n\n\t\tvar spritePlugin = new SpritePlugin( this, sprites );\n\t\tvar lensFlarePlugin = new LensFlarePlugin( this, lensFlares );\n\n\t\t// API\n\n\t\tthis.getContext = function () {\n\n\t\t\treturn _gl;\n\n\t\t};\n\n\t\tthis.getContextAttributes = function () {\n\n\t\t\treturn _gl.getContextAttributes();\n\n\t\t};\n\n\t\tthis.forceContextLoss = function () {\n\n\t\t\textensions.get( 'WEBGL_lose_context' ).loseContext();\n\n\t\t};\n\n\t\tthis.getMaxAnisotropy = function () {\n\n\t\t\treturn capabilities.getMaxAnisotropy();\n\n\t\t};\n\n\t\tthis.getPrecision = function () {\n\n\t\t\treturn capabilities.precision;\n\n\t\t};\n\n\t\tthis.getPixelRatio = function () {\n\n\t\t\treturn _pixelRatio;\n\n\t\t};\n\n\t\tthis.setPixelRatio = function ( value ) {\n\n\t\t\tif ( value === undefined ) return;\n\n\t\t\t_pixelRatio = value;\n\n\t\t\tthis.setSize( _viewport.z, _viewport.w, false );\n\n\t\t};\n\n\t\tthis.getSize = function () {\n\n\t\t\treturn {\n\t\t\t\twidth: _width,\n\t\t\t\theight: _height\n\t\t\t};\n\n\t\t};\n\n\t\tthis.setSize = function ( width, height, updateStyle ) {\n\n\t\t\t_width = width;\n\t\t\t_height = height;\n\n\t\t\t_canvas.width = width * _pixelRatio;\n\t\t\t_canvas.height = height * _pixelRatio;\n\n\t\t\tif ( updateStyle !== false ) {\n\n\t\t\t\t_canvas.style.width = width + 'px';\n\t\t\t\t_canvas.style.height = height + 'px';\n\n\t\t\t}\n\n\t\t\tthis.setViewport( 0, 0, width, height );\n\n\t\t};\n\n\t\tthis.setViewport = function ( x, y, width, height ) {\n\n\t\t\tstate.viewport( _viewport.set( x, y, width, height ) );\n\n\t\t};\n\n\t\tthis.setScissor = function ( x, y, width, height ) {\n\n\t\t\tstate.scissor( _scissor.set( x, y, width, height ) );\n\n\t\t};\n\n\t\tthis.setScissorTest = function ( boolean ) {\n\n\t\t\tstate.setScissorTest( _scissorTest = boolean );\n\n\t\t};\n\n\t\t// Clearing\n\n\t\tthis.getClearColor = function () {\n\n\t\t\treturn _clearColor;\n\n\t\t};\n\n\t\tthis.setClearColor = function ( color, alpha ) {\n\n\t\t\t_clearColor.set( color );\n\n\t\t\t_clearAlpha = alpha !== undefined ? alpha : 1;\n\n\t\t\tglClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );\n\n\t\t};\n\n\t\tthis.getClearAlpha = function () {\n\n\t\t\treturn _clearAlpha;\n\n\t\t};\n\n\t\tthis.setClearAlpha = function ( alpha ) {\n\n\t\t\t_clearAlpha = alpha;\n\n\t\t\tglClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );\n\n\t\t};\n\n\t\tthis.clear = function ( color, depth, stencil ) {\n\n\t\t\tvar bits = 0;\n\n\t\t\tif ( color === undefined || color ) bits |= _gl.COLOR_BUFFER_BIT;\n\t\t\tif ( depth === undefined || depth ) bits |= _gl.DEPTH_BUFFER_BIT;\n\t\t\tif ( stencil === undefined || stencil ) bits |= _gl.STENCIL_BUFFER_BIT;\n\n\t\t\t_gl.clear( bits );\n\n\t\t};\n\n\t\tthis.clearColor = function () {\n\n\t\t\tthis.clear( true, false, false );\n\n\t\t};\n\n\t\tthis.clearDepth = function () {\n\n\t\t\tthis.clear( false, true, false );\n\n\t\t};\n\n\t\tthis.clearStencil = function () {\n\n\t\t\tthis.clear( false, false, true );\n\n\t\t};\n\n\t\tthis.clearTarget = function ( renderTarget, color, depth, stencil ) {\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\t\t\tthis.clear( color, depth, stencil );\n\n\t\t};\n\n\t\t// Reset\n\n\t\tthis.resetGLState = resetGLState;\n\n\t\tthis.dispose = function() {\n\n\t\t\ttransparentObjects = [];\n\t\t\ttransparentObjectsLastIndex = -1;\n\t\t\topaqueObjects = [];\n\t\t\topaqueObjectsLastIndex = -1;\n\n\t\t\t_canvas.removeEventListener( 'webglcontextlost', onContextLost, false );\n\n\t\t};\n\n\t\t// Events\n\n\t\tfunction onContextLost( event ) {\n\n\t\t\tevent.preventDefault();\n\n\t\t\tresetGLState();\n\t\t\tsetDefaultGLState();\n\n\t\t\tproperties.clear();\n\n\t\t}\n\n\t\tfunction onMaterialDispose( event ) {\n\n\t\t\tvar material = event.target;\n\n\t\t\tmaterial.removeEventListener( 'dispose', onMaterialDispose );\n\n\t\t\tdeallocateMaterial( material );\n\n\t\t}\n\n\t\t// Buffer deallocation\n\n\t\tfunction deallocateMaterial( material ) {\n\n\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\tproperties.delete( material );\n\n\t\t}\n\n\n\t\tfunction releaseMaterialProgramReference( material ) {\n\n\t\t\tvar programInfo = properties.get( material ).program;\n\n\t\t\tmaterial.program = undefined;\n\n\t\t\tif ( programInfo !== undefined ) {\n\n\t\t\t\tprogramCache.releaseProgram( programInfo );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Buffer rendering\n\n\t\tthis.renderBufferImmediate = function ( object, program, material ) {\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar buffers = properties.get( object );\n\n\t\t\tif ( object.hasPositions && ! buffers.position ) buffers.position = _gl.createBuffer();\n\t\t\tif ( object.hasNormals && ! buffers.normal ) buffers.normal = _gl.createBuffer();\n\t\t\tif ( object.hasUvs && ! buffers.uv ) buffers.uv = _gl.createBuffer();\n\t\t\tif ( object.hasColors && ! buffers.color ) buffers.color = _gl.createBuffer();\n\n\t\t\tvar attributes = program.getAttributes();\n\n\t\t\tif ( object.hasPositions ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.position );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.positionArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( attributes.position );\n\t\t\t\t_gl.vertexAttribPointer( attributes.position, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasNormals ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.normal );\n\n\t\t\t\tif ( ! material.isMeshPhongMaterial &&\n\t\t\t\t ! material.isMeshStandardMaterial &&\n\t\t\t\t material.shading === FlatShading ) {\n\n\t\t\t\t\tfor ( var i = 0, l = object.count * 3; i < l; i += 9 ) {\n\n\t\t\t\t\t\tvar array = object.normalArray;\n\n\t\t\t\t\t\tvar nx = ( array[ i + 0 ] + array[ i + 3 ] + array[ i + 6 ] ) / 3;\n\t\t\t\t\t\tvar ny = ( array[ i + 1 ] + array[ i + 4 ] + array[ i + 7 ] ) / 3;\n\t\t\t\t\t\tvar nz = ( array[ i + 2 ] + array[ i + 5 ] + array[ i + 8 ] ) / 3;\n\n\t\t\t\t\t\tarray[ i + 0 ] = nx;\n\t\t\t\t\t\tarray[ i + 1 ] = ny;\n\t\t\t\t\t\tarray[ i + 2 ] = nz;\n\n\t\t\t\t\t\tarray[ i + 3 ] = nx;\n\t\t\t\t\t\tarray[ i + 4 ] = ny;\n\t\t\t\t\t\tarray[ i + 5 ] = nz;\n\n\t\t\t\t\t\tarray[ i + 6 ] = nx;\n\t\t\t\t\t\tarray[ i + 7 ] = ny;\n\t\t\t\t\t\tarray[ i + 8 ] = nz;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.normalArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( attributes.normal );\n\n\t\t\t\t_gl.vertexAttribPointer( attributes.normal, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasUvs && material.map ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.uv );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.uvArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( attributes.uv );\n\n\t\t\t\t_gl.vertexAttribPointer( attributes.uv, 2, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( object.hasColors && material.vertexColors !== NoColors ) {\n\n\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffers.color );\n\t\t\t\t_gl.bufferData( _gl.ARRAY_BUFFER, object.colorArray, _gl.DYNAMIC_DRAW );\n\n\t\t\t\tstate.enableAttribute( attributes.color );\n\n\t\t\t\t_gl.vertexAttribPointer( attributes.color, 3, _gl.FLOAT, false, 0, 0 );\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t\t_gl.drawArrays( _gl.TRIANGLES, 0, object.count );\n\n\t\t\tobject.count = 0;\n\n\t\t};\n\n\t\tthis.renderBufferDirect = function ( camera, fog, geometry, material, object, group ) {\n\n\t\t\tsetMaterial( material );\n\n\t\t\tvar program = setProgram( camera, fog, material, object );\n\n\t\t\tvar updateBuffers = false;\n\t\t\tvar geometryProgram = geometry.id + '_' + program.id + '_' + material.wireframe;\n\n\t\t\tif ( geometryProgram !== _currentGeometryProgram ) {\n\n\t\t\t\t_currentGeometryProgram = geometryProgram;\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\t// morph targets\n\n\t\t\tvar morphTargetInfluences = object.morphTargetInfluences;\n\n\t\t\tif ( morphTargetInfluences !== undefined ) {\n\n\t\t\t\tvar activeInfluences = [];\n\n\t\t\t\tfor ( var i = 0, l = morphTargetInfluences.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar influence = morphTargetInfluences[ i ];\n\t\t\t\t\tactiveInfluences.push( [ influence, i ] );\n\n\t\t\t\t}\n\n\t\t\t\tactiveInfluences.sort( absNumericalSort );\n\n\t\t\t\tif ( activeInfluences.length > 8 ) {\n\n\t\t\t\t\tactiveInfluences.length = 8;\n\n\t\t\t\t}\n\n\t\t\t\tvar morphAttributes = geometry.morphAttributes;\n\n\t\t\t\tfor ( var i = 0, l = activeInfluences.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar influence = activeInfluences[ i ];\n\t\t\t\t\tmorphInfluences[ i ] = influence[ 0 ];\n\n\t\t\t\t\tif ( influence[ 0 ] !== 0 ) {\n\n\t\t\t\t\t\tvar index = influence[ 1 ];\n\n\t\t\t\t\t\tif ( material.morphTargets === true && morphAttributes.position ) geometry.addAttribute( 'morphTarget' + i, morphAttributes.position[ index ] );\n\t\t\t\t\t\tif ( material.morphNormals === true && morphAttributes.normal ) geometry.addAttribute( 'morphNormal' + i, morphAttributes.normal[ index ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( material.morphTargets === true ) geometry.removeAttribute( 'morphTarget' + i );\n\t\t\t\t\t\tif ( material.morphNormals === true ) geometry.removeAttribute( 'morphNormal' + i );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var i = activeInfluences.length, il = morphInfluences.length; i < il; i ++ ) {\n\n\t\t\t\t\tmorphInfluences[ i ] = 0.0;\n\n\t\t\t\t}\n\n\t\t\t\tprogram.getUniforms().setValue(\n\t\t\t\t\t\t_gl, 'morphTargetInfluences', morphInfluences );\n\n\t\t\t\tupdateBuffers = true;\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar index = geometry.index;\n\t\t\tvar position = geometry.attributes.position;\n\t\t\tvar rangeFactor = 1;\n\n\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\tindex = objects.getWireframeAttribute( geometry );\n\t\t\t\trangeFactor = 2;\n\n\t\t\t}\n\n\t\t\tvar renderer;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\trenderer = indexedBufferRenderer;\n\t\t\t\trenderer.setIndex( index );\n\n\t\t\t} else {\n\n\t\t\t\trenderer = bufferRenderer;\n\n\t\t\t}\n\n\t\t\tif ( updateBuffers ) {\n\n\t\t\t\tsetupVertexAttributes( material, program, geometry );\n\n\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t_gl.bindBuffer( _gl.ELEMENT_ARRAY_BUFFER, objects.getAttributeBuffer( index ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tvar dataCount = 0;\n\n\t\t\tif ( index !== null ) {\n\n\t\t\t\tdataCount = index.count;\n\n\t\t\t} else if ( position !== undefined ) {\n\n\t\t\t\tdataCount = position.count;\n\n\t\t\t}\n\n\t\t\tvar rangeStart = geometry.drawRange.start * rangeFactor;\n\t\t\tvar rangeCount = geometry.drawRange.count * rangeFactor;\n\n\t\t\tvar groupStart = group !== null ? group.start * rangeFactor : 0;\n\t\t\tvar groupCount = group !== null ? group.count * rangeFactor : Infinity;\n\n\t\t\tvar drawStart = Math.max( rangeStart, groupStart );\n\t\t\tvar drawEnd = Math.min( dataCount, rangeStart + rangeCount, groupStart + groupCount ) - 1;\n\n\t\t\tvar drawCount = Math.max( 0, drawEnd - drawStart + 1 );\n\n\t\t\tif ( drawCount === 0 ) return;\n\n\t\t\t//\n\n\t\t\tif ( object.isMesh ) {\n\n\t\t\t\tif ( material.wireframe === true ) {\n\n\t\t\t\t\tstate.setLineWidth( material.wireframeLinewidth * getTargetPixelRatio() );\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tswitch ( object.drawMode ) {\n\n\t\t\t\t\t\tcase TrianglesDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLES );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleStripDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_STRIP );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase TriangleFanDrawMode:\n\t\t\t\t\t\t\trenderer.setMode( _gl.TRIANGLE_FAN );\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\n\t\t\t} else if ( object.isLine ) {\n\n\t\t\t\tvar lineWidth = material.linewidth;\n\n\t\t\t\tif ( lineWidth === undefined ) lineWidth = 1; // Not using Line*Material\n\n\t\t\t\tstate.setLineWidth( lineWidth * getTargetPixelRatio() );\n\n\t\t\t\tif ( object.isLineSegments ) {\n\n\t\t\t\t\trenderer.setMode( _gl.LINES );\n\n\t\t\t\t} else {\n\n\t\t\t\t\trenderer.setMode( _gl.LINE_STRIP );\n\n\t\t\t\t}\n\n\t\t\t} else if ( object.isPoints ) {\n\n\t\t\t\trenderer.setMode( _gl.POINTS );\n\n\t\t\t}\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry ) {\n\n\t\t\t\tif ( geometry.maxInstancedCount > 0 ) {\n\n\t\t\t\t\trenderer.renderInstances( geometry, drawStart, drawCount );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\trenderer.render( drawStart, drawCount );\n\n\t\t\t}\n\n\t\t};\n\n\t\tfunction setupVertexAttributes( material, program, geometry, startIndex ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( geometry && geometry.isInstancedBufferGeometry ) {\n\n\t\t\t\textension = extensions.get( 'ANGLE_instanced_arrays' );\n\n\t\t\t\tif ( extension === null ) {\n\n\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.setupVertexAttributes: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.' );\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( startIndex === undefined ) startIndex = 0;\n\n\t\t\tstate.initAttributes();\n\n\t\t\tvar geometryAttributes = geometry.attributes;\n\n\t\t\tvar programAttributes = program.getAttributes();\n\n\t\t\tvar materialDefaultAttributeValues = material.defaultAttributeValues;\n\n\t\t\tfor ( var name in programAttributes ) {\n\n\t\t\t\tvar programAttribute = programAttributes[ name ];\n\n\t\t\t\tif ( programAttribute >= 0 ) {\n\n\t\t\t\t\tvar geometryAttribute = geometryAttributes[ name ];\n\n\t\t\t\t\tif ( geometryAttribute !== undefined ) {\n\n\t\t\t\t\t\tvar type = _gl.FLOAT;\n\t\t\t\t\t\tvar array = geometryAttribute.array;\n\t\t\t\t\t\tvar normalized = geometryAttribute.normalized;\n\n\t\t\t\t\t\tif ( array instanceof Float32Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.FLOAT;\n\n\t\t\t\t\t\t} else if ( array instanceof Float64Array ) {\n\n\t\t\t\t\t\t\tconsole.warn( \"Unsupported data buffer format: Float64Array\" );\n\n\t\t\t\t\t\t} else if ( array instanceof Uint16Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.UNSIGNED_SHORT;\n\n\t\t\t\t\t\t} else if ( array instanceof Int16Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.SHORT;\n\n\t\t\t\t\t\t} else if ( array instanceof Uint32Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.UNSIGNED_INT;\n\n\t\t\t\t\t\t} else if ( array instanceof Int32Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.INT;\n\n\t\t\t\t\t\t} else if ( array instanceof Int8Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.BYTE;\n\n\t\t\t\t\t\t} else if ( array instanceof Uint8Array ) {\n\n\t\t\t\t\t\t\ttype = _gl.UNSIGNED_BYTE;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tvar size = geometryAttribute.itemSize;\n\t\t\t\t\t\tvar buffer = objects.getAttributeBuffer( geometryAttribute );\n\n\t\t\t\t\t\tif ( geometryAttribute.isInterleavedBufferAttribute ) {\n\n\t\t\t\t\t\t\tvar data = geometryAttribute.data;\n\t\t\t\t\t\t\tvar stride = data.stride;\n\t\t\t\t\t\t\tvar offset = geometryAttribute.offset;\n\n\t\t\t\t\t\t\tif ( data && data.isInstancedInterleavedBuffer ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, data.meshPerAttribute, extension );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = data.meshPerAttribute * data.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, stride * data.array.BYTES_PER_ELEMENT, ( startIndex * stride + offset ) * data.array.BYTES_PER_ELEMENT );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tif ( geometryAttribute.isInstancedBufferAttribute ) {\n\n\t\t\t\t\t\t\t\tstate.enableAttributeAndDivisor( programAttribute, geometryAttribute.meshPerAttribute, extension );\n\n\t\t\t\t\t\t\t\tif ( geometry.maxInstancedCount === undefined ) {\n\n\t\t\t\t\t\t\t\t\tgeometry.maxInstancedCount = geometryAttribute.meshPerAttribute * geometryAttribute.count;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tstate.enableAttribute( programAttribute );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t_gl.bindBuffer( _gl.ARRAY_BUFFER, buffer );\n\t\t\t\t\t\t\t_gl.vertexAttribPointer( programAttribute, size, type, normalized, 0, startIndex * size * geometryAttribute.array.BYTES_PER_ELEMENT );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else if ( materialDefaultAttributeValues !== undefined ) {\n\n\t\t\t\t\t\tvar value = materialDefaultAttributeValues[ name ];\n\n\t\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\t\tswitch ( value.length ) {\n\n\t\t\t\t\t\t\t\tcase 2:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib2fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 3:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib3fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tcase 4:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib4fv( programAttribute, value );\n\t\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\t\t\t_gl.vertexAttrib1fv( programAttribute, value );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tstate.disableUnusedAttributes();\n\n\t\t}\n\n\t\t// Sorting\n\n\t\tfunction absNumericalSort( a, b ) {\n\n\t\t\treturn Math.abs( b[ 0 ] ) - Math.abs( a[ 0 ] );\n\n\t\t}\n\n\t\tfunction painterSortStable( a, b ) {\n\n\t\t\tif ( a.object.renderOrder !== b.object.renderOrder ) {\n\n\t\t\t\treturn a.object.renderOrder - b.object.renderOrder;\n\n\t\t\t} else if ( a.material.program && b.material.program && a.material.program !== b.material.program ) {\n\n\t\t\t\treturn a.material.program.id - b.material.program.id;\n\n\t\t\t} else if ( a.material.id !== b.material.id ) {\n\n\t\t\t\treturn a.material.id - b.material.id;\n\n\t\t\t} else if ( a.z !== b.z ) {\n\n\t\t\t\treturn a.z - b.z;\n\n\t\t\t} else {\n\n\t\t\t\treturn a.id - b.id;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction reversePainterSortStable( a, b ) {\n\n\t\t\tif ( a.object.renderOrder !== b.object.renderOrder ) {\n\n\t\t\t\treturn a.object.renderOrder - b.object.renderOrder;\n\n\t\t\t} if ( a.z !== b.z ) {\n\n\t\t\t\treturn b.z - a.z;\n\n\t\t\t} else {\n\n\t\t\t\treturn a.id - b.id;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Rendering\n\n\t\tthis.render = function ( scene, camera, renderTarget, forceClear ) {\n\n\t\t\tif ( camera !== undefined && camera.isCamera !== true ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// reset caching for this frame\n\n\t\t\t_currentGeometryProgram = '';\n\t\t\t_currentMaterialId = - 1;\n\t\t\t_currentCamera = null;\n\n\t\t\t// update scene graph\n\n\t\t\tif ( scene.autoUpdate === true ) scene.updateMatrixWorld();\n\n\t\t\t// update camera matrices and frustum\n\n\t\t\tif ( camera.parent === null ) camera.updateMatrixWorld();\n\n\t\t\tcamera.matrixWorldInverse.getInverse( camera.matrixWorld );\n\n\t\t\t_projScreenMatrix.multiplyMatrices( camera.projectionMatrix, camera.matrixWorldInverse );\n\t\t\t_frustum.setFromMatrix( _projScreenMatrix );\n\n\t\t\tlights.length = 0;\n\n\t\t\topaqueObjectsLastIndex = - 1;\n\t\t\ttransparentObjectsLastIndex = - 1;\n\n\t\t\tsprites.length = 0;\n\t\t\tlensFlares.length = 0;\n\n\t\t\t_localClippingEnabled = this.localClippingEnabled;\n\t\t\t_clippingEnabled = _clipping.init( this.clippingPlanes, _localClippingEnabled, camera );\n\n\t\t\tprojectObject( scene, camera );\n\n\t\t\topaqueObjects.length = opaqueObjectsLastIndex + 1;\n\t\t\ttransparentObjects.length = transparentObjectsLastIndex + 1;\n\n\t\t\tif ( _this.sortObjects === true ) {\n\n\t\t\t\topaqueObjects.sort( painterSortStable );\n\t\t\t\ttransparentObjects.sort( reversePainterSortStable );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( _clippingEnabled ) _clipping.beginShadows();\n\n\t\t\tsetupShadows( lights );\n\n\t\t\tshadowMap.render( scene, camera );\n\n\t\t\tsetupLights( lights, camera );\n\n\t\t\tif ( _clippingEnabled ) _clipping.endShadows();\n\n\t\t\t//\n\n\t\t\t_infoRender.calls = 0;\n\t\t\t_infoRender.vertices = 0;\n\t\t\t_infoRender.faces = 0;\n\t\t\t_infoRender.points = 0;\n\n\t\t\tif ( renderTarget === undefined ) {\n\n\t\t\t\trenderTarget = null;\n\n\t\t\t}\n\n\t\t\tthis.setRenderTarget( renderTarget );\n\n\t\t\t//\n\n\t\t\tvar background = scene.background;\n\n\t\t\tif ( background === null ) {\n\n\t\t\t\tglClearColor( _clearColor.r, _clearColor.g, _clearColor.b, _clearAlpha );\n\n\t\t\t} else if ( background && background.isColor ) {\n\n\t\t\t\tglClearColor( background.r, background.g, background.b, 1 );\n\t\t\t\tforceClear = true;\n\n\t\t\t}\n\n\t\t\tif ( this.autoClear || forceClear ) {\n\n\t\t\t\tthis.clear( this.autoClearColor, this.autoClearDepth, this.autoClearStencil );\n\n\t\t\t}\n\n\t\t\tif ( background && background.isCubeTexture ) {\n\n\t\t\t\tbackgroundCamera2.projectionMatrix.copy( camera.projectionMatrix );\n\n\t\t\t\tbackgroundCamera2.matrixWorld.extractRotation( camera.matrixWorld );\n\t\t\t\tbackgroundCamera2.matrixWorldInverse.getInverse( backgroundCamera2.matrixWorld );\n\n\t\t\t\tbackgroundBoxMesh.material.uniforms[ \"tCube\" ].value = background;\n\t\t\t\tbackgroundBoxMesh.modelViewMatrix.multiplyMatrices( backgroundCamera2.matrixWorldInverse, backgroundBoxMesh.matrixWorld );\n\n\t\t\t\tobjects.update( backgroundBoxMesh );\n\n\t\t\t\t_this.renderBufferDirect( backgroundCamera2, null, backgroundBoxMesh.geometry, backgroundBoxMesh.material, backgroundBoxMesh, null );\n\n\t\t\t} else if ( background && background.isTexture ) {\n\n\t\t\t\tbackgroundPlaneMesh.material.map = background;\n\n\t\t\t\tobjects.update( backgroundPlaneMesh );\n\n\t\t\t\t_this.renderBufferDirect( backgroundCamera, null, backgroundPlaneMesh.geometry, backgroundPlaneMesh.material, backgroundPlaneMesh, null );\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( scene.overrideMaterial ) {\n\n\t\t\t\tvar overrideMaterial = scene.overrideMaterial;\n\n\t\t\t\trenderObjects( opaqueObjects, scene, camera, overrideMaterial );\n\t\t\t\trenderObjects( transparentObjects, scene, camera, overrideMaterial );\n\n\t\t\t} else {\n\n\t\t\t\t// opaque pass (front-to-back order)\n\n\t\t\t\tstate.setBlending( NoBlending );\n\t\t\t\trenderObjects( opaqueObjects, scene, camera );\n\n\t\t\t\t// transparent pass (back-to-front order)\n\n\t\t\t\trenderObjects( transparentObjects, scene, camera );\n\n\t\t\t}\n\n\t\t\t// custom render plugins (post pass)\n\n\t\t\tspritePlugin.render( scene, camera );\n\t\t\tlensFlarePlugin.render( scene, camera, _currentViewport );\n\n\t\t\t// Generate mipmap if we're using any kind of mipmap filtering\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\ttextures.updateRenderTargetMipmap( renderTarget );\n\n\t\t\t}\n\n\t\t\t// Ensure depth buffer writing is enabled so it can be cleared on next render\n\n\t\t\tstate.setDepthTest( true );\n\t\t\tstate.setDepthWrite( true );\n\t\t\tstate.setColorWrite( true );\n\n\t\t\t// _gl.finish();\n\n\t\t};\n\n\t\tfunction pushRenderItem( object, geometry, material, z, group ) {\n\n\t\t\tvar array, index;\n\n\t\t\t// allocate the next position in the appropriate array\n\n\t\t\tif ( material.transparent ) {\n\n\t\t\t\tarray = transparentObjects;\n\t\t\t\tindex = ++ transparentObjectsLastIndex;\n\n\t\t\t} else {\n\n\t\t\t\tarray = opaqueObjects;\n\t\t\t\tindex = ++ opaqueObjectsLastIndex;\n\n\t\t\t}\n\n\t\t\t// recycle existing render item or grow the array\n\n\t\t\tvar renderItem = array[ index ];\n\n\t\t\tif ( renderItem !== undefined ) {\n\n\t\t\t\trenderItem.id = object.id;\n\t\t\t\trenderItem.object = object;\n\t\t\t\trenderItem.geometry = geometry;\n\t\t\t\trenderItem.material = material;\n\t\t\t\trenderItem.z = _vector3.z;\n\t\t\t\trenderItem.group = group;\n\n\t\t\t} else {\n\n\t\t\t\trenderItem = {\n\t\t\t\t\tid: object.id,\n\t\t\t\t\tobject: object,\n\t\t\t\t\tgeometry: geometry,\n\t\t\t\t\tmaterial: material,\n\t\t\t\t\tz: _vector3.z,\n\t\t\t\t\tgroup: group\n\t\t\t\t};\n\n\t\t\t\t// assert( index === array.length );\n\t\t\t\tarray.push( renderItem );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// TODO Duplicated code (Frustum)\n\n\t\tfunction isObjectViewable( object ) {\n\n\t\t\tvar geometry = object.geometry;\n\n\t\t\tif ( geometry.boundingSphere === null )\n\t\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\t_sphere.copy( geometry.boundingSphere ).\n\t\t\t\tapplyMatrix4( object.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSpriteViewable( sprite ) {\n\n\t\t\t_sphere.center.set( 0, 0, 0 );\n\t\t\t_sphere.radius = 0.7071067811865476;\n\t\t\t_sphere.applyMatrix4( sprite.matrixWorld );\n\n\t\t\treturn isSphereViewable( _sphere );\n\n\t\t}\n\n\t\tfunction isSphereViewable( sphere ) {\n\n\t\t\tif ( ! _frustum.intersectsSphere( sphere ) ) return false;\n\n\t\t\tvar numPlanes = _clipping.numPlanes;\n\n\t\t\tif ( numPlanes === 0 ) return true;\n\n\t\t\tvar planes = _this.clippingPlanes,\n\n\t\t\t\tcenter = sphere.center,\n\t\t\t\tnegRad = - sphere.radius,\n\t\t\t\ti = 0;\n\n\t\t\tdo {\n\n\t\t\t\t// out when deeper than radius in the negative halfspace\n\t\t\t\tif ( planes[ i ].distanceToPoint( center ) < negRad ) return false;\n\n\t\t\t} while ( ++ i !== numPlanes );\n\n\t\t\treturn true;\n\n\t\t}\n\n\t\tfunction projectObject( object, camera ) {\n\n\t\t\tif ( object.visible === false ) return;\n\n\t\t\tvar visible = ( object.layers.mask & camera.layers.mask ) !== 0;\n\n\t\t\tif ( visible ) {\n\n\t\t\t\tif ( object.isLight ) {\n\n\t\t\t\t\tlights.push( object );\n\n\t\t\t\t} else if ( object.isSprite ) {\n\n\t\t\t\t\tif ( object.frustumCulled === false || isSpriteViewable( object ) === true ) {\n\n\t\t\t\t\t\tsprites.push( object );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( object.isLensFlare ) {\n\n\t\t\t\t\tlensFlares.push( object );\n\n\t\t\t\t} else if ( object.isImmediateRenderObject ) {\n\n\t\t\t\t\tif ( _this.sortObjects === true ) {\n\n\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld );\n\t\t\t\t\t\t_vector3.applyProjection( _projScreenMatrix );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tpushRenderItem( object, null, object.material, _vector3.z, null );\n\n\t\t\t\t} else if ( object.isMesh || object.isLine || object.isPoints ) {\n\n\t\t\t\t\tif ( object.isSkinnedMesh ) {\n\n\t\t\t\t\t\tobject.skeleton.update();\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( object.frustumCulled === false || isObjectViewable( object ) === true ) {\n\n\t\t\t\t\t\tvar material = object.material;\n\n\t\t\t\t\t\tif ( material.visible === true ) {\n\n\t\t\t\t\t\t\tif ( _this.sortObjects === true ) {\n\n\t\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( object.matrixWorld );\n\t\t\t\t\t\t\t\t_vector3.applyProjection( _projScreenMatrix );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tvar geometry = objects.update( object );\n\n\t\t\t\t\t\t\tif ( material.isMultiMaterial ) {\n\n\t\t\t\t\t\t\t\tvar groups = geometry.groups;\n\t\t\t\t\t\t\t\tvar materials = material.materials;\n\n\t\t\t\t\t\t\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\t\t\t\t\t\t\tvar group = groups[ i ];\n\t\t\t\t\t\t\t\t\tvar groupMaterial = materials[ group.materialIndex ];\n\n\t\t\t\t\t\t\t\t\tif ( groupMaterial.visible === true ) {\n\n\t\t\t\t\t\t\t\t\t\tpushRenderItem( object, geometry, groupMaterial, _vector3.z, group );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\tpushRenderItem( object, geometry, material, _vector3.z, null );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tprojectObject( children[ i ], camera );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction renderObjects( renderList, scene, camera, overrideMaterial ) {\n\n\t\t\tfor ( var i = 0, l = renderList.length; i < l; i ++ ) {\n\n\t\t\t\tvar renderItem = renderList[ i ];\n\n\t\t\t\tvar object = renderItem.object;\n\t\t\t\tvar geometry = renderItem.geometry;\n\t\t\t\tvar material = overrideMaterial === undefined ? renderItem.material : overrideMaterial;\n\t\t\t\tvar group = renderItem.group;\n\n\t\t\t\tobject.modelViewMatrix.multiplyMatrices( camera.matrixWorldInverse, object.matrixWorld );\n\t\t\t\tobject.normalMatrix.getNormalMatrix( object.modelViewMatrix );\n\n\t\t\t\tobject.onBeforeRender( _this, scene, camera, geometry, material, group );\n\n\t\t\t\tif ( object.isImmediateRenderObject ) {\n\n\t\t\t\t\tsetMaterial( material );\n\n\t\t\t\t\tvar program = setProgram( camera, scene.fog, material, object );\n\n\t\t\t\t\t_currentGeometryProgram = '';\n\n\t\t\t\t\tobject.render( function ( object ) {\n\n\t\t\t\t\t\t_this.renderBufferImmediate( object, program, material );\n\n\t\t\t\t\t} );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t_this.renderBufferDirect( camera, scene.fog, geometry, material, object, group );\n\n\t\t\t\t}\n\n\t\t\t\tobject.onAfterRender( _this, scene, camera, geometry, material, group );\n\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction initMaterial( material, fog, object ) {\n\n\t\t\tvar materialProperties = properties.get( material );\n\n\t\t\tvar parameters = programCache.getParameters(\n\t\t\t\t\tmaterial, _lights, fog, _clipping.numPlanes, _clipping.numIntersection, object );\n\n\t\t\tvar code = programCache.getProgramCode( material, parameters );\n\n\t\t\tvar program = materialProperties.program;\n\t\t\tvar programChange = true;\n\n\t\t\tif ( program === undefined ) {\n\n\t\t\t\t// new material\n\t\t\t\tmaterial.addEventListener( 'dispose', onMaterialDispose );\n\n\t\t\t} else if ( program.code !== code ) {\n\n\t\t\t\t// changed glsl or parameters\n\t\t\t\treleaseMaterialProgramReference( material );\n\n\t\t\t} else if ( parameters.shaderID !== undefined ) {\n\n\t\t\t\t// same glsl and uniform list\n\t\t\t\treturn;\n\n\t\t\t} else {\n\n\t\t\t\t// only rebuild uniform list\n\t\t\t\tprogramChange = false;\n\n\t\t\t}\n\n\t\t\tif ( programChange ) {\n\n\t\t\t\tif ( parameters.shaderID ) {\n\n\t\t\t\t\tvar shader = ShaderLib[ parameters.shaderID ];\n\n\t\t\t\t\tmaterialProperties.__webglShader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: UniformsUtils.clone( shader.uniforms ),\n\t\t\t\t\t\tvertexShader: shader.vertexShader,\n\t\t\t\t\t\tfragmentShader: shader.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t} else {\n\n\t\t\t\t\tmaterialProperties.__webglShader = {\n\t\t\t\t\t\tname: material.type,\n\t\t\t\t\t\tuniforms: material.uniforms,\n\t\t\t\t\t\tvertexShader: material.vertexShader,\n\t\t\t\t\t\tfragmentShader: material.fragmentShader\n\t\t\t\t\t};\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.__webglShader = materialProperties.__webglShader;\n\n\t\t\t\tprogram = programCache.acquireProgram( material, parameters, code );\n\n\t\t\t\tmaterialProperties.program = program;\n\t\t\t\tmaterial.program = program;\n\n\t\t\t}\n\n\t\t\tvar attributes = program.getAttributes();\n\n\t\t\tif ( material.morphTargets ) {\n\n\t\t\t\tmaterial.numSupportedMorphTargets = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphTargets; i ++ ) {\n\n\t\t\t\t\tif ( attributes[ 'morphTarget' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphTargets ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.morphNormals ) {\n\n\t\t\t\tmaterial.numSupportedMorphNormals = 0;\n\n\t\t\t\tfor ( var i = 0; i < _this.maxMorphNormals; i ++ ) {\n\n\t\t\t\t\tif ( attributes[ 'morphNormal' + i ] >= 0 ) {\n\n\t\t\t\t\t\tmaterial.numSupportedMorphNormals ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar uniforms = materialProperties.__webglShader.uniforms;\n\n\t\t\tif ( ! material.isShaderMaterial &&\n\t\t\t ! material.isRawShaderMaterial ||\n\t\t\t material.clipping === true ) {\n\n\t\t\t\tmaterialProperties.numClippingPlanes = _clipping.numPlanes;\n\t\t\t\tmaterialProperties.numIntersection = _clipping.numIntersection;\n\t\t\t\tuniforms.clippingPlanes = _clipping.uniform;\n\n\t\t\t}\n\n\t\t\tmaterialProperties.fog = fog;\n\n\t\t\t// store the light setup it was created for\n\n\t\t\tmaterialProperties.lightsHash = _lights.hash;\n\n\t\t\tif ( material.lights ) {\n\n\t\t\t\t// wire up the material to this renderer's lighting state\n\n\t\t\t\tuniforms.ambientLightColor.value = _lights.ambient;\n\t\t\t\tuniforms.directionalLights.value = _lights.directional;\n\t\t\t\tuniforms.spotLights.value = _lights.spot;\n\t\t\t\tuniforms.pointLights.value = _lights.point;\n\t\t\t\tuniforms.hemisphereLights.value = _lights.hemi;\n\n\t\t\t\tuniforms.directionalShadowMap.value = _lights.directionalShadowMap;\n\t\t\t\tuniforms.directionalShadowMatrix.value = _lights.directionalShadowMatrix;\n\t\t\t\tuniforms.spotShadowMap.value = _lights.spotShadowMap;\n\t\t\t\tuniforms.spotShadowMatrix.value = _lights.spotShadowMatrix;\n\t\t\t\tuniforms.pointShadowMap.value = _lights.pointShadowMap;\n\t\t\t\tuniforms.pointShadowMatrix.value = _lights.pointShadowMatrix;\n\n\t\t\t}\n\n\t\t\tvar progUniforms = materialProperties.program.getUniforms(),\n\t\t\t\tuniformsList =\n\t\t\t\t\t\tWebGLUniforms.seqWithValue( progUniforms.seq, uniforms );\n\n\t\t\tmaterialProperties.uniformsList = uniformsList;\n\n\t\t}\n\n\t\tfunction setMaterial( material ) {\n\n\t\t\tmaterial.side === DoubleSide\n\t\t\t\t? state.disable( _gl.CULL_FACE )\n\t\t\t\t: state.enable( _gl.CULL_FACE );\n\n\t\t\tstate.setFlipSided( material.side === BackSide );\n\n\t\t\tmaterial.transparent === true\n\t\t\t\t? state.setBlending( material.blending, material.blendEquation, material.blendSrc, material.blendDst, material.blendEquationAlpha, material.blendSrcAlpha, material.blendDstAlpha, material.premultipliedAlpha )\n\t\t\t\t: state.setBlending( NoBlending );\n\n\t\t\tstate.setDepthFunc( material.depthFunc );\n\t\t\tstate.setDepthTest( material.depthTest );\n\t\t\tstate.setDepthWrite( material.depthWrite );\n\t\t\tstate.setColorWrite( material.colorWrite );\n\t\t\tstate.setPolygonOffset( material.polygonOffset, material.polygonOffsetFactor, material.polygonOffsetUnits );\n\n\t\t}\n\n\t\tfunction setProgram( camera, fog, material, object ) {\n\n\t\t\t_usedTextureUnits = 0;\n\n\t\t\tvar materialProperties = properties.get( material );\n\n\t\t\tif ( _clippingEnabled ) {\n\n\t\t\t\tif ( _localClippingEnabled || camera !== _currentCamera ) {\n\n\t\t\t\t\tvar useCache =\n\t\t\t\t\t\t\tcamera === _currentCamera &&\n\t\t\t\t\t\t\tmaterial.id === _currentMaterialId;\n\n\t\t\t\t\t// we might want to call this function with some ClippingGroup\n\t\t\t\t\t// object instead of the material, once it becomes feasible\n\t\t\t\t\t// (#8465, #8379)\n\t\t\t\t\t_clipping.setState(\n\t\t\t\t\t\t\tmaterial.clippingPlanes, material.clipIntersection, material.clipShadows,\n\t\t\t\t\t\t\tcamera, materialProperties, useCache );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate === false ) {\n\n\t\t\t\tif ( materialProperties.program === undefined ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.fog && materialProperties.fog !== fog ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( material.lights && materialProperties.lightsHash !== _lights.hash ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t} else if ( materialProperties.numClippingPlanes !== undefined &&\n\t\t\t\t\t( materialProperties.numClippingPlanes !== _clipping.numPlanes || \n\t \t\t\t\t materialProperties.numIntersection !== _clipping.numIntersection ) ) {\n\n\t\t\t\t\tmaterial.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( material.needsUpdate ) {\n\n\t\t\t\tinitMaterial( material, fog, object );\n\t\t\t\tmaterial.needsUpdate = false;\n\n\t\t\t}\n\n\t\t\tvar refreshProgram = false;\n\t\t\tvar refreshMaterial = false;\n\t\t\tvar refreshLights = false;\n\n\t\t\tvar program = materialProperties.program,\n\t\t\t\tp_uniforms = program.getUniforms(),\n\t\t\t\tm_uniforms = materialProperties.__webglShader.uniforms;\n\n\t\t\tif ( program.id !== _currentProgram ) {\n\n\t\t\t\t_gl.useProgram( program.program );\n\t\t\t\t_currentProgram = program.id;\n\n\t\t\t\trefreshProgram = true;\n\t\t\t\trefreshMaterial = true;\n\t\t\t\trefreshLights = true;\n\n\t\t\t}\n\n\t\t\tif ( material.id !== _currentMaterialId ) {\n\n\t\t\t\t_currentMaterialId = material.id;\n\n\t\t\t\trefreshMaterial = true;\n\n\t\t\t}\n\n\t\t\tif ( refreshProgram || camera !== _currentCamera ) {\n\n\t\t\t\tp_uniforms.set( _gl, camera, 'projectionMatrix' );\n\n\t\t\t\tif ( capabilities.logarithmicDepthBuffer ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'logDepthBufFC',\n\t\t\t\t\t\t\t2.0 / ( Math.log( camera.far + 1.0 ) / Math.LN2 ) );\n\n\t\t\t\t}\n\n\n\t\t\t\tif ( camera !== _currentCamera ) {\n\n\t\t\t\t\t_currentCamera = camera;\n\n\t\t\t\t\t// lighting uniforms depend on the camera so enforce an update\n\t\t\t\t\t// now, in case this material supports lights - or later, when\n\t\t\t\t\t// the next material that does gets activated:\n\n\t\t\t\t\trefreshMaterial = true;\t\t// set to true on material change\n\t\t\t\t\trefreshLights = true;\t\t// remains set until update done\n\n\t\t\t\t}\n\n\t\t\t\t// load material specific uniforms\n\t\t\t\t// (shader material also gets them for the sake of genericity)\n\n\t\t\t\tif ( material.isShaderMaterial ||\n\t\t\t\t material.isMeshPhongMaterial ||\n\t\t\t\t material.isMeshStandardMaterial ||\n\t\t\t\t material.envMap ) {\n\n\t\t\t\t\tvar uCamPos = p_uniforms.map.cameraPosition;\n\n\t\t\t\t\tif ( uCamPos !== undefined ) {\n\n\t\t\t\t\t\tuCamPos.setValue( _gl,\n\t\t\t\t\t\t\t\t_vector3.setFromMatrixPosition( camera.matrixWorld ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshPhongMaterial ||\n\t\t\t\t material.isMeshLambertMaterial ||\n\t\t\t\t material.isMeshBasicMaterial ||\n\t\t\t\t material.isMeshStandardMaterial ||\n\t\t\t\t material.isShaderMaterial ||\n\t\t\t\t material.skinning ) {\n\n\t\t\t\t\tp_uniforms.setValue( _gl, 'viewMatrix', camera.matrixWorldInverse );\n\n\t\t\t\t}\n\n\t\t\t\tp_uniforms.set( _gl, _this, 'toneMappingExposure' );\n\t\t\t\tp_uniforms.set( _gl, _this, 'toneMappingWhitePoint' );\n\n\t\t\t}\n\n\t\t\t// skinning uniforms must be set even if material didn't change\n\t\t\t// auto-setting of texture unit for bone texture must go before other textures\n\t\t\t// not sure why, but otherwise weird things happen\n\n\t\t\tif ( material.skinning ) {\n\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrix' );\n\t\t\t\tp_uniforms.setOptional( _gl, object, 'bindMatrixInverse' );\n\n\t\t\t\tvar skeleton = object.skeleton;\n\n\t\t\t\tif ( skeleton ) {\n\n\t\t\t\t\tif ( capabilities.floatVertexTextures && skeleton.useVertexTexture ) {\n\n\t\t\t\t\t\tp_uniforms.set( _gl, skeleton, 'boneTexture' );\n\t\t\t\t\t\tp_uniforms.set( _gl, skeleton, 'boneTextureWidth' );\n\t\t\t\t\t\tp_uniforms.set( _gl, skeleton, 'boneTextureHeight' );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tp_uniforms.setOptional( _gl, skeleton, 'boneMatrices' );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( refreshMaterial ) {\n\n\t\t\t\tif ( material.lights ) {\n\n\t\t\t\t\t// the current material requires lighting info\n\n\t\t\t\t\t// note: all lighting uniforms are always set correctly\n\t\t\t\t\t// they simply reference the renderer's state for their\n\t\t\t\t\t// values\n\t\t\t\t\t//\n\t\t\t\t\t// use the current material's .needsUpdate flags to set\n\t\t\t\t\t// the GL state when required\n\n\t\t\t\t\tmarkUniformsLightsNeedsUpdate( m_uniforms, refreshLights );\n\n\t\t\t\t}\n\n\t\t\t\t// refresh uniforms common to several materials\n\n\t\t\t\tif ( fog && material.fog ) {\n\n\t\t\t\t\trefreshUniformsFog( m_uniforms, fog );\n\n\t\t\t\t}\n\n\t\t\t\tif ( material.isMeshBasicMaterial ||\n\t\t\t\t material.isMeshLambertMaterial ||\n\t\t\t\t material.isMeshPhongMaterial ||\n\t\t\t\t material.isMeshStandardMaterial ||\n\t\t\t\t material.isMeshDepthMaterial ) {\n\n\t\t\t\t\trefreshUniformsCommon( m_uniforms, material );\n\n\t\t\t\t}\n\n\t\t\t\t// refresh single material specific uniforms\n\n\t\t\t\tif ( material.isLineBasicMaterial ) {\n\n\t\t\t\t\trefreshUniformsLine( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isLineDashedMaterial ) {\n\n\t\t\t\t\trefreshUniformsLine( m_uniforms, material );\n\t\t\t\t\trefreshUniformsDash( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isPointsMaterial ) {\n\n\t\t\t\t\trefreshUniformsPoints( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshLambertMaterial ) {\n\n\t\t\t\t\trefreshUniformsLambert( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshPhongMaterial ) {\n\n\t\t\t\t\trefreshUniformsPhong( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshPhysicalMaterial ) {\n\n\t\t\t\t\trefreshUniformsPhysical( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshStandardMaterial ) {\n\n\t\t\t\t\trefreshUniformsStandard( m_uniforms, material );\n\n\t\t\t\t} else if ( material.isMeshDepthMaterial ) {\n\n\t\t\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\t\t\tm_uniforms.displacementMap.value = material.displacementMap;\n\t\t\t\t\t\tm_uniforms.displacementScale.value = material.displacementScale;\n\t\t\t\t\t\tm_uniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( material.isMeshNormalMaterial ) {\n\n\t\t\t\t\tm_uniforms.opacity.value = material.opacity;\n\n\t\t\t\t}\n\n\t\t\t\tWebGLUniforms.upload(\n\t\t\t\t\t\t_gl, materialProperties.uniformsList, m_uniforms, _this );\n\n\t\t\t}\n\n\n\t\t\t// common matrices\n\n\t\t\tp_uniforms.set( _gl, object, 'modelViewMatrix' );\n\t\t\tp_uniforms.set( _gl, object, 'normalMatrix' );\n\t\t\tp_uniforms.setValue( _gl, 'modelMatrix', object.matrixWorld );\n\n\t\t\treturn program;\n\n\t\t}\n\n\t\t// Uniforms (refresh uniforms objects)\n\n\t\tfunction refreshUniformsCommon( uniforms, material ) {\n\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t\tuniforms.diffuse.value = material.color;\n\n\t\t\tif ( material.emissive ) {\n\n\t\t\t\tuniforms.emissive.value.copy( material.emissive ).multiplyScalar( material.emissiveIntensity );\n\n\t\t\t}\n\n\t\t\tuniforms.map.value = material.map;\n\t\t\tuniforms.specularMap.value = material.specularMap;\n\t\t\tuniforms.alphaMap.value = material.alphaMap;\n\n\t\t\tif ( material.aoMap ) {\n\n\t\t\t\tuniforms.aoMap.value = material.aoMap;\n\t\t\t\tuniforms.aoMapIntensity.value = material.aoMapIntensity;\n\n\t\t\t}\n\n\t\t\t// uv repeat and offset setting priorities\n\t\t\t// 1. color map\n\t\t\t// 2. specular map\n\t\t\t// 3. normal map\n\t\t\t// 4. bump map\n\t\t\t// 5. alpha map\n\t\t\t// 6. emissive map\n\n\t\t\tvar uvScaleMap;\n\n\t\t\tif ( material.map ) {\n\n\t\t\t\tuvScaleMap = material.map;\n\n\t\t\t} else if ( material.specularMap ) {\n\n\t\t\t\tuvScaleMap = material.specularMap;\n\n\t\t\t} else if ( material.displacementMap ) {\n\n\t\t\t\tuvScaleMap = material.displacementMap;\n\n\t\t\t} else if ( material.normalMap ) {\n\n\t\t\t\tuvScaleMap = material.normalMap;\n\n\t\t\t} else if ( material.bumpMap ) {\n\n\t\t\t\tuvScaleMap = material.bumpMap;\n\n\t\t\t} else if ( material.roughnessMap ) {\n\n\t\t\t\tuvScaleMap = material.roughnessMap;\n\n\t\t\t} else if ( material.metalnessMap ) {\n\n\t\t\t\tuvScaleMap = material.metalnessMap;\n\n\t\t\t} else if ( material.alphaMap ) {\n\n\t\t\t\tuvScaleMap = material.alphaMap;\n\n\t\t\t} else if ( material.emissiveMap ) {\n\n\t\t\t\tuvScaleMap = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( uvScaleMap !== undefined ) {\n\n\t\t\t\t// backwards compatibility\n\t\t\t\tif ( uvScaleMap.isWebGLRenderTarget ) {\n\n\t\t\t\t\tuvScaleMap = uvScaleMap.texture;\n\n\t\t\t\t}\n\n\t\t\t\tvar offset = uvScaleMap.offset;\n\t\t\t\tvar repeat = uvScaleMap.repeat;\n\n\t\t\t\tuniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );\n\n\t\t\t}\n\n\t\t\tuniforms.envMap.value = material.envMap;\n\n\t\t\t// don't flip CubeTexture envMaps, flip everything else:\n\t\t\t// WebGLRenderTargetCube will be flipped for backwards compatibility\n\t\t\t// WebGLRenderTargetCube.texture will be flipped because it's a Texture and NOT a CubeTexture\n\t\t\t// this check must be handled differently, or removed entirely, if WebGLRenderTargetCube uses a CubeTexture in the future\n\t\t\tuniforms.flipEnvMap.value = ( ! ( material.envMap && material.envMap.isCubeTexture ) ) ? 1 : - 1;\n\n\t\t\tuniforms.reflectivity.value = material.reflectivity;\n\t\t\tuniforms.refractionRatio.value = material.refractionRatio;\n\n\t\t}\n\n\t\tfunction refreshUniformsLine( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\n\t\t}\n\n\t\tfunction refreshUniformsDash( uniforms, material ) {\n\n\t\t\tuniforms.dashSize.value = material.dashSize;\n\t\t\tuniforms.totalSize.value = material.dashSize + material.gapSize;\n\t\t\tuniforms.scale.value = material.scale;\n\n\t\t}\n\n\t\tfunction refreshUniformsPoints( uniforms, material ) {\n\n\t\t\tuniforms.diffuse.value = material.color;\n\t\t\tuniforms.opacity.value = material.opacity;\n\t\t\tuniforms.size.value = material.size * _pixelRatio;\n\t\t\tuniforms.scale.value = _height * 0.5;\n\n\t\t\tuniforms.map.value = material.map;\n\n\t\t\tif ( material.map !== null ) {\n\n\t\t\t\tvar offset = material.map.offset;\n\t\t\t\tvar repeat = material.map.repeat;\n\n\t\t\t\tuniforms.offsetRepeat.value.set( offset.x, offset.y, repeat.x, repeat.y );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsFog( uniforms, fog ) {\n\n\t\t\tuniforms.fogColor.value = fog.color;\n\n\t\t\tif ( fog.isFog ) {\n\n\t\t\t\tuniforms.fogNear.value = fog.near;\n\t\t\t\tuniforms.fogFar.value = fog.far;\n\n\t\t\t} else if ( fog.isFogExp2 ) {\n\n\t\t\t\tuniforms.fogDensity.value = fog.density;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsLambert( uniforms, material ) {\n\n\t\t\tif ( material.lightMap ) {\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhong( uniforms, material ) {\n\n\t\t\tuniforms.specular.value = material.specular;\n\t\t\tuniforms.shininess.value = Math.max( material.shininess, 1e-4 ); // to prevent pow( 0.0, 0.0 )\n\n\t\t\tif ( material.lightMap ) {\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsStandard( uniforms, material ) {\n\n\t\t\tuniforms.roughness.value = material.roughness;\n\t\t\tuniforms.metalness.value = material.metalness;\n\n\t\t\tif ( material.roughnessMap ) {\n\n\t\t\t\tuniforms.roughnessMap.value = material.roughnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.metalnessMap ) {\n\n\t\t\t\tuniforms.metalnessMap.value = material.metalnessMap;\n\n\t\t\t}\n\n\t\t\tif ( material.lightMap ) {\n\n\t\t\t\tuniforms.lightMap.value = material.lightMap;\n\t\t\t\tuniforms.lightMapIntensity.value = material.lightMapIntensity;\n\n\t\t\t}\n\n\t\t\tif ( material.emissiveMap ) {\n\n\t\t\t\tuniforms.emissiveMap.value = material.emissiveMap;\n\n\t\t\t}\n\n\t\t\tif ( material.bumpMap ) {\n\n\t\t\t\tuniforms.bumpMap.value = material.bumpMap;\n\t\t\t\tuniforms.bumpScale.value = material.bumpScale;\n\n\t\t\t}\n\n\t\t\tif ( material.normalMap ) {\n\n\t\t\t\tuniforms.normalMap.value = material.normalMap;\n\t\t\t\tuniforms.normalScale.value.copy( material.normalScale );\n\n\t\t\t}\n\n\t\t\tif ( material.displacementMap ) {\n\n\t\t\t\tuniforms.displacementMap.value = material.displacementMap;\n\t\t\t\tuniforms.displacementScale.value = material.displacementScale;\n\t\t\t\tuniforms.displacementBias.value = material.displacementBias;\n\n\t\t\t}\n\n\t\t\tif ( material.envMap ) {\n\n\t\t\t\t//uniforms.envMap.value = material.envMap; // part of uniforms common\n\t\t\t\tuniforms.envMapIntensity.value = material.envMapIntensity;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction refreshUniformsPhysical( uniforms, material ) {\n\n\t\t\tuniforms.clearCoat.value = material.clearCoat;\n\t\t\tuniforms.clearCoatRoughness.value = material.clearCoatRoughness;\n\n\t\t\trefreshUniformsStandard( uniforms, material );\n\n\t\t}\n\n\t\t// If uniforms are marked as clean, they don't need to be loaded to the GPU.\n\n\t\tfunction markUniformsLightsNeedsUpdate( uniforms, value ) {\n\n\t\t\tuniforms.ambientLightColor.needsUpdate = value;\n\n\t\t\tuniforms.directionalLights.needsUpdate = value;\n\t\t\tuniforms.pointLights.needsUpdate = value;\n\t\t\tuniforms.spotLights.needsUpdate = value;\n\t\t\tuniforms.hemisphereLights.needsUpdate = value;\n\n\t\t}\n\n\t\t// Lighting\n\n\t\tfunction setupShadows( lights ) {\n\n\t\t\tvar lightShadowsLength = 0;\n\n\t\t\tfor ( var i = 0, l = lights.length; i < l; i ++ ) {\n\n\t\t\t\tvar light = lights[ i ];\n\n\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t_lights.shadows[ lightShadowsLength ++ ] = light;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t_lights.shadows.length = lightShadowsLength;\n\n\t\t}\n\n\t\tfunction setupLights( lights, camera ) {\n\n\t\t\tvar l, ll, light,\n\t\t\tr = 0, g = 0, b = 0,\n\t\t\tcolor,\n\t\t\tintensity,\n\t\t\tdistance,\n\t\t\tshadowMap,\n\n\t\t\tviewMatrix = camera.matrixWorldInverse,\n\n\t\t\tdirectionalLength = 0,\n\t\t\tpointLength = 0,\n\t\t\tspotLength = 0,\n\t\t\themiLength = 0;\n\n\t\t\tfor ( l = 0, ll = lights.length; l < ll; l ++ ) {\n\n\t\t\t\tlight = lights[ l ];\n\n\t\t\t\tcolor = light.color;\n\t\t\t\tintensity = light.intensity;\n\t\t\t\tdistance = light.distance;\n\n\t\t\t\tshadowMap = ( light.shadow && light.shadow.map ) ? light.shadow.map.texture : null;\n\n\t\t\t\tif ( light.isAmbientLight ) {\n\n\t\t\t\t\tr += color.r * intensity;\n\t\t\t\t\tg += color.g * intensity;\n\t\t\t\t\tb += color.b * intensity;\n\n\t\t\t\t} else if ( light.isDirectionalLight ) {\n\n\t\t\t\t\tvar uniforms = lightCache.get( light );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\t_vector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( _vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tuniforms.shadowBias = light.shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = light.shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = light.shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t_lights.directionalShadowMap[ directionalLength ] = shadowMap;\n\t\t\t\t\t_lights.directionalShadowMatrix[ directionalLength ] = light.shadow.matrix;\n\t\t\t\t\t_lights.directional[ directionalLength ++ ] = uniforms;\n\n\t\t\t\t} else if ( light.isSpotLight ) {\n\n\t\t\t\t\tvar uniforms = lightCache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.distance = distance;\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\t_vector3.setFromMatrixPosition( light.target.matrixWorld );\n\t\t\t\t\tuniforms.direction.sub( _vector3 );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\n\t\t\t\t\tuniforms.coneCos = Math.cos( light.angle );\n\t\t\t\t\tuniforms.penumbraCos = Math.cos( light.angle * ( 1 - light.penumbra ) );\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tuniforms.shadowBias = light.shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = light.shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = light.shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t_lights.spotShadowMap[ spotLength ] = shadowMap;\n\t\t\t\t\t_lights.spotShadowMatrix[ spotLength ] = light.shadow.matrix;\n\t\t\t\t\t_lights.spot[ spotLength ++ ] = uniforms;\n\n\t\t\t\t} else if ( light.isPointLight ) {\n\n\t\t\t\t\tvar uniforms = lightCache.get( light );\n\n\t\t\t\t\tuniforms.position.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.position.applyMatrix4( viewMatrix );\n\n\t\t\t\t\tuniforms.color.copy( light.color ).multiplyScalar( light.intensity );\n\t\t\t\t\tuniforms.distance = light.distance;\n\t\t\t\t\tuniforms.decay = ( light.distance === 0 ) ? 0.0 : light.decay;\n\n\t\t\t\t\tuniforms.shadow = light.castShadow;\n\n\t\t\t\t\tif ( light.castShadow ) {\n\n\t\t\t\t\t\tuniforms.shadowBias = light.shadow.bias;\n\t\t\t\t\t\tuniforms.shadowRadius = light.shadow.radius;\n\t\t\t\t\t\tuniforms.shadowMapSize = light.shadow.mapSize;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t_lights.pointShadowMap[ pointLength ] = shadowMap;\n\n\t\t\t\t\tif ( _lights.pointShadowMatrix[ pointLength ] === undefined ) {\n\n\t\t\t\t\t\t_lights.pointShadowMatrix[ pointLength ] = new Matrix4();\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// for point lights we set the shadow matrix to be a translation-only matrix\n\t\t\t\t\t// equal to inverse of the light's position\n\t\t\t\t\t_vector3.setFromMatrixPosition( light.matrixWorld ).negate();\n\t\t\t\t\t_lights.pointShadowMatrix[ pointLength ].identity().setPosition( _vector3 );\n\n\t\t\t\t\t_lights.point[ pointLength ++ ] = uniforms;\n\n\t\t\t\t} else if ( light.isHemisphereLight ) {\n\n\t\t\t\t\tvar uniforms = lightCache.get( light );\n\n\t\t\t\t\tuniforms.direction.setFromMatrixPosition( light.matrixWorld );\n\t\t\t\t\tuniforms.direction.transformDirection( viewMatrix );\n\t\t\t\t\tuniforms.direction.normalize();\n\n\t\t\t\t\tuniforms.skyColor.copy( light.color ).multiplyScalar( intensity );\n\t\t\t\t\tuniforms.groundColor.copy( light.groundColor ).multiplyScalar( intensity );\n\n\t\t\t\t\t_lights.hemi[ hemiLength ++ ] = uniforms;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t_lights.ambient[ 0 ] = r;\n\t\t\t_lights.ambient[ 1 ] = g;\n\t\t\t_lights.ambient[ 2 ] = b;\n\n\t\t\t_lights.directional.length = directionalLength;\n\t\t\t_lights.spot.length = spotLength;\n\t\t\t_lights.point.length = pointLength;\n\t\t\t_lights.hemi.length = hemiLength;\n\n\t\t\t_lights.hash = directionalLength + ',' + pointLength + ',' + spotLength + ',' + hemiLength + ',' + _lights.shadows.length;\n\n\t\t}\n\n\t\t// GL state setting\n\n\t\tthis.setFaceCulling = function ( cullFace, frontFaceDirection ) {\n\n\t\t\tstate.setCullFace( cullFace );\n\t\t\tstate.setFlipSided( frontFaceDirection === FrontFaceDirectionCW );\n\n\t\t};\n\n\t\t// Textures\n\n\t\tfunction allocTextureUnit() {\n\n\t\t\tvar textureUnit = _usedTextureUnits;\n\n\t\t\tif ( textureUnit >= capabilities.maxTextures ) {\n\n\t\t\t\tconsole.warn( 'WebGLRenderer: trying to use ' + textureUnit + ' texture units while this GPU supports only ' + capabilities.maxTextures );\n\n\t\t\t}\n\n\t\t\t_usedTextureUnits += 1;\n\n\t\t\treturn textureUnit;\n\n\t\t}\n\n\t\tthis.allocTextureUnit = allocTextureUnit;\n\n\t\t// this.setTexture2D = setTexture2D;\n\t\tthis.setTexture2D = ( function() {\n\n\t\t\tvar warned = false;\n\n\t\t\t// backwards compatibility: peel texture.texture\n\t\t\treturn function setTexture2D( texture, slot ) {\n\n\t\t\t\tif ( texture && texture.isWebGLRenderTarget ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTexture2D: don't use render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTexture = ( function() {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTexture( texture, slot ) {\n\n\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer: .setTexture is deprecated, use setTexture2D instead.\" );\n\t\t\t\t\twarned = true;\n\n\t\t\t\t}\n\n\t\t\t\ttextures.setTexture2D( texture, slot );\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.setTextureCube = ( function() {\n\n\t\t\tvar warned = false;\n\n\t\t\treturn function setTextureCube( texture, slot ) {\n\n\t\t\t\t// backwards compatibility: peel texture.texture\n\t\t\t\tif ( texture && texture.isWebGLRenderTargetCube ) {\n\n\t\t\t\t\tif ( ! warned ) {\n\n\t\t\t\t\t\tconsole.warn( \"THREE.WebGLRenderer.setTextureCube: don't use cube render targets as textures. Use their .texture property instead.\" );\n\t\t\t\t\t\twarned = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture = texture.texture;\n\n\t\t\t\t}\n\n\t\t\t\t// currently relying on the fact that WebGLRenderTargetCube.texture is a Texture and NOT a CubeTexture\n\t\t\t\t// TODO: unify these code paths\n\t\t\t\tif ( ( texture && texture.isCubeTexture ) ||\n\t\t\t\t\t ( Array.isArray( texture.image ) && texture.image.length === 6 ) ) {\n\n\t\t\t\t\t// CompressedTexture can have Array in image :/\n\n\t\t\t\t\t// this function alone should take care of cube textures\n\t\t\t\t\ttextures.setTextureCube( texture, slot );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// assumed: texture property of THREE.WebGLRenderTargetCube\n\n\t\t\t\t\ttextures.setTextureCubeDynamic( texture, slot );\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() );\n\n\t\tthis.getCurrentRenderTarget = function() {\n\n\t\t\treturn _currentRenderTarget;\n\n\t\t};\n\n\t\tthis.setRenderTarget = function ( renderTarget ) {\n\n\t\t\t_currentRenderTarget = renderTarget;\n\n\t\t\tif ( renderTarget && properties.get( renderTarget ).__webglFramebuffer === undefined ) {\n\n\t\t\t\ttextures.setupRenderTarget( renderTarget );\n\n\t\t\t}\n\n\t\t\tvar isCube = ( renderTarget && renderTarget.isWebGLRenderTargetCube );\n\t\t\tvar framebuffer;\n\n\t\t\tif ( renderTarget ) {\n\n\t\t\t\tvar renderTargetProperties = properties.get( renderTarget );\n\n\t\t\t\tif ( isCube ) {\n\n\t\t\t\t\tframebuffer = renderTargetProperties.__webglFramebuffer[ renderTarget.activeCubeFace ];\n\n\t\t\t\t} else {\n\n\t\t\t\t\tframebuffer = renderTargetProperties.__webglFramebuffer;\n\n\t\t\t\t}\n\n\t\t\t\t_currentScissor.copy( renderTarget.scissor );\n\t\t\t\t_currentScissorTest = renderTarget.scissorTest;\n\n\t\t\t\t_currentViewport.copy( renderTarget.viewport );\n\n\t\t\t} else {\n\n\t\t\t\tframebuffer = null;\n\n\t\t\t\t_currentScissor.copy( _scissor ).multiplyScalar( _pixelRatio );\n\t\t\t\t_currentScissorTest = _scissorTest;\n\n\t\t\t\t_currentViewport.copy( _viewport ).multiplyScalar( _pixelRatio );\n\n\t\t\t}\n\n\t\t\tif ( _currentFramebuffer !== framebuffer ) {\n\n\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\t\t\t\t_currentFramebuffer = framebuffer;\n\n\t\t\t}\n\n\t\t\tstate.scissor( _currentScissor );\n\t\t\tstate.setScissorTest( _currentScissorTest );\n\n\t\t\tstate.viewport( _currentViewport );\n\n\t\t\tif ( isCube ) {\n\n\t\t\t\tvar textureProperties = properties.get( renderTarget.texture );\n\t\t\t\t_gl.framebufferTexture2D( _gl.FRAMEBUFFER, _gl.COLOR_ATTACHMENT0, _gl.TEXTURE_CUBE_MAP_POSITIVE_X + renderTarget.activeCubeFace, textureProperties.__webglTexture, renderTarget.activeMipMapLevel );\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.readRenderTargetPixels = function ( renderTarget, x, y, width, height, buffer ) {\n\n\t\t\tif ( ( renderTarget && renderTarget.isWebGLRenderTarget ) === false ) {\n\n\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar framebuffer = properties.get( renderTarget ).__webglFramebuffer;\n\n\t\t\tif ( framebuffer ) {\n\n\t\t\t\tvar restore = false;\n\n\t\t\t\tif ( framebuffer !== _currentFramebuffer ) {\n\n\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, framebuffer );\n\n\t\t\t\t\trestore = true;\n\n\t\t\t\t}\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar texture = renderTarget.texture;\n\t\t\t\t\tvar textureFormat = texture.format;\n\t\t\t\t\tvar textureType = texture.type;\n\n\t\t\t\t\tif ( textureFormat !== RGBAFormat && paramThreeToGL( textureFormat ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_FORMAT ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( textureType !== UnsignedByteType && paramThreeToGL( textureType ) !== _gl.getParameter( _gl.IMPLEMENTATION_COLOR_READ_TYPE ) && // IE11, Edge and Chrome Mac < 52 (#9513)\n\t\t\t\t\t ! ( textureType === FloatType && ( extensions.get( 'OES_texture_float' ) || extensions.get( 'WEBGL_color_buffer_float' ) ) ) && // Chrome Mac >= 52 and Firefox\n\t\t\t\t\t ! ( textureType === HalfFloatType && extensions.get( 'EXT_color_buffer_half_float' ) ) ) {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.' );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( _gl.checkFramebufferStatus( _gl.FRAMEBUFFER ) === _gl.FRAMEBUFFER_COMPLETE ) {\n\n\t\t\t\t\t\t// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)\n\n\t\t\t\t\t\tif ( ( x >= 0 && x <= ( renderTarget.width - width ) ) && ( y >= 0 && y <= ( renderTarget.height - height ) ) ) {\n\n\t\t\t\t\t\t\t_gl.readPixels( x, y, width, height, paramThreeToGL( textureFormat ), paramThreeToGL( textureType ), buffer );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tconsole.error( 'THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.' );\n\n\t\t\t\t\t}\n\n\t\t\t\t} finally {\n\n\t\t\t\t\tif ( restore ) {\n\n\t\t\t\t\t\t_gl.bindFramebuffer( _gl.FRAMEBUFFER, _currentFramebuffer );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\t// Map three.js constants to WebGL constants\n\n\t\tfunction paramThreeToGL( p ) {\n\n\t\t\tvar extension;\n\n\t\t\tif ( p === RepeatWrapping ) return _gl.REPEAT;\n\t\t\tif ( p === ClampToEdgeWrapping ) return _gl.CLAMP_TO_EDGE;\n\t\t\tif ( p === MirroredRepeatWrapping ) return _gl.MIRRORED_REPEAT;\n\n\t\t\tif ( p === NearestFilter ) return _gl.NEAREST;\n\t\t\tif ( p === NearestMipMapNearestFilter ) return _gl.NEAREST_MIPMAP_NEAREST;\n\t\t\tif ( p === NearestMipMapLinearFilter ) return _gl.NEAREST_MIPMAP_LINEAR;\n\n\t\t\tif ( p === LinearFilter ) return _gl.LINEAR;\n\t\t\tif ( p === LinearMipMapNearestFilter ) return _gl.LINEAR_MIPMAP_NEAREST;\n\t\t\tif ( p === LinearMipMapLinearFilter ) return _gl.LINEAR_MIPMAP_LINEAR;\n\n\t\t\tif ( p === UnsignedByteType ) return _gl.UNSIGNED_BYTE;\n\t\t\tif ( p === UnsignedShort4444Type ) return _gl.UNSIGNED_SHORT_4_4_4_4;\n\t\t\tif ( p === UnsignedShort5551Type ) return _gl.UNSIGNED_SHORT_5_5_5_1;\n\t\t\tif ( p === UnsignedShort565Type ) return _gl.UNSIGNED_SHORT_5_6_5;\n\n\t\t\tif ( p === ByteType ) return _gl.BYTE;\n\t\t\tif ( p === ShortType ) return _gl.SHORT;\n\t\t\tif ( p === UnsignedShortType ) return _gl.UNSIGNED_SHORT;\n\t\t\tif ( p === IntType ) return _gl.INT;\n\t\t\tif ( p === UnsignedIntType ) return _gl.UNSIGNED_INT;\n\t\t\tif ( p === FloatType ) return _gl.FLOAT;\n\n\t\t\tif ( p === HalfFloatType ) {\n\n\t\t\t\textension = extensions.get( 'OES_texture_half_float' );\n\n\t\t\t\tif ( extension !== null ) return extension.HALF_FLOAT_OES;\n\n\t\t\t}\n\n\t\t\tif ( p === AlphaFormat ) return _gl.ALPHA;\n\t\t\tif ( p === RGBFormat ) return _gl.RGB;\n\t\t\tif ( p === RGBAFormat ) return _gl.RGBA;\n\t\t\tif ( p === LuminanceFormat ) return _gl.LUMINANCE;\n\t\t\tif ( p === LuminanceAlphaFormat ) return _gl.LUMINANCE_ALPHA;\n\t\t\tif ( p === DepthFormat ) return _gl.DEPTH_COMPONENT;\n\t\t\tif ( p === DepthStencilFormat ) return _gl.DEPTH_STENCIL;\n\n\t\t\tif ( p === AddEquation ) return _gl.FUNC_ADD;\n\t\t\tif ( p === SubtractEquation ) return _gl.FUNC_SUBTRACT;\n\t\t\tif ( p === ReverseSubtractEquation ) return _gl.FUNC_REVERSE_SUBTRACT;\n\n\t\t\tif ( p === ZeroFactor ) return _gl.ZERO;\n\t\t\tif ( p === OneFactor ) return _gl.ONE;\n\t\t\tif ( p === SrcColorFactor ) return _gl.SRC_COLOR;\n\t\t\tif ( p === OneMinusSrcColorFactor ) return _gl.ONE_MINUS_SRC_COLOR;\n\t\t\tif ( p === SrcAlphaFactor ) return _gl.SRC_ALPHA;\n\t\t\tif ( p === OneMinusSrcAlphaFactor ) return _gl.ONE_MINUS_SRC_ALPHA;\n\t\t\tif ( p === DstAlphaFactor ) return _gl.DST_ALPHA;\n\t\t\tif ( p === OneMinusDstAlphaFactor ) return _gl.ONE_MINUS_DST_ALPHA;\n\n\t\t\tif ( p === DstColorFactor ) return _gl.DST_COLOR;\n\t\t\tif ( p === OneMinusDstColorFactor ) return _gl.ONE_MINUS_DST_COLOR;\n\t\t\tif ( p === SrcAlphaSaturateFactor ) return _gl.SRC_ALPHA_SATURATE;\n\n\t\t\tif ( p === RGB_S3TC_DXT1_Format || p === RGBA_S3TC_DXT1_Format ||\n\t\t\t\tp === RGBA_S3TC_DXT3_Format || p === RGBA_S3TC_DXT5_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_S3TC_DXT1_Format ) return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT1_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT3_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;\n\t\t\t\t\tif ( p === RGBA_S3TC_DXT5_Format ) return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format || p === RGB_PVRTC_2BPPV1_Format ||\n\t\t\t\t p === RGBA_PVRTC_4BPPV1_Format || p === RGBA_PVRTC_2BPPV1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === RGB_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGB_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_4BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;\n\t\t\t\t\tif ( p === RGBA_PVRTC_2BPPV1_Format ) return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === RGB_ETC1_Format ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_compressed_texture_etc1' );\n\n\t\t\t\tif ( extension !== null ) return extension.COMPRESSED_RGB_ETC1_WEBGL;\n\n\t\t\t}\n\n\t\t\tif ( p === MinEquation || p === MaxEquation ) {\n\n\t\t\t\textension = extensions.get( 'EXT_blend_minmax' );\n\n\t\t\t\tif ( extension !== null ) {\n\n\t\t\t\t\tif ( p === MinEquation ) return extension.MIN_EXT;\n\t\t\t\t\tif ( p === MaxEquation ) return extension.MAX_EXT;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( p === UnsignedInt248Type ) {\n\n\t\t\t\textension = extensions.get( 'WEBGL_depth_texture' );\n\n\t\t\t\tif ( extension !== null ) return extension.UNSIGNED_INT_24_8_WEBGL;\n\n\t\t\t}\n\n\t\t\treturn 0;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction FogExp2 ( color, density ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\t\tthis.density = ( density !== undefined ) ? density : 0.00025;\n\n\t}\n\n\tFogExp2.prototype.isFogExp2 = true;\n\n\tFogExp2.prototype.clone = function () {\n\n\t\treturn new FogExp2( this.color.getHex(), this.density );\n\n\t};\n\n\tFogExp2.prototype.toJSON = function ( meta ) {\n\n\t\treturn {\n\t\t\ttype: 'FogExp2',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tdensity: this.density\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Fog ( color, near, far ) {\n\n\t\tthis.name = '';\n\n\t\tthis.color = new Color( color );\n\n\t\tthis.near = ( near !== undefined ) ? near : 1;\n\t\tthis.far = ( far !== undefined ) ? far : 1000;\n\n\t}\n\n\tFog.prototype.isFog = true;\n\n\tFog.prototype.clone = function () {\n\n\t\treturn new Fog( this.color.getHex(), this.near, this.far );\n\n\t};\n\n\tFog.prototype.toJSON = function ( meta ) {\n\n\t\treturn {\n\t\t\ttype: 'Fog',\n\t\t\tcolor: this.color.getHex(),\n\t\t\tnear: this.near,\n\t\t\tfar: this.far\n\t\t};\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Scene () {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Scene';\n\n\t\tthis.background = null;\n\t\tthis.fog = null;\n\t\tthis.overrideMaterial = null;\n\n\t\tthis.autoUpdate = true; // checked by the renderer\n\n\t}\n\n\tScene.prototype = Object.create( Object3D.prototype );\n\n\tScene.prototype.constructor = Scene;\n\n\tScene.prototype.copy = function ( source, recursive ) {\n\n\t\tObject3D.prototype.copy.call( this, source, recursive );\n\n\t\tif ( source.background !== null ) this.background = source.background.clone();\n\t\tif ( source.fog !== null ) this.fog = source.fog.clone();\n\t\tif ( source.overrideMaterial !== null ) this.overrideMaterial = source.overrideMaterial.clone();\n\n\t\tthis.autoUpdate = source.autoUpdate;\n\t\tthis.matrixAutoUpdate = source.matrixAutoUpdate;\n\n\t\treturn this;\n\n\t};\n\n\tScene.prototype.toJSON = function ( meta ) {\n\n\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\tif ( this.background !== null ) data.object.background = this.background.toJSON( meta );\n\t\tif ( this.fog !== null ) data.object.fog = this.fog.toJSON();\n\n\t\treturn data;\n\n\t};\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction LensFlare( texture, size, distance, blending, color ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.lensFlares = [];\n\n\t\tthis.positionScreen = new Vector3();\n\t\tthis.customUpdateCallback = undefined;\n\n\t\tif ( texture !== undefined ) {\n\n\t\t\tthis.add( texture, size, distance, blending, color );\n\n\t\t}\n\n\t}\n\n\tLensFlare.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: LensFlare,\n\n\t\tisLensFlare: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.positionScreen.copy( source.positionScreen );\n\t\t\tthis.customUpdateCallback = source.customUpdateCallback;\n\n\t\t\tfor ( var i = 0, l = source.lensFlares.length; i < l; i ++ ) {\n\n\t\t\t\tthis.lensFlares.push( source.lensFlares[ i ] );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tadd: function ( texture, size, distance, blending, color, opacity ) {\n\n\t\t\tif ( size === undefined ) size = - 1;\n\t\t\tif ( distance === undefined ) distance = 0;\n\t\t\tif ( opacity === undefined ) opacity = 1;\n\t\t\tif ( color === undefined ) color = new Color( 0xffffff );\n\t\t\tif ( blending === undefined ) blending = NormalBlending;\n\n\t\t\tdistance = Math.min( distance, Math.max( 0, distance ) );\n\n\t\t\tthis.lensFlares.push( {\n\t\t\t\ttexture: texture,\t// THREE.Texture\n\t\t\t\tsize: size, \t\t// size in pixels (-1 = use texture.width)\n\t\t\t\tdistance: distance, \t// distance (0-1) from light source (0=at light source)\n\t\t\t\tx: 0, y: 0, z: 0,\t// screen position (-1 => 1) z = 0 is in front z = 1 is back\n\t\t\t\tscale: 1, \t\t// scale\n\t\t\t\trotation: 0, \t\t// rotation\n\t\t\t\topacity: opacity,\t// opacity\n\t\t\t\tcolor: color,\t\t// color\n\t\t\t\tblending: blending\t// blending\n\t\t\t} );\n\n\t\t},\n\n\t\t/*\n\t\t * Update lens flares update positions on all flares based on the screen position\n\t\t * Set myLensFlare.customUpdateCallback to alter the flares in your project specific way.\n\t\t */\n\n\t\tupdateLensFlares: function () {\n\n\t\t\tvar f, fl = this.lensFlares.length;\n\t\t\tvar flare;\n\t\t\tvar vecX = - this.positionScreen.x * 2;\n\t\t\tvar vecY = - this.positionScreen.y * 2;\n\n\t\t\tfor ( f = 0; f < fl; f ++ ) {\n\n\t\t\t\tflare = this.lensFlares[ f ];\n\n\t\t\t\tflare.x = this.positionScreen.x + vecX * flare.distance;\n\t\t\t\tflare.y = this.positionScreen.y + vecY * flare.distance;\n\n\t\t\t\tflare.wantedRotation = flare.x * Math.PI * 0.25;\n\t\t\t\tflare.rotation += ( flare.wantedRotation - flare.rotation ) * 0.25;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t *\tuvOffset: new THREE.Vector2(),\n\t *\tuvScale: new THREE.Vector2()\n\t * }\n\t */\n\n\tfunction SpriteMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'SpriteMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\t\tthis.map = null;\n\n\t\tthis.rotation = 0;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tSpriteMaterial.prototype = Object.create( Material.prototype );\n\tSpriteMaterial.prototype.constructor = SpriteMaterial;\n\n\tSpriteMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.map = source.map;\n\n\t\tthis.rotation = source.rotation;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Sprite( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Sprite';\n\n\t\tthis.material = ( material !== undefined ) ? material : new SpriteMaterial();\n\n\t}\n\n\tSprite.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Sprite,\n\n\t\tisSprite: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar matrixPosition = new Vector3();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tmatrixPosition.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\tvar distanceSq = raycaster.ray.distanceSqToPoint( matrixPosition );\n\t\t\t\tvar guessSizeSq = this.scale.x * this.scale.y / 4;\n\n\t\t\t\tif ( distanceSq > guessSizeSq ) {\n\n\t\t\t\t\treturn;\n\n\t\t\t\t}\n\n\t\t\t\tintersects.push( {\n\n\t\t\t\t\tdistance: Math.sqrt( distanceSq ),\n\t\t\t\t\tpoint: this.position,\n\t\t\t\t\tface: null,\n\t\t\t\t\tobject: this\n\n\t\t\t\t} );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LOD() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'LOD';\n\n\t\tObject.defineProperties( this, {\n\t\t\tlevels: {\n\t\t\t\tenumerable: true,\n\t\t\t\tvalue: []\n\t\t\t}\n\t\t} );\n\n\t}\n\n\n\tLOD.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: LOD,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source, false );\n\n\t\t\tvar levels = source.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tthis.addLevel( level.object.clone(), level.distance );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\taddLevel: function ( object, distance ) {\n\n\t\t\tif ( distance === undefined ) distance = 0;\n\n\t\t\tdistance = Math.abs( distance );\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\tif ( distance < levels[ l ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tlevels.splice( l, 0, { distance: distance, object: object } );\n\n\t\t\tthis.add( object );\n\n\t\t},\n\n\t\tgetObjectForDistance: function ( distance ) {\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tif ( distance < levels[ i ].distance ) {\n\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn levels[ i - 1 ].object;\n\n\t\t},\n\n\t\traycast: ( function () {\n\n\t\t\tvar matrixPosition = new Vector3();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tmatrixPosition.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( matrixPosition );\n\n\t\t\t\tthis.getObjectForDistance( distance ).raycast( raycaster, intersects );\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tupdate: function () {\n\n\t\t\tvar v1 = new Vector3();\n\t\t\tvar v2 = new Vector3();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar levels = this.levels;\n\n\t\t\t\tif ( levels.length > 1 ) {\n\n\t\t\t\t\tv1.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\t\tv2.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\t\tvar distance = v1.distanceTo( v2 );\n\n\t\t\t\t\tlevels[ 0 ].object.visible = true;\n\n\t\t\t\t\tfor ( var i = 1, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tif ( distance >= levels[ i ].distance ) {\n\n\t\t\t\t\t\t\tlevels[ i - 1 ].object.visible = false;\n\t\t\t\t\t\t\tlevels[ i ].object.visible = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( ; i < l; i ++ ) {\n\n\t\t\t\t\t\tlevels[ i ].object.visible = false;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}(),\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.levels = [];\n\n\t\t\tvar levels = this.levels;\n\n\t\t\tfor ( var i = 0, l = levels.length; i < l; i ++ ) {\n\n\t\t\t\tvar level = levels[ i ];\n\n\t\t\t\tdata.object.levels.push( {\n\t\t\t\t\tobject: level.object.uuid,\n\t\t\t\t\tdistance: level.distance\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DataTexture( data, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { data: data, width: width, height: height };\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.generateMipmaps = false;\n\t\tthis.flipY = false;\n\t\tthis.unpackAlignment = 1;\n\n\t}\n\n\tDataTexture.prototype = Object.create( Texture.prototype );\n\tDataTexture.prototype.constructor = DataTexture;\n\n\tDataTexture.prototype.isDataTexture = true;\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author michael guerrero / http://realitymeltdown.com\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Skeleton( bones, boneInverses, useVertexTexture ) {\n\n\t\tthis.useVertexTexture = useVertexTexture !== undefined ? useVertexTexture : true;\n\n\t\tthis.identityMatrix = new Matrix4();\n\n\t\t// copy the bone array\n\n\t\tbones = bones || [];\n\n\t\tthis.bones = bones.slice( 0 );\n\n\t\t// create a bone texture or an array of floats\n\n\t\tif ( this.useVertexTexture ) {\n\n\t\t\t// layout (1 matrix = 4 pixels)\n\t\t\t// RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)\n\t\t\t// with 8x8 pixel texture max 16 bones * 4 pixels = (8 * 8)\n\t\t\t// 16x16 pixel texture max 64 bones * 4 pixels = (16 * 16)\n\t\t\t// 32x32 pixel texture max 256 bones * 4 pixels = (32 * 32)\n\t\t\t// 64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)\n\n\n\t\t\tvar size = Math.sqrt( this.bones.length * 4 ); // 4 pixels needed for 1 matrix\n\t\t\tsize = _Math.nextPowerOfTwo( Math.ceil( size ) );\n\t\t\tsize = Math.max( size, 4 );\n\n\t\t\tthis.boneTextureWidth = size;\n\t\t\tthis.boneTextureHeight = size;\n\n\t\t\tthis.boneMatrices = new Float32Array( this.boneTextureWidth * this.boneTextureHeight * 4 ); // 4 floats per RGBA pixel\n\t\t\tthis.boneTexture = new DataTexture( this.boneMatrices, this.boneTextureWidth, this.boneTextureHeight, RGBAFormat, FloatType );\n\n\t\t} else {\n\n\t\t\tthis.boneMatrices = new Float32Array( 16 * this.bones.length );\n\n\t\t}\n\n\t\t// use the supplied bone inverses or calculate the inverses\n\n\t\tif ( boneInverses === undefined ) {\n\n\t\t\tthis.calculateInverses();\n\n\t\t} else {\n\n\t\t\tif ( this.bones.length === boneInverses.length ) {\n\n\t\t\t\tthis.boneInverses = boneInverses.slice( 0 );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.Skeleton bonInverses is the wrong length.' );\n\n\t\t\t\tthis.boneInverses = [];\n\n\t\t\t\tfor ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {\n\n\t\t\t\t\tthis.boneInverses.push( new Matrix4() );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tObject.assign( Skeleton.prototype, {\n\n\t\tcalculateInverses: function () {\n\n\t\t\tthis.boneInverses = [];\n\n\t\t\tfor ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {\n\n\t\t\t\tvar inverse = new Matrix4();\n\n\t\t\t\tif ( this.bones[ b ] ) {\n\n\t\t\t\t\tinverse.getInverse( this.bones[ b ].matrixWorld );\n\n\t\t\t\t}\n\n\t\t\t\tthis.boneInverses.push( inverse );\n\n\t\t\t}\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tvar bone;\n\n\t\t\t// recover the bind-time world matrices\n\n\t\t\tfor ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {\n\n\t\t\t\tbone = this.bones[ b ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tbone.matrixWorld.getInverse( this.boneInverses[ b ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// compute the local matrices, positions, rotations and scales\n\n\t\t\tfor ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {\n\n\t\t\t\tbone = this.bones[ b ];\n\n\t\t\t\tif ( bone ) {\n\n\t\t\t\t\tif ( (bone.parent && bone.parent.isBone) ) {\n\n\t\t\t\t\t\tbone.matrix.getInverse( bone.parent.matrixWorld );\n\t\t\t\t\t\tbone.matrix.multiply( bone.matrixWorld );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tbone.matrix.copy( bone.matrixWorld );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tbone.matrix.decompose( bone.position, bone.quaternion, bone.scale );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdate: ( function () {\n\n\t\t\tvar offsetMatrix = new Matrix4();\n\n\t\t\treturn function update() {\n\n\t\t\t\t// flatten bone matrices to array\n\n\t\t\t\tfor ( var b = 0, bl = this.bones.length; b < bl; b ++ ) {\n\n\t\t\t\t\t// compute the offset between the current and the original transform\n\n\t\t\t\t\tvar matrix = this.bones[ b ] ? this.bones[ b ].matrixWorld : this.identityMatrix;\n\n\t\t\t\t\toffsetMatrix.multiplyMatrices( matrix, this.boneInverses[ b ] );\n\t\t\t\t\toffsetMatrix.toArray( this.boneMatrices, b * 16 );\n\n\t\t\t\t}\n\n\t\t\t\tif ( this.useVertexTexture ) {\n\n\t\t\t\t\tthis.boneTexture.needsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\tclone: function () {\n\n\t\t\treturn new Skeleton( this.bones, this.boneInverses, this.useVertexTexture );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction Bone( skin ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Bone';\n\n\t\tthis.skin = skin;\n\n\t}\n\n\tBone.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Bone,\n\n\t\tisBone: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.skin = source.skin;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mikael emtinger / http://gomo.se/\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction SkinnedMesh( geometry, material, useVertexTexture ) {\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.type = 'SkinnedMesh';\n\n\t\tthis.bindMode = \"attached\";\n\t\tthis.bindMatrix = new Matrix4();\n\t\tthis.bindMatrixInverse = new Matrix4();\n\n\t\t// init bones\n\n\t\t// TODO: remove bone creation as there is no reason (other than\n\t\t// convenience) for THREE.SkinnedMesh to do this.\n\n\t\tvar bones = [];\n\n\t\tif ( this.geometry && this.geometry.bones !== undefined ) {\n\n\t\t\tvar bone, gbone;\n\n\t\t\tfor ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) {\n\n\t\t\t\tgbone = this.geometry.bones[ b ];\n\n\t\t\t\tbone = new Bone( this );\n\t\t\t\tbones.push( bone );\n\n\t\t\t\tbone.name = gbone.name;\n\t\t\t\tbone.position.fromArray( gbone.pos );\n\t\t\t\tbone.quaternion.fromArray( gbone.rotq );\n\t\t\t\tif ( gbone.scl !== undefined ) bone.scale.fromArray( gbone.scl );\n\n\t\t\t}\n\n\t\t\tfor ( var b = 0, bl = this.geometry.bones.length; b < bl; ++ b ) {\n\n\t\t\t\tgbone = this.geometry.bones[ b ];\n\n\t\t\t\tif ( gbone.parent !== - 1 && gbone.parent !== null &&\n\t\t\t\t\t\tbones[ gbone.parent ] !== undefined ) {\n\n\t\t\t\t\tbones[ gbone.parent ].add( bones[ b ] );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tthis.add( bones[ b ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.normalizeSkinWeights();\n\n\t\tthis.updateMatrixWorld( true );\n\t\tthis.bind( new Skeleton( bones, undefined, useVertexTexture ), this.matrixWorld );\n\n\t}\n\n\n\tSkinnedMesh.prototype = Object.assign( Object.create( Mesh.prototype ), {\n\n\t\tconstructor: SkinnedMesh,\n\n\t\tisSkinnedMesh: true,\n\n\t\tbind: function( skeleton, bindMatrix ) {\n\n\t\t\tthis.skeleton = skeleton;\n\n\t\t\tif ( bindMatrix === undefined ) {\n\n\t\t\t\tthis.updateMatrixWorld( true );\n\n\t\t\t\tthis.skeleton.calculateInverses();\n\n\t\t\t\tbindMatrix = this.matrixWorld;\n\n\t\t\t}\n\n\t\t\tthis.bindMatrix.copy( bindMatrix );\n\t\t\tthis.bindMatrixInverse.getInverse( bindMatrix );\n\n\t\t},\n\n\t\tpose: function () {\n\n\t\t\tthis.skeleton.pose();\n\n\t\t},\n\n\t\tnormalizeSkinWeights: function () {\n\n\t\t\tif ( (this.geometry && this.geometry.isGeometry) ) {\n\n\t\t\t\tfor ( var i = 0; i < this.geometry.skinWeights.length; i ++ ) {\n\n\t\t\t\t\tvar sw = this.geometry.skinWeights[ i ];\n\n\t\t\t\t\tvar scale = 1.0 / sw.lengthManhattan();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tsw.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tsw.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( (this.geometry && this.geometry.isBufferGeometry) ) {\n\n\t\t\t\tvar vec = new Vector4();\n\n\t\t\t\tvar skinWeight = this.geometry.attributes.skinWeight;\n\n\t\t\t\tfor ( var i = 0; i < skinWeight.count; i ++ ) {\n\n\t\t\t\t\tvec.x = skinWeight.getX( i );\n\t\t\t\t\tvec.y = skinWeight.getY( i );\n\t\t\t\t\tvec.z = skinWeight.getZ( i );\n\t\t\t\t\tvec.w = skinWeight.getW( i );\n\n\t\t\t\t\tvar scale = 1.0 / vec.lengthManhattan();\n\n\t\t\t\t\tif ( scale !== Infinity ) {\n\n\t\t\t\t\t\tvec.multiplyScalar( scale );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tvec.set( 1, 0, 0, 0 ); // do something reasonable\n\n\t\t\t\t\t}\n\n\t\t\t\t\tskinWeight.setXYZW( i, vec.x, vec.y, vec.z, vec.w );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\tupdateMatrixWorld: function( force ) {\n\n\t\t\tMesh.prototype.updateMatrixWorld.call( this, true );\n\n\t\t\tif ( this.bindMode === \"attached\" ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.matrixWorld );\n\n\t\t\t} else if ( this.bindMode === \"detached\" ) {\n\n\t\t\t\tthis.bindMatrixInverse.getInverse( this.bindMatrix );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'THREE.SkinnedMesh unrecognized bindMode: ' + this.bindMode );\n\n\t\t\t}\n\n\t\t},\n\n\t\tclone: function() {\n\n\t\t\treturn new this.constructor( this.geometry, this.material, this.skeleton.useVertexTexture ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t * linecap: \"round\",\n\t * linejoin: \"round\"\n\t * }\n\t */\n\n\tfunction LineBasicMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'LineBasicMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.linewidth = 1;\n\t\tthis.linecap = 'round';\n\t\tthis.linejoin = 'round';\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineBasicMaterial.prototype = Object.create( Material.prototype );\n\tLineBasicMaterial.prototype.constructor = LineBasicMaterial;\n\n\tLineBasicMaterial.prototype.isLineBasicMaterial = true;\n\n\tLineBasicMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.linewidth = source.linewidth;\n\t\tthis.linecap = source.linecap;\n\t\tthis.linejoin = source.linejoin;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Line( geometry, material, mode ) {\n\n\t\tif ( mode === 1 ) {\n\n\t\t\tconsole.warn( 'THREE.Line: parameter THREE.LinePieces no longer supported. Created THREE.LineSegments instead.' );\n\t\t\treturn new LineSegments( geometry, material );\n\n\t\t}\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Line';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new LineBasicMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tLine.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Line,\n\n\t\tisLine: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar precision = raycaster.linePrecision;\n\t\t\t\tvar precisionSq = precision * precision;\n\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar vStart = new Vector3();\n\t\t\t\tvar vEnd = new Vector3();\n\t\t\t\tvar interSegment = new Vector3();\n\t\t\t\tvar interRay = new Vector3();\n\t\t\t\tvar step = (this && this.isLineSegments) ? 2 : 1;\n\n\t\t\t\tif ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, l = indices.length - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\t\t\t\t\t\t\tvar b = indices[ i + 1 ];\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, a * 3 );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, b * 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3 - 1; i < l; i += step ) {\n\n\t\t\t\t\t\t\tvStart.fromArray( positions, 3 * i );\n\t\t\t\t\t\t\tvEnd.fromArray( positions, 3 * i + 3 );\n\n\t\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vStart, vEnd, interRay, interSegment );\n\n\t\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t\t} );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( (geometry && geometry.isGeometry) ) {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\t\t\t\t\tvar nbVertices = vertices.length;\n\n\t\t\t\t\tfor ( var i = 0; i < nbVertices - 1; i += step ) {\n\n\t\t\t\t\t\tvar distSq = ray.distanceSqToSegment( vertices[ i ], vertices[ i + 1 ], interRay, interSegment );\n\n\t\t\t\t\t\tif ( distSq > precisionSq ) continue;\n\n\t\t\t\t\t\tinterRay.applyMatrix4( this.matrixWorld ); //Move back to world space for distance calculation\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( interRay );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) continue;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\t// What do we want? intersection point on the ray or on the segment??\n\t\t\t\t\t\t\t// point: raycaster.ray.at( distance ),\n\t\t\t\t\t\t\tpoint: interSegment.clone().applyMatrix4( this.matrixWorld ),\n\t\t\t\t\t\t\tindex: i,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tfaceIndex: null,\n\t\t\t\t\t\t\tobject: this\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LineSegments( geometry, material ) {\n\n\t\tLine.call( this, geometry, material );\n\n\t\tthis.type = 'LineSegments';\n\n\t}\n\n\tLineSegments.prototype = Object.assign( Object.create( Line.prototype ), {\n\n\t\tconstructor: LineSegments,\n\n\t\tisLineSegments: true\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t * map: new THREE.Texture( ),\n\t *\n\t * size: ,\n\t * sizeAttenuation: \n\t * }\n\t */\n\n\tfunction PointsMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'PointsMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.map = null;\n\n\t\tthis.size = 1;\n\t\tthis.sizeAttenuation = true;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tPointsMaterial.prototype = Object.create( Material.prototype );\n\tPointsMaterial.prototype.constructor = PointsMaterial;\n\n\tPointsMaterial.prototype.isPointsMaterial = true;\n\n\tPointsMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.size = source.size;\n\t\tthis.sizeAttenuation = source.sizeAttenuation;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Points( geometry, material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Points';\n\n\t\tthis.geometry = geometry !== undefined ? geometry : new BufferGeometry();\n\t\tthis.material = material !== undefined ? material : new PointsMaterial( { color: Math.random() * 0xffffff } );\n\n\t}\n\n\tPoints.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Points,\n\n\t\tisPoints: true,\n\n\t\traycast: ( function () {\n\n\t\t\tvar inverseMatrix = new Matrix4();\n\t\t\tvar ray = new Ray();\n\t\t\tvar sphere = new Sphere();\n\n\t\t\treturn function raycast( raycaster, intersects ) {\n\n\t\t\t\tvar object = this;\n\t\t\t\tvar geometry = this.geometry;\n\t\t\t\tvar matrixWorld = this.matrixWorld;\n\t\t\t\tvar threshold = raycaster.params.Points.threshold;\n\n\t\t\t\t// Checking boundingSphere distance to ray\n\n\t\t\t\tif ( geometry.boundingSphere === null ) geometry.computeBoundingSphere();\n\n\t\t\t\tsphere.copy( geometry.boundingSphere );\n\t\t\t\tsphere.applyMatrix4( matrixWorld );\n\n\t\t\t\tif ( raycaster.ray.intersectsSphere( sphere ) === false ) return;\n\n\t\t\t\t//\n\n\t\t\t\tinverseMatrix.getInverse( matrixWorld );\n\t\t\t\tray.copy( raycaster.ray ).applyMatrix4( inverseMatrix );\n\n\t\t\t\tvar localThreshold = threshold / ( ( this.scale.x + this.scale.y + this.scale.z ) / 3 );\n\t\t\t\tvar localThresholdSq = localThreshold * localThreshold;\n\t\t\t\tvar position = new Vector3();\n\n\t\t\t\tfunction testPoint( point, index ) {\n\n\t\t\t\t\tvar rayPointDistanceSq = ray.distanceSqToPoint( point );\n\n\t\t\t\t\tif ( rayPointDistanceSq < localThresholdSq ) {\n\n\t\t\t\t\t\tvar intersectPoint = ray.closestPointToPoint( point );\n\t\t\t\t\t\tintersectPoint.applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tvar distance = raycaster.ray.origin.distanceTo( intersectPoint );\n\n\t\t\t\t\t\tif ( distance < raycaster.near || distance > raycaster.far ) return;\n\n\t\t\t\t\t\tintersects.push( {\n\n\t\t\t\t\t\t\tdistance: distance,\n\t\t\t\t\t\t\tdistanceToRay: Math.sqrt( rayPointDistanceSq ),\n\t\t\t\t\t\t\tpoint: intersectPoint.clone(),\n\t\t\t\t\t\t\tindex: index,\n\t\t\t\t\t\t\tface: null,\n\t\t\t\t\t\t\tobject: object\n\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\t\t\tvar index = geometry.index;\n\t\t\t\t\tvar attributes = geometry.attributes;\n\t\t\t\t\tvar positions = attributes.position.array;\n\n\t\t\t\t\tif ( index !== null ) {\n\n\t\t\t\t\t\tvar indices = index.array;\n\n\t\t\t\t\t\tfor ( var i = 0, il = indices.length; i < il; i ++ ) {\n\n\t\t\t\t\t\t\tvar a = indices[ i ];\n\n\t\t\t\t\t\t\tposition.fromArray( positions, a * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, a );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tfor ( var i = 0, l = positions.length / 3; i < l; i ++ ) {\n\n\t\t\t\t\t\t\tposition.fromArray( positions, i * 3 );\n\n\t\t\t\t\t\t\ttestPoint( position, i );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tvar vertices = geometry.vertices;\n\n\t\t\t\t\tfor ( var i = 0, l = vertices.length; i < l; i ++ ) {\n\n\t\t\t\t\t\ttestPoint( vertices[ i ], i );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}() ),\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor( this.geometry, this.material ).copy( this );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Group() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Group';\n\n\t}\n\n\tGroup.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Group\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction VideoTexture( video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, video, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.generateMipmaps = false;\n\n\t\tvar scope = this;\n\n\t\tfunction update() {\n\n\t\t\trequestAnimationFrame( update );\n\n\t\t\tif ( video.readyState >= video.HAVE_CURRENT_DATA ) {\n\n\t\t\t\tscope.needsUpdate = true;\n\n\t\t\t}\n\n\t\t}\n\n\t\tupdate();\n\n\t}\n\n\tVideoTexture.prototype = Object.create( Texture.prototype );\n\tVideoTexture.prototype.constructor = VideoTexture;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CompressedTexture( mipmaps, width, height, format, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, encoding ) {\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy, encoding );\n\n\t\tthis.image = { width: width, height: height };\n\t\tthis.mipmaps = mipmaps;\n\n\t\t// no flipping for cube textures\n\t\t// (also flipping doesn't work for compressed textures )\n\n\t\tthis.flipY = false;\n\n\t\t// can't generate mipmaps for compressed textures\n\t\t// mips must be embedded in DDS files\n\n\t\tthis.generateMipmaps = false;\n\n\t}\n\n\tCompressedTexture.prototype = Object.create( Texture.prototype );\n\tCompressedTexture.prototype.constructor = CompressedTexture;\n\n\tCompressedTexture.prototype.isCompressedTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CanvasTexture( canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy ) {\n\n\t\tTexture.call( this, canvas, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.needsUpdate = true;\n\n\t}\n\n\tCanvasTexture.prototype = Object.create( Texture.prototype );\n\tCanvasTexture.prototype.constructor = CanvasTexture;\n\n\t/**\n\t * @author Matt DesLauriers / @mattdesl\n\t * @author atix / arthursilber.de\n\t */\n\n\tfunction DepthTexture( width, height, type, mapping, wrapS, wrapT, magFilter, minFilter, anisotropy, format ) {\n\n\t\tformat = format !== undefined ? format : DepthFormat;\n\n\t\tif ( format !== DepthFormat && format !== DepthStencilFormat ) {\n\n\t\t\tthrow new Error( 'DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat' )\n\n\t\t}\n\n\t\tTexture.call( this, null, mapping, wrapS, wrapT, magFilter, minFilter, format, type, anisotropy );\n\n\t\tthis.image = { width: width, height: height };\n\n\t\tthis.type = type !== undefined ? type : UnsignedShortType;\n\n\t\tthis.magFilter = magFilter !== undefined ? magFilter : NearestFilter;\n\t\tthis.minFilter = minFilter !== undefined ? minFilter : NearestFilter;\n\n\t\tthis.flipY = false;\n\t\tthis.generateMipmaps\t= false;\n\n\t}\n\n\tDepthTexture.prototype = Object.create( Texture.prototype );\n\tDepthTexture.prototype.constructor = DepthTexture;\n\tDepthTexture.prototype.isDepthTexture = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction WireframeGeometry( geometry ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tvar edge = [ 0, 0 ], hash = {};\n\n\t\tfunction sortFunction( a, b ) {\n\n\t\t\treturn a - b;\n\n\t\t}\n\n\t\tvar keys = [ 'a', 'b', 'c' ];\n\n\t\tif ( (geometry && geometry.isGeometry) ) {\n\n\t\t\tvar vertices = geometry.vertices;\n\t\t\tvar faces = geometry.faces;\n\t\t\tvar numEdges = 0;\n\n\t\t\t// allocate maximal size\n\t\t\tvar edges = new Uint32Array( 6 * faces.length );\n\n\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\tedge[ 0 ] = face[ keys[ j ] ];\n\t\t\t\t\tedge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\t\tedge.sort( sortFunction );\n\n\t\t\t\t\tvar key = edge.toString();\n\n\t\t\t\t\tif ( hash[ key ] === undefined ) {\n\n\t\t\t\t\t\tedges[ 2 * numEdges ] = edge[ 0 ];\n\t\t\t\t\t\tedges[ 2 * numEdges + 1 ] = edge[ 1 ];\n\t\t\t\t\t\thash[ key ] = true;\n\t\t\t\t\t\tnumEdges ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar coords = new Float32Array( numEdges * 2 * 3 );\n\n\t\t\tfor ( var i = 0, l = numEdges; i < l; i ++ ) {\n\n\t\t\t\tfor ( var j = 0; j < 2; j ++ ) {\n\n\t\t\t\t\tvar vertex = vertices[ edges [ 2 * i + j ] ];\n\n\t\t\t\t\tvar index = 6 * i + 3 * j;\n\t\t\t\t\tcoords[ index + 0 ] = vertex.x;\n\t\t\t\t\tcoords[ index + 1 ] = vertex.y;\n\t\t\t\t\tcoords[ index + 2 ] = vertex.z;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.addAttribute( 'position', new BufferAttribute( coords, 3 ) );\n\n\t\t} else if ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\tif ( geometry.index !== null ) {\n\n\t\t\t\t// Indexed BufferGeometry\n\n\t\t\t\tvar indices = geometry.index.array;\n\t\t\t\tvar vertices = geometry.attributes.position;\n\t\t\t\tvar groups = geometry.groups;\n\t\t\t\tvar numEdges = 0;\n\n\t\t\t\tif ( groups.length === 0 ) {\n\n\t\t\t\t\tgeometry.addGroup( 0, indices.length );\n\n\t\t\t\t}\n\n\t\t\t\t// allocate maximal size\n\t\t\t\tvar edges = new Uint32Array( 2 * indices.length );\n\n\t\t\t\tfor ( var o = 0, ol = groups.length; o < ol; ++ o ) {\n\n\t\t\t\t\tvar group = groups[ o ];\n\n\t\t\t\t\tvar start = group.start;\n\t\t\t\t\tvar count = group.count;\n\n\t\t\t\t\tfor ( var i = start, il = start + count; i < il; i += 3 ) {\n\n\t\t\t\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\tedge[ 0 ] = indices[ i + j ];\n\t\t\t\t\t\t\tedge[ 1 ] = indices[ i + ( j + 1 ) % 3 ];\n\t\t\t\t\t\t\tedge.sort( sortFunction );\n\n\t\t\t\t\t\t\tvar key = edge.toString();\n\n\t\t\t\t\t\t\tif ( hash[ key ] === undefined ) {\n\n\t\t\t\t\t\t\t\tedges[ 2 * numEdges ] = edge[ 0 ];\n\t\t\t\t\t\t\t\tedges[ 2 * numEdges + 1 ] = edge[ 1 ];\n\t\t\t\t\t\t\t\thash[ key ] = true;\n\t\t\t\t\t\t\t\tnumEdges ++;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar coords = new Float32Array( numEdges * 2 * 3 );\n\n\t\t\t\tfor ( var i = 0, l = numEdges; i < l; i ++ ) {\n\n\t\t\t\t\tfor ( var j = 0; j < 2; j ++ ) {\n\n\t\t\t\t\t\tvar index = 6 * i + 3 * j;\n\t\t\t\t\t\tvar index2 = edges[ 2 * i + j ];\n\n\t\t\t\t\t\tcoords[ index + 0 ] = vertices.getX( index2 );\n\t\t\t\t\t\tcoords[ index + 1 ] = vertices.getY( index2 );\n\t\t\t\t\t\tcoords[ index + 2 ] = vertices.getZ( index2 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.addAttribute( 'position', new BufferAttribute( coords, 3 ) );\n\n\t\t\t} else {\n\n\t\t\t\t// non-indexed BufferGeometry\n\n\t\t\t\tvar vertices = geometry.attributes.position.array;\n\t\t\t\tvar numEdges = vertices.length / 3;\n\t\t\t\tvar numTris = numEdges / 3;\n\n\t\t\t\tvar coords = new Float32Array( numEdges * 2 * 3 );\n\n\t\t\t\tfor ( var i = 0, l = numTris; i < l; i ++ ) {\n\n\t\t\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\tvar index = 18 * i + 6 * j;\n\n\t\t\t\t\t\tvar index1 = 9 * i + 3 * j;\n\t\t\t\t\t\tcoords[ index + 0 ] = vertices[ index1 ];\n\t\t\t\t\t\tcoords[ index + 1 ] = vertices[ index1 + 1 ];\n\t\t\t\t\t\tcoords[ index + 2 ] = vertices[ index1 + 2 ];\n\n\t\t\t\t\t\tvar index2 = 9 * i + 3 * ( ( j + 1 ) % 3 );\n\t\t\t\t\t\tcoords[ index + 3 ] = vertices[ index2 ];\n\t\t\t\t\t\tcoords[ index + 4 ] = vertices[ index2 + 1 ];\n\t\t\t\t\t\tcoords[ index + 5 ] = vertices[ index2 + 2 ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis.addAttribute( 'position', new BufferAttribute( coords, 3 ) );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tWireframeGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tWireframeGeometry.prototype.constructor = WireframeGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Parametric Surfaces Geometry\n\t * based on the brilliant article by @prideout http://prideout.net/blog/?p=44\n\t */\n\n\tfunction ParametricBufferGeometry( func, slices, stacks ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'ParametricBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\t// generate vertices and uvs\n\n\t\tvar vertices = [];\n\t\tvar uvs = [];\n\n\t\tvar i, j, p;\n\t\tvar u, v;\n\n\t\tvar sliceCount = slices + 1;\n\n\t\tfor ( i = 0; i <= stacks; i ++ ) {\n\n\t\t\tv = i / stacks;\n\n\t\t\tfor ( j = 0; j <= slices; j ++ ) {\n\n\t\t\t\tu = j / slices;\n\n\t\t\t\tp = func( u, v );\n\t\t\t\tvertices.push( p.x, p.y, p.z );\n\n\t\t\t\tuvs.push( u, v );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tvar indices = [];\n\t\tvar a, b, c, d;\n\n\t\tfor ( i = 0; i < stacks; i ++ ) {\n\n\t\t\tfor ( j = 0; j < slices; j ++ ) {\n\n\t\t\t\ta = i * sliceCount + j;\n\t\t\t\tb = i * sliceCount + j + 1;\n\t\t\t\tc = ( i + 1 ) * sliceCount + j + 1;\n\t\t\t\td = ( i + 1 ) * sliceCount + j;\n\n\t\t\t\t// faces one and two\n\n\t\t\t\tindices.push( a, b, d );\n\t\t\t\tindices.push( b, c, d );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( ( indices.length > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) );\n\t\tthis.addAttribute( 'position', Float32Attribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'uv', Float32Attribute( uvs, 2 ) );\n\n\t\t// generate normals\n\n\t\tthis.computeVertexNormals();\n\n\t}\n\n\tParametricBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tParametricBufferGeometry.prototype.constructor = ParametricBufferGeometry;\n\n\t/**\n\t * @author zz85 / https://github.com/zz85\n\t *\n\t * Parametric Surfaces Geometry\n\t * based on the brilliant article by @prideout http://prideout.net/blog/?p=44\n\t */\n\n\tfunction ParametricGeometry( func, slices, stacks ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ParametricGeometry';\n\n\t\tthis.parameters = {\n\t\t\tfunc: func,\n\t\t\tslices: slices,\n\t\t\tstacks: stacks\n\t\t};\n\n\t\tthis.fromBufferGeometry( new ParametricBufferGeometry( func, slices, stacks ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tParametricGeometry.prototype = Object.create( Geometry.prototype );\n\tParametricGeometry.prototype.constructor = ParametricGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction PolyhedronBufferGeometry( vertices, indices, radius, detail ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tradius = radius || 1;\n\t\tdetail = detail || 0;\n\n\t\t// default buffer data\n\n\t\tvar vertexBuffer = [];\n\t\tvar uvBuffer = [];\n\n\t\t// the subdivision creates the vertex buffer data\n\n\t\tsubdivide( detail );\n\n\t\t// all vertices should lie on a conceptual sphere with a given radius\n\n\t\tappplyRadius( radius );\n\n\t\t// finally, create the uv data\n\n\t\tgenerateUVs();\n\n\t\t// build non-indexed geometry\n\n\t\tthis.addAttribute( 'position', Float32Attribute( vertexBuffer, 3 ) );\n\t\tthis.addAttribute( 'normal', Float32Attribute( vertexBuffer.slice(), 3 ) );\n\t\tthis.addAttribute( 'uv', Float32Attribute( uvBuffer, 2 ) );\n\t\tthis.normalizeNormals();\n\n\t\tthis.boundingSphere = new Sphere( new Vector3(), radius );\n\n\t\t// helper functions\n\n\t\tfunction subdivide( detail ) {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\t// iterate over all faces and apply a subdivison with the given detail value\n\n\t\t\tfor ( var i = 0; i < indices.length; i += 3 ) {\n\n\t\t\t\t// get the vertices of the face\n\n\t\t\t\tgetVertexByIndex( indices[ i + 0 ], a );\n\t\t\t\tgetVertexByIndex( indices[ i + 1 ], b );\n\t\t\t\tgetVertexByIndex( indices[ i + 2 ], c );\n\n\t\t\t\t// perform subdivision\n\n\t\t\t\tsubdivideFace( a, b, c, detail );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction subdivideFace( a, b, c, detail ) {\n\n\t\t\tvar cols = Math.pow( 2, detail );\n\n\t\t\t// we use this multidimensional array as a data structure for creating the subdivision\n\n\t\t\tvar v = [];\n\n\t\t\tvar i, j;\n\n\t\t\t// construct all of the vertices for this subdivision\n\n\t\t\tfor ( i = 0 ; i <= cols; i ++ ) {\n\n\t\t\t\tv[ i ] = [];\n\n\t\t\t\tvar aj = a.clone().lerp( c, i / cols );\n\t\t\t\tvar bj = b.clone().lerp( c, i / cols );\n\n\t\t\t\tvar rows = cols - i;\n\n\t\t\t\tfor ( j = 0; j <= rows; j ++ ) {\n\n\t\t\t\t\tif ( j === 0 && i === cols ) {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj;\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv[ i ][ j ] = aj.clone().lerp( bj, j / rows );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// construct all of the faces\n\n\t\t\tfor ( i = 0; i < cols ; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j < 2 * ( cols - i ) - 1; j ++ ) {\n\n\t\t\t\t\tvar k = Math.floor( j / 2 );\n\n\t\t\t\t\tif ( j % 2 === 0 ) {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\t\t\t\t\t\tpushVertex( v[ i ][ k ] );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tpushVertex( v[ i ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k + 1 ] );\n\t\t\t\t\t\tpushVertex( v[ i + 1 ][ k ] );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction appplyRadius( radius ) {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\t// iterate over the entire buffer and apply the radius to each vertex\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvertex.normalize().multiplyScalar( radius );\n\n\t\t\t\tvertexBuffer[ i + 0 ] = vertex.x;\n\t\t\t\tvertexBuffer[ i + 1 ] = vertex.y;\n\t\t\t\tvertexBuffer[ i + 2 ] = vertex.z;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tfor ( var i = 0; i < vertexBuffer.length; i += 3 ) {\n\n\t\t\t\tvertex.x = vertexBuffer[ i + 0 ];\n\t\t\t\tvertex.y = vertexBuffer[ i + 1 ];\n\t\t\t\tvertex.z = vertexBuffer[ i + 2 ];\n\n\t\t\t\tvar u = azimuth( vertex ) / 2 / Math.PI + 0.5;\n\t\t\t\tvar v = inclination( vertex ) / Math.PI + 0.5;\n\t\t\t\tuvBuffer.push( u, 1 - v );\n\n\t\t\t}\n\n\t\t\tcorrectUVs();\n\n\t\t\tcorrectSeam();\n\n\t\t}\n\n\t\tfunction correctSeam() {\n\n\t\t\t// handle case when face straddles the seam, see #3269\n\n\t\t\tfor ( var i = 0; i < uvBuffer.length; i += 6 ) {\n\n\t\t\t\t// uv data of a single face\n\n\t\t\t\tvar x0 = uvBuffer[ i + 0 ];\n\t\t\t\tvar x1 = uvBuffer[ i + 2 ];\n\t\t\t\tvar x2 = uvBuffer[ i + 4 ];\n\n\t\t\t\tvar max = Math.max( x0, x1, x2 );\n\t\t\t\tvar min = Math.min( x0, x1, x2 );\n\n\t\t\t\t// 0.9 is somewhat arbitrary\n\n\t\t\t\tif ( max > 0.9 && min < 0.1 ) {\n\n\t\t\t\t\tif ( x0 < 0.2 ) uvBuffer[ i + 0 ] += 1;\n\t\t\t\t\tif ( x1 < 0.2 ) uvBuffer[ i + 2 ] += 1;\n\t\t\t\t\tif ( x2 < 0.2 ) uvBuffer[ i + 4 ] += 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction pushVertex( vertex ) {\n\n\t\t\tvertexBuffer.push( vertex.x, vertex.y, vertex.z );\n\n\t\t}\n\n\t\tfunction getVertexByIndex( index, vertex ) {\n\n\t\t\tvar stride = index * 3;\n\n\t\t\tvertex.x = vertices[ stride + 0 ];\n\t\t\tvertex.y = vertices[ stride + 1 ];\n\t\t\tvertex.z = vertices[ stride + 2 ];\n\n\t\t}\n\n\t\tfunction correctUVs() {\n\n\t\t\tvar a = new Vector3();\n\t\t\tvar b = new Vector3();\n\t\t\tvar c = new Vector3();\n\n\t\t\tvar centroid = new Vector3();\n\n\t\t\tvar uvA = new Vector2();\n\t\t\tvar uvB = new Vector2();\n\t\t\tvar uvC = new Vector2();\n\n\t\t\tfor ( var i = 0, j = 0; i < vertexBuffer.length; i += 9, j += 6 ) {\n\n\t\t\t\ta.set( vertexBuffer[ i + 0 ], vertexBuffer[ i + 1 ], vertexBuffer[ i + 2 ] );\n\t\t\t\tb.set( vertexBuffer[ i + 3 ], vertexBuffer[ i + 4 ], vertexBuffer[ i + 5 ] );\n\t\t\t\tc.set( vertexBuffer[ i + 6 ], vertexBuffer[ i + 7 ], vertexBuffer[ i + 8 ] );\n\n\t\t\t\tuvA.set( uvBuffer[ j + 0 ], uvBuffer[ j + 1 ] );\n\t\t\t\tuvB.set( uvBuffer[ j + 2 ], uvBuffer[ j + 3 ] );\n\t\t\t\tuvC.set( uvBuffer[ j + 4 ], uvBuffer[ j + 5 ] );\n\n\t\t\t\tcentroid.copy( a ).add( b ).add( c ).divideScalar( 3 );\n\n\t\t\t\tvar azi = azimuth( centroid );\n\n\t\t\t\tcorrectUV( uvA, j + 0, a, azi );\n\t\t\t\tcorrectUV( uvB, j + 2, b, azi );\n\t\t\t\tcorrectUV( uvC, j + 4, c, azi );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction correctUV( uv, stride, vector, azimuth ) {\n\n\t\t\tif ( ( azimuth < 0 ) && ( uv.x === 1 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = uv.x - 1;\n\n\t\t\t}\n\n\t\t\tif ( ( vector.x === 0 ) && ( vector.z === 0 ) ) {\n\n\t\t\t\tuvBuffer[ stride ] = azimuth / 2 / Math.PI + 0.5;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Angle around the Y axis, counter-clockwise when looking from above.\n\n\t\tfunction azimuth( vector ) {\n\n\t\t\treturn Math.atan2( vector.z, - vector.x );\n\n\t\t}\n\n\n\t\t// Angle above the XZ plane.\n\n\t\tfunction inclination( vector ) {\n\n\t\t\treturn Math.atan2( - vector.y, Math.sqrt( ( vector.x * vector.x ) + ( vector.z * vector.z ) ) );\n\n\t\t}\n\n\t}\n\n\tPolyhedronBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tPolyhedronBufferGeometry.prototype.constructor = PolyhedronBufferGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction TetrahedronBufferGeometry( radius, detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 1, 1, - 1, - 1, 1, - 1, 1, - 1, 1, - 1, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t2, 1, 0, 0, 3, 2, 1, 3, 0, 2, 3, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'TetrahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tTetrahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tTetrahedronBufferGeometry.prototype.constructor = TetrahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t */\n\n\tfunction TetrahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TetrahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TetrahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTetrahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tTetrahedronGeometry.prototype.constructor = TetrahedronGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction OctahedronBufferGeometry( radius,detail ) {\n\n\t\tvar vertices = [\n\t\t\t1, 0, 0, - 1, 0, 0, 0, 1, 0, 0, - 1, 0, 0, 0, 1, 0, 0, - 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t0, 2, 4, 0, 4, 3, 0, 3, 5, 0, 5, 2, 1, 2, 5, 1, 5, 3, 1, 3, 4, 1, 4, 2\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'OctahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tOctahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tOctahedronBufferGeometry.prototype.constructor = OctahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t */\n\n\tfunction OctahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'OctahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new OctahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tOctahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tOctahedronGeometry.prototype.constructor = OctahedronGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction IcosahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\n\t\tvar vertices = [\n\t\t\t- 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t, 0,\n\t\t\t 0, - 1, t, 0, 1, t, 0, - 1, - t, 0, 1, - t,\n\t\t\t t, 0, - 1, t, 0, 1, - t, 0, - 1, - t, 0, 1\n\t\t];\n\n\t\tvar indices = [\n\t\t\t 0, 11, 5, 0, 5, 1, 0, 1, 7, 0, 7, 10, 0, 10, 11,\n\t\t\t 1, 5, 9, 5, 11, 4, 11, 10, 2, 10, 7, 6, 7, 1, 8,\n\t\t\t 3, 9, 4, 3, 4, 2, 3, 2, 6, 3, 6, 8, 3, 8, 9,\n\t\t\t 4, 9, 5, 2, 4, 11, 6, 2, 10, 8, 6, 7, 9, 8, 1\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'IcosahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tIcosahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tIcosahedronBufferGeometry.prototype.constructor = IcosahedronBufferGeometry;\n\n\t/**\n\t * @author timothypratley / https://github.com/timothypratley\n\t */\n\n\tfunction IcosahedronGeometry( radius, detail ) {\n\n\t \tGeometry.call( this );\n\n\t\tthis.type = 'IcosahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new IcosahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tIcosahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tIcosahedronGeometry.prototype.constructor = IcosahedronGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction DodecahedronBufferGeometry( radius, detail ) {\n\n\t\tvar t = ( 1 + Math.sqrt( 5 ) ) / 2;\n\t\tvar r = 1 / t;\n\n\t\tvar vertices = [\n\n\t\t\t// (±1, ±1, ±1)\n\t\t\t- 1, - 1, - 1, - 1, - 1, 1,\n\t\t\t- 1, 1, - 1, - 1, 1, 1,\n\t\t\t 1, - 1, - 1, 1, - 1, 1,\n\t\t\t 1, 1, - 1, 1, 1, 1,\n\n\t\t\t// (0, ±1/φ, ±φ)\n\t\t\t 0, - r, - t, 0, - r, t,\n\t\t\t 0, r, - t, 0, r, t,\n\n\t\t\t// (±1/φ, ±φ, 0)\n\t\t\t- r, - t, 0, - r, t, 0,\n\t\t\t r, - t, 0, r, t, 0,\n\n\t\t\t// (±φ, 0, ±1/φ)\n\t\t\t- t, 0, - r, t, 0, - r,\n\t\t\t- t, 0, r, t, 0, r\n\t\t];\n\n\t\tvar indices = [\n\t\t\t 3, 11, 7, 3, 7, 15, 3, 15, 13,\n\t\t\t 7, 19, 17, 7, 17, 6, 7, 6, 15,\n\t\t\t17, 4, 8, 17, 8, 10, 17, 10, 6,\n\t\t\t 8, 0, 16, 8, 16, 2, 8, 2, 10,\n\t\t\t 0, 12, 1, 0, 1, 18, 0, 18, 16,\n\t\t\t 6, 10, 2, 6, 2, 13, 6, 13, 15,\n\t\t\t 2, 16, 18, 2, 18, 3, 2, 3, 13,\n\t\t\t18, 1, 9, 18, 9, 11, 18, 11, 3,\n\t\t\t 4, 14, 12, 4, 12, 0, 4, 0, 8,\n\t\t\t11, 9, 5, 11, 5, 19, 11, 19, 7,\n\t\t\t19, 5, 14, 19, 14, 4, 19, 4, 17,\n\t\t\t 1, 12, 14, 1, 14, 5, 1, 5, 9\n\t\t];\n\n\t\tPolyhedronBufferGeometry.call( this, vertices, indices, radius, detail );\n\n\t\tthis.type = 'DodecahedronBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t}\n\n\tDodecahedronBufferGeometry.prototype = Object.create( PolyhedronBufferGeometry.prototype );\n\tDodecahedronBufferGeometry.prototype.constructor = DodecahedronBufferGeometry;\n\n\t/**\n\t * @author Abe Pazos / https://hamoid.com\n\t */\n\n\tfunction DodecahedronGeometry( radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'DodecahedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new DodecahedronBufferGeometry( radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tDodecahedronGeometry.prototype = Object.create( Geometry.prototype );\n\tDodecahedronGeometry.prototype.constructor = DodecahedronGeometry;\n\n\t/**\n\t * @author clockworkgeek / https://github.com/clockworkgeek\n\t * @author timothypratley / https://github.com/timothypratley\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction PolyhedronGeometry( vertices, indices, radius, detail ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PolyhedronGeometry';\n\n\t\tthis.parameters = {\n\t\t\tvertices: vertices,\n\t\t\tindices: indices,\n\t\t\tradius: radius,\n\t\t\tdetail: detail\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PolyhedronBufferGeometry( vertices, indices, radius, detail ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tPolyhedronGeometry.prototype = Object.create( Geometry.prototype );\n\tPolyhedronGeometry.prototype.constructor = PolyhedronGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * Creates a tube which extrudes along a 3d spline.\n\t *\n\t */\n\n\tfunction TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TubeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\ttubularSegments = tubularSegments || 64;\n\t\tradius = radius || 1;\n\t\tradialSegments = radialSegments || 8;\n\t\tclosed = closed || false;\n\n\t\tvar frames = path.computeFrenetFrames( tubularSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = frames.tangents;\n\t\tthis.normals = frames.normals;\n\t\tthis.binormals = frames.binormals;\n\n\t\t// helper variables\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\t\tvar uv = new Vector2();\n\n\t\tvar i, j;\n\n\t\t// buffer\n\n\t\tvar vertices = [];\n\t\tvar normals = [];\n\t\tvar uvs = [];\n\t\tvar indices = [];\n\n\t\t// create buffer data\n\n\t\tgenerateBufferData();\n\n\t\t// build geometry\n\n\t\tthis.setIndex( ( indices.length > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) );\n\t\tthis.addAttribute( 'position', Float32Attribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', Float32Attribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', Float32Attribute( uvs, 2 ) );\n\n\t\t// functions\n\n\t\tfunction generateBufferData() {\n\n\t\t\tfor ( i = 0; i < tubularSegments; i ++ ) {\n\n\t\t\t\tgenerateSegment( i );\n\n\t\t\t}\n\n\t\t\t// if the geometry is not closed, generate the last row of vertices and normals\n\t\t\t// at the regular position on the given path\n\t\t\t//\n\t\t\t// if the geometry is closed, duplicate the first row of vertices and normals (uvs will differ)\n\n\t\t\tgenerateSegment( ( closed === false ) ? tubularSegments : 0 );\n\n\t\t\t// uvs are generated in a separate function.\n\t\t\t// this makes it easy compute correct values for closed geometries\n\n\t\t\tgenerateUVs();\n\n\t\t\t// finally create faces\n\n\t\t\tgenerateIndices();\n\n\t\t}\n\n\t\tfunction generateSegment( i ) {\n\n\t\t\t// we use getPointAt to sample evenly distributed points from the given path\n\n\t\t\tvar P = path.getPointAt( i / tubularSegments );\n\n\t\t\t// retrieve corresponding normal and binormal\n\n\t\t\tvar N = frames.normals[ i ];\n\t\t\tvar B = frames.binormals[ i ];\n\n\t\t\t// generate normals and vertices for the current segment\n\n\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\tvar sin = Math.sin( v );\n\t\t\t\tvar cos = - Math.cos( v );\n\n\t\t\t\t// normal\n\n\t\t\t\tnormal.x = ( cos * N.x + sin * B.x );\n\t\t\t\tnormal.y = ( cos * N.y + sin * B.y );\n\t\t\t\tnormal.z = ( cos * N.z + sin * B.z );\n\t\t\t\tnormal.normalize();\n\n\t\t\t\tnormals.push( normal.x, normal.y, normal.z );\n\n\t\t\t\t// vertex\n\n\t\t\t\tvertex.x = P.x + radius * normal.x;\n\t\t\t\tvertex.y = P.y + radius * normal.y;\n\t\t\t\tvertex.z = P.z + radius * normal.z;\n\n\t\t\t\tvertices.push( vertex.x, vertex.y, vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateIndices() {\n\n\t\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t\t// faces\n\n\t\t\t\t\tindices.push( a, b, d );\n\t\t\t\t\tindices.push( b, c, d );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction generateUVs() {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\t\t\tuv.x = i / tubularSegments;\n\t\t\t\t\tuv.y = j / radialSegments;\n\n\t\t\t\t\tuvs.push( uv.x, uv.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\tTubeBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTubeBufferGeometry.prototype.constructor = TubeBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode / https://github.com/oosmoxiecode\n\t * @author WestLangley / https://github.com/WestLangley\n\t * @author zz85 / https://github.com/zz85\n\t * @author miningold / https://github.com/miningold\n\t * @author jonobr1 / https://github.com/jonobr1\n\t *\n\t * Creates a tube which extrudes along a 3d spline.\n\t */\n\n\tfunction TubeGeometry( path, tubularSegments, radius, radialSegments, closed, taper ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TubeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpath: path,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradius: radius,\n\t\t\tradialSegments: radialSegments,\n\t\t\tclosed: closed\n\t\t};\n\n\t\tif ( taper !== undefined ) console.warn( 'THREE.TubeGeometry: taper has been removed.' );\n\n\t\tvar bufferGeometry = new TubeBufferGeometry( path, tubularSegments, radius, radialSegments, closed );\n\n\t\t// expose internals\n\n\t\tthis.tangents = bufferGeometry.tangents;\n\t\tthis.normals = bufferGeometry.normals;\n\t\tthis.binormals = bufferGeometry.binormals;\n\n\t\t// create geometry\n\n\t\tthis.fromBufferGeometry( bufferGeometry );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTubeGeometry.prototype = Object.create( Geometry.prototype );\n\tTubeGeometry.prototype.constructor = TubeGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t *\n\t * see: http://www.blackpawn.com/texts/pqtorus/\n\t */\n\tfunction TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tradius = radius || 100;\n\t\ttube = tube || 40;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 64;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\tp = p || 2;\n\t\tq = q || 3;\n\n\t\t// used to calculate buffer length\n\t\tvar vertexCount = ( ( radialSegments + 1 ) * ( tubularSegments + 1 ) );\n\t\tvar indexCount = radialSegments * tubularSegments * 2 * 3;\n\n\t\t// buffers\n\t\tvar indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 );\n\t\tvar vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );\n\n\t\t// helper variables\n\t\tvar i, j, index = 0, indexOffset = 0;\n\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\t\tvar uv = new Vector2();\n\n\t\tvar P1 = new Vector3();\n\t\tvar P2 = new Vector3();\n\n\t\tvar B = new Vector3();\n\t\tvar T = new Vector3();\n\t\tvar N = new Vector3();\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( i = 0; i <= tubularSegments; ++ i ) {\n\n\t\t\t// the radian \"u\" is used to calculate the position on the torus curve of the current tubular segement\n\n\t\t\tvar u = i / tubularSegments * p * Math.PI * 2;\n\n\t\t\t// now we calculate two points. P1 is our current position on the curve, P2 is a little farther ahead.\n\t\t\t// these points are used to create a special \"coordinate space\", which is necessary to calculate the correct vertex positions\n\n\t\t\tcalculatePositionOnCurve( u, p, q, radius, P1 );\n\t\t\tcalculatePositionOnCurve( u + 0.01, p, q, radius, P2 );\n\n\t\t\t// calculate orthonormal basis\n\n\t\t\tT.subVectors( P2, P1 );\n\t\t\tN.addVectors( P2, P1 );\n\t\t\tB.crossVectors( T, N );\n\t\t\tN.crossVectors( B, T );\n\n\t\t\t// normalize B, N. T can be ignored, we don't use it\n\n\t\t\tB.normalize();\n\t\t\tN.normalize();\n\n\t\t\tfor ( j = 0; j <= radialSegments; ++ j ) {\n\n\t\t\t\t// now calculate the vertices. they are nothing more than an extrusion of the torus curve.\n\t\t\t\t// because we extrude a shape in the xy-plane, there is no need to calculate a z-value.\n\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\t\t\t\tvar cx = - tube * Math.cos( v );\n\t\t\t\tvar cy = tube * Math.sin( v );\n\n\t\t\t\t// now calculate the final vertex position.\n\t\t\t\t// first we orient the extrusion with our basis vectos, then we add it to the current position on the curve\n\n\t\t\t\tvertex.x = P1.x + ( cx * N.x + cy * B.x );\n\t\t\t\tvertex.y = P1.y + ( cx * N.y + cy * B.y );\n\t\t\t\tvertex.z = P1.z + ( cx * N.z + cy * B.z );\n\n\t\t\t\t// vertex\n\t\t\t\tvertices.setXYZ( index, vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal (P1 is always the center/origin of the extrusion, thus we can use it to calculate the normal)\n\t\t\t\tnormal.subVectors( vertex, P1 ).normalize();\n\t\t\t\tnormals.setXYZ( index, normal.x, normal.y, normal.z );\n\n\t\t\t\t// uv\n\t\t\t\tuv.x = i / tubularSegments;\n\t\t\t\tuv.y = j / radialSegments;\n\t\t\t\tuvs.setXY( index, uv.x, uv.y );\n\n\t\t\t\t// increase index\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= tubularSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= radialSegments; i ++ ) {\n\n\t\t\t\t// indices\n\t\t\t\tvar a = ( radialSegments + 1 ) * ( j - 1 ) + ( i - 1 );\n\t\t\t\tvar b = ( radialSegments + 1 ) * j + ( i - 1 );\n\t\t\t\tvar c = ( radialSegments + 1 ) * j + i;\n\t\t\t\tvar d = ( radialSegments + 1 ) * ( j - 1 ) + i;\n\n\t\t\t\t// face one\n\t\t\t\tindices.setX( indexOffset, a ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, b ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, d ); indexOffset++;\n\n\t\t\t\t// face two\n\t\t\t\tindices.setX( indexOffset, b ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, c ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, d ); indexOffset++;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', vertices );\n\t\tthis.addAttribute( 'normal', normals );\n\t\tthis.addAttribute( 'uv', uvs );\n\n\t\t// this function calculates the current position on the torus curve\n\n\t\tfunction calculatePositionOnCurve( u, p, q, radius, position ) {\n\n\t\t\tvar cu = Math.cos( u );\n\t\t\tvar su = Math.sin( u );\n\t\t\tvar quOverP = q / p * u;\n\t\t\tvar cs = Math.cos( quOverP );\n\n\t\t\tposition.x = radius * ( 2 + cs ) * 0.5 * cu;\n\t\t\tposition.y = radius * ( 2 + cs ) * su * 0.5;\n\t\t\tposition.z = radius * Math.sin( quOverP ) * 0.5;\n\n\t\t}\n\n\t}\n\n\tTorusKnotBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusKnotBufferGeometry.prototype.constructor = TorusKnotBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t */\n\n\tfunction TorusKnotGeometry( radius, tube, tubularSegments, radialSegments, p, q, heightScale ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusKnotGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tradialSegments: radialSegments,\n\t\t\tp: p,\n\t\t\tq: q\n\t\t};\n\n\t\tif( heightScale !== undefined ) console.warn( 'THREE.TorusKnotGeometry: heightScale has been deprecated. Use .scale( x, y, z ) instead.' );\n\n\t\tthis.fromBufferGeometry( new TorusKnotBufferGeometry( radius, tube, tubularSegments, radialSegments, p, q ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tTorusKnotGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusKnotGeometry.prototype.constructor = TorusKnotGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'TorusBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tradius = radius || 100;\n\t\ttube = tube || 40;\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\ttubularSegments = Math.floor( tubularSegments ) || 6;\n\t\tarc = arc || Math.PI * 2;\n\n\t\t// used to calculate buffer length\n\t\tvar vertexCount = ( ( radialSegments + 1 ) * ( tubularSegments + 1 ) );\n\t\tvar indexCount = radialSegments * tubularSegments * 2 * 3;\n\n\t\t// buffers\n\t\tvar indices = new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount );\n\t\tvar vertices = new Float32Array( vertexCount * 3 );\n\t\tvar normals = new Float32Array( vertexCount * 3 );\n\t\tvar uvs = new Float32Array( vertexCount * 2 );\n\n\t\t// offset variables\n\t\tvar vertexBufferOffset = 0;\n\t\tvar uvBufferOffset = 0;\n\t\tvar indexBufferOffset = 0;\n\n\t\t// helper variables\n\t\tvar center = new Vector3();\n\t\tvar vertex = new Vector3();\n\t\tvar normal = new Vector3();\n\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\tfor ( j = 0; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= tubularSegments; i ++ ) {\n\n\t\t\t\tvar u = i / tubularSegments * arc;\n\t\t\t\tvar v = j / radialSegments * Math.PI * 2;\n\n\t\t\t\t// vertex\n\t\t\t\tvertex.x = ( radius + tube * Math.cos( v ) ) * Math.cos( u );\n\t\t\t\tvertex.y = ( radius + tube * Math.cos( v ) ) * Math.sin( u );\n\t\t\t\tvertex.z = tube * Math.sin( v );\n\n\t\t\t\tvertices[ vertexBufferOffset ] = vertex.x;\n\t\t\t\tvertices[ vertexBufferOffset + 1 ] = vertex.y;\n\t\t\t\tvertices[ vertexBufferOffset + 2 ] = vertex.z;\n\n\t\t\t\t// this vector is used to calculate the normal\n\t\t\t\tcenter.x = radius * Math.cos( u );\n\t\t\t\tcenter.y = radius * Math.sin( u );\n\n\t\t\t\t// normal\n\t\t\t\tnormal.subVectors( vertex, center ).normalize();\n\n\t\t\t\tnormals[ vertexBufferOffset ] = normal.x;\n\t\t\t\tnormals[ vertexBufferOffset + 1 ] = normal.y;\n\t\t\t\tnormals[ vertexBufferOffset + 2 ] = normal.z;\n\n\t\t\t\t// uv\n\t\t\t\tuvs[ uvBufferOffset ] = i / tubularSegments;\n\t\t\t\tuvs[ uvBufferOffset + 1 ] = j / radialSegments;\n\n\t\t\t\t// update offsets\n\t\t\t\tvertexBufferOffset += 3;\n\t\t\t\tuvBufferOffset += 2;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 1; j <= radialSegments; j ++ ) {\n\n\t\t\tfor ( i = 1; i <= tubularSegments; i ++ ) {\n\n\t\t\t\t// indices\n\t\t\t\tvar a = ( tubularSegments + 1 ) * j + i - 1;\n\t\t\t\tvar b = ( tubularSegments + 1 ) * ( j - 1 ) + i - 1;\n\t\t\t\tvar c = ( tubularSegments + 1 ) * ( j - 1 ) + i;\n\t\t\t\tvar d = ( tubularSegments + 1 ) * j + i;\n\n\t\t\t\t// face one\n\t\t\t\tindices[ indexBufferOffset ] = a;\n\t\t\t\tindices[ indexBufferOffset + 1 ] = b;\n\t\t\t\tindices[ indexBufferOffset + 2 ] = d;\n\n\t\t\t\t// face two\n\t\t\t\tindices[ indexBufferOffset + 3 ] = b;\n\t\t\t\tindices[ indexBufferOffset + 4 ] = c;\n\t\t\t\tindices[ indexBufferOffset + 5 ] = d;\n\n\t\t\t\t// update offset\n\t\t\t\tindexBufferOffset += 6;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\t\tthis.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tthis.addAttribute( 'position', new BufferAttribute( vertices, 3 ) );\n\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) );\n\n\t}\n\n\tTorusBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tTorusBufferGeometry.prototype.constructor = TorusBufferGeometry;\n\n\t/**\n\t * @author oosmoxiecode\n\t * @author mrdoob / http://mrdoob.com/\n\t * based on http://code.google.com/p/away3d/source/browse/trunk/fp10/Away3DLite/src/away3dlite/primitives/Torus.as?r=2888\n\t */\n\n\tfunction TorusGeometry( radius, tube, radialSegments, tubularSegments, arc ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'TorusGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\ttube: tube,\n\t\t\tradialSegments: radialSegments,\n\t\t\ttubularSegments: tubularSegments,\n\t\t\tarc: arc\n\t\t};\n\n\t\tthis.fromBufferGeometry( new TorusBufferGeometry( radius, tube, radialSegments, tubularSegments, arc ) );\n\n\t}\n\n\tTorusGeometry.prototype = Object.create( Geometry.prototype );\n\tTorusGeometry.prototype.constructor = TorusGeometry;\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tvar ShapeUtils = {\n\n\t\t// calculate area of the contour polygon\n\n\t\tarea: function ( contour ) {\n\n\t\t\tvar n = contour.length;\n\t\t\tvar a = 0.0;\n\n\t\t\tfor ( var p = n - 1, q = 0; q < n; p = q ++ ) {\n\n\t\t\t\ta += contour[ p ].x * contour[ q ].y - contour[ q ].x * contour[ p ].y;\n\n\t\t\t}\n\n\t\t\treturn a * 0.5;\n\n\t\t},\n\n\t\ttriangulate: ( function () {\n\n\t\t\t/**\n\t\t\t * This code is a quick port of code written in C++ which was submitted to\n\t\t\t * flipcode.com by John W. Ratcliff // July 22, 2000\n\t\t\t * See original code and more information here:\n\t\t\t * http://www.flipcode.com/archives/Efficient_Polygon_Triangulation.shtml\n\t\t\t *\n\t\t\t * ported to actionscript by Zevan Rosser\n\t\t\t * www.actionsnippet.com\n\t\t\t *\n\t\t\t * ported to javascript by Joshua Koo\n\t\t\t * http://www.lab4games.net/zz85/blog\n\t\t\t *\n\t\t\t */\n\n\t\t\tfunction snip( contour, u, v, w, n, verts ) {\n\n\t\t\t\tvar p;\n\t\t\t\tvar ax, ay, bx, by;\n\t\t\t\tvar cx, cy, px, py;\n\n\t\t\t\tax = contour[ verts[ u ] ].x;\n\t\t\t\tay = contour[ verts[ u ] ].y;\n\n\t\t\t\tbx = contour[ verts[ v ] ].x;\n\t\t\t\tby = contour[ verts[ v ] ].y;\n\n\t\t\t\tcx = contour[ verts[ w ] ].x;\n\t\t\t\tcy = contour[ verts[ w ] ].y;\n\n\t\t\t\tif ( ( bx - ax ) * ( cy - ay ) - ( by - ay ) * ( cx - ax ) <= 0 ) return false;\n\n\t\t\t\tvar aX, aY, bX, bY, cX, cY;\n\t\t\t\tvar apx, apy, bpx, bpy, cpx, cpy;\n\t\t\t\tvar cCROSSap, bCROSScp, aCROSSbp;\n\n\t\t\t\taX = cx - bx; aY = cy - by;\n\t\t\t\tbX = ax - cx; bY = ay - cy;\n\t\t\t\tcX = bx - ax; cY = by - ay;\n\n\t\t\t\tfor ( p = 0; p < n; p ++ ) {\n\n\t\t\t\t\tpx = contour[ verts[ p ] ].x;\n\t\t\t\t\tpy = contour[ verts[ p ] ].y;\n\n\t\t\t\t\tif ( ( ( px === ax ) && ( py === ay ) ) ||\n\t\t\t\t\t\t ( ( px === bx ) && ( py === by ) ) ||\n\t\t\t\t\t\t ( ( px === cx ) && ( py === cy ) ) )\tcontinue;\n\n\t\t\t\t\tapx = px - ax; apy = py - ay;\n\t\t\t\t\tbpx = px - bx; bpy = py - by;\n\t\t\t\t\tcpx = px - cx; cpy = py - cy;\n\n\t\t\t\t\t// see if p is inside triangle abc\n\n\t\t\t\t\taCROSSbp = aX * bpy - aY * bpx;\n\t\t\t\t\tcCROSSap = cX * apy - cY * apx;\n\t\t\t\t\tbCROSScp = bX * cpy - bY * cpx;\n\n\t\t\t\t\tif ( ( aCROSSbp >= - Number.EPSILON ) && ( bCROSScp >= - Number.EPSILON ) && ( cCROSSap >= - Number.EPSILON ) ) return false;\n\n\t\t\t\t}\n\n\t\t\t\treturn true;\n\n\t\t\t}\n\n\t\t\t// takes in an contour array and returns\n\n\t\t\treturn function triangulate( contour, indices ) {\n\n\t\t\t\tvar n = contour.length;\n\n\t\t\t\tif ( n < 3 ) return null;\n\n\t\t\t\tvar result = [],\n\t\t\t\t\tverts = [],\n\t\t\t\t\tvertIndices = [];\n\n\t\t\t\t/* we want a counter-clockwise polygon in verts */\n\n\t\t\t\tvar u, v, w;\n\n\t\t\t\tif ( ShapeUtils.area( contour ) > 0.0 ) {\n\n\t\t\t\t\tfor ( v = 0; v < n; v ++ ) verts[ v ] = v;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tfor ( v = 0; v < n; v ++ ) verts[ v ] = ( n - 1 ) - v;\n\n\t\t\t\t}\n\n\t\t\t\tvar nv = n;\n\n\t\t\t\t/* remove nv - 2 vertices, creating 1 triangle every time */\n\n\t\t\t\tvar count = 2 * nv; /* error detection */\n\n\t\t\t\tfor ( v = nv - 1; nv > 2; ) {\n\n\t\t\t\t\t/* if we loop, it is probably a non-simple polygon */\n\n\t\t\t\t\tif ( ( count -- ) <= 0 ) {\n\n\t\t\t\t\t\t//** Triangulate: ERROR - probable bad polygon!\n\n\t\t\t\t\t\t//throw ( \"Warning, unable to triangulate polygon!\" );\n\t\t\t\t\t\t//return null;\n\t\t\t\t\t\t// Sometimes warning is fine, especially polygons are triangulated in reverse.\n\t\t\t\t\t\tconsole.warn( 'THREE.ShapeUtils: Unable to triangulate polygon! in triangulate()' );\n\n\t\t\t\t\t\tif ( indices ) return vertIndices;\n\t\t\t\t\t\treturn result;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t/* three consecutive vertices in current polygon, */\n\n\t\t\t\t\tu = v; \t \tif ( nv <= u ) u = 0; /* previous */\n\t\t\t\t\tv = u + 1; if ( nv <= v ) v = 0; /* new v */\n\t\t\t\t\tw = v + 1; if ( nv <= w ) w = 0; /* next */\n\n\t\t\t\t\tif ( snip( contour, u, v, w, nv, verts ) ) {\n\n\t\t\t\t\t\tvar a, b, c, s, t;\n\n\t\t\t\t\t\t/* true names of the vertices */\n\n\t\t\t\t\t\ta = verts[ u ];\n\t\t\t\t\t\tb = verts[ v ];\n\t\t\t\t\t\tc = verts[ w ];\n\n\t\t\t\t\t\t/* output Triangle */\n\n\t\t\t\t\t\tresult.push( [ contour[ a ],\n\t\t\t\t\t\t\tcontour[ b ],\n\t\t\t\t\t\t\tcontour[ c ] ] );\n\n\n\t\t\t\t\t\tvertIndices.push( [ verts[ u ], verts[ v ], verts[ w ] ] );\n\n\t\t\t\t\t\t/* remove v from the remaining polygon */\n\n\t\t\t\t\t\tfor ( s = v, t = v + 1; t < nv; s ++, t ++ ) {\n\n\t\t\t\t\t\t\tverts[ s ] = verts[ t ];\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tnv --;\n\n\t\t\t\t\t\t/* reset error detection counter */\n\n\t\t\t\t\t\tcount = 2 * nv;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( indices ) return vertIndices;\n\t\t\t\treturn result;\n\n\t\t\t}\n\n\t\t} )(),\n\n\t\ttriangulateShape: function ( contour, holes ) {\n\n\t\t\tfunction removeDupEndPts(points) {\n\n\t\t\t\tvar l = points.length;\n\n\t\t\t\tif ( l > 2 && points[ l - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\t\t\tpoints.pop();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tremoveDupEndPts( contour );\n\t\t\tholes.forEach( removeDupEndPts );\n\n\t\t\tfunction point_in_segment_2D_colin( inSegPt1, inSegPt2, inOtherPt ) {\n\n\t\t\t\t// inOtherPt needs to be collinear to the inSegment\n\t\t\t\tif ( inSegPt1.x !== inSegPt2.x ) {\n\n\t\t\t\t\tif ( inSegPt1.x < inSegPt2.x ) {\n\n\t\t\t\t\t\treturn\t( ( inSegPt1.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt2.x ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn\t( ( inSegPt2.x <= inOtherPt.x ) && ( inOtherPt.x <= inSegPt1.x ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tif ( inSegPt1.y < inSegPt2.y ) {\n\n\t\t\t\t\t\treturn\t( ( inSegPt1.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt2.y ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\treturn\t( ( inSegPt2.y <= inOtherPt.y ) && ( inOtherPt.y <= inSegPt1.y ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction intersect_segments_2D( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1, inSeg2Pt2, inExcludeAdjacentSegs ) {\n\n\t\t\t\tvar seg1dx = inSeg1Pt2.x - inSeg1Pt1.x, seg1dy = inSeg1Pt2.y - inSeg1Pt1.y;\n\t\t\t\tvar seg2dx = inSeg2Pt2.x - inSeg2Pt1.x, seg2dy = inSeg2Pt2.y - inSeg2Pt1.y;\n\n\t\t\t\tvar seg1seg2dx = inSeg1Pt1.x - inSeg2Pt1.x;\n\t\t\t\tvar seg1seg2dy = inSeg1Pt1.y - inSeg2Pt1.y;\n\n\t\t\t\tvar limit\t\t= seg1dy * seg2dx - seg1dx * seg2dy;\n\t\t\t\tvar perpSeg1\t= seg1dy * seg1seg2dx - seg1dx * seg1seg2dy;\n\n\t\t\t\tif ( Math.abs( limit ) > Number.EPSILON ) {\n\n\t\t\t\t\t// not parallel\n\n\t\t\t\t\tvar perpSeg2;\n\t\t\t\t\tif ( limit > 0 ) {\n\n\t\t\t\t\t\tif ( ( perpSeg1 < 0 ) || ( perpSeg1 > limit ) ) \t\treturn [];\n\t\t\t\t\t\tperpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;\n\t\t\t\t\t\tif ( ( perpSeg2 < 0 ) || ( perpSeg2 > limit ) ) \t\treturn [];\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( ( perpSeg1 > 0 ) || ( perpSeg1 < limit ) ) \t\treturn [];\n\t\t\t\t\t\tperpSeg2 = seg2dy * seg1seg2dx - seg2dx * seg1seg2dy;\n\t\t\t\t\t\tif ( ( perpSeg2 > 0 ) || ( perpSeg2 < limit ) ) \t\treturn [];\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// i.e. to reduce rounding errors\n\t\t\t\t\t// intersection at endpoint of segment#1?\n\t\t\t\t\tif ( perpSeg2 === 0 ) {\n\n\t\t\t\t\t\tif ( ( inExcludeAdjacentSegs ) &&\n\t\t\t\t\t\t\t ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )\t\treturn [];\n\t\t\t\t\t\treturn [ inSeg1Pt1 ];\n\n\t\t\t\t\t}\n\t\t\t\t\tif ( perpSeg2 === limit ) {\n\n\t\t\t\t\t\tif ( ( inExcludeAdjacentSegs ) &&\n\t\t\t\t\t\t\t ( ( perpSeg1 === 0 ) || ( perpSeg1 === limit ) ) )\t\treturn [];\n\t\t\t\t\t\treturn [ inSeg1Pt2 ];\n\n\t\t\t\t\t}\n\t\t\t\t\t// intersection at endpoint of segment#2?\n\t\t\t\t\tif ( perpSeg1 === 0 )\t\treturn [ inSeg2Pt1 ];\n\t\t\t\t\tif ( perpSeg1 === limit )\treturn [ inSeg2Pt2 ];\n\n\t\t\t\t\t// return real intersection point\n\t\t\t\t\tvar factorSeg1 = perpSeg2 / limit;\n\t\t\t\t\treturn\t[ { x: inSeg1Pt1.x + factorSeg1 * seg1dx,\n\t\t\t\t\t\t\t\ty: inSeg1Pt1.y + factorSeg1 * seg1dy } ];\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// parallel or collinear\n\t\t\t\t\tif ( ( perpSeg1 !== 0 ) ||\n\t\t\t\t\t\t ( seg2dy * seg1seg2dx !== seg2dx * seg1seg2dy ) ) \t\t\treturn [];\n\n\t\t\t\t\t// they are collinear or degenerate\n\t\t\t\t\tvar seg1Pt = ( ( seg1dx === 0 ) && ( seg1dy === 0 ) );\t// segment1 is just a point?\n\t\t\t\t\tvar seg2Pt = ( ( seg2dx === 0 ) && ( seg2dy === 0 ) );\t// segment2 is just a point?\n\t\t\t\t\t// both segments are points\n\t\t\t\t\tif ( seg1Pt && seg2Pt ) {\n\n\t\t\t\t\t\tif ( ( inSeg1Pt1.x !== inSeg2Pt1.x ) ||\n\t\t\t\t\t\t\t ( inSeg1Pt1.y !== inSeg2Pt1.y ) )\t\treturn [];\t// they are distinct points\n\t\t\t\t\t\treturn [ inSeg1Pt1 ]; \t\t\t\t\t\t// they are the same point\n\n\t\t\t\t\t}\n\t\t\t\t\t// segment#1 is a single point\n\t\t\t\t\tif ( seg1Pt ) {\n\n\t\t\t\t\t\tif ( ! point_in_segment_2D_colin( inSeg2Pt1, inSeg2Pt2, inSeg1Pt1 ) )\t\treturn [];\t\t// but not in segment#2\n\t\t\t\t\t\treturn [ inSeg1Pt1 ];\n\n\t\t\t\t\t}\n\t\t\t\t\t// segment#2 is a single point\n\t\t\t\t\tif ( seg2Pt ) {\n\n\t\t\t\t\t\tif ( ! point_in_segment_2D_colin( inSeg1Pt1, inSeg1Pt2, inSeg2Pt1 ) )\t\treturn [];\t\t// but not in segment#1\n\t\t\t\t\t\treturn [ inSeg2Pt1 ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// they are collinear segments, which might overlap\n\t\t\t\t\tvar seg1min, seg1max, seg1minVal, seg1maxVal;\n\t\t\t\t\tvar seg2min, seg2max, seg2minVal, seg2maxVal;\n\t\t\t\t\tif ( seg1dx !== 0 ) {\n\n\t\t\t\t\t\t// the segments are NOT on a vertical line\n\t\t\t\t\t\tif ( inSeg1Pt1.x < inSeg1Pt2.x ) {\n\n\t\t\t\t\t\t\tseg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.x;\n\t\t\t\t\t\t\tseg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.x;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tseg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.x;\n\t\t\t\t\t\t\tseg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.x;\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( inSeg2Pt1.x < inSeg2Pt2.x ) {\n\n\t\t\t\t\t\t\tseg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.x;\n\t\t\t\t\t\t\tseg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.x;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tseg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.x;\n\t\t\t\t\t\t\tseg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.x;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// the segments are on a vertical line\n\t\t\t\t\t\tif ( inSeg1Pt1.y < inSeg1Pt2.y ) {\n\n\t\t\t\t\t\t\tseg1min = inSeg1Pt1; seg1minVal = inSeg1Pt1.y;\n\t\t\t\t\t\t\tseg1max = inSeg1Pt2; seg1maxVal = inSeg1Pt2.y;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tseg1min = inSeg1Pt2; seg1minVal = inSeg1Pt2.y;\n\t\t\t\t\t\t\tseg1max = inSeg1Pt1; seg1maxVal = inSeg1Pt1.y;\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( inSeg2Pt1.y < inSeg2Pt2.y ) {\n\n\t\t\t\t\t\t\tseg2min = inSeg2Pt1; seg2minVal = inSeg2Pt1.y;\n\t\t\t\t\t\t\tseg2max = inSeg2Pt2; seg2maxVal = inSeg2Pt2.y;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tseg2min = inSeg2Pt2; seg2minVal = inSeg2Pt2.y;\n\t\t\t\t\t\t\tseg2max = inSeg2Pt1; seg2maxVal = inSeg2Pt1.y;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\t\t\t\t\tif ( seg1minVal <= seg2minVal ) {\n\n\t\t\t\t\t\tif ( seg1maxVal < seg2minVal )\treturn [];\n\t\t\t\t\t\tif ( seg1maxVal === seg2minVal )\t{\n\n\t\t\t\t\t\t\tif ( inExcludeAdjacentSegs )\t\treturn [];\n\t\t\t\t\t\t\treturn [ seg2min ];\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( seg1maxVal <= seg2maxVal )\treturn [ seg2min, seg1max ];\n\t\t\t\t\t\treturn\t[ seg2min, seg2max ];\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( seg1minVal > seg2maxVal )\treturn [];\n\t\t\t\t\t\tif ( seg1minVal === seg2maxVal )\t{\n\n\t\t\t\t\t\t\tif ( inExcludeAdjacentSegs )\t\treturn [];\n\t\t\t\t\t\t\treturn [ seg1min ];\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( seg1maxVal <= seg2maxVal )\treturn [ seg1min, seg1max ];\n\t\t\t\t\t\treturn\t[ seg1min, seg2max ];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction isPointInsideAngle( inVertex, inLegFromPt, inLegToPt, inOtherPt ) {\n\n\t\t\t\t// The order of legs is important\n\n\t\t\t\t// translation of all points, so that Vertex is at (0,0)\n\t\t\t\tvar legFromPtX\t= inLegFromPt.x - inVertex.x, legFromPtY\t= inLegFromPt.y - inVertex.y;\n\t\t\t\tvar legToPtX\t= inLegToPt.x\t- inVertex.x, legToPtY\t\t= inLegToPt.y\t- inVertex.y;\n\t\t\t\tvar otherPtX\t= inOtherPt.x\t- inVertex.x, otherPtY\t\t= inOtherPt.y\t- inVertex.y;\n\n\t\t\t\t// main angle >0: < 180 deg.; 0: 180 deg.; <0: > 180 deg.\n\t\t\t\tvar from2toAngle\t= legFromPtX * legToPtY - legFromPtY * legToPtX;\n\t\t\t\tvar from2otherAngle\t= legFromPtX * otherPtY - legFromPtY * otherPtX;\n\n\t\t\t\tif ( Math.abs( from2toAngle ) > Number.EPSILON ) {\n\n\t\t\t\t\t// angle != 180 deg.\n\n\t\t\t\t\tvar other2toAngle\t\t= otherPtX * legToPtY - otherPtY * legToPtX;\n\t\t\t\t\t// console.log( \"from2to: \" + from2toAngle + \", from2other: \" + from2otherAngle + \", other2to: \" + other2toAngle );\n\n\t\t\t\t\tif ( from2toAngle > 0 ) {\n\n\t\t\t\t\t\t// main angle < 180 deg.\n\t\t\t\t\t\treturn\t( ( from2otherAngle >= 0 ) && ( other2toAngle >= 0 ) );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// main angle > 180 deg.\n\t\t\t\t\t\treturn\t( ( from2otherAngle >= 0 ) || ( other2toAngle >= 0 ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// angle == 180 deg.\n\t\t\t\t\t// console.log( \"from2to: 180 deg., from2other: \" + from2otherAngle );\n\t\t\t\t\treturn\t( from2otherAngle > 0 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\n\t\t\tfunction removeHoles( contour, holes ) {\n\n\t\t\t\tvar shape = contour.concat(); // work on this shape\n\t\t\t\tvar hole;\n\n\t\t\t\tfunction isCutLineInsideAngles( inShapeIdx, inHoleIdx ) {\n\n\t\t\t\t\t// Check if hole point lies within angle around shape point\n\t\t\t\t\tvar lastShapeIdx = shape.length - 1;\n\n\t\t\t\t\tvar prevShapeIdx = inShapeIdx - 1;\n\t\t\t\t\tif ( prevShapeIdx < 0 )\t\t\tprevShapeIdx = lastShapeIdx;\n\n\t\t\t\t\tvar nextShapeIdx = inShapeIdx + 1;\n\t\t\t\t\tif ( nextShapeIdx > lastShapeIdx )\tnextShapeIdx = 0;\n\n\t\t\t\t\tvar insideAngle = isPointInsideAngle( shape[ inShapeIdx ], shape[ prevShapeIdx ], shape[ nextShapeIdx ], hole[ inHoleIdx ] );\n\t\t\t\t\tif ( ! insideAngle ) {\n\n\t\t\t\t\t\t// console.log( \"Vertex (Shape): \" + inShapeIdx + \", Point: \" + hole[inHoleIdx].x + \"/\" + hole[inHoleIdx].y );\n\t\t\t\t\t\treturn\tfalse;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Check if shape point lies within angle around hole point\n\t\t\t\t\tvar lastHoleIdx = hole.length - 1;\n\n\t\t\t\t\tvar prevHoleIdx = inHoleIdx - 1;\n\t\t\t\t\tif ( prevHoleIdx < 0 )\t\t\tprevHoleIdx = lastHoleIdx;\n\n\t\t\t\t\tvar nextHoleIdx = inHoleIdx + 1;\n\t\t\t\t\tif ( nextHoleIdx > lastHoleIdx )\tnextHoleIdx = 0;\n\n\t\t\t\t\tinsideAngle = isPointInsideAngle( hole[ inHoleIdx ], hole[ prevHoleIdx ], hole[ nextHoleIdx ], shape[ inShapeIdx ] );\n\t\t\t\t\tif ( ! insideAngle ) {\n\n\t\t\t\t\t\t// console.log( \"Vertex (Hole): \" + inHoleIdx + \", Point: \" + shape[inShapeIdx].x + \"/\" + shape[inShapeIdx].y );\n\t\t\t\t\t\treturn\tfalse;\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn\ttrue;\n\n\t\t\t\t}\n\n\t\t\t\tfunction intersectsShapeEdge( inShapePt, inHolePt ) {\n\n\t\t\t\t\t// checks for intersections with shape edges\n\t\t\t\t\tvar sIdx, nextIdx, intersection;\n\t\t\t\t\tfor ( sIdx = 0; sIdx < shape.length; sIdx ++ ) {\n\n\t\t\t\t\t\tnextIdx = sIdx + 1; nextIdx %= shape.length;\n\t\t\t\t\t\tintersection = intersect_segments_2D( inShapePt, inHolePt, shape[ sIdx ], shape[ nextIdx ], true );\n\t\t\t\t\t\tif ( intersection.length > 0 )\t\treturn\ttrue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn\tfalse;\n\n\t\t\t\t}\n\n\t\t\t\tvar indepHoles = [];\n\n\t\t\t\tfunction intersectsHoleEdge( inShapePt, inHolePt ) {\n\n\t\t\t\t\t// checks for intersections with hole edges\n\t\t\t\t\tvar ihIdx, chkHole,\n\t\t\t\t\t\thIdx, nextIdx, intersection;\n\t\t\t\t\tfor ( ihIdx = 0; ihIdx < indepHoles.length; ihIdx ++ ) {\n\n\t\t\t\t\t\tchkHole = holes[ indepHoles[ ihIdx ]];\n\t\t\t\t\t\tfor ( hIdx = 0; hIdx < chkHole.length; hIdx ++ ) {\n\n\t\t\t\t\t\t\tnextIdx = hIdx + 1; nextIdx %= chkHole.length;\n\t\t\t\t\t\t\tintersection = intersect_segments_2D( inShapePt, inHolePt, chkHole[ hIdx ], chkHole[ nextIdx ], true );\n\t\t\t\t\t\t\tif ( intersection.length > 0 )\t\treturn\ttrue;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\t\t\t\t\treturn\tfalse;\n\n\t\t\t\t}\n\n\t\t\t\tvar holeIndex, shapeIndex,\n\t\t\t\t\tshapePt, holePt,\n\t\t\t\t\tholeIdx, cutKey, failedCuts = [],\n\t\t\t\t\ttmpShape1, tmpShape2,\n\t\t\t\t\ttmpHole1, tmpHole2;\n\n\t\t\t\tfor ( var h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\t\tindepHoles.push( h );\n\n\t\t\t\t}\n\n\t\t\t\tvar minShapeIndex = 0;\n\t\t\t\tvar counter = indepHoles.length * 2;\n\t\t\t\twhile ( indepHoles.length > 0 ) {\n\n\t\t\t\t\tcounter --;\n\t\t\t\t\tif ( counter < 0 ) {\n\n\t\t\t\t\t\tconsole.log( \"Infinite Loop! Holes left:\" + indepHoles.length + \", Probably Hole outside Shape!\" );\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// search for shape-vertex and hole-vertex,\n\t\t\t\t\t// which can be connected without intersections\n\t\t\t\t\tfor ( shapeIndex = minShapeIndex; shapeIndex < shape.length; shapeIndex ++ ) {\n\n\t\t\t\t\t\tshapePt = shape[ shapeIndex ];\n\t\t\t\t\t\tholeIndex\t= - 1;\n\n\t\t\t\t\t\t// search for hole which can be reached without intersections\n\t\t\t\t\t\tfor ( var h = 0; h < indepHoles.length; h ++ ) {\n\n\t\t\t\t\t\t\tholeIdx = indepHoles[ h ];\n\n\t\t\t\t\t\t\t// prevent multiple checks\n\t\t\t\t\t\t\tcutKey = shapePt.x + \":\" + shapePt.y + \":\" + holeIdx;\n\t\t\t\t\t\t\tif ( failedCuts[ cutKey ] !== undefined )\t\t\tcontinue;\n\n\t\t\t\t\t\t\thole = holes[ holeIdx ];\n\t\t\t\t\t\t\tfor ( var h2 = 0; h2 < hole.length; h2 ++ ) {\n\n\t\t\t\t\t\t\t\tholePt = hole[ h2 ];\n\t\t\t\t\t\t\t\tif ( ! isCutLineInsideAngles( shapeIndex, h2 ) )\t\tcontinue;\n\t\t\t\t\t\t\t\tif ( intersectsShapeEdge( shapePt, holePt ) )\t\tcontinue;\n\t\t\t\t\t\t\t\tif ( intersectsHoleEdge( shapePt, holePt ) )\t\tcontinue;\n\n\t\t\t\t\t\t\t\tholeIndex = h2;\n\t\t\t\t\t\t\t\tindepHoles.splice( h, 1 );\n\n\t\t\t\t\t\t\t\ttmpShape1 = shape.slice( 0, shapeIndex + 1 );\n\t\t\t\t\t\t\t\ttmpShape2 = shape.slice( shapeIndex );\n\t\t\t\t\t\t\t\ttmpHole1 = hole.slice( holeIndex );\n\t\t\t\t\t\t\t\ttmpHole2 = hole.slice( 0, holeIndex + 1 );\n\n\t\t\t\t\t\t\t\tshape = tmpShape1.concat( tmpHole1 ).concat( tmpHole2 ).concat( tmpShape2 );\n\n\t\t\t\t\t\t\t\tminShapeIndex = shapeIndex;\n\n\t\t\t\t\t\t\t\t// Debug only, to show the selected cuts\n\t\t\t\t\t\t\t\t// glob_CutLines.push( [ shapePt, holePt ] );\n\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif ( holeIndex >= 0 )\tbreak;\t\t// hole-vertex found\n\n\t\t\t\t\t\t\tfailedCuts[ cutKey ] = true;\t\t\t// remember failure\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( holeIndex >= 0 )\tbreak;\t\t// hole-vertex found\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn shape; \t\t\t/* shape with no holes */\n\n\t\t\t}\n\n\n\t\t\tvar i, il, f, face,\n\t\t\t\tkey, index,\n\t\t\t\tallPointsMap = {};\n\n\t\t\t// To maintain reference to old shape, one must match coordinates, or offset the indices from original arrays. It's probably easier to do the first.\n\n\t\t\tvar allpoints = contour.concat();\n\n\t\t\tfor ( var h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tArray.prototype.push.apply( allpoints, holes[ h ] );\n\n\t\t\t}\n\n\t\t\t//console.log( \"allpoints\",allpoints, allpoints.length );\n\n\t\t\t// prepare all points map\n\n\t\t\tfor ( i = 0, il = allpoints.length; i < il; i ++ ) {\n\n\t\t\t\tkey = allpoints[ i ].x + \":\" + allpoints[ i ].y;\n\n\t\t\t\tif ( allPointsMap[ key ] !== undefined ) {\n\n\t\t\t\t\tconsole.warn( \"THREE.ShapeUtils: Duplicate point\", key, i );\n\n\t\t\t\t}\n\n\t\t\t\tallPointsMap[ key ] = i;\n\n\t\t\t}\n\n\t\t\t// remove holes by cutting paths to holes and adding them to the shape\n\t\t\tvar shapeWithoutHoles = removeHoles( contour, holes );\n\n\t\t\tvar triangles = ShapeUtils.triangulate( shapeWithoutHoles, false ); // True returns indices for points of spooled shape\n\t\t\t//console.log( \"triangles\",triangles, triangles.length );\n\n\t\t\t// check all face vertices against all points map\n\n\t\t\tfor ( i = 0, il = triangles.length; i < il; i ++ ) {\n\n\t\t\t\tface = triangles[ i ];\n\n\t\t\t\tfor ( f = 0; f < 3; f ++ ) {\n\n\t\t\t\t\tkey = face[ f ].x + \":\" + face[ f ].y;\n\n\t\t\t\t\tindex = allPointsMap[ key ];\n\n\t\t\t\t\tif ( index !== undefined ) {\n\n\t\t\t\t\t\tface[ f ] = index;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn triangles.concat();\n\n\t\t},\n\n\t\tisClockWise: function ( pts ) {\n\n\t\t\treturn ShapeUtils.area( pts ) < 0;\n\n\t\t},\n\n\t\t// Bezier Curves formulas obtained from\n\t\t// http://en.wikipedia.org/wiki/B%C3%A9zier_curve\n\n\t\t// Quad Bezier Functions\n\n\t\tb2: ( function () {\n\n\t\t\tfunction b2p0( t, p ) {\n\n\t\t\t\tvar k = 1 - t;\n\t\t\t\treturn k * k * p;\n\n\t\t\t}\n\n\t\t\tfunction b2p1( t, p ) {\n\n\t\t\t\treturn 2 * ( 1 - t ) * t * p;\n\n\t\t\t}\n\n\t\t\tfunction b2p2( t, p ) {\n\n\t\t\t\treturn t * t * p;\n\n\t\t\t}\n\n\t\t\treturn function b2( t, p0, p1, p2 ) {\n\n\t\t\t\treturn b2p0( t, p0 ) + b2p1( t, p1 ) + b2p2( t, p2 );\n\n\t\t\t};\n\n\t\t} )(),\n\n\t\t// Cubic Bezier Functions\n\n\t\tb3: ( function () {\n\n\t\t\tfunction b3p0( t, p ) {\n\n\t\t\t\tvar k = 1 - t;\n\t\t\t\treturn k * k * k * p;\n\n\t\t\t}\n\n\t\t\tfunction b3p1( t, p ) {\n\n\t\t\t\tvar k = 1 - t;\n\t\t\t\treturn 3 * k * k * t * p;\n\n\t\t\t}\n\n\t\t\tfunction b3p2( t, p ) {\n\n\t\t\t\tvar k = 1 - t;\n\t\t\t\treturn 3 * k * t * t * p;\n\n\t\t\t}\n\n\t\t\tfunction b3p3( t, p ) {\n\n\t\t\t\treturn t * t * t * p;\n\n\t\t\t}\n\n\t\t\treturn function b3( t, p0, p1, p2, p3 ) {\n\n\t\t\t\treturn b3p0( t, p0 ) + b3p1( t, p1 ) + b3p2( t, p2 ) + b3p3( t, p3 );\n\n\t\t\t};\n\n\t\t} )()\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t * Creates extruded geometry from a path shape.\n\t *\n\t * parameters = {\n\t *\n\t * curveSegments: , // number of points on the curves\n\t * steps: , // number of points for z-side extrusions / used for subdividing segments of extrude spline too\n\t * amount: , // Depth to extrude the shape\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into the original shape bevel goes\n\t * bevelSize: , // how far from shape outline is bevel\n\t * bevelSegments: , // number of bevel layers\n\t *\n\t * extrudePath: // 3d spline path to extrude shape along. (creates Frames if .frames aren't defined)\n\t * frames: // containing arrays of tangents, normals, binormals\n\t *\n\t * uvGenerator: // object that provides UV generator functions\n\t *\n\t * }\n\t **/\n\n\tfunction ExtrudeGeometry( shapes, options ) {\n\n\t\tif ( typeof( shapes ) === \"undefined\" ) {\n\n\t\t\tshapes = [];\n\t\t\treturn;\n\n\t\t}\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ExtrudeGeometry';\n\n\t\tshapes = Array.isArray( shapes ) ? shapes : [ shapes ];\n\n\t\tthis.addShapeList( shapes, options );\n\n\t\tthis.computeFaceNormals();\n\n\t\t// can't really use automatic vertex normals\n\t\t// as then front and back sides get smoothed too\n\t\t// should do separate smoothing just for sides\n\n\t\t//this.computeVertexNormals();\n\n\t\t//console.log( \"took\", ( Date.now() - startTime ) );\n\n\t}\n\n\tExtrudeGeometry.prototype = Object.create( Geometry.prototype );\n\tExtrudeGeometry.prototype.constructor = ExtrudeGeometry;\n\n\tExtrudeGeometry.prototype.addShapeList = function ( shapes, options ) {\n\n\t\tvar sl = shapes.length;\n\n\t\tfor ( var s = 0; s < sl; s ++ ) {\n\n\t\t\tvar shape = shapes[ s ];\n\t\t\tthis.addShape( shape, options );\n\n\t\t}\n\n\t};\n\n\tExtrudeGeometry.prototype.addShape = function ( shape, options ) {\n\n\t\tvar amount = options.amount !== undefined ? options.amount : 100;\n\n\t\tvar bevelThickness = options.bevelThickness !== undefined ? options.bevelThickness : 6; // 10\n\t\tvar bevelSize = options.bevelSize !== undefined ? options.bevelSize : bevelThickness - 2; // 8\n\t\tvar bevelSegments = options.bevelSegments !== undefined ? options.bevelSegments : 3;\n\n\t\tvar bevelEnabled = options.bevelEnabled !== undefined ? options.bevelEnabled : true; // false\n\n\t\tvar curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;\n\n\t\tvar steps = options.steps !== undefined ? options.steps : 1;\n\n\t\tvar extrudePath = options.extrudePath;\n\t\tvar extrudePts, extrudeByPath = false;\n\n\t\t// Use default WorldUVGenerator if no UV generators are specified.\n\t\tvar uvgen = options.UVGenerator !== undefined ? options.UVGenerator : ExtrudeGeometry.WorldUVGenerator;\n\n\t\tvar splineTube, binormal, normal, position2;\n\t\tif ( extrudePath ) {\n\n\t\t\textrudePts = extrudePath.getSpacedPoints( steps );\n\n\t\t\textrudeByPath = true;\n\t\t\tbevelEnabled = false; // bevels not supported for path extrusion\n\n\t\t\t// SETUP TNB variables\n\n\t\t\t// TODO1 - have a .isClosed in spline?\n\n\t\t\tsplineTube = options.frames !== undefined ? options.frames : extrudePath.computeFrenetFrames( steps, false );\n\n\t\t\t// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);\n\n\t\t\tbinormal = new Vector3();\n\t\t\tnormal = new Vector3();\n\t\t\tposition2 = new Vector3();\n\n\t\t}\n\n\t\t// Safeguards if bevels are not enabled\n\n\t\tif ( ! bevelEnabled ) {\n\n\t\t\tbevelSegments = 0;\n\t\t\tbevelThickness = 0;\n\t\t\tbevelSize = 0;\n\n\t\t}\n\n\t\t// Variables initialization\n\n\t\tvar ahole, h, hl; // looping of holes\n\t\tvar scope = this;\n\n\t\tvar shapesOffset = this.vertices.length;\n\n\t\tvar shapePoints = shape.extractPoints( curveSegments );\n\n\t\tvar vertices = shapePoints.shape;\n\t\tvar holes = shapePoints.holes;\n\n\t\tvar reverse = ! ShapeUtils.isClockWise( vertices );\n\n\t\tif ( reverse ) {\n\n\t\t\tvertices = vertices.reverse();\n\n\t\t\t// Maybe we should also check if holes are in the opposite direction, just to be safe ...\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\n\t\t\t\tif ( ShapeUtils.isClockWise( ahole ) ) {\n\n\t\t\t\t\tholes[ h ] = ahole.reverse();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treverse = false; // If vertices are in order now, we shouldn't need to worry about them again (hopefully)!\n\n\t\t}\n\n\n\t\tvar faces = ShapeUtils.triangulateShape( vertices, holes );\n\n\t\t/* Vertices */\n\n\t\tvar contour = vertices; // vertices has all points but contour has only points of circumference\n\n\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\tahole = holes[ h ];\n\n\t\t\tvertices = vertices.concat( ahole );\n\n\t\t}\n\n\n\t\tfunction scalePt2( pt, vec, size ) {\n\n\t\t\tif ( ! vec ) console.error( \"THREE.ExtrudeGeometry: vec does not exist\" );\n\n\t\t\treturn vec.clone().multiplyScalar( size ).add( pt );\n\n\t\t}\n\n\t\tvar b, bs, t, z,\n\t\t\tvert, vlen = vertices.length,\n\t\t\tface, flen = faces.length;\n\n\n\t\t// Find directions for point movement\n\n\n\t\tfunction getBevelVec( inPt, inPrev, inNext ) {\n\n\t\t\t// computes for inPt the corresponding point inPt' on a new contour\n\t\t\t// shifted by 1 unit (length of normalized vector) to the left\n\t\t\t// if we walk along contour clockwise, this new contour is outside the old one\n\t\t\t//\n\t\t\t// inPt' is the intersection of the two lines parallel to the two\n\t\t\t// adjacent edges of inPt at a distance of 1 unit on the left side.\n\n\t\t\tvar v_trans_x, v_trans_y, shrink_by = 1;\t\t// resulting translation vector for inPt\n\n\t\t\t// good reading for geometry algorithms (here: line-line intersection)\n\t\t\t// http://geomalgorithms.com/a05-_intersect-1.html\n\n\t\t\tvar v_prev_x = inPt.x - inPrev.x, v_prev_y = inPt.y - inPrev.y;\n\t\t\tvar v_next_x = inNext.x - inPt.x, v_next_y = inNext.y - inPt.y;\n\n\t\t\tvar v_prev_lensq = ( v_prev_x * v_prev_x + v_prev_y * v_prev_y );\n\n\t\t\t// check for collinear edges\n\t\t\tvar collinear0 = ( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\tif ( Math.abs( collinear0 ) > Number.EPSILON ) {\n\n\t\t\t\t// not collinear\n\n\t\t\t\t// length of vectors for normalizing\n\n\t\t\t\tvar v_prev_len = Math.sqrt( v_prev_lensq );\n\t\t\t\tvar v_next_len = Math.sqrt( v_next_x * v_next_x + v_next_y * v_next_y );\n\n\t\t\t\t// shift adjacent points by unit vectors to the left\n\n\t\t\t\tvar ptPrevShift_x = ( inPrev.x - v_prev_y / v_prev_len );\n\t\t\t\tvar ptPrevShift_y = ( inPrev.y + v_prev_x / v_prev_len );\n\n\t\t\t\tvar ptNextShift_x = ( inNext.x - v_next_y / v_next_len );\n\t\t\t\tvar ptNextShift_y = ( inNext.y + v_next_x / v_next_len );\n\n\t\t\t\t// scaling factor for v_prev to intersection point\n\n\t\t\t\tvar sf = ( ( ptNextShift_x - ptPrevShift_x ) * v_next_y -\n\t\t\t\t\t\t\t( ptNextShift_y - ptPrevShift_y ) * v_next_x ) /\n\t\t\t\t\t\t ( v_prev_x * v_next_y - v_prev_y * v_next_x );\n\n\t\t\t\t// vector from inPt to intersection point\n\n\t\t\t\tv_trans_x = ( ptPrevShift_x + v_prev_x * sf - inPt.x );\n\t\t\t\tv_trans_y = ( ptPrevShift_y + v_prev_y * sf - inPt.y );\n\n\t\t\t\t// Don't normalize!, otherwise sharp corners become ugly\n\t\t\t\t// but prevent crazy spikes\n\t\t\t\tvar v_trans_lensq = ( v_trans_x * v_trans_x + v_trans_y * v_trans_y );\n\t\t\t\tif ( v_trans_lensq <= 2 ) {\n\n\t\t\t\t\treturn\tnew Vector2( v_trans_x, v_trans_y );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tshrink_by = Math.sqrt( v_trans_lensq / 2 );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// handle special case of collinear edges\n\n\t\t\t\tvar direction_eq = false;\t\t// assumes: opposite\n\t\t\t\tif ( v_prev_x > Number.EPSILON ) {\n\n\t\t\t\t\tif ( v_next_x > Number.EPSILON ) {\n\n\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else {\n\n\t\t\t\t\tif ( v_prev_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\tif ( v_next_x < - Number.EPSILON ) {\n\n\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( Math.sign( v_prev_y ) === Math.sign( v_next_y ) ) {\n\n\t\t\t\t\t\t\tdirection_eq = true;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( direction_eq ) {\n\n\t\t\t\t\t// console.log(\"Warning: lines are a straight sequence\");\n\t\t\t\t\tv_trans_x = - v_prev_y;\n\t\t\t\t\tv_trans_y = v_prev_x;\n\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// console.log(\"Warning: lines are a straight spike\");\n\t\t\t\t\tv_trans_x = v_prev_x;\n\t\t\t\t\tv_trans_y = v_prev_y;\n\t\t\t\t\tshrink_by = Math.sqrt( v_prev_lensq / 2 );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn\tnew Vector2( v_trans_x / shrink_by, v_trans_y / shrink_by );\n\n\t\t}\n\n\n\t\tvar contourMovements = [];\n\n\t\tfor ( var i = 0, il = contour.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\tif ( j === il ) j = 0;\n\t\t\tif ( k === il ) k = 0;\n\n\t\t\t// (j)---(i)---(k)\n\t\t\t// console.log('i,j,k', i, j , k)\n\n\t\t\tcontourMovements[ i ] = getBevelVec( contour[ i ], contour[ j ], contour[ k ] );\n\n\t\t}\n\n\t\tvar holesMovements = [], oneHoleMovements, verticesMovements = contourMovements.concat();\n\n\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\tahole = holes[ h ];\n\n\t\t\toneHoleMovements = [];\n\n\t\t\tfor ( i = 0, il = ahole.length, j = il - 1, k = i + 1; i < il; i ++, j ++, k ++ ) {\n\n\t\t\t\tif ( j === il ) j = 0;\n\t\t\t\tif ( k === il ) k = 0;\n\n\t\t\t\t// (j)---(i)---(k)\n\t\t\t\toneHoleMovements[ i ] = getBevelVec( ahole[ i ], ahole[ j ], ahole[ k ] );\n\n\t\t\t}\n\n\t\t\tholesMovements.push( oneHoleMovements );\n\t\t\tverticesMovements = verticesMovements.concat( oneHoleMovements );\n\n\t\t}\n\n\n\t\t// Loop bevelSegments, 1 for the front, 1 for the back\n\n\t\tfor ( b = 0; b < bevelSegments; b ++ ) {\n\n\t\t\t//for ( b = bevelSegments; b > 0; b -- ) {\n\n\t\t\tt = b / bevelSegments;\n\t\t\tz = bevelThickness * Math.cos( t * Math.PI / 2 );\n\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t// contract shape\n\n\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\n\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t}\n\n\t\t\t// expand holes\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\tv( vert.x, vert.y, - z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tbs = bevelSize;\n\n\t\t// Back facing vertices\n\n\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\tv( vert.x, vert.y, 0 );\n\n\t\t\t} else {\n\n\t\t\t\t// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );\n\n\t\t\t\tnormal.copy( splineTube.normals[ 0 ] ).multiplyScalar( vert.x );\n\t\t\t\tbinormal.copy( splineTube.binormals[ 0 ] ).multiplyScalar( vert.y );\n\n\t\t\t\tposition2.copy( extrudePts[ 0 ] ).add( normal ).add( binormal );\n\n\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Add stepped vertices...\n\t\t// Including front facing vertices\n\n\t\tvar s;\n\n\t\tfor ( s = 1; s <= steps; s ++ ) {\n\n\t\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\t\tvert = bevelEnabled ? scalePt2( vertices[ i ], verticesMovements[ i ], bs ) : vertices[ i ];\n\n\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\tv( vert.x, vert.y, amount / steps * s );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );\n\n\t\t\t\t\tnormal.copy( splineTube.normals[ s ] ).multiplyScalar( vert.x );\n\t\t\t\t\tbinormal.copy( splineTube.binormals[ s ] ).multiplyScalar( vert.y );\n\n\t\t\t\t\tposition2.copy( extrudePts[ s ] ).add( normal ).add( binormal );\n\n\t\t\t\t\tv( position2.x, position2.y, position2.z );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\n\t\t// Add bevel segments planes\n\n\t\t//for ( b = 1; b <= bevelSegments; b ++ ) {\n\t\tfor ( b = bevelSegments - 1; b >= 0; b -- ) {\n\n\t\t\tt = b / bevelSegments;\n\t\t\tz = bevelThickness * Math.cos ( t * Math.PI / 2 );\n\t\t\tbs = bevelSize * Math.sin( t * Math.PI / 2 );\n\n\t\t\t// contract shape\n\n\t\t\tfor ( i = 0, il = contour.length; i < il; i ++ ) {\n\n\t\t\t\tvert = scalePt2( contour[ i ], contourMovements[ i ], bs );\n\t\t\t\tv( vert.x, vert.y, amount + z );\n\n\t\t\t}\n\n\t\t\t// expand holes\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\t\t\t\toneHoleMovements = holesMovements[ h ];\n\n\t\t\t\tfor ( i = 0, il = ahole.length; i < il; i ++ ) {\n\n\t\t\t\t\tvert = scalePt2( ahole[ i ], oneHoleMovements[ i ], bs );\n\n\t\t\t\t\tif ( ! extrudeByPath ) {\n\n\t\t\t\t\t\tv( vert.x, vert.y, amount + z );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tv( vert.x, vert.y + extrudePts[ steps - 1 ].y, extrudePts[ steps - 1 ].x + z );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t/* Faces */\n\n\t\t// Top and bottom faces\n\n\t\tbuildLidFaces();\n\n\t\t// Sides faces\n\n\t\tbuildSideFaces();\n\n\n\t\t///// Internal functions\n\n\t\tfunction buildLidFaces() {\n\n\t\t\tif ( bevelEnabled ) {\n\n\t\t\t\tvar layer = 0; // steps + 1\n\t\t\t\tvar offset = vlen * layer;\n\n\t\t\t\t// Bottom faces\n\n\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\tf3( face[ 2 ] + offset, face[ 1 ] + offset, face[ 0 ] + offset );\n\n\t\t\t\t}\n\n\t\t\t\tlayer = steps + bevelSegments * 2;\n\t\t\t\toffset = vlen * layer;\n\n\t\t\t\t// Top faces\n\n\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\tf3( face[ 0 ] + offset, face[ 1 ] + offset, face[ 2 ] + offset );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// Bottom faces\n\n\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\tf3( face[ 2 ], face[ 1 ], face[ 0 ] );\n\n\t\t\t\t}\n\n\t\t\t\t// Top faces\n\n\t\t\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\t\t\tface = faces[ i ];\n\t\t\t\t\tf3( face[ 0 ] + vlen * steps, face[ 1 ] + vlen * steps, face[ 2 ] + vlen * steps );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\t// Create faces for the z-sides of the shape\n\n\t\tfunction buildSideFaces() {\n\n\t\t\tvar layeroffset = 0;\n\t\t\tsidewalls( contour, layeroffset );\n\t\t\tlayeroffset += contour.length;\n\n\t\t\tfor ( h = 0, hl = holes.length; h < hl; h ++ ) {\n\n\t\t\t\tahole = holes[ h ];\n\t\t\t\tsidewalls( ahole, layeroffset );\n\n\t\t\t\t//, true\n\t\t\t\tlayeroffset += ahole.length;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction sidewalls( contour, layeroffset ) {\n\n\t\t\tvar j, k;\n\t\t\ti = contour.length;\n\n\t\t\twhile ( -- i >= 0 ) {\n\n\t\t\t\tj = i;\n\t\t\t\tk = i - 1;\n\t\t\t\tif ( k < 0 ) k = contour.length - 1;\n\n\t\t\t\t//console.log('b', i,j, i-1, k,vertices.length);\n\n\t\t\t\tvar s = 0, sl = steps + bevelSegments * 2;\n\n\t\t\t\tfor ( s = 0; s < sl; s ++ ) {\n\n\t\t\t\t\tvar slen1 = vlen * s;\n\t\t\t\t\tvar slen2 = vlen * ( s + 1 );\n\n\t\t\t\t\tvar a = layeroffset + j + slen1,\n\t\t\t\t\t\tb = layeroffset + k + slen1,\n\t\t\t\t\t\tc = layeroffset + k + slen2,\n\t\t\t\t\t\td = layeroffset + j + slen2;\n\n\t\t\t\t\tf4( a, b, c, d, contour, s, sl, j, k );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\n\t\tfunction v( x, y, z ) {\n\n\t\t\tscope.vertices.push( new Vector3( x, y, z ) );\n\n\t\t}\n\n\t\tfunction f3( a, b, c ) {\n\n\t\t\ta += shapesOffset;\n\t\t\tb += shapesOffset;\n\t\t\tc += shapesOffset;\n\n\t\t\tscope.faces.push( new Face3( a, b, c, null, null, 0 ) );\n\n\t\t\tvar uvs = uvgen.generateTopUV( scope, a, b, c );\n\n\t\t\tscope.faceVertexUvs[ 0 ].push( uvs );\n\n\t\t}\n\n\t\tfunction f4( a, b, c, d, wallContour, stepIndex, stepsLength, contourIndex1, contourIndex2 ) {\n\n\t\t\ta += shapesOffset;\n\t\t\tb += shapesOffset;\n\t\t\tc += shapesOffset;\n\t\t\td += shapesOffset;\n\n\t\t\tscope.faces.push( new Face3( a, b, d, null, null, 1 ) );\n\t\t\tscope.faces.push( new Face3( b, c, d, null, null, 1 ) );\n\n\t\t\tvar uvs = uvgen.generateSideWallUV( scope, a, b, c, d );\n\n\t\t\tscope.faceVertexUvs[ 0 ].push( [ uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] ] );\n\t\t\tscope.faceVertexUvs[ 0 ].push( [ uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] ] );\n\n\t\t}\n\n\t};\n\n\tExtrudeGeometry.WorldUVGenerator = {\n\n\t\tgenerateTopUV: function ( geometry, indexA, indexB, indexC ) {\n\n\t\t\tvar vertices = geometry.vertices;\n\n\t\t\tvar a = vertices[ indexA ];\n\t\t\tvar b = vertices[ indexB ];\n\t\t\tvar c = vertices[ indexC ];\n\n\t\t\treturn [\n\t\t\t\tnew Vector2( a.x, a.y ),\n\t\t\t\tnew Vector2( b.x, b.y ),\n\t\t\t\tnew Vector2( c.x, c.y )\n\t\t\t];\n\n\t\t},\n\n\t\tgenerateSideWallUV: function ( geometry, indexA, indexB, indexC, indexD ) {\n\n\t\t\tvar vertices = geometry.vertices;\n\n\t\t\tvar a = vertices[ indexA ];\n\t\t\tvar b = vertices[ indexB ];\n\t\t\tvar c = vertices[ indexC ];\n\t\t\tvar d = vertices[ indexD ];\n\n\t\t\tif ( Math.abs( a.y - b.y ) < 0.01 ) {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a.x, 1 - a.z ),\n\t\t\t\t\tnew Vector2( b.x, 1 - b.z ),\n\t\t\t\t\tnew Vector2( c.x, 1 - c.z ),\n\t\t\t\t\tnew Vector2( d.x, 1 - d.z )\n\t\t\t\t];\n\n\t\t\t} else {\n\n\t\t\t\treturn [\n\t\t\t\t\tnew Vector2( a.y, 1 - a.z ),\n\t\t\t\t\tnew Vector2( b.y, 1 - b.z ),\n\t\t\t\t\tnew Vector2( c.y, 1 - c.z ),\n\t\t\t\t\tnew Vector2( d.y, 1 - d.z )\n\t\t\t\t];\n\n\t\t\t}\n\n\t\t}\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * Text = 3D Text\n\t *\n\t * parameters = {\n\t * font: , // font\n\t *\n\t * size: , // size of the text\n\t * height: , // thickness to extrude text\n\t * curveSegments: , // number of points on the curves\n\t *\n\t * bevelEnabled: , // turn on bevel\n\t * bevelThickness: , // how deep into text bevel goes\n\t * bevelSize: // how far from text outline is bevel\n\t * }\n\t */\n\n\tfunction TextGeometry( text, parameters ) {\n\n\t\tparameters = parameters || {};\n\n\t\tvar font = parameters.font;\n\n\t\tif ( (font && font.isFont) === false ) {\n\n\t\t\tconsole.error( 'THREE.TextGeometry: font parameter is not an instance of THREE.Font.' );\n\t\t\treturn new Geometry();\n\n\t\t}\n\n\t\tvar shapes = font.generateShapes( text, parameters.size, parameters.curveSegments );\n\n\t\t// translate parameters to ExtrudeGeometry API\n\n\t\tparameters.amount = parameters.height !== undefined ? parameters.height : 50;\n\n\t\t// defaults\n\n\t\tif ( parameters.bevelThickness === undefined ) parameters.bevelThickness = 10;\n\t\tif ( parameters.bevelSize === undefined ) parameters.bevelSize = 8;\n\t\tif ( parameters.bevelEnabled === undefined ) parameters.bevelEnabled = false;\n\n\t\tExtrudeGeometry.call( this, shapes, parameters );\n\n\t\tthis.type = 'TextGeometry';\n\n\t}\n\n\tTextGeometry.prototype = Object.create( ExtrudeGeometry.prototype );\n\tTextGeometry.prototype.constructor = TextGeometry;\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t * based on THREE.SphereGeometry\n\t */\n\n\tfunction SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'SphereBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 50;\n\n\t\twidthSegments = Math.max( 3, Math.floor( widthSegments ) || 8 );\n\t\theightSegments = Math.max( 2, Math.floor( heightSegments ) || 6 );\n\n\t\tphiStart = phiStart !== undefined ? phiStart : 0;\n\t\tphiLength = phiLength !== undefined ? phiLength : Math.PI * 2;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI;\n\n\t\tvar thetaEnd = thetaStart + thetaLength;\n\n\t\tvar vertexCount = ( ( widthSegments + 1 ) * ( heightSegments + 1 ) );\n\n\t\tvar positions = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );\n\n\t\tvar index = 0, vertices = [], normal = new Vector3();\n\n\t\tfor ( var y = 0; y <= heightSegments; y ++ ) {\n\n\t\t\tvar verticesRow = [];\n\n\t\t\tvar v = y / heightSegments;\n\n\t\t\tfor ( var x = 0; x <= widthSegments; x ++ ) {\n\n\t\t\t\tvar u = x / widthSegments;\n\n\t\t\t\tvar px = - radius * Math.cos( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\t\t\t\tvar py = radius * Math.cos( thetaStart + v * thetaLength );\n\t\t\t\tvar pz = radius * Math.sin( phiStart + u * phiLength ) * Math.sin( thetaStart + v * thetaLength );\n\n\t\t\t\tnormal.set( px, py, pz ).normalize();\n\n\t\t\t\tpositions.setXYZ( index, px, py, pz );\n\t\t\t\tnormals.setXYZ( index, normal.x, normal.y, normal.z );\n\t\t\t\tuvs.setXY( index, u, 1 - v );\n\n\t\t\t\tverticesRow.push( index );\n\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\tvertices.push( verticesRow );\n\n\t\t}\n\n\t\tvar indices = [];\n\n\t\tfor ( var y = 0; y < heightSegments; y ++ ) {\n\n\t\t\tfor ( var x = 0; x < widthSegments; x ++ ) {\n\n\t\t\t\tvar v1 = vertices[ y ][ x + 1 ];\n\t\t\t\tvar v2 = vertices[ y ][ x ];\n\t\t\t\tvar v3 = vertices[ y + 1 ][ x ];\n\t\t\t\tvar v4 = vertices[ y + 1 ][ x + 1 ];\n\n\t\t\t\tif ( y !== 0 || thetaStart > 0 ) indices.push( v1, v2, v4 );\n\t\t\t\tif ( y !== heightSegments - 1 || thetaEnd < Math.PI ) indices.push( v2, v3, v4 );\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.setIndex( new ( positions.count > 65535 ? Uint32Attribute : Uint16Attribute )( indices, 1 ) );\n\t\tthis.addAttribute( 'position', positions );\n\t\tthis.addAttribute( 'normal', normals );\n\t\tthis.addAttribute( 'uv', uvs );\n\n\t\tthis.boundingSphere = new Sphere( new Vector3(), radius );\n\n\t}\n\n\tSphereBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tSphereBufferGeometry.prototype.constructor = SphereBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction SphereGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'SphereGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new SphereBufferGeometry( radius, widthSegments, heightSegments, phiStart, phiLength, thetaStart, thetaLength ) );\n\n\t}\n\n\tSphereGeometry.prototype = Object.create( Geometry.prototype );\n\tSphereGeometry.prototype.constructor = SphereGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'RingBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tinnerRadius = innerRadius || 20;\n\t\touterRadius = outerRadius || 50;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\tthetaSegments = thetaSegments !== undefined ? Math.max( 3, thetaSegments ) : 8;\n\t\tphiSegments = phiSegments !== undefined ? Math.max( 1, phiSegments ) : 1;\n\n\t\t// these are used to calculate buffer length\n\t\tvar vertexCount = ( thetaSegments + 1 ) * ( phiSegments + 1 );\n\t\tvar indexCount = thetaSegments * phiSegments * 2 * 3;\n\n\t\t// buffers\n\t\tvar indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 );\n\t\tvar vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );\n\n\t\t// some helper variables\n\t\tvar index = 0, indexOffset = 0, segment;\n\t\tvar radius = innerRadius;\n\t\tvar radiusStep = ( ( outerRadius - innerRadius ) / phiSegments );\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar j, i;\n\n\t\t// generate vertices, normals and uvs\n\n\t\t// values are generate from the inside of the ring to the outside\n\n\t\tfor ( j = 0; j <= phiSegments; j ++ ) {\n\n\t\t\tfor ( i = 0; i <= thetaSegments; i ++ ) {\n\n\t\t\t\tsegment = thetaStart + i / thetaSegments * thetaLength;\n\n\t\t\t\t// vertex\n\t\t\t\tvertex.x = radius * Math.cos( segment );\n\t\t\t\tvertex.y = radius * Math.sin( segment );\n\t\t\t\tvertices.setXYZ( index, vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\t\t\t\tnormals.setXYZ( index, 0, 0, 1 );\n\n\t\t\t\t// uv\n\t\t\t\tuv.x = ( vertex.x / outerRadius + 1 ) / 2;\n\t\t\t\tuv.y = ( vertex.y / outerRadius + 1 ) / 2;\n\t\t\t\tuvs.setXY( index, uv.x, uv.y );\n\n\t\t\t\t// increase index\n\t\t\t\tindex++;\n\n\t\t\t}\n\n\t\t\t// increase the radius for next row of vertices\n\t\t\tradius += radiusStep;\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( j = 0; j < phiSegments; j ++ ) {\n\n\t\t\tvar thetaSegmentLevel = j * ( thetaSegments + 1 );\n\n\t\t\tfor ( i = 0; i < thetaSegments; i ++ ) {\n\n\t\t\t\tsegment = i + thetaSegmentLevel;\n\n\t\t\t\t// indices\n\t\t\t\tvar a = segment;\n\t\t\t\tvar b = segment + thetaSegments + 1;\n\t\t\t\tvar c = segment + thetaSegments + 2;\n\t\t\t\tvar d = segment + 1;\n\n\t\t\t\t// face one\n\t\t\t\tindices.setX( indexOffset, a ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, b ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, c ); indexOffset++;\n\n\t\t\t\t// face two\n\t\t\t\tindices.setX( indexOffset, a ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, c ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, d ); indexOffset++;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', vertices );\n\t\tthis.addAttribute( 'normal', normals );\n\t\tthis.addAttribute( 'uv', uvs );\n\n\t}\n\n\tRingBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tRingBufferGeometry.prototype.constructor = RingBufferGeometry;\n\n\t/**\n\t * @author Kaleb Murphy\n\t */\n\n\tfunction RingGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'RingGeometry';\n\n\t\tthis.parameters = {\n\t\t\tinnerRadius: innerRadius,\n\t\t\touterRadius: outerRadius,\n\t\t\tthetaSegments: thetaSegments,\n\t\t\tphiSegments: phiSegments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new RingBufferGeometry( innerRadius, outerRadius, thetaSegments, phiSegments, thetaStart, thetaLength ) );\n\n\t}\n\n\tRingGeometry.prototype = Object.create( Geometry.prototype );\n\tRingGeometry.prototype.constructor = RingGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Plane.as\n\t */\n\n\tfunction PlaneGeometry( width, height, widthSegments, heightSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'PlaneGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new PlaneBufferGeometry( width, height, widthSegments, heightSegments ) );\n\n\t}\n\n\tPlaneGeometry.prototype = Object.create( Geometry.prototype );\n\tPlaneGeometry.prototype.constructor = PlaneGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\t // points - to create a closed torus, one must use a set of points\n\t // like so: [ a, b, c, d, a ], see first is the same as last.\n\t // segments - the number of circumference segments to create\n\t // phiStart - the starting radian\n\t // phiLength - the radian (0 to 2PI) range of the lathed section\n\t // 2PI is a closed lathe, less than 2PI is a portion.\n\n\tfunction LatheBufferGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'LatheBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tsegments = Math.floor( segments ) || 12;\n\t\tphiStart = phiStart || 0;\n\t\tphiLength = phiLength || Math.PI * 2;\n\n\t\t// clamp phiLength so it's in range of [ 0, 2PI ]\n\t\tphiLength = _Math.clamp( phiLength, 0, Math.PI * 2 );\n\n\t\t// these are used to calculate buffer length\n\t\tvar vertexCount = ( segments + 1 ) * points.length;\n\t\tvar indexCount = segments * points.length * 2 * 3;\n\n\t\t// buffers\n\t\tvar indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ) , 1 );\n\t\tvar vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );\n\n\t\t// helper variables\n\t\tvar index = 0, indexOffset = 0, base;\n\t\tvar inverseSegments = 1.0 / segments;\n\t\tvar vertex = new Vector3();\n\t\tvar uv = new Vector2();\n\t\tvar i, j;\n\n\t\t// generate vertices and uvs\n\n\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\tvar phi = phiStart + i * inverseSegments * phiLength;\n\n\t\t\tvar sin = Math.sin( phi );\n\t\t\tvar cos = Math.cos( phi );\n\n\t\t\tfor ( j = 0; j <= ( points.length - 1 ); j ++ ) {\n\n\t\t\t\t// vertex\n\t\t\t\tvertex.x = points[ j ].x * sin;\n\t\t\t\tvertex.y = points[ j ].y;\n\t\t\t\tvertex.z = points[ j ].x * cos;\n\t\t\t\tvertices.setXYZ( index, vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// uv\n\t\t\t\tuv.x = i / segments;\n\t\t\t\tuv.y = j / ( points.length - 1 );\n\t\t\t\tuvs.setXY( index, uv.x, uv.y );\n\n\t\t\t\t// increase index\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// generate indices\n\n\t\tfor ( i = 0; i < segments; i ++ ) {\n\n\t\t\tfor ( j = 0; j < ( points.length - 1 ); j ++ ) {\n\n\t\t\t\tbase = j + i * points.length;\n\n\t\t\t\t// indices\n\t\t\t\tvar a = base;\n\t\t\t\tvar b = base + points.length;\n\t\t\t\tvar c = base + points.length + 1;\n\t\t\t\tvar d = base + 1;\n\n\t\t\t\t// face one\n\t\t\t\tindices.setX( indexOffset, a ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, b ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, d ); indexOffset++;\n\n\t\t\t\t// face two\n\t\t\t\tindices.setX( indexOffset, b ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, c ); indexOffset++;\n\t\t\t\tindices.setX( indexOffset, d ); indexOffset++;\n\n\t\t\t}\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', vertices );\n\t\tthis.addAttribute( 'uv', uvs );\n\n\t\t// generate normals\n\n\t\tthis.computeVertexNormals();\n\n\t\t// if the geometry is closed, we need to average the normals along the seam.\n\t\t// because the corresponding vertices are identical (but still have different UVs).\n\n\t\tif( phiLength === Math.PI * 2 ) {\n\n\t\t\tvar normals = this.attributes.normal.array;\n\t\t\tvar n1 = new Vector3();\n\t\t\tvar n2 = new Vector3();\n\t\t\tvar n = new Vector3();\n\n\t\t\t// this is the buffer offset for the last line of vertices\n\t\t\tbase = segments * points.length * 3;\n\n\t\t\tfor( i = 0, j = 0; i < points.length; i ++, j += 3 ) {\n\n\t\t\t\t// select the normal of the vertex in the first line\n\t\t\t\tn1.x = normals[ j + 0 ];\n\t\t\t\tn1.y = normals[ j + 1 ];\n\t\t\t\tn1.z = normals[ j + 2 ];\n\n\t\t\t\t// select the normal of the vertex in the last line\n\t\t\t\tn2.x = normals[ base + j + 0 ];\n\t\t\t\tn2.y = normals[ base + j + 1 ];\n\t\t\t\tn2.z = normals[ base + j + 2 ];\n\n\t\t\t\t// average normals\n\t\t\t\tn.addVectors( n1, n2 ).normalize();\n\n\t\t\t\t// assign the new values to both normals\n\t\t\t\tnormals[ j + 0 ] = normals[ base + j + 0 ] = n.x;\n\t\t\t\tnormals[ j + 1 ] = normals[ base + j + 1 ] = n.y;\n\t\t\t\tnormals[ j + 2 ] = normals[ base + j + 2 ] = n.z;\n\n\t\t\t} // next row\n\n\t\t}\n\n\t}\n\n\tLatheBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tLatheBufferGeometry.prototype.constructor = LatheBufferGeometry;\n\n\t/**\n\t * @author astrodud / http://astrodud.isgreat.org/\n\t * @author zz85 / https://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t */\n\n\t// points - to create a closed torus, one must use a set of points\n\t// like so: [ a, b, c, d, a ], see first is the same as last.\n\t// segments - the number of circumference segments to create\n\t// phiStart - the starting radian\n\t// phiLength - the radian (0 to 2PI) range of the lathed section\n\t// 2PI is a closed lathe, less than 2PI is a portion.\n\n\tfunction LatheGeometry( points, segments, phiStart, phiLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'LatheGeometry';\n\n\t\tthis.parameters = {\n\t\t\tpoints: points,\n\t\t\tsegments: segments,\n\t\t\tphiStart: phiStart,\n\t\t\tphiLength: phiLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new LatheBufferGeometry( points, segments, phiStart, phiLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tLatheGeometry.prototype = Object.create( Geometry.prototype );\n\tLatheGeometry.prototype.constructor = LatheGeometry;\n\n\t/**\n\t * @author jonobr1 / http://jonobr1.com\n\t *\n\t * Creates a one-sided polygonal geometry from a path shape. Similar to\n\t * ExtrudeGeometry.\n\t *\n\t * parameters = {\n\t *\n\t *\tcurveSegments: , // number of points on the curves. NOT USED AT THE MOMENT.\n\t *\n\t *\tmaterial: // material index for front and back faces\n\t *\tuvGenerator: // object that provides UV generator functions\n\t *\n\t * }\n\t **/\n\n\tfunction ShapeGeometry( shapes, options ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'ShapeGeometry';\n\n\t\tif ( Array.isArray( shapes ) === false ) shapes = [ shapes ];\n\n\t\tthis.addShapeList( shapes, options );\n\n\t\tthis.computeFaceNormals();\n\n\t}\n\n\tShapeGeometry.prototype = Object.create( Geometry.prototype );\n\tShapeGeometry.prototype.constructor = ShapeGeometry;\n\n\t/**\n\t * Add an array of shapes to THREE.ShapeGeometry.\n\t */\n\tShapeGeometry.prototype.addShapeList = function ( shapes, options ) {\n\n\t\tfor ( var i = 0, l = shapes.length; i < l; i ++ ) {\n\n\t\t\tthis.addShape( shapes[ i ], options );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * Adds a shape to THREE.ShapeGeometry, based on THREE.ExtrudeGeometry.\n\t */\n\tShapeGeometry.prototype.addShape = function ( shape, options ) {\n\n\t\tif ( options === undefined ) options = {};\n\t\tvar curveSegments = options.curveSegments !== undefined ? options.curveSegments : 12;\n\n\t\tvar material = options.material;\n\t\tvar uvgen = options.UVGenerator === undefined ? ExtrudeGeometry.WorldUVGenerator : options.UVGenerator;\n\n\t\t//\n\n\t\tvar i, l, hole;\n\n\t\tvar shapesOffset = this.vertices.length;\n\t\tvar shapePoints = shape.extractPoints( curveSegments );\n\n\t\tvar vertices = shapePoints.shape;\n\t\tvar holes = shapePoints.holes;\n\n\t\tvar reverse = ! ShapeUtils.isClockWise( vertices );\n\n\t\tif ( reverse ) {\n\n\t\t\tvertices = vertices.reverse();\n\n\t\t\t// Maybe we should also check if holes are in the opposite direction, just to be safe...\n\n\t\t\tfor ( i = 0, l = holes.length; i < l; i ++ ) {\n\n\t\t\t\thole = holes[ i ];\n\n\t\t\t\tif ( ShapeUtils.isClockWise( hole ) ) {\n\n\t\t\t\t\tholes[ i ] = hole.reverse();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treverse = false;\n\n\t\t}\n\n\t\tvar faces = ShapeUtils.triangulateShape( vertices, holes );\n\n\t\t// Vertices\n\n\t\tfor ( i = 0, l = holes.length; i < l; i ++ ) {\n\n\t\t\thole = holes[ i ];\n\t\t\tvertices = vertices.concat( hole );\n\n\t\t}\n\n\t\t//\n\n\t\tvar vert, vlen = vertices.length;\n\t\tvar face, flen = faces.length;\n\n\t\tfor ( i = 0; i < vlen; i ++ ) {\n\n\t\t\tvert = vertices[ i ];\n\n\t\t\tthis.vertices.push( new Vector3( vert.x, vert.y, 0 ) );\n\n\t\t}\n\n\t\tfor ( i = 0; i < flen; i ++ ) {\n\n\t\t\tface = faces[ i ];\n\n\t\t\tvar a = face[ 0 ] + shapesOffset;\n\t\t\tvar b = face[ 1 ] + shapesOffset;\n\t\t\tvar c = face[ 2 ] + shapesOffset;\n\n\t\t\tthis.faces.push( new Face3( a, b, c, null, null, material ) );\n\t\t\tthis.faceVertexUvs[ 0 ].push( uvgen.generateTopUV( this, a, b, c ) );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction EdgesGeometry( geometry, thresholdAngle ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthresholdAngle = ( thresholdAngle !== undefined ) ? thresholdAngle : 1;\n\n\t\tvar thresholdDot = Math.cos( _Math.DEG2RAD * thresholdAngle );\n\n\t\tvar edge = [ 0, 0 ], hash = {};\n\n\t\tfunction sortFunction( a, b ) {\n\n\t\t\treturn a - b;\n\n\t\t}\n\n\t\tvar keys = [ 'a', 'b', 'c' ];\n\n\t\tvar geometry2;\n\n\t\tif ( (geometry && geometry.isBufferGeometry) ) {\n\n\t\t\tgeometry2 = new Geometry();\n\t\t\tgeometry2.fromBufferGeometry( geometry );\n\n\t\t} else {\n\n\t\t\tgeometry2 = geometry.clone();\n\n\t\t}\n\n\t\tgeometry2.mergeVertices();\n\t\tgeometry2.computeFaceNormals();\n\n\t\tvar vertices = geometry2.vertices;\n\t\tvar faces = geometry2.faces;\n\n\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\tvar face = faces[ i ];\n\n\t\t\tfor ( var j = 0; j < 3; j ++ ) {\n\n\t\t\t\tedge[ 0 ] = face[ keys[ j ] ];\n\t\t\t\tedge[ 1 ] = face[ keys[ ( j + 1 ) % 3 ] ];\n\t\t\t\tedge.sort( sortFunction );\n\n\t\t\t\tvar key = edge.toString();\n\n\t\t\t\tif ( hash[ key ] === undefined ) {\n\n\t\t\t\t\thash[ key ] = { vert1: edge[ 0 ], vert2: edge[ 1 ], face1: i, face2: undefined };\n\n\t\t\t\t} else {\n\n\t\t\t\t\thash[ key ].face2 = i;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar coords = [];\n\n\t\tfor ( var key in hash ) {\n\n\t\t\tvar h = hash[ key ];\n\n\t\t\tif ( h.face2 === undefined || faces[ h.face1 ].normal.dot( faces[ h.face2 ].normal ) <= thresholdDot ) {\n\n\t\t\t\tvar vertex = vertices[ h.vert1 ];\n\t\t\t\tcoords.push( vertex.x );\n\t\t\t\tcoords.push( vertex.y );\n\t\t\t\tcoords.push( vertex.z );\n\n\t\t\t\tvertex = vertices[ h.vert2 ];\n\t\t\t\tcoords.push( vertex.x );\n\t\t\t\tcoords.push( vertex.y );\n\t\t\t\tcoords.push( vertex.z );\n\n\t\t\t}\n\n\t\t}\n\n\t\tthis.addAttribute( 'position', new BufferAttribute( new Float32Array( coords ), 3 ) );\n\n\t}\n\n\tEdgesGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tEdgesGeometry.prototype.constructor = EdgesGeometry;\n\n\t/**\n\t * @author Mugen87 / https://github.com/Mugen87\n\t */\n\n\tfunction CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CylinderBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tvar scope = this;\n\n\t\tradiusTop = radiusTop !== undefined ? radiusTop : 20;\n\t\tradiusBottom = radiusBottom !== undefined ? radiusBottom : 20;\n\t\theight = height !== undefined ? height : 100;\n\n\t\tradialSegments = Math.floor( radialSegments ) || 8;\n\t\theightSegments = Math.floor( heightSegments ) || 1;\n\n\t\topenEnded = openEnded !== undefined ? openEnded : false;\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0.0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : 2.0 * Math.PI;\n\n\t\t// used to calculate buffer length\n\n\t\tvar nbCap = 0;\n\n\t\tif ( openEnded === false ) {\n\n\t\t\tif ( radiusTop > 0 ) nbCap ++;\n\t\t\tif ( radiusBottom > 0 ) nbCap ++;\n\n\t\t}\n\n\t\tvar vertexCount = calculateVertexCount();\n\t\tvar indexCount = calculateIndexCount();\n\n\t\t// buffers\n\n\t\tvar indices = new BufferAttribute( new ( indexCount > 65535 ? Uint32Array : Uint16Array )( indexCount ), 1 );\n\t\tvar vertices = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar normals = new BufferAttribute( new Float32Array( vertexCount * 3 ), 3 );\n\t\tvar uvs = new BufferAttribute( new Float32Array( vertexCount * 2 ), 2 );\n\n\t\t// helper variables\n\n\t\tvar index = 0,\n\t\t indexOffset = 0,\n\t\t indexArray = [],\n\t\t halfHeight = height / 2;\n\n\t\t// group variables\n\t\tvar groupStart = 0;\n\n\t\t// generate geometry\n\n\t\tgenerateTorso();\n\n\t\tif ( openEnded === false ) {\n\n\t\t\tif ( radiusTop > 0 ) generateCap( true );\n\t\t\tif ( radiusBottom > 0 ) generateCap( false );\n\n\t\t}\n\n\t\t// build geometry\n\n\t\tthis.setIndex( indices );\n\t\tthis.addAttribute( 'position', vertices );\n\t\tthis.addAttribute( 'normal', normals );\n\t\tthis.addAttribute( 'uv', uvs );\n\n\t\t// helper functions\n\n\t\tfunction calculateVertexCount() {\n\n\t\t\tvar count = ( radialSegments + 1 ) * ( heightSegments + 1 );\n\n\t\t\tif ( openEnded === false ) {\n\n\t\t\t\tcount += ( ( radialSegments + 1 ) * nbCap ) + ( radialSegments * nbCap );\n\n\t\t\t}\n\n\t\t\treturn count;\n\n\t\t}\n\n\t\tfunction calculateIndexCount() {\n\n\t\t\tvar count = radialSegments * heightSegments * 2 * 3;\n\n\t\t\tif ( openEnded === false ) {\n\n\t\t\t\tcount += radialSegments * nbCap * 3;\n\n\t\t\t}\n\n\t\t\treturn count;\n\n\t\t}\n\n\t\tfunction generateTorso() {\n\n\t\t\tvar x, y;\n\t\t\tvar normal = new Vector3();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\t// this will be used to calculate the normal\n\t\t\tvar slope = ( radiusBottom - radiusTop ) / height;\n\n\t\t\t// generate vertices, normals and uvs\n\n\t\t\tfor ( y = 0; y <= heightSegments; y ++ ) {\n\n\t\t\t\tvar indexRow = [];\n\n\t\t\t\tvar v = y / heightSegments;\n\n\t\t\t\t// calculate the radius of the current row\n\t\t\t\tvar radius = v * ( radiusBottom - radiusTop ) + radiusTop;\n\n\t\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\t\tvar u = x / radialSegments;\n\n\t\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\t\tvar sinTheta = Math.sin( theta );\n\t\t\t\t\tvar cosTheta = Math.cos( theta );\n\n\t\t\t\t\t// vertex\n\t\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\t\tvertex.y = - v * height + halfHeight;\n\t\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\t\tvertices.setXYZ( index, vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t\t// normal\n\t\t\t\t\tnormal.set( sinTheta, slope, cosTheta ).normalize();\n\t\t\t\t\tnormals.setXYZ( index, normal.x, normal.y, normal.z );\n\n\t\t\t\t\t// uv\n\t\t\t\t\tuvs.setXY( index, u, 1 - v );\n\n\t\t\t\t\t// save index of vertex in respective row\n\t\t\t\t\tindexRow.push( index );\n\n\t\t\t\t\t// increase index\n\t\t\t\t\tindex ++;\n\n\t\t\t\t}\n\n\t\t\t\t// now save vertices of the row in our index array\n\t\t\t\tindexArray.push( indexRow );\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tfor ( y = 0; y < heightSegments; y ++ ) {\n\n\t\t\t\t\t// we use the index array to access the correct indices\n\t\t\t\t\tvar i1 = indexArray[ y ][ x ];\n\t\t\t\t\tvar i2 = indexArray[ y + 1 ][ x ];\n\t\t\t\t\tvar i3 = indexArray[ y + 1 ][ x + 1 ];\n\t\t\t\t\tvar i4 = indexArray[ y ][ x + 1 ];\n\n\t\t\t\t\t// face one\n\t\t\t\t\tindices.setX( indexOffset, i1 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i2 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i4 ); indexOffset ++;\n\n\t\t\t\t\t// face two\n\t\t\t\t\tindices.setX( indexOffset, i2 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i3 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i4 ); indexOffset ++;\n\n\t\t\t\t\t// update counters\n\t\t\t\t\tgroupCount += 6;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\t\t\tscope.addGroup( groupStart, groupCount, 0 );\n\n\t\t\t// calculate new start value for groups\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t\tfunction generateCap( top ) {\n\n\t\t\tvar x, centerIndexStart, centerIndexEnd;\n\n\t\t\tvar uv = new Vector2();\n\t\t\tvar vertex = new Vector3();\n\n\t\t\tvar groupCount = 0;\n\n\t\t\tvar radius = ( top === true ) ? radiusTop : radiusBottom;\n\t\t\tvar sign = ( top === true ) ? 1 : - 1;\n\n\t\t\t// save the index of the first center vertex\n\t\t\tcenterIndexStart = index;\n\n\t\t\t// first we generate the center vertex data of the cap.\n\t\t\t// because the geometry needs one set of uvs per face,\n\t\t\t// we must generate a center vertex per face/segment\n\n\t\t\tfor ( x = 1; x <= radialSegments; x ++ ) {\n\n\t\t\t\t// vertex\n\t\t\t\tvertices.setXYZ( index, 0, halfHeight * sign, 0 );\n\n\t\t\t\t// normal\n\t\t\t\tnormals.setXYZ( index, 0, sign, 0 );\n\n\t\t\t\t// uv\n\t\t\t\tuv.x = 0.5;\n\t\t\t\tuv.y = 0.5;\n\n\t\t\t\tuvs.setXY( index, uv.x, uv.y );\n\n\t\t\t\t// increase index\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// save the index of the last center vertex\n\t\t\tcenterIndexEnd = index;\n\n\t\t\t// now we generate the surrounding vertices, normals and uvs\n\n\t\t\tfor ( x = 0; x <= radialSegments; x ++ ) {\n\n\t\t\t\tvar u = x / radialSegments;\n\t\t\t\tvar theta = u * thetaLength + thetaStart;\n\n\t\t\t\tvar cosTheta = Math.cos( theta );\n\t\t\t\tvar sinTheta = Math.sin( theta );\n\n\t\t\t\t// vertex\n\t\t\t\tvertex.x = radius * sinTheta;\n\t\t\t\tvertex.y = halfHeight * sign;\n\t\t\t\tvertex.z = radius * cosTheta;\n\t\t\t\tvertices.setXYZ( index, vertex.x, vertex.y, vertex.z );\n\n\t\t\t\t// normal\n\t\t\t\tnormals.setXYZ( index, 0, sign, 0 );\n\n\t\t\t\t// uv\n\t\t\t\tuv.x = ( cosTheta * 0.5 ) + 0.5;\n\t\t\t\tuv.y = ( sinTheta * 0.5 * sign ) + 0.5;\n\t\t\t\tuvs.setXY( index, uv.x, uv.y );\n\n\t\t\t\t// increase index\n\t\t\t\tindex ++;\n\n\t\t\t}\n\n\t\t\t// generate indices\n\n\t\t\tfor ( x = 0; x < radialSegments; x ++ ) {\n\n\t\t\t\tvar c = centerIndexStart + x;\n\t\t\t\tvar i = centerIndexEnd + x;\n\n\t\t\t\tif ( top === true ) {\n\n\t\t\t\t\t// face top\n\t\t\t\t\tindices.setX( indexOffset, i ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i + 1 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, c ); indexOffset ++;\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// face bottom\n\t\t\t\t\tindices.setX( indexOffset, i + 1 ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, i ); indexOffset ++;\n\t\t\t\t\tindices.setX( indexOffset, c ); indexOffset ++;\n\n\t\t\t\t}\n\n\t\t\t\t// update counters\n\t\t\t\tgroupCount += 3;\n\n\t\t\t}\n\n\t\t\t// add a group to the geometry. this will ensure multi material support\n\t\t\tscope.addGroup( groupStart, groupCount, top === true ? 1 : 2 );\n\n\t\t\t// calculate new start value for groups\n\t\t\tgroupStart += groupCount;\n\n\t\t}\n\n\t}\n\n\tCylinderBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCylinderBufferGeometry.prototype.constructor = CylinderBufferGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CylinderGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CylinderGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradiusTop: radiusTop,\n\t\t\tradiusBottom: radiusBottom,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CylinderBufferGeometry( radiusTop, radiusBottom, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tCylinderGeometry.prototype = Object.create( Geometry.prototype );\n\tCylinderGeometry.prototype.constructor = CylinderGeometry;\n\n\t/**\n\t * @author abelnation / http://github.com/abelnation\n\t */\n\n\tfunction ConeGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeGeometry.prototype = Object.create( CylinderGeometry.prototype );\n\tConeGeometry.prototype.constructor = ConeGeometry;\n\n\t/**\n\t * @author: abelnation / http://github.com/abelnation\n\t */\n\n\tfunction ConeBufferGeometry( radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength ) {\n\n\t\tCylinderBufferGeometry.call( this, 0, radius, height, radialSegments, heightSegments, openEnded, thetaStart, thetaLength );\n\n\t\tthis.type = 'ConeBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\theight: height,\n\t\t\tradialSegments: radialSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\topenEnded: openEnded,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t}\n\n\tConeBufferGeometry.prototype = Object.create( CylinderBufferGeometry.prototype );\n\tConeBufferGeometry.prototype.constructor = ConeBufferGeometry;\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'CircleBufferGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tradius = radius || 50;\n\t\tsegments = segments !== undefined ? Math.max( 3, segments ) : 8;\n\n\t\tthetaStart = thetaStart !== undefined ? thetaStart : 0;\n\t\tthetaLength = thetaLength !== undefined ? thetaLength : Math.PI * 2;\n\n\t\tvar vertices = segments + 2;\n\n\t\tvar positions = new Float32Array( vertices * 3 );\n\t\tvar normals = new Float32Array( vertices * 3 );\n\t\tvar uvs = new Float32Array( vertices * 2 );\n\n\t\t// center data is already zero, but need to set a few extras\n\t\tnormals[ 2 ] = 1.0;\n\t\tuvs[ 0 ] = 0.5;\n\t\tuvs[ 1 ] = 0.5;\n\n\t\tfor ( var s = 0, i = 3, ii = 2 ; s <= segments; s ++, i += 3, ii += 2 ) {\n\n\t\t\tvar segment = thetaStart + s / segments * thetaLength;\n\n\t\t\tpositions[ i ] = radius * Math.cos( segment );\n\t\t\tpositions[ i + 1 ] = radius * Math.sin( segment );\n\n\t\t\tnormals[ i + 2 ] = 1; // normal z\n\n\t\t\tuvs[ ii ] = ( positions[ i ] / radius + 1 ) / 2;\n\t\t\tuvs[ ii + 1 ] = ( positions[ i + 1 ] / radius + 1 ) / 2;\n\n\t\t}\n\n\t\tvar indices = [];\n\n\t\tfor ( var i = 1; i <= segments; i ++ ) {\n\n\t\t\tindices.push( i, i + 1, 0 );\n\n\t\t}\n\n\t\tthis.setIndex( new BufferAttribute( new Uint16Array( indices ), 1 ) );\n\t\tthis.addAttribute( 'position', new BufferAttribute( positions, 3 ) );\n\t\tthis.addAttribute( 'normal', new BufferAttribute( normals, 3 ) );\n\t\tthis.addAttribute( 'uv', new BufferAttribute( uvs, 2 ) );\n\n\t\tthis.boundingSphere = new Sphere( new Vector3(), radius );\n\n\t}\n\n\tCircleBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tCircleBufferGeometry.prototype.constructor = CircleBufferGeometry;\n\n\t/**\n\t * @author hughes\n\t */\n\n\tfunction CircleGeometry( radius, segments, thetaStart, thetaLength ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'CircleGeometry';\n\n\t\tthis.parameters = {\n\t\t\tradius: radius,\n\t\t\tsegments: segments,\n\t\t\tthetaStart: thetaStart,\n\t\t\tthetaLength: thetaLength\n\t\t};\n\n\t\tthis.fromBufferGeometry( new CircleBufferGeometry( radius, segments, thetaStart, thetaLength ) );\n\n\t}\n\n\tCircleGeometry.prototype = Object.create( Geometry.prototype );\n\tCircleGeometry.prototype.constructor = CircleGeometry;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * based on http://papervision3d.googlecode.com/svn/trunk/as3/trunk/src/org/papervision3d/objects/primitives/Cube.as\n\t */\n\n\tfunction BoxGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) {\n\n\t\tGeometry.call( this );\n\n\t\tthis.type = 'BoxGeometry';\n\n\t\tthis.parameters = {\n\t\t\twidth: width,\n\t\t\theight: height,\n\t\t\tdepth: depth,\n\t\t\twidthSegments: widthSegments,\n\t\t\theightSegments: heightSegments,\n\t\t\tdepthSegments: depthSegments\n\t\t};\n\n\t\tthis.fromBufferGeometry( new BoxBufferGeometry( width, height, depth, widthSegments, heightSegments, depthSegments ) );\n\t\tthis.mergeVertices();\n\n\t}\n\n\tBoxGeometry.prototype = Object.create( Geometry.prototype );\n\tBoxGeometry.prototype.constructor = BoxGeometry;\n\n\n\n\tvar Geometries = Object.freeze({\n\t\tWireframeGeometry: WireframeGeometry,\n\t\tParametricGeometry: ParametricGeometry,\n\t\tParametricBufferGeometry: ParametricBufferGeometry,\n\t\tTetrahedronGeometry: TetrahedronGeometry,\n\t\tTetrahedronBufferGeometry: TetrahedronBufferGeometry,\n\t\tOctahedronGeometry: OctahedronGeometry,\n\t\tOctahedronBufferGeometry: OctahedronBufferGeometry,\n\t\tIcosahedronGeometry: IcosahedronGeometry,\n\t\tIcosahedronBufferGeometry: IcosahedronBufferGeometry,\n\t\tDodecahedronGeometry: DodecahedronGeometry,\n\t\tDodecahedronBufferGeometry: DodecahedronBufferGeometry,\n\t\tPolyhedronGeometry: PolyhedronGeometry,\n\t\tPolyhedronBufferGeometry: PolyhedronBufferGeometry,\n\t\tTubeGeometry: TubeGeometry,\n\t\tTubeBufferGeometry: TubeBufferGeometry,\n\t\tTorusKnotGeometry: TorusKnotGeometry,\n\t\tTorusKnotBufferGeometry: TorusKnotBufferGeometry,\n\t\tTorusGeometry: TorusGeometry,\n\t\tTorusBufferGeometry: TorusBufferGeometry,\n\t\tTextGeometry: TextGeometry,\n\t\tSphereBufferGeometry: SphereBufferGeometry,\n\t\tSphereGeometry: SphereGeometry,\n\t\tRingGeometry: RingGeometry,\n\t\tRingBufferGeometry: RingBufferGeometry,\n\t\tPlaneBufferGeometry: PlaneBufferGeometry,\n\t\tPlaneGeometry: PlaneGeometry,\n\t\tLatheGeometry: LatheGeometry,\n\t\tLatheBufferGeometry: LatheBufferGeometry,\n\t\tShapeGeometry: ShapeGeometry,\n\t\tExtrudeGeometry: ExtrudeGeometry,\n\t\tEdgesGeometry: EdgesGeometry,\n\t\tConeGeometry: ConeGeometry,\n\t\tConeBufferGeometry: ConeBufferGeometry,\n\t\tCylinderGeometry: CylinderGeometry,\n\t\tCylinderBufferGeometry: CylinderBufferGeometry,\n\t\tCircleBufferGeometry: CircleBufferGeometry,\n\t\tCircleGeometry: CircleGeometry,\n\t\tBoxBufferGeometry: BoxBufferGeometry,\n\t\tBoxGeometry: BoxGeometry\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ShadowMaterial() {\n\n\t\tShaderMaterial.call( this, {\n\t\t\tuniforms: UniformsUtils.merge( [\n\t\t\t\tUniformsLib[ \"lights\" ],\n\t\t\t\t{\n\t\t\t\t\topacity: { value: 1.0 }\n\t\t\t\t}\n\t\t\t] ),\n\t\t\tvertexShader: ShaderChunk[ 'shadow_vert' ],\n\t\t\tfragmentShader: ShaderChunk[ 'shadow_frag' ]\n\t\t} );\n\n\t\tthis.lights = true;\n\t\tthis.transparent = true;\n\n\t\tObject.defineProperties( this, {\n\t\t\topacity: {\n\t\t\t\tenumerable: true,\n\t\t\t\tget: function () {\n\t\t\t\t\treturn this.uniforms.opacity.value;\n\t\t\t\t},\n\t\t\t\tset: function ( value ) {\n\t\t\t\t\tthis.uniforms.opacity.value = value;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tShadowMaterial.prototype = Object.create( ShaderMaterial.prototype );\n\tShadowMaterial.prototype.constructor = ShadowMaterial;\n\n\tShadowMaterial.prototype.isShadowMaterial = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction RawShaderMaterial( parameters ) {\n\n\t\tShaderMaterial.call( this, parameters );\n\n\t\tthis.type = 'RawShaderMaterial';\n\n\t}\n\n\tRawShaderMaterial.prototype = Object.create( ShaderMaterial.prototype );\n\tRawShaderMaterial.prototype.constructor = RawShaderMaterial;\n\n\tRawShaderMaterial.prototype.isRawShaderMaterial = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction MultiMaterial( materials ) {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.type = 'MultiMaterial';\n\n\t\tthis.materials = materials instanceof Array ? materials : [];\n\n\t\tthis.visible = true;\n\n\t}\n\n\tMultiMaterial.prototype = {\n\n\t\tconstructor: MultiMaterial,\n\n\t\tisMultiMaterial: true,\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar output = {\n\t\t\t\tmetadata: {\n\t\t\t\t\tversion: 4.2,\n\t\t\t\t\ttype: 'material',\n\t\t\t\t\tgenerator: 'MaterialExporter'\n\t\t\t\t},\n\t\t\t\tuuid: this.uuid,\n\t\t\t\ttype: this.type,\n\t\t\t\tmaterials: []\n\t\t\t};\n\n\t\t\tvar materials = this.materials;\n\n\t\t\tfor ( var i = 0, l = materials.length; i < l; i ++ ) {\n\n\t\t\t\tvar material = materials[ i ].toJSON( meta );\n\t\t\t\tdelete material.metadata;\n\n\t\t\t\toutput.materials.push( material );\n\n\t\t\t}\n\n\t\t\toutput.visible = this.visible;\n\n\t\t\treturn output;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\tvar material = new this.constructor();\n\n\t\t\tfor ( var i = 0; i < this.materials.length; i ++ ) {\n\n\t\t\t\tmaterial.materials.push( this.materials[ i ].clone() );\n\n\t\t\t}\n\n\t\t\tmaterial.visible = this.visible;\n\n\t\t\treturn material;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * color: ,\n\t * roughness: ,\n\t * metalness: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * roughnessMap: new THREE.Texture( ),\n\t *\n\t * metalnessMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),\n\t * envMapIntensity: \n\t *\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshStandardMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.type = 'MeshStandardMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.roughness = 0.5;\n\t\tthis.metalness = 0.5;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.roughnessMap = null;\n\n\t\tthis.metalnessMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.envMapIntensity = 1.0;\n\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshStandardMaterial.prototype = Object.create( Material.prototype );\n\tMeshStandardMaterial.prototype.constructor = MeshStandardMaterial;\n\n\tMeshStandardMaterial.prototype.isMeshStandardMaterial = true;\n\n\tMeshStandardMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'STANDARD': '' };\n\n\t\tthis.color.copy( source.color );\n\t\tthis.roughness = source.roughness;\n\t\tthis.metalness = source.metalness;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.roughnessMap = source.roughnessMap;\n\n\t\tthis.metalnessMap = source.metalnessMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.envMapIntensity = source.envMapIntensity;\n\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * parameters = {\n\t * reflectivity: \n\t * }\n\t */\n\n\tfunction MeshPhysicalMaterial( parameters ) {\n\n\t\tMeshStandardMaterial.call( this );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.type = 'MeshPhysicalMaterial';\n\n\t\tthis.reflectivity = 0.5; // maps to F0 = 0.04\n\n\t\tthis.clearCoat = 0.0;\n\t\tthis.clearCoatRoughness = 0.0;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhysicalMaterial.prototype = Object.create( MeshStandardMaterial.prototype );\n\tMeshPhysicalMaterial.prototype.constructor = MeshPhysicalMaterial;\n\n\tMeshPhysicalMaterial.prototype.isMeshPhysicalMaterial = true;\n\n\tMeshPhysicalMaterial.prototype.copy = function ( source ) {\n\n\t\tMeshStandardMaterial.prototype.copy.call( this, source );\n\n\t\tthis.defines = { 'PHYSICAL': '' };\n\n\t\tthis.reflectivity = source.reflectivity;\n\n\t\tthis.clearCoat = source.clearCoat;\n\t\tthis.clearCoatRoughness = source.clearCoatRoughness;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * specular: ,\n\t * shininess: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * bumpMap: new THREE.Texture( ),\n\t * bumpScale: ,\n\t *\n\t * normalMap: new THREE.Texture( ),\n\t * normalScale: ,\n\t *\n\t * displacementMap: new THREE.Texture( ),\n\t * displacementScale: ,\n\t * displacementBias: ,\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshPhongMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshPhongMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\t\tthis.specular = new Color( 0x111111 );\n\t\tthis.shininess = 30;\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.bumpMap = null;\n\t\tthis.bumpScale = 1;\n\n\t\tthis.normalMap = null;\n\t\tthis.normalScale = new Vector2( 1, 1 );\n\n\t\tthis.displacementMap = null;\n\t\tthis.displacementScale = 1;\n\t\tthis.displacementBias = 0;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshPhongMaterial.prototype = Object.create( Material.prototype );\n\tMeshPhongMaterial.prototype.constructor = MeshPhongMaterial;\n\n\tMeshPhongMaterial.prototype.isMeshPhongMaterial = true;\n\n\tMeshPhongMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\t\tthis.specular.copy( source.specular );\n\t\tthis.shininess = source.shininess;\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.bumpMap = source.bumpMap;\n\t\tthis.bumpScale = source.bumpScale;\n\n\t\tthis.normalMap = source.normalMap;\n\t\tthis.normalScale.copy( source.normalScale );\n\n\t\tthis.displacementMap = source.displacementMap;\n\t\tthis.displacementScale = source.displacementScale;\n\t\tthis.displacementBias = source.displacementBias;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * parameters = {\n\t * opacity: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: \n\t * }\n\t */\n\n\tfunction MeshNormalMaterial( parameters ) {\n\n\t\tMaterial.call( this, parameters );\n\n\t\tthis.type = 'MeshNormalMaterial';\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\n\t\tthis.fog = false;\n\t\tthis.lights = false;\n\t\tthis.morphTargets = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshNormalMaterial.prototype = Object.create( Material.prototype );\n\tMeshNormalMaterial.prototype.constructor = MeshNormalMaterial;\n\n\tMeshNormalMaterial.prototype.isMeshNormalMaterial = true;\n\n\tMeshNormalMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * map: new THREE.Texture( ),\n\t *\n\t * lightMap: new THREE.Texture( ),\n\t * lightMapIntensity: \n\t *\n\t * aoMap: new THREE.Texture( ),\n\t * aoMapIntensity: \n\t *\n\t * emissive: ,\n\t * emissiveIntensity: \n\t * emissiveMap: new THREE.Texture( ),\n\t *\n\t * specularMap: new THREE.Texture( ),\n\t *\n\t * alphaMap: new THREE.Texture( ),\n\t *\n\t * envMap: new THREE.TextureCube( [posx, negx, posy, negy, posz, negz] ),\n\t * combine: THREE.Multiply,\n\t * reflectivity: ,\n\t * refractionRatio: ,\n\t *\n\t * wireframe: ,\n\t * wireframeLinewidth: ,\n\t *\n\t * skinning: ,\n\t * morphTargets: ,\n\t * morphNormals: \n\t * }\n\t */\n\n\tfunction MeshLambertMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'MeshLambertMaterial';\n\n\t\tthis.color = new Color( 0xffffff ); // diffuse\n\n\t\tthis.map = null;\n\n\t\tthis.lightMap = null;\n\t\tthis.lightMapIntensity = 1.0;\n\n\t\tthis.aoMap = null;\n\t\tthis.aoMapIntensity = 1.0;\n\n\t\tthis.emissive = new Color( 0x000000 );\n\t\tthis.emissiveIntensity = 1.0;\n\t\tthis.emissiveMap = null;\n\n\t\tthis.specularMap = null;\n\n\t\tthis.alphaMap = null;\n\n\t\tthis.envMap = null;\n\t\tthis.combine = MultiplyOperation;\n\t\tthis.reflectivity = 1;\n\t\tthis.refractionRatio = 0.98;\n\n\t\tthis.wireframe = false;\n\t\tthis.wireframeLinewidth = 1;\n\t\tthis.wireframeLinecap = 'round';\n\t\tthis.wireframeLinejoin = 'round';\n\n\t\tthis.skinning = false;\n\t\tthis.morphTargets = false;\n\t\tthis.morphNormals = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tMeshLambertMaterial.prototype = Object.create( Material.prototype );\n\tMeshLambertMaterial.prototype.constructor = MeshLambertMaterial;\n\n\tMeshLambertMaterial.prototype.isMeshLambertMaterial = true;\n\n\tMeshLambertMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.map = source.map;\n\n\t\tthis.lightMap = source.lightMap;\n\t\tthis.lightMapIntensity = source.lightMapIntensity;\n\n\t\tthis.aoMap = source.aoMap;\n\t\tthis.aoMapIntensity = source.aoMapIntensity;\n\n\t\tthis.emissive.copy( source.emissive );\n\t\tthis.emissiveMap = source.emissiveMap;\n\t\tthis.emissiveIntensity = source.emissiveIntensity;\n\n\t\tthis.specularMap = source.specularMap;\n\n\t\tthis.alphaMap = source.alphaMap;\n\n\t\tthis.envMap = source.envMap;\n\t\tthis.combine = source.combine;\n\t\tthis.reflectivity = source.reflectivity;\n\t\tthis.refractionRatio = source.refractionRatio;\n\n\t\tthis.wireframe = source.wireframe;\n\t\tthis.wireframeLinewidth = source.wireframeLinewidth;\n\t\tthis.wireframeLinecap = source.wireframeLinecap;\n\t\tthis.wireframeLinejoin = source.wireframeLinejoin;\n\n\t\tthis.skinning = source.skinning;\n\t\tthis.morphTargets = source.morphTargets;\n\t\tthis.morphNormals = source.morphNormals;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t * parameters = {\n\t * color: ,\n\t * opacity: ,\n\t *\n\t * linewidth: ,\n\t *\n\t * scale: ,\n\t * dashSize: ,\n\t * gapSize: \n\t * }\n\t */\n\n\tfunction LineDashedMaterial( parameters ) {\n\n\t\tMaterial.call( this );\n\n\t\tthis.type = 'LineDashedMaterial';\n\n\t\tthis.color = new Color( 0xffffff );\n\n\t\tthis.linewidth = 1;\n\n\t\tthis.scale = 1;\n\t\tthis.dashSize = 3;\n\t\tthis.gapSize = 1;\n\n\t\tthis.lights = false;\n\n\t\tthis.setValues( parameters );\n\n\t}\n\n\tLineDashedMaterial.prototype = Object.create( Material.prototype );\n\tLineDashedMaterial.prototype.constructor = LineDashedMaterial;\n\n\tLineDashedMaterial.prototype.isLineDashedMaterial = true;\n\n\tLineDashedMaterial.prototype.copy = function ( source ) {\n\n\t\tMaterial.prototype.copy.call( this, source );\n\n\t\tthis.color.copy( source.color );\n\n\t\tthis.linewidth = source.linewidth;\n\n\t\tthis.scale = source.scale;\n\t\tthis.dashSize = source.dashSize;\n\t\tthis.gapSize = source.gapSize;\n\n\t\treturn this;\n\n\t};\n\n\n\n\tvar Materials = Object.freeze({\n\t\tShadowMaterial: ShadowMaterial,\n\t\tSpriteMaterial: SpriteMaterial,\n\t\tRawShaderMaterial: RawShaderMaterial,\n\t\tShaderMaterial: ShaderMaterial,\n\t\tPointsMaterial: PointsMaterial,\n\t\tMultiMaterial: MultiMaterial,\n\t\tMeshPhysicalMaterial: MeshPhysicalMaterial,\n\t\tMeshStandardMaterial: MeshStandardMaterial,\n\t\tMeshPhongMaterial: MeshPhongMaterial,\n\t\tMeshNormalMaterial: MeshNormalMaterial,\n\t\tMeshLambertMaterial: MeshLambertMaterial,\n\t\tMeshDepthMaterial: MeshDepthMaterial,\n\t\tMeshBasicMaterial: MeshBasicMaterial,\n\t\tLineDashedMaterial: LineDashedMaterial,\n\t\tLineBasicMaterial: LineBasicMaterial,\n\t\tMaterial: Material\n\t});\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tvar Cache = {\n\n\t\tenabled: false,\n\n\t\tfiles: {},\n\n\t\tadd: function ( key, file ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Adding key:', key );\n\n\t\t\tthis.files[ key ] = file;\n\n\t\t},\n\n\t\tget: function ( key ) {\n\n\t\t\tif ( this.enabled === false ) return;\n\n\t\t\t// console.log( 'THREE.Cache', 'Checking key:', key );\n\n\t\t\treturn this.files[ key ];\n\n\t\t},\n\n\t\tremove: function ( key ) {\n\n\t\t\tdelete this.files[ key ];\n\n\t\t},\n\n\t\tclear: function () {\n\n\t\t\tthis.files = {};\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LoadingManager( onLoad, onProgress, onError ) {\n\n\t\tvar scope = this;\n\n\t\tvar isLoading = false, itemsLoaded = 0, itemsTotal = 0;\n\n\t\tthis.onStart = undefined;\n\t\tthis.onLoad = onLoad;\n\t\tthis.onProgress = onProgress;\n\t\tthis.onError = onError;\n\n\t\tthis.itemStart = function ( url ) {\n\n\t\t\titemsTotal ++;\n\n\t\t\tif ( isLoading === false ) {\n\n\t\t\t\tif ( scope.onStart !== undefined ) {\n\n\t\t\t\t\tscope.onStart( url, itemsLoaded, itemsTotal );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tisLoading = true;\n\n\t\t};\n\n\t\tthis.itemEnd = function ( url ) {\n\n\t\t\titemsLoaded ++;\n\n\t\t\tif ( scope.onProgress !== undefined ) {\n\n\t\t\t\tscope.onProgress( url, itemsLoaded, itemsTotal );\n\n\t\t\t}\n\n\t\t\tif ( itemsLoaded === itemsTotal ) {\n\n\t\t\t\tisLoading = false;\n\n\t\t\t\tif ( scope.onLoad !== undefined ) {\n\n\t\t\t\t\tscope.onLoad();\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.itemError = function ( url ) {\n\n\t\t\tif ( scope.onError !== undefined ) {\n\n\t\t\t\tscope.onError( url );\n\n\t\t\t}\n\n\t\t};\n\n\t}\n\n\tvar DefaultLoadingManager = new LoadingManager();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction XHRLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( XHRLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( url === undefined ) url = '';\n\n\t\t\tif ( this.path !== undefined ) url = this.path + url;\n\n\t\t\tvar scope = this;\n\n\t\t\tvar cached = Cache.get( url );\n\n\t\t\tif ( cached !== undefined ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\tsetTimeout( function () {\n\n\t\t\t\t\tif ( onLoad ) onLoad( cached );\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, 0 );\n\n\t\t\t\treturn cached;\n\n\t\t\t}\n\n\t\t\t// Check for data: URI\n\t\t\tvar dataUriRegex = /^data:(.*?)(;base64)?,(.*)$/;\n\t\t\tvar dataUriRegexResult = url.match( dataUriRegex );\n\n\t\t\t// Safari can not handle Data URIs through XMLHttpRequest so process manually\n\t\t\tif ( dataUriRegexResult ) {\n\n\t\t\t\tvar mimeType = dataUriRegexResult[1];\n\t\t\t\tvar isBase64 = !!dataUriRegexResult[2];\n\t\t\t\tvar data = dataUriRegexResult[3];\n\n\t\t\t\tdata = window.decodeURIComponent(data);\n\n\t\t\t\tif( isBase64 ) {\n\t\t\t\t\tdata = window.atob(data);\n\t\t\t\t}\n\n\t\t\t\ttry {\n\n\t\t\t\t\tvar response;\n\t\t\t\t\tvar responseType = ( this.responseType || '' ).toLowerCase();\n\n\t\t\t\t\tswitch ( responseType ) {\n\n\t\t\t\t\t\tcase 'arraybuffer':\n\t\t\t\t\t\tcase 'blob':\n\n\t\t\t\t\t\t \tresponse = new ArrayBuffer( data.length );\n\t\t\t\t\t\t\tvar view = new Uint8Array( response );\n\t\t\t\t\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\t\t\t\t\t\tview[ i ] = data.charCodeAt( i );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tif ( responseType === 'blob' ) {\n\n\t\t\t\t\t\t\t\tresponse = new Blob( [ response ], { \"type\" : mimeType } );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'document':\n\n\t\t\t\t\t\t\tvar parser = new DOMParser();\n\t\t\t\t\t\t\tresponse = parser.parseFromString( data, mimeType );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'json':\n\n\t\t\t\t\t\t\tresponse = JSON.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault: // 'text' or other\n\n\t\t\t\t\t\t\tresponse = data;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// Wait for next browser tick\n\t\t\t\t\twindow.setTimeout( function() {\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( response );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t}, 0);\n\n\t\t\t\t} catch ( error ) {\n\n\t\t\t\t\t// Wait for next browser tick\n\t\t\t\t\twindow.setTimeout( function() {\n\n\t\t\t\t\t\tif ( onError ) onError( error );\n\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}, 0);\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\tvar request = new XMLHttpRequest();\n\t\t\t\trequest.open( 'GET', url, true );\n\n\t\t\t\trequest.addEventListener( 'load', function ( event ) {\n\n\t\t\t\t\tvar response = event.target.response;\n\n\t\t\t\t\tCache.add( url, response );\n\n\t\t\t\t\tif ( this.status === 200 ) {\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( response );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t} else if ( this.status === 0 ) {\n\n\t\t\t\t\t\t// Some browsers return HTTP Status 0 when using non-http protocol\n\t\t\t\t\t\t// e.g. 'file://' or 'data://'. Handle as success.\n\n\t\t\t\t\t\tconsole.warn( 'THREE.XHRLoader: HTTP Status 0 received.' );\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( response );\n\n\t\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tif ( onError ) onError( event );\n\n\t\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, false );\n\n\t\t\t\tif ( onProgress !== undefined ) {\n\n\t\t\t\t\trequest.addEventListener( 'progress', function ( event ) {\n\n\t\t\t\t\t\tonProgress( event );\n\n\t\t\t\t\t}, false );\n\n\t\t\t\t}\n\n\t\t\t\trequest.addEventListener( 'error', function ( event ) {\n\n\t\t\t\t\tif ( onError ) onError( event );\n\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t}, false );\n\n\t\t\t\tif ( this.responseType !== undefined ) request.responseType = this.responseType;\n\t\t\t\tif ( this.withCredentials !== undefined ) request.withCredentials = this.withCredentials;\n\n\t\t\t\tif ( request.overrideMimeType ) request.overrideMimeType( 'text/plain' );\n\n\t\t\t\trequest.send( null );\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\treturn request;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetResponseType: function ( value ) {\n\n\t\t\tthis.responseType = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetWithCredentials: function ( value ) {\n\n\t\t\tthis.withCredentials = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t *\n\t * Abstract Base class to block based textures loader (dds, pvr, ...)\n\t */\n\n\tfunction CompressedTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( CompressedTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar images = [];\n\n\t\t\tvar texture = new CompressedTexture();\n\t\t\ttexture.image = images;\n\n\t\t\tvar loader = new XHRLoader( this.manager );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( url[ i ], function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\timages[ i ] = {\n\t\t\t\t\t\twidth: texDatas.width,\n\t\t\t\t\t\theight: texDatas.height,\n\t\t\t\t\t\tformat: texDatas.format,\n\t\t\t\t\t\tmipmaps: texDatas.mipmaps\n\t\t\t\t\t};\n\n\t\t\t\t\tloaded += 1;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\tif ( texDatas.mipmapCount === 1 )\n\t\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\tif ( Array.isArray( url ) ) {\n\n\t\t\t\tvar loaded = 0;\n\n\t\t\t\tfor ( var i = 0, il = url.length; i < il; ++ i ) {\n\n\t\t\t\t\tloadTexture( i );\n\n\t\t\t\t}\n\n\t\t\t} else {\n\n\t\t\t\t// compressed cubemap texture stored in a single DDS file\n\n\t\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\t\tvar texDatas = scope._parser( buffer, true );\n\n\t\t\t\t\tif ( texDatas.isCubemap ) {\n\n\t\t\t\t\t\tvar faces = texDatas.mipmaps.length / texDatas.mipmapCount;\n\n\t\t\t\t\t\tfor ( var f = 0; f < faces; f ++ ) {\n\n\t\t\t\t\t\t\timages[ f ] = { mipmaps : [] };\n\n\t\t\t\t\t\t\tfor ( var i = 0; i < texDatas.mipmapCount; i ++ ) {\n\n\t\t\t\t\t\t\t\timages[ f ].mipmaps.push( texDatas.mipmaps[ f * texDatas.mipmapCount + i ] );\n\t\t\t\t\t\t\t\timages[ f ].format = texDatas.format;\n\t\t\t\t\t\t\t\timages[ f ].width = texDatas.width;\n\t\t\t\t\t\t\t\timages[ f ].height = texDatas.height;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttexture.image.width = texDatas.width;\n\t\t\t\t\t\ttexture.image.height = texDatas.height;\n\t\t\t\t\t\ttexture.mipmaps = texDatas.mipmaps;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( texDatas.mipmapCount === 1 ) {\n\n\t\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttexture.format = texDatas.format;\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author Nikos M. / https://github.com/foo123/\n\t *\n\t * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)\n\t */\n\n\tvar DataTextureLoader = BinaryTextureLoader;\n\tfunction BinaryTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\t// override in sub classes\n\t\tthis._parser = null;\n\n\t}\n\n\tObject.assign( BinaryTextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texture = new DataTexture();\n\n\t\t\tvar loader = new XHRLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\tvar texData = scope._parser( buffer );\n\n\t\t\t\tif ( ! texData ) return;\n\n\t\t\t\tif ( undefined !== texData.image ) {\n\n\t\t\t\t\ttexture.image = texData.image;\n\n\t\t\t\t} else if ( undefined !== texData.data ) {\n\n\t\t\t\t\ttexture.image.width = texData.width;\n\t\t\t\t\ttexture.image.height = texData.height;\n\t\t\t\t\ttexture.image.data = texData.data;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.wrapS = undefined !== texData.wrapS ? texData.wrapS : ClampToEdgeWrapping;\n\t\t\t\ttexture.wrapT = undefined !== texData.wrapT ? texData.wrapT : ClampToEdgeWrapping;\n\n\t\t\t\ttexture.magFilter = undefined !== texData.magFilter ? texData.magFilter : LinearFilter;\n\t\t\t\ttexture.minFilter = undefined !== texData.minFilter ? texData.minFilter : LinearMipMapLinearFilter;\n\n\t\t\t\ttexture.anisotropy = undefined !== texData.anisotropy ? texData.anisotropy : 1;\n\n\t\t\t\tif ( undefined !== texData.format ) {\n\n\t\t\t\t\ttexture.format = texData.format;\n\n\t\t\t\t}\n\t\t\t\tif ( undefined !== texData.type ) {\n\n\t\t\t\t\ttexture.type = texData.type;\n\n\t\t\t\t}\n\n\t\t\t\tif ( undefined !== texData.mipmaps ) {\n\n\t\t\t\t\ttexture.mipmaps = texData.mipmaps;\n\n\t\t\t\t}\n\n\t\t\t\tif ( 1 === texData.mipmapCount ) {\n\n\t\t\t\t\ttexture.minFilter = LinearFilter;\n\n\t\t\t\t}\n\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad ) onLoad( texture, texData );\n\n\t\t\t}, onProgress, onError );\n\n\n\t\t\treturn texture;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ImageLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( ImageLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar image = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'img' );\n\t\t\timage.onload = function () {\n\n\t\t\t\timage.onload = null;\n\n\t\t\t\tURL.revokeObjectURL( image.src );\n\n\t\t\t\tif ( onLoad ) onLoad( image );\n\n\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t};\n\t\t\timage.onerror = onError;\n\n\t\t\tif ( url.indexOf( 'data:' ) === 0 ) {\n\n\t\t\t\timage.src = url;\n\n\t\t\t} else {\n\n\t\t\t\tvar loader = new XHRLoader();\n\t\t\t\tloader.setPath( this.path );\n\t\t\t\tloader.setResponseType( 'blob' );\n\t\t\t\tloader.setWithCredentials( this.withCredentials );\n\t\t\t\tloader.load( url, function ( blob ) {\n\n\t\t\t\t\timage.src = URL.createObjectURL( blob );\n\n\t\t\t\t}, onProgress, onError );\n\n\t\t\t}\n\n\t\t\tscope.manager.itemStart( url );\n\n\t\t\treturn image;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetWithCredentials: function ( value ) {\n\n\t\t\tthis.withCredentials = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction CubeTextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( CubeTextureLoader.prototype, {\n\n\t\tload: function ( urls, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new CubeTexture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setPath( this.path );\n\n\t\t\tvar loaded = 0;\n\n\t\t\tfunction loadTexture( i ) {\n\n\t\t\t\tloader.load( urls[ i ], function ( image ) {\n\n\t\t\t\t\ttexture.images[ i ] = image;\n\n\t\t\t\t\tloaded ++;\n\n\t\t\t\t\tif ( loaded === 6 ) {\n\n\t\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\t\tif ( onLoad ) onLoad( texture );\n\n\t\t\t\t\t}\n\n\t\t\t\t}, undefined, onError );\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < urls.length; ++ i ) {\n\n\t\t\t\tloadTexture( i );\n\n\t\t\t}\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction TextureLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( TextureLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar texture = new Texture();\n\n\t\t\tvar loader = new ImageLoader( this.manager );\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\t\t\tloader.setWithCredentials( this.withCredentials );\n\t\t\tloader.setPath( this.path );\n\t\t\tloader.load( url, function ( image ) {\n\n\t\t\t\t// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.\n\t\t\t\tvar isJPEG = url.search( /\\.(jpg|jpeg)$/ ) > 0 || url.search( /^data\\:image\\/jpeg/ ) === 0;\n\n\t\t\t\ttexture.format = isJPEG ? RGBFormat : RGBAFormat;\n\t\t\t\ttexture.image = image;\n\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\tif ( onLoad !== undefined ) {\n\n\t\t\t\t\tonLoad( texture );\n\n\t\t\t\t}\n\n\t\t\t}, onProgress, onError );\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetWithCredentials: function ( value ) {\n\n\t\t\tthis.withCredentials = value;\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetPath: function ( value ) {\n\n\t\t\tthis.path = value;\n\t\t\treturn this;\n\n\t\t}\n\n\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Light( color, intensity ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Light';\n\n\t\tthis.color = new Color( color );\n\t\tthis.intensity = intensity !== undefined ? intensity : 1;\n\n\t\tthis.receiveShadow = undefined;\n\n\t}\n\n\tLight.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Light,\n\n\t\tisLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tObject3D.prototype.copy.call( this, source );\n\n\t\t\tthis.color.copy( source.color );\n\t\t\tthis.intensity = source.intensity;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\ttoJSON: function ( meta ) {\n\n\t\t\tvar data = Object3D.prototype.toJSON.call( this, meta );\n\n\t\t\tdata.object.color = this.color.getHex();\n\t\t\tdata.object.intensity = this.intensity;\n\n\t\t\tif ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();\n\n\t\t\tif ( this.distance !== undefined ) data.object.distance = this.distance;\n\t\t\tif ( this.angle !== undefined ) data.object.angle = this.angle;\n\t\t\tif ( this.decay !== undefined ) data.object.decay = this.decay;\n\t\t\tif ( this.penumbra !== undefined ) data.object.penumbra = this.penumbra;\n\n\t\t\tif ( this.shadow !== undefined ) data.object.shadow = this.shadow.toJSON();\n\n\t\t\treturn data;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction HemisphereLight( skyColor, groundColor, intensity ) {\n\n\t\tLight.call( this, skyColor, intensity );\n\n\t\tthis.type = 'HemisphereLight';\n\n\t\tthis.castShadow = undefined;\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.groundColor = new Color( groundColor );\n\n\t}\n\n\tHemisphereLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: HemisphereLight,\n\n\t\tisHemisphereLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.groundColor.copy( source.groundColor );\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction LightShadow( camera ) {\n\n\t\tthis.camera = camera;\n\n\t\tthis.bias = 0;\n\t\tthis.radius = 1;\n\n\t\tthis.mapSize = new Vector2( 512, 512 );\n\n\t\tthis.map = null;\n\t\tthis.matrix = new Matrix4();\n\n\t}\n\n\tObject.assign( LightShadow.prototype, {\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.camera = source.camera.clone();\n\n\t\t\tthis.bias = source.bias;\n\t\t\tthis.radius = source.radius;\n\n\t\t\tthis.mapSize.copy( source.mapSize );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\ttoJSON: function () {\n\n\t\t\tvar object = {};\n\n\t\t\tif ( this.bias !== 0 ) object.bias = this.bias;\n\t\t\tif ( this.radius !== 1 ) object.radius = this.radius;\n\t\t\tif ( this.mapSize.x !== 512 || this.mapSize.y !== 512 ) object.mapSize = this.mapSize.toArray();\n\n\t\t\tobject.camera = this.camera.toJSON( false ).object;\n\t\t\tdelete object.camera.matrix;\n\n\t\t\treturn object;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction SpotLightShadow() {\n\n\t\tLightShadow.call( this, new PerspectiveCamera( 50, 1, 0.5, 500 ) );\n\n\t}\n\n\tSpotLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: SpotLightShadow,\n\n\t\tisSpotLightShadow: true,\n\n\t\tupdate: function ( light ) {\n\n\t\t\tvar fov = _Math.RAD2DEG * 2 * light.angle;\n\t\t\tvar aspect = this.mapSize.width / this.mapSize.height;\n\t\t\tvar far = light.distance || 500;\n\n\t\t\tvar camera = this.camera;\n\n\t\t\tif ( fov !== camera.fov || aspect !== camera.aspect || far !== camera.far ) {\n\n\t\t\t\tcamera.fov = fov;\n\t\t\t\tcamera.aspect = aspect;\n\t\t\t\tcamera.far = far;\n\t\t\t\tcamera.updateProjectionMatrix();\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction SpotLight( color, intensity, distance, angle, penumbra, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'SpotLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf\n\t\t\t\treturn this.intensity * Math.PI;\n\t\t\t},\n\t\t\tset: function ( power ) {\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (17) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf\n\t\t\t\tthis.intensity = power / Math.PI;\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.angle = ( angle !== undefined ) ? angle : Math.PI / 3;\n\t\tthis.penumbra = ( penumbra !== undefined ) ? penumbra : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new SpotLightShadow();\n\n\t}\n\n\tSpotLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: SpotLight,\n\n\t\tisSpotLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.angle = source.angle;\n\t\t\tthis.penumbra = source.penumbra;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\n\tfunction PointLight( color, intensity, distance, decay ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'PointLight';\n\n\t\tObject.defineProperty( this, 'power', {\n\t\t\tget: function () {\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf\n\t\t\t\treturn this.intensity * 4 * Math.PI;\n\n\t\t\t},\n\t\t\tset: function ( power ) {\n\t\t\t\t// intensity = power per solid angle.\n\t\t\t\t// ref: equation (15) from http://www.frostbite.com/wp-content/uploads/2014/11/course_notes_moving_frostbite_to_pbr.pdf\n\t\t\t\tthis.intensity = power / ( 4 * Math.PI );\n\t\t\t}\n\t\t} );\n\n\t\tthis.distance = ( distance !== undefined ) ? distance : 0;\n\t\tthis.decay = ( decay !== undefined ) ? decay : 1;\t// for physically correct lights, should be 2.\n\n\t\tthis.shadow = new LightShadow( new PerspectiveCamera( 90, 1, 0.5, 500 ) );\n\n\t}\n\n\tPointLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: PointLight,\n\n\t\tisPointLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.distance = source.distance;\n\t\t\tthis.decay = source.decay;\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction DirectionalLightShadow( light ) {\n\n\t\tLightShadow.call( this, new OrthographicCamera( - 5, 5, 5, - 5, 0.5, 500 ) );\n\n\t}\n\n\tDirectionalLightShadow.prototype = Object.assign( Object.create( LightShadow.prototype ), {\n\n\t\tconstructor: DirectionalLightShadow\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction DirectionalLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'DirectionalLight';\n\n\t\tthis.position.copy( Object3D.DefaultUp );\n\t\tthis.updateMatrix();\n\n\t\tthis.target = new Object3D();\n\n\t\tthis.shadow = new DirectionalLightShadow();\n\n\t}\n\n\tDirectionalLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: DirectionalLight,\n\n\t\tisDirectionalLight: true,\n\n\t\tcopy: function ( source ) {\n\n\t\t\tLight.prototype.copy.call( this, source );\n\n\t\t\tthis.target = source.target.clone();\n\n\t\t\tthis.shadow = source.shadow.clone();\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AmbientLight( color, intensity ) {\n\n\t\tLight.call( this, color, intensity );\n\n\t\tthis.type = 'AmbientLight';\n\n\t\tthis.castShadow = undefined;\n\n\t}\n\n\tAmbientLight.prototype = Object.assign( Object.create( Light.prototype ), {\n\n\t\tconstructor: AmbientLight,\n\n\t\tisAmbientLight: true,\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tvar AnimationUtils = {\n\n\t\t// same as Array.prototype.slice, but also works on typed arrays\n\t\tarraySlice: function( array, from, to ) {\n\n\t\t\tif ( AnimationUtils.isTypedArray( array ) ) {\n\n\t\t\t\treturn new array.constructor( array.subarray( from, to ) );\n\n\t\t\t}\n\n\t\t\treturn array.slice( from, to );\n\n\t\t},\n\n\t\t// converts an array to a specific type\n\t\tconvertArray: function( array, type, forceClone ) {\n\n\t\t\tif ( ! array || // let 'undefined' and 'null' pass\n\t\t\t\t\t! forceClone && array.constructor === type ) return array;\n\n\t\t\tif ( typeof type.BYTES_PER_ELEMENT === 'number' ) {\n\n\t\t\t\treturn new type( array ); // create typed array\n\n\t\t\t}\n\n\t\t\treturn Array.prototype.slice.call( array ); // create Array\n\n\t\t},\n\n\t\tisTypedArray: function( object ) {\n\n\t\t\treturn ArrayBuffer.isView( object ) &&\n\t\t\t\t\t! ( object instanceof DataView );\n\n\t\t},\n\n\t\t// returns an array by which times and values can be sorted\n\t\tgetKeyframeOrder: function( times ) {\n\n\t\t\tfunction compareTime( i, j ) {\n\n\t\t\t\treturn times[ i ] - times[ j ];\n\n\t\t\t}\n\n\t\t\tvar n = times.length;\n\t\t\tvar result = new Array( n );\n\t\t\tfor ( var i = 0; i !== n; ++ i ) result[ i ] = i;\n\n\t\t\tresult.sort( compareTime );\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// uses the array previously returned by 'getKeyframeOrder' to sort data\n\t\tsortedArray: function( values, stride, order ) {\n\n\t\t\tvar nValues = values.length;\n\t\t\tvar result = new values.constructor( nValues );\n\n\t\t\tfor ( var i = 0, dstOffset = 0; dstOffset !== nValues; ++ i ) {\n\n\t\t\t\tvar srcOffset = order[ i ] * stride;\n\n\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\tresult[ dstOffset ++ ] = values[ srcOffset + j ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// function for parsing AOS keyframe formats\n\t\tflattenJSON: function( jsonKeys, times, values, valuePropertyName ) {\n\n\t\t\tvar i = 1, key = jsonKeys[ 0 ];\n\n\t\t\twhile ( key !== undefined && key[ valuePropertyName ] === undefined ) {\n\n\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t}\n\n\t\t\tif ( key === undefined ) return; // no data\n\n\t\t\tvar value = key[ valuePropertyName ];\n\t\t\tif ( value === undefined ) return; // no data\n\n\t\t\tif ( Array.isArray( value ) ) {\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push.apply( values, value ); // push all elements\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else if ( value.toArray !== undefined ) {\n\t\t\t\t// ...assume THREE.Math-ish\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalue.toArray( values, values.length );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t} else {\n\t\t\t\t// otherwise push as-is\n\n\t\t\t\tdo {\n\n\t\t\t\t\tvalue = key[ valuePropertyName ];\n\n\t\t\t\t\tif ( value !== undefined ) {\n\n\t\t\t\t\t\ttimes.push( key.time );\n\t\t\t\t\t\tvalues.push( value );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tkey = jsonKeys[ i ++ ];\n\n\t\t\t\t} while ( key !== undefined );\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t * Abstract base class of interpolants over parametric samples.\n\t *\n\t * The parameter domain is one dimensional, typically the time or a path\n\t * along a curve defined by the data.\n\t *\n\t * The sample values can have any dimensionality and derived classes may\n\t * apply special interpretations to the data.\n\t *\n\t * This class provides the interval seek in a Template Method, deferring\n\t * the actual interpolation to derived classes.\n\t *\n\t * Time complexity is O(1) for linear access crossing at most two points\n\t * and O(log N) for random access, where N is the number of positions.\n\t *\n\t * References:\n\t *\n\t * \t\thttp://www.oodesign.com/template-method-pattern.html\n\t *\n\t * @author tschw\n\t */\n\n\tfunction Interpolant(\n\t\t\tparameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tthis.parameterPositions = parameterPositions;\n\t\tthis._cachedIndex = 0;\n\n\t\tthis.resultBuffer = resultBuffer !== undefined ?\n\t\t\t\tresultBuffer : new sampleValues.constructor( sampleSize );\n\t\tthis.sampleValues = sampleValues;\n\t\tthis.valueSize = sampleSize;\n\n\t}\n\n\tInterpolant.prototype = {\n\n\t\tconstructor: Interpolant,\n\n\t\tevaluate: function( t ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\ti1 = this._cachedIndex,\n\n\t\t\t\tt1 = pp[ i1 ],\n\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\tvalidate_interval: {\n\n\t\t\t\tseek: {\n\n\t\t\t\t\tvar right;\n\n\t\t\t\t\tlinear_scan: {\n\t//- See http://jsperf.com/comparison-to-undefined/3\n\t//- slower code:\n\t//-\n\t//- \t\t\t\tif ( t >= t1 || t1 === undefined ) {\n\t\t\t\t\t\tforward_scan: if ( ! ( t < t1 ) ) {\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 + 2; ;) {\n\n\t\t\t\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\t\t\t\tif ( t < t0 ) break forward_scan;\n\n\t\t\t\t\t\t\t\t\t// after end\n\n\t\t\t\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t, t0 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt0 = t1;\n\t\t\t\t\t\t\t\tt1 = pp[ ++ i1 ];\n\n\t\t\t\t\t\t\t\tif ( t < t1 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the right side of the index\n\t\t\t\t\t\t\tright = pp.length;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t//- slower code:\n\t//-\t\t\t\t\tif ( t < t0 || t0 === undefined ) {\n\t\t\t\t\t\tif ( ! ( t >= t0 ) ) {\n\n\t\t\t\t\t\t\t// looping?\n\n\t\t\t\t\t\t\tvar t1global = pp[ 1 ];\n\n\t\t\t\t\t\t\tif ( t < t1global ) {\n\n\t\t\t\t\t\t\t\ti1 = 2; // + 1, using the scan for the details\n\t\t\t\t\t\t\t\tt0 = t1global;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// linear reverse scan\n\n\t\t\t\t\t\t\tfor ( var giveUpAt = i1 - 2; ;) {\n\n\t\t\t\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\t\t\t\t// before start\n\n\t\t\t\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tif ( i1 === giveUpAt ) break; // this loop\n\n\t\t\t\t\t\t\t\tt1 = t0;\n\t\t\t\t\t\t\t\tt0 = pp[ -- i1 - 1 ];\n\n\t\t\t\t\t\t\t\tif ( t >= t0 ) {\n\n\t\t\t\t\t\t\t\t\t// we have arrived at the sought interval\n\t\t\t\t\t\t\t\t\tbreak seek;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t// prepare binary search on the left side of the index\n\t\t\t\t\t\t\tright = i1;\n\t\t\t\t\t\t\ti1 = 0;\n\t\t\t\t\t\t\tbreak linear_scan;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// the interval is valid\n\n\t\t\t\t\t\tbreak validate_interval;\n\n\t\t\t\t\t} // linear scan\n\n\t\t\t\t\t// binary search\n\n\t\t\t\t\twhile ( i1 < right ) {\n\n\t\t\t\t\t\tvar mid = ( i1 + right ) >>> 1;\n\n\t\t\t\t\t\tif ( t < pp[ mid ] ) {\n\n\t\t\t\t\t\t\tright = mid;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\ti1 = mid + 1;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\tt1 = pp[ i1 ];\n\t\t\t\t\tt0 = pp[ i1 - 1 ];\n\n\t\t\t\t\t// check boundary cases, again\n\n\t\t\t\t\tif ( t0 === undefined ) {\n\n\t\t\t\t\t\tthis._cachedIndex = 0;\n\t\t\t\t\t\treturn this.beforeStart_( 0, t, t1 );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( t1 === undefined ) {\n\n\t\t\t\t\t\ti1 = pp.length;\n\t\t\t\t\t\tthis._cachedIndex = i1;\n\t\t\t\t\t\treturn this.afterEnd_( i1 - 1, t0, t );\n\n\t\t\t\t\t}\n\n\t\t\t\t} // seek\n\n\t\t\t\tthis._cachedIndex = i1;\n\n\t\t\t\tthis.intervalChanged_( i1, t0, t1 );\n\n\t\t\t} // validate_interval\n\n\t\t\treturn this.interpolate_( i1, t0, t, t1 );\n\n\t\t},\n\n\t\tsettings: null, // optional, subclass-specific settings structure\n\t\t// Note: The indirection allows central control of many interpolants.\n\n\t\t// --- Protected interface\n\n\t\tDefaultSettings_: {},\n\n\t\tgetSettings_: function() {\n\n\t\t\treturn this.settings || this.DefaultSettings_;\n\n\t\t},\n\n\t\tcopySampleValue_: function( index ) {\n\n\t\t\t// copies a sample value to the result buffer\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = index * stride;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] = values[ offset + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t},\n\n\t\t// Template methods for derived classes:\n\n\t\tinterpolate_: function( i1, t0, t, t1 ) {\n\n\t\t\tthrow new Error( \"call to abstract method\" );\n\t\t\t// implementations shall return this.resultBuffer\n\n\t\t},\n\n\t\tintervalChanged_: function( i1, t0, t1 ) {\n\n\t\t\t// empty\n\n\t\t}\n\n\t};\n\n\tObject.assign( Interpolant.prototype, {\n\n\t\tbeforeStart_: //( 0, t, t0 ), returns this.resultBuffer\n\t\t\tInterpolant.prototype.copySampleValue_,\n\n\t\tafterEnd_: //( N-1, tN-1, t ), returns this.resultBuffer\n\t\t\tInterpolant.prototype.copySampleValue_\n\n\t} );\n\n\t/**\n\t * Fast and simple cubic spline interpolant.\n\t *\n\t * It was derived from a Hermitian construction setting the first derivative\n\t * at each sample position to the linear slope between neighboring positions\n\t * over their parameter interval.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction CubicInterpolant(\n\t\t\tparameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call(\n\t\t\t\tthis, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t\tthis._weightPrev = -0;\n\t\tthis._offsetPrev = -0;\n\t\tthis._weightNext = -0;\n\t\tthis._offsetNext = -0;\n\n\t}\n\n\tCubicInterpolant.prototype =\n\t\t\tObject.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: CubicInterpolant,\n\n\t\tDefaultSettings_: {\n\n\t\t\tendingStart: \tZeroCurvatureEnding,\n\t\t\tendingEnd:\t\tZeroCurvatureEnding\n\n\t\t},\n\n\t\tintervalChanged_: function( i1, t0, t1 ) {\n\n\t\t\tvar pp = this.parameterPositions,\n\t\t\t\tiPrev = i1 - 2,\n\t\t\t\tiNext = i1 + 1,\n\n\t\t\t\ttPrev = pp[ iPrev ],\n\t\t\t\ttNext = pp[ iNext ];\n\n\t\t\tif ( tPrev === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingStart ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(t0) = 0\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = 2 * t0 - t1;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiPrev = pp.length - 2;\n\t\t\t\t\t\ttPrev = t0 + pp[ iPrev ] - pp[ iPrev + 1 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(t0) = 0 a.k.a. Natural Spline\n\t\t\t\t\t\tiPrev = i1;\n\t\t\t\t\t\ttPrev = t1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tNext === undefined ) {\n\n\t\t\t\tswitch ( this.getSettings_().endingEnd ) {\n\n\t\t\t\t\tcase ZeroSlopeEnding:\n\n\t\t\t\t\t\t// f'(tN) = 0\n\t\t\t\t\t\tiNext = i1;\n\t\t\t\t\t\ttNext = 2 * t1 - t0;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase WrapAroundEnding:\n\n\t\t\t\t\t\t// use the other end of the curve\n\t\t\t\t\t\tiNext = 1;\n\t\t\t\t\t\ttNext = t1 + pp[ 1 ] - pp[ 0 ];\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault: // ZeroCurvatureEnding\n\n\t\t\t\t\t\t// f''(tN) = 0, a.k.a. Natural Spline\n\t\t\t\t\t\tiNext = i1 - 1;\n\t\t\t\t\t\ttNext = t0;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar halfDt = ( t1 - t0 ) * 0.5,\n\t\t\t\tstride = this.valueSize;\n\n\t\t\tthis._weightPrev = halfDt / ( t0 - tPrev );\n\t\t\tthis._weightNext = halfDt / ( tNext - t1 );\n\t\t\tthis._offsetPrev = iPrev * stride;\n\t\t\tthis._offsetNext = iNext * stride;\n\n\t\t},\n\n\t\tinterpolate_: function( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\to1 = i1 * stride,\t\to0 = o1 - stride,\n\t\t\t\toP = this._offsetPrev, \toN = this._offsetNext,\n\t\t\t\twP = this._weightPrev,\twN = this._weightNext,\n\n\t\t\t\tp = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tpp = p * p,\n\t\t\t\tppp = pp * p;\n\n\t\t\t// evaluate polynomials\n\n\t\t\tvar sP = - wP * ppp + 2 * wP * pp - wP * p;\n\t\t\tvar s0 = ( 1 + wP ) * ppp + (-1.5 - 2 * wP ) * pp + ( -0.5 + wP ) * p + 1;\n\t\t\tvar s1 = (-1 - wN ) * ppp + ( 1.5 + wN ) * pp + 0.5 * p;\n\t\t\tvar sN = wN * ppp - wN * pp;\n\n\t\t\t// combine data linearly\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tsP * values[ oP + i ] +\n\t\t\t\t\t\ts0 * values[ o0 + i ] +\n\t\t\t\t\t\ts1 * values[ o1 + i ] +\n\t\t\t\t\t\tsN * values[ oN + i ];\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author tschw\n\t */\n\n\tfunction LinearInterpolant(\n\t\t\tparameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call(\n\t\t\t\tthis, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tLinearInterpolant.prototype =\n\t\t\tObject.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: LinearInterpolant,\n\n\t\tinterpolate_: function( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset1 = i1 * stride,\n\t\t\t\toffset0 = offset1 - stride,\n\n\t\t\t\tweight1 = ( t - t0 ) / ( t1 - t0 ),\n\t\t\t\tweight0 = 1 - weight1;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tresult[ i ] =\n\t\t\t\t\t\tvalues[ offset0 + i ] * weight0 +\n\t\t\t\t\t\tvalues[ offset1 + i ] * weight1;\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Interpolant that evaluates to the sample value at the position preceeding\n\t * the parameter.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction DiscreteInterpolant(\n\t\t\tparameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call(\n\t\t\t\tthis, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tDiscreteInterpolant.prototype =\n\t\t\tObject.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: DiscreteInterpolant,\n\n\t\tinterpolate_: function( i1, t0, t, t1 ) {\n\n\t\t\treturn this.copySampleValue_( i1 - 1 );\n\n\t\t}\n\n\t} );\n\n\tvar KeyframeTrackPrototype;\n\n\tKeyframeTrackPrototype = {\n\n\t\tTimeBufferType: Float32Array,\n\t\tValueBufferType: Float32Array,\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodDiscrete: function( result ) {\n\n\t\t\treturn new DiscreteInterpolant(\n\t\t\t\t\tthis.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodLinear: function( result ) {\n\n\t\t\treturn new LinearInterpolant(\n\t\t\t\t\tthis.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: function( result ) {\n\n\t\t\treturn new CubicInterpolant(\n\t\t\t\t\tthis.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tsetInterpolation: function( interpolation ) {\n\n\t\t\tvar factoryMethod;\n\n\t\t\tswitch ( interpolation ) {\n\n\t\t\t\tcase InterpolateDiscrete:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodDiscrete;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateLinear:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodLinear;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase InterpolateSmooth:\n\n\t\t\t\t\tfactoryMethod = this.InterpolantFactoryMethodSmooth;\n\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t\tif ( factoryMethod === undefined ) {\n\n\t\t\t\tvar message = \"unsupported interpolation for \" +\n\t\t\t\t\t\tthis.ValueTypeName + \" keyframe track named \" + this.name;\n\n\t\t\t\tif ( this.createInterpolant === undefined ) {\n\n\t\t\t\t\t// fall back to default, unless the default itself is messed up\n\t\t\t\t\tif ( interpolation !== this.DefaultInterpolation ) {\n\n\t\t\t\t\t\tthis.setInterpolation( this.DefaultInterpolation );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tthrow new Error( message ); // fatal, in this case\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tconsole.warn( message );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.createInterpolant = factoryMethod;\n\n\t\t},\n\n\t\tgetInterpolation: function() {\n\n\t\t\tswitch ( this.createInterpolant ) {\n\n\t\t\t\tcase this.InterpolantFactoryMethodDiscrete:\n\n\t\t\t\t\treturn InterpolateDiscrete;\n\n\t\t\t\tcase this.InterpolantFactoryMethodLinear:\n\n\t\t\t\t\treturn InterpolateLinear;\n\n\t\t\t\tcase this.InterpolantFactoryMethodSmooth:\n\n\t\t\t\t\treturn InterpolateSmooth;\n\n\t\t\t}\n\n\t\t},\n\n\t\tgetValueSize: function() {\n\n\t\t\treturn this.values.length / this.times.length;\n\n\t\t},\n\n\t\t// move all keyframes either forwards or backwards in time\n\t\tshift: function( timeOffset ) {\n\n\t\t\tif( timeOffset !== 0.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] += timeOffset;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// scale all keyframe times by a factor (useful for frame <-> seconds conversions)\n\t\tscale: function( timeScale ) {\n\n\t\t\tif( timeScale !== 1.0 ) {\n\n\t\t\t\tvar times = this.times;\n\n\t\t\t\tfor( var i = 0, n = times.length; i !== n; ++ i ) {\n\n\t\t\t\t\ttimes[ i ] *= timeScale;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// removes keyframes before and after animation without changing any values within the range [startTime, endTime].\n\t\t// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values\n\t\ttrim: function( startTime, endTime ) {\n\n\t\t\tvar times = this.times,\n\t\t\t\tnKeys = times.length,\n\t\t\t\tfrom = 0,\n\t\t\t\tto = nKeys - 1;\n\n\t\t\twhile ( from !== nKeys && times[ from ] < startTime ) ++ from;\n\t\t\twhile ( to !== -1 && times[ to ] > endTime ) -- to;\n\n\t\t\t++ to; // inclusive -> exclusive bound\n\n\t\t\tif( from !== 0 || to !== nKeys ) {\n\n\t\t\t\t// empty tracks are forbidden, so keep at least one keyframe\n\t\t\t\tif ( from >= to ) to = Math.max( to , 1 ), from = to - 1;\n\n\t\t\t\tvar stride = this.getValueSize();\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, from, to );\n\t\t\t\tthis.values = AnimationUtils.\n\t\t\t\t\t\tarraySlice( this.values, from * stride, to * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable\n\t\tvalidate: function() {\n\n\t\t\tvar valid = true;\n\n\t\t\tvar valueSize = this.getValueSize();\n\t\t\tif ( valueSize - Math.floor( valueSize ) !== 0 ) {\n\n\t\t\t\tconsole.error( \"invalid value size in track\", this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\n\t\t\t\tnKeys = times.length;\n\n\t\t\tif( nKeys === 0 ) {\n\n\t\t\t\tconsole.error( \"track is empty\", this );\n\t\t\t\tvalid = false;\n\n\t\t\t}\n\n\t\t\tvar prevTime = null;\n\n\t\t\tfor( var i = 0; i !== nKeys; i ++ ) {\n\n\t\t\t\tvar currTime = times[ i ];\n\n\t\t\t\tif ( typeof currTime === 'number' && isNaN( currTime ) ) {\n\n\t\t\t\t\tconsole.error( \"time is not a valid number\", this, i, currTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tif( prevTime !== null && prevTime > currTime ) {\n\n\t\t\t\t\tconsole.error( \"out of order keys\", this, i, currTime, prevTime );\n\t\t\t\t\tvalid = false;\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t\tprevTime = currTime;\n\n\t\t\t}\n\n\t\t\tif ( values !== undefined ) {\n\n\t\t\t\tif ( AnimationUtils.isTypedArray( values ) ) {\n\n\t\t\t\t\tfor ( var i = 0, n = values.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tvar value = values[ i ];\n\n\t\t\t\t\t\tif ( isNaN( value ) ) {\n\n\t\t\t\t\t\t\tconsole.error( \"value is not a valid number\", this, i, value );\n\t\t\t\t\t\t\tvalid = false;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn valid;\n\n\t\t},\n\n\t\t// removes equivalent sequential keys as common in morph target sequences\n\t\t// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)\n\t\toptimize: function() {\n\n\t\t\tvar times = this.times,\n\t\t\t\tvalues = this.values,\n\t\t\t\tstride = this.getValueSize(),\n\n\t\t\t\tsmoothInterpolation = this.getInterpolation() === InterpolateSmooth,\n\n\t\t\t\twriteIndex = 1,\n\t\t\t\tlastIndex = times.length - 1;\n\n\t\t\tfor( var i = 1; i < lastIndex; ++ i ) {\n\n\t\t\t\tvar keep = false;\n\n\t\t\t\tvar time = times[ i ];\n\t\t\t\tvar timeNext = times[ i + 1 ];\n\n\t\t\t\t// remove adjacent keyframes scheduled at the same time\n\n\t\t\t\tif ( time !== timeNext && ( i !== 1 || time !== time[ 0 ] ) ) {\n\n\t\t\t\t\tif ( ! smoothInterpolation ) {\n\n\t\t\t\t\t\t// remove unnecessary keyframes same as their neighbors\n\n\t\t\t\t\t\tvar offset = i * stride,\n\t\t\t\t\t\t\toffsetP = offset - stride,\n\t\t\t\t\t\t\toffsetN = offset + stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j ) {\n\n\t\t\t\t\t\t\tvar value = values[ offset + j ];\n\n\t\t\t\t\t\t\tif ( value !== values[ offsetP + j ] ||\n\t\t\t\t\t\t\t\t\tvalue !== values[ offsetN + j ] ) {\n\n\t\t\t\t\t\t\t\tkeep = true;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else keep = true;\n\n\t\t\t\t}\n\n\t\t\t\t// in-place compaction\n\n\t\t\t\tif ( keep ) {\n\n\t\t\t\t\tif ( i !== writeIndex ) {\n\n\t\t\t\t\t\ttimes[ writeIndex ] = times[ i ];\n\n\t\t\t\t\t\tvar readOffset = i * stride,\n\t\t\t\t\t\t\twriteOffset = writeIndex * stride;\n\n\t\t\t\t\t\tfor ( var j = 0; j !== stride; ++ j )\n\n\t\t\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\t++ writeIndex;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// flush last keyframe (compaction looks ahead)\n\n\t\t\tif ( lastIndex > 0 ) {\n\n\t\t\t\ttimes[ writeIndex ] = times[ lastIndex ];\n\n\t\t\t\tfor ( var readOffset = lastIndex * stride, writeOffset = writeIndex * stride, j = 0; j !== stride; ++ j )\n\n\t\t\t\t\tvalues[ writeOffset + j ] = values[ readOffset + j ];\n\n\t\t\t\t++ writeIndex;\n\n\t\t\t}\n\n\t\t\tif ( writeIndex !== times.length ) {\n\n\t\t\t\tthis.times = AnimationUtils.arraySlice( times, 0, writeIndex );\n\t\t\t\tthis.values = AnimationUtils.arraySlice( values, 0, writeIndex * stride );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\tfunction KeyframeTrackConstructor( name, times, values, interpolation ) {\n\n\t\tif( name === undefined ) throw new Error( \"track name is undefined\" );\n\n\t\tif( times === undefined || times.length === 0 ) {\n\n\t\t\tthrow new Error( \"no keyframes in track named \" + name );\n\n\t\t}\n\n\t\tthis.name = name;\n\n\t\tthis.times = AnimationUtils.convertArray( times, this.TimeBufferType );\n\t\tthis.values = AnimationUtils.convertArray( values, this.ValueBufferType );\n\n\t\tthis.setInterpolation( interpolation || this.DefaultInterpolation );\n\n\t\tthis.validate();\n\t\tthis.optimize();\n\n\t}\n\n\t/**\n\t *\n\t * A Track of vectored keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction VectorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values, interpolation );\n\n\t}\n\n\tVectorKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: VectorKeyframeTrack,\n\n\t\tValueTypeName: 'vector'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t * Spherical linear unit quaternion interpolant.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction QuaternionLinearInterpolant(\n\t\t\tparameterPositions, sampleValues, sampleSize, resultBuffer ) {\n\n\t\tInterpolant.call(\n\t\t\t\tthis, parameterPositions, sampleValues, sampleSize, resultBuffer );\n\n\t}\n\n\tQuaternionLinearInterpolant.prototype =\n\t\t\tObject.assign( Object.create( Interpolant.prototype ), {\n\n\t\tconstructor: QuaternionLinearInterpolant,\n\n\t\tinterpolate_: function( i1, t0, t, t1 ) {\n\n\t\t\tvar result = this.resultBuffer,\n\t\t\t\tvalues = this.sampleValues,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toffset = i1 * stride,\n\n\t\t\t\talpha = ( t - t0 ) / ( t1 - t0 );\n\n\t\t\tfor ( var end = offset + stride; offset !== end; offset += 4 ) {\n\n\t\t\t\tQuaternion.slerpFlat( result, 0,\n\t\t\t\t\t\tvalues, offset - stride, values, offset, alpha );\n\n\t\t\t}\n\n\t\t\treturn result;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of quaternion keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction QuaternionKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values, interpolation );\n\n\t}\n\n\tQuaternionKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: QuaternionKeyframeTrack,\n\n\t\tValueTypeName: 'quaternion',\n\n\t\t// ValueBufferType is inherited\n\n\t\tDefaultInterpolation: InterpolateLinear,\n\n\t\tInterpolantFactoryMethodLinear: function( result ) {\n\n\t\t\treturn new QuaternionLinearInterpolant(\n\t\t\t\t\tthis.times, this.values, this.getValueSize(), result );\n\n\t\t},\n\n\t\tInterpolantFactoryMethodSmooth: undefined // not yet implemented\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of numeric keyframe values.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction NumberKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values, interpolation );\n\n\t}\n\n\tNumberKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: NumberKeyframeTrack,\n\n\t\tValueTypeName: 'number',\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\t} );\n\n\t/**\n\t *\n\t * A Track that interpolates Strings\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction StringKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values, interpolation );\n\n\t}\n\n\tStringKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: StringKeyframeTrack,\n\n\t\tValueTypeName: 'string',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of Boolean keyframe values.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction BooleanKeyframeTrack( name, times, values ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values );\n\n\t}\n\n\tBooleanKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: BooleanKeyframeTrack,\n\n\t\tValueTypeName: 'bool',\n\t\tValueBufferType: Array,\n\n\t\tDefaultInterpolation: InterpolateDiscrete,\n\n\t\tInterpolantFactoryMethodLinear: undefined,\n\t\tInterpolantFactoryMethodSmooth: undefined\n\n\t\t// Note: Actually this track could have a optimized / compressed\n\t\t// representation of a single value and a custom interpolant that\n\t\t// computes \"firstValue ^ isOdd( index )\".\n\n\t} );\n\n\t/**\n\t *\n\t * A Track of keyframe values that represent color.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction ColorKeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.call( this, name, times, values, interpolation );\n\n\t}\n\n\tColorKeyframeTrack.prototype =\n\t\t\tObject.assign( Object.create( KeyframeTrackPrototype ), {\n\n\t\tconstructor: ColorKeyframeTrack,\n\n\t\tValueTypeName: 'color'\n\n\t\t// ValueBufferType is inherited\n\n\t\t// DefaultInterpolation is inherited\n\n\n\t\t// Note: Very basic implementation and nothing special yet.\n\t\t// However, this is the place for color space parameterization.\n\n\t} );\n\n\t/**\n\t *\n\t * A timed sequence of keyframes for a specific property.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction KeyframeTrack( name, times, values, interpolation ) {\n\n\t\tKeyframeTrackConstructor.apply( this, arguments );\n\n\t}\n\n\tKeyframeTrack.prototype = KeyframeTrackPrototype;\n\tKeyframeTrackPrototype.constructor = KeyframeTrack;\n\n\t// Static methods:\n\n\tObject.assign( KeyframeTrack, {\n\n\t\t// Serialization (in static context, because of constructor invocation\n\t\t// and automatic invocation of .toJSON):\n\n\t\tparse: function( json ) {\n\n\t\t\tif( json.type === undefined ) {\n\n\t\t\t\tthrow new Error( \"track type undefined, can not parse\" );\n\n\t\t\t}\n\n\t\t\tvar trackType = KeyframeTrack._getTrackTypeForValueTypeName( json.type );\n\n\t\t\tif ( json.times === undefined ) {\n\n\t\t\t\tvar times = [], values = [];\n\n\t\t\t\tAnimationUtils.flattenJSON( json.keys, times, values, 'value' );\n\n\t\t\t\tjson.times = times;\n\t\t\t\tjson.values = values;\n\n\t\t\t}\n\n\t\t\t// derived classes can define a static parse method\n\t\t\tif ( trackType.parse !== undefined ) {\n\n\t\t\t\treturn trackType.parse( json );\n\n\t\t\t} else {\n\n\t\t\t\t// by default, we asssume a constructor compatible with the base\n\t\t\t\treturn new trackType(\n\t\t\t\t\t\tjson.name, json.times, json.values, json.interpolation );\n\n\t\t\t}\n\n\t\t},\n\n\t\ttoJSON: function( track ) {\n\n\t\t\tvar trackType = track.constructor;\n\n\t\t\tvar json;\n\n\t\t\t// derived classes can define a static toJSON method\n\t\t\tif ( trackType.toJSON !== undefined ) {\n\n\t\t\t\tjson = trackType.toJSON( track );\n\n\t\t\t} else {\n\n\t\t\t\t// by default, we assume the data can be serialized as-is\n\t\t\t\tjson = {\n\n\t\t\t\t\t'name': track.name,\n\t\t\t\t\t'times': AnimationUtils.convertArray( track.times, Array ),\n\t\t\t\t\t'values': AnimationUtils.convertArray( track.values, Array )\n\n\t\t\t\t};\n\n\t\t\t\tvar interpolation = track.getInterpolation();\n\n\t\t\t\tif ( interpolation !== track.DefaultInterpolation ) {\n\n\t\t\t\t\tjson.interpolation = interpolation;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tjson.type = track.ValueTypeName; // mandatory\n\n\t\t\treturn json;\n\n\t\t},\n\n\t\t_getTrackTypeForValueTypeName: function( typeName ) {\n\n\t\t\tswitch( typeName.toLowerCase() ) {\n\n\t\t\t\tcase \"scalar\":\n\t\t\t\tcase \"double\":\n\t\t\t\tcase \"float\":\n\t\t\t\tcase \"number\":\n\t\t\t\tcase \"integer\":\n\n\t\t\t\t\treturn NumberKeyframeTrack;\n\n\t\t\t\tcase \"vector\":\n\t\t\t\tcase \"vector2\":\n\t\t\t\tcase \"vector3\":\n\t\t\t\tcase \"vector4\":\n\n\t\t\t\t\treturn VectorKeyframeTrack;\n\n\t\t\t\tcase \"color\":\n\n\t\t\t\t\treturn ColorKeyframeTrack;\n\n\t\t\t\tcase \"quaternion\":\n\n\t\t\t\t\treturn QuaternionKeyframeTrack;\n\n\t\t\t\tcase \"bool\":\n\t\t\t\tcase \"boolean\":\n\n\t\t\t\t\treturn BooleanKeyframeTrack;\n\n\t\t\t\tcase \"string\":\n\n\t\t\t\t\treturn StringKeyframeTrack;\n\n\t\t\t}\n\n\t\t\tthrow new Error( \"Unsupported typeName: \" + typeName );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Reusable set of Tracks that represent an animation.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t */\n\n\tfunction AnimationClip( name, duration, tracks ) {\n\n\t\tthis.name = name;\n\t\tthis.tracks = tracks;\n\t\tthis.duration = ( duration !== undefined ) ? duration : -1;\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// this means it should figure out its duration by scanning the tracks\n\t\tif ( this.duration < 0 ) {\n\n\t\t\tthis.resetDuration();\n\n\t\t}\n\n\t\tthis.optimize();\n\n\t}\n\n\tAnimationClip.prototype = {\n\n\t\tconstructor: AnimationClip,\n\n\t\tresetDuration: function() {\n\n\t\t\tvar tracks = this.tracks,\n\t\t\t\tduration = 0;\n\n\t\t\tfor ( var i = 0, n = tracks.length; i !== n; ++ i ) {\n\n\t\t\t\tvar track = this.tracks[ i ];\n\n\t\t\t\tduration = Math.max(\n\t\t\t\t\t\tduration, track.times[ track.times.length - 1 ] );\n\n\t\t\t}\n\n\t\t\tthis.duration = duration;\n\n\t\t},\n\n\t\ttrim: function() {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].trim( 0, this.duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\toptimize: function() {\n\n\t\t\tfor ( var i = 0; i < this.tracks.length; i ++ ) {\n\n\t\t\t\tthis.tracks[ i ].optimize();\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t// Static methods:\n\n\tObject.assign( AnimationClip, {\n\n\t\tparse: function( json ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tjsonTracks = json.tracks,\n\t\t\t\tframeTime = 1.0 / ( json.fps || 1.0 );\n\n\t\t\tfor ( var i = 0, n = jsonTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( KeyframeTrack.parse( jsonTracks[ i ] ).scale( frameTime ) );\n\n\t\t\t}\n\n\t\t\treturn new AnimationClip( json.name, json.duration, tracks );\n\n\t\t},\n\n\n\t\ttoJSON: function( clip ) {\n\n\t\t\tvar tracks = [],\n\t\t\t\tclipTracks = clip.tracks;\n\n\t\t\tvar json = {\n\n\t\t\t\t'name': clip.name,\n\t\t\t\t'duration': clip.duration,\n\t\t\t\t'tracks': tracks\n\n\t\t\t};\n\n\t\t\tfor ( var i = 0, n = clipTracks.length; i !== n; ++ i ) {\n\n\t\t\t\ttracks.push( KeyframeTrack.toJSON( clipTracks[ i ] ) );\n\n\t\t\t}\n\n\t\t\treturn json;\n\n\t\t},\n\n\n\t\tCreateFromMorphTargetSequence: function( name, morphTargetSequence, fps, noLoop ) {\n\n\t\t\tvar numMorphTargets = morphTargetSequence.length;\n\t\t\tvar tracks = [];\n\n\t\t\tfor ( var i = 0; i < numMorphTargets; i ++ ) {\n\n\t\t\t\tvar times = [];\n\t\t\t\tvar values = [];\n\n\t\t\t\ttimes.push(\n\t\t\t\t\t\t( i + numMorphTargets - 1 ) % numMorphTargets,\n\t\t\t\t\t\ti,\n\t\t\t\t\t\t( i + 1 ) % numMorphTargets );\n\n\t\t\t\tvalues.push( 0, 1, 0 );\n\n\t\t\t\tvar order = AnimationUtils.getKeyframeOrder( times );\n\t\t\t\ttimes = AnimationUtils.sortedArray( times, 1, order );\n\t\t\t\tvalues = AnimationUtils.sortedArray( values, 1, order );\n\n\t\t\t\t// if there is a key at the first frame, duplicate it as the\n\t\t\t\t// last frame as well for perfect loop.\n\t\t\t\tif ( ! noLoop && times[ 0 ] === 0 ) {\n\n\t\t\t\t\ttimes.push( numMorphTargets );\n\t\t\t\t\tvalues.push( values[ 0 ] );\n\n\t\t\t\t}\n\n\t\t\t\ttracks.push(\n\t\t\t\t\t\tnew NumberKeyframeTrack(\n\t\t\t\t\t\t\t'.morphTargetInfluences[' + morphTargetSequence[ i ].name + ']',\n\t\t\t\t\t\t\ttimes, values\n\t\t\t\t\t\t).scale( 1.0 / fps ) );\n\t\t\t}\n\n\t\t\treturn new AnimationClip( name, -1, tracks );\n\n\t\t},\n\n\t\tfindByName: function( objectOrClipArray, name ) {\n\n\t\t\tvar clipArray = objectOrClipArray;\n\n\t\t\tif ( ! Array.isArray( objectOrClipArray ) ) {\n\n\t\t\t\tvar o = objectOrClipArray;\n\t\t\t\tclipArray = o.geometry && o.geometry.animations || o.animations;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i < clipArray.length; i ++ ) {\n\n\t\t\t\tif ( clipArray[ i ].name === name ) {\n\n\t\t\t\t\treturn clipArray[ i ];\n\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\tCreateClipsFromMorphTargetSequences: function( morphTargets, fps, noLoop ) {\n\n\t\t\tvar animationToMorphTargets = {};\n\n\t\t\t// tested with https://regex101.com/ on trick sequences\n\t\t\t// such flamingo_flyA_003, flamingo_run1_003, crdeath0059\n\t\t\tvar pattern = /^([\\w-]*?)([\\d]+)$/;\n\n\t\t\t// sort morph target names into animation groups based\n\t\t\t// patterns like Walk_001, Walk_002, Run_001, Run_002\n\t\t\tfor ( var i = 0, il = morphTargets.length; i < il; i ++ ) {\n\n\t\t\t\tvar morphTarget = morphTargets[ i ];\n\t\t\t\tvar parts = morphTarget.name.match( pattern );\n\n\t\t\t\tif ( parts && parts.length > 1 ) {\n\n\t\t\t\t\tvar name = parts[ 1 ];\n\n\t\t\t\t\tvar animationMorphTargets = animationToMorphTargets[ name ];\n\t\t\t\t\tif ( ! animationMorphTargets ) {\n\n\t\t\t\t\t\tanimationToMorphTargets[ name ] = animationMorphTargets = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tanimationMorphTargets.push( morphTarget );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar clips = [];\n\n\t\t\tfor ( var name in animationToMorphTargets ) {\n\n\t\t\t\tclips.push( AnimationClip.CreateFromMorphTargetSequence( name, animationToMorphTargets[ name ], fps, noLoop ) );\n\n\t\t\t}\n\n\t\t\treturn clips;\n\n\t\t},\n\n\t\t// parse the animation.hierarchy format\n\t\tparseAnimation: function( animation, bones ) {\n\n\t\t\tif ( ! animation ) {\n\n\t\t\t\tconsole.error( \" no animation in JSONLoader data\" );\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar addNonemptyTrack = function(\n\t\t\t\t\ttrackType, trackName, animationKeys, propertyName, destTracks ) {\n\n\t\t\t\t// only return track if there are actually keys.\n\t\t\t\tif ( animationKeys.length !== 0 ) {\n\n\t\t\t\t\tvar times = [];\n\t\t\t\t\tvar values = [];\n\n\t\t\t\t\tAnimationUtils.flattenJSON(\n\t\t\t\t\t\t\tanimationKeys, times, values, propertyName );\n\n\t\t\t\t\t// empty keys are filtered out, so check again\n\t\t\t\t\tif ( times.length !== 0 ) {\n\n\t\t\t\t\t\tdestTracks.push( new trackType( trackName, times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t\tvar tracks = [];\n\n\t\t\tvar clipName = animation.name || 'default';\n\t\t\t// automatic length determination in AnimationClip.\n\t\t\tvar duration = animation.length || -1;\n\t\t\tvar fps = animation.fps || 30;\n\n\t\t\tvar hierarchyTracks = animation.hierarchy || [];\n\n\t\t\tfor ( var h = 0; h < hierarchyTracks.length; h ++ ) {\n\n\t\t\t\tvar animationKeys = hierarchyTracks[ h ].keys;\n\n\t\t\t\t// skip empty tracks\n\t\t\t\tif ( ! animationKeys || animationKeys.length === 0 ) continue;\n\n\t\t\t\t// process morph targets in a way exactly compatible\n\t\t\t\t// with AnimationHandler.init( animation )\n\t\t\t\tif ( animationKeys[0].morphTargets ) {\n\n\t\t\t\t\t// figure out all morph targets used in this track\n\t\t\t\t\tvar morphTargetNames = {};\n\t\t\t\t\tfor ( var k = 0; k < animationKeys.length; k ++ ) {\n\n\t\t\t\t\t\tif ( animationKeys[k].morphTargets ) {\n\n\t\t\t\t\t\t\tfor ( var m = 0; m < animationKeys[k].morphTargets.length; m ++ ) {\n\n\t\t\t\t\t\t\t\tmorphTargetNames[ animationKeys[k].morphTargets[m] ] = -1;\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t\t// create a track for each morph target with all zero\n\t\t\t\t\t// morphTargetInfluences except for the keys in which\n\t\t\t\t\t// the morphTarget is named.\n\t\t\t\t\tfor ( var morphTargetName in morphTargetNames ) {\n\n\t\t\t\t\t\tvar times = [];\n\t\t\t\t\t\tvar values = [];\n\n\t\t\t\t\t\tfor ( var m = 0;\n\t\t\t\t\t\t\t\tm !== animationKeys[k].morphTargets.length; ++ m ) {\n\n\t\t\t\t\t\t\tvar animationKey = animationKeys[k];\n\n\t\t\t\t\t\t\ttimes.push( animationKey.time );\n\t\t\t\t\t\t\tvalues.push( ( animationKey.morphTarget === morphTargetName ) ? 1 : 0 );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttracks.push( new NumberKeyframeTrack(\n\t\t\t\t\t\t\t\t'.morphTargetInfluence[' + morphTargetName + ']', times, values ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tduration = morphTargetNames.length * ( fps || 1.0 );\n\n\t\t\t\t} else {\n\t\t\t\t\t// ...assume skeletal animation\n\n\t\t\t\t\tvar boneName = '.bones[' + bones[ h ].name + ']';\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.position',\n\t\t\t\t\t\t\tanimationKeys, 'pos', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\t\tQuaternionKeyframeTrack, boneName + '.quaternion',\n\t\t\t\t\t\t\tanimationKeys, 'rot', tracks );\n\n\t\t\t\t\taddNonemptyTrack(\n\t\t\t\t\t\t\tVectorKeyframeTrack, boneName + '.scale',\n\t\t\t\t\t\t\tanimationKeys, 'scl', tracks );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tif ( tracks.length === 0 ) {\n\n\t\t\t\treturn null;\n\n\t\t\t}\n\n\t\t\tvar clip = new AnimationClip( clipName, duration, tracks );\n\n\t\t\treturn clip;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction MaterialLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.textures = {};\n\n\t}\n\n\tObject.assign( MaterialLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new XHRLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTextures: function ( value ) {\n\n\t\t\tthis.textures = value;\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar textures = this.textures;\n\n\t\t\tfunction getTexture( name ) {\n\n\t\t\t\tif ( textures[ name ] === undefined ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.MaterialLoader: Undefined texture', name );\n\n\t\t\t\t}\n\n\t\t\t\treturn textures[ name ];\n\n\t\t\t}\n\n\t\t\tvar material = new Materials[ json.type ]();\n\n\t\t\tif ( json.uuid !== undefined ) material.uuid = json.uuid;\n\t\t\tif ( json.name !== undefined ) material.name = json.name;\n\t\t\tif ( json.color !== undefined ) material.color.setHex( json.color );\n\t\t\tif ( json.roughness !== undefined ) material.roughness = json.roughness;\n\t\t\tif ( json.metalness !== undefined ) material.metalness = json.metalness;\n\t\t\tif ( json.emissive !== undefined ) material.emissive.setHex( json.emissive );\n\t\t\tif ( json.specular !== undefined ) material.specular.setHex( json.specular );\n\t\t\tif ( json.shininess !== undefined ) material.shininess = json.shininess;\n\t\t\tif ( json.uniforms !== undefined ) material.uniforms = json.uniforms;\n\t\t\tif ( json.vertexShader !== undefined ) material.vertexShader = json.vertexShader;\n\t\t\tif ( json.fragmentShader !== undefined ) material.fragmentShader = json.fragmentShader;\n\t\t\tif ( json.vertexColors !== undefined ) material.vertexColors = json.vertexColors;\n\t\t\tif ( json.fog !== undefined ) material.fog = json.fog;\n\t\t\tif ( json.shading !== undefined ) material.shading = json.shading;\n\t\t\tif ( json.blending !== undefined ) material.blending = json.blending;\n\t\t\tif ( json.side !== undefined ) material.side = json.side;\n\t\t\tif ( json.opacity !== undefined ) material.opacity = json.opacity;\n\t\t\tif ( json.transparent !== undefined ) material.transparent = json.transparent;\n\t\t\tif ( json.alphaTest !== undefined ) material.alphaTest = json.alphaTest;\n\t\t\tif ( json.depthTest !== undefined ) material.depthTest = json.depthTest;\n\t\t\tif ( json.depthWrite !== undefined ) material.depthWrite = json.depthWrite;\n\t\t\tif ( json.colorWrite !== undefined ) material.colorWrite = json.colorWrite;\n\t\t\tif ( json.wireframe !== undefined ) material.wireframe = json.wireframe;\n\t\t\tif ( json.wireframeLinewidth !== undefined ) material.wireframeLinewidth = json.wireframeLinewidth;\n\t\t\tif ( json.wireframeLinecap !== undefined ) material.wireframeLinecap = json.wireframeLinecap;\n\t\t\tif ( json.wireframeLinejoin !== undefined ) material.wireframeLinejoin = json.wireframeLinejoin;\n\t\t\tif ( json.skinning !== undefined ) material.skinning = json.skinning;\n\t\t\tif ( json.morphTargets !== undefined ) material.morphTargets = json.morphTargets;\n\n\t\t\t// for PointsMaterial\n\n\t\t\tif ( json.size !== undefined ) material.size = json.size;\n\t\t\tif ( json.sizeAttenuation !== undefined ) material.sizeAttenuation = json.sizeAttenuation;\n\n\t\t\t// maps\n\n\t\t\tif ( json.map !== undefined ) material.map = getTexture( json.map );\n\n\t\t\tif ( json.alphaMap !== undefined ) {\n\n\t\t\t\tmaterial.alphaMap = getTexture( json.alphaMap );\n\t\t\t\tmaterial.transparent = true;\n\n\t\t\t}\n\n\t\t\tif ( json.bumpMap !== undefined ) material.bumpMap = getTexture( json.bumpMap );\n\t\t\tif ( json.bumpScale !== undefined ) material.bumpScale = json.bumpScale;\n\n\t\t\tif ( json.normalMap !== undefined ) material.normalMap = getTexture( json.normalMap );\n\t\t\tif ( json.normalScale !== undefined ) {\n\n\t\t\t\tvar normalScale = json.normalScale;\n\n\t\t\t\tif ( Array.isArray( normalScale ) === false ) {\n\n\t\t\t\t\t// Blender exporter used to export a scalar. See #7459\n\n\t\t\t\t\tnormalScale = [ normalScale, normalScale ];\n\n\t\t\t\t}\n\n\t\t\t\tmaterial.normalScale = new Vector2().fromArray( normalScale );\n\n\t\t\t}\n\n\t\t\tif ( json.displacementMap !== undefined ) material.displacementMap = getTexture( json.displacementMap );\n\t\t\tif ( json.displacementScale !== undefined ) material.displacementScale = json.displacementScale;\n\t\t\tif ( json.displacementBias !== undefined ) material.displacementBias = json.displacementBias;\n\n\t\t\tif ( json.roughnessMap !== undefined ) material.roughnessMap = getTexture( json.roughnessMap );\n\t\t\tif ( json.metalnessMap !== undefined ) material.metalnessMap = getTexture( json.metalnessMap );\n\n\t\t\tif ( json.emissiveMap !== undefined ) material.emissiveMap = getTexture( json.emissiveMap );\n\t\t\tif ( json.emissiveIntensity !== undefined ) material.emissiveIntensity = json.emissiveIntensity;\n\n\t\t\tif ( json.specularMap !== undefined ) material.specularMap = getTexture( json.specularMap );\n\n\t\t\tif ( json.envMap !== undefined ) material.envMap = getTexture( json.envMap );\n\n\t\t\tif ( json.reflectivity !== undefined ) material.reflectivity = json.reflectivity;\n\n\t\t\tif ( json.lightMap !== undefined ) material.lightMap = getTexture( json.lightMap );\n\t\t\tif ( json.lightMapIntensity !== undefined ) material.lightMapIntensity = json.lightMapIntensity;\n\n\t\t\tif ( json.aoMap !== undefined ) material.aoMap = getTexture( json.aoMap );\n\t\t\tif ( json.aoMapIntensity !== undefined ) material.aoMapIntensity = json.aoMapIntensity;\n\n\t\t\t// MultiMaterial\n\n\t\t\tif ( json.materials !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.materials.length; i < l; i ++ ) {\n\n\t\t\t\t\tmaterial.materials.push( this.parse( json.materials[ i ] ) );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn material;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BufferGeometryLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( BufferGeometryLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new XHRLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tonLoad( scope.parse( JSON.parse( text ) ) );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\tvar geometry = new BufferGeometry();\n\n\t\t\tvar index = json.data.index;\n\n\t\t\tvar TYPED_ARRAYS = {\n\t\t\t\t'Int8Array': Int8Array,\n\t\t\t\t'Uint8Array': Uint8Array,\n\t\t\t\t'Uint8ClampedArray': Uint8ClampedArray,\n\t\t\t\t'Int16Array': Int16Array,\n\t\t\t\t'Uint16Array': Uint16Array,\n\t\t\t\t'Int32Array': Int32Array,\n\t\t\t\t'Uint32Array': Uint32Array,\n\t\t\t\t'Float32Array': Float32Array,\n\t\t\t\t'Float64Array': Float64Array\n\t\t\t};\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ index.type ]( index.array );\n\t\t\t\tgeometry.setIndex( new BufferAttribute( typedArray, 1 ) );\n\n\t\t\t}\n\n\t\t\tvar attributes = json.data.attributes;\n\n\t\t\tfor ( var key in attributes ) {\n\n\t\t\t\tvar attribute = attributes[ key ];\n\t\t\t\tvar typedArray = new TYPED_ARRAYS[ attribute.type ]( attribute.array );\n\n\t\t\t\tgeometry.addAttribute( key, new BufferAttribute( typedArray, attribute.itemSize, attribute.normalized ) );\n\n\t\t\t}\n\n\t\t\tvar groups = json.data.groups || json.data.drawcalls || json.data.offsets;\n\n\t\t\tif ( groups !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, n = groups.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar group = groups[ i ];\n\n\t\t\t\t\tgeometry.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar boundingSphere = json.data.boundingSphere;\n\n\t\t\tif ( boundingSphere !== undefined ) {\n\n\t\t\t\tvar center = new Vector3();\n\n\t\t\t\tif ( boundingSphere.center !== undefined ) {\n\n\t\t\t\t\tcenter.fromArray( boundingSphere.center );\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.boundingSphere = new Sphere( center, boundingSphere.radius );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Loader() {\n\n\t\tthis.onLoadStart = function () {};\n\t\tthis.onLoadProgress = function () {};\n\t\tthis.onLoadComplete = function () {};\n\n\t}\n\n\tLoader.prototype = {\n\n\t\tconstructor: Loader,\n\n\t\tcrossOrigin: undefined,\n\n\t\textractUrlBase: function ( url ) {\n\n\t\t\tvar parts = url.split( '/' );\n\n\t\t\tif ( parts.length === 1 ) return './';\n\n\t\t\tparts.pop();\n\n\t\t\treturn parts.join( '/' ) + '/';\n\n\t\t},\n\n\t\tinitMaterials: function ( materials, texturePath, crossOrigin ) {\n\n\t\t\tvar array = [];\n\n\t\t\tfor ( var i = 0; i < materials.length; ++ i ) {\n\n\t\t\t\tarray[ i ] = this.createMaterial( materials[ i ], texturePath, crossOrigin );\n\n\t\t\t}\n\n\t\t\treturn array;\n\n\t\t},\n\n\t\tcreateMaterial: ( function () {\n\n\t\t\tvar color, textureLoader, materialLoader;\n\n\t\t\treturn function createMaterial( m, texturePath, crossOrigin ) {\n\n\t\t\t\tif ( color === undefined ) color = new Color();\n\t\t\t\tif ( textureLoader === undefined ) textureLoader = new TextureLoader();\n\t\t\t\tif ( materialLoader === undefined ) materialLoader = new MaterialLoader();\n\n\t\t\t\t// convert from old material format\n\n\t\t\t\tvar textures = {};\n\n\t\t\t\tfunction loadTexture( path, repeat, offset, wrap, anisotropy ) {\n\n\t\t\t\t\tvar fullPath = texturePath + path;\n\t\t\t\t\tvar loader = Loader.Handlers.get( fullPath );\n\n\t\t\t\t\tvar texture;\n\n\t\t\t\t\tif ( loader !== null ) {\n\n\t\t\t\t\t\ttexture = loader.load( fullPath );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\ttextureLoader.setCrossOrigin( crossOrigin );\n\t\t\t\t\t\ttexture = textureLoader.load( fullPath );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( repeat !== undefined ) {\n\n\t\t\t\t\t\ttexture.repeat.fromArray( repeat );\n\n\t\t\t\t\t\tif ( repeat[ 0 ] !== 1 ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( repeat[ 1 ] !== 1 ) texture.wrapT = RepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( offset !== undefined ) {\n\n\t\t\t\t\t\ttexture.offset.fromArray( offset );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( wrap !== undefined ) {\n\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'repeat' ) texture.wrapS = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 0 ] === 'mirror' ) texture.wrapS = MirroredRepeatWrapping;\n\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'repeat' ) texture.wrapT = RepeatWrapping;\n\t\t\t\t\t\tif ( wrap[ 1 ] === 'mirror' ) texture.wrapT = MirroredRepeatWrapping;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( anisotropy !== undefined ) {\n\n\t\t\t\t\t\ttexture.anisotropy = anisotropy;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar uuid = _Math.generateUUID();\n\n\t\t\t\t\ttextures[ uuid ] = texture;\n\n\t\t\t\t\treturn uuid;\n\n\t\t\t\t}\n\n\t\t\t\t//\n\n\t\t\t\tvar json = {\n\t\t\t\t\tuuid: _Math.generateUUID(),\n\t\t\t\t\ttype: 'MeshLambertMaterial'\n\t\t\t\t};\n\n\t\t\t\tfor ( var name in m ) {\n\n\t\t\t\t\tvar value = m[ name ];\n\n\t\t\t\t\tswitch ( name ) {\n\t\t\t\t\t\tcase 'DbgColor':\n\t\t\t\t\t\tcase 'DbgIndex':\n\t\t\t\t\t\tcase 'opticalDensity':\n\t\t\t\t\t\tcase 'illumination':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'DbgName':\n\t\t\t\t\t\t\tjson.name = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'blending':\n\t\t\t\t\t\t\tjson.blending = BlendingMode[ value ];\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorAmbient':\n\t\t\t\t\t\tcase 'mapAmbient':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial:', name, 'is no longer supported.' );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorDiffuse':\n\t\t\t\t\t\t\tjson.color = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorSpecular':\n\t\t\t\t\t\t\tjson.specular = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'colorEmissive':\n\t\t\t\t\t\t\tjson.emissive = color.fromArray( value ).getHex();\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'specularCoef':\n\t\t\t\t\t\t\tjson.shininess = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'shading':\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'basic' ) json.type = 'MeshBasicMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'phong' ) json.type = 'MeshPhongMaterial';\n\t\t\t\t\t\t\tif ( value.toLowerCase() === 'standard' ) json.type = 'MeshStandardMaterial';\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuse':\n\t\t\t\t\t\t\tjson.map = loadTexture( value, m.mapDiffuseRepeat, m.mapDiffuseOffset, m.mapDiffuseWrap, m.mapDiffuseAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapDiffuseRepeat':\n\t\t\t\t\t\tcase 'mapDiffuseOffset':\n\t\t\t\t\t\tcase 'mapDiffuseWrap':\n\t\t\t\t\t\tcase 'mapDiffuseAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissive':\n\t\t\t\t\t\t\tjson.emissiveMap = loadTexture( value, m.mapEmissiveRepeat, m.mapEmissiveOffset, m.mapEmissiveWrap, m.mapEmissiveAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapEmissiveRepeat':\n\t\t\t\t\t\tcase 'mapEmissiveOffset':\n\t\t\t\t\t\tcase 'mapEmissiveWrap':\n\t\t\t\t\t\tcase 'mapEmissiveAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLight':\n\t\t\t\t\t\t\tjson.lightMap = loadTexture( value, m.mapLightRepeat, m.mapLightOffset, m.mapLightWrap, m.mapLightAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapLightRepeat':\n\t\t\t\t\t\tcase 'mapLightOffset':\n\t\t\t\t\t\tcase 'mapLightWrap':\n\t\t\t\t\t\tcase 'mapLightAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAO':\n\t\t\t\t\t\t\tjson.aoMap = loadTexture( value, m.mapAORepeat, m.mapAOOffset, m.mapAOWrap, m.mapAOAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAORepeat':\n\t\t\t\t\t\tcase 'mapAOOffset':\n\t\t\t\t\t\tcase 'mapAOWrap':\n\t\t\t\t\t\tcase 'mapAOAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBump':\n\t\t\t\t\t\t\tjson.bumpMap = loadTexture( value, m.mapBumpRepeat, m.mapBumpOffset, m.mapBumpWrap, m.mapBumpAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpScale':\n\t\t\t\t\t\t\tjson.bumpScale = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapBumpRepeat':\n\t\t\t\t\t\tcase 'mapBumpOffset':\n\t\t\t\t\t\tcase 'mapBumpWrap':\n\t\t\t\t\t\tcase 'mapBumpAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormal':\n\t\t\t\t\t\t\tjson.normalMap = loadTexture( value, m.mapNormalRepeat, m.mapNormalOffset, m.mapNormalWrap, m.mapNormalAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalFactor':\n\t\t\t\t\t\t\tjson.normalScale = [ value, value ];\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapNormalRepeat':\n\t\t\t\t\t\tcase 'mapNormalOffset':\n\t\t\t\t\t\tcase 'mapNormalWrap':\n\t\t\t\t\t\tcase 'mapNormalAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecular':\n\t\t\t\t\t\t\tjson.specularMap = loadTexture( value, m.mapSpecularRepeat, m.mapSpecularOffset, m.mapSpecularWrap, m.mapSpecularAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapSpecularRepeat':\n\t\t\t\t\t\tcase 'mapSpecularOffset':\n\t\t\t\t\t\tcase 'mapSpecularWrap':\n\t\t\t\t\t\tcase 'mapSpecularAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalness':\n\t\t\t\t\t\t\tjson.metalnessMap = loadTexture( value, m.mapMetalnessRepeat, m.mapMetalnessOffset, m.mapMetalnessWrap, m.mapMetalnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapMetalnessRepeat':\n\t\t\t\t\t\tcase 'mapMetalnessOffset':\n\t\t\t\t\t\tcase 'mapMetalnessWrap':\n\t\t\t\t\t\tcase 'mapMetalnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughness':\n\t\t\t\t\t\t\tjson.roughnessMap = loadTexture( value, m.mapRoughnessRepeat, m.mapRoughnessOffset, m.mapRoughnessWrap, m.mapRoughnessAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapRoughnessRepeat':\n\t\t\t\t\t\tcase 'mapRoughnessOffset':\n\t\t\t\t\t\tcase 'mapRoughnessWrap':\n\t\t\t\t\t\tcase 'mapRoughnessAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlpha':\n\t\t\t\t\t\t\tjson.alphaMap = loadTexture( value, m.mapAlphaRepeat, m.mapAlphaOffset, m.mapAlphaWrap, m.mapAlphaAnisotropy );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'mapAlphaRepeat':\n\t\t\t\t\t\tcase 'mapAlphaOffset':\n\t\t\t\t\t\tcase 'mapAlphaWrap':\n\t\t\t\t\t\tcase 'mapAlphaAnisotropy':\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'flipSided':\n\t\t\t\t\t\t\tjson.side = BackSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'doubleSided':\n\t\t\t\t\t\t\tjson.side = DoubleSide;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'transparency':\n\t\t\t\t\t\t\tconsole.warn( 'THREE.Loader.createMaterial: transparency has been renamed to opacity' );\n\t\t\t\t\t\t\tjson.opacity = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'depthTest':\n\t\t\t\t\t\tcase 'depthWrite':\n\t\t\t\t\t\tcase 'colorWrite':\n\t\t\t\t\t\tcase 'opacity':\n\t\t\t\t\t\tcase 'reflectivity':\n\t\t\t\t\t\tcase 'transparent':\n\t\t\t\t\t\tcase 'visible':\n\t\t\t\t\t\tcase 'wireframe':\n\t\t\t\t\t\t\tjson[ name ] = value;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tcase 'vertexColors':\n\t\t\t\t\t\t\tif ( value === true ) json.vertexColors = VertexColors;\n\t\t\t\t\t\t\tif ( value === 'face' ) json.vertexColors = FaceColors;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\tdefault:\n\t\t\t\t\t\t\tconsole.error( 'THREE.Loader.createMaterial: Unsupported', name, value );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.type === 'MeshBasicMaterial' ) delete json.emissive;\n\t\t\t\tif ( json.type !== 'MeshPhongMaterial' ) delete json.specular;\n\n\t\t\t\tif ( json.opacity < 1 ) json.transparent = true;\n\n\t\t\t\tmaterialLoader.setTextures( textures );\n\n\t\t\t\treturn materialLoader.parse( json );\n\n\t\t\t};\n\n\t\t} )()\n\n\t};\n\n\tLoader.Handlers = {\n\n\t\thandlers: [],\n\n\t\tadd: function ( regex, loader ) {\n\n\t\t\tthis.handlers.push( regex, loader );\n\n\t\t},\n\n\t\tget: function ( file ) {\n\n\t\t\tvar handlers = this.handlers;\n\n\t\t\tfor ( var i = 0, l = handlers.length; i < l; i += 2 ) {\n\n\t\t\t\tvar regex = handlers[ i ];\n\t\t\t\tvar loader = handlers[ i + 1 ];\n\n\t\t\t\tif ( regex.test( file ) ) {\n\n\t\t\t\t\treturn loader;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction JSONLoader( manager ) {\n\n\t\tif ( typeof manager === 'boolean' ) {\n\n\t\t\tconsole.warn( 'THREE.JSONLoader: showStatus parameter has been removed from constructor.' );\n\t\t\tmanager = undefined;\n\n\t\t}\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t\tthis.withCredentials = false;\n\n\t}\n\n\tObject.assign( JSONLoader.prototype, {\n\n\t\tload: function( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar texturePath = this.texturePath && ( typeof this.texturePath === \"string\" ) ? this.texturePath : Loader.prototype.extractUrlBase( url );\n\n\t\t\tvar loader = new XHRLoader( this.manager );\n\t\t\tloader.setWithCredentials( this.withCredentials );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json = JSON.parse( text );\n\t\t\t\tvar metadata = json.metadata;\n\n\t\t\t\tif ( metadata !== undefined ) {\n\n\t\t\t\t\tvar type = metadata.type;\n\n\t\t\t\t\tif ( type !== undefined ) {\n\n\t\t\t\t\t\tif ( type.toLowerCase() === 'object' ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.ObjectLoader instead.' );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( type.toLowerCase() === 'scene' ) {\n\n\t\t\t\t\t\t\tconsole.error( 'THREE.JSONLoader: ' + url + ' should be loaded with THREE.SceneLoader instead.' );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tvar object = scope.parse( json, texturePath );\n\t\t\t\tonLoad( object.geometry, object.materials );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\n\t\t},\n\n\t\tparse: function ( json, texturePath ) {\n\n\t\t\tvar geometry = new Geometry(),\n\t\t\tscale = ( json.scale !== undefined ) ? 1.0 / json.scale : 1.0;\n\n\t\t\tparseModel( scale );\n\n\t\t\tparseSkin();\n\t\t\tparseMorphing( scale );\n\t\t\tparseAnimations();\n\n\t\t\tgeometry.computeFaceNormals();\n\t\t\tgeometry.computeBoundingSphere();\n\n\t\t\tfunction parseModel( scale ) {\n\n\t\t\t\tfunction isBitSet( value, position ) {\n\n\t\t\t\t\treturn value & ( 1 << position );\n\n\t\t\t\t}\n\n\t\t\t\tvar i, j, fi,\n\n\t\t\t\toffset, zLength,\n\n\t\t\tcolorIndex, normalIndex, uvIndex, materialIndex,\n\n\t\t\t\ttype,\n\t\t\t\tisQuad,\n\t\t\t\thasMaterial,\n\t\t\t\thasFaceVertexUv,\n\t\t\t\thasFaceNormal, hasFaceVertexNormal,\n\t\t\t\thasFaceColor, hasFaceVertexColor,\n\n\t\t\tvertex, face, faceA, faceB, hex, normal,\n\n\t\t\t\tuvLayer, uv, u, v,\n\n\t\t\t\tfaces = json.faces,\n\t\t\t\tvertices = json.vertices,\n\t\t\t\tnormals = json.normals,\n\t\t\t\tcolors = json.colors,\n\n\t\t\t\tnUvLayers = 0;\n\n\t\t\t\tif ( json.uvs !== undefined ) {\n\n\t\t\t\t\t// disregard empty arrays\n\n\t\t\t\t\tfor ( i = 0; i < json.uvs.length; i ++ ) {\n\n\t\t\t\t\t\tif ( json.uvs[ i ].length ) nUvLayers ++;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\tgeometry.faceVertexUvs[ i ] = [];\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = vertices.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\tvertex = new Vector3();\n\n\t\t\t\t\tvertex.x = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.y = vertices[ offset ++ ] * scale;\n\t\t\t\t\tvertex.z = vertices[ offset ++ ] * scale;\n\n\t\t\t\t\tgeometry.vertices.push( vertex );\n\n\t\t\t\t}\n\n\t\t\t\toffset = 0;\n\t\t\t\tzLength = faces.length;\n\n\t\t\t\twhile ( offset < zLength ) {\n\n\t\t\t\t\ttype = faces[ offset ++ ];\n\n\n\t\t\t\t\tisQuad = isBitSet( type, 0 );\n\t\t\t\t\thasMaterial = isBitSet( type, 1 );\n\t\t\t\t\thasFaceVertexUv = isBitSet( type, 3 );\n\t\t\t\t\thasFaceNormal = isBitSet( type, 4 );\n\t\t\t\t\thasFaceVertexNormal = isBitSet( type, 5 );\n\t\t\t\t\thasFaceColor\t = isBitSet( type, 6 );\n\t\t\t\t\thasFaceVertexColor = isBitSet( type, 7 );\n\n\t\t\t\t\t// console.log(\"type\", type, \"bits\", isQuad, hasMaterial, hasFaceVertexUv, hasFaceNormal, hasFaceVertexNormal, hasFaceColor, hasFaceVertexColor);\n\n\t\t\t\t\tif ( isQuad ) {\n\n\t\t\t\t\t\tfaceA = new Face3();\n\t\t\t\t\t\tfaceA.a = faces[ offset ];\n\t\t\t\t\t\tfaceA.b = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceA.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\tfaceB = new Face3();\n\t\t\t\t\t\tfaceB.a = faces[ offset + 1 ];\n\t\t\t\t\t\tfaceB.b = faces[ offset + 2 ];\n\t\t\t\t\t\tfaceB.c = faces[ offset + 3 ];\n\n\t\t\t\t\t\toffset += 4;\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tfaceA.materialIndex = materialIndex;\n\t\t\t\t\t\t\tfaceB.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi + 1 ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 4; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tif ( j !== 2 ) geometry.faceVertexUvs[ i ][ fi ].push( uv );\n\t\t\t\t\t\t\t\t\tif ( j !== 0 ) geometry.faceVertexUvs[ i ][ fi + 1 ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tfaceA.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tfaceB.normal.copy( faceA.normal );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexNormals.push( normal );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\tfaceA.color.setHex( hex );\n\t\t\t\t\t\t\tfaceB.color.setHex( hex );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 4; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\thex = colors[ colorIndex ];\n\n\t\t\t\t\t\t\t\tif ( i !== 2 ) faceA.vertexColors.push( new Color( hex ) );\n\t\t\t\t\t\t\t\tif ( i !== 0 ) faceB.vertexColors.push( new Color( hex ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( faceA );\n\t\t\t\t\t\tgeometry.faces.push( faceB );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tface = new Face3();\n\t\t\t\t\t\tface.a = faces[ offset ++ ];\n\t\t\t\t\t\tface.b = faces[ offset ++ ];\n\t\t\t\t\t\tface.c = faces[ offset ++ ];\n\n\t\t\t\t\t\tif ( hasMaterial ) {\n\n\t\t\t\t\t\t\tmaterialIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.materialIndex = materialIndex;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// to get face <=> uv index correspondence\n\n\t\t\t\t\t\tfi = geometry.faces.length;\n\n\t\t\t\t\t\tif ( hasFaceVertexUv ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < nUvLayers; i ++ ) {\n\n\t\t\t\t\t\t\t\tuvLayer = json.uvs[ i ];\n\n\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ] = [];\n\n\t\t\t\t\t\t\t\tfor ( j = 0; j < 3; j ++ ) {\n\n\t\t\t\t\t\t\t\t\tuvIndex = faces[ offset ++ ];\n\n\t\t\t\t\t\t\t\t\tu = uvLayer[ uvIndex * 2 ];\n\t\t\t\t\t\t\t\t\tv = uvLayer[ uvIndex * 2 + 1 ];\n\n\t\t\t\t\t\t\t\t\tuv = new Vector2( u, v );\n\n\t\t\t\t\t\t\t\t\tgeometry.faceVertexUvs[ i ][ fi ].push( uv );\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceNormal ) {\n\n\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\tface.normal.set(\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( hasFaceVertexNormal ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tnormalIndex = faces[ offset ++ ] * 3;\n\n\t\t\t\t\t\t\t\tnormal = new Vector3(\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ++ ],\n\t\t\t\t\t\t\t\t\tnormals[ normalIndex ]\n\t\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\t\tface.vertexNormals.push( normal );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceColor ) {\n\n\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\tface.color.setHex( colors[ colorIndex ] );\n\n\t\t\t\t\t\t}\n\n\n\t\t\t\t\t\tif ( hasFaceVertexColor ) {\n\n\t\t\t\t\t\t\tfor ( i = 0; i < 3; i ++ ) {\n\n\t\t\t\t\t\t\t\tcolorIndex = faces[ offset ++ ];\n\t\t\t\t\t\t\t\tface.vertexColors.push( new Color( colors[ colorIndex ] ) );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tgeometry.faces.push( face );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseSkin() {\n\n\t\t\t\tvar influencesPerVertex = ( json.influencesPerVertex !== undefined ) ? json.influencesPerVertex : 2;\n\n\t\t\t\tif ( json.skinWeights ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinWeights.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar x = json.skinWeights[ i ];\n\t\t\t\t\t\tvar y = ( influencesPerVertex > 1 ) ? json.skinWeights[ i + 1 ] : 0;\n\t\t\t\t\t\tvar z = ( influencesPerVertex > 2 ) ? json.skinWeights[ i + 2 ] : 0;\n\t\t\t\t\t\tvar w = ( influencesPerVertex > 3 ) ? json.skinWeights[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinWeights.push( new Vector4( x, y, z, w ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.skinIndices ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.skinIndices.length; i < l; i += influencesPerVertex ) {\n\n\t\t\t\t\t\tvar a = json.skinIndices[ i ];\n\t\t\t\t\t\tvar b = ( influencesPerVertex > 1 ) ? json.skinIndices[ i + 1 ] : 0;\n\t\t\t\t\t\tvar c = ( influencesPerVertex > 2 ) ? json.skinIndices[ i + 2 ] : 0;\n\t\t\t\t\t\tvar d = ( influencesPerVertex > 3 ) ? json.skinIndices[ i + 3 ] : 0;\n\n\t\t\t\t\t\tgeometry.skinIndices.push( new Vector4( a, b, c, d ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tgeometry.bones = json.bones;\n\n\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 && ( geometry.skinWeights.length !== geometry.skinIndices.length || geometry.skinIndices.length !== geometry.vertices.length ) ) {\n\n\t\t\t\t\tconsole.warn( 'When skinning, number of vertices (' + geometry.vertices.length + '), skinIndices (' +\n\t\t\t\t\t\tgeometry.skinIndices.length + '), and skinWeights (' + geometry.skinWeights.length + ') should match.' );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseMorphing( scale ) {\n\n\t\t\t\tif ( json.morphTargets !== undefined ) {\n\n\t\t\t\t\tfor ( var i = 0, l = json.morphTargets.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tgeometry.morphTargets[ i ] = {};\n\t\t\t\t\t\tgeometry.morphTargets[ i ].name = json.morphTargets[ i ].name;\n\t\t\t\t\t\tgeometry.morphTargets[ i ].vertices = [];\n\n\t\t\t\t\t\tvar dstVertices = geometry.morphTargets[ i ].vertices;\n\t\t\t\t\t\tvar srcVertices = json.morphTargets[ i ].vertices;\n\n\t\t\t\t\t\tfor ( var v = 0, vl = srcVertices.length; v < vl; v += 3 ) {\n\n\t\t\t\t\t\t\tvar vertex = new Vector3();\n\t\t\t\t\t\t\tvertex.x = srcVertices[ v ] * scale;\n\t\t\t\t\t\t\tvertex.y = srcVertices[ v + 1 ] * scale;\n\t\t\t\t\t\t\tvertex.z = srcVertices[ v + 2 ] * scale;\n\n\t\t\t\t\t\t\tdstVertices.push( vertex );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.morphColors !== undefined && json.morphColors.length > 0 ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.JSONLoader: \"morphColors\" no longer supported. Using them as face colors.' );\n\n\t\t\t\t\tvar faces = geometry.faces;\n\t\t\t\t\tvar morphColors = json.morphColors[ 0 ].colors;\n\n\t\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\t\tfaces[ i ].color.fromArray( morphColors, i * 3 );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tfunction parseAnimations() {\n\n\t\t\t\tvar outputAnimations = [];\n\n\t\t\t\t// parse old style Bone/Hierarchy animations\n\t\t\t\tvar animations = [];\n\n\t\t\t\tif ( json.animation !== undefined ) {\n\n\t\t\t\t\tanimations.push( json.animation );\n\n\t\t\t\t}\n\n\t\t\t\tif ( json.animations !== undefined ) {\n\n\t\t\t\t\tif ( json.animations.length ) {\n\n\t\t\t\t\t\tanimations = animations.concat( json.animations );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\tanimations.push( json.animations );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var i = 0; i < animations.length; i ++ ) {\n\n\t\t\t\t\tvar clip = AnimationClip.parseAnimation( animations[ i ], geometry.bones );\n\t\t\t\t\tif ( clip ) outputAnimations.push( clip );\n\n\t\t\t\t}\n\n\t\t\t\t// parse implicit morph animations\n\t\t\t\tif ( geometry.morphTargets ) {\n\n\t\t\t\t\t// TODO: Figure out what an appropraite FPS is for morph target animations -- defaulting to 10, but really it is completely arbitrary.\n\t\t\t\t\tvar morphAnimationClips = AnimationClip.CreateClipsFromMorphTargetSequences( geometry.morphTargets, 10 );\n\t\t\t\t\toutputAnimations = outputAnimations.concat( morphAnimationClips );\n\n\t\t\t\t}\n\n\t\t\t\tif ( outputAnimations.length > 0 ) geometry.animations = outputAnimations;\n\n\t\t\t}\n\n\t\t\tif ( json.materials === undefined || json.materials.length === 0 ) {\n\n\t\t\t\treturn { geometry: geometry };\n\n\t\t\t} else {\n\n\t\t\t\tvar materials = Loader.prototype.initMaterials( json.materials, texturePath, this.crossOrigin );\n\n\t\t\t\treturn { geometry: geometry, materials: materials };\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction ObjectLoader ( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\t\tthis.texturePath = '';\n\n\t}\n\n\tObject.assign( ObjectLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tif ( this.texturePath === '' ) {\n\n\t\t\t\tthis.texturePath = url.substring( 0, url.lastIndexOf( '/' ) + 1 );\n\n\t\t\t}\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new XHRLoader( scope.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tscope.parse( JSON.parse( text ), onLoad );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tsetTexturePath: function ( value ) {\n\n\t\t\tthis.texturePath = value;\n\n\t\t},\n\n\t\tsetCrossOrigin: function ( value ) {\n\n\t\t\tthis.crossOrigin = value;\n\n\t\t},\n\n\t\tparse: function ( json, onLoad ) {\n\n\t\t\tvar geometries = this.parseGeometries( json.geometries );\n\n\t\t\tvar images = this.parseImages( json.images, function () {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t} );\n\n\t\t\tvar textures = this.parseTextures( json.textures, images );\n\t\t\tvar materials = this.parseMaterials( json.materials, textures );\n\n\t\t\tvar object = this.parseObject( json.object, geometries, materials );\n\n\t\t\tif ( json.animations ) {\n\n\t\t\t\tobject.animations = this.parseAnimations( json.animations );\n\n\t\t\t}\n\n\t\t\tif ( json.images === undefined || json.images.length === 0 ) {\n\n\t\t\t\tif ( onLoad !== undefined ) onLoad( object );\n\n\t\t\t}\n\n\t\t\treturn object;\n\n\t\t},\n\n\t\tparseGeometries: function ( json ) {\n\n\t\t\tvar geometries = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar geometryLoader = new JSONLoader();\n\t\t\t\tvar bufferGeometryLoader = new BufferGeometryLoader();\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar geometry;\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tswitch ( data.type ) {\n\n\t\t\t\t\t\tcase 'PlaneGeometry':\n\t\t\t\t\t\tcase 'PlaneBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BoxGeometry':\n\t\t\t\t\t\tcase 'BoxBufferGeometry':\n\t\t\t\t\t\tcase 'CubeGeometry': // backwards compatible\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.width,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.depth,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.depthSegments\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CircleGeometry':\n\t\t\t\t\t\tcase 'CircleBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'CylinderGeometry':\n\t\t\t\t\t\tcase 'CylinderBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radiusTop,\n\t\t\t\t\t\t\t\tdata.radiusBottom,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'ConeGeometry':\n\t\t\t\t\t\tcase 'ConeBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.height,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.openEnded,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'SphereGeometry':\n\t\t\t\t\t\tcase 'SphereBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.widthSegments,\n\t\t\t\t\t\t\t\tdata.heightSegments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'DodecahedronGeometry':\n\t\t\t\t\t\tcase 'IcosahedronGeometry':\n\t\t\t\t\t\tcase 'OctahedronGeometry':\n\t\t\t\t\t\tcase 'TetrahedronGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.detail\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'RingGeometry':\n\t\t\t\t\t\tcase 'RingBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.innerRadius,\n\t\t\t\t\t\t\t\tdata.outerRadius,\n\t\t\t\t\t\t\t\tdata.thetaSegments,\n\t\t\t\t\t\t\t\tdata.phiSegments,\n\t\t\t\t\t\t\t\tdata.thetaStart,\n\t\t\t\t\t\t\t\tdata.thetaLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusGeometry':\n\t\t\t\t\t\tcase 'TorusBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.arc\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'TorusKnotGeometry':\n\t\t\t\t\t\tcase 'TorusKnotBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.radius,\n\t\t\t\t\t\t\t\tdata.tube,\n\t\t\t\t\t\t\t\tdata.tubularSegments,\n\t\t\t\t\t\t\t\tdata.radialSegments,\n\t\t\t\t\t\t\t\tdata.p,\n\t\t\t\t\t\t\t\tdata.q\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'LatheGeometry':\n\t\t\t\t\t\tcase 'LatheBufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = new Geometries[ data.type ](\n\t\t\t\t\t\t\t\tdata.points,\n\t\t\t\t\t\t\t\tdata.segments,\n\t\t\t\t\t\t\t\tdata.phiStart,\n\t\t\t\t\t\t\t\tdata.phiLength\n\t\t\t\t\t\t\t);\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'BufferGeometry':\n\n\t\t\t\t\t\t\tgeometry = bufferGeometryLoader.parse( data );\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tcase 'Geometry':\n\n\t\t\t\t\t\t\tgeometry = geometryLoader.parse( data.data, this.texturePath ).geometry;\n\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\tdefault:\n\n\t\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Unsupported geometry type \"' + data.type + '\"' );\n\n\t\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tgeometry.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) geometry.name = data.name;\n\n\t\t\t\t\tgeometries[ data.uuid ] = geometry;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn geometries;\n\n\t\t},\n\n\t\tparseMaterials: function ( json, textures ) {\n\n\t\t\tvar materials = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tvar loader = new MaterialLoader();\n\t\t\t\tloader.setTextures( textures );\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar material = loader.parse( json[ i ] );\n\t\t\t\t\tmaterials[ material.uuid ] = material;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn materials;\n\n\t\t},\n\n\t\tparseAnimations: function ( json ) {\n\n\t\t\tvar animations = [];\n\n\t\t\tfor ( var i = 0; i < json.length; i ++ ) {\n\n\t\t\t\tvar clip = AnimationClip.parse( json[ i ] );\n\n\t\t\t\tanimations.push( clip );\n\n\t\t\t}\n\n\t\t\treturn animations;\n\n\t\t},\n\n\t\tparseImages: function ( json, onLoad ) {\n\n\t\t\tvar scope = this;\n\t\t\tvar images = {};\n\n\t\t\tfunction loadImage( url ) {\n\n\t\t\t\tscope.manager.itemStart( url );\n\n\t\t\t\treturn loader.load( url, function () {\n\n\t\t\t\t\tscope.manager.itemEnd( url );\n\n\t\t\t\t}, undefined, function () {\n\n\t\t\t\t\tscope.manager.itemError( url );\n\n\t\t\t\t} );\n\n\t\t\t}\n\n\t\t\tif ( json !== undefined && json.length > 0 ) {\n\n\t\t\t\tvar manager = new LoadingManager( onLoad );\n\n\t\t\t\tvar loader = new ImageLoader( manager );\n\t\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar image = json[ i ];\n\t\t\t\t\tvar path = /^(\\/\\/)|([a-z]+:(\\/\\/)?)/i.test( image.url ) ? image.url : scope.texturePath + image.url;\n\n\t\t\t\t\timages[ image.uuid ] = loadImage( path );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn images;\n\n\t\t},\n\n\t\tparseTextures: function ( json, images ) {\n\n\t\t\tfunction parseConstant( value, type ) {\n\n\t\t\t\tif ( typeof( value ) === 'number' ) return value;\n\n\t\t\t\tconsole.warn( 'THREE.ObjectLoader.parseTexture: Constant should be in numeric form.', value );\n\n\t\t\t\treturn type[ value ];\n\n\t\t\t}\n\n\t\t\tvar textures = {};\n\n\t\t\tif ( json !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, l = json.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar data = json[ i ];\n\n\t\t\t\t\tif ( data.image === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: No \"image\" specified for', data.uuid );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( images[ data.image ] === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined image', data.image );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar texture = new Texture( images[ data.image ] );\n\t\t\t\t\ttexture.needsUpdate = true;\n\n\t\t\t\t\ttexture.uuid = data.uuid;\n\n\t\t\t\t\tif ( data.name !== undefined ) texture.name = data.name;\n\n\t\t\t\t\tif ( data.mapping !== undefined ) texture.mapping = parseConstant( data.mapping, TextureMapping );\n\n\t\t\t\t\tif ( data.offset !== undefined ) texture.offset.fromArray( data.offset );\n\t\t\t\t\tif ( data.repeat !== undefined ) texture.repeat.fromArray( data.repeat );\n\t\t\t\t\tif ( data.wrap !== undefined ) {\n\n\t\t\t\t\t\ttexture.wrapS = parseConstant( data.wrap[ 0 ], TextureWrapping );\n\t\t\t\t\t\ttexture.wrapT = parseConstant( data.wrap[ 1 ], TextureWrapping );\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( data.minFilter !== undefined ) texture.minFilter = parseConstant( data.minFilter, TextureFilter );\n\t\t\t\t\tif ( data.magFilter !== undefined ) texture.magFilter = parseConstant( data.magFilter, TextureFilter );\n\t\t\t\t\tif ( data.anisotropy !== undefined ) texture.anisotropy = data.anisotropy;\n\n\t\t\t\t\tif ( data.flipY !== undefined ) texture.flipY = data.flipY;\n\n\t\t\t\t\ttextures[ data.uuid ] = texture;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn textures;\n\n\t\t},\n\n\t\tparseObject: function () {\n\n\t\t\tvar matrix = new Matrix4();\n\n\t\t\treturn function parseObject( data, geometries, materials ) {\n\n\t\t\t\tvar object;\n\n\t\t\t\tfunction getGeometry( name ) {\n\n\t\t\t\t\tif ( geometries[ name ] === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined geometry', name );\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn geometries[ name ];\n\n\t\t\t\t}\n\n\t\t\t\tfunction getMaterial( name ) {\n\n\t\t\t\t\tif ( name === undefined ) return undefined;\n\n\t\t\t\t\tif ( materials[ name ] === undefined ) {\n\n\t\t\t\t\t\tconsole.warn( 'THREE.ObjectLoader: Undefined material', name );\n\n\t\t\t\t\t}\n\n\t\t\t\t\treturn materials[ name ];\n\n\t\t\t\t}\n\n\t\t\t\tswitch ( data.type ) {\n\n\t\t\t\t\tcase 'Scene':\n\n\t\t\t\t\t\tobject = new Scene();\n\n\t\t\t\t\t\tif ( data.background !== undefined ) {\n\n\t\t\t\t\t\t\tif ( Number.isInteger( data.background ) ) {\n\n\t\t\t\t\t\t\t\tobject.background = new Color( data.background );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( data.fog !== undefined ) {\n\n\t\t\t\t\t\t\tif ( data.fog.type === 'Fog' ) {\n\n\t\t\t\t\t\t\t\tobject.fog = new Fog( data.fog.color, data.fog.near, data.fog.far );\n\n\t\t\t\t\t\t\t} else if ( data.fog.type === 'FogExp2' ) {\n\n\t\t\t\t\t\t\t\tobject.fog = new FogExp2( data.fog.color, data.fog.density );\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PerspectiveCamera':\n\n\t\t\t\t\t\tobject = new PerspectiveCamera( data.fov, data.aspect, data.near, data.far );\n\n\t\t\t\t\t\tif ( data.focus !== undefined ) object.focus = data.focus;\n\t\t\t\t\t\tif ( data.zoom !== undefined ) object.zoom = data.zoom;\n\t\t\t\t\t\tif ( data.filmGauge !== undefined ) object.filmGauge = data.filmGauge;\n\t\t\t\t\t\tif ( data.filmOffset !== undefined ) object.filmOffset = data.filmOffset;\n\t\t\t\t\t\tif ( data.view !== undefined ) object.view = Object.assign( {}, data.view );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'OrthographicCamera':\n\n\t\t\t\t\t\tobject = new OrthographicCamera( data.left, data.right, data.top, data.bottom, data.near, data.far );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'AmbientLight':\n\n\t\t\t\t\t\tobject = new AmbientLight( data.color, data.intensity );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'DirectionalLight':\n\n\t\t\t\t\t\tobject = new DirectionalLight( data.color, data.intensity );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PointLight':\n\n\t\t\t\t\t\tobject = new PointLight( data.color, data.intensity, data.distance, data.decay );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'SpotLight':\n\n\t\t\t\t\t\tobject = new SpotLight( data.color, data.intensity, data.distance, data.angle, data.penumbra, data.decay );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'HemisphereLight':\n\n\t\t\t\t\t\tobject = new HemisphereLight( data.color, data.groundColor, data.intensity );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'Mesh':\n\n\t\t\t\t\t\tvar geometry = getGeometry( data.geometry );\n\t\t\t\t\t\tvar material = getMaterial( data.material );\n\n\t\t\t\t\t\tif ( geometry.bones && geometry.bones.length > 0 ) {\n\n\t\t\t\t\t\t\tobject = new SkinnedMesh( geometry, material );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tobject = new Mesh( geometry, material );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'LOD':\n\n\t\t\t\t\t\tobject = new LOD();\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'Line':\n\n\t\t\t\t\t\tobject = new Line( getGeometry( data.geometry ), getMaterial( data.material ), data.mode );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'LineSegments':\n\n\t\t\t\t\t\tobject = new LineSegments( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'PointCloud':\n\t\t\t\t\tcase 'Points':\n\n\t\t\t\t\t\tobject = new Points( getGeometry( data.geometry ), getMaterial( data.material ) );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'Sprite':\n\n\t\t\t\t\t\tobject = new Sprite( getMaterial( data.material ) );\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'Group':\n\n\t\t\t\t\t\tobject = new Group();\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\n\t\t\t\t\t\tobject = new Object3D();\n\n\t\t\t\t}\n\n\t\t\t\tobject.uuid = data.uuid;\n\n\t\t\t\tif ( data.name !== undefined ) object.name = data.name;\n\t\t\t\tif ( data.matrix !== undefined ) {\n\n\t\t\t\t\tmatrix.fromArray( data.matrix );\n\t\t\t\t\tmatrix.decompose( object.position, object.quaternion, object.scale );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tif ( data.position !== undefined ) object.position.fromArray( data.position );\n\t\t\t\t\tif ( data.rotation !== undefined ) object.rotation.fromArray( data.rotation );\n\t\t\t\t\tif ( data.quaternion !== undefined ) object.quaternion.fromArray( data.quaternion );\n\t\t\t\t\tif ( data.scale !== undefined ) object.scale.fromArray( data.scale );\n\n\t\t\t\t}\n\n\t\t\t\tif ( data.castShadow !== undefined ) object.castShadow = data.castShadow;\n\t\t\t\tif ( data.receiveShadow !== undefined ) object.receiveShadow = data.receiveShadow;\n\n\t\t\t\tif ( data.shadow ) {\n\n\t\t\t\t\tif ( data.shadow.bias !== undefined ) object.shadow.bias = data.shadow.bias;\n\t\t\t\t\tif ( data.shadow.radius !== undefined ) object.shadow.radius = data.shadow.radius;\n\t\t\t\t\tif ( data.shadow.mapSize !== undefined ) object.shadow.mapSize.fromArray( data.shadow.mapSize );\n\t\t\t\t\tif ( data.shadow.camera !== undefined ) object.shadow.camera = this.parseObject( data.shadow.camera );\n\n\t\t\t\t}\n\n\t\t\t\tif ( data.visible !== undefined ) object.visible = data.visible;\n\t\t\t\tif ( data.userData !== undefined ) object.userData = data.userData;\n\n\t\t\t\tif ( data.children !== undefined ) {\n\n\t\t\t\t\tfor ( var child in data.children ) {\n\n\t\t\t\t\t\tobject.add( this.parseObject( data.children[ child ], geometries, materials ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( data.type === 'LOD' ) {\n\n\t\t\t\t\tvar levels = data.levels;\n\n\t\t\t\t\tfor ( var l = 0; l < levels.length; l ++ ) {\n\n\t\t\t\t\t\tvar level = levels[ l ];\n\t\t\t\t\t\tvar child = object.getObjectByProperty( 'uuid', level.object );\n\n\t\t\t\t\t\tif ( child !== undefined ) {\n\n\t\t\t\t\t\t\tobject.addLevel( child, level.distance );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn object;\n\n\t\t\t};\n\n\t\t}()\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Extensible curve object\n\t *\n\t * Some common of Curve methods\n\t * .getPoint(t), getTangent(t)\n\t * .getPointAt(u), getTangentAt(u)\n\t * .getPoints(), .getSpacedPoints()\n\t * .getLength()\n\t * .updateArcLengths()\n\t *\n\t * This following classes subclasses THREE.Curve:\n\t *\n\t * -- 2d classes --\n\t * THREE.LineCurve\n\t * THREE.QuadraticBezierCurve\n\t * THREE.CubicBezierCurve\n\t * THREE.SplineCurve\n\t * THREE.ArcCurve\n\t * THREE.EllipseCurve\n\t *\n\t * -- 3d classes --\n\t * THREE.LineCurve3\n\t * THREE.QuadraticBezierCurve3\n\t * THREE.CubicBezierCurve3\n\t * THREE.SplineCurve3\n\t *\n\t * A series of curves can be represented as a THREE.CurvePath\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tAbstract Curve base class\n\t **************************************************************/\n\n\tfunction Curve() {}\n\n\tCurve.prototype = {\n\n\t\tconstructor: Curve,\n\n\t\t// Virtual base class method to overwrite and implement in subclasses\n\t\t//\t- t [0 .. 1]\n\n\t\tgetPoint: function ( t ) {\n\n\t\t\tconsole.warn( \"THREE.Curve: Warning, getPoint() not implemented!\" );\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// Get point at relative position in curve according to arc length\n\t\t// - u [0 .. 1]\n\n\t\tgetPointAt: function ( u ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getPoint( t );\n\n\t\t},\n\n\t\t// Get sequence of points using getPoint( t )\n\n\t\tgetPoints: function ( divisions ) {\n\n\t\t\tif ( ! divisions ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPoint( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get sequence of points using getPointAt( u )\n\n\t\tgetSpacedPoints: function ( divisions ) {\n\n\t\t\tif ( ! divisions ) divisions = 5;\n\n\t\t\tvar points = [];\n\n\t\t\tfor ( var d = 0; d <= divisions; d ++ ) {\n\n\t\t\t\tpoints.push( this.getPointAt( d / divisions ) );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t// Get total curve arc length\n\n\t\tgetLength: function () {\n\n\t\t\tvar lengths = this.getLengths();\n\t\t\treturn lengths[ lengths.length - 1 ];\n\n\t\t},\n\n\t\t// Get list of cumulative segment lengths\n\n\t\tgetLengths: function ( divisions ) {\n\n\t\t\tif ( ! divisions ) divisions = ( this.__arcLengthDivisions ) ? ( this.__arcLengthDivisions ) : 200;\n\n\t\t\tif ( this.cacheArcLengths\n\t\t\t\t&& ( this.cacheArcLengths.length === divisions + 1 )\n\t\t\t\t&& ! this.needsUpdate ) {\n\n\t\t\t\t//console.log( \"cached\", this.cacheArcLengths );\n\t\t\t\treturn this.cacheArcLengths;\n\n\t\t\t}\n\n\t\t\tthis.needsUpdate = false;\n\n\t\t\tvar cache = [];\n\t\t\tvar current, last = this.getPoint( 0 );\n\t\t\tvar p, sum = 0;\n\n\t\t\tcache.push( 0 );\n\n\t\t\tfor ( p = 1; p <= divisions; p ++ ) {\n\n\t\t\t\tcurrent = this.getPoint ( p / divisions );\n\t\t\t\tsum += current.distanceTo( last );\n\t\t\t\tcache.push( sum );\n\t\t\t\tlast = current;\n\n\t\t\t}\n\n\t\t\tthis.cacheArcLengths = cache;\n\n\t\t\treturn cache; // { sums: cache, sum:sum }; Sum is in the last element.\n\n\t\t},\n\n\t\tupdateArcLengths: function() {\n\n\t\t\tthis.needsUpdate = true;\n\t\t\tthis.getLengths();\n\n\t\t},\n\n\t\t// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant\n\n\t\tgetUtoTmapping: function ( u, distance ) {\n\n\t\t\tvar arcLengths = this.getLengths();\n\n\t\t\tvar i = 0, il = arcLengths.length;\n\n\t\t\tvar targetArcLength; // The targeted u distance value to get\n\n\t\t\tif ( distance ) {\n\n\t\t\t\ttargetArcLength = distance;\n\n\t\t\t} else {\n\n\t\t\t\ttargetArcLength = u * arcLengths[ il - 1 ];\n\n\t\t\t}\n\n\t\t\t//var time = Date.now();\n\n\t\t\t// binary search for the index with largest value smaller than target u distance\n\n\t\t\tvar low = 0, high = il - 1, comparison;\n\n\t\t\twhile ( low <= high ) {\n\n\t\t\t\ti = Math.floor( low + ( high - low ) / 2 ); // less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats\n\n\t\t\t\tcomparison = arcLengths[ i ] - targetArcLength;\n\n\t\t\t\tif ( comparison < 0 ) {\n\n\t\t\t\t\tlow = i + 1;\n\n\t\t\t\t} else if ( comparison > 0 ) {\n\n\t\t\t\t\thigh = i - 1;\n\n\t\t\t\t} else {\n\n\t\t\t\t\thigh = i;\n\t\t\t\t\tbreak;\n\n\t\t\t\t\t// DONE\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\ti = high;\n\n\t\t\t//console.log('b' , i, low, high, Date.now()- time);\n\n\t\t\tif ( arcLengths[ i ] === targetArcLength ) {\n\n\t\t\t\tvar t = i / ( il - 1 );\n\t\t\t\treturn t;\n\n\t\t\t}\n\n\t\t\t// we could get finer grain at lengths, or use simple interpolation between two points\n\n\t\t\tvar lengthBefore = arcLengths[ i ];\n\t\t\tvar lengthAfter = arcLengths[ i + 1 ];\n\n\t\t\tvar segmentLength = lengthAfter - lengthBefore;\n\n\t\t\t// determine where we are between the 'before' and 'after' points\n\n\t\t\tvar segmentFraction = ( targetArcLength - lengthBefore ) / segmentLength;\n\n\t\t\t// add that fractional amount to t\n\n\t\t\tvar t = ( i + segmentFraction ) / ( il - 1 );\n\n\t\t\treturn t;\n\n\t\t},\n\n\t\t// Returns a unit vector tangent at t\n\t\t// In case any sub curve does not implement its tangent derivation,\n\t\t// 2 points a small delta apart will be used to find its gradient\n\t\t// which seems to give a reasonable approximation\n\n\t\tgetTangent: function( t ) {\n\n\t\t\tvar delta = 0.0001;\n\t\t\tvar t1 = t - delta;\n\t\t\tvar t2 = t + delta;\n\n\t\t\t// Capping in case of danger\n\n\t\t\tif ( t1 < 0 ) t1 = 0;\n\t\t\tif ( t2 > 1 ) t2 = 1;\n\n\t\t\tvar pt1 = this.getPoint( t1 );\n\t\t\tvar pt2 = this.getPoint( t2 );\n\n\t\t\tvar vec = pt2.clone().sub( pt1 );\n\t\t\treturn vec.normalize();\n\n\t\t},\n\n\t\tgetTangentAt: function ( u ) {\n\n\t\t\tvar t = this.getUtoTmapping( u );\n\t\t\treturn this.getTangent( t );\n\n\t\t},\n\n\t\tcomputeFrenetFrames: function ( segments, closed ) {\n\n\t\t\t// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf\n\n\t\t\tvar normal = new Vector3();\n\n\t\t\tvar tangents = [];\n\t\t\tvar normals = [];\n\t\t\tvar binormals = [];\n\n\t\t\tvar vec = new Vector3();\n\t\t\tvar mat = new Matrix4();\n\n\t\t\tvar i, u, theta;\n\n\t\t\t// compute the tangent vectors for each segment on the curve\n\n\t\t\tfor ( i = 0; i <= segments; i ++ ) {\n\n\t\t\t\tu = i / segments;\n\n\t\t\t\ttangents[ i ] = this.getTangentAt( u );\n\t\t\t\ttangents[ i ].normalize();\n\n\t\t\t}\n\n\t\t\t// select an initial normal vector perpendicular to the first tangent vector,\n\t\t\t// and in the direction of the minimum tangent xyz component\n\n\t\t\tnormals[ 0 ] = new Vector3();\n\t\t\tbinormals[ 0 ] = new Vector3();\n\t\t\tvar min = Number.MAX_VALUE;\n\t\t\tvar tx = Math.abs( tangents[ 0 ].x );\n\t\t\tvar ty = Math.abs( tangents[ 0 ].y );\n\t\t\tvar tz = Math.abs( tangents[ 0 ].z );\n\n\t\t\tif ( tx <= min ) {\n\n\t\t\t\tmin = tx;\n\t\t\t\tnormal.set( 1, 0, 0 );\n\n\t\t\t}\n\n\t\t\tif ( ty <= min ) {\n\n\t\t\t\tmin = ty;\n\t\t\t\tnormal.set( 0, 1, 0 );\n\n\t\t\t}\n\n\t\t\tif ( tz <= min ) {\n\n\t\t\t\tnormal.set( 0, 0, 1 );\n\n\t\t\t}\n\n\t\t\tvec.crossVectors( tangents[ 0 ], normal ).normalize();\n\n\t\t\tnormals[ 0 ].crossVectors( tangents[ 0 ], vec );\n\t\t\tbinormals[ 0 ].crossVectors( tangents[ 0 ], normals[ 0 ] );\n\n\n\t\t\t// compute the slowly-varying normal and binormal vectors for each segment on the curve\n\n\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\tnormals[ i ] = normals[ i - 1 ].clone();\n\n\t\t\t\tbinormals[ i ] = binormals[ i - 1 ].clone();\n\n\t\t\t\tvec.crossVectors( tangents[ i - 1 ], tangents[ i ] );\n\n\t\t\t\tif ( vec.length() > Number.EPSILON ) {\n\n\t\t\t\t\tvec.normalize();\n\n\t\t\t\t\ttheta = Math.acos( _Math.clamp( tangents[ i - 1 ].dot( tangents[ i ] ), - 1, 1 ) ); // clamp for floating pt errors\n\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( vec, theta ) );\n\n\t\t\t\t}\n\n\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t}\n\n\t\t\t// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same\n\n\t\t\tif ( closed === true ) {\n\n\t\t\t\ttheta = Math.acos( _Math.clamp( normals[ 0 ].dot( normals[ segments ] ), - 1, 1 ) );\n\t\t\t\ttheta /= segments;\n\n\t\t\t\tif ( tangents[ 0 ].dot( vec.crossVectors( normals[ 0 ], normals[ segments ] ) ) > 0 ) {\n\n\t\t\t\t\ttheta = - theta;\n\n\t\t\t\t}\n\n\t\t\t\tfor ( i = 1; i <= segments; i ++ ) {\n\n\t\t\t\t\t// twist a little...\n\t\t\t\t\tnormals[ i ].applyMatrix4( mat.makeRotationAxis( tangents[ i ], theta * i ) );\n\t\t\t\t\tbinormals[ i ].crossVectors( tangents[ i ], normals[ i ] );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\treturn {\n\t\t\t\ttangents: tangents,\n\t\t\t\tnormals: normals,\n\t\t\t\tbinormals: binormals\n\t\t\t};\n\n\t\t}\n\n\t};\n\n\t// TODO: Transformation for Curves?\n\n\t/**************************************************************\n\t *\t3D Curves\n\t **************************************************************/\n\n\t// A Factory method for creating new curve subclasses\n\n\tCurve.create = function ( constructor, getPointFunc ) {\n\n\t\tconstructor.prototype = Object.create( Curve.prototype );\n\t\tconstructor.prototype.constructor = constructor;\n\t\tconstructor.prototype.getPoint = getPointFunc;\n\n\t\treturn constructor;\n\n\t};\n\n\t/**************************************************************\n\t *\tLine\n\t **************************************************************/\n\n\tfunction LineCurve( v1, v2 ) {\n\n\t\tthis.v1 = v1;\n\t\tthis.v2 = v2;\n\n\t}\n\n\tLineCurve.prototype = Object.create( Curve.prototype );\n\tLineCurve.prototype.constructor = LineCurve;\n\n\tLineCurve.prototype.isLineCurve = true;\n\n\tLineCurve.prototype.getPoint = function ( t ) {\n\n\t\tif ( t === 1 ) {\n\n\t\t\treturn this.v2.clone();\n\n\t\t}\n\n\t\tvar point = this.v2.clone().sub( this.v1 );\n\t\tpoint.multiplyScalar( t ).add( this.v1 );\n\n\t\treturn point;\n\n\t};\n\n\t// Line curve is linear, so we can overwrite default getPointAt\n\n\tLineCurve.prototype.getPointAt = function ( u ) {\n\n\t\treturn this.getPoint( u );\n\n\t};\n\n\tLineCurve.prototype.getTangent = function( t ) {\n\n\t\tvar tangent = this.v2.clone().sub( this.v1 );\n\n\t\treturn tangent.normalize();\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t *\n\t **/\n\n\t/**************************************************************\n\t *\tCurved Path - a curve path is simply a array of connected\n\t * curves, but retains the api of a curve\n\t **************************************************************/\n\n\tfunction CurvePath() {\n\n\t\tthis.curves = [];\n\n\t\tthis.autoClose = false; // Automatically closes the path\n\n\t}\n\n\tCurvePath.prototype = Object.assign( Object.create( Curve.prototype ), {\n\n\t\tconstructor: CurvePath,\n\n\t\tadd: function ( curve ) {\n\n\t\t\tthis.curves.push( curve );\n\n\t\t},\n\n\t\tclosePath: function () {\n\n\t\t\t// Add a line curve if start and end of lines are not connected\n\t\t\tvar startPoint = this.curves[ 0 ].getPoint( 0 );\n\t\t\tvar endPoint = this.curves[ this.curves.length - 1 ].getPoint( 1 );\n\n\t\t\tif ( ! startPoint.equals( endPoint ) ) {\n\n\t\t\t\tthis.curves.push( new LineCurve( endPoint, startPoint ) );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// To get accurate point with reference to\n\t\t// entire path distance at time t,\n\t\t// following has to be done:\n\n\t\t// 1. Length of each sub path have to be known\n\t\t// 2. Locate and identify type of curve\n\t\t// 3. Get t for the curve\n\t\t// 4. Return curve.getPointAt(t')\n\n\t\tgetPoint: function ( t ) {\n\n\t\t\tvar d = t * this.getLength();\n\t\t\tvar curveLengths = this.getCurveLengths();\n\t\t\tvar i = 0;\n\n\t\t\t// To think about boundaries points.\n\n\t\t\twhile ( i < curveLengths.length ) {\n\n\t\t\t\tif ( curveLengths[ i ] >= d ) {\n\n\t\t\t\t\tvar diff = curveLengths[ i ] - d;\n\t\t\t\t\tvar curve = this.curves[ i ];\n\n\t\t\t\t\tvar segmentLength = curve.getLength();\n\t\t\t\t\tvar u = segmentLength === 0 ? 0 : 1 - diff / segmentLength;\n\n\t\t\t\t\treturn curve.getPointAt( u );\n\n\t\t\t\t}\n\n\t\t\t\ti ++;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t\t// loop where sum != 0, sum > d , sum+1 1 && !points[ points.length - 1 ].equals( points[ 0 ] ) ) {\n\n\t\t\t\tpoints.push( points[ 0 ] );\n\n\t\t\t}\n\n\t\t\treturn points;\n\n\t\t},\n\n\t\t/**************************************************************\n\t\t *\tCreate Geometries Helpers\n\t\t **************************************************************/\n\n\t\t/// Generate geometry from path points (for Line or Points objects)\n\n\t\tcreatePointsGeometry: function ( divisions ) {\n\n\t\t\tvar pts = this.getPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\t// Generate geometry from equidistant sampling along the path\n\n\t\tcreateSpacedPointsGeometry: function ( divisions ) {\n\n\t\t\tvar pts = this.getSpacedPoints( divisions );\n\t\t\treturn this.createGeometry( pts );\n\n\t\t},\n\n\t\tcreateGeometry: function ( points ) {\n\n\t\t\tvar geometry = new Geometry();\n\n\t\t\tfor ( var i = 0, l = points.length; i < l; i ++ ) {\n\n\t\t\t\tvar point = points[ i ];\n\t\t\t\tgeometry.vertices.push( new Vector3( point.x, point.y, point.z || 0 ) );\n\n\t\t\t}\n\n\t\t\treturn geometry;\n\n\t\t}\n\n\t} );\n\n\t/**************************************************************\n\t *\tEllipse curve\n\t **************************************************************/\n\n\tfunction EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\tthis.aX = aX;\n\t\tthis.aY = aY;\n\n\t\tthis.xRadius = xRadius;\n\t\tthis.yRadius = yRadius;\n\n\t\tthis.aStartAngle = aStartAngle;\n\t\tthis.aEndAngle = aEndAngle;\n\n\t\tthis.aClockwise = aClockwise;\n\n\t\tthis.aRotation = aRotation || 0;\n\n\t}\n\n\tEllipseCurve.prototype = Object.create( Curve.prototype );\n\tEllipseCurve.prototype.constructor = EllipseCurve;\n\n\tEllipseCurve.prototype.isEllipseCurve = true;\n\n\tEllipseCurve.prototype.getPoint = function( t ) {\n\n\t\tvar twoPi = Math.PI * 2;\n\t\tvar deltaAngle = this.aEndAngle - this.aStartAngle;\n\t\tvar samePoints = Math.abs( deltaAngle ) < Number.EPSILON;\n\n\t\t// ensures that deltaAngle is 0 .. 2 PI\n\t\twhile ( deltaAngle < 0 ) deltaAngle += twoPi;\n\t\twhile ( deltaAngle > twoPi ) deltaAngle -= twoPi;\n\n\t\tif ( deltaAngle < Number.EPSILON ) {\n\n\t\t\tif ( samePoints ) {\n\n\t\t\t\tdeltaAngle = 0;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tif ( this.aClockwise === true && ! samePoints ) {\n\n\t\t\tif ( deltaAngle === twoPi ) {\n\n\t\t\t\tdeltaAngle = - twoPi;\n\n\t\t\t} else {\n\n\t\t\t\tdeltaAngle = deltaAngle - twoPi;\n\n\t\t\t}\n\n\t\t}\n\n\t\tvar angle = this.aStartAngle + t * deltaAngle;\n\t\tvar x = this.aX + this.xRadius * Math.cos( angle );\n\t\tvar y = this.aY + this.yRadius * Math.sin( angle );\n\n\t\tif ( this.aRotation !== 0 ) {\n\n\t\t\tvar cos = Math.cos( this.aRotation );\n\t\t\tvar sin = Math.sin( this.aRotation );\n\n\t\t\tvar tx = x - this.aX;\n\t\t\tvar ty = y - this.aY;\n\n\t\t\t// Rotate the point about the center of the ellipse.\n\t\t\tx = tx * cos - ty * sin + this.aX;\n\t\t\ty = tx * sin + ty * cos + this.aY;\n\n\t\t}\n\n\t\treturn new Vector2( x, y );\n\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t */\n\n\tvar CurveUtils = {\n\n\t\ttangentQuadraticBezier: function ( t, p0, p1, p2 ) {\n\n\t\t\treturn 2 * ( 1 - t ) * ( p1 - p0 ) + 2 * t * ( p2 - p1 );\n\n\t\t},\n\n\t\t// Puay Bing, thanks for helping with this derivative!\n\n\t\ttangentCubicBezier: function ( t, p0, p1, p2, p3 ) {\n\n\t\t\treturn - 3 * p0 * ( 1 - t ) * ( 1 - t ) +\n\t\t\t\t3 * p1 * ( 1 - t ) * ( 1 - t ) - 6 * t * p1 * ( 1 - t ) +\n\t\t\t\t6 * t * p2 * ( 1 - t ) - 3 * t * t * p2 +\n\t\t\t\t3 * t * t * p3;\n\n\t\t},\n\n\t\ttangentSpline: function ( t, p0, p1, p2, p3 ) {\n\n\t\t\t// To check if my formulas are correct\n\n\t\t\tvar h00 = 6 * t * t - 6 * t; \t// derived from 2t^3 − 3t^2 + 1\n\t\t\tvar h10 = 3 * t * t - 4 * t + 1; // t^3 − 2t^2 + t\n\t\t\tvar h01 = - 6 * t * t + 6 * t; \t// − 2t3 + 3t2\n\t\t\tvar h11 = 3 * t * t - 2 * t;\t// t3 − t2\n\n\t\t\treturn h00 + h10 + h01 + h11;\n\n\t\t},\n\n\t\t// Catmull-Rom\n\n\t\tinterpolate: function( p0, p1, p2, p3, t ) {\n\n\t\t\tvar v0 = ( p2 - p0 ) * 0.5;\n\t\t\tvar v1 = ( p3 - p1 ) * 0.5;\n\t\t\tvar t2 = t * t;\n\t\t\tvar t3 = t * t2;\n\t\t\treturn ( 2 * p1 - 2 * p2 + v0 + v1 ) * t3 + ( - 3 * p1 + 3 * p2 - 2 * v0 - v1 ) * t2 + v0 * t + p1;\n\n\t\t}\n\n\t};\n\n\t/**************************************************************\n\t *\tSpline curve\n\t **************************************************************/\n\n\tfunction SplineCurve( points /* array of Vector2 */ ) {\n\n\t\tthis.points = ( points === undefined ) ? [] : points;\n\n\t}\n\n\tSplineCurve.prototype = Object.create( Curve.prototype );\n\tSplineCurve.prototype.constructor = SplineCurve;\n\n\tSplineCurve.prototype.isSplineCurve = true;\n\n\tSplineCurve.prototype.getPoint = function ( t ) {\n\n\t\tvar points = this.points;\n\t\tvar point = ( points.length - 1 ) * t;\n\n\t\tvar intPoint = Math.floor( point );\n\t\tvar weight = point - intPoint;\n\n\t\tvar point0 = points[ intPoint === 0 ? intPoint : intPoint - 1 ];\n\t\tvar point1 = points[ intPoint ];\n\t\tvar point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];\n\t\tvar point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];\n\n\t\tvar interpolate = CurveUtils.interpolate;\n\n\t\treturn new Vector2(\n\t\t\tinterpolate( point0.x, point1.x, point2.x, point3.x, weight ),\n\t\t\tinterpolate( point0.y, point1.y, point2.y, point3.y, weight )\n\t\t);\n\n\t};\n\n\t/**************************************************************\n\t *\tCubic Bezier curve\n\t **************************************************************/\n\n\tfunction CubicBezierCurve( v0, v1, v2, v3 ) {\n\n\t\tthis.v0 = v0;\n\t\tthis.v1 = v1;\n\t\tthis.v2 = v2;\n\t\tthis.v3 = v3;\n\n\t}\n\n\tCubicBezierCurve.prototype = Object.create( Curve.prototype );\n\tCubicBezierCurve.prototype.constructor = CubicBezierCurve;\n\n\tCubicBezierCurve.prototype.getPoint = function ( t ) {\n\n\t\tvar b3 = ShapeUtils.b3;\n\n\t\treturn new Vector2(\n\t\t\tb3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),\n\t\t\tb3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y )\n\t\t);\n\n\t};\n\n\tCubicBezierCurve.prototype.getTangent = function( t ) {\n\n\t\tvar tangentCubicBezier = CurveUtils.tangentCubicBezier;\n\n\t\treturn new Vector2(\n\t\t\ttangentCubicBezier( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),\n\t\t\ttangentCubicBezier( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y )\n\t\t).normalize();\n\n\t};\n\n\t/**************************************************************\n\t *\tQuadratic Bezier curve\n\t **************************************************************/\n\n\n\tfunction QuadraticBezierCurve( v0, v1, v2 ) {\n\n\t\tthis.v0 = v0;\n\t\tthis.v1 = v1;\n\t\tthis.v2 = v2;\n\n\t}\n\n\tQuadraticBezierCurve.prototype = Object.create( Curve.prototype );\n\tQuadraticBezierCurve.prototype.constructor = QuadraticBezierCurve;\n\n\n\tQuadraticBezierCurve.prototype.getPoint = function ( t ) {\n\n\t\tvar b2 = ShapeUtils.b2;\n\n\t\treturn new Vector2(\n\t\t\tb2( t, this.v0.x, this.v1.x, this.v2.x ),\n\t\t\tb2( t, this.v0.y, this.v1.y, this.v2.y )\n\t\t);\n\n\t};\n\n\n\tQuadraticBezierCurve.prototype.getTangent = function( t ) {\n\n\t\tvar tangentQuadraticBezier = CurveUtils.tangentQuadraticBezier;\n\n\t\treturn new Vector2(\n\t\t\ttangentQuadraticBezier( t, this.v0.x, this.v1.x, this.v2.x ),\n\t\t\ttangentQuadraticBezier( t, this.v0.y, this.v1.y, this.v2.y )\n\t\t).normalize();\n\n\t};\n\n\tvar PathPrototype = Object.assign( Object.create( CurvePath.prototype ), {\n\n\t\tfromPoints: function ( vectors ) {\n\n\t\t\tthis.moveTo( vectors[ 0 ].x, vectors[ 0 ].y );\n\n\t\t\tfor ( var i = 1, l = vectors.length; i < l; i ++ ) {\n\n\t\t\t\tthis.lineTo( vectors[ i ].x, vectors[ i ].y );\n\n\t\t\t}\n\n\t\t},\n\n\t\tmoveTo: function ( x, y ) {\n\n\t\t\tthis.currentPoint.set( x, y ); // TODO consider referencing vectors instead of copying?\n\n\t\t},\n\n\t\tlineTo: function ( x, y ) {\n\n\t\t\tvar curve = new LineCurve( this.currentPoint.clone(), new Vector2( x, y ) );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( x, y );\n\n\t\t},\n\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\n\t\t\tvar curve = new QuadraticBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCPx, aCPy ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\n\t\t\tvar curve = new CubicBezierCurve(\n\t\t\t\tthis.currentPoint.clone(),\n\t\t\t\tnew Vector2( aCP1x, aCP1y ),\n\t\t\t\tnew Vector2( aCP2x, aCP2y ),\n\t\t\t\tnew Vector2( aX, aY )\n\t\t\t);\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.set( aX, aY );\n\n\t\t},\n\n\t\tsplineThru: function ( pts /*Array of Vector*/ ) {\n\n\t\t\tvar npts = [ this.currentPoint.clone() ].concat( pts );\n\n\t\t\tvar curve = new SplineCurve( npts );\n\t\t\tthis.curves.push( curve );\n\n\t\t\tthis.currentPoint.copy( pts[ pts.length - 1 ] );\n\n\t\t},\n\n\t\tarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absarc( aX + x0, aY + y0, aRadius,\n\t\t\t\taStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tabsarc: function ( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\t\tthis.absellipse( aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t\t},\n\n\t\tellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar x0 = this.currentPoint.x;\n\t\t\tvar y0 = this.currentPoint.y;\n\n\t\t\tthis.absellipse( aX + x0, aY + y0, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t},\n\n\t\tabsellipse: function ( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation ) {\n\n\t\t\tvar curve = new EllipseCurve( aX, aY, xRadius, yRadius, aStartAngle, aEndAngle, aClockwise, aRotation );\n\n\t\t\tif ( this.curves.length > 0 ) {\n\n\t\t\t\t// if a previous curve is present, attempt to join\n\t\t\t\tvar firstPoint = curve.getPoint( 0 );\n\n\t\t\t\tif ( ! firstPoint.equals( this.currentPoint ) ) {\n\n\t\t\t\t\tthis.lineTo( firstPoint.x, firstPoint.y );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.curves.push( curve );\n\n\t\t\tvar lastPoint = curve.getPoint( 1 );\n\t\t\tthis.currentPoint.copy( lastPoint );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Defines a 2d shape plane using paths.\n\t **/\n\n\t// STEP 1 Create a path.\n\t// STEP 2 Turn path into shape.\n\t// STEP 3 ExtrudeGeometry takes in Shape/Shapes\n\t// STEP 3a - Extract points from each shape, turn to vertices\n\t// STEP 3b - Triangulate each shape, add faces.\n\n\tfunction Shape() {\n\n\t\tPath.apply( this, arguments );\n\n\t\tthis.holes = [];\n\n\t}\n\n\tShape.prototype = Object.assign( Object.create( PathPrototype ), {\n\n\t\tconstructor: Shape,\n\n\t\tgetPointsHoles: function ( divisions ) {\n\n\t\t\tvar holesPts = [];\n\n\t\t\tfor ( var i = 0, l = this.holes.length; i < l; i ++ ) {\n\n\t\t\t\tholesPts[ i ] = this.holes[ i ].getPoints( divisions );\n\n\t\t\t}\n\n\t\t\treturn holesPts;\n\n\t\t},\n\n\t\t// Get points of shape and holes (keypoints based on segments parameter)\n\n\t\textractAllPoints: function ( divisions ) {\n\n\t\t\treturn {\n\n\t\t\t\tshape: this.getPoints( divisions ),\n\t\t\t\tholes: this.getPointsHoles( divisions )\n\n\t\t\t};\n\n\t\t},\n\n\t\textractPoints: function ( divisions ) {\n\n\t\t\treturn this.extractAllPoints( divisions );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * Creates free form 2d path using series of points, lines or curves.\n\t *\n\t **/\n\n\tfunction Path( points ) {\n\n\t\tCurvePath.call( this );\n\t\tthis.currentPoint = new Vector2();\n\n\t\tif ( points ) {\n\n\t\t\tthis.fromPoints( points );\n\n\t\t}\n\n\t}\n\n\tPath.prototype = PathPrototype;\n\tPathPrototype.constructor = Path;\n\n\n\t// minimal class for proxing functions to Path. Replaces old \"extractSubpaths()\"\n\tfunction ShapePath() {\n\t\tthis.subPaths = [];\n\t\tthis.currentPath = null;\n\t}\n\n\tShapePath.prototype = {\n\t\tmoveTo: function ( x, y ) {\n\t\t\tthis.currentPath = new Path();\n\t\t\tthis.subPaths.push(this.currentPath);\n\t\t\tthis.currentPath.moveTo( x, y );\n\t\t},\n\t\tlineTo: function ( x, y ) {\n\t\t\tthis.currentPath.lineTo( x, y );\n\t\t},\n\t\tquadraticCurveTo: function ( aCPx, aCPy, aX, aY ) {\n\t\t\tthis.currentPath.quadraticCurveTo( aCPx, aCPy, aX, aY );\n\t\t},\n\t\tbezierCurveTo: function ( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY ) {\n\t\t\tthis.currentPath.bezierCurveTo( aCP1x, aCP1y, aCP2x, aCP2y, aX, aY );\n\t\t},\n\t\tsplineThru: function ( pts ) {\n\t\t\tthis.currentPath.splineThru( pts );\n\t\t},\n\n\t\ttoShapes: function ( isCCW, noHoles ) {\n\n\t\t\tfunction toShapesNoHoles( inSubpaths ) {\n\n\t\t\t\tvar shapes = [];\n\n\t\t\t\tfor ( var i = 0, l = inSubpaths.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar tmpPath = inSubpaths[ i ];\n\n\t\t\t\t\tvar tmpShape = new Shape();\n\t\t\t\t\ttmpShape.curves = tmpPath.curves;\n\n\t\t\t\t\tshapes.push( tmpShape );\n\n\t\t\t\t}\n\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tfunction isPointInsidePolygon( inPt, inPolygon ) {\n\n\t\t\t\tvar polyLen = inPolygon.length;\n\n\t\t\t\t// inPt on polygon contour => immediate success or\n\t\t\t\t// toggling of inside/outside at every single! intersection point of an edge\n\t\t\t\t// with the horizontal line through inPt, left of inPt\n\t\t\t\t// not counting lowerY endpoints of edges and whole edges on that line\n\t\t\t\tvar inside = false;\n\t\t\t\tfor ( var p = polyLen - 1, q = 0; q < polyLen; p = q ++ ) {\n\n\t\t\t\t\tvar edgeLowPt = inPolygon[ p ];\n\t\t\t\t\tvar edgeHighPt = inPolygon[ q ];\n\n\t\t\t\t\tvar edgeDx = edgeHighPt.x - edgeLowPt.x;\n\t\t\t\t\tvar edgeDy = edgeHighPt.y - edgeLowPt.y;\n\n\t\t\t\t\tif ( Math.abs( edgeDy ) > Number.EPSILON ) {\n\n\t\t\t\t\t\t// not parallel\n\t\t\t\t\t\tif ( edgeDy < 0 ) {\n\n\t\t\t\t\t\t\tedgeLowPt = inPolygon[ q ]; edgeDx = - edgeDx;\n\t\t\t\t\t\t\tedgeHighPt = inPolygon[ p ]; edgeDy = - edgeDy;\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( ( inPt.y < edgeLowPt.y ) || ( inPt.y > edgeHighPt.y ) ) \t\tcontinue;\n\n\t\t\t\t\t\tif ( inPt.y === edgeLowPt.y ) {\n\n\t\t\t\t\t\t\tif ( inPt.x === edgeLowPt.x )\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\t// continue;\t\t\t\t// no intersection or edgeLowPt => doesn't count !!!\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tvar perpEdge = edgeDy * ( inPt.x - edgeLowPt.x ) - edgeDx * ( inPt.y - edgeLowPt.y );\n\t\t\t\t\t\t\tif ( perpEdge === 0 )\t\t\t\treturn\ttrue;\t\t// inPt is on contour ?\n\t\t\t\t\t\t\tif ( perpEdge < 0 ) \t\t\t\tcontinue;\n\t\t\t\t\t\t\tinside = ! inside;\t\t// true intersection left of inPt\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// parallel or collinear\n\t\t\t\t\t\tif ( inPt.y !== edgeLowPt.y ) \t\tcontinue;\t\t\t// parallel\n\t\t\t\t\t\t// edge lies on the same horizontal line as inPt\n\t\t\t\t\t\tif ( ( ( edgeHighPt.x <= inPt.x ) && ( inPt.x <= edgeLowPt.x ) ) ||\n\t\t\t\t\t\t\t ( ( edgeLowPt.x <= inPt.x ) && ( inPt.x <= edgeHighPt.x ) ) )\t\treturn\ttrue;\t// inPt: Point on contour !\n\t\t\t\t\t\t// continue;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn\tinside;\n\n\t\t\t}\n\n\t\t\tvar isClockWise = ShapeUtils.isClockWise;\n\n\t\t\tvar subPaths = this.subPaths;\n\t\t\tif ( subPaths.length === 0 ) return [];\n\n\t\t\tif ( noHoles === true )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tvar solid, tmpPath, tmpShape, shapes = [];\n\n\t\t\tif ( subPaths.length === 1 ) {\n\n\t\t\t\ttmpPath = subPaths[ 0 ];\n\t\t\t\ttmpShape = new Shape();\n\t\t\t\ttmpShape.curves = tmpPath.curves;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\treturn shapes;\n\n\t\t\t}\n\n\t\t\tvar holesFirst = ! isClockWise( subPaths[ 0 ].getPoints() );\n\t\t\tholesFirst = isCCW ? ! holesFirst : holesFirst;\n\n\t\t\t// console.log(\"Holes first\", holesFirst);\n\n\t\t\tvar betterShapeHoles = [];\n\t\t\tvar newShapes = [];\n\t\t\tvar newShapeHoles = [];\n\t\t\tvar mainIdx = 0;\n\t\t\tvar tmpPoints;\n\n\t\t\tnewShapes[ mainIdx ] = undefined;\n\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\tfor ( var i = 0, l = subPaths.length; i < l; i ++ ) {\n\n\t\t\t\ttmpPath = subPaths[ i ];\n\t\t\t\ttmpPoints = tmpPath.getPoints();\n\t\t\t\tsolid = isClockWise( tmpPoints );\n\t\t\t\tsolid = isCCW ? ! solid : solid;\n\n\t\t\t\tif ( solid ) {\n\n\t\t\t\t\tif ( ( ! holesFirst ) && ( newShapes[ mainIdx ] ) )\tmainIdx ++;\n\n\t\t\t\t\tnewShapes[ mainIdx ] = { s: new Shape(), p: tmpPoints };\n\t\t\t\t\tnewShapes[ mainIdx ].s.curves = tmpPath.curves;\n\n\t\t\t\t\tif ( holesFirst )\tmainIdx ++;\n\t\t\t\t\tnewShapeHoles[ mainIdx ] = [];\n\n\t\t\t\t\t//console.log('cw', i);\n\n\t\t\t\t} else {\n\n\t\t\t\t\tnewShapeHoles[ mainIdx ].push( { h: tmpPath, p: tmpPoints[ 0 ] } );\n\n\t\t\t\t\t//console.log('ccw', i);\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// only Holes? -> probably all Shapes with wrong orientation\n\t\t\tif ( ! newShapes[ 0 ] )\treturn\ttoShapesNoHoles( subPaths );\n\n\n\t\t\tif ( newShapes.length > 1 ) {\n\n\t\t\t\tvar ambiguous = false;\n\t\t\t\tvar toChange = [];\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tbetterShapeHoles[ sIdx ] = [];\n\n\t\t\t\t}\n\n\t\t\t\tfor ( var sIdx = 0, sLen = newShapes.length; sIdx < sLen; sIdx ++ ) {\n\n\t\t\t\t\tvar sho = newShapeHoles[ sIdx ];\n\n\t\t\t\t\tfor ( var hIdx = 0; hIdx < sho.length; hIdx ++ ) {\n\n\t\t\t\t\t\tvar ho = sho[ hIdx ];\n\t\t\t\t\t\tvar hole_unassigned = true;\n\n\t\t\t\t\t\tfor ( var s2Idx = 0; s2Idx < newShapes.length; s2Idx ++ ) {\n\n\t\t\t\t\t\t\tif ( isPointInsidePolygon( ho.p, newShapes[ s2Idx ].p ) ) {\n\n\t\t\t\t\t\t\t\tif ( sIdx !== s2Idx )\ttoChange.push( { froms: sIdx, tos: s2Idx, hole: hIdx } );\n\t\t\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\t\t\thole_unassigned = false;\n\t\t\t\t\t\t\t\t\tbetterShapeHoles[ s2Idx ].push( ho );\n\n\t\t\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t\t\tambiguous = true;\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( hole_unassigned ) {\n\n\t\t\t\t\t\t\tbetterShapeHoles[ sIdx ].push( ho );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\t\t\t\t// console.log(\"ambiguous: \", ambiguous);\n\t\t\t\tif ( toChange.length > 0 ) {\n\n\t\t\t\t\t// console.log(\"to change: \", toChange);\n\t\t\t\t\tif ( ! ambiguous )\tnewShapeHoles = betterShapeHoles;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar tmpHoles;\n\n\t\t\tfor ( var i = 0, il = newShapes.length; i < il; i ++ ) {\n\n\t\t\t\ttmpShape = newShapes[ i ].s;\n\t\t\t\tshapes.push( tmpShape );\n\t\t\t\ttmpHoles = newShapeHoles[ i ];\n\n\t\t\t\tfor ( var j = 0, jl = tmpHoles.length; j < jl; j ++ ) {\n\n\t\t\t\t\ttmpShape.holes.push( tmpHoles[ j ].h );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t//console.log(\"shape\", shapes);\n\n\t\t\treturn shapes;\n\n\t\t}\n\t};\n\n\t/**\n\t * @author zz85 / http://www.lab4games.net/zz85/blog\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Font( data ) {\n\n\t\tthis.data = data;\n\n\t}\n\n\tObject.assign( Font.prototype, {\n\n\t\tisFont: true,\n\n\t\tgenerateShapes: function ( text, size, divisions ) {\n\n\t\t\tfunction createPaths( text ) {\n\n\t\t\t\tvar chars = String( text ).split( '' );\n\t\t\t\tvar scale = size / data.resolution;\n\t\t\t\tvar offset = 0;\n\n\t\t\t\tvar paths = [];\n\n\t\t\t\tfor ( var i = 0; i < chars.length; i ++ ) {\n\n\t\t\t\t\tvar ret = createPath( chars[ i ], scale, offset );\n\t\t\t\t\toffset += ret.offset;\n\n\t\t\t\t\tpaths.push( ret.path );\n\n\t\t\t\t}\n\n\t\t\t\treturn paths;\n\n\t\t\t}\n\n\t\t\tfunction createPath( c, scale, offset ) {\n\n\t\t\t\tvar glyph = data.glyphs[ c ] || data.glyphs[ '?' ];\n\n\t\t\t\tif ( ! glyph ) return;\n\n\t\t\t\tvar path = new ShapePath();\n\n\t\t\t\tvar pts = [], b2 = ShapeUtils.b2, b3 = ShapeUtils.b3;\n\t\t\t\tvar x, y, cpx, cpy, cpx0, cpy0, cpx1, cpy1, cpx2, cpy2, laste;\n\n\t\t\t\tif ( glyph.o ) {\n\n\t\t\t\t\tvar outline = glyph._cachedOutline || ( glyph._cachedOutline = glyph.o.split( ' ' ) );\n\n\t\t\t\t\tfor ( var i = 0, l = outline.length; i < l; ) {\n\n\t\t\t\t\t\tvar action = outline[ i ++ ];\n\n\t\t\t\t\t\tswitch ( action ) {\n\n\t\t\t\t\t\t\tcase 'm': // moveTo\n\n\t\t\t\t\t\t\t\tx = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\ty = outline[ i ++ ] * scale;\n\n\t\t\t\t\t\t\t\tpath.moveTo( x, y );\n\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\tcase 'l': // lineTo\n\n\t\t\t\t\t\t\t\tx = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\ty = outline[ i ++ ] * scale;\n\n\t\t\t\t\t\t\t\tpath.lineTo( x, y );\n\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\tcase 'q': // quadraticCurveTo\n\n\t\t\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\tcpy = outline[ i ++ ] * scale;\n\t\t\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale;\n\n\t\t\t\t\t\t\t\tpath.quadraticCurveTo( cpx1, cpy1, cpx, cpy );\n\n\t\t\t\t\t\t\t\tlaste = pts[ pts.length - 1 ];\n\n\t\t\t\t\t\t\t\tif ( laste ) {\n\n\t\t\t\t\t\t\t\t\tcpx0 = laste.x;\n\t\t\t\t\t\t\t\t\tcpy0 = laste.y;\n\n\t\t\t\t\t\t\t\t\tfor ( var i2 = 1; i2 <= divisions; i2 ++ ) {\n\n\t\t\t\t\t\t\t\t\t\tvar t = i2 / divisions;\n\t\t\t\t\t\t\t\t\t\tb2( t, cpx0, cpx1, cpx );\n\t\t\t\t\t\t\t\t\t\tb2( t, cpy0, cpy1, cpy );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\tcase 'b': // bezierCurveTo\n\n\t\t\t\t\t\t\t\tcpx = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\tcpy = outline[ i ++ ] * scale;\n\t\t\t\t\t\t\t\tcpx1 = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\tcpy1 = outline[ i ++ ] * scale;\n\t\t\t\t\t\t\t\tcpx2 = outline[ i ++ ] * scale + offset;\n\t\t\t\t\t\t\t\tcpy2 = outline[ i ++ ] * scale;\n\n\t\t\t\t\t\t\t\tpath.bezierCurveTo( cpx1, cpy1, cpx2, cpy2, cpx, cpy );\n\n\t\t\t\t\t\t\t\tlaste = pts[ pts.length - 1 ];\n\n\t\t\t\t\t\t\t\tif ( laste ) {\n\n\t\t\t\t\t\t\t\t\tcpx0 = laste.x;\n\t\t\t\t\t\t\t\t\tcpy0 = laste.y;\n\n\t\t\t\t\t\t\t\t\tfor ( var i2 = 1; i2 <= divisions; i2 ++ ) {\n\n\t\t\t\t\t\t\t\t\t\tvar t = i2 / divisions;\n\t\t\t\t\t\t\t\t\t\tb3( t, cpx0, cpx1, cpx2, cpx );\n\t\t\t\t\t\t\t\t\t\tb3( t, cpy0, cpy1, cpy2, cpy );\n\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\treturn { offset: glyph.ha * scale, path: path };\n\n\t\t\t}\n\n\t\t\t//\n\n\t\t\tif ( size === undefined ) size = 100;\n\t\t\tif ( divisions === undefined ) divisions = 4;\n\n\t\t\tvar data = this.data;\n\n\t\t\tvar paths = createPaths( text );\n\t\t\tvar shapes = [];\n\n\t\t\tfor ( var p = 0, pl = paths.length; p < pl; p ++ ) {\n\n\t\t\t\tArray.prototype.push.apply( shapes, paths[ p ].toShapes() );\n\n\t\t\t}\n\n\t\t\treturn shapes;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction FontLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( FontLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar scope = this;\n\n\t\t\tvar loader = new XHRLoader( this.manager );\n\t\t\tloader.load( url, function ( text ) {\n\n\t\t\t\tvar json;\n\n\t\t\t\ttry {\n\n\t\t\t\t\tjson = JSON.parse( text );\n\n\t\t\t\t} catch ( e ) {\n\n\t\t\t\t\tconsole.warn( 'THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.' );\n\t\t\t\t\tjson = JSON.parse( text.substring( 65, text.length - 2 ) );\n\n\t\t\t\t}\n\n\t\t\t\tvar font = scope.parse( json );\n\n\t\t\t\tif ( onLoad ) onLoad( font );\n\n\t\t\t}, onProgress, onError );\n\n\t\t},\n\n\t\tparse: function ( json ) {\n\n\t\t\treturn new Font( json );\n\n\t\t}\n\n\t} );\n\n\tvar context;\n\n\tfunction getAudioContext() {\n\n\t\tif ( context === undefined ) {\n\n\t\t\tcontext = new ( window.AudioContext || window.webkitAudioContext )();\n\n\t\t}\n\n\t\treturn context;\n\n\t}\n\n\t/**\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction AudioLoader( manager ) {\n\n\t\tthis.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;\n\n\t}\n\n\tObject.assign( AudioLoader.prototype, {\n\n\t\tload: function ( url, onLoad, onProgress, onError ) {\n\n\t\t\tvar loader = new XHRLoader( this.manager );\n\t\t\tloader.setResponseType( 'arraybuffer' );\n\t\t\tloader.load( url, function ( buffer ) {\n\n\t\t\t\tvar context = getAudioContext();\n\n\t\t\t\tcontext.decodeAudioData( buffer, function ( audioBuffer ) {\n\n\t\t\t\t\tonLoad( audioBuffer );\n\n\t\t\t\t} );\n\n\t\t\t}, onProgress, onError );\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction StereoCamera() {\n\n\t\tthis.type = 'StereoCamera';\n\n\t\tthis.aspect = 1;\n\n\t\tthis.eyeSep = 0.064;\n\n\t\tthis.cameraL = new PerspectiveCamera();\n\t\tthis.cameraL.layers.enable( 1 );\n\t\tthis.cameraL.matrixAutoUpdate = false;\n\n\t\tthis.cameraR = new PerspectiveCamera();\n\t\tthis.cameraR.layers.enable( 2 );\n\t\tthis.cameraR.matrixAutoUpdate = false;\n\n\t}\n\n\tObject.assign( StereoCamera.prototype, {\n\n\t\tupdate: ( function () {\n\n\t\t\tvar instance, focus, fov, aspect, near, far, zoom;\n\n\t\t\tvar eyeRight = new Matrix4();\n\t\t\tvar eyeLeft = new Matrix4();\n\n\t\t\treturn function update( camera ) {\n\n\t\t\t\tvar needsUpdate = instance !== this || focus !== camera.focus || fov !== camera.fov ||\n\t\t\t\t\t\t\t\t\t\t\t\t\taspect !== camera.aspect * this.aspect || near !== camera.near ||\n\t\t\t\t\t\t\t\t\t\t\t\t\tfar !== camera.far || zoom !== camera.zoom;\n\n\t\t\t\tif ( needsUpdate ) {\n\n\t\t\t\t\tinstance = this;\n\t\t\t\t\tfocus = camera.focus;\n\t\t\t\t\tfov = camera.fov;\n\t\t\t\t\taspect = camera.aspect * this.aspect;\n\t\t\t\t\tnear = camera.near;\n\t\t\t\t\tfar = camera.far;\n\t\t\t\t\tzoom = camera.zoom;\n\n\t\t\t\t\t// Off-axis stereoscopic effect based on\n\t\t\t\t\t// http://paulbourke.net/stereographics/stereorender/\n\n\t\t\t\t\tvar projectionMatrix = camera.projectionMatrix.clone();\n\t\t\t\t\tvar eyeSep = this.eyeSep / 2;\n\t\t\t\t\tvar eyeSepOnProjection = eyeSep * near / focus;\n\t\t\t\t\tvar ymax = ( near * Math.tan( _Math.DEG2RAD * fov * 0.5 ) ) / zoom;\n\t\t\t\t\tvar xmin, xmax;\n\n\t\t\t\t\t// translate xOffset\n\n\t\t\t\t\teyeLeft.elements[ 12 ] = - eyeSep;\n\t\t\t\t\teyeRight.elements[ 12 ] = eyeSep;\n\n\t\t\t\t\t// for left eye\n\n\t\t\t\t\txmin = - ymax * aspect + eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect + eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraL.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t\t// for right eye\n\n\t\t\t\t\txmin = - ymax * aspect - eyeSepOnProjection;\n\t\t\t\t\txmax = ymax * aspect - eyeSepOnProjection;\n\n\t\t\t\t\tprojectionMatrix.elements[ 0 ] = 2 * near / ( xmax - xmin );\n\t\t\t\t\tprojectionMatrix.elements[ 8 ] = ( xmax + xmin ) / ( xmax - xmin );\n\n\t\t\t\t\tthis.cameraR.projectionMatrix.copy( projectionMatrix );\n\n\t\t\t\t}\n\n\t\t\t\tthis.cameraL.matrixWorld.copy( camera.matrixWorld ).multiply( eyeLeft );\n\t\t\t\tthis.cameraR.matrixWorld.copy( camera.matrixWorld ).multiply( eyeRight );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * Camera for rendering cube maps\n\t *\t- renders scene into axis-aligned cube\n\t *\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction CubeCamera( near, far, cubeResolution ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'CubeCamera';\n\n\t\tvar fov = 90, aspect = 1;\n\n\t\tvar cameraPX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPX.up.set( 0, - 1, 0 );\n\t\tcameraPX.lookAt( new Vector3( 1, 0, 0 ) );\n\t\tthis.add( cameraPX );\n\n\t\tvar cameraNX = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNX.up.set( 0, - 1, 0 );\n\t\tcameraNX.lookAt( new Vector3( - 1, 0, 0 ) );\n\t\tthis.add( cameraNX );\n\n\t\tvar cameraPY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPY.up.set( 0, 0, 1 );\n\t\tcameraPY.lookAt( new Vector3( 0, 1, 0 ) );\n\t\tthis.add( cameraPY );\n\n\t\tvar cameraNY = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNY.up.set( 0, 0, - 1 );\n\t\tcameraNY.lookAt( new Vector3( 0, - 1, 0 ) );\n\t\tthis.add( cameraNY );\n\n\t\tvar cameraPZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraPZ.up.set( 0, - 1, 0 );\n\t\tcameraPZ.lookAt( new Vector3( 0, 0, 1 ) );\n\t\tthis.add( cameraPZ );\n\n\t\tvar cameraNZ = new PerspectiveCamera( fov, aspect, near, far );\n\t\tcameraNZ.up.set( 0, - 1, 0 );\n\t\tcameraNZ.lookAt( new Vector3( 0, 0, - 1 ) );\n\t\tthis.add( cameraNZ );\n\n\t\tvar options = { format: RGBFormat, magFilter: LinearFilter, minFilter: LinearFilter };\n\n\t\tthis.renderTarget = new WebGLRenderTargetCube( cubeResolution, cubeResolution, options );\n\n\t\tthis.updateCubeMap = function ( renderer, scene ) {\n\n\t\t\tif ( this.parent === null ) this.updateMatrixWorld();\n\n\t\t\tvar renderTarget = this.renderTarget;\n\t\t\tvar generateMipmaps = renderTarget.texture.generateMipmaps;\n\n\t\t\trenderTarget.texture.generateMipmaps = false;\n\n\t\t\trenderTarget.activeCubeFace = 0;\n\t\t\trenderer.render( scene, cameraPX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 1;\n\t\t\trenderer.render( scene, cameraNX, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 2;\n\t\t\trenderer.render( scene, cameraPY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 3;\n\t\t\trenderer.render( scene, cameraNY, renderTarget );\n\n\t\t\trenderTarget.activeCubeFace = 4;\n\t\t\trenderer.render( scene, cameraPZ, renderTarget );\n\n\t\t\trenderTarget.texture.generateMipmaps = generateMipmaps;\n\n\t\t\trenderTarget.activeCubeFace = 5;\n\t\t\trenderer.render( scene, cameraNZ, renderTarget );\n\n\t\t\trenderer.setRenderTarget( null );\n\n\t\t};\n\n\t}\n\n\tCubeCamera.prototype = Object.create( Object3D.prototype );\n\tCubeCamera.prototype.constructor = CubeCamera;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioListener() {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'AudioListener';\n\n\t\tthis.context = getAudioContext();\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( this.context.destination );\n\n\t\tthis.filter = null;\n\n\t}\n\n\tAudioListener.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: AudioListener,\n\n\t\tgetInput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tremoveFilter: function ( ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\t\t\t\tthis.gain.connect( this.context.destination );\n\t\t\t\tthis.filter = null;\n\n\t\t\t}\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.filter;\n\n\t\t},\n\n\t\tsetFilter: function ( value ) {\n\n\t\t\tif ( this.filter !== null ) {\n\n\t\t\t\tthis.gain.disconnect( this.filter );\n\t\t\t\tthis.filter.disconnect( this.context.destination );\n\n\t\t\t} else {\n\n\t\t\t\tthis.gain.disconnect( this.context.destination );\n\n\t\t\t}\n\n\t\t\tthis.filter = value;\n\t\t\tthis.gain.connect( this.filter );\n\t\t\tthis.filter.connect( this.context.destination );\n\n\t\t},\n\n\t\tgetMasterVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\t\tsetMasterVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.value = value;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\t\t\tvar quaternion = new Quaternion();\n\t\t\tvar scale = new Vector3();\n\n\t\t\tvar orientation = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tvar listener = this.context.listener;\n\t\t\t\tvar up = this.up;\n\n\t\t\t\tthis.matrixWorld.decompose( position, quaternion, scale );\n\n\t\t\t\torientation.set( 0, 0, - 1 ).applyQuaternion( quaternion );\n\n\t\t\t\tlistener.setPosition( position.x, position.y, position.z );\n\t\t\t\tlistener.setOrientation( orientation.x, orientation.y, orientation.z, up.x, up.y, up.z );\n\n\t\t\t};\n\n\t\t} )()\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author Reece Aaron Lecrivain / http://reecenotes.com/\n\t */\n\n\tfunction Audio( listener ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.type = 'Audio';\n\n\t\tthis.context = listener.context;\n\t\tthis.source = this.context.createBufferSource();\n\t\tthis.source.onended = this.onEnded.bind( this );\n\n\t\tthis.gain = this.context.createGain();\n\t\tthis.gain.connect( listener.getInput() );\n\n\t\tthis.autoplay = false;\n\n\t\tthis.startTime = 0;\n\t\tthis.playbackRate = 1;\n\t\tthis.isPlaying = false;\n\t\tthis.hasPlaybackControl = true;\n\t\tthis.sourceType = 'empty';\n\n\t\tthis.filters = [];\n\n\t}\n\n\tAudio.prototype = Object.assign( Object.create( Object3D.prototype ), {\n\n\t\tconstructor: Audio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.gain;\n\n\t\t},\n\n\t\tsetNodeSource: function ( audioNode ) {\n\n\t\t\tthis.hasPlaybackControl = false;\n\t\t\tthis.sourceType = 'audioNode';\n\t\t\tthis.source = audioNode;\n\t\t\tthis.connect();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetBuffer: function ( audioBuffer ) {\n\n\t\t\tthis.source.buffer = audioBuffer;\n\t\t\tthis.sourceType = 'buffer';\n\n\t\t\tif ( this.autoplay ) this.play();\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tplay: function () {\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: Audio is already playing.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tvar source = this.context.createBufferSource();\n\n\t\t\tsource.buffer = this.source.buffer;\n\t\t\tsource.loop = this.source.loop;\n\t\t\tsource.onended = this.source.onended;\n\t\t\tsource.start( 0, this.startTime );\n\t\t\tsource.playbackRate.value = this.playbackRate;\n\n\t\t\tthis.isPlaying = true;\n\n\t\t\tthis.source = source;\n\n\t\t\treturn this.connect();\n\n\t\t},\n\n\t\tpause: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.source.stop();\n\t\t\tthis.startTime = this.context.currentTime;\n\t\t\tthis.isPlaying = false;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.source.stop();\n\t\t\tthis.startTime = 0;\n\t\t\tthis.isPlaying = false;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.connect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].connect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].connect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.connect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tdisconnect: function () {\n\n\t\t\tif ( this.filters.length > 0 ) {\n\n\t\t\t\tthis.source.disconnect( this.filters[ 0 ] );\n\n\t\t\t\tfor ( var i = 1, l = this.filters.length; i < l; i ++ ) {\n\n\t\t\t\t\tthis.filters[ i - 1 ].disconnect( this.filters[ i ] );\n\n\t\t\t\t}\n\n\t\t\t\tthis.filters[ this.filters.length - 1 ].disconnect( this.getOutput() );\n\n\t\t\t} else {\n\n\t\t\t\tthis.source.disconnect( this.getOutput() );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilters: function () {\n\n\t\t\treturn this.filters;\n\n\t\t},\n\n\t\tsetFilters: function ( value ) {\n\n\t\t\tif ( ! value ) value = [];\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.disconnect();\n\t\t\t\tthis.filters = value;\n\t\t\t\tthis.connect();\n\n\t\t\t} else {\n\n\t\t\t\tthis.filters = value;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetFilter: function () {\n\n\t\t\treturn this.getFilters()[ 0 ];\n\n\t\t},\n\n\t\tsetFilter: function ( filter ) {\n\n\t\t\treturn this.setFilters( filter ? [ filter ] : [] );\n\n\t\t},\n\n\t\tsetPlaybackRate: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.playbackRate = value;\n\n\t\t\tif ( this.isPlaying === true ) {\n\n\t\t\t\tthis.source.playbackRate.value = this.playbackRate;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetPlaybackRate: function () {\n\n\t\t\treturn this.playbackRate;\n\n\t\t},\n\n\t\tonEnded: function () {\n\n\t\t\tthis.isPlaying = false;\n\n\t\t},\n\n\t\tgetLoop: function () {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn false;\n\n\t\t\t}\n\n\t\t\treturn this.source.loop;\n\n\t\t},\n\n\t\tsetLoop: function ( value ) {\n\n\t\t\tif ( this.hasPlaybackControl === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Audio: this Audio has no playback control.' );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tthis.source.loop = value;\n\n\t\t},\n\n\t\tgetVolume: function () {\n\n\t\t\treturn this.gain.gain.value;\n\n\t\t},\n\n\n\t\tsetVolume: function ( value ) {\n\n\t\t\tthis.gain.gain.value = value;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PositionalAudio( listener ) {\n\n\t\tAudio.call( this, listener );\n\n\t\tthis.panner = this.context.createPanner();\n\t\tthis.panner.connect( this.gain );\n\n\t}\n\n\tPositionalAudio.prototype = Object.assign( Object.create( Audio.prototype ), {\n\n\t\tconstructor: PositionalAudio,\n\n\t\tgetOutput: function () {\n\n\t\t\treturn this.panner;\n\n\t\t},\n\n\t\tgetRefDistance: function () {\n\n\t\t\treturn this.panner.refDistance;\n\n\t\t},\n\n\t\tsetRefDistance: function ( value ) {\n\n\t\t\tthis.panner.refDistance = value;\n\n\t\t},\n\n\t\tgetRolloffFactor: function () {\n\n\t\t\treturn this.panner.rolloffFactor;\n\n\t\t},\n\n\t\tsetRolloffFactor: function ( value ) {\n\n\t\t\tthis.panner.rolloffFactor = value;\n\n\t\t},\n\n\t\tgetDistanceModel: function () {\n\n\t\t\treturn this.panner.distanceModel;\n\n\t\t},\n\n\t\tsetDistanceModel: function ( value ) {\n\n\t\t\tthis.panner.distanceModel = value;\n\n\t\t},\n\n\t\tgetMaxDistance: function () {\n\n\t\t\treturn this.panner.maxDistance;\n\n\t\t},\n\n\t\tsetMaxDistance: function ( value ) {\n\n\t\t\tthis.panner.maxDistance = value;\n\n\t\t},\n\n\t\tupdateMatrixWorld: ( function () {\n\n\t\t\tvar position = new Vector3();\n\n\t\t\treturn function updateMatrixWorld( force ) {\n\n\t\t\t\tObject3D.prototype.updateMatrixWorld.call( this, force );\n\n\t\t\t\tposition.setFromMatrixPosition( this.matrixWorld );\n\n\t\t\t\tthis.panner.setPosition( position.x, position.y, position.z );\n\n\t\t\t};\n\n\t\t} )()\n\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AudioAnalyser( audio, fftSize ) {\n\n\t\tthis.analyser = audio.context.createAnalyser();\n\t\tthis.analyser.fftSize = fftSize !== undefined ? fftSize : 2048;\n\n\t\tthis.data = new Uint8Array( this.analyser.frequencyBinCount );\n\n\t\taudio.getOutput().connect( this.analyser );\n\n\t}\n\n\tObject.assign( AudioAnalyser.prototype, {\n\n\t\tgetFrequencyData: function () {\n\n\t\t\tthis.analyser.getByteFrequencyData( this.data );\n\n\t\t\treturn this.data;\n\n\t\t},\n\n\t\tgetAverageFrequency: function () {\n\n\t\t\tvar value = 0, data = this.getFrequencyData();\n\n\t\t\tfor ( var i = 0; i < data.length; i ++ ) {\n\n\t\t\t\tvalue += data[ i ];\n\n\t\t\t}\n\n\t\t\treturn value / data.length;\n\n\t\t}\n\n\t} );\n\n\t/**\n\t *\n\t * Buffered scene graph property that allows weighted accumulation.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction PropertyMixer( binding, typeName, valueSize ) {\n\n\t\tthis.binding = binding;\n\t\tthis.valueSize = valueSize;\n\n\t\tvar bufferType = Float64Array,\n\t\t\tmixFunction;\n\n\t\tswitch ( typeName ) {\n\n\t\t\tcase 'quaternion':\t\t\tmixFunction = this._slerp;\t\tbreak;\n\n\t\t\tcase 'string':\n\t\t\tcase 'bool':\n\n\t\t\t\tbufferType = Array,\t\tmixFunction = this._select;\t\tbreak;\n\n\t\t\tdefault:\t\t\t\t\tmixFunction = this._lerp;\n\n\t\t}\n\n\t\tthis.buffer = new bufferType( valueSize * 4 );\n\t\t// layout: [ incoming | accu0 | accu1 | orig ]\n\t\t//\n\t\t// interpolators can use .buffer as their .result\n\t\t// the data then goes to 'incoming'\n\t\t//\n\t\t// 'accu0' and 'accu1' are used frame-interleaved for\n\t\t// the cumulative result and are compared to detect\n\t\t// changes\n\t\t//\n\t\t// 'orig' stores the original state of the property\n\n\t\tthis._mixBufferRegion = mixFunction;\n\n\t\tthis.cumulativeWeight = 0;\n\n\t\tthis.useCount = 0;\n\t\tthis.referenceCount = 0;\n\n\t}\n\n\tPropertyMixer.prototype = {\n\n\t\tconstructor: PropertyMixer,\n\n\t\t// accumulate data in the 'incoming' region into 'accu'\n\t\taccumulate: function( accuIndex, weight ) {\n\n\t\t\t// note: happily accumulating nothing when weight = 0, the caller knows\n\t\t\t// the weight and shouldn't have made the call in the first place\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tcurrentWeight = this.cumulativeWeight;\n\n\t\t\tif ( currentWeight === 0 ) {\n\n\t\t\t\t// accuN := incoming * weight\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset + i ] = buffer[ i ];\n\n\t\t\t\t}\n\n\t\t\t\tcurrentWeight = weight;\n\n\t\t\t} else {\n\n\t\t\t\t// accuN := accuN + incoming * weight\n\n\t\t\t\tcurrentWeight += weight;\n\t\t\t\tvar mix = weight / currentWeight;\n\t\t\t\tthis._mixBufferRegion( buffer, offset, 0, mix, stride );\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = currentWeight;\n\n\t\t},\n\n\t\t// apply the state of 'accu' to the binding when accus differ\n\t\tapply: function( accuIndex ) {\n\n\t\t\tvar stride = this.valueSize,\n\t\t\t\tbuffer = this.buffer,\n\t\t\t\toffset = accuIndex * stride + stride,\n\n\t\t\t\tweight = this.cumulativeWeight,\n\n\t\t\t\tbinding = this.binding;\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t\tif ( weight < 1 ) {\n\n\t\t\t\t// accuN := accuN + original * ( 1 - cumulativeWeight )\n\n\t\t\t\tvar originalValueOffset = stride * 3;\n\n\t\t\t\tthis._mixBufferRegion(\n\t\t\t\t\t\tbuffer, offset, originalValueOffset, 1 - weight, stride );\n\n\t\t\t}\n\n\t\t\tfor ( var i = stride, e = stride + stride; i !== e; ++ i ) {\n\n\t\t\t\tif ( buffer[ i ] !== buffer[ i + stride ] ) {\n\n\t\t\t\t\t// value has changed -> update scene graph\n\n\t\t\t\t\tbinding.setValue( buffer, offset );\n\t\t\t\t\tbreak;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remember the state of the bound property and copy it to both accus\n\t\tsaveOriginalState: function() {\n\n\t\t\tvar binding = this.binding;\n\n\t\t\tvar buffer = this.buffer,\n\t\t\t\tstride = this.valueSize,\n\n\t\t\t\toriginalValueOffset = stride * 3;\n\n\t\t\tbinding.getValue( buffer, originalValueOffset );\n\n\t\t\t// accu[0..1] := orig -- initially detect changes against the original\n\t\t\tfor ( var i = stride, e = originalValueOffset; i !== e; ++ i ) {\n\n\t\t\t\tbuffer[ i ] = buffer[ originalValueOffset + ( i % stride ) ];\n\n\t\t\t}\n\n\t\t\tthis.cumulativeWeight = 0;\n\n\t\t},\n\n\t\t// apply the state previously taken via 'saveOriginalState' to the binding\n\t\trestoreOriginalState: function() {\n\n\t\t\tvar originalValueOffset = this.valueSize * 3;\n\t\t\tthis.binding.setValue( this.buffer, originalValueOffset );\n\n\t\t},\n\n\n\t\t// mix functions\n\n\t\t_select: function( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tif ( t >= 0.5 ) {\n\n\t\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\t\tbuffer[ dstOffset + i ] = buffer[ srcOffset + i ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_slerp: function( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tQuaternion.slerpFlat( buffer, dstOffset,\n\t\t\t\t\tbuffer, dstOffset, buffer, srcOffset, t );\n\n\t\t},\n\n\t\t_lerp: function( buffer, dstOffset, srcOffset, t, stride ) {\n\n\t\t\tvar s = 1 - t;\n\n\t\t\tfor ( var i = 0; i !== stride; ++ i ) {\n\n\t\t\t\tvar j = dstOffset + i;\n\n\t\t\t\tbuffer[ j ] = buffer[ j ] * s + buffer[ srcOffset + i ] * t;\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t *\n\t * A reference to a real property in the scene graph.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction PropertyBinding( rootNode, path, parsedPath ) {\n\n\t\tthis.path = path;\n\t\tthis.parsedPath = parsedPath ||\n\t\t\t\tPropertyBinding.parseTrackName( path );\n\n\t\tthis.node = PropertyBinding.findNode(\n\t\t\t\trootNode, this.parsedPath.nodeName ) || rootNode;\n\n\t\tthis.rootNode = rootNode;\n\n\t}\n\n\tPropertyBinding.prototype = {\n\n\t\tconstructor: PropertyBinding,\n\n\t\tgetValue: function getValue_unbound( targetArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.getValue( targetArray, offset );\n\n\t\t\t// Note: This class uses a State pattern on a per-method basis:\n\t\t\t// 'bind' sets 'this.getValue' / 'setValue' and shadows the\n\t\t\t// prototype version of these methods with one that represents\n\t\t\t// the bound state. When the property is not found, the methods\n\t\t\t// become no-ops.\n\n\t\t},\n\n\t\tsetValue: function getValue_unbound( sourceArray, offset ) {\n\n\t\t\tthis.bind();\n\t\t\tthis.setValue( sourceArray, offset );\n\n\t\t},\n\n\t\t// create getter / setter pair for a property in the scene graph\n\t\tbind: function() {\n\n\t\t\tvar targetObject = this.node,\n\t\t\t\tparsedPath = this.parsedPath,\n\n\t\t\t\tobjectName = parsedPath.objectName,\n\t\t\t\tpropertyName = parsedPath.propertyName,\n\t\t\t\tpropertyIndex = parsedPath.propertyIndex;\n\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\ttargetObject = PropertyBinding.findNode(\n\t\t\t\t\t\tthis.rootNode, parsedPath.nodeName ) || this.rootNode;\n\n\t\t\t\tthis.node = targetObject;\n\n\t\t\t}\n\n\t\t\t// set fail state so we can just 'return' on error\n\t\t\tthis.getValue = this._getValue_unavailable;\n\t\t\tthis.setValue = this._setValue_unavailable;\n\n\t \t\t// ensure there is a value node\n\t\t\tif ( ! targetObject ) {\n\n\t\t\t\tconsole.error( \" trying to update node for track: \" + this.path + \" but it wasn't found.\" );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\tif ( objectName ) {\n\n\t\t\t\tvar objectIndex = parsedPath.objectIndex;\n\n\t\t\t\t// special cases were we need to reach deeper into the hierarchy to get the face materials....\n\t\t\t\tswitch ( objectName ) {\n\n\t\t\t\t\tcase 'materials':\n\n\t\t\t\t\t\tif ( ! targetObject.material ) {\n\n\t\t\t\t\t\t\tconsole.error( ' can not bind to material as node does not have a material', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tif ( ! targetObject.material.materials ) {\n\n\t\t\t\t\t\t\tconsole.error( ' can not bind to material.materials as node.material does not have a materials array', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject.material.materials;\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tcase 'bones':\n\n\t\t\t\t\t\tif ( ! targetObject.skeleton ) {\n\n\t\t\t\t\t\t\tconsole.error( ' can not bind to bones as node does not have a skeleton', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// potential future optimization: skip this if propertyIndex is already an integer\n\t\t\t\t\t\t// and convert the integer string to a true integer.\n\n\t\t\t\t\t\ttargetObject = targetObject.skeleton.bones;\n\n\t\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\t\tfor ( var i = 0; i < targetObject.length; i ++ ) {\n\n\t\t\t\t\t\t\tif ( targetObject[ i ].name === objectIndex ) {\n\n\t\t\t\t\t\t\t\tobjectIndex = i;\n\t\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\n\t\t\t\t\tdefault:\n\n\t\t\t\t\t\tif ( targetObject[ objectName ] === undefined ) {\n\n\t\t\t\t\t\t\tconsole.error( ' can not bind to objectName of node, undefined', this );\n\t\t\t\t\t\t\treturn;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\ttargetObject = targetObject[ objectName ];\n\n\t\t\t\t}\n\n\n\t\t\t\tif ( objectIndex !== undefined ) {\n\n\t\t\t\t\tif ( targetObject[ objectIndex ] === undefined ) {\n\n\t\t\t\t\t\tconsole.error( \" trying to bind to objectIndex of objectName, but is undefined:\", this, targetObject );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\ttargetObject = targetObject[ objectIndex ];\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// resolve property\n\t\t\tvar nodeProperty = targetObject[ propertyName ];\n\n\t\t\tif ( nodeProperty === undefined ) {\n\n\t\t\t\tvar nodeName = parsedPath.nodeName;\n\n\t\t\t\tconsole.error( \" trying to update property for track: \" + nodeName +\n\t\t\t\t\t\t'.' + propertyName + \" but it wasn't found.\", targetObject );\n\t\t\t\treturn;\n\n\t\t\t}\n\n\t\t\t// determine versioning scheme\n\t\t\tvar versioning = this.Versioning.None;\n\n\t\t\tif ( targetObject.needsUpdate !== undefined ) { // material\n\n\t\t\t\tversioning = this.Versioning.NeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t} else if ( targetObject.matrixWorldNeedsUpdate !== undefined ) { // node transform\n\n\t\t\t\tversioning = this.Versioning.MatrixWorldNeedsUpdate;\n\t\t\t\tthis.targetObject = targetObject;\n\n\t\t\t}\n\n\t\t\t// determine how the property gets bound\n\t\t\tvar bindingType = this.BindingType.Direct;\n\n\t\t\tif ( propertyIndex !== undefined ) {\n\t\t\t\t// access a sub element of the property array (only primitives are supported right now)\n\n\t\t\t\tif ( propertyName === \"morphTargetInfluences\" ) {\n\t\t\t\t\t// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.\n\n\t\t\t\t\t// support resolving morphTarget names into indices.\n\t\t\t\t\tif ( ! targetObject.geometry ) {\n\n\t\t\t\t\t\tconsole.error( ' can not bind to morphTargetInfluences becasuse node does not have a geometry', this );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tif ( ! targetObject.geometry.morphTargets ) {\n\n\t\t\t\t\t\tconsole.error( ' can not bind to morphTargetInfluences becasuse node does not have a geometry.morphTargets', this );\n\t\t\t\t\t\treturn;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tfor ( var i = 0; i < this.node.geometry.morphTargets.length; i ++ ) {\n\n\t\t\t\t\t\tif ( targetObject.geometry.morphTargets[ i ].name === propertyIndex ) {\n\n\t\t\t\t\t\t\tpropertyIndex = i;\n\t\t\t\t\t\t\tbreak;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tbindingType = this.BindingType.ArrayElement;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\t\t\t\tthis.propertyIndex = propertyIndex;\n\n\t\t\t} else if ( nodeProperty.fromArray !== undefined && nodeProperty.toArray !== undefined ) {\n\t\t\t\t// must use copy for Object3D.Euler/Quaternion\n\n\t\t\t\tbindingType = this.BindingType.HasFromToArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else if ( nodeProperty.length !== undefined ) {\n\n\t\t\t\tbindingType = this.BindingType.EntireArray;\n\n\t\t\t\tthis.resolvedProperty = nodeProperty;\n\n\t\t\t} else {\n\n\t\t\t\tthis.propertyName = propertyName;\n\n\t\t\t}\n\n\t\t\t// select getter / setter\n\t\t\tthis.getValue = this.GetterByBindingType[ bindingType ];\n\t\t\tthis.setValue = this.SetterByBindingTypeAndVersioning[ bindingType ][ versioning ];\n\n\t\t},\n\n\t\tunbind: function() {\n\n\t\t\tthis.node = null;\n\n\t\t\t// back to the prototype version of getValue / setValue\n\t\t\t// note: avoiding to mutate the shape of 'this' via 'delete'\n\t\t\tthis.getValue = this._getValue_unbound;\n\t\t\tthis.setValue = this._setValue_unbound;\n\n\t\t}\n\n\t};\n\n\tObject.assign( PropertyBinding.prototype, { // prototype, continued\n\n\t\t// these are used to \"bind\" a nonexistent property\n\t\t_getValue_unavailable: function() {},\n\t\t_setValue_unavailable: function() {},\n\n\t\t// initial state of these methods that calls 'bind'\n\t\t_getValue_unbound: PropertyBinding.prototype.getValue,\n\t\t_setValue_unbound: PropertyBinding.prototype.setValue,\n\n\t\tBindingType: {\n\t\t\tDirect: 0,\n\t\t\tEntireArray: 1,\n\t\t\tArrayElement: 2,\n\t\t\tHasFromToArray: 3\n\t\t},\n\n\t\tVersioning: {\n\t\t\tNone: 0,\n\t\t\tNeedsUpdate: 1,\n\t\t\tMatrixWorldNeedsUpdate: 2\n\t\t},\n\n\t\tGetterByBindingType: [\n\n\t\t\tfunction getValue_direct( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.node[ this.propertyName ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_array( buffer, offset ) {\n\n\t\t\t\tvar source = this.resolvedProperty;\n\n\t\t\t\tfor ( var i = 0, n = source.length; i !== n; ++ i ) {\n\n\t\t\t\t\tbuffer[ offset ++ ] = source[ i ];\n\n\t\t\t\t}\n\n\t\t\t},\n\n\t\t\tfunction getValue_arrayElement( buffer, offset ) {\n\n\t\t\t\tbuffer[ offset ] = this.resolvedProperty[ this.propertyIndex ];\n\n\t\t\t},\n\n\t\t\tfunction getValue_toArray( buffer, offset ) {\n\n\t\t\t\tthis.resolvedProperty.toArray( buffer, offset );\n\n\t\t\t}\n\n\t\t],\n\n\t\tSetterByBindingTypeAndVersioning: [\n\n\t\t\t[\n\t\t\t\t// Direct\n\n\t\t\t\tfunction setValue_direct( buffer, offset ) {\n\n\t\t\t\t\tthis.node[ this.propertyName ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.node[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_direct_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.node[ this.propertyName ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// EntireArray\n\n\t\t\t\tfunction setValue_array( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_array_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tvar dest = this.resolvedProperty;\n\n\t\t\t\t\tfor ( var i = 0, n = dest.length; i !== n; ++ i ) {\n\n\t\t\t\t\t\tdest[ i ] = buffer[ offset ++ ];\n\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// ArrayElement\n\n\t\t\t\tfunction setValue_arrayElement( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_arrayElement_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty[ this.propertyIndex ] = buffer[ offset ];\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t], [\n\n\t\t\t\t// HasToFromArray\n\n\t\t\t\tfunction setValue_fromArray( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.needsUpdate = true;\n\n\t\t\t\t},\n\n\t\t\t\tfunction setValue_fromArray_setMatrixWorldNeedsUpdate( buffer, offset ) {\n\n\t\t\t\t\tthis.resolvedProperty.fromArray( buffer, offset );\n\t\t\t\t\tthis.targetObject.matrixWorldNeedsUpdate = true;\n\n\t\t\t\t}\n\n\t\t\t]\n\n\t\t]\n\n\t} );\n\n\tPropertyBinding.Composite =\n\t\t\tfunction( targetGroup, path, optionalParsedPath ) {\n\n\t\tvar parsedPath = optionalParsedPath ||\n\t\t\t\tPropertyBinding.parseTrackName( path );\n\n\t\tthis._targetGroup = targetGroup;\n\t\tthis._bindings = targetGroup.subscribe_( path, parsedPath );\n\n\t};\n\n\tPropertyBinding.Composite.prototype = {\n\n\t\tconstructor: PropertyBinding.Composite,\n\n\t\tgetValue: function( array, offset ) {\n\n\t\t\tthis.bind(); // bind all binding\n\n\t\t\tvar firstValidIndex = this._targetGroup.nCachedObjects_,\n\t\t\t\tbinding = this._bindings[ firstValidIndex ];\n\n\t\t\t// and only call .getValue on the first\n\t\t\tif ( binding !== undefined ) binding.getValue( array, offset );\n\n\t\t},\n\n\t\tsetValue: function( array, offset ) {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\tn = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].setValue( array, offset );\n\n\t\t\t}\n\n\t\t},\n\n\t\tbind: function() {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\tn = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].bind();\n\n\t\t\t}\n\n\t\t},\n\n\t\tunbind: function() {\n\n\t\t\tvar bindings = this._bindings;\n\n\t\t\tfor ( var i = this._targetGroup.nCachedObjects_,\n\t\t\t\t\tn = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tbindings[ i ].unbind();\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\tPropertyBinding.create = function( root, path, parsedPath ) {\n\n\t\tif ( ! ( (root && root.isAnimationObjectGroup) ) ) {\n\n\t\t\treturn new PropertyBinding( root, path, parsedPath );\n\n\t\t} else {\n\n\t\t\treturn new PropertyBinding.Composite( root, path, parsedPath );\n\n\t\t}\n\n\t};\n\n\tPropertyBinding.parseTrackName = function( trackName ) {\n\n\t\t// matches strings in the form of:\n\t\t// nodeName.property\n\t\t// nodeName.property[accessor]\n\t\t// nodeName.material.property[accessor]\n\t\t// uuid.property[accessor]\n\t\t// uuid.objectName[objectIndex].propertyName[propertyIndex]\n\t\t// parentName/nodeName.property\n\t\t// parentName/parentName/nodeName.property[index]\n\t\t// .bone[Armature.DEF_cog].position\n\t\t// scene:helium_balloon_model:helium_balloon_model.position\n\t\t// created and tested via https://regex101.com/#javascript\n\n\t\tvar re = /^((?:\\w+[\\/:])*)(\\w+)?(?:\\.(\\w+)(?:\\[(.+)\\])?)?\\.(\\w+)(?:\\[(.+)\\])?$/;\n\t\tvar matches = re.exec( trackName );\n\n\t\tif ( ! matches ) {\n\n\t\t\tthrow new Error( \"cannot parse trackName at all: \" + trackName );\n\n\t\t}\n\n\t\tvar results = {\n\t\t\t// directoryName: matches[ 1 ], // (tschw) currently unused\n\t\t\tnodeName: matches[ 2 ], \t// allowed to be null, specified root node.\n\t\t\tobjectName: matches[ 3 ],\n\t\t\tobjectIndex: matches[ 4 ],\n\t\t\tpropertyName: matches[ 5 ],\n\t\t\tpropertyIndex: matches[ 6 ]\t// allowed to be null, specifies that the whole property is set.\n\t\t};\n\n\t\tif ( results.propertyName === null || results.propertyName.length === 0 ) {\n\n\t\t\tthrow new Error( \"can not parse propertyName from trackName: \" + trackName );\n\n\t\t}\n\n\t\treturn results;\n\n\t};\n\n\tPropertyBinding.findNode = function( root, nodeName ) {\n\n\t\tif ( ! nodeName || nodeName === \"\" || nodeName === \"root\" || nodeName === \".\" || nodeName === -1 || nodeName === root.name || nodeName === root.uuid ) {\n\n\t\t\treturn root;\n\n\t\t}\n\n\t\t// search into skeleton bones.\n\t\tif ( root.skeleton ) {\n\n\t\t\tvar searchSkeleton = function( skeleton ) {\n\n\t\t\t\tfor( var i = 0; i < skeleton.bones.length; i ++ ) {\n\n\t\t\t\t\tvar bone = skeleton.bones[ i ];\n\n\t\t\t\t\tif ( bone.name === nodeName ) {\n\n\t\t\t\t\t\treturn bone;\n\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn null;\n\n\t\t\t};\n\n\t\t\tvar bone = searchSkeleton( root.skeleton );\n\n\t\t\tif ( bone ) {\n\n\t\t\t\treturn bone;\n\n\t\t\t}\n\t\t}\n\n\t\t// search into node subtree.\n\t\tif ( root.children ) {\n\n\t\t\tvar searchNodeSubtree = function( children ) {\n\n\t\t\t\tfor( var i = 0; i < children.length; i ++ ) {\n\n\t\t\t\t\tvar childNode = children[ i ];\n\n\t\t\t\t\tif ( childNode.name === nodeName || childNode.uuid === nodeName ) {\n\n\t\t\t\t\t\treturn childNode;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar result = searchNodeSubtree( childNode.children );\n\n\t\t\t\t\tif ( result ) return result;\n\n\t\t\t\t}\n\n\t\t\t\treturn null;\n\n\t\t\t};\n\n\t\t\tvar subTreeNode = searchNodeSubtree( root.children );\n\n\t\t\tif ( subTreeNode ) {\n\n\t\t\t\treturn subTreeNode;\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn null;\n\n\t};\n\n\t/**\n\t *\n\t * A group of objects that receives a shared animation state.\n\t *\n\t * Usage:\n\t *\n\t * \t-\tAdd objects you would otherwise pass as 'root' to the\n\t * \t\tconstructor or the .clipAction method of AnimationMixer.\n\t *\n\t * \t-\tInstead pass this object as 'root'.\n\t *\n\t * \t-\tYou can also add and remove objects later when the mixer\n\t * \t\tis running.\n\t *\n\t * Note:\n\t *\n\t * \tObjects of this class appear as one object to the mixer,\n\t * \tso cache control of the individual objects must be done\n\t * \ton the group.\n\t *\n\t * Limitation:\n\t *\n\t * \t- \tThe animated properties must be compatible among the\n\t * \t\tall objects in the group.\n\t *\n\t * -\tA single property can either be controlled through a\n\t * \ttarget group or directly, but not both.\n\t *\n\t * @author tschw\n\t */\n\n\tfunction AnimationObjectGroup( var_args ) {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\t// cached objects followed by the active ones\n\t\tthis._objects = Array.prototype.slice.call( arguments );\n\n\t\tthis.nCachedObjects_ = 0;\t\t\t// threshold\n\t\t// note: read by PropertyBinding.Composite\n\n\t\tvar indices = {};\n\t\tthis._indicesByUUID = indices;\t\t// for bookkeeping\n\n\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\tindices[ arguments[ i ].uuid ] = i;\n\n\t\t}\n\n\t\tthis._paths = [];\t\t\t\t\t// inside: string\n\t\tthis._parsedPaths = [];\t\t\t\t// inside: { we don't care, here }\n\t\tthis._bindings = []; \t\t\t\t// inside: Array< PropertyBinding >\n\t\tthis._bindingsIndicesByPath = {}; \t// inside: indices in these arrays\n\n\t\tvar scope = this;\n\n\t\tthis.stats = {\n\n\t\t\tobjects: {\n\t\t\t\tget total() { return scope._objects.length; },\n\t\t\t\tget inUse() { return this.total - scope.nCachedObjects_; }\n\t\t\t},\n\n\t\t\tget bindingsPerObject() { return scope._bindings.length; }\n\n\t\t};\n\n\t}\n\n\tAnimationObjectGroup.prototype = {\n\n\t\tconstructor: AnimationObjectGroup,\n\n\t\tisAnimationObjectGroup: true,\n\n\t\tadd: function( var_args ) {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tpaths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index === undefined ) {\n\n\t\t\t\t\t// unknown object -> add it to the ACTIVE region\n\n\t\t\t\t\tindex = nObjects ++;\n\t\t\t\t\tindicesByUUID[ uuid ] = index;\n\t\t\t\t\tobjects.push( object );\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tbindings[ j ].push(\n\t\t\t\t\t\t\t\tnew PropertyBinding(\n\t\t\t\t\t\t\t\t\tobject, paths[ j ], parsedPaths[ j ] ) );\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( index < nCachedObjects ) {\n\n\t\t\t\t\tvar knownObject = objects[ index ];\n\n\t\t\t\t\t// move existing object to the ACTIVE region\n\n\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ];\n\n\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = firstActiveIndex;\n\t\t\t\t\tobjects[ firstActiveIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\n\t\t\t\t\t\tif ( binding === undefined ) {\n\n\t\t\t\t\t\t\t// since we do not bother to create new bindings\n\t\t\t\t\t\t\t// for objects that are cached, the binding may\n\t\t\t\t\t\t\t// or may not exist\n\n\t\t\t\t\t\t\tbinding = new PropertyBinding(\n\t\t\t\t\t\t\t\t\tobject, paths[ j ], parsedPaths[ j ] );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t} else if ( objects[ index ] !== knownObject) {\n\n\t\t\t\t\tconsole.error( \"Different objects with the same UUID \" +\n\t\t\t\t\t\t\t\"detected. Clean the caches or recreate your \" +\n\t\t\t\t\t\t\t\"infrastructure when reloading scenes...\" );\n\n\t\t\t\t} // else the object is already where we want it to be\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\tremove: function( var_args ) {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined && index >= nCachedObjects ) {\n\n\t\t\t\t\t// move existing object into the CACHED region\n\n\t\t\t\t\tvar lastCachedIndex = nCachedObjects ++,\n\t\t\t\t\t\tfirstActiveObject = objects[ lastCachedIndex ];\n\n\t\t\t\t\tindicesByUUID[ firstActiveObject.uuid ] = index;\n\t\t\t\t\tobjects[ index ] = firstActiveObject;\n\n\t\t\t\t\tindicesByUUID[ uuid ] = lastCachedIndex;\n\t\t\t\t\tobjects[ lastCachedIndex ] = object;\n\n\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\tfirstActive = bindingsForPath[ lastCachedIndex ],\n\t\t\t\t\t\t\tbinding = bindingsForPath[ index ];\n\n\t\t\t\t\t\tbindingsForPath[ index ] = firstActive;\n\t\t\t\t\t\tbindingsForPath[ lastCachedIndex ] = binding;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// remove & forget\n\t\tuncache: function( var_args ) {\n\n\t\t\tvar objects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tindicesByUUID = this._indicesByUUID,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = bindings.length;\n\n\t\t\tfor ( var i = 0, n = arguments.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = arguments[ i ],\n\t\t\t\t\tuuid = object.uuid,\n\t\t\t\t\tindex = indicesByUUID[ uuid ];\n\n\t\t\t\tif ( index !== undefined ) {\n\n\t\t\t\t\tdelete indicesByUUID[ uuid ];\n\n\t\t\t\t\tif ( index < nCachedObjects ) {\n\n\t\t\t\t\t\t// object is cached, shrink the CACHED region\n\n\t\t\t\t\t\tvar firstActiveIndex = -- nCachedObjects,\n\t\t\t\t\t\t\tlastCachedObject = objects[ firstActiveIndex ],\n\t\t\t\t\t\t\tlastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\t// last cached object takes this object's place\n\t\t\t\t\t\tindicesByUUID[ lastCachedObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastCachedObject;\n\n\t\t\t\t\t\t// last object goes to the activated slot and pop\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = firstActiveIndex;\n\t\t\t\t\t\tobjects[ firstActiveIndex ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ],\n\t\t\t\t\t\t\t\tlastCached = bindingsForPath[ firstActiveIndex ],\n\t\t\t\t\t\t\t\tlast = bindingsForPath[ lastIndex ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = lastCached;\n\t\t\t\t\t\t\tbindingsForPath[ firstActiveIndex ] = last;\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// object is active, just swap with the last and pop\n\n\t\t\t\t\t\tvar lastIndex = -- nObjects,\n\t\t\t\t\t\t\tlastObject = objects[ lastIndex ];\n\n\t\t\t\t\t\tindicesByUUID[ lastObject.uuid ] = index;\n\t\t\t\t\t\tobjects[ index ] = lastObject;\n\t\t\t\t\t\tobjects.pop();\n\n\t\t\t\t\t\t// accounting is done, now do the same for all bindings\n\n\t\t\t\t\t\tfor ( var j = 0, m = nBindings; j !== m; ++ j ) {\n\n\t\t\t\t\t\t\tvar bindingsForPath = bindings[ j ];\n\n\t\t\t\t\t\t\tbindingsForPath[ index ] = bindingsForPath[ lastIndex ];\n\t\t\t\t\t\t\tbindingsForPath.pop();\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t} // cached or active\n\n\t\t\t\t} // if object is known\n\n\t\t\t} // for arguments\n\n\t\t\tthis.nCachedObjects_ = nCachedObjects;\n\n\t\t},\n\n\t\t// Internal interface used by befriended PropertyBinding.Composite:\n\n\t\tsubscribe_: function( path, parsedPath ) {\n\t\t\t// returns an array of bindings for the given path that is changed\n\t\t\t// according to the contained objects in the group\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ],\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( index !== undefined ) return bindings[ index ];\n\n\t\t\tvar paths = this._paths,\n\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\tobjects = this._objects,\n\t\t\t\tnObjects = objects.length,\n\t\t\t\tnCachedObjects = this.nCachedObjects_,\n\t\t\t\tbindingsForPath = new Array( nObjects );\n\n\t\t\tindex = bindings.length;\n\n\t\t\tindicesByPath[ path ] = index;\n\n\t\t\tpaths.push( path );\n\t\t\tparsedPaths.push( parsedPath );\n\t\t\tbindings.push( bindingsForPath );\n\n\t\t\tfor ( var i = nCachedObjects,\n\t\t\t\t\tn = objects.length; i !== n; ++ i ) {\n\n\t\t\t\tvar object = objects[ i ];\n\n\t\t\t\tbindingsForPath[ i ] =\n\t\t\t\t\t\tnew PropertyBinding( object, path, parsedPath );\n\n\t\t\t}\n\n\t\t\treturn bindingsForPath;\n\n\t\t},\n\n\t\tunsubscribe_: function( path ) {\n\t\t\t// tells the group to forget about a property path and no longer\n\t\t\t// update the array previously obtained with 'subscribe_'\n\n\t\t\tvar indicesByPath = this._bindingsIndicesByPath,\n\t\t\t\tindex = indicesByPath[ path ];\n\n\t\t\tif ( index !== undefined ) {\n\n\t\t\t\tvar paths = this._paths,\n\t\t\t\t\tparsedPaths = this._parsedPaths,\n\t\t\t\t\tbindings = this._bindings,\n\t\t\t\t\tlastBindingsIndex = bindings.length - 1,\n\t\t\t\t\tlastBindings = bindings[ lastBindingsIndex ],\n\t\t\t\t\tlastBindingsPath = path[ lastBindingsIndex ];\n\n\t\t\t\tindicesByPath[ lastBindingsPath ] = index;\n\n\t\t\t\tbindings[ index ] = lastBindings;\n\t\t\t\tbindings.pop();\n\n\t\t\t\tparsedPaths[ index ] = parsedPaths[ lastBindingsIndex ];\n\t\t\t\tparsedPaths.pop();\n\n\t\t\t\tpaths[ index ] = paths[ lastBindingsIndex ];\n\t\t\t\tpaths.pop();\n\n\t\t\t}\n\n\t\t}\n\n\t};\n\n\t/**\n\t *\n\t * Action provided by AnimationMixer for scheduling clip playback on specific\n\t * objects.\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t *\n\t */\n\n\tfunction AnimationAction( mixer, clip, localRoot ) {\n\n\t\tthis._mixer = mixer;\n\t\tthis._clip = clip;\n\t\tthis._localRoot = localRoot || null;\n\n\t\tvar tracks = clip.tracks,\n\t\t\tnTracks = tracks.length,\n\t\t\tinterpolants = new Array( nTracks );\n\n\t\tvar interpolantSettings = {\n\t\t\t\tendingStart: \tZeroCurvatureEnding,\n\t\t\t\tendingEnd:\t\tZeroCurvatureEnding\n\t\t};\n\n\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\tvar interpolant = tracks[ i ].createInterpolant( null );\n\t\t\tinterpolants[ i ] = interpolant;\n\t\t\tinterpolant.settings = interpolantSettings;\n\n\t\t}\n\n\t\tthis._interpolantSettings = interpolantSettings;\n\n\t\tthis._interpolants = interpolants;\t// bound by the mixer\n\n\t\t// inside: PropertyMixer (managed by the mixer)\n\t\tthis._propertyBindings = new Array( nTracks );\n\n\t\tthis._cacheIndex = null;\t\t\t// for the memory manager\n\t\tthis._byClipCacheIndex = null;\t\t// for the memory manager\n\n\t\tthis._timeScaleInterpolant = null;\n\t\tthis._weightInterpolant = null;\n\n\t\tthis.loop = LoopRepeat;\n\t\tthis._loopCount = -1;\n\n\t\t// global mixer time when the action is to be started\n\t\t// it's set back to 'null' upon start of the action\n\t\tthis._startTime = null;\n\n\t\t// scaled local time of the action\n\t\t// gets clamped or wrapped to 0..clip.duration according to loop\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1;\n\t\tthis._effectiveTimeScale = 1;\n\n\t\tthis.weight = 1;\n\t\tthis._effectiveWeight = 1;\n\n\t\tthis.repetitions = Infinity; \t\t// no. of repetitions when looping\n\n\t\tthis.paused = false;\t\t\t\t// false -> zero effective time scale\n\t\tthis.enabled = true;\t\t\t\t// true -> zero effective weight\n\n\t\tthis.clampWhenFinished \t= false;\t// keep feeding the last frame?\n\n\t\tthis.zeroSlopeAtStart \t= true;\t\t// for smooth interpolation w/o separate\n\t\tthis.zeroSlopeAtEnd\t\t= true;\t\t// clips for start, loop and end\n\n\t}\n\n\tAnimationAction.prototype = {\n\n\t\tconstructor: AnimationAction,\n\n\t\t// State & Scheduling\n\n\t\tplay: function() {\n\n\t\t\tthis._mixer._activateAction( this );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstop: function() {\n\n\t\t\tthis._mixer._deactivateAction( this );\n\n\t\t\treturn this.reset();\n\n\t\t},\n\n\t\treset: function() {\n\n\t\t\tthis.paused = false;\n\t\t\tthis.enabled = true;\n\n\t\t\tthis.time = 0;\t\t\t// restart clip\n\t\t\tthis._loopCount = -1;\t// forget previous loops\n\t\t\tthis._startTime = null;\t// forget scheduling\n\n\t\t\treturn this.stopFading().stopWarping();\n\n\t\t},\n\n\t\tisRunning: function() {\n\n\t\t\treturn this.enabled && ! this.paused && this.timeScale !== 0 &&\n\t\t\t\t\tthis._startTime === null && this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\t// return true when play has been called\n\t\tisScheduled: function() {\n\n\t\t\treturn this._mixer._isActiveAction( this );\n\n\t\t},\n\n\t\tstartAt: function( time ) {\n\n\t\t\tthis._startTime = time;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetLoop: function( mode, repetitions ) {\n\n\t\t\tthis.loop = mode;\n\t\t\tthis.repetitions = repetitions;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Weight\n\n\t\t// set the weight stopping any scheduled fading\n\t\t// although .enabled = false yields an effective weight of zero, this\n\t\t// method does *not* change .enabled, because it would be confusing\n\t\tsetEffectiveWeight: function( weight ) {\n\n\t\t\tthis.weight = weight;\n\n\t\t\t// note: same logic as when updated at runtime\n\t\t\tthis._effectiveWeight = this.enabled ? weight : 0;\n\n\t\t\treturn this.stopFading();\n\n\t\t},\n\n\t\t// return the weight considering fading and .enabled\n\t\tgetEffectiveWeight: function() {\n\n\t\t\treturn this._effectiveWeight;\n\n\t\t},\n\n\t\tfadeIn: function( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 0, 1 );\n\n\t\t},\n\n\t\tfadeOut: function( duration ) {\n\n\t\t\treturn this._scheduleFading( duration, 1, 0 );\n\n\t\t},\n\n\t\tcrossFadeFrom: function( fadeOutAction, duration, warp ) {\n\n\t\t\tfadeOutAction.fadeOut( duration );\n\t\t\tthis.fadeIn( duration );\n\n\t\t\tif( warp ) {\n\n\t\t\t\tvar fadeInDuration = this._clip.duration,\n\t\t\t\t\tfadeOutDuration = fadeOutAction._clip.duration,\n\n\t\t\t\t\tstartEndRatio = fadeOutDuration / fadeInDuration,\n\t\t\t\t\tendStartRatio = fadeInDuration / fadeOutDuration;\n\n\t\t\t\tfadeOutAction.warp( 1.0, startEndRatio, duration );\n\t\t\t\tthis.warp( endStartRatio, 1.0, duration );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcrossFadeTo: function( fadeInAction, duration, warp ) {\n\n\t\t\treturn fadeInAction.crossFadeFrom( this, duration, warp );\n\n\t\t},\n\n\t\tstopFading: function() {\n\n\t\t\tvar weightInterpolant = this._weightInterpolant;\n\n\t\t\tif ( weightInterpolant !== null ) {\n\n\t\t\t\tthis._weightInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( weightInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Time Scale Control\n\n\t\t// set the weight stopping any scheduled warping\n\t\t// although .paused = true yields an effective time scale of zero, this\n\t\t// method does *not* change .paused, because it would be confusing\n\t\tsetEffectiveTimeScale: function( timeScale ) {\n\n\t\t\tthis.timeScale = timeScale;\n\t\t\tthis._effectiveTimeScale = this.paused ? 0 :timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\t// return the time scale considering warping and .paused\n\t\tgetEffectiveTimeScale: function() {\n\n\t\t\treturn this._effectiveTimeScale;\n\n\t\t},\n\n\t\tsetDuration: function( duration ) {\n\n\t\t\tthis.timeScale = this._clip.duration / duration;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\tsyncWith: function( action ) {\n\n\t\t\tthis.time = action.time;\n\t\t\tthis.timeScale = action.timeScale;\n\n\t\t\treturn this.stopWarping();\n\n\t\t},\n\n\t\thalt: function( duration ) {\n\n\t\t\treturn this.warp( this._effectiveTimeScale, 0, duration );\n\n\t\t},\n\n\t\twarp: function( startTimeScale, endTimeScale, duration ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._timeScaleInterpolant,\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant(),\n\t\t\t\tthis._timeScaleInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now;\n\t\t\ttimes[ 1 ] = now + duration;\n\n\t\t\tvalues[ 0 ] = startTimeScale / timeScale;\n\t\t\tvalues[ 1 ] = endTimeScale / timeScale;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tstopWarping: function() {\n\n\t\t\tvar timeScaleInterpolant = this._timeScaleInterpolant;\n\n\t\t\tif ( timeScaleInterpolant !== null ) {\n\n\t\t\t\tthis._timeScaleInterpolant = null;\n\t\t\t\tthis._mixer._takeBackControlInterpolant( timeScaleInterpolant );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// Object Accessors\n\n\t\tgetMixer: function() {\n\n\t\t\treturn this._mixer;\n\n\t\t},\n\n\t\tgetClip: function() {\n\n\t\t\treturn this._clip;\n\n\t\t},\n\n\t\tgetRoot: function() {\n\n\t\t\treturn this._localRoot || this._mixer._root;\n\n\t\t},\n\n\t\t// Interna\n\n\t\t_update: function( time, deltaTime, timeDirection, accuIndex ) {\n\t\t\t// called by the mixer\n\n\t\t\tvar startTime = this._startTime;\n\n\t\t\tif ( startTime !== null ) {\n\n\t\t\t\t// check for scheduled start of action\n\n\t\t\t\tvar timeRunning = ( time - startTime ) * timeDirection;\n\t\t\t\tif ( timeRunning < 0 || timeDirection === 0 ) {\n\n\t\t\t\t\treturn; // yet to come / don't decide when delta = 0\n\n\t\t\t\t}\n\n\t\t\t\t// start\n\n\t\t\t\tthis._startTime = null; // unschedule\n\t\t\t\tdeltaTime = timeDirection * timeRunning;\n\n\t\t\t}\n\n\t\t\t// apply time scale and advance time\n\n\t\t\tdeltaTime *= this._updateTimeScale( time );\n\t\t\tvar clipTime = this._updateTime( deltaTime );\n\n\t\t\t// note: _updateTime may disable the action resulting in\n\t\t\t// an effective weight of 0\n\n\t\t\tvar weight = this._updateWeight( time );\n\n\t\t\tif ( weight > 0 ) {\n\n\t\t\t\tvar interpolants = this._interpolants;\n\t\t\t\tvar propertyMixers = this._propertyBindings;\n\n\t\t\t\tfor ( var j = 0, m = interpolants.length; j !== m; ++ j ) {\n\n\t\t\t\t\tinterpolants[ j ].evaluate( clipTime );\n\t\t\t\t\tpropertyMixers[ j ].accumulate( accuIndex, weight );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_updateWeight: function( time ) {\n\n\t\t\tvar weight = 0;\n\n\t\t\tif ( this.enabled ) {\n\n\t\t\t\tweight = this.weight;\n\t\t\t\tvar interpolant = this._weightInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\tweight *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopFading();\n\n\t\t\t\t\t\tif ( interpolantValue === 0 ) {\n\n\t\t\t\t\t\t\t// faded out, disable\n\t\t\t\t\t\t\tthis.enabled = false;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveWeight = weight;\n\t\t\treturn weight;\n\n\t\t},\n\n\t\t_updateTimeScale: function( time ) {\n\n\t\t\tvar timeScale = 0;\n\n\t\t\tif ( ! this.paused ) {\n\n\t\t\t\ttimeScale = this.timeScale;\n\n\t\t\t\tvar interpolant = this._timeScaleInterpolant;\n\n\t\t\t\tif ( interpolant !== null ) {\n\n\t\t\t\t\tvar interpolantValue = interpolant.evaluate( time )[ 0 ];\n\n\t\t\t\t\ttimeScale *= interpolantValue;\n\n\t\t\t\t\tif ( time > interpolant.parameterPositions[ 1 ] ) {\n\n\t\t\t\t\t\tthis.stopWarping();\n\n\t\t\t\t\t\tif ( timeScale === 0 ) {\n\n\t\t\t\t\t\t\t// motion has halted, pause\n\t\t\t\t\t\t\tthis.paused = true;\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\t// warp done - apply final time scale\n\t\t\t\t\t\t\tthis.timeScale = timeScale;\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis._effectiveTimeScale = timeScale;\n\t\t\treturn timeScale;\n\n\t\t},\n\n\t\t_updateTime: function( deltaTime ) {\n\n\t\t\tvar time = this.time + deltaTime;\n\n\t\t\tif ( deltaTime === 0 ) return time;\n\n\t\t\tvar duration = this._clip.duration,\n\n\t\t\t\tloop = this.loop,\n\t\t\t\tloopCount = this._loopCount;\n\n\t\t\tif ( loop === LoopOnce ) {\n\n\t\t\t\tif ( loopCount === -1 ) {\n\t\t\t\t\t// just started\n\n\t\t\t\t\tthis.loopCount = 0;\n\t\t\t\t\tthis._setEndings( true, true, false );\n\n\t\t\t\t}\n\n\t\t\t\thandle_stop: {\n\n\t\t\t\t\tif ( time >= duration ) {\n\n\t\t\t\t\t\ttime = duration;\n\n\t\t\t\t\t} else if ( time < 0 ) {\n\n\t\t\t\t\t\ttime = 0;\n\n\t\t\t\t\t} else break handle_stop;\n\n\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\tdirection: deltaTime < 0 ? -1 : 1\n\t\t\t\t\t} );\n\n\t\t\t\t}\n\n\t\t\t} else { // repetitive Repeat or PingPong\n\n\t\t\t\tvar pingPong = ( loop === LoopPingPong );\n\n\t\t\t\tif ( loopCount === -1 ) {\n\t\t\t\t\t// just started\n\n\t\t\t\t\tif ( deltaTime >= 0 ) {\n\n\t\t\t\t\t\tloopCount = 0;\n\n\t\t\t\t\t\tthis._setEndings(\n\t\t\t\t\t\t\t\ttrue, this.repetitions === 0, pingPong );\n\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// when looping in reverse direction, the initial\n\t\t\t\t\t\t// transition through zero counts as a repetition,\n\t\t\t\t\t\t// so leave loopCount at -1\n\n\t\t\t\t\t\tthis._setEndings(\n\t\t\t\t\t\t\t\tthis.repetitions === 0, true, pingPong );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( time >= duration || time < 0 ) {\n\t\t\t\t\t// wrap around\n\n\t\t\t\t\tvar loopDelta = Math.floor( time / duration ); // signed\n\t\t\t\t\ttime -= duration * loopDelta;\n\n\t\t\t\t\tloopCount += Math.abs( loopDelta );\n\n\t\t\t\t\tvar pending = this.repetitions - loopCount;\n\n\t\t\t\t\tif ( pending < 0 ) {\n\t\t\t\t\t\t// have to stop (switch state, clamp time, fire event)\n\n\t\t\t\t\t\tif ( this.clampWhenFinished ) this.paused = true;\n\t\t\t\t\t\telse this.enabled = false;\n\n\t\t\t\t\t\ttime = deltaTime > 0 ? duration : 0;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'finished', action: this,\n\t\t\t\t\t\t\tdirection: deltaTime > 0 ? 1 : -1\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t} else {\n\t\t\t\t\t\t// keep running\n\n\t\t\t\t\t\tif ( pending === 0 ) {\n\t\t\t\t\t\t\t// entering the last round\n\n\t\t\t\t\t\t\tvar atStart = deltaTime < 0;\n\t\t\t\t\t\t\tthis._setEndings( atStart, ! atStart, pingPong );\n\n\t\t\t\t\t\t} else {\n\n\t\t\t\t\t\t\tthis._setEndings( false, false, pingPong );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tthis._loopCount = loopCount;\n\n\t\t\t\t\t\tthis._mixer.dispatchEvent( {\n\t\t\t\t\t\t\ttype: 'loop', action: this, loopDelta: loopDelta\n\t\t\t\t\t\t} );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tif ( pingPong && ( loopCount & 1 ) === 1 ) {\n\t\t\t\t\t// invert time for the \"pong round\"\n\n\t\t\t\t\tthis.time = time;\n\t\t\t\t\treturn duration - time;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tthis.time = time;\n\t\t\treturn time;\n\n\t\t},\n\n\t\t_setEndings: function( atStart, atEnd, pingPong ) {\n\n\t\t\tvar settings = this._interpolantSettings;\n\n\t\t\tif ( pingPong ) {\n\n\t\t\t\tsettings.endingStart \t= ZeroSlopeEnding;\n\t\t\t\tsettings.endingEnd\t\t= ZeroSlopeEnding;\n\n\t\t\t} else {\n\n\t\t\t\t// assuming for LoopOnce atStart == atEnd == true\n\n\t\t\t\tif ( atStart ) {\n\n\t\t\t\t\tsettings.endingStart = this.zeroSlopeAtStart ?\n\t\t\t\t\t\t\tZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingStart = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t\tif ( atEnd ) {\n\n\t\t\t\t\tsettings.endingEnd = this.zeroSlopeAtEnd ?\n\t\t\t\t\t\t\tZeroSlopeEnding : ZeroCurvatureEnding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsettings.endingEnd \t = WrapAroundEnding;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_scheduleFading: function( duration, weightNow, weightThen ) {\n\n\t\t\tvar mixer = this._mixer, now = mixer.time,\n\t\t\t\tinterpolant = this._weightInterpolant;\n\n\t\t\tif ( interpolant === null ) {\n\n\t\t\t\tinterpolant = mixer._lendControlInterpolant(),\n\t\t\t\tthis._weightInterpolant = interpolant;\n\n\t\t\t}\n\n\t\t\tvar times = interpolant.parameterPositions,\n\t\t\t\tvalues = interpolant.sampleValues;\n\n\t\t\ttimes[ 0 ] = now; \t\t\t\tvalues[ 0 ] = weightNow;\n\t\t\ttimes[ 1 ] = now + duration;\tvalues[ 1 ] = weightThen;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t *\n\t * Player for AnimationClips.\n\t *\n\t *\n\t * @author Ben Houston / http://clara.io/\n\t * @author David Sarno / http://lighthaus.us/\n\t * @author tschw\n\t */\n\n\tfunction AnimationMixer( root ) {\n\n\t\tthis._root = root;\n\t\tthis._initMemoryManager();\n\t\tthis._accuIndex = 0;\n\n\t\tthis.time = 0;\n\n\t\tthis.timeScale = 1.0;\n\n\t}\n\n\tObject.assign( AnimationMixer.prototype, EventDispatcher.prototype, {\n\n\t\t// return an action for a clip optionally using a custom root target\n\t\t// object (this method allocates a lot of dynamic memory in case a\n\t\t// previously unknown clip/root combination is specified)\n\t\tclipAction: function( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject !== null ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ],\n\t\t\t\tprototypeAction = null;\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\tvar existingAction =\n\t\t\t\t\t\tactionsForClip.actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( existingAction !== undefined ) {\n\n\t\t\t\t\treturn existingAction;\n\n\t\t\t\t}\n\n\t\t\t\t// we know the clip, so we don't have to parse all\n\t\t\t\t// the bindings again but can just copy\n\t\t\t\tprototypeAction = actionsForClip.knownActions[ 0 ];\n\n\t\t\t\t// also, take the clip from the prototype action\n\t\t\t\tif ( clipObject === null )\n\t\t\t\t\tclipObject = prototypeAction._clip;\n\n\t\t\t}\n\n\t\t\t// clip must be known when specified via string\n\t\t\tif ( clipObject === null ) return null;\n\n\t\t\t// allocate all resources required to run it\n\t\t\tvar newAction = new AnimationAction( this, clipObject, optionalRoot );\n\n\t\t\tthis._bindAction( newAction, prototypeAction );\n\n\t\t\t// and make the action known to the memory manager\n\t\t\tthis._addInactiveAction( newAction, clipUuid, rootUuid );\n\n\t\t\treturn newAction;\n\n\t\t},\n\n\t\t// get an existing action\n\t\texistingAction: function( clip, optionalRoot ) {\n\n\t\t\tvar root = optionalRoot || this._root,\n\t\t\t\trootUuid = root.uuid,\n\n\t\t\t\tclipObject = typeof clip === 'string' ?\n\t\t\t\t\t\tAnimationClip.findByName( root, clip ) : clip,\n\n\t\t\t\tclipUuid = clipObject ? clipObject.uuid : clip,\n\n\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\treturn actionsForClip.actionByRoot[ rootUuid ] || null;\n\n\t\t\t}\n\n\t\t\treturn null;\n\n\t\t},\n\n\t\t// deactivates all previously scheduled actions\n\t\tstopAllAction: function() {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\t\t\t\tbindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tthis._nActiveActions = 0;\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tactions[ i ].reset();\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].useCount = 0;\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// advance the time and update apply the animation\n\t\tupdate: function( deltaTime ) {\n\n\t\t\tdeltaTime *= this.timeScale;\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tnActions = this._nActiveActions,\n\n\t\t\t\ttime = this.time += deltaTime,\n\t\t\t\ttimeDirection = Math.sign( deltaTime ),\n\n\t\t\t\taccuIndex = this._accuIndex ^= 1;\n\n\t\t\t// run active actions\n\n\t\t\tfor ( var i = 0; i !== nActions; ++ i ) {\n\n\t\t\t\tvar action = actions[ i ];\n\n\t\t\t\tif ( action.enabled ) {\n\n\t\t\t\t\taction._update( time, deltaTime, timeDirection, accuIndex );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// update scene graph\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tnBindings = this._nActiveBindings;\n\n\t\t\tfor ( var i = 0; i !== nBindings; ++ i ) {\n\n\t\t\t\tbindings[ i ].apply( accuIndex );\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// return this mixer's root target object\n\t\tgetRoot: function() {\n\n\t\t\treturn this._root;\n\n\t\t},\n\n\t\t// free all resources specific to a particular clip\n\t\tuncacheClip: function( clip ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tclipUuid = clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip !== undefined ) {\n\n\t\t\t\t// note: just calling _removeInactiveAction would mess up the\n\t\t\t\t// iteration state and also require updating the state we can\n\t\t\t\t// just throw away\n\n\t\t\t\tvar actionsToRemove = actionsForClip.knownActions;\n\n\t\t\t\tfor ( var i = 0, n = actionsToRemove.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar action = actionsToRemove[ i ];\n\n\t\t\t\t\tthis._deactivateAction( action );\n\n\t\t\t\t\tvar cacheIndex = action._cacheIndex,\n\t\t\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ];\n\n\t\t\t\t\taction._cacheIndex = null;\n\t\t\t\t\taction._byClipCacheIndex = null;\n\n\t\t\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\t\t\tactions.pop();\n\n\t\t\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t\t\t}\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t// free all resources specific to a particular root target object\n\t\tuncacheRoot: function( root ) {\n\n\t\t\tvar rootUuid = root.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip;\n\n\t\t\tfor ( var clipUuid in actionsByClip ) {\n\n\t\t\t\tvar actionByRoot = actionsByClip[ clipUuid ].actionByRoot,\n\t\t\t\t\taction = actionByRoot[ rootUuid ];\n\n\t\t\t\tif ( action !== undefined ) {\n\n\t\t\t\t\tthis._deactivateAction( action );\n\t\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingByName !== undefined ) {\n\n\t\t\t\tfor ( var trackName in bindingByName ) {\n\n\t\t\t\t\tvar binding = bindingByName[ trackName ];\n\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t// remove a targeted clip from the cache\n\t\tuncacheAction: function( clip, optionalRoot ) {\n\n\t\t\tvar action = this.existingAction( clip, optionalRoot );\n\n\t\t\tif ( action !== null ) {\n\n\t\t\t\tthis._deactivateAction( action );\n\t\t\t\tthis._removeInactiveAction( action );\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\t// Implementation details:\n\n\tObject.assign( AnimationMixer.prototype, {\n\n\t\t_bindAction: function( action, prototypeAction ) {\n\n\t\t\tvar root = action._localRoot || this._root,\n\t\t\t\ttracks = action._clip.tracks,\n\t\t\t\tnTracks = tracks.length,\n\t\t\t\tbindings = action._propertyBindings,\n\t\t\t\tinterpolants = action._interpolants,\n\t\t\t\trootUuid = root.uuid,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingsByName = bindingsByRoot[ rootUuid ];\n\n\t\t\tif ( bindingsByName === undefined ) {\n\n\t\t\t\tbindingsByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingsByName;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0; i !== nTracks; ++ i ) {\n\n\t\t\t\tvar track = tracks[ i ],\n\t\t\t\t\ttrackName = track.name,\n\t\t\t\t\tbinding = bindingsByName[ trackName ];\n\n\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t} else {\n\n\t\t\t\t\tbinding = bindings[ i ];\n\n\t\t\t\t\tif ( binding !== undefined ) {\n\n\t\t\t\t\t\t// existing binding, make sure the cache knows\n\n\t\t\t\t\t\tif ( binding._cacheIndex === null ) {\n\n\t\t\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tcontinue;\n\n\t\t\t\t\t}\n\n\t\t\t\t\tvar path = prototypeAction && prototypeAction.\n\t\t\t\t\t\t\t_propertyBindings[ i ].binding.parsedPath;\n\n\t\t\t\t\tbinding = new PropertyMixer(\n\t\t\t\t\t\t\tPropertyBinding.create( root, trackName, path ),\n\t\t\t\t\t\t\ttrack.ValueTypeName, track.getValueSize() );\n\n\t\t\t\t\t++ binding.referenceCount;\n\t\t\t\t\tthis._addInactiveBinding( binding, rootUuid, trackName );\n\n\t\t\t\t\tbindings[ i ] = binding;\n\n\t\t\t\t}\n\n\t\t\t\tinterpolants[ i ].resultBuffer = binding.buffer;\n\n\t\t\t}\n\n\t\t},\n\n\t\t_activateAction: function( action ) {\n\n\t\t\tif ( ! this._isActiveAction( action ) ) {\n\n\t\t\t\tif ( action._cacheIndex === null ) {\n\n\t\t\t\t\t// this action has been forgotten by the cache, but the user\n\t\t\t\t\t// appears to be still using it -> rebind\n\n\t\t\t\t\tvar rootUuid = ( action._localRoot || this._root ).uuid,\n\t\t\t\t\t\tclipUuid = action._clip.uuid,\n\t\t\t\t\t\tactionsForClip = this._actionsByClip[ clipUuid ];\n\n\t\t\t\t\tthis._bindAction( action,\n\t\t\t\t\t\t\tactionsForClip && actionsForClip.knownActions[ 0 ] );\n\n\t\t\t\t\tthis._addInactiveAction( action, clipUuid, rootUuid );\n\n\t\t\t\t}\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// increment reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( binding.useCount ++ === 0 ) {\n\n\t\t\t\t\t\tthis._lendBinding( binding );\n\t\t\t\t\t\tbinding.saveOriginalState();\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._lendAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t_deactivateAction: function( action ) {\n\n\t\t\tif ( this._isActiveAction( action ) ) {\n\n\t\t\t\tvar bindings = action._propertyBindings;\n\n\t\t\t\t// decrement reference counts / sort out state\n\t\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\t\tif ( -- binding.useCount === 0 ) {\n\n\t\t\t\t\t\tbinding.restoreOriginalState();\n\t\t\t\t\t\tthis._takeBackBinding( binding );\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t\tthis._takeBackAction( action );\n\n\t\t\t}\n\n\t\t},\n\n\t\t// Memory manager\n\n\t\t_initMemoryManager: function() {\n\n\t\t\tthis._actions = []; // 'nActiveActions' followed by inactive ones\n\t\t\tthis._nActiveActions = 0;\n\n\t\t\tthis._actionsByClip = {};\n\t\t\t// inside:\n\t\t\t// {\n\t\t\t// \t\tknownActions: Array< AnimationAction >\t- used as prototypes\n\t\t\t// \t\tactionByRoot: AnimationAction\t\t\t- lookup\n\t\t\t// }\n\n\n\t\t\tthis._bindings = []; // 'nActiveBindings' followed by inactive ones\n\t\t\tthis._nActiveBindings = 0;\n\n\t\t\tthis._bindingsByRootAndName = {}; // inside: Map< name, PropertyMixer >\n\n\n\t\t\tthis._controlInterpolants = []; // same game as above\n\t\t\tthis._nActiveControlInterpolants = 0;\n\n\t\t\tvar scope = this;\n\n\t\t\tthis.stats = {\n\n\t\t\t\tactions: {\n\t\t\t\t\tget total() { return scope._actions.length; },\n\t\t\t\t\tget inUse() { return scope._nActiveActions; }\n\t\t\t\t},\n\t\t\t\tbindings: {\n\t\t\t\t\tget total() { return scope._bindings.length; },\n\t\t\t\t\tget inUse() { return scope._nActiveBindings; }\n\t\t\t\t},\n\t\t\t\tcontrolInterpolants: {\n\t\t\t\t\tget total() { return scope._controlInterpolants.length; },\n\t\t\t\t\tget inUse() { return scope._nActiveControlInterpolants; }\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t},\n\n\t\t// Memory management for AnimationAction objects\n\n\t\t_isActiveAction: function( action ) {\n\n\t\t\tvar index = action._cacheIndex;\n\t\t\treturn index !== null && index < this._nActiveActions;\n\n\t\t},\n\n\t\t_addInactiveAction: function( action, clipUuid, rootUuid ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ];\n\n\t\t\tif ( actionsForClip === undefined ) {\n\n\t\t\t\tactionsForClip = {\n\n\t\t\t\t\tknownActions: [ action ],\n\t\t\t\t\tactionByRoot: {}\n\n\t\t\t\t};\n\n\t\t\t\taction._byClipCacheIndex = 0;\n\n\t\t\t\tactionsByClip[ clipUuid ] = actionsForClip;\n\n\t\t\t} else {\n\n\t\t\t\tvar knownActions = actionsForClip.knownActions;\n\n\t\t\t\taction._byClipCacheIndex = knownActions.length;\n\t\t\t\tknownActions.push( action );\n\n\t\t\t}\n\n\t\t\taction._cacheIndex = actions.length;\n\t\t\tactions.push( action );\n\n\t\t\tactionsForClip.actionByRoot[ rootUuid ] = action;\n\n\t\t},\n\n\t\t_removeInactiveAction: function( action ) {\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tlastInactiveAction = actions[ actions.length - 1 ],\n\t\t\t\tcacheIndex = action._cacheIndex;\n\n\t\t\tlastInactiveAction._cacheIndex = cacheIndex;\n\t\t\tactions[ cacheIndex ] = lastInactiveAction;\n\t\t\tactions.pop();\n\n\t\t\taction._cacheIndex = null;\n\n\n\t\t\tvar clipUuid = action._clip.uuid,\n\t\t\t\tactionsByClip = this._actionsByClip,\n\t\t\t\tactionsForClip = actionsByClip[ clipUuid ],\n\t\t\t\tknownActionsForClip = actionsForClip.knownActions,\n\n\t\t\t\tlastKnownAction =\n\t\t\t\t\tknownActionsForClip[ knownActionsForClip.length - 1 ],\n\n\t\t\t\tbyClipCacheIndex = action._byClipCacheIndex;\n\n\t\t\tlastKnownAction._byClipCacheIndex = byClipCacheIndex;\n\t\t\tknownActionsForClip[ byClipCacheIndex ] = lastKnownAction;\n\t\t\tknownActionsForClip.pop();\n\n\t\t\taction._byClipCacheIndex = null;\n\n\n\t\t\tvar actionByRoot = actionsForClip.actionByRoot,\n\t\t\t\trootUuid = ( actions._localRoot || this._root ).uuid;\n\n\t\t\tdelete actionByRoot[ rootUuid ];\n\n\t\t\tif ( knownActionsForClip.length === 0 ) {\n\n\t\t\t\tdelete actionsByClip[ clipUuid ];\n\n\t\t\t}\n\n\t\t\tthis._removeInactiveBindingsForAction( action );\n\n\t\t},\n\n\t\t_removeInactiveBindingsForAction: function( action ) {\n\n\t\t\tvar bindings = action._propertyBindings;\n\t\t\tfor ( var i = 0, n = bindings.length; i !== n; ++ i ) {\n\n\t\t\t\tvar binding = bindings[ i ];\n\n\t\t\t\tif ( -- binding.referenceCount === 0 ) {\n\n\t\t\t\t\tthis._removeInactiveBinding( binding );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendAction: function( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions >| inactive actions ]\n\t\t\t// s a\n\t\t\t// <-swap->\n\t\t\t// a s\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveActions ++,\n\n\t\t\t\tfirstInactiveAction = actions[ lastActiveIndex ];\n\n\t\t\taction._cacheIndex = lastActiveIndex;\n\t\t\tactions[ lastActiveIndex ] = action;\n\n\t\t\tfirstInactiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = firstInactiveAction;\n\n\t\t},\n\n\t\t_takeBackAction: function( action ) {\n\n\t\t\t// [ active actions | inactive actions ]\n\t\t\t// [ active actions |< inactive actions ]\n\t\t\t// a s\n\t\t\t// <-swap->\n\t\t\t// s a\n\n\t\t\tvar actions = this._actions,\n\t\t\t\tprevIndex = action._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveActions,\n\n\t\t\t\tlastActiveAction = actions[ firstInactiveIndex ];\n\n\t\t\taction._cacheIndex = firstInactiveIndex;\n\t\t\tactions[ firstInactiveIndex ] = action;\n\n\t\t\tlastActiveAction._cacheIndex = prevIndex;\n\t\t\tactions[ prevIndex ] = lastActiveAction;\n\n\t\t},\n\n\t\t// Memory management for PropertyMixer objects\n\n\t\t_addInactiveBinding: function( binding, rootUuid, trackName ) {\n\n\t\t\tvar bindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tbindings = this._bindings;\n\n\t\t\tif ( bindingByName === undefined ) {\n\n\t\t\t\tbindingByName = {};\n\t\t\t\tbindingsByRoot[ rootUuid ] = bindingByName;\n\n\t\t\t}\n\n\t\t\tbindingByName[ trackName ] = binding;\n\n\t\t\tbinding._cacheIndex = bindings.length;\n\t\t\tbindings.push( binding );\n\n\t\t},\n\n\t\t_removeInactiveBinding: function( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tpropBinding = binding.binding,\n\t\t\t\trootUuid = propBinding.rootNode.uuid,\n\t\t\t\ttrackName = propBinding.path,\n\t\t\t\tbindingsByRoot = this._bindingsByRootAndName,\n\t\t\t\tbindingByName = bindingsByRoot[ rootUuid ],\n\n\t\t\t\tlastInactiveBinding = bindings[ bindings.length - 1 ],\n\t\t\t\tcacheIndex = binding._cacheIndex;\n\n\t\t\tlastInactiveBinding._cacheIndex = cacheIndex;\n\t\t\tbindings[ cacheIndex ] = lastInactiveBinding;\n\t\t\tbindings.pop();\n\n\t\t\tdelete bindingByName[ trackName ];\n\n\t\t\tremove_empty_map: {\n\n\t\t\t\tfor ( var _ in bindingByName ) break remove_empty_map;\n\n\t\t\t\tdelete bindingsByRoot[ rootUuid ];\n\n\t\t\t}\n\n\t\t},\n\n\t\t_lendBinding: function( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tlastActiveIndex = this._nActiveBindings ++,\n\n\t\t\t\tfirstInactiveBinding = bindings[ lastActiveIndex ];\n\n\t\t\tbinding._cacheIndex = lastActiveIndex;\n\t\t\tbindings[ lastActiveIndex ] = binding;\n\n\t\t\tfirstInactiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = firstInactiveBinding;\n\n\t\t},\n\n\t\t_takeBackBinding: function( binding ) {\n\n\t\t\tvar bindings = this._bindings,\n\t\t\t\tprevIndex = binding._cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveBindings,\n\n\t\t\t\tlastActiveBinding = bindings[ firstInactiveIndex ];\n\n\t\t\tbinding._cacheIndex = firstInactiveIndex;\n\t\t\tbindings[ firstInactiveIndex ] = binding;\n\n\t\t\tlastActiveBinding._cacheIndex = prevIndex;\n\t\t\tbindings[ prevIndex ] = lastActiveBinding;\n\n\t\t},\n\n\n\t\t// Memory management of Interpolants for weight and time scale\n\n\t\t_lendControlInterpolant: function() {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tlastActiveIndex = this._nActiveControlInterpolants ++,\n\t\t\t\tinterpolant = interpolants[ lastActiveIndex ];\n\n\t\t\tif ( interpolant === undefined ) {\n\n\t\t\t\tinterpolant = new LinearInterpolant(\n\t\t\t\t\t\tnew Float32Array( 2 ), new Float32Array( 2 ),\n\t\t\t\t\t\t\t1, this._controlInterpolantsResultBuffer );\n\n\t\t\t\tinterpolant.__cacheIndex = lastActiveIndex;\n\t\t\t\tinterpolants[ lastActiveIndex ] = interpolant;\n\n\t\t\t}\n\n\t\t\treturn interpolant;\n\n\t\t},\n\n\t\t_takeBackControlInterpolant: function( interpolant ) {\n\n\t\t\tvar interpolants = this._controlInterpolants,\n\t\t\t\tprevIndex = interpolant.__cacheIndex,\n\n\t\t\t\tfirstInactiveIndex = -- this._nActiveControlInterpolants,\n\n\t\t\t\tlastActiveInterpolant = interpolants[ firstInactiveIndex ];\n\n\t\t\tinterpolant.__cacheIndex = firstInactiveIndex;\n\t\t\tinterpolants[ firstInactiveIndex ] = interpolant;\n\n\t\t\tlastActiveInterpolant.__cacheIndex = prevIndex;\n\t\t\tinterpolants[ prevIndex ] = lastActiveInterpolant;\n\n\t\t},\n\n\t\t_controlInterpolantsResultBuffer: new Float32Array( 1 )\n\n\t} );\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Uniform( value ) {\n\n\t\tif ( typeof value === 'string' ) {\n\n\t\t\tconsole.warn( 'THREE.Uniform: Type parameter is no longer needed.' );\n\t\t\tvalue = arguments[ 1 ];\n\n\t\t}\n\n\t\tthis.value = value;\n\n\t}\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferGeometry() {\n\n\t\tBufferGeometry.call( this );\n\n\t\tthis.type = 'InstancedBufferGeometry';\n\t\tthis.maxInstancedCount = undefined;\n\n\t}\n\n\tInstancedBufferGeometry.prototype = Object.create( BufferGeometry.prototype );\n\tInstancedBufferGeometry.prototype.constructor = InstancedBufferGeometry;\n\n\tInstancedBufferGeometry.prototype.isInstancedBufferGeometry = true;\n\n\tInstancedBufferGeometry.prototype.addGroup = function ( start, count, materialIndex ) {\n\n\t\tthis.groups.push( {\n\n\t\t\tstart: start,\n\t\t\tcount: count,\n\t\t\tmaterialIndex: materialIndex\n\n\t\t} );\n\n\t};\n\n\tInstancedBufferGeometry.prototype.copy = function ( source ) {\n\n\t\tvar index = source.index;\n\n\t\tif ( index !== null ) {\n\n\t\t\tthis.setIndex( index.clone() );\n\n\t\t}\n\n\t\tvar attributes = source.attributes;\n\n\t\tfor ( var name in attributes ) {\n\n\t\t\tvar attribute = attributes[ name ];\n\t\t\tthis.addAttribute( name, attribute.clone() );\n\n\t\t}\n\n\t\tvar groups = source.groups;\n\n\t\tfor ( var i = 0, l = groups.length; i < l; i ++ ) {\n\n\t\t\tvar group = groups[ i ];\n\t\t\tthis.addGroup( group.start, group.count, group.materialIndex );\n\n\t\t}\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBufferAttribute( interleavedBuffer, itemSize, offset, normalized ) {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.data = interleavedBuffer;\n\t\tthis.itemSize = itemSize;\n\t\tthis.offset = offset;\n\n\t\tthis.normalized = normalized === true;\n\n\t}\n\n\n\tInterleavedBufferAttribute.prototype = {\n\n\t\tconstructor: InterleavedBufferAttribute,\n\n\t\tisInterleavedBufferAttribute: true,\n\n\t\tget count() {\n\n\t\t\treturn this.data.count;\n\n\t\t},\n\n\t\tget array() {\n\n\t\t\treturn this.data.array;\n\n\t\t},\n\n\t\tsetX: function ( index, x ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset ] = x;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetY: function ( index, y ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetZ: function ( index, z ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetW: function ( index, w ) {\n\n\t\t\tthis.data.array[ index * this.data.stride + this.offset + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tgetX: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset ];\n\n\t\t},\n\n\t\tgetY: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 1 ];\n\n\t\t},\n\n\t\tgetZ: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 2 ];\n\n\t\t},\n\n\t\tgetW: function ( index ) {\n\n\t\t\treturn this.data.array[ index * this.data.stride + this.offset + 3 ];\n\n\t\t},\n\n\t\tsetXY: function ( index, x, y ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZ: function ( index, x, y, z ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetXYZW: function ( index, x, y, z, w ) {\n\n\t\t\tindex = index * this.data.stride + this.offset;\n\n\t\t\tthis.data.array[ index + 0 ] = x;\n\t\t\tthis.data.array[ index + 1 ] = y;\n\t\t\tthis.data.array[ index + 2 ] = z;\n\t\t\tthis.data.array[ index + 3 ] = w;\n\n\t\t\treturn this;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InterleavedBuffer( array, stride ) {\n\n\t\tthis.uuid = _Math.generateUUID();\n\n\t\tthis.array = array;\n\t\tthis.stride = stride;\n\t\tthis.count = array !== undefined ? array.length / stride : 0;\n\n\t\tthis.dynamic = false;\n\t\tthis.updateRange = { offset: 0, count: - 1 };\n\n\t\tthis.version = 0;\n\n\t}\n\n\tInterleavedBuffer.prototype = {\n\n\t\tconstructor: InterleavedBuffer,\n\n\t\tisInterleavedBuffer: true,\n\n\t\tset needsUpdate( value ) {\n\n\t\t\tif ( value === true ) this.version ++;\n\n\t\t},\n\n\t\tsetArray: function ( array ) {\n\n\t\t\tif ( Array.isArray( array ) ) {\n\n\t\t\t\tthrow new TypeError( 'THREE.BufferAttribute: array should be a Typed Array.' );\n\n\t\t\t}\n\n\t\t\tthis.count = array !== undefined ? array.length / this.stride : 0;\n\t\t\tthis.array = array;\n\n\t\t},\n\n\t\tsetDynamic: function ( value ) {\n\n\t\t\tthis.dynamic = value;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopy: function ( source ) {\n\n\t\t\tthis.array = new source.array.constructor( source.array );\n\t\t\tthis.count = source.count;\n\t\t\tthis.stride = source.stride;\n\t\t\tthis.dynamic = source.dynamic;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tcopyAt: function ( index1, attribute, index2 ) {\n\n\t\t\tindex1 *= this.stride;\n\t\t\tindex2 *= attribute.stride;\n\n\t\t\tfor ( var i = 0, l = this.stride; i < l; i ++ ) {\n\n\t\t\t\tthis.array[ index1 + i ] = attribute.array[ index2 + i ];\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tset: function ( value, offset ) {\n\n\t\t\tif ( offset === undefined ) offset = 0;\n\n\t\t\tthis.array.set( value, offset );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedInterleavedBuffer( array, stride, meshPerAttribute ) {\n\n\t\tInterleavedBuffer.call( this, array, stride );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedInterleavedBuffer.prototype = Object.create( InterleavedBuffer.prototype );\n\tInstancedInterleavedBuffer.prototype.constructor = InstancedInterleavedBuffer;\n\n\tInstancedInterleavedBuffer.prototype.isInstancedInterleavedBuffer = true;\n\n\tInstancedInterleavedBuffer.prototype.copy = function ( source ) {\n\n\t\tInterleavedBuffer.prototype.copy.call( this, source );\n\n\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author benaadams / https://twitter.com/ben_a_adams\n\t */\n\n\tfunction InstancedBufferAttribute( array, itemSize, meshPerAttribute ) {\n\n\t\tBufferAttribute.call( this, array, itemSize );\n\n\t\tthis.meshPerAttribute = meshPerAttribute || 1;\n\n\t}\n\n\tInstancedBufferAttribute.prototype = Object.create( BufferAttribute.prototype );\n\tInstancedBufferAttribute.prototype.constructor = InstancedBufferAttribute;\n\n\tInstancedBufferAttribute.prototype.isInstancedBufferAttribute = true;\n\n\tInstancedBufferAttribute.prototype.copy = function ( source ) {\n\n\t\tBufferAttribute.prototype.copy.call( this, source );\n\n\t\tthis.meshPerAttribute = source.meshPerAttribute;\n\n\t\treturn this;\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author bhouston / http://clara.io/\n\t * @author stephomi / http://stephaneginier.com/\n\t */\n\n\tfunction Raycaster( origin, direction, near, far ) {\n\n\t\tthis.ray = new Ray( origin, direction );\n\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\tthis.near = near || 0;\n\t\tthis.far = far || Infinity;\n\n\t\tthis.params = {\n\t\t\tMesh: {},\n\t\t\tLine: {},\n\t\t\tLOD: {},\n\t\t\tPoints: { threshold: 1 },\n\t\t\tSprite: {}\n\t\t};\n\n\t\tObject.defineProperties( this.params, {\n\t\t\tPointCloud: {\n\t\t\t\tget: function () {\n\t\t\t\t\tconsole.warn( 'THREE.Raycaster: params.PointCloud has been renamed to params.Points.' );\n\t\t\t\t\treturn this.Points;\n\t\t\t\t}\n\t\t\t}\n\t\t} );\n\n\t}\n\n\tfunction ascSort( a, b ) {\n\n\t\treturn a.distance - b.distance;\n\n\t}\n\n\tfunction intersectObject( object, raycaster, intersects, recursive ) {\n\n\t\tif ( object.visible === false ) return;\n\n\t\tobject.raycast( raycaster, intersects );\n\n\t\tif ( recursive === true ) {\n\n\t\t\tvar children = object.children;\n\n\t\t\tfor ( var i = 0, l = children.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( children[ i ], raycaster, intersects, true );\n\n\t\t\t}\n\n\t\t}\n\n\t}\n\n\t//\n\n\tRaycaster.prototype = {\n\n\t\tconstructor: Raycaster,\n\n\t\tlinePrecision: 1,\n\n\t\tset: function ( origin, direction ) {\n\n\t\t\t// direction is assumed to be normalized (for accurate distance calculations)\n\n\t\t\tthis.ray.set( origin, direction );\n\n\t\t},\n\n\t\tsetFromCamera: function ( coords, camera ) {\n\n\t\t\tif ( (camera && camera.isPerspectiveCamera) ) {\n\n\t\t\t\tthis.ray.origin.setFromMatrixPosition( camera.matrixWorld );\n\t\t\t\tthis.ray.direction.set( coords.x, coords.y, 0.5 ).unproject( camera ).sub( this.ray.origin ).normalize();\n\n\t\t\t} else if ( (camera && camera.isOrthographicCamera) ) {\n\n\t\t\t\tthis.ray.origin.set( coords.x, coords.y, ( camera.near + camera.far ) / ( camera.near - camera.far ) ).unproject( camera ); // set origin in plane of camera\n\t\t\t\tthis.ray.direction.set( 0, 0, - 1 ).transformDirection( camera.matrixWorld );\n\n\t\t\t} else {\n\n\t\t\t\tconsole.error( 'THREE.Raycaster: Unsupported camera type.' );\n\n\t\t\t}\n\n\t\t},\n\n\t\tintersectObject: function ( object, recursive ) {\n\n\t\t\tvar intersects = [];\n\n\t\t\tintersectObject( object, this, intersects, recursive );\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t},\n\n\t\tintersectObjects: function ( objects, recursive ) {\n\n\t\t\tvar intersects = [];\n\n\t\t\tif ( Array.isArray( objects ) === false ) {\n\n\t\t\t\tconsole.warn( 'THREE.Raycaster.intersectObjects: objects is not an Array.' );\n\t\t\t\treturn intersects;\n\n\t\t\t}\n\n\t\t\tfor ( var i = 0, l = objects.length; i < l; i ++ ) {\n\n\t\t\t\tintersectObject( objects[ i ], this, intersects, recursive );\n\n\t\t\t}\n\n\t\t\tintersects.sort( ascSort );\n\n\t\t\treturn intersects;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Clock( autoStart ) {\n\n\t\tthis.autoStart = ( autoStart !== undefined ) ? autoStart : true;\n\n\t\tthis.startTime = 0;\n\t\tthis.oldTime = 0;\n\t\tthis.elapsedTime = 0;\n\n\t\tthis.running = false;\n\n\t}\n\n\tClock.prototype = {\n\n\t\tconstructor: Clock,\n\n\t\tstart: function () {\n\n\t\t\tthis.startTime = ( performance || Date ).now();\n\n\t\t\tthis.oldTime = this.startTime;\n\t\t\tthis.elapsedTime = 0;\n\t\t\tthis.running = true;\n\n\t\t},\n\n\t\tstop: function () {\n\n\t\t\tthis.getElapsedTime();\n\t\t\tthis.running = false;\n\n\t\t},\n\n\t\tgetElapsedTime: function () {\n\n\t\t\tthis.getDelta();\n\t\t\treturn this.elapsedTime;\n\n\t\t},\n\n\t\tgetDelta: function () {\n\n\t\t\tvar diff = 0;\n\n\t\t\tif ( this.autoStart && ! this.running ) {\n\n\t\t\t\tthis.start();\n\n\t\t\t}\n\n\t\t\tif ( this.running ) {\n\n\t\t\t\tvar newTime = ( performance || Date ).now();\n\n\t\t\t\tdiff = ( newTime - this.oldTime ) / 1000;\n\t\t\t\tthis.oldTime = newTime;\n\n\t\t\t\tthis.elapsedTime += diff;\n\n\t\t\t}\n\n\t\t\treturn diff;\n\n\t\t}\n\n\t};\n\n\t/**\n\t * Spline from Tween.js, slightly optimized (and trashed)\n\t * http://sole.github.com/tween.js/examples/05_spline.html\n\t *\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction Spline( points ) {\n\n\t\tthis.points = points;\n\n\t\tvar c = [], v3 = { x: 0, y: 0, z: 0 },\n\t\tpoint, intPoint, weight, w2, w3,\n\t\tpa, pb, pc, pd;\n\n\t\tthis.initFromArray = function ( a ) {\n\n\t\t\tthis.points = [];\n\n\t\t\tfor ( var i = 0; i < a.length; i ++ ) {\n\n\t\t\t\tthis.points[ i ] = { x: a[ i ][ 0 ], y: a[ i ][ 1 ], z: a[ i ][ 2 ] };\n\n\t\t\t}\n\n\t\t};\n\n\t\tthis.getPoint = function ( k ) {\n\n\t\t\tpoint = ( this.points.length - 1 ) * k;\n\t\t\tintPoint = Math.floor( point );\n\t\t\tweight = point - intPoint;\n\n\t\t\tc[ 0 ] = intPoint === 0 ? intPoint : intPoint - 1;\n\t\t\tc[ 1 ] = intPoint;\n\t\t\tc[ 2 ] = intPoint > this.points.length - 2 ? this.points.length - 1 : intPoint + 1;\n\t\t\tc[ 3 ] = intPoint > this.points.length - 3 ? this.points.length - 1 : intPoint + 2;\n\n\t\t\tpa = this.points[ c[ 0 ] ];\n\t\t\tpb = this.points[ c[ 1 ] ];\n\t\t\tpc = this.points[ c[ 2 ] ];\n\t\t\tpd = this.points[ c[ 3 ] ];\n\n\t\t\tw2 = weight * weight;\n\t\t\tw3 = weight * w2;\n\n\t\t\tv3.x = interpolate( pa.x, pb.x, pc.x, pd.x, weight, w2, w3 );\n\t\t\tv3.y = interpolate( pa.y, pb.y, pc.y, pd.y, weight, w2, w3 );\n\t\t\tv3.z = interpolate( pa.z, pb.z, pc.z, pd.z, weight, w2, w3 );\n\n\t\t\treturn v3;\n\n\t\t};\n\n\t\tthis.getControlPointsArray = function () {\n\n\t\t\tvar i, p, l = this.points.length,\n\t\t\t\tcoords = [];\n\n\t\t\tfor ( i = 0; i < l; i ++ ) {\n\n\t\t\t\tp = this.points[ i ];\n\t\t\t\tcoords[ i ] = [ p.x, p.y, p.z ];\n\n\t\t\t}\n\n\t\t\treturn coords;\n\n\t\t};\n\n\t\t// approximate length by summing linear segments\n\n\t\tthis.getLength = function ( nSubDivisions ) {\n\n\t\t\tvar i, index, nSamples, position,\n\t\t\t\tpoint = 0, intPoint = 0, oldIntPoint = 0,\n\t\t\t\toldPosition = new Vector3(),\n\t\t\t\ttmpVec = new Vector3(),\n\t\t\t\tchunkLengths = [],\n\t\t\t\ttotalLength = 0;\n\n\t\t\t// first point has 0 length\n\n\t\t\tchunkLengths[ 0 ] = 0;\n\n\t\t\tif ( ! nSubDivisions ) nSubDivisions = 100;\n\n\t\t\tnSamples = this.points.length * nSubDivisions;\n\n\t\t\toldPosition.copy( this.points[ 0 ] );\n\n\t\t\tfor ( i = 1; i < nSamples; i ++ ) {\n\n\t\t\t\tindex = i / nSamples;\n\n\t\t\t\tposition = this.getPoint( index );\n\t\t\t\ttmpVec.copy( position );\n\n\t\t\t\ttotalLength += tmpVec.distanceTo( oldPosition );\n\n\t\t\t\toldPosition.copy( position );\n\n\t\t\t\tpoint = ( this.points.length - 1 ) * index;\n\t\t\t\tintPoint = Math.floor( point );\n\n\t\t\t\tif ( intPoint !== oldIntPoint ) {\n\n\t\t\t\t\tchunkLengths[ intPoint ] = totalLength;\n\t\t\t\t\toldIntPoint = intPoint;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\t// last point ends with total length\n\n\t\t\tchunkLengths[ chunkLengths.length ] = totalLength;\n\n\t\t\treturn { chunks: chunkLengths, total: totalLength };\n\n\t\t};\n\n\t\tthis.reparametrizeByArcLength = function ( samplingCoef ) {\n\n\t\t\tvar i, j,\n\t\t\t\tindex, indexCurrent, indexNext,\n\t\t\t\trealDistance,\n\t\t\t\tsampling, position,\n\t\t\t\tnewpoints = [],\n\t\t\t\ttmpVec = new Vector3(),\n\t\t\t\tsl = this.getLength();\n\n\t\t\tnewpoints.push( tmpVec.copy( this.points[ 0 ] ).clone() );\n\n\t\t\tfor ( i = 1; i < this.points.length; i ++ ) {\n\n\t\t\t\t//tmpVec.copy( this.points[ i - 1 ] );\n\t\t\t\t//linearDistance = tmpVec.distanceTo( this.points[ i ] );\n\n\t\t\t\trealDistance = sl.chunks[ i ] - sl.chunks[ i - 1 ];\n\n\t\t\t\tsampling = Math.ceil( samplingCoef * realDistance / sl.total );\n\n\t\t\t\tindexCurrent = ( i - 1 ) / ( this.points.length - 1 );\n\t\t\t\tindexNext = i / ( this.points.length - 1 );\n\n\t\t\t\tfor ( j = 1; j < sampling - 1; j ++ ) {\n\n\t\t\t\t\tindex = indexCurrent + j * ( 1 / sampling ) * ( indexNext - indexCurrent );\n\n\t\t\t\t\tposition = this.getPoint( index );\n\t\t\t\t\tnewpoints.push( tmpVec.copy( position ).clone() );\n\n\t\t\t\t}\n\n\t\t\t\tnewpoints.push( tmpVec.copy( this.points[ i ] ).clone() );\n\n\t\t\t}\n\n\t\t\tthis.points = newpoints;\n\n\t\t};\n\n\t\t// Catmull-Rom\n\n\t\tfunction interpolate( p0, p1, p2, p3, t, t2, t3 ) {\n\n\t\t\tvar v0 = ( p2 - p0 ) * 0.5,\n\t\t\t\tv1 = ( p3 - p1 ) * 0.5;\n\n\t\t\treturn ( 2 * ( p1 - p2 ) + v0 + v1 ) * t3 + ( - 3 * ( p1 - p2 ) - 2 * v0 - v1 ) * t2 + v0 * t + p1;\n\n\t\t}\n\n\t}\n\n\t/**\n\t * @author bhouston / http://clara.io\n\t * @author WestLangley / http://github.com/WestLangley\n\t *\n\t * Ref: https://en.wikipedia.org/wiki/Spherical_coordinate_system\n\t *\n\t * The poles (phi) are at the positive and negative y axis.\n\t * The equator starts at positive z.\n\t */\n\n\tfunction Spherical( radius, phi, theta ) {\n\n\t\tthis.radius = ( radius !== undefined ) ? radius : 1.0;\n\t\tthis.phi = ( phi !== undefined ) ? phi : 0; // up / down towards top and bottom pole\n\t\tthis.theta = ( theta !== undefined ) ? theta : 0; // around the equator of the sphere\n\n\t\treturn this;\n\n\t}\n\n\tSpherical.prototype = {\n\n\t\tconstructor: Spherical,\n\n\t\tset: function ( radius, phi, theta ) {\n\n\t\t\tthis.radius = radius;\n\t\t\tthis.phi = phi;\n\t\t\tthis.theta = theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tclone: function () {\n\n\t\t\treturn new this.constructor().copy( this );\n\n\t\t},\n\n\t\tcopy: function ( other ) {\n\n\t\t\tthis.radius = other.radius;\n\t\t\tthis.phi = other.phi;\n\t\t\tthis.theta = other.theta;\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\t// restrict phi to be betwee EPS and PI-EPS\n\t\tmakeSafe: function() {\n\n\t\t\tvar EPS = 0.000001;\n\t\t\tthis.phi = Math.max( EPS, Math.min( Math.PI - EPS, this.phi ) );\n\n\t\t\treturn this;\n\n\t\t},\n\n\t\tsetFromVector3: function( vec3 ) {\n\n\t\t\tthis.radius = vec3.length();\n\n\t\t\tif ( this.radius === 0 ) {\n\n\t\t\t\tthis.theta = 0;\n\t\t\t\tthis.phi = 0;\n\n\t\t\t} else {\n\n\t\t\t\tthis.theta = Math.atan2( vec3.x, vec3.z ); // equator angle around y-up axis\n\t\t\t\tthis.phi = Math.acos( _Math.clamp( vec3.y / this.radius, - 1, 1 ) ); // polar angle\n\n\t\t\t}\n\n\t\t\treturn this;\n\n\t\t},\n\n\t};\n\n\t/**\r\n\t * @author alteredq / http://alteredqualia.com/\r\n\t */\r\n\r\n\tfunction MorphBlendMesh( geometry, material ) {\n\r\n\t\tMesh.call( this, geometry, material );\r\n\r\n\t\tthis.animationsMap = {};\r\n\t\tthis.animationsList = [];\r\n\r\n\t\t// prepare default animation\r\n\t\t// (all frames played together in 1 second)\r\n\r\n\t\tvar numFrames = this.geometry.morphTargets.length;\r\n\r\n\t\tvar name = \"__default\";\r\n\r\n\t\tvar startFrame = 0;\r\n\t\tvar endFrame = numFrames - 1;\r\n\r\n\t\tvar fps = numFrames / 1;\r\n\r\n\t\tthis.createAnimation( name, startFrame, endFrame, fps );\r\n\t\tthis.setAnimationWeight( name, 1 );\r\n\r\n\t}\r\n\r\n\tMorphBlendMesh.prototype = Object.create( Mesh.prototype );\r\n\tMorphBlendMesh.prototype.constructor = MorphBlendMesh;\r\n\r\n\tMorphBlendMesh.prototype.createAnimation = function ( name, start, end, fps ) {\r\n\r\n\t\tvar animation = {\r\n\r\n\t\t\tstart: start,\r\n\t\t\tend: end,\r\n\r\n\t\t\tlength: end - start + 1,\r\n\r\n\t\t\tfps: fps,\r\n\t\t\tduration: ( end - start ) / fps,\r\n\r\n\t\t\tlastFrame: 0,\r\n\t\t\tcurrentFrame: 0,\r\n\r\n\t\t\tactive: false,\r\n\r\n\t\t\ttime: 0,\r\n\t\t\tdirection: 1,\r\n\t\t\tweight: 1,\r\n\r\n\t\t\tdirectionBackwards: false,\r\n\t\t\tmirroredLoop: false\r\n\r\n\t\t};\r\n\r\n\t\tthis.animationsMap[ name ] = animation;\r\n\t\tthis.animationsList.push( animation );\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.autoCreateAnimations = function ( fps ) {\r\n\r\n\t\tvar pattern = /([a-z]+)_?(\\d+)/i;\r\n\r\n\t\tvar firstAnimation, frameRanges = {};\r\n\r\n\t\tvar geometry = this.geometry;\r\n\r\n\t\tfor ( var i = 0, il = geometry.morphTargets.length; i < il; i ++ ) {\r\n\r\n\t\t\tvar morph = geometry.morphTargets[ i ];\r\n\t\t\tvar chunks = morph.name.match( pattern );\r\n\r\n\t\t\tif ( chunks && chunks.length > 1 ) {\r\n\r\n\t\t\t\tvar name = chunks[ 1 ];\r\n\r\n\t\t\t\tif ( ! frameRanges[ name ] ) frameRanges[ name ] = { start: Infinity, end: - Infinity };\r\n\r\n\t\t\t\tvar range = frameRanges[ name ];\r\n\r\n\t\t\t\tif ( i < range.start ) range.start = i;\r\n\t\t\t\tif ( i > range.end ) range.end = i;\r\n\r\n\t\t\t\tif ( ! firstAnimation ) firstAnimation = name;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t\tfor ( var name in frameRanges ) {\r\n\r\n\t\t\tvar range = frameRanges[ name ];\r\n\t\t\tthis.createAnimation( name, range.start, range.end, fps );\r\n\r\n\t\t}\r\n\r\n\t\tthis.firstAnimation = firstAnimation;\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationDirectionForward = function ( name ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.direction = 1;\r\n\t\t\tanimation.directionBackwards = false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationDirectionBackward = function ( name ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.direction = - 1;\r\n\t\t\tanimation.directionBackwards = true;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationFPS = function ( name, fps ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.fps = fps;\r\n\t\t\tanimation.duration = ( animation.end - animation.start ) / animation.fps;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationDuration = function ( name, duration ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.duration = duration;\r\n\t\t\tanimation.fps = ( animation.end - animation.start ) / animation.duration;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationWeight = function ( name, weight ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.weight = weight;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.setAnimationTime = function ( name, time ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.time = time;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.getAnimationTime = function ( name ) {\r\n\r\n\t\tvar time = 0;\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\ttime = animation.time;\r\n\r\n\t\t}\r\n\r\n\t\treturn time;\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.getAnimationDuration = function ( name ) {\r\n\r\n\t\tvar duration = - 1;\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tduration = animation.duration;\r\n\r\n\t\t}\r\n\r\n\t\treturn duration;\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.playAnimation = function ( name ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.time = 0;\r\n\t\t\tanimation.active = true;\r\n\r\n\t\t} else {\r\n\r\n\t\t\tconsole.warn( \"THREE.MorphBlendMesh: animation[\" + name + \"] undefined in .playAnimation()\" );\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.stopAnimation = function ( name ) {\r\n\r\n\t\tvar animation = this.animationsMap[ name ];\r\n\r\n\t\tif ( animation ) {\r\n\r\n\t\t\tanimation.active = false;\r\n\r\n\t\t}\r\n\r\n\t};\r\n\r\n\tMorphBlendMesh.prototype.update = function ( delta ) {\r\n\r\n\t\tfor ( var i = 0, il = this.animationsList.length; i < il; i ++ ) {\r\n\r\n\t\t\tvar animation = this.animationsList[ i ];\r\n\r\n\t\t\tif ( ! animation.active ) continue;\r\n\r\n\t\t\tvar frameTime = animation.duration / animation.length;\r\n\r\n\t\t\tanimation.time += animation.direction * delta;\r\n\r\n\t\t\tif ( animation.mirroredLoop ) {\r\n\r\n\t\t\t\tif ( animation.time > animation.duration || animation.time < 0 ) {\r\n\r\n\t\t\t\t\tanimation.direction *= - 1;\r\n\r\n\t\t\t\t\tif ( animation.time > animation.duration ) {\r\n\r\n\t\t\t\t\t\tanimation.time = animation.duration;\r\n\t\t\t\t\t\tanimation.directionBackwards = true;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t\tif ( animation.time < 0 ) {\r\n\r\n\t\t\t\t\t\tanimation.time = 0;\r\n\t\t\t\t\t\tanimation.directionBackwards = false;\r\n\r\n\t\t\t\t\t}\r\n\r\n\t\t\t\t}\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tanimation.time = animation.time % animation.duration;\r\n\r\n\t\t\t\tif ( animation.time < 0 ) animation.time += animation.duration;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tvar keyframe = animation.start + _Math.clamp( Math.floor( animation.time / frameTime ), 0, animation.length - 1 );\r\n\t\t\tvar weight = animation.weight;\r\n\r\n\t\t\tif ( keyframe !== animation.currentFrame ) {\r\n\r\n\t\t\t\tthis.morphTargetInfluences[ animation.lastFrame ] = 0;\r\n\t\t\t\tthis.morphTargetInfluences[ animation.currentFrame ] = 1 * weight;\r\n\r\n\t\t\t\tthis.morphTargetInfluences[ keyframe ] = 0;\r\n\r\n\t\t\t\tanimation.lastFrame = animation.currentFrame;\r\n\t\t\t\tanimation.currentFrame = keyframe;\r\n\r\n\t\t\t}\r\n\r\n\t\t\tvar mix = ( animation.time % frameTime ) / frameTime;\r\n\r\n\t\t\tif ( animation.directionBackwards ) mix = 1 - mix;\r\n\r\n\t\t\tif ( animation.currentFrame !== animation.lastFrame ) {\r\n\r\n\t\t\t\tthis.morphTargetInfluences[ animation.currentFrame ] = mix * weight;\r\n\t\t\t\tthis.morphTargetInfluences[ animation.lastFrame ] = ( 1 - mix ) * weight;\r\n\r\n\t\t\t} else {\r\n\r\n\t\t\t\tthis.morphTargetInfluences[ animation.currentFrame ] = weight;\r\n\r\n\t\t\t}\r\n\r\n\t\t}\r\n\r\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tfunction ImmediateRenderObject( material ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.material = material;\n\t\tthis.render = function ( renderCallback ) {};\n\n\t}\n\n\tImmediateRenderObject.prototype = Object.create( Object3D.prototype );\n\tImmediateRenderObject.prototype.constructor = ImmediateRenderObject;\n\n\tImmediateRenderObject.prototype.isImmediateRenderObject = true;\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction VertexNormalsHelper( object, size, hex, linewidth ) {\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xff0000;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( (objGeometry && objGeometry.isGeometry) ) {\n\n\t\t\tnNormals = objGeometry.faces.length * 3;\n\n\t\t} else if ( (objGeometry && objGeometry.isBufferGeometry) ) {\n\n\t\t\tnNormals = objGeometry.attributes.normal.count;\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32Attribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\tVertexNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tVertexNormalsHelper.prototype.constructor = VertexNormalsHelper;\n\n\tVertexNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tvar keys = [ 'a', 'b', 'c' ];\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tif ( (objGeometry && objGeometry.isGeometry) ) {\n\n\t\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\t\tvar faces = objGeometry.faces;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\t\tfor ( var j = 0, jl = face.vertexNormals.length; j < jl; j ++ ) {\n\n\t\t\t\t\t\tvar vertex = vertices[ face[ keys[ j ] ] ];\n\n\t\t\t\t\t\tvar normal = face.vertexNormals[ j ];\n\n\t\t\t\t\t\tv1.copy( vertex ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\t}\n\n\t\t\t\t}\n\n\t\t\t} else if ( (objGeometry && objGeometry.isBufferGeometry) ) {\n\n\t\t\t\tvar objPos = objGeometry.attributes.position;\n\n\t\t\t\tvar objNorm = objGeometry.attributes.normal;\n\n\t\t\t\tvar idx = 0;\n\n\t\t\t\t// for simplicity, ignore index and drawcalls, and render every normal\n\n\t\t\t\tfor ( var j = 0, jl = objPos.count; j < jl; j ++ ) {\n\n\t\t\t\t\tv1.set( objPos.getX( j ), objPos.getY( j ), objPos.getZ( j ) ).applyMatrix4( matrixWorld );\n\n\t\t\t\t\tv2.set( objNorm.getX( j ), objNorm.getY( j ), objNorm.getZ( j ) );\n\n\t\t\t\t\tv2.applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\t\tidx = idx + 1;\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t\treturn this;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction SpotLightHelper( light ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = [\n\t\t\t0, 0, 0, 0, 0, 1,\n\t\t\t0, 0, 0, 1, 0, 1,\n\t\t\t0, 0, 0, - 1, 0, 1,\n\t\t\t0, 0, 0, 0, 1, 1,\n\t\t\t0, 0, 0, 0, - 1, 1\n\t\t];\n\n\t\tfor ( var i = 0, j = 1, l = 32; i < l; i ++, j ++ ) {\n\n\t\t\tvar p1 = ( i / l ) * Math.PI * 2;\n\t\t\tvar p2 = ( j / l ) * Math.PI * 2;\n\n\t\t\tpositions.push(\n\t\t\t\tMath.cos( p1 ), Math.sin( p1 ), 1,\n\t\t\t\tMath.cos( p2 ), Math.sin( p2 ), 1\n\t\t\t);\n\n\t\t}\n\n\t\tgeometry.addAttribute( 'position', new Float32Attribute( positions, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.cone = new LineSegments( geometry, material );\n\t\tthis.add( this.cone );\n\n\t\tthis.update();\n\n\t}\n\n\tSpotLightHelper.prototype = Object.create( Object3D.prototype );\n\tSpotLightHelper.prototype.constructor = SpotLightHelper;\n\n\tSpotLightHelper.prototype.dispose = function () {\n\n\t\tthis.cone.geometry.dispose();\n\t\tthis.cone.material.dispose();\n\n\t};\n\n\tSpotLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\t\tvar vector2 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tvar coneLength = this.light.distance ? this.light.distance : 1000;\n\t\t\tvar coneWidth = coneLength * Math.tan( this.light.angle );\n\n\t\t\tthis.cone.scale.set( coneWidth, coneWidth, coneLength );\n\n\t\t\tvector.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tvector2.setFromMatrixPosition( this.light.target.matrixWorld );\n\n\t\t\tthis.cone.lookAt( vector2.sub( vector ) );\n\n\t\t\tthis.cone.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author Sean Griffin / http://twitter.com/sgrif\n\t * @author Michael Guerrero / http://realitymeltdown.com\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author ikerr / http://verold.com\n\t */\n\n\tfunction SkeletonHelper( object ) {\n\n\t\tthis.bones = this.getBoneList( object );\n\n\t\tvar geometry = new Geometry();\n\n\t\tfor ( var i = 0; i < this.bones.length; i ++ ) {\n\n\t\t\tvar bone = this.bones[ i ];\n\n\t\t\tif ( (bone.parent && bone.parent.isBone) ) {\n\n\t\t\t\tgeometry.vertices.push( new Vector3() );\n\t\t\t\tgeometry.vertices.push( new Vector3() );\n\t\t\t\tgeometry.colors.push( new Color( 0, 0, 1 ) );\n\t\t\t\tgeometry.colors.push( new Color( 0, 1, 0 ) );\n\n\t\t\t}\n\n\t\t}\n\n\t\tgeometry.dynamic = true;\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors, depthTest: false, depthWrite: false, transparent: true } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.root = object;\n\n\t\tthis.matrix = object.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.update();\n\n\t}\n\n\n\tSkeletonHelper.prototype = Object.create( LineSegments.prototype );\n\tSkeletonHelper.prototype.constructor = SkeletonHelper;\n\n\tSkeletonHelper.prototype.getBoneList = function( object ) {\n\n\t\tvar boneList = [];\n\n\t\tif ( (object && object.isBone) ) {\n\n\t\t\tboneList.push( object );\n\n\t\t}\n\n\t\tfor ( var i = 0; i < object.children.length; i ++ ) {\n\n\t\t\tboneList.push.apply( boneList, this.getBoneList( object.children[ i ] ) );\n\n\t\t}\n\n\t\treturn boneList;\n\n\t};\n\n\tSkeletonHelper.prototype.update = function () {\n\n\t\tvar geometry = this.geometry;\n\n\t\tvar matrixWorldInv = new Matrix4().getInverse( this.root.matrixWorld );\n\n\t\tvar boneMatrix = new Matrix4();\n\n\t\tvar j = 0;\n\n\t\tfor ( var i = 0; i < this.bones.length; i ++ ) {\n\n\t\t\tvar bone = this.bones[ i ];\n\n\t\t\tif ( (bone.parent && bone.parent.isBone) ) {\n\n\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.matrixWorld );\n\t\t\t\tgeometry.vertices[ j ].setFromMatrixPosition( boneMatrix );\n\n\t\t\t\tboneMatrix.multiplyMatrices( matrixWorldInv, bone.parent.matrixWorld );\n\t\t\t\tgeometry.vertices[ j + 1 ].setFromMatrixPosition( boneMatrix );\n\n\t\t\t\tj += 2;\n\n\t\t\t}\n\n\t\t}\n\n\t\tgeometry.verticesNeedUpdate = true;\n\n\t\tgeometry.computeBoundingSphere();\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction PointLightHelper( light, sphereSize ) {\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tvar geometry = new SphereBufferGeometry( sphereSize, 4, 2 );\n\t\tvar material = new MeshBasicMaterial( { wireframe: true, fog: false } );\n\t\tmaterial.color.copy( this.light.color ).multiplyScalar( this.light.intensity );\n\n\t\tMesh.call( this, geometry, material );\n\n\t\tthis.matrix = this.light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\t/*\n\t\tvar distanceGeometry = new THREE.IcosahedronGeometry( 1, 2 );\n\t\tvar distanceMaterial = new THREE.MeshBasicMaterial( { color: hexColor, fog: false, wireframe: true, opacity: 0.1, transparent: true } );\n\n\t\tthis.lightSphere = new THREE.Mesh( bulbGeometry, bulbMaterial );\n\t\tthis.lightDistance = new THREE.Mesh( distanceGeometry, distanceMaterial );\n\n\t\tvar d = light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\n\t\tthis.add( this.lightDistance );\n\t\t*/\n\n\t}\n\n\tPointLightHelper.prototype = Object.create( Mesh.prototype );\n\tPointLightHelper.prototype.constructor = PointLightHelper;\n\n\tPointLightHelper.prototype.dispose = function () {\n\n\t\tthis.geometry.dispose();\n\t\tthis.material.dispose();\n\n\t};\n\n\tPointLightHelper.prototype.update = function () {\n\n\t\tthis.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );\n\n\t\t/*\n\t\tvar d = this.light.distance;\n\n\t\tif ( d === 0.0 ) {\n\n\t\t\tthis.lightDistance.visible = false;\n\n\t\t} else {\n\n\t\t\tthis.lightDistance.visible = true;\n\t\t\tthis.lightDistance.scale.set( d, d, d );\n\n\t\t}\n\t\t*/\n\n\t};\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction HemisphereLightHelper( light, sphereSize ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.colors = [ new Color(), new Color() ];\n\n\t\tvar geometry = new SphereGeometry( sphereSize, 4, 2 );\n\t\tgeometry.rotateX( - Math.PI / 2 );\n\n\t\tfor ( var i = 0, il = 8; i < il; i ++ ) {\n\n\t\t\tgeometry.faces[ i ].color = this.colors[ i < 4 ? 0 : 1 ];\n\n\t\t}\n\n\t\tvar material = new MeshBasicMaterial( { vertexColors: FaceColors, wireframe: true } );\n\n\t\tthis.lightSphere = new Mesh( geometry, material );\n\t\tthis.add( this.lightSphere );\n\n\t\tthis.update();\n\n\t}\n\n\tHemisphereLightHelper.prototype = Object.create( Object3D.prototype );\n\tHemisphereLightHelper.prototype.constructor = HemisphereLightHelper;\n\n\tHemisphereLightHelper.prototype.dispose = function () {\n\n\t\tthis.lightSphere.geometry.dispose();\n\t\tthis.lightSphere.material.dispose();\n\n\t};\n\n\tHemisphereLightHelper.prototype.update = function () {\n\n\t\tvar vector = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tthis.colors[ 0 ].copy( this.light.color ).multiplyScalar( this.light.intensity );\n\t\t\tthis.colors[ 1 ].copy( this.light.groundColor ).multiplyScalar( this.light.intensity );\n\n\t\t\tthis.lightSphere.lookAt( vector.setFromMatrixPosition( this.light.matrixWorld ).negate() );\n\t\t\tthis.lightSphere.geometry.colorsNeedUpdate = true;\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction GridHelper( size, divisions, color1, color2 ) {\n\n\t\tdivisions = divisions || 1;\n\t\tcolor1 = new Color( color1 !== undefined ? color1 : 0x444444 );\n\t\tcolor2 = new Color( color2 !== undefined ? color2 : 0x888888 );\n\n\t\tvar center = divisions / 2;\n\t\tvar step = ( size * 2 ) / divisions;\n\t\tvar vertices = [], colors = [];\n\n\t\tfor ( var i = 0, j = 0, k = - size; i <= divisions; i ++, k += step ) {\n\n\t\t\tvertices.push( - size, 0, k, size, 0, k );\n\t\t\tvertices.push( k, 0, - size, k, 0, size );\n\n\t\t\tvar color = i === center ? color1 : color2;\n\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\t\t\tcolor.toArray( colors, j ); j += 3;\n\n\t\t}\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32Attribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new Float32Attribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tGridHelper.prototype = Object.create( LineSegments.prototype );\n\tGridHelper.prototype.constructor = GridHelper;\n\n\tGridHelper.prototype.setColors = function () {\n\n\t\tconsole.error( 'THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.' );\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t*/\n\n\tfunction FaceNormalsHelper( object, size, hex, linewidth ) {\n\n\t\t// FaceNormalsHelper only supports THREE.Geometry\n\n\t\tthis.object = object;\n\n\t\tthis.size = ( size !== undefined ) ? size : 1;\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0xffff00;\n\n\t\tvar width = ( linewidth !== undefined ) ? linewidth : 1;\n\n\t\t//\n\n\t\tvar nNormals = 0;\n\n\t\tvar objGeometry = this.object.geometry;\n\n\t\tif ( (objGeometry && objGeometry.isGeometry) ) {\n\n\t\t\tnNormals = objGeometry.faces.length;\n\n\t\t} else {\n\n\t\t\tconsole.warn( 'THREE.FaceNormalsHelper: only THREE.Geometry is supported. Use THREE.VertexNormalsHelper, instead.' );\n\n\t\t}\n\n\t\t//\n\n\t\tvar geometry = new BufferGeometry();\n\n\t\tvar positions = new Float32Attribute( nNormals * 2 * 3, 3 );\n\n\t\tgeometry.addAttribute( 'position', positions );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color, linewidth: width } ) );\n\n\t\t//\n\n\t\tthis.matrixAutoUpdate = false;\n\t\tthis.update();\n\n\t}\n\n\tFaceNormalsHelper.prototype = Object.create( LineSegments.prototype );\n\tFaceNormalsHelper.prototype.constructor = FaceNormalsHelper;\n\n\tFaceNormalsHelper.prototype.update = ( function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar normalMatrix = new Matrix3();\n\n\t\treturn function update() {\n\n\t\t\tthis.object.updateMatrixWorld( true );\n\n\t\t\tnormalMatrix.getNormalMatrix( this.object.matrixWorld );\n\n\t\t\tvar matrixWorld = this.object.matrixWorld;\n\n\t\t\tvar position = this.geometry.attributes.position;\n\n\t\t\t//\n\n\t\t\tvar objGeometry = this.object.geometry;\n\n\t\t\tvar vertices = objGeometry.vertices;\n\n\t\t\tvar faces = objGeometry.faces;\n\n\t\t\tvar idx = 0;\n\n\t\t\tfor ( var i = 0, l = faces.length; i < l; i ++ ) {\n\n\t\t\t\tvar face = faces[ i ];\n\n\t\t\t\tvar normal = face.normal;\n\n\t\t\t\tv1.copy( vertices[ face.a ] )\n\t\t\t\t\t.add( vertices[ face.b ] )\n\t\t\t\t\t.add( vertices[ face.c ] )\n\t\t\t\t\t.divideScalar( 3 )\n\t\t\t\t\t.applyMatrix4( matrixWorld );\n\n\t\t\t\tv2.copy( normal ).applyMatrix3( normalMatrix ).normalize().multiplyScalar( this.size ).add( v1 );\n\n\t\t\t\tposition.setXYZ( idx, v1.x, v1.y, v1.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t\tposition.setXYZ( idx, v2.x, v2.y, v2.z );\n\n\t\t\t\tidx = idx + 1;\n\n\t\t\t}\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t\treturn this;\n\n\t\t};\n\n\t}() );\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author mrdoob / http://mrdoob.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\tfunction DirectionalLightHelper( light, size ) {\n\n\t\tObject3D.call( this );\n\n\t\tthis.light = light;\n\t\tthis.light.updateMatrixWorld();\n\n\t\tthis.matrix = light.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tif ( size === undefined ) size = 1;\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32Attribute( [\n\t\t\t- size, size, 0,\n\t\t\t size, size, 0,\n\t\t\t size, - size, 0,\n\t\t\t- size, - size, 0,\n\t\t\t- size, size, 0\n\t\t], 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { fog: false } );\n\n\t\tthis.add( new Line( geometry, material ) );\n\n\t\tgeometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new Float32Attribute( [ 0, 0, 0, 0, 0, 1 ], 3 ) );\n\n\t\tthis.add( new Line( geometry, material ));\n\n\t\tthis.update();\n\n\t}\n\n\tDirectionalLightHelper.prototype = Object.create( Object3D.prototype );\n\tDirectionalLightHelper.prototype.constructor = DirectionalLightHelper;\n\n\tDirectionalLightHelper.prototype.dispose = function () {\n\n\t\tvar lightPlane = this.children[ 0 ];\n\t\tvar targetLine = this.children[ 1 ];\n\n\t\tlightPlane.geometry.dispose();\n\t\tlightPlane.material.dispose();\n\t\ttargetLine.geometry.dispose();\n\t\ttargetLine.material.dispose();\n\n\t};\n\n\tDirectionalLightHelper.prototype.update = function () {\n\n\t\tvar v1 = new Vector3();\n\t\tvar v2 = new Vector3();\n\t\tvar v3 = new Vector3();\n\n\t\treturn function update() {\n\n\t\t\tv1.setFromMatrixPosition( this.light.matrixWorld );\n\t\t\tv2.setFromMatrixPosition( this.light.target.matrixWorld );\n\t\t\tv3.subVectors( v2, v1 );\n\n\t\t\tvar lightPlane = this.children[ 0 ];\n\t\t\tvar targetLine = this.children[ 1 ];\n\n\t\t\tlightPlane.lookAt( v3 );\n\t\t\tlightPlane.material.color.copy( this.light.color ).multiplyScalar( this.light.intensity );\n\n\t\t\ttargetLine.lookAt( v3 );\n\t\t\ttargetLine.scale.z = v3.length();\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t *\n\t *\t- shows frustum, line of sight and up of the camera\n\t *\t- suitable for fast updates\n\t * \t- based on frustum visualization in lightgl.js shadowmap example\n\t *\t\thttp://evanw.github.com/lightgl.js/tests/shadowmap.html\n\t */\n\n\tfunction CameraHelper( camera ) {\n\n\t\tvar geometry = new Geometry();\n\t\tvar material = new LineBasicMaterial( { color: 0xffffff, vertexColors: FaceColors } );\n\n\t\tvar pointMap = {};\n\n\t\t// colors\n\n\t\tvar hexFrustum = 0xffaa00;\n\t\tvar hexCone = 0xff0000;\n\t\tvar hexUp = 0x00aaff;\n\t\tvar hexTarget = 0xffffff;\n\t\tvar hexCross = 0x333333;\n\n\t\t// near\n\n\t\taddLine( \"n1\", \"n2\", hexFrustum );\n\t\taddLine( \"n2\", \"n4\", hexFrustum );\n\t\taddLine( \"n4\", \"n3\", hexFrustum );\n\t\taddLine( \"n3\", \"n1\", hexFrustum );\n\n\t\t// far\n\n\t\taddLine( \"f1\", \"f2\", hexFrustum );\n\t\taddLine( \"f2\", \"f4\", hexFrustum );\n\t\taddLine( \"f4\", \"f3\", hexFrustum );\n\t\taddLine( \"f3\", \"f1\", hexFrustum );\n\n\t\t// sides\n\n\t\taddLine( \"n1\", \"f1\", hexFrustum );\n\t\taddLine( \"n2\", \"f2\", hexFrustum );\n\t\taddLine( \"n3\", \"f3\", hexFrustum );\n\t\taddLine( \"n4\", \"f4\", hexFrustum );\n\n\t\t// cone\n\n\t\taddLine( \"p\", \"n1\", hexCone );\n\t\taddLine( \"p\", \"n2\", hexCone );\n\t\taddLine( \"p\", \"n3\", hexCone );\n\t\taddLine( \"p\", \"n4\", hexCone );\n\n\t\t// up\n\n\t\taddLine( \"u1\", \"u2\", hexUp );\n\t\taddLine( \"u2\", \"u3\", hexUp );\n\t\taddLine( \"u3\", \"u1\", hexUp );\n\n\t\t// target\n\n\t\taddLine( \"c\", \"t\", hexTarget );\n\t\taddLine( \"p\", \"c\", hexCross );\n\n\t\t// cross\n\n\t\taddLine( \"cn1\", \"cn2\", hexCross );\n\t\taddLine( \"cn3\", \"cn4\", hexCross );\n\n\t\taddLine( \"cf1\", \"cf2\", hexCross );\n\t\taddLine( \"cf3\", \"cf4\", hexCross );\n\n\t\tfunction addLine( a, b, hex ) {\n\n\t\t\taddPoint( a, hex );\n\t\t\taddPoint( b, hex );\n\n\t\t}\n\n\t\tfunction addPoint( id, hex ) {\n\n\t\t\tgeometry.vertices.push( new Vector3() );\n\t\t\tgeometry.colors.push( new Color( hex ) );\n\n\t\t\tif ( pointMap[ id ] === undefined ) {\n\n\t\t\t\tpointMap[ id ] = [];\n\n\t\t\t}\n\n\t\t\tpointMap[ id ].push( geometry.vertices.length - 1 );\n\n\t\t}\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t\tthis.camera = camera;\n\t\tif( this.camera.updateProjectionMatrix ) this.camera.updateProjectionMatrix();\n\n\t\tthis.matrix = camera.matrixWorld;\n\t\tthis.matrixAutoUpdate = false;\n\n\t\tthis.pointMap = pointMap;\n\n\t\tthis.update();\n\n\t}\n\n\tCameraHelper.prototype = Object.create( LineSegments.prototype );\n\tCameraHelper.prototype.constructor = CameraHelper;\n\n\tCameraHelper.prototype.update = function () {\n\n\t\tvar geometry, pointMap;\n\n\t\tvar vector = new Vector3();\n\t\tvar camera = new Camera();\n\n\t\tfunction setPoint( point, x, y, z ) {\n\n\t\t\tvector.set( x, y, z ).unproject( camera );\n\n\t\t\tvar points = pointMap[ point ];\n\n\t\t\tif ( points !== undefined ) {\n\n\t\t\t\tfor ( var i = 0, il = points.length; i < il; i ++ ) {\n\n\t\t\t\t\tgeometry.vertices[ points[ i ] ].copy( vector );\n\n\t\t\t\t}\n\n\t\t\t}\n\n\t\t}\n\n\t\treturn function update() {\n\n\t\t\tgeometry = this.geometry;\n\t\t\tpointMap = this.pointMap;\n\n\t\t\tvar w = 1, h = 1;\n\n\t\t\t// we need just camera projection matrix\n\t\t\t// world matrix must be identity\n\n\t\t\tcamera.projectionMatrix.copy( this.camera.projectionMatrix );\n\n\t\t\t// center / target\n\n\t\t\tsetPoint( \"c\", 0, 0, - 1 );\n\t\t\tsetPoint( \"t\", 0, 0, 1 );\n\n\t\t\t// near\n\n\t\t\tsetPoint( \"n1\", - w, - h, - 1 );\n\t\t\tsetPoint( \"n2\", w, - h, - 1 );\n\t\t\tsetPoint( \"n3\", - w, h, - 1 );\n\t\t\tsetPoint( \"n4\", w, h, - 1 );\n\n\t\t\t// far\n\n\t\t\tsetPoint( \"f1\", - w, - h, 1 );\n\t\t\tsetPoint( \"f2\", w, - h, 1 );\n\t\t\tsetPoint( \"f3\", - w, h, 1 );\n\t\t\tsetPoint( \"f4\", w, h, 1 );\n\n\t\t\t// up\n\n\t\t\tsetPoint( \"u1\", w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( \"u2\", - w * 0.7, h * 1.1, - 1 );\n\t\t\tsetPoint( \"u3\", 0, h * 2, - 1 );\n\n\t\t\t// cross\n\n\t\t\tsetPoint( \"cf1\", - w, 0, 1 );\n\t\t\tsetPoint( \"cf2\", w, 0, 1 );\n\t\t\tsetPoint( \"cf3\", 0, - h, 1 );\n\t\t\tsetPoint( \"cf4\", 0, h, 1 );\n\n\t\t\tsetPoint( \"cn1\", - w, 0, - 1 );\n\t\t\tsetPoint( \"cn2\", w, 0, - 1 );\n\t\t\tsetPoint( \"cn3\", 0, - h, - 1 );\n\t\t\tsetPoint( \"cn4\", 0, h, - 1 );\n\n\t\t\tgeometry.verticesNeedUpdate = true;\n\n\t\t};\n\n\t}();\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t */\n\n\t// a helper to show the world-axis-aligned bounding box for an object\n\n\tfunction BoundingBoxHelper( object, hex ) {\n\n\t\tvar color = ( hex !== undefined ) ? hex : 0x888888;\n\n\t\tthis.object = object;\n\n\t\tthis.box = new Box3();\n\n\t\tMesh.call( this, new BoxGeometry( 1, 1, 1 ), new MeshBasicMaterial( { color: color, wireframe: true } ) );\n\n\t}\n\n\tBoundingBoxHelper.prototype = Object.create( Mesh.prototype );\n\tBoundingBoxHelper.prototype.constructor = BoundingBoxHelper;\n\n\tBoundingBoxHelper.prototype.update = function () {\n\n\t\tthis.box.setFromObject( this.object );\n\n\t\tthis.box.getSize( this.scale );\n\n\t\tthis.box.getCenter( this.position );\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction BoxHelper( object, color ) {\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\n\t\tvar indices = new Uint16Array( [ 0, 1, 1, 2, 2, 3, 3, 0, 4, 5, 5, 6, 6, 7, 7, 4, 0, 4, 1, 5, 2, 6, 3, 7 ] );\n\t\tvar positions = new Float32Array( 8 * 3 );\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.setIndex( new BufferAttribute( indices, 1 ) );\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( positions, 3 ) );\n\n\t\tLineSegments.call( this, geometry, new LineBasicMaterial( { color: color } ) );\n\n\t\tif ( object !== undefined ) {\n\n\t\t\tthis.update( object );\n\n\t\t}\n\n\t}\n\n\tBoxHelper.prototype = Object.create( LineSegments.prototype );\n\tBoxHelper.prototype.constructor = BoxHelper;\n\n\tBoxHelper.prototype.update = ( function () {\n\n\t\tvar box = new Box3();\n\n\t\treturn function update( object ) {\n\n\t\t\tif ( (object && object.isBox3) ) {\n\n\t\t\t\tbox.copy( object );\n\n\t\t\t} else {\n\n\t\t\t\tbox.setFromObject( object );\n\n\t\t\t}\n\n\t\t\tif ( box.isEmpty() ) return;\n\n\t\t\tvar min = box.min;\n\t\t\tvar max = box.max;\n\n\t\t\t/*\n\t\t\t 5____4\n\t\t\t1/___0/|\n\t\t\t| 6__|_7\n\t\t\t2/___3/\n\n\t\t\t0: max.x, max.y, max.z\n\t\t\t1: min.x, max.y, max.z\n\t\t\t2: min.x, min.y, max.z\n\t\t\t3: max.x, min.y, max.z\n\t\t\t4: max.x, max.y, min.z\n\t\t\t5: min.x, max.y, min.z\n\t\t\t6: min.x, min.y, min.z\n\t\t\t7: max.x, min.y, min.z\n\t\t\t*/\n\n\t\t\tvar position = this.geometry.attributes.position;\n\t\t\tvar array = position.array;\n\n\t\t\tarray[ 0 ] = max.x; array[ 1 ] = max.y; array[ 2 ] = max.z;\n\t\t\tarray[ 3 ] = min.x; array[ 4 ] = max.y; array[ 5 ] = max.z;\n\t\t\tarray[ 6 ] = min.x; array[ 7 ] = min.y; array[ 8 ] = max.z;\n\t\t\tarray[ 9 ] = max.x; array[ 10 ] = min.y; array[ 11 ] = max.z;\n\t\t\tarray[ 12 ] = max.x; array[ 13 ] = max.y; array[ 14 ] = min.z;\n\t\t\tarray[ 15 ] = min.x; array[ 16 ] = max.y; array[ 17 ] = min.z;\n\t\t\tarray[ 18 ] = min.x; array[ 19 ] = min.y; array[ 20 ] = min.z;\n\t\t\tarray[ 21 ] = max.x; array[ 22 ] = min.y; array[ 23 ] = min.z;\n\n\t\t\tposition.needsUpdate = true;\n\n\t\t\tthis.geometry.computeBoundingSphere();\n\n\t\t};\n\n\t} )();\n\n\t/**\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author zz85 / http://github.com/zz85\n\t * @author bhouston / http://clara.io\n\t *\n\t * Creates an arrow for visualizing directions\n\t *\n\t * Parameters:\n\t * dir - Vector3\n\t * origin - Vector3\n\t * length - Number\n\t * color - color in hex value\n\t * headLength - Number\n\t * headWidth - Number\n\t */\n\n\tvar lineGeometry = new BufferGeometry();\n\tlineGeometry.addAttribute( 'position', new Float32Attribute( [ 0, 0, 0, 0, 1, 0 ], 3 ) );\n\n\tvar coneGeometry = new CylinderBufferGeometry( 0, 0.5, 1, 5, 1 );\n\tconeGeometry.translate( 0, - 0.5, 0 );\n\n\tfunction ArrowHelper( dir, origin, length, color, headLength, headWidth ) {\n\n\t\t// dir is assumed to be normalized\n\n\t\tObject3D.call( this );\n\n\t\tif ( color === undefined ) color = 0xffff00;\n\t\tif ( length === undefined ) length = 1;\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tthis.position.copy( origin );\n\n\t\tthis.line = new Line( lineGeometry, new LineBasicMaterial( { color: color } ) );\n\t\tthis.line.matrixAutoUpdate = false;\n\t\tthis.add( this.line );\n\n\t\tthis.cone = new Mesh( coneGeometry, new MeshBasicMaterial( { color: color } ) );\n\t\tthis.cone.matrixAutoUpdate = false;\n\t\tthis.add( this.cone );\n\n\t\tthis.setDirection( dir );\n\t\tthis.setLength( length, headLength, headWidth );\n\n\t}\n\n\tArrowHelper.prototype = Object.create( Object3D.prototype );\n\tArrowHelper.prototype.constructor = ArrowHelper;\n\n\tArrowHelper.prototype.setDirection = ( function () {\n\n\t\tvar axis = new Vector3();\n\t\tvar radians;\n\n\t\treturn function setDirection( dir ) {\n\n\t\t\t// dir is assumed to be normalized\n\n\t\t\tif ( dir.y > 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 0, 0, 0, 1 );\n\n\t\t\t} else if ( dir.y < - 0.99999 ) {\n\n\t\t\t\tthis.quaternion.set( 1, 0, 0, 0 );\n\n\t\t\t} else {\n\n\t\t\t\taxis.set( dir.z, 0, - dir.x ).normalize();\n\n\t\t\t\tradians = Math.acos( dir.y );\n\n\t\t\t\tthis.quaternion.setFromAxisAngle( axis, radians );\n\n\t\t\t}\n\n\t\t};\n\n\t}() );\n\n\tArrowHelper.prototype.setLength = function ( length, headLength, headWidth ) {\n\n\t\tif ( headLength === undefined ) headLength = 0.2 * length;\n\t\tif ( headWidth === undefined ) headWidth = 0.2 * headLength;\n\n\t\tthis.line.scale.set( 1, Math.max( 0, length - headLength ), 1 );\n\t\tthis.line.updateMatrix();\n\n\t\tthis.cone.scale.set( headWidth, headLength, headWidth );\n\t\tthis.cone.position.y = length;\n\t\tthis.cone.updateMatrix();\n\n\t};\n\n\tArrowHelper.prototype.setColor = function ( color ) {\n\n\t\tthis.line.material.color.copy( color );\n\t\tthis.cone.material.color.copy( color );\n\n\t};\n\n\t/**\n\t * @author sroucheray / http://sroucheray.org/\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction AxisHelper( size ) {\n\n\t\tsize = size || 1;\n\n\t\tvar vertices = new Float32Array( [\n\t\t\t0, 0, 0, size, 0, 0,\n\t\t\t0, 0, 0, 0, size, 0,\n\t\t\t0, 0, 0, 0, 0, size\n\t\t] );\n\n\t\tvar colors = new Float32Array( [\n\t\t\t1, 0, 0, 1, 0.6, 0,\n\t\t\t0, 1, 0, 0.6, 1, 0,\n\t\t\t0, 0, 1, 0, 0.6, 1\n\t\t] );\n\n\t\tvar geometry = new BufferGeometry();\n\t\tgeometry.addAttribute( 'position', new BufferAttribute( vertices, 3 ) );\n\t\tgeometry.addAttribute( 'color', new BufferAttribute( colors, 3 ) );\n\n\t\tvar material = new LineBasicMaterial( { vertexColors: VertexColors } );\n\n\t\tLineSegments.call( this, geometry, material );\n\n\t}\n\n\tAxisHelper.prototype = Object.create( LineSegments.prototype );\n\tAxisHelper.prototype.constructor = AxisHelper;\n\n\t/**\n\t * @author zz85 https://github.com/zz85\n\t *\n\t * Centripetal CatmullRom Curve - which is useful for avoiding\n\t * cusps and self-intersections in non-uniform catmull rom curves.\n\t * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf\n\t *\n\t * curve.type accepts centripetal(default), chordal and catmullrom\n\t * curve.tension is used for catmullrom which defaults to 0.5\n\t */\n\n\tvar CatmullRomCurve3 = ( function() {\n\n\t\tvar\n\t\t\ttmp = new Vector3(),\n\t\t\tpx = new CubicPoly(),\n\t\t\tpy = new CubicPoly(),\n\t\t\tpz = new CubicPoly();\n\n\t\t/*\n\t\tBased on an optimized c++ solution in\n\t\t - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/\n\t\t - http://ideone.com/NoEbVM\n\n\t\tThis CubicPoly class could be used for reusing some variables and calculations,\n\t\tbut for three.js curve use, it could be possible inlined and flatten into a single function call\n\t\twhich can be placed in CurveUtils.\n\t\t*/\n\n\t\tfunction CubicPoly() {}\n\n\t\t/*\n\t\t * Compute coefficients for a cubic polynomial\n\t\t * p(s) = c0 + c1*s + c2*s^2 + c3*s^3\n\t\t * such that\n\t\t * p(0) = x0, p(1) = x1\n\t\t * and\n\t\t * p'(0) = t0, p'(1) = t1.\n\t\t */\n\t\tCubicPoly.prototype.init = function( x0, x1, t0, t1 ) {\n\n\t\t\tthis.c0 = x0;\n\t\t\tthis.c1 = t0;\n\t\t\tthis.c2 = - 3 * x0 + 3 * x1 - 2 * t0 - t1;\n\t\t\tthis.c3 = 2 * x0 - 2 * x1 + t0 + t1;\n\n\t\t};\n\n\t\tCubicPoly.prototype.initNonuniformCatmullRom = function( x0, x1, x2, x3, dt0, dt1, dt2 ) {\n\n\t\t\t// compute tangents when parameterized in [t1,t2]\n\t\t\tvar t1 = ( x1 - x0 ) / dt0 - ( x2 - x0 ) / ( dt0 + dt1 ) + ( x2 - x1 ) / dt1;\n\t\t\tvar t2 = ( x2 - x1 ) / dt1 - ( x3 - x1 ) / ( dt1 + dt2 ) + ( x3 - x2 ) / dt2;\n\n\t\t\t// rescale tangents for parametrization in [0,1]\n\t\t\tt1 *= dt1;\n\t\t\tt2 *= dt1;\n\n\t\t\t// initCubicPoly\n\t\t\tthis.init( x1, x2, t1, t2 );\n\n\t\t};\n\n\t\t// standard Catmull-Rom spline: interpolate between x1 and x2 with previous/following points x1/x4\n\t\tCubicPoly.prototype.initCatmullRom = function( x0, x1, x2, x3, tension ) {\n\n\t\t\tthis.init( x1, x2, tension * ( x2 - x0 ), tension * ( x3 - x1 ) );\n\n\t\t};\n\n\t\tCubicPoly.prototype.calc = function( t ) {\n\n\t\t\tvar t2 = t * t;\n\t\t\tvar t3 = t2 * t;\n\t\t\treturn this.c0 + this.c1 * t + this.c2 * t2 + this.c3 * t3;\n\n\t\t};\n\n\t\t// Subclass Three.js curve\n\t\treturn Curve.create(\n\n\t\t\tfunction ( p /* array of Vector3 */ ) {\n\n\t\t\t\tthis.points = p || [];\n\t\t\t\tthis.closed = false;\n\n\t\t\t},\n\n\t\t\tfunction ( t ) {\n\n\t\t\t\tvar points = this.points,\n\t\t\t\t\tpoint, intPoint, weight, l;\n\n\t\t\t\tl = points.length;\n\n\t\t\t\tif ( l < 2 ) console.log( 'duh, you need at least 2 points' );\n\n\t\t\t\tpoint = ( l - ( this.closed ? 0 : 1 ) ) * t;\n\t\t\t\tintPoint = Math.floor( point );\n\t\t\t\tweight = point - intPoint;\n\n\t\t\t\tif ( this.closed ) {\n\n\t\t\t\t\tintPoint += intPoint > 0 ? 0 : ( Math.floor( Math.abs( intPoint ) / points.length ) + 1 ) * points.length;\n\n\t\t\t\t} else if ( weight === 0 && intPoint === l - 1 ) {\n\n\t\t\t\t\tintPoint = l - 2;\n\t\t\t\t\tweight = 1;\n\n\t\t\t\t}\n\n\t\t\t\tvar p0, p1, p2, p3; // 4 points\n\n\t\t\t\tif ( this.closed || intPoint > 0 ) {\n\n\t\t\t\t\tp0 = points[ ( intPoint - 1 ) % l ];\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// extrapolate first point\n\t\t\t\t\ttmp.subVectors( points[ 0 ], points[ 1 ] ).add( points[ 0 ] );\n\t\t\t\t\tp0 = tmp;\n\n\t\t\t\t}\n\n\t\t\t\tp1 = points[ intPoint % l ];\n\t\t\t\tp2 = points[ ( intPoint + 1 ) % l ];\n\n\t\t\t\tif ( this.closed || intPoint + 2 < l ) {\n\n\t\t\t\t\tp3 = points[ ( intPoint + 2 ) % l ];\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// extrapolate last point\n\t\t\t\t\ttmp.subVectors( points[ l - 1 ], points[ l - 2 ] ).add( points[ l - 1 ] );\n\t\t\t\t\tp3 = tmp;\n\n\t\t\t\t}\n\n\t\t\t\tif ( this.type === undefined || this.type === 'centripetal' || this.type === 'chordal' ) {\n\n\t\t\t\t\t// init Centripetal / Chordal Catmull-Rom\n\t\t\t\t\tvar pow = this.type === 'chordal' ? 0.5 : 0.25;\n\t\t\t\t\tvar dt0 = Math.pow( p0.distanceToSquared( p1 ), pow );\n\t\t\t\t\tvar dt1 = Math.pow( p1.distanceToSquared( p2 ), pow );\n\t\t\t\t\tvar dt2 = Math.pow( p2.distanceToSquared( p3 ), pow );\n\n\t\t\t\t\t// safety check for repeated points\n\t\t\t\t\tif ( dt1 < 1e-4 ) dt1 = 1.0;\n\t\t\t\t\tif ( dt0 < 1e-4 ) dt0 = dt1;\n\t\t\t\t\tif ( dt2 < 1e-4 ) dt2 = dt1;\n\n\t\t\t\t\tpx.initNonuniformCatmullRom( p0.x, p1.x, p2.x, p3.x, dt0, dt1, dt2 );\n\t\t\t\t\tpy.initNonuniformCatmullRom( p0.y, p1.y, p2.y, p3.y, dt0, dt1, dt2 );\n\t\t\t\t\tpz.initNonuniformCatmullRom( p0.z, p1.z, p2.z, p3.z, dt0, dt1, dt2 );\n\n\t\t\t\t} else if ( this.type === 'catmullrom' ) {\n\n\t\t\t\t\tvar tension = this.tension !== undefined ? this.tension : 0.5;\n\t\t\t\t\tpx.initCatmullRom( p0.x, p1.x, p2.x, p3.x, tension );\n\t\t\t\t\tpy.initCatmullRom( p0.y, p1.y, p2.y, p3.y, tension );\n\t\t\t\t\tpz.initCatmullRom( p0.z, p1.z, p2.z, p3.z, tension );\n\n\t\t\t\t}\n\n\t\t\t\tvar v = new Vector3(\n\t\t\t\t\tpx.calc( weight ),\n\t\t\t\t\tpy.calc( weight ),\n\t\t\t\t\tpz.calc( weight )\n\t\t\t\t);\n\n\t\t\t\treturn v;\n\n\t\t\t}\n\n\t\t);\n\n\t} )();\n\n\t/**************************************************************\n\t *\tClosed Spline 3D curve\n\t **************************************************************/\n\n\n\tfunction ClosedSplineCurve3( points ) {\n\n\t\tconsole.warn( 'THREE.ClosedSplineCurve3 has been deprecated. Please use THREE.CatmullRomCurve3.' );\n\n\t\tCatmullRomCurve3.call( this, points );\n\t\tthis.type = 'catmullrom';\n\t\tthis.closed = true;\n\n\t}\n\n\tClosedSplineCurve3.prototype = Object.create( CatmullRomCurve3.prototype );\n\n\t/**************************************************************\n\t *\tSpline 3D curve\n\t **************************************************************/\n\n\n\tvar SplineCurve3 = Curve.create(\n\n\t\tfunction ( points /* array of Vector3 */ ) {\n\n\t\t\tconsole.warn( 'THREE.SplineCurve3 will be deprecated. Please use THREE.CatmullRomCurve3' );\n\t\t\tthis.points = ( points === undefined ) ? [] : points;\n\n\t\t},\n\n\t\tfunction ( t ) {\n\n\t\t\tvar points = this.points;\n\t\t\tvar point = ( points.length - 1 ) * t;\n\n\t\t\tvar intPoint = Math.floor( point );\n\t\t\tvar weight = point - intPoint;\n\n\t\t\tvar point0 = points[ intPoint == 0 ? intPoint : intPoint - 1 ];\n\t\t\tvar point1 = points[ intPoint ];\n\t\t\tvar point2 = points[ intPoint > points.length - 2 ? points.length - 1 : intPoint + 1 ];\n\t\t\tvar point3 = points[ intPoint > points.length - 3 ? points.length - 1 : intPoint + 2 ];\n\n\t\t\tvar interpolate = CurveUtils.interpolate;\n\n\t\t\treturn new Vector3(\n\t\t\t\tinterpolate( point0.x, point1.x, point2.x, point3.x, weight ),\n\t\t\t\tinterpolate( point0.y, point1.y, point2.y, point3.y, weight ),\n\t\t\t\tinterpolate( point0.z, point1.z, point2.z, point3.z, weight )\n\t\t\t);\n\n\t\t}\n\n\t);\n\n\t/**************************************************************\n\t *\tCubic Bezier 3D curve\n\t **************************************************************/\n\n\tvar CubicBezierCurve3 = Curve.create(\n\n\t\tfunction ( v0, v1, v2, v3 ) {\n\n\t\t\tthis.v0 = v0;\n\t\t\tthis.v1 = v1;\n\t\t\tthis.v2 = v2;\n\t\t\tthis.v3 = v3;\n\n\t\t},\n\n\t\tfunction ( t ) {\n\n\t\t\tvar b3 = ShapeUtils.b3;\n\n\t\t\treturn new Vector3(\n\t\t\t\tb3( t, this.v0.x, this.v1.x, this.v2.x, this.v3.x ),\n\t\t\t\tb3( t, this.v0.y, this.v1.y, this.v2.y, this.v3.y ),\n\t\t\t\tb3( t, this.v0.z, this.v1.z, this.v2.z, this.v3.z )\n\t\t\t);\n\n\t\t}\n\n\t);\n\n\t/**************************************************************\n\t *\tQuadratic Bezier 3D curve\n\t **************************************************************/\n\n\tvar QuadraticBezierCurve3 = Curve.create(\n\n\t\tfunction ( v0, v1, v2 ) {\n\n\t\t\tthis.v0 = v0;\n\t\t\tthis.v1 = v1;\n\t\t\tthis.v2 = v2;\n\n\t\t},\n\n\t\tfunction ( t ) {\n\n\t\t\tvar b2 = ShapeUtils.b2;\n\n\t\t\treturn new Vector3(\n\t\t\t\tb2( t, this.v0.x, this.v1.x, this.v2.x ),\n\t\t\t\tb2( t, this.v0.y, this.v1.y, this.v2.y ),\n\t\t\t\tb2( t, this.v0.z, this.v1.z, this.v2.z )\n\t\t\t);\n\n\t\t}\n\n\t);\n\n\t/**************************************************************\n\t *\tLine3D\n\t **************************************************************/\n\n\tvar LineCurve3 = Curve.create(\n\n\t\tfunction ( v1, v2 ) {\n\n\t\t\tthis.v1 = v1;\n\t\t\tthis.v2 = v2;\n\n\t\t},\n\n\t\tfunction ( t ) {\n\n\t\t\tif ( t === 1 ) {\n\n\t\t\t\treturn this.v2.clone();\n\n\t\t\t}\n\n\t\t\tvar vector = new Vector3();\n\n\t\t\tvector.subVectors( this.v2, this.v1 ); // diff\n\t\t\tvector.multiplyScalar( t );\n\t\t\tvector.add( this.v1 );\n\n\t\t\treturn vector;\n\n\t\t}\n\n\t);\n\n\t/**************************************************************\n\t *\tArc curve\n\t **************************************************************/\n\n\tfunction ArcCurve( aX, aY, aRadius, aStartAngle, aEndAngle, aClockwise ) {\n\n\t\tEllipseCurve.call( this, aX, aY, aRadius, aRadius, aStartAngle, aEndAngle, aClockwise );\n\n\t}\n\n\tArcCurve.prototype = Object.create( EllipseCurve.prototype );\n\tArcCurve.prototype.constructor = ArcCurve;\n\n\t/**\n\t * @author alteredq / http://alteredqualia.com/\n\t */\n\n\tvar SceneUtils = {\n\n\t\tcreateMultiMaterialObject: function ( geometry, materials ) {\n\n\t\t\tvar group = new Group();\n\n\t\t\tfor ( var i = 0, l = materials.length; i < l; i ++ ) {\n\n\t\t\t\tgroup.add( new Mesh( geometry, materials[ i ] ) );\n\n\t\t\t}\n\n\t\t\treturn group;\n\n\t\t},\n\n\t\tdetach: function ( child, parent, scene ) {\n\n\t\t\tchild.applyMatrix( parent.matrixWorld );\n\t\t\tparent.remove( child );\n\t\t\tscene.add( child );\n\n\t\t},\n\n\t\tattach: function ( child, scene, parent ) {\n\n\t\t\tvar matrixWorldInverse = new Matrix4();\n\t\t\tmatrixWorldInverse.getInverse( parent.matrixWorld );\n\t\t\tchild.applyMatrix( matrixWorldInverse );\n\n\t\t\tscene.remove( child );\n\t\t\tparent.add( child );\n\n\t\t}\n\n\t};\n\n\t/**\n\t * @author mrdoob / http://mrdoob.com/\n\t */\n\n\tfunction Face4 ( a, b, c, d, normal, color, materialIndex ) {\n\t\tconsole.warn( 'THREE.Face4 has been removed. A THREE.Face3 will be created instead.' );\n\t\treturn new Face3( a, b, c, normal, color, materialIndex );\n\t}\n\n\tvar LineStrip = 0;\n\n\tvar LinePieces = 1;\n\n\tfunction PointCloud ( geometry, material ) {\n\t\tconsole.warn( 'THREE.PointCloud has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\t}\n\n\tfunction ParticleSystem ( geometry, material ) {\n\t\tconsole.warn( 'THREE.ParticleSystem has been renamed to THREE.Points.' );\n\t\treturn new Points( geometry, material );\n\t}\n\n\tfunction PointCloudMaterial ( parameters ) {\n\t\tconsole.warn( 'THREE.PointCloudMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\t}\n\n\tfunction ParticleBasicMaterial ( parameters ) {\n\t\tconsole.warn( 'THREE.ParticleBasicMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\t}\n\n\tfunction ParticleSystemMaterial ( parameters ) {\n\t\tconsole.warn( 'THREE.ParticleSystemMaterial has been renamed to THREE.PointsMaterial.' );\n\t\treturn new PointsMaterial( parameters );\n\t}\n\n\tfunction Vertex ( x, y, z ) {\n\t\tconsole.warn( 'THREE.Vertex has been removed. Use THREE.Vector3 instead.' );\n\t\treturn new Vector3( x, y, z );\n\t}\n\n\t//\n\n\tfunction EdgesHelper( object, hex ) {\n\t\tconsole.warn( 'THREE.EdgesHelper has been removed. Use THREE.EdgesGeometry instead.' );\n\t\treturn new LineSegments( new EdgesGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\t}\n\n\tfunction WireframeHelper( object, hex ) {\n\t\tconsole.warn( 'THREE.WireframeHelper has been removed. Use THREE.WireframeGeometry instead.' );\n\t\treturn new LineSegments( new WireframeGeometry( object.geometry ), new LineBasicMaterial( { color: hex !== undefined ? hex : 0xffffff } ) );\n\t}\n\n\t//\n\n\tObject.assign( Box2.prototype, {\n\t\tcenter: function ( optionalTarget ) {\n\t\t\tconsole.warn( 'THREE.Box2: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\t\t},\n\t\tempty: function () {\n\t\t\tconsole.warn( 'THREE.Box2: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\t\t\tconsole.warn( 'THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\t\t\tconsole.warn( 'THREE.Box2: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\t\t}\n\t} );\n\n\tObject.assign( Box3.prototype, {\n\t\tcenter: function ( optionalTarget ) {\n\t\t\tconsole.warn( 'THREE.Box3: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\t\t},\n\t\tempty: function () {\n\t\t\tconsole.warn( 'THREE.Box3: .empty() has been renamed to .isEmpty().' );\n\t\t\treturn this.isEmpty();\n\t\t},\n\t\tisIntersectionBox: function ( box ) {\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\t\t\tconsole.warn( 'THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\t\t},\n\t\tsize: function ( optionalTarget ) {\n\t\t\tconsole.warn( 'THREE.Box3: .size() has been renamed to .getSize().' );\n\t\t\treturn this.getSize( optionalTarget );\n\t\t}\n\t} );\n\n\tObject.assign( Line3.prototype, {\n\t\tcenter: function ( optionalTarget ) {\n\t\t\tconsole.warn( 'THREE.Line3: .center() has been renamed to .getCenter().' );\n\t\t\treturn this.getCenter( optionalTarget );\n\t\t}\n\t} );\n\n\tObject.assign( Matrix3.prototype, {\n\t\tmultiplyVector3: function ( vector ) {\n\t\t\tconsole.warn( 'THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix3( this );\n\t\t},\n\t\tmultiplyVector3Array: function ( a ) {\n\t\t\tconsole.warn( 'THREE.Matrix3: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' );\n\t\t\treturn this.applyToVector3Array( a );\n\t\t}\n\t} );\n\n\tObject.assign( Matrix4.prototype, {\n\t\textractPosition: function ( m ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().' );\n\t\t\treturn this.copyPosition( m );\n\t\t},\n\t\tsetRotationFromQuaternion: function ( q ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().' );\n\t\t\treturn this.makeRotationFromQuaternion( q );\n\t\t},\n\t\tmultiplyVector3: function ( vector ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) or vector.applyProjection( matrix ) instead.' );\n\t\t\treturn vector.applyProjection( this );\n\t\t},\n\t\tmultiplyVector4: function ( vector ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\t\t},\n\t\tmultiplyVector3Array: function ( a ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .multiplyVector3Array() has been renamed. Use matrix.applyToVector3Array( array ) instead.' );\n\t\t\treturn this.applyToVector3Array( a );\n\t\t},\n\t\trotateAxis: function ( v ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.' );\n\t\t\tv.transformDirection( this );\n\t\t},\n\t\tcrossVector: function ( vector ) {\n\t\t\tconsole.warn( 'THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.' );\n\t\t\treturn vector.applyMatrix4( this );\n\t\t},\n\t\ttranslate: function ( v ) {\n\t\t\tconsole.error( 'THREE.Matrix4: .translate() has been removed.' );\n\t\t},\n\t\trotateX: function ( angle ) {\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateX() has been removed.' );\n\t\t},\n\t\trotateY: function ( angle ) {\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateY() has been removed.' );\n\t\t},\n\t\trotateZ: function ( angle ) {\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateZ() has been removed.' );\n\t\t},\n\t\trotateByAxis: function ( axis, angle ) {\n\t\t\tconsole.error( 'THREE.Matrix4: .rotateByAxis() has been removed.' );\n\t\t}\n\t} );\n\n\tObject.assign( Plane.prototype, {\n\t\tisIntersectionLine: function ( line ) {\n\t\t\tconsole.warn( 'THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().' );\n\t\t\treturn this.intersectsLine( line );\n\t\t}\n\t} );\n\n\tObject.assign( Quaternion.prototype, {\n\t\tmultiplyVector3: function ( vector ) {\n\t\t\tconsole.warn( 'THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.' );\n\t\t\treturn vector.applyQuaternion( this );\n\t\t}\n\t} );\n\n\tObject.assign( Ray.prototype, {\n\t\tisIntersectionBox: function ( box ) {\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().' );\n\t\t\treturn this.intersectsBox( box );\n\t\t},\n\t\tisIntersectionPlane: function ( plane ) {\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().' );\n\t\t\treturn this.intersectsPlane( plane );\n\t\t},\n\t\tisIntersectionSphere: function ( sphere ) {\n\t\t\tconsole.warn( 'THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().' );\n\t\t\treturn this.intersectsSphere( sphere );\n\t\t}\n\t} );\n\n\tObject.assign( Shape.prototype, {\n\t\textrude: function ( options ) {\n\t\t\tconsole.warn( 'THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.' );\n\t\t\treturn new ExtrudeGeometry( this, options );\n\t\t},\n\t\tmakeGeometry: function ( options ) {\n\t\t\tconsole.warn( 'THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.' );\n\t\t\treturn new ShapeGeometry( this, options );\n\t\t}\n\t} );\n\n\tObject.assign( Vector3.prototype, {\n\t\tsetEulerFromRotationMatrix: function () {\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.' );\n\t\t},\n\t\tsetEulerFromQuaternion: function () {\n\t\t\tconsole.error( 'THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.' );\n\t\t},\n\t\tgetPositionFromMatrix: function ( m ) {\n\t\t\tconsole.warn( 'THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().' );\n\t\t\treturn this.setFromMatrixPosition( m );\n\t\t},\n\t\tgetScaleFromMatrix: function ( m ) {\n\t\t\tconsole.warn( 'THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().' );\n\t\t\treturn this.setFromMatrixScale( m );\n\t\t},\n\t\tgetColumnFromMatrix: function ( index, matrix ) {\n\t\t\tconsole.warn( 'THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().' );\n\t\t\treturn this.setFromMatrixColumn( matrix, index );\n\t\t}\n\t} );\n\n\t//\n\n\tObject.assign( Object3D.prototype, {\n\t\tgetChildByName: function ( name ) {\n\t\t\tconsole.warn( 'THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().' );\n\t\t\treturn this.getObjectByName( name );\n\t\t},\n\t\trenderDepth: function ( value ) {\n\t\t\tconsole.warn( 'THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.' );\n\t\t},\n\t\ttranslate: function ( distance, axis ) {\n\t\t\tconsole.warn( 'THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.' );\n\t\t\treturn this.translateOnAxis( axis, distance );\n\t\t}\n\t} );\n\n\tObject.defineProperties( Object3D.prototype, {\n\t\teulerOrder: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\treturn this.rotation.order;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Object3D: .eulerOrder is now .rotation.order.' );\n\t\t\t\tthis.rotation.order = value;\n\t\t\t}\n\t\t},\n\t\tuseQuaternion: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.' );\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( LOD.prototype, {\n\t\tobjects: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.LOD: .objects has been renamed to .levels.' );\n\t\t\t\treturn this.levels;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tPerspectiveCamera.prototype.setLens = function ( focalLength, filmGauge ) {\n\n\t\tconsole.warn( \"THREE.PerspectiveCamera.setLens is deprecated. \" +\n\t\t\t\t\"Use .setFocalLength and .filmGauge for a photographic setup.\" );\n\n\t\tif ( filmGauge !== undefined ) this.filmGauge = filmGauge;\n\t\tthis.setFocalLength( focalLength );\n\n\t};\n\n\t//\n\n\tObject.defineProperties( Light.prototype, {\n\t\tonlyShadow: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .onlyShadow has been removed.' );\n\t\t\t}\n\t\t},\n\t\tshadowCameraFov: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFov is now .shadow.camera.fov.' );\n\t\t\t\tthis.shadow.camera.fov = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraLeft: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraLeft is now .shadow.camera.left.' );\n\t\t\t\tthis.shadow.camera.left = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraRight: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraRight is now .shadow.camera.right.' );\n\t\t\t\tthis.shadow.camera.right = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraTop: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraTop is now .shadow.camera.top.' );\n\t\t\t\tthis.shadow.camera.top = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraBottom: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.' );\n\t\t\t\tthis.shadow.camera.bottom = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraNear: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraNear is now .shadow.camera.near.' );\n\t\t\t\tthis.shadow.camera.near = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraFar: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraFar is now .shadow.camera.far.' );\n\t\t\t\tthis.shadow.camera.far = value;\n\t\t\t}\n\t\t},\n\t\tshadowCameraVisible: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.' );\n\t\t\t}\n\t\t},\n\t\tshadowBias: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowBias is now .shadow.bias.' );\n\t\t\t\tthis.shadow.bias = value;\n\t\t\t}\n\t\t},\n\t\tshadowDarkness: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowDarkness has been removed.' );\n\t\t\t}\n\t\t},\n\t\tshadowMapWidth: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.' );\n\t\t\t\tthis.shadow.mapSize.width = value;\n\t\t\t}\n\t\t},\n\t\tshadowMapHeight: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.' );\n\t\t\t\tthis.shadow.mapSize.height = value;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.defineProperties( BufferAttribute.prototype, {\n\t\tlength: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.BufferAttribute: .length has been deprecated. Please use .count.' );\n\t\t\t\treturn this.array.length;\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.assign( BufferGeometry.prototype, {\n\t\taddIndex: function ( index ) {\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().' );\n\t\t\tthis.setIndex( index );\n\t\t},\n\t\taddDrawCall: function ( start, count, indexOffset ) {\n\t\t\tif ( indexOffset !== undefined ) {\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.' );\n\t\t\t}\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .addDrawCall() is now .addGroup().' );\n\t\t\tthis.addGroup( start, count );\n\t\t},\n\t\tclearDrawCalls: function () {\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().' );\n\t\t\tthis.clearGroups();\n\t\t},\n\t\tcomputeTangents: function () {\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeTangents() has been removed.' );\n\t\t},\n\t\tcomputeOffsets: function () {\n\t\t\tconsole.warn( 'THREE.BufferGeometry: .computeOffsets() has been removed.' );\n\t\t}\n\t} );\n\n\tObject.defineProperties( BufferGeometry.prototype, {\n\t\tdrawcalls: {\n\t\t\tget: function () {\n\t\t\t\tconsole.error( 'THREE.BufferGeometry: .drawcalls has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\t\t\t}\n\t\t},\n\t\toffsets: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.BufferGeometry: .offsets has been renamed to .groups.' );\n\t\t\t\treturn this.groups;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.defineProperties( Material.prototype, {\n\t\twrapAround: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' );\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .wrapAround has been removed.' );\n\t\t\t}\n\t\t},\n\t\twrapRGB: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.' + this.type + ': .wrapRGB has been removed.' );\n\t\t\t\treturn new Color();\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( MeshPhongMaterial.prototype, {\n\t\tmetal: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.' );\n\t\t\t\treturn false;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead' );\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( ShaderMaterial.prototype, {\n\t\tderivatives: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\treturn this.extensions.derivatives;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.' );\n\t\t\t\tthis.extensions.derivatives = value;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tEventDispatcher.prototype = Object.assign( Object.create( {\n\n\t\t// Note: Extra base ensures these properties are not 'assign'ed.\n\n\t\tconstructor: EventDispatcher,\n\n\t\tapply: function ( target ) {\n\n\t\t\tconsole.warn( \"THREE.EventDispatcher: .apply is deprecated, \" +\n\t\t\t\t\t\"just inherit or Object.assign the prototype to mix-in.\" );\n\n\t\t\tObject.assign( target, this );\n\n\t\t}\n\n\t} ), EventDispatcher.prototype );\n\n\t//\n\n\tObject.defineProperties( Uniform.prototype, {\n\t\tdynamic: {\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.' );\n\t\t\t}\n\t\t},\n\t\tonUpdate: {\n\t\t\tvalue: function () {\n\t\t\t\tconsole.warn( 'THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.' );\n\t\t\t\treturn this;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.assign( WebGLRenderer.prototype, {\n\t\tsupportsFloatTextures: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \\'OES_texture_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_float' );\n\t\t},\n\t\tsupportsHalfFloatTextures: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \\'OES_texture_half_float\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_texture_half_float' );\n\t\t},\n\t\tsupportsStandardDerivatives: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \\'OES_standard_derivatives\\' ).' );\n\t\t\treturn this.extensions.get( 'OES_standard_derivatives' );\n\t\t},\n\t\tsupportsCompressedTextureS3TC: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \\'WEBGL_compressed_texture_s3tc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_s3tc' );\n\t\t},\n\t\tsupportsCompressedTexturePVRTC: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \\'WEBGL_compressed_texture_pvrtc\\' ).' );\n\t\t\treturn this.extensions.get( 'WEBGL_compressed_texture_pvrtc' );\n\t\t},\n\t\tsupportsBlendMinMax: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \\'EXT_blend_minmax\\' ).' );\n\t\t\treturn this.extensions.get( 'EXT_blend_minmax' );\n\t\t},\n\t\tsupportsVertexTextures: function () {\n\t\t\treturn this.capabilities.vertexTextures;\n\t\t},\n\t\tsupportsInstancedArrays: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \\'ANGLE_instanced_arrays\\' ).' );\n\t\t\treturn this.extensions.get( 'ANGLE_instanced_arrays' );\n\t\t},\n\t\tenableScissorTest: function ( boolean ) {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().' );\n\t\t\tthis.setScissorTest( boolean );\n\t\t},\n\t\tinitMaterial: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .initMaterial() has been removed.' );\n\t\t},\n\t\taddPrePlugin: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPrePlugin() has been removed.' );\n\t\t},\n\t\taddPostPlugin: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .addPostPlugin() has been removed.' );\n\t\t},\n\t\tupdateShadowMap: function () {\n\t\t\tconsole.warn( 'THREE.WebGLRenderer: .updateShadowMap() has been removed.' );\n\t\t}\n\t} );\n\n\tObject.defineProperties( WebGLRenderer.prototype, {\n\t\tshadowMapEnabled: {\n\t\t\tget: function () {\n\t\t\t\treturn this.shadowMap.enabled;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.' );\n\t\t\t\tthis.shadowMap.enabled = value;\n\t\t\t}\n\t\t},\n\t\tshadowMapType: {\n\t\t\tget: function () {\n\t\t\t\treturn this.shadowMap.type;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.' );\n\t\t\t\tthis.shadowMap.type = value;\n\t\t\t}\n\t\t},\n\t\tshadowMapCullFace: {\n\t\t\tget: function () {\n\t\t\t\treturn this.shadowMap.cullFace;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderer: .shadowMapCullFace is now .shadowMap.cullFace.' );\n\t\t\t\tthis.shadowMap.cullFace = value;\n\t\t\t}\n\t\t}\n\t} );\n\n\tObject.defineProperties( WebGLShadowMap.prototype, {\n\t\tcullFace: {\n\t\t\tget: function () {\n\t\t\t\treturn this.renderReverseSided ? CullFaceFront : CullFaceBack;\n\t\t\t},\n\t\t\tset: function ( cullFace ) {\n\t\t\t\tvar value = ( cullFace !== CullFaceBack );\n\t\t\t\tconsole.warn( \"WebGLRenderer: .shadowMap.cullFace is deprecated. Set .shadowMap.renderReverseSided to \" + value + \".\" );\n\t\t\t\tthis.renderReverseSided = value;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.defineProperties( WebGLRenderTarget.prototype, {\n\t\twrapS: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\treturn this.texture.wrapS;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.' );\n\t\t\t\tthis.texture.wrapS = value;\n\t\t\t}\n\t\t},\n\t\twrapT: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\treturn this.texture.wrapT;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.' );\n\t\t\t\tthis.texture.wrapT = value;\n\t\t\t}\n\t\t},\n\t\tmagFilter: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\treturn this.texture.magFilter;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.' );\n\t\t\t\tthis.texture.magFilter = value;\n\t\t\t}\n\t\t},\n\t\tminFilter: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\treturn this.texture.minFilter;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.' );\n\t\t\t\tthis.texture.minFilter = value;\n\t\t\t}\n\t\t},\n\t\tanisotropy: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\treturn this.texture.anisotropy;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.' );\n\t\t\t\tthis.texture.anisotropy = value;\n\t\t\t}\n\t\t},\n\t\toffset: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\treturn this.texture.offset;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .offset is now .texture.offset.' );\n\t\t\t\tthis.texture.offset = value;\n\t\t\t}\n\t\t},\n\t\trepeat: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\treturn this.texture.repeat;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .repeat is now .texture.repeat.' );\n\t\t\t\tthis.texture.repeat = value;\n\t\t\t}\n\t\t},\n\t\tformat: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\treturn this.texture.format;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .format is now .texture.format.' );\n\t\t\t\tthis.texture.format = value;\n\t\t\t}\n\t\t},\n\t\ttype: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\treturn this.texture.type;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .type is now .texture.type.' );\n\t\t\t\tthis.texture.type = value;\n\t\t\t}\n\t\t},\n\t\tgenerateMipmaps: {\n\t\t\tget: function () {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\treturn this.texture.generateMipmaps;\n\t\t\t},\n\t\t\tset: function ( value ) {\n\t\t\t\tconsole.warn( 'THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.' );\n\t\t\t\tthis.texture.generateMipmaps = value;\n\t\t\t}\n\t\t}\n\t} );\n\n\t//\n\n\tObject.assign( Audio.prototype, {\n\t\tload: function ( file ) {\n\t\t\tconsole.warn( 'THREE.Audio: .load has been deprecated. Please use THREE.AudioLoader.' );\n\t\t\tvar scope = this;\n\t\t\tvar audioLoader = new AudioLoader();\n\t\t\taudioLoader.load( file, function ( buffer ) {\n\t\t\t\tscope.setBuffer( buffer );\n\t\t\t} );\n\t\t\treturn this;\n\t\t}\n\t} );\n\n\tObject.assign( AudioAnalyser.prototype, {\n\t\tgetData: function ( file ) {\n\t\t\tconsole.warn( 'THREE.AudioAnalyser: .getData() is now .getFrequencyData().' );\n\t\t\treturn this.getFrequencyData();\n\t\t}\n\t} );\n\n\t//\n\n\tvar GeometryUtils = {\n\n\t\tmerge: function ( geometry1, geometry2, materialIndexOffset ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .merge() has been moved to Geometry. Use geometry.merge( geometry2, matrix, materialIndexOffset ) instead.' );\n\n\t\t\tvar matrix;\n\n\t\t\tif ( geometry2.isMesh ) {\n\n\t\t\t\tgeometry2.matrixAutoUpdate && geometry2.updateMatrix();\n\n\t\t\t\tmatrix = geometry2.matrix;\n\t\t\t\tgeometry2 = geometry2.geometry;\n\n\t\t\t}\n\n\t\t\tgeometry1.merge( geometry2, matrix, materialIndexOffset );\n\n\t\t},\n\n\t\tcenter: function ( geometry ) {\n\n\t\t\tconsole.warn( 'THREE.GeometryUtils: .center() has been moved to Geometry. Use geometry.center() instead.' );\n\t\t\treturn geometry.center();\n\n\t\t}\n\n\t};\n\n\tvar ImageUtils = {\n\n\t\tcrossOrigin: undefined,\n\n\t\tloadTexture: function ( url, mapping, onLoad, onError ) {\n\n\t\t\tconsole.warn( 'THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.' );\n\n\t\t\tvar loader = new TextureLoader();\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\t\tvar texture = loader.load( url, onLoad, undefined, onError );\n\n\t\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tloadTextureCube: function ( urls, mapping, onLoad, onError ) {\n\n\t\t\tconsole.warn( 'THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.' );\n\n\t\t\tvar loader = new CubeTextureLoader();\n\t\t\tloader.setCrossOrigin( this.crossOrigin );\n\n\t\t\tvar texture = loader.load( urls, onLoad, undefined, onError );\n\n\t\t\tif ( mapping ) texture.mapping = mapping;\n\n\t\t\treturn texture;\n\n\t\t},\n\n\t\tloadCompressedTexture: function () {\n\n\t\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.' );\n\n\t\t},\n\n\t\tloadCompressedTextureCube: function () {\n\n\t\t\tconsole.error( 'THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.' );\n\n\t\t}\n\n\t};\n\n\t//\n\n\tfunction Projector () {\n\n\t\tconsole.error( 'THREE.Projector has been moved to /examples/js/renderers/Projector.js.' );\n\n\t\tthis.projectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .projectVector() is now vector.project().' );\n\t\t\tvector.project( camera );\n\n\t\t};\n\n\t\tthis.unprojectVector = function ( vector, camera ) {\n\n\t\t\tconsole.warn( 'THREE.Projector: .unprojectVector() is now vector.unproject().' );\n\t\t\tvector.unproject( camera );\n\n\t\t};\n\n\t\tthis.pickingRay = function ( vector, camera ) {\n\n\t\t\tconsole.error( 'THREE.Projector: .pickingRay() is now raycaster.setFromCamera().' );\n\n\t\t};\n\n\t}\n\n\t//\n\n\tfunction CanvasRenderer () {\n\n\t\tconsole.error( 'THREE.CanvasRenderer has been moved to /examples/js/renderers/CanvasRenderer.js' );\n\n\t\tthis.domElement = document.createElementNS( 'http://www.w3.org/1999/xhtml', 'canvas' );\n\t\tthis.clear = function () {};\n\t\tthis.render = function () {};\n\t\tthis.setClearColor = function () {};\n\t\tthis.setSize = function () {};\n\n\t}\n\n\texports.WebGLRenderTargetCube = WebGLRenderTargetCube;\n\texports.WebGLRenderTarget = WebGLRenderTarget;\n\texports.WebGLRenderer = WebGLRenderer;\n\texports.ShaderLib = ShaderLib;\n\texports.UniformsLib = UniformsLib;\n\texports.UniformsUtils = UniformsUtils;\n\texports.ShaderChunk = ShaderChunk;\n\texports.FogExp2 = FogExp2;\n\texports.Fog = Fog;\n\texports.Scene = Scene;\n\texports.LensFlare = LensFlare;\n\texports.Sprite = Sprite;\n\texports.LOD = LOD;\n\texports.SkinnedMesh = SkinnedMesh;\n\texports.Skeleton = Skeleton;\n\texports.Bone = Bone;\n\texports.Mesh = Mesh;\n\texports.LineSegments = LineSegments;\n\texports.Line = Line;\n\texports.Points = Points;\n\texports.Group = Group;\n\texports.VideoTexture = VideoTexture;\n\texports.DataTexture = DataTexture;\n\texports.CompressedTexture = CompressedTexture;\n\texports.CubeTexture = CubeTexture;\n\texports.CanvasTexture = CanvasTexture;\n\texports.DepthTexture = DepthTexture;\n\texports.TextureIdCount = TextureIdCount;\n\texports.Texture = Texture;\n\texports.MaterialIdCount = MaterialIdCount;\n\texports.CompressedTextureLoader = CompressedTextureLoader;\n\texports.BinaryTextureLoader = BinaryTextureLoader;\n\texports.DataTextureLoader = DataTextureLoader;\n\texports.CubeTextureLoader = CubeTextureLoader;\n\texports.TextureLoader = TextureLoader;\n\texports.ObjectLoader = ObjectLoader;\n\texports.MaterialLoader = MaterialLoader;\n\texports.BufferGeometryLoader = BufferGeometryLoader;\n\texports.DefaultLoadingManager = DefaultLoadingManager;\n\texports.LoadingManager = LoadingManager;\n\texports.JSONLoader = JSONLoader;\n\texports.ImageLoader = ImageLoader;\n\texports.FontLoader = FontLoader;\n\texports.XHRLoader = XHRLoader;\n\texports.Loader = Loader;\n\texports.Cache = Cache;\n\texports.AudioLoader = AudioLoader;\n\texports.SpotLightShadow = SpotLightShadow;\n\texports.SpotLight = SpotLight;\n\texports.PointLight = PointLight;\n\texports.HemisphereLight = HemisphereLight;\n\texports.DirectionalLightShadow = DirectionalLightShadow;\n\texports.DirectionalLight = DirectionalLight;\n\texports.AmbientLight = AmbientLight;\n\texports.LightShadow = LightShadow;\n\texports.Light = Light;\n\texports.StereoCamera = StereoCamera;\n\texports.PerspectiveCamera = PerspectiveCamera;\n\texports.OrthographicCamera = OrthographicCamera;\n\texports.CubeCamera = CubeCamera;\n\texports.Camera = Camera;\n\texports.AudioListener = AudioListener;\n\texports.PositionalAudio = PositionalAudio;\n\texports.getAudioContext = getAudioContext;\n\texports.AudioAnalyser = AudioAnalyser;\n\texports.Audio = Audio;\n\texports.VectorKeyframeTrack = VectorKeyframeTrack;\n\texports.StringKeyframeTrack = StringKeyframeTrack;\n\texports.QuaternionKeyframeTrack = QuaternionKeyframeTrack;\n\texports.NumberKeyframeTrack = NumberKeyframeTrack;\n\texports.ColorKeyframeTrack = ColorKeyframeTrack;\n\texports.BooleanKeyframeTrack = BooleanKeyframeTrack;\n\texports.PropertyMixer = PropertyMixer;\n\texports.PropertyBinding = PropertyBinding;\n\texports.KeyframeTrack = KeyframeTrack;\n\texports.AnimationUtils = AnimationUtils;\n\texports.AnimationObjectGroup = AnimationObjectGroup;\n\texports.AnimationMixer = AnimationMixer;\n\texports.AnimationClip = AnimationClip;\n\texports.Uniform = Uniform;\n\texports.InstancedBufferGeometry = InstancedBufferGeometry;\n\texports.BufferGeometry = BufferGeometry;\n\texports.GeometryIdCount = GeometryIdCount;\n\texports.Geometry = Geometry;\n\texports.InterleavedBufferAttribute = InterleavedBufferAttribute;\n\texports.InstancedInterleavedBuffer = InstancedInterleavedBuffer;\n\texports.InterleavedBuffer = InterleavedBuffer;\n\texports.InstancedBufferAttribute = InstancedBufferAttribute;\n\texports.DynamicBufferAttribute = DynamicBufferAttribute;\n\texports.Float64Attribute = Float64Attribute;\n\texports.Float32Attribute = Float32Attribute;\n\texports.Uint32Attribute = Uint32Attribute;\n\texports.Int32Attribute = Int32Attribute;\n\texports.Uint16Attribute = Uint16Attribute;\n\texports.Int16Attribute = Int16Attribute;\n\texports.Uint8ClampedAttribute = Uint8ClampedAttribute;\n\texports.Uint8Attribute = Uint8Attribute;\n\texports.Int8Attribute = Int8Attribute;\n\texports.BufferAttribute = BufferAttribute;\n\texports.Face3 = Face3;\n\texports.Object3DIdCount = Object3DIdCount;\n\texports.Object3D = Object3D;\n\texports.Raycaster = Raycaster;\n\texports.Layers = Layers;\n\texports.EventDispatcher = EventDispatcher;\n\texports.Clock = Clock;\n\texports.QuaternionLinearInterpolant = QuaternionLinearInterpolant;\n\texports.LinearInterpolant = LinearInterpolant;\n\texports.DiscreteInterpolant = DiscreteInterpolant;\n\texports.CubicInterpolant = CubicInterpolant;\n\texports.Interpolant = Interpolant;\n\texports.Triangle = Triangle;\n\texports.Spline = Spline;\n\texports.Math = _Math;\n\texports.Spherical = Spherical;\n\texports.Plane = Plane;\n\texports.Frustum = Frustum;\n\texports.Sphere = Sphere;\n\texports.Ray = Ray;\n\texports.Matrix4 = Matrix4;\n\texports.Matrix3 = Matrix3;\n\texports.Box3 = Box3;\n\texports.Box2 = Box2;\n\texports.Line3 = Line3;\n\texports.Euler = Euler;\n\texports.Vector4 = Vector4;\n\texports.Vector3 = Vector3;\n\texports.Vector2 = Vector2;\n\texports.Quaternion = Quaternion;\n\texports.ColorKeywords = ColorKeywords;\n\texports.Color = Color;\n\texports.MorphBlendMesh = MorphBlendMesh;\n\texports.ImmediateRenderObject = ImmediateRenderObject;\n\texports.VertexNormalsHelper = VertexNormalsHelper;\n\texports.SpotLightHelper = SpotLightHelper;\n\texports.SkeletonHelper = SkeletonHelper;\n\texports.PointLightHelper = PointLightHelper;\n\texports.HemisphereLightHelper = HemisphereLightHelper;\n\texports.GridHelper = GridHelper;\n\texports.FaceNormalsHelper = FaceNormalsHelper;\n\texports.DirectionalLightHelper = DirectionalLightHelper;\n\texports.CameraHelper = CameraHelper;\n\texports.BoundingBoxHelper = BoundingBoxHelper;\n\texports.BoxHelper = BoxHelper;\n\texports.ArrowHelper = ArrowHelper;\n\texports.AxisHelper = AxisHelper;\n\texports.ClosedSplineCurve3 = ClosedSplineCurve3;\n\texports.CatmullRomCurve3 = CatmullRomCurve3;\n\texports.SplineCurve3 = SplineCurve3;\n\texports.CubicBezierCurve3 = CubicBezierCurve3;\n\texports.QuadraticBezierCurve3 = QuadraticBezierCurve3;\n\texports.LineCurve3 = LineCurve3;\n\texports.ArcCurve = ArcCurve;\n\texports.EllipseCurve = EllipseCurve;\n\texports.SplineCurve = SplineCurve;\n\texports.CubicBezierCurve = CubicBezierCurve;\n\texports.QuadraticBezierCurve = QuadraticBezierCurve;\n\texports.LineCurve = LineCurve;\n\texports.Shape = Shape;\n\texports.ShapePath = ShapePath;\n\texports.Path = Path;\n\texports.Font = Font;\n\texports.CurvePath = CurvePath;\n\texports.Curve = Curve;\n\texports.ShapeUtils = ShapeUtils;\n\texports.SceneUtils = SceneUtils;\n\texports.CurveUtils = CurveUtils;\n\texports.WireframeGeometry = WireframeGeometry;\n\texports.ParametricGeometry = ParametricGeometry;\n\texports.ParametricBufferGeometry = ParametricBufferGeometry;\n\texports.TetrahedronGeometry = TetrahedronGeometry;\n\texports.TetrahedronBufferGeometry = TetrahedronBufferGeometry;\n\texports.OctahedronGeometry = OctahedronGeometry;\n\texports.OctahedronBufferGeometry = OctahedronBufferGeometry;\n\texports.IcosahedronGeometry = IcosahedronGeometry;\n\texports.IcosahedronBufferGeometry = IcosahedronBufferGeometry;\n\texports.DodecahedronGeometry = DodecahedronGeometry;\n\texports.DodecahedronBufferGeometry = DodecahedronBufferGeometry;\n\texports.PolyhedronGeometry = PolyhedronGeometry;\n\texports.PolyhedronBufferGeometry = PolyhedronBufferGeometry;\n\texports.TubeGeometry = TubeGeometry;\n\texports.TubeBufferGeometry = TubeBufferGeometry;\n\texports.TorusKnotGeometry = TorusKnotGeometry;\n\texports.TorusKnotBufferGeometry = TorusKnotBufferGeometry;\n\texports.TorusGeometry = TorusGeometry;\n\texports.TorusBufferGeometry = TorusBufferGeometry;\n\texports.TextGeometry = TextGeometry;\n\texports.SphereBufferGeometry = SphereBufferGeometry;\n\texports.SphereGeometry = SphereGeometry;\n\texports.RingGeometry = RingGeometry;\n\texports.RingBufferGeometry = RingBufferGeometry;\n\texports.PlaneBufferGeometry = PlaneBufferGeometry;\n\texports.PlaneGeometry = PlaneGeometry;\n\texports.LatheGeometry = LatheGeometry;\n\texports.LatheBufferGeometry = LatheBufferGeometry;\n\texports.ShapeGeometry = ShapeGeometry;\n\texports.ExtrudeGeometry = ExtrudeGeometry;\n\texports.EdgesGeometry = EdgesGeometry;\n\texports.ConeGeometry = ConeGeometry;\n\texports.ConeBufferGeometry = ConeBufferGeometry;\n\texports.CylinderGeometry = CylinderGeometry;\n\texports.CylinderBufferGeometry = CylinderBufferGeometry;\n\texports.CircleBufferGeometry = CircleBufferGeometry;\n\texports.CircleGeometry = CircleGeometry;\n\texports.BoxBufferGeometry = BoxBufferGeometry;\n\texports.BoxGeometry = BoxGeometry;\n\texports.ShadowMaterial = ShadowMaterial;\n\texports.SpriteMaterial = SpriteMaterial;\n\texports.RawShaderMaterial = RawShaderMaterial;\n\texports.ShaderMaterial = ShaderMaterial;\n\texports.PointsMaterial = PointsMaterial;\n\texports.MultiMaterial = MultiMaterial;\n\texports.MeshPhysicalMaterial = MeshPhysicalMaterial;\n\texports.MeshStandardMaterial = MeshStandardMaterial;\n\texports.MeshPhongMaterial = MeshPhongMaterial;\n\texports.MeshNormalMaterial = MeshNormalMaterial;\n\texports.MeshLambertMaterial = MeshLambertMaterial;\n\texports.MeshDepthMaterial = MeshDepthMaterial;\n\texports.MeshBasicMaterial = MeshBasicMaterial;\n\texports.LineDashedMaterial = LineDashedMaterial;\n\texports.LineBasicMaterial = LineBasicMaterial;\n\texports.Material = Material;\n\texports.REVISION = REVISION;\n\texports.MOUSE = MOUSE;\n\texports.CullFaceNone = CullFaceNone;\n\texports.CullFaceBack = CullFaceBack;\n\texports.CullFaceFront = CullFaceFront;\n\texports.CullFaceFrontBack = CullFaceFrontBack;\n\texports.FrontFaceDirectionCW = FrontFaceDirectionCW;\n\texports.FrontFaceDirectionCCW = FrontFaceDirectionCCW;\n\texports.BasicShadowMap = BasicShadowMap;\n\texports.PCFShadowMap = PCFShadowMap;\n\texports.PCFSoftShadowMap = PCFSoftShadowMap;\n\texports.FrontSide = FrontSide;\n\texports.BackSide = BackSide;\n\texports.DoubleSide = DoubleSide;\n\texports.FlatShading = FlatShading;\n\texports.SmoothShading = SmoothShading;\n\texports.NoColors = NoColors;\n\texports.FaceColors = FaceColors;\n\texports.VertexColors = VertexColors;\n\texports.NoBlending = NoBlending;\n\texports.NormalBlending = NormalBlending;\n\texports.AdditiveBlending = AdditiveBlending;\n\texports.SubtractiveBlending = SubtractiveBlending;\n\texports.MultiplyBlending = MultiplyBlending;\n\texports.CustomBlending = CustomBlending;\n\texports.BlendingMode = BlendingMode;\n\texports.AddEquation = AddEquation;\n\texports.SubtractEquation = SubtractEquation;\n\texports.ReverseSubtractEquation = ReverseSubtractEquation;\n\texports.MinEquation = MinEquation;\n\texports.MaxEquation = MaxEquation;\n\texports.ZeroFactor = ZeroFactor;\n\texports.OneFactor = OneFactor;\n\texports.SrcColorFactor = SrcColorFactor;\n\texports.OneMinusSrcColorFactor = OneMinusSrcColorFactor;\n\texports.SrcAlphaFactor = SrcAlphaFactor;\n\texports.OneMinusSrcAlphaFactor = OneMinusSrcAlphaFactor;\n\texports.DstAlphaFactor = DstAlphaFactor;\n\texports.OneMinusDstAlphaFactor = OneMinusDstAlphaFactor;\n\texports.DstColorFactor = DstColorFactor;\n\texports.OneMinusDstColorFactor = OneMinusDstColorFactor;\n\texports.SrcAlphaSaturateFactor = SrcAlphaSaturateFactor;\n\texports.NeverDepth = NeverDepth;\n\texports.AlwaysDepth = AlwaysDepth;\n\texports.LessDepth = LessDepth;\n\texports.LessEqualDepth = LessEqualDepth;\n\texports.EqualDepth = EqualDepth;\n\texports.GreaterEqualDepth = GreaterEqualDepth;\n\texports.GreaterDepth = GreaterDepth;\n\texports.NotEqualDepth = NotEqualDepth;\n\texports.MultiplyOperation = MultiplyOperation;\n\texports.MixOperation = MixOperation;\n\texports.AddOperation = AddOperation;\n\texports.NoToneMapping = NoToneMapping;\n\texports.LinearToneMapping = LinearToneMapping;\n\texports.ReinhardToneMapping = ReinhardToneMapping;\n\texports.Uncharted2ToneMapping = Uncharted2ToneMapping;\n\texports.CineonToneMapping = CineonToneMapping;\n\texports.UVMapping = UVMapping;\n\texports.CubeReflectionMapping = CubeReflectionMapping;\n\texports.CubeRefractionMapping = CubeRefractionMapping;\n\texports.EquirectangularReflectionMapping = EquirectangularReflectionMapping;\n\texports.EquirectangularRefractionMapping = EquirectangularRefractionMapping;\n\texports.SphericalReflectionMapping = SphericalReflectionMapping;\n\texports.CubeUVReflectionMapping = CubeUVReflectionMapping;\n\texports.CubeUVRefractionMapping = CubeUVRefractionMapping;\n\texports.TextureMapping = TextureMapping;\n\texports.RepeatWrapping = RepeatWrapping;\n\texports.ClampToEdgeWrapping = ClampToEdgeWrapping;\n\texports.MirroredRepeatWrapping = MirroredRepeatWrapping;\n\texports.TextureWrapping = TextureWrapping;\n\texports.NearestFilter = NearestFilter;\n\texports.NearestMipMapNearestFilter = NearestMipMapNearestFilter;\n\texports.NearestMipMapLinearFilter = NearestMipMapLinearFilter;\n\texports.LinearFilter = LinearFilter;\n\texports.LinearMipMapNearestFilter = LinearMipMapNearestFilter;\n\texports.LinearMipMapLinearFilter = LinearMipMapLinearFilter;\n\texports.TextureFilter = TextureFilter;\n\texports.UnsignedByteType = UnsignedByteType;\n\texports.ByteType = ByteType;\n\texports.ShortType = ShortType;\n\texports.UnsignedShortType = UnsignedShortType;\n\texports.IntType = IntType;\n\texports.UnsignedIntType = UnsignedIntType;\n\texports.FloatType = FloatType;\n\texports.HalfFloatType = HalfFloatType;\n\texports.UnsignedShort4444Type = UnsignedShort4444Type;\n\texports.UnsignedShort5551Type = UnsignedShort5551Type;\n\texports.UnsignedShort565Type = UnsignedShort565Type;\n\texports.UnsignedInt248Type = UnsignedInt248Type;\n\texports.AlphaFormat = AlphaFormat;\n\texports.RGBFormat = RGBFormat;\n\texports.RGBAFormat = RGBAFormat;\n\texports.LuminanceFormat = LuminanceFormat;\n\texports.LuminanceAlphaFormat = LuminanceAlphaFormat;\n\texports.RGBEFormat = RGBEFormat;\n\texports.DepthFormat = DepthFormat;\n\texports.DepthStencilFormat = DepthStencilFormat;\n\texports.RGB_S3TC_DXT1_Format = RGB_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT1_Format = RGBA_S3TC_DXT1_Format;\n\texports.RGBA_S3TC_DXT3_Format = RGBA_S3TC_DXT3_Format;\n\texports.RGBA_S3TC_DXT5_Format = RGBA_S3TC_DXT5_Format;\n\texports.RGB_PVRTC_4BPPV1_Format = RGB_PVRTC_4BPPV1_Format;\n\texports.RGB_PVRTC_2BPPV1_Format = RGB_PVRTC_2BPPV1_Format;\n\texports.RGBA_PVRTC_4BPPV1_Format = RGBA_PVRTC_4BPPV1_Format;\n\texports.RGBA_PVRTC_2BPPV1_Format = RGBA_PVRTC_2BPPV1_Format;\n\texports.RGB_ETC1_Format = RGB_ETC1_Format;\n\texports.LoopOnce = LoopOnce;\n\texports.LoopRepeat = LoopRepeat;\n\texports.LoopPingPong = LoopPingPong;\n\texports.InterpolateDiscrete = InterpolateDiscrete;\n\texports.InterpolateLinear = InterpolateLinear;\n\texports.InterpolateSmooth = InterpolateSmooth;\n\texports.ZeroCurvatureEnding = ZeroCurvatureEnding;\n\texports.ZeroSlopeEnding = ZeroSlopeEnding;\n\texports.WrapAroundEnding = WrapAroundEnding;\n\texports.TrianglesDrawMode = TrianglesDrawMode;\n\texports.TriangleStripDrawMode = TriangleStripDrawMode;\n\texports.TriangleFanDrawMode = TriangleFanDrawMode;\n\texports.LinearEncoding = LinearEncoding;\n\texports.sRGBEncoding = sRGBEncoding;\n\texports.GammaEncoding = GammaEncoding;\n\texports.RGBEEncoding = RGBEEncoding;\n\texports.LogLuvEncoding = LogLuvEncoding;\n\texports.RGBM7Encoding = RGBM7Encoding;\n\texports.RGBM16Encoding = RGBM16Encoding;\n\texports.RGBDEncoding = RGBDEncoding;\n\texports.BasicDepthPacking = BasicDepthPacking;\n\texports.RGBADepthPacking = RGBADepthPacking;\n\texports.CubeGeometry = BoxGeometry;\n\texports.Face4 = Face4;\n\texports.LineStrip = LineStrip;\n\texports.LinePieces = LinePieces;\n\texports.MeshFaceMaterial = MultiMaterial;\n\texports.PointCloud = PointCloud;\n\texports.Particle = Sprite;\n\texports.ParticleSystem = ParticleSystem;\n\texports.PointCloudMaterial = PointCloudMaterial;\n\texports.ParticleBasicMaterial = ParticleBasicMaterial;\n\texports.ParticleSystemMaterial = ParticleSystemMaterial;\n\texports.Vertex = Vertex;\n\texports.EdgesHelper = EdgesHelper;\n\texports.WireframeHelper = WireframeHelper;\n\texports.GeometryUtils = GeometryUtils;\n\texports.ImageUtils = ImageUtils;\n\texports.Projector = Projector;\n\texports.CanvasRenderer = CanvasRenderer;\n\n\tObject.defineProperty(exports, '__esModule', { value: true });\n\n\tObject.defineProperty( exports, 'AudioContext', {\n\t\tget: function () {\n\t\t\treturn exports.getAudioContext();\n\t\t}\n\t});\n\n})));\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/three/build/three.js\n// module id = 6\n// module chunks = 0","module.exports = function( THREE ) {\n\t/**\n\t * @author qiao / https://github.com/qiao\n\t * @author mrdoob / http://mrdoob.com\n\t * @author alteredq / http://alteredqualia.com/\n\t * @author WestLangley / http://github.com/WestLangley\n\t * @author erich666 / http://erichaines.com\n\t */\n\n// This set of controls performs orbiting, dollying (zooming), and panning.\n// Unlike TrackballControls, it maintains the \"up\" direction object.up (+Y by default).\n//\n// Orbit - left mouse / touch: one finger move\n// Zoom - middle mouse, or mousewheel / touch: two finger spread or squish\n// Pan - right mouse, or arrow keys / touch: three finter swipe\n\n\tfunction OrbitControls( object, domElement ) {\n\n\t\tthis.object = object;\n\n\t\tthis.domElement = ( domElement !== undefined ) ? domElement : document;\n\n\t\t// Set to false to disable this control\n\t\tthis.enabled = true;\n\n\t\t// \"target\" sets the location of focus, where the object orbits around\n\t\tthis.target = new THREE.Vector3();\n\n\t\t// How far you can dolly in and out ( PerspectiveCamera only )\n\t\tthis.minDistance = 0;\n\t\tthis.maxDistance = Infinity;\n\n\t\t// How far you can zoom in and out ( OrthographicCamera only )\n\t\tthis.minZoom = 0;\n\t\tthis.maxZoom = Infinity;\n\n\t\t// How far you can orbit vertically, upper and lower limits.\n\t\t// Range is 0 to Math.PI radians.\n\t\tthis.minPolarAngle = 0; // radians\n\t\tthis.maxPolarAngle = Math.PI; // radians\n\n\t\t// How far you can orbit horizontally, upper and lower limits.\n\t\t// If set, must be a sub-interval of the interval [ - Math.PI, Math.PI ].\n\t\tthis.minAzimuthAngle = - Infinity; // radians\n\t\tthis.maxAzimuthAngle = Infinity; // radians\n\n\t\t// Set to true to enable damping (inertia)\n\t\t// If damping is enabled, you must call controls.update() in your animation loop\n\t\tthis.enableDamping = false;\n\t\tthis.dampingFactor = 0.25;\n\n\t\t// This option actually enables dollying in and out; left as \"zoom\" for backwards compatibility.\n\t\t// Set to false to disable zooming\n\t\tthis.enableZoom = true;\n\t\tthis.zoomSpeed = 1.0;\n\n\t\t// Set to false to disable rotating\n\t\tthis.enableRotate = true;\n\t\tthis.rotateSpeed = 1.0;\n\n\t\t// Set to false to disable panning\n\t\tthis.enablePan = true;\n\t\tthis.keyPanSpeed = 7.0;\t// pixels moved per arrow key push\n\n\t\t// Set to true to automatically rotate around the target\n\t\t// If auto-rotate is enabled, you must call controls.update() in your animation loop\n\t\tthis.autoRotate = false;\n\t\tthis.autoRotateSpeed = 2.0; // 30 seconds per round when fps is 60\n\n\t\t// Set to false to disable use of the keys\n\t\tthis.enableKeys = true;\n\n\t\t// The four arrow keys\n\t\tthis.keys = { LEFT: 37, UP: 38, RIGHT: 39, BOTTOM: 40 };\n\n\t\t// Mouse buttons\n\t\tthis.mouseButtons = { ORBIT: THREE.MOUSE.LEFT, ZOOM: THREE.MOUSE.MIDDLE, PAN: THREE.MOUSE.RIGHT };\n\n\t\t// for reset\n\t\tthis.target0 = this.target.clone();\n\t\tthis.position0 = this.object.position.clone();\n\t\tthis.zoom0 = this.object.zoom;\n\n\t\t//\n\t\t// public methods\n\t\t//\n\n\t\tthis.getPolarAngle = function () {\n\n\t\t\treturn spherical.phi;\n\n\t\t};\n\n\t\tthis.getAzimuthalAngle = function () {\n\n\t\t\treturn spherical.theta;\n\n\t\t};\n\n\t\tthis.reset = function () {\n\n\t\t\tscope.target.copy( scope.target0 );\n\t\t\tscope.object.position.copy( scope.position0 );\n\t\t\tscope.object.zoom = scope.zoom0;\n\n\t\t\tscope.object.updateProjectionMatrix();\n\t\t\tscope.dispatchEvent( changeEvent );\n\n\t\t\tscope.update();\n\n\t\t\tstate = STATE.NONE;\n\n\t\t};\n\n\t\t// this method is exposed, but perhaps it would be better if we can make it private...\n\t\tthis.update = function() {\n\n\t\t\tvar offset = new THREE.Vector3();\n\n\t\t\t// so camera.up is the orbit axis\n\t\t\tvar quat = new THREE.Quaternion().setFromUnitVectors( object.up, new THREE.Vector3( 0, 1, 0 ) );\n\t\t\tvar quatInverse = quat.clone().inverse();\n\n\t\t\tvar lastPosition = new THREE.Vector3();\n\t\t\tvar lastQuaternion = new THREE.Quaternion();\n\n\t\t\treturn function update () {\n\n\t\t\t\tvar position = scope.object.position;\n\n\t\t\t\toffset.copy( position ).sub( scope.target );\n\n\t\t\t\t// rotate offset to \"y-axis-is-up\" space\n\t\t\t\toffset.applyQuaternion( quat );\n\n\t\t\t\t// angle from z-axis around y-axis\n\t\t\t\tspherical.setFromVector3( offset );\n\n\t\t\t\tif ( scope.autoRotate && state === STATE.NONE ) {\n\n\t\t\t\t\trotateLeft( getAutoRotationAngle() );\n\n\t\t\t\t}\n\n\t\t\t\tspherical.theta += sphericalDelta.theta;\n\t\t\t\tspherical.phi += sphericalDelta.phi;\n\n\t\t\t\t// restrict theta to be between desired limits\n\t\t\t\tspherical.theta = Math.max( scope.minAzimuthAngle, Math.min( scope.maxAzimuthAngle, spherical.theta ) );\n\n\t\t\t\t// restrict phi to be between desired limits\n\t\t\t\tspherical.phi = Math.max( scope.minPolarAngle, Math.min( scope.maxPolarAngle, spherical.phi ) );\n\n\t\t\t\tspherical.makeSafe();\n\n\n\t\t\t\tspherical.radius *= scale;\n\n\t\t\t\t// restrict radius to be between desired limits\n\t\t\t\tspherical.radius = Math.max( scope.minDistance, Math.min( scope.maxDistance, spherical.radius ) );\n\n\t\t\t\t// move target to panned location\n\t\t\t\tscope.target.add( panOffset );\n\n\t\t\t\toffset.setFromSpherical( spherical );\n\n\t\t\t\t// rotate offset back to \"camera-up-vector-is-up\" space\n\t\t\t\toffset.applyQuaternion( quatInverse );\n\n\t\t\t\tposition.copy( scope.target ).add( offset );\n\n\t\t\t\tscope.object.lookAt( scope.target );\n\n\t\t\t\tif ( scope.enableDamping === true ) {\n\n\t\t\t\t\tsphericalDelta.theta *= ( 1 - scope.dampingFactor );\n\t\t\t\t\tsphericalDelta.phi *= ( 1 - scope.dampingFactor );\n\n\t\t\t\t} else {\n\n\t\t\t\t\tsphericalDelta.set( 0, 0, 0 );\n\n\t\t\t\t}\n\n\t\t\t\tscale = 1;\n\t\t\t\tpanOffset.set( 0, 0, 0 );\n\n\t\t\t\t// update condition is:\n\t\t\t\t// min(camera displacement, camera rotation in radians)^2 > EPS\n\t\t\t\t// using small-angle approximation cos(x/2) = 1 - x^2 / 8\n\n\t\t\t\tif ( zoomChanged ||\n\t\t\t\t\tlastPosition.distanceToSquared( scope.object.position ) > EPS ||\n\t\t\t\t\t8 * ( 1 - lastQuaternion.dot( scope.object.quaternion ) ) > EPS ) {\n\n\t\t\t\t\tscope.dispatchEvent( changeEvent );\n\n\t\t\t\t\tlastPosition.copy( scope.object.position );\n\t\t\t\t\tlastQuaternion.copy( scope.object.quaternion );\n\t\t\t\t\tzoomChanged = false;\n\n\t\t\t\t\treturn true;\n\n\t\t\t\t}\n\n\t\t\t\treturn false;\n\n\t\t\t};\n\n\t\t}();\n\n\t\tthis.dispose = function() {\n\n\t\t\tscope.domElement.removeEventListener( 'contextmenu', onContextMenu, false );\n\t\t\tscope.domElement.removeEventListener( 'mousedown', onMouseDown, false );\n\t\t\tscope.domElement.removeEventListener( 'wheel', onMouseWheel, false );\n\n\t\t\tscope.domElement.removeEventListener( 'touchstart', onTouchStart, false );\n\t\t\tscope.domElement.removeEventListener( 'touchend', onTouchEnd, false );\n\t\t\tscope.domElement.removeEventListener( 'touchmove', onTouchMove, false );\n\n\t\t\tdocument.removeEventListener( 'mousemove', onMouseMove, false );\n\t\t\tdocument.removeEventListener( 'mouseup', onMouseUp, false );\n\n\t\t\twindow.removeEventListener( 'keydown', onKeyDown, false );\n\n\t\t\t//scope.dispatchEvent( { type: 'dispose' } ); // should this be added here?\n\n\t\t};\n\n\t\t//\n\t\t// internals\n\t\t//\n\n\t\tvar scope = this;\n\n\t\tvar changeEvent = { type: 'change' };\n\t\tvar startEvent = { type: 'start' };\n\t\tvar endEvent = { type: 'end' };\n\n\t\tvar STATE = { NONE : - 1, ROTATE : 0, DOLLY : 1, PAN : 2, TOUCH_ROTATE : 3, TOUCH_DOLLY : 4, TOUCH_PAN : 5 };\n\n\t\tvar state = STATE.NONE;\n\n\t\tvar EPS = 0.000001;\n\n\t\t// current position in spherical coordinates\n\t\tvar spherical = new THREE.Spherical();\n\t\tvar sphericalDelta = new THREE.Spherical();\n\n\t\tvar scale = 1;\n\t\tvar panOffset = new THREE.Vector3();\n\t\tvar zoomChanged = false;\n\n\t\tvar rotateStart = new THREE.Vector2();\n\t\tvar rotateEnd = new THREE.Vector2();\n\t\tvar rotateDelta = new THREE.Vector2();\n\n\t\tvar panStart = new THREE.Vector2();\n\t\tvar panEnd = new THREE.Vector2();\n\t\tvar panDelta = new THREE.Vector2();\n\n\t\tvar dollyStart = new THREE.Vector2();\n\t\tvar dollyEnd = new THREE.Vector2();\n\t\tvar dollyDelta = new THREE.Vector2();\n\n\t\tfunction getAutoRotationAngle() {\n\n\t\t\treturn 2 * Math.PI / 60 / 60 * scope.autoRotateSpeed;\n\n\t\t}\n\n\t\tfunction getZoomScale() {\n\n\t\t\treturn Math.pow( 0.95, scope.zoomSpeed );\n\n\t\t}\n\n\t\tfunction rotateLeft( angle ) {\n\n\t\t\tsphericalDelta.theta -= angle;\n\n\t\t}\n\n\t\tfunction rotateUp( angle ) {\n\n\t\t\tsphericalDelta.phi -= angle;\n\n\t\t}\n\n\t\tvar panLeft = function() {\n\n\t\t\tvar v = new THREE.Vector3();\n\n\t\t\treturn function panLeft( distance, objectMatrix ) {\n\n\t\t\t\tv.setFromMatrixColumn( objectMatrix, 0 ); // get X column of objectMatrix\n\t\t\t\tv.multiplyScalar( - distance );\n\n\t\t\t\tpanOffset.add( v );\n\n\t\t\t};\n\n\t\t}();\n\n\t\tvar panUp = function() {\n\n\t\t\tvar v = new THREE.Vector3();\n\n\t\t\treturn function panUp( distance, objectMatrix ) {\n\n\t\t\t\tv.setFromMatrixColumn( objectMatrix, 1 ); // get Y column of objectMatrix\n\t\t\t\tv.multiplyScalar( distance );\n\n\t\t\t\tpanOffset.add( v );\n\n\t\t\t};\n\n\t\t}();\n\n\t\t// deltaX and deltaY are in pixels; right and down are positive\n\t\tvar pan = function() {\n\n\t\t\tvar offset = new THREE.Vector3();\n\n\t\t\treturn function pan ( deltaX, deltaY ) {\n\n\t\t\t\tvar element = scope.domElement === document ? scope.domElement.body : scope.domElement;\n\n\t\t\t\tif ( scope.object instanceof THREE.PerspectiveCamera ) {\n\n\t\t\t\t\t// perspective\n\t\t\t\t\tvar position = scope.object.position;\n\t\t\t\t\toffset.copy( position ).sub( scope.target );\n\t\t\t\t\tvar targetDistance = offset.length();\n\n\t\t\t\t\t// half of the fov is center to top of screen\n\t\t\t\t\ttargetDistance *= Math.tan( ( scope.object.fov / 2 ) * Math.PI / 180.0 );\n\n\t\t\t\t\t// we actually don't use screenWidth, since perspective camera is fixed to screen height\n\t\t\t\t\tpanLeft( 2 * deltaX * targetDistance / element.clientHeight, scope.object.matrix );\n\t\t\t\t\tpanUp( 2 * deltaY * targetDistance / element.clientHeight, scope.object.matrix );\n\n\t\t\t\t} else if ( scope.object instanceof THREE.OrthographicCamera ) {\n\n\t\t\t\t\t// orthographic\n\t\t\t\t\tpanLeft( deltaX * ( scope.object.right - scope.object.left ) / scope.object.zoom / element.clientWidth, scope.object.matrix );\n\t\t\t\t\tpanUp( deltaY * ( scope.object.top - scope.object.bottom ) / scope.object.zoom / element.clientHeight, scope.object.matrix );\n\n\t\t\t\t} else {\n\n\t\t\t\t\t// camera neither orthographic nor perspective\n\t\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - pan disabled.' );\n\t\t\t\t\tscope.enablePan = false;\n\n\t\t\t\t}\n\n\t\t\t};\n\n\t\t}();\n\n\t\tfunction dollyIn( dollyScale ) {\n\n\t\t\tif ( scope.object instanceof THREE.PerspectiveCamera ) {\n\n\t\t\t\tscale /= dollyScale;\n\n\t\t\t} else if ( scope.object instanceof THREE.OrthographicCamera ) {\n\n\t\t\t\tscope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom * dollyScale ) );\n\t\t\t\tscope.object.updateProjectionMatrix();\n\t\t\t\tzoomChanged = true;\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );\n\t\t\t\tscope.enableZoom = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction dollyOut( dollyScale ) {\n\n\t\t\tif ( scope.object instanceof THREE.PerspectiveCamera ) {\n\n\t\t\t\tscale *= dollyScale;\n\n\t\t\t} else if ( scope.object instanceof THREE.OrthographicCamera ) {\n\n\t\t\t\tscope.object.zoom = Math.max( scope.minZoom, Math.min( scope.maxZoom, scope.object.zoom / dollyScale ) );\n\t\t\t\tscope.object.updateProjectionMatrix();\n\t\t\t\tzoomChanged = true;\n\n\t\t\t} else {\n\n\t\t\t\tconsole.warn( 'WARNING: OrbitControls.js encountered an unknown camera type - dolly/zoom disabled.' );\n\t\t\t\tscope.enableZoom = false;\n\n\t\t\t}\n\n\t\t}\n\n\t\t//\n\t\t// event callbacks - update the object state\n\t\t//\n\n\t\tfunction handleMouseDownRotate( event ) {\n\n\t\t\t//console.log( 'handleMouseDownRotate' );\n\n\t\t\trotateStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseDownDolly( event ) {\n\n\t\t\t//console.log( 'handleMouseDownDolly' );\n\n\t\t\tdollyStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseDownPan( event ) {\n\n\t\t\t//console.log( 'handleMouseDownPan' );\n\n\t\t\tpanStart.set( event.clientX, event.clientY );\n\n\t\t}\n\n\t\tfunction handleMouseMoveRotate( event ) {\n\n\t\t\t//console.log( 'handleMouseMoveRotate' );\n\n\t\t\trotateEnd.set( event.clientX, event.clientY );\n\t\t\trotateDelta.subVectors( rotateEnd, rotateStart );\n\n\t\t\tvar element = scope.domElement === document ? scope.domElement.body : scope.domElement;\n\n\t\t\t// rotating across whole screen goes 360 degrees around\n\t\t\trotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );\n\n\t\t\t// rotating up and down along whole screen attempts to go 360, but limited to 180\n\t\t\trotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );\n\n\t\t\trotateStart.copy( rotateEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseMoveDolly( event ) {\n\n\t\t\t//console.log( 'handleMouseMoveDolly' );\n\n\t\t\tdollyEnd.set( event.clientX, event.clientY );\n\n\t\t\tdollyDelta.subVectors( dollyEnd, dollyStart );\n\n\t\t\tif ( dollyDelta.y > 0 ) {\n\n\t\t\t\tdollyIn( getZoomScale() );\n\n\t\t\t} else if ( dollyDelta.y < 0 ) {\n\n\t\t\t\tdollyOut( getZoomScale() );\n\n\t\t\t}\n\n\t\t\tdollyStart.copy( dollyEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseMovePan( event ) {\n\n\t\t\t//console.log( 'handleMouseMovePan' );\n\n\t\t\tpanEnd.set( event.clientX, event.clientY );\n\n\t\t\tpanDelta.subVectors( panEnd, panStart );\n\n\t\t\tpan( panDelta.x, panDelta.y );\n\n\t\t\tpanStart.copy( panEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleMouseUp( event ) {\n\n\t\t\t//console.log( 'handleMouseUp' );\n\n\t\t}\n\n\t\tfunction handleMouseWheel( event ) {\n\n\t\t\t//console.log( 'handleMouseWheel' );\n\n\t\t\tif ( event.deltaY < 0 ) {\n\n\t\t\t\tdollyOut( getZoomScale() );\n\n\t\t\t} else if ( event.deltaY > 0 ) {\n\n\t\t\t\tdollyIn( getZoomScale() );\n\n\t\t\t}\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleKeyDown( event ) {\n\n\t\t\t//console.log( 'handleKeyDown' );\n\n\t\t\tswitch ( event.keyCode ) {\n\n\t\t\t\tcase scope.keys.UP:\n\t\t\t\t\tpan( 0, scope.keyPanSpeed );\n\t\t\t\t\tscope.update();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.BOTTOM:\n\t\t\t\t\tpan( 0, - scope.keyPanSpeed );\n\t\t\t\t\tscope.update();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.LEFT:\n\t\t\t\t\tpan( scope.keyPanSpeed, 0 );\n\t\t\t\t\tscope.update();\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase scope.keys.RIGHT:\n\t\t\t\t\tpan( - scope.keyPanSpeed, 0 );\n\t\t\t\t\tscope.update();\n\t\t\t\t\tbreak;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction handleTouchStartRotate( event ) {\n\n\t\t\t//console.log( 'handleTouchStartRotate' );\n\n\t\t\trotateStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );\n\n\t\t}\n\n\t\tfunction handleTouchStartDolly( event ) {\n\n\t\t\t//console.log( 'handleTouchStartDolly' );\n\n\t\t\tvar dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;\n\t\t\tvar dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;\n\n\t\t\tvar distance = Math.sqrt( dx * dx + dy * dy );\n\n\t\t\tdollyStart.set( 0, distance );\n\n\t\t}\n\n\t\tfunction handleTouchStartPan( event ) {\n\n\t\t\t//console.log( 'handleTouchStartPan' );\n\n\t\t\tpanStart.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );\n\n\t\t}\n\n\t\tfunction handleTouchMoveRotate( event ) {\n\n\t\t\t//console.log( 'handleTouchMoveRotate' );\n\n\t\t\trotateEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );\n\t\t\trotateDelta.subVectors( rotateEnd, rotateStart );\n\n\t\t\tvar element = scope.domElement === document ? scope.domElement.body : scope.domElement;\n\n\t\t\t// rotating across whole screen goes 360 degrees around\n\t\t\trotateLeft( 2 * Math.PI * rotateDelta.x / element.clientWidth * scope.rotateSpeed );\n\n\t\t\t// rotating up and down along whole screen attempts to go 360, but limited to 180\n\t\t\trotateUp( 2 * Math.PI * rotateDelta.y / element.clientHeight * scope.rotateSpeed );\n\n\t\t\trotateStart.copy( rotateEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleTouchMoveDolly( event ) {\n\n\t\t\t//console.log( 'handleTouchMoveDolly' );\n\n\t\t\tvar dx = event.touches[ 0 ].pageX - event.touches[ 1 ].pageX;\n\t\t\tvar dy = event.touches[ 0 ].pageY - event.touches[ 1 ].pageY;\n\n\t\t\tvar distance = Math.sqrt( dx * dx + dy * dy );\n\n\t\t\tdollyEnd.set( 0, distance );\n\n\t\t\tdollyDelta.subVectors( dollyEnd, dollyStart );\n\n\t\t\tif ( dollyDelta.y > 0 ) {\n\n\t\t\t\tdollyOut( getZoomScale() );\n\n\t\t\t} else if ( dollyDelta.y < 0 ) {\n\n\t\t\t\tdollyIn( getZoomScale() );\n\n\t\t\t}\n\n\t\t\tdollyStart.copy( dollyEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleTouchMovePan( event ) {\n\n\t\t\t//console.log( 'handleTouchMovePan' );\n\n\t\t\tpanEnd.set( event.touches[ 0 ].pageX, event.touches[ 0 ].pageY );\n\n\t\t\tpanDelta.subVectors( panEnd, panStart );\n\n\t\t\tpan( panDelta.x, panDelta.y );\n\n\t\t\tpanStart.copy( panEnd );\n\n\t\t\tscope.update();\n\n\t\t}\n\n\t\tfunction handleTouchEnd( event ) {\n\n\t\t\t//console.log( 'handleTouchEnd' );\n\n\t\t}\n\n\t\t//\n\t\t// event handlers - FSM: listen for events and reset state\n\t\t//\n\n\t\tfunction onMouseDown( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tevent.preventDefault();\n\n\t\t\tif ( event.button === scope.mouseButtons.ORBIT ) {\n\n\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\thandleMouseDownRotate( event );\n\n\t\t\t\tstate = STATE.ROTATE;\n\n\t\t\t} else if ( event.button === scope.mouseButtons.ZOOM ) {\n\n\t\t\t\tif ( scope.enableZoom === false ) return;\n\n\t\t\t\thandleMouseDownDolly( event );\n\n\t\t\t\tstate = STATE.DOLLY;\n\n\t\t\t} else if ( event.button === scope.mouseButtons.PAN ) {\n\n\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\thandleMouseDownPan( event );\n\n\t\t\t\tstate = STATE.PAN;\n\n\t\t\t}\n\n\t\t\tif ( state !== STATE.NONE ) {\n\n\t\t\t\tdocument.addEventListener( 'mousemove', onMouseMove, false );\n\t\t\t\tdocument.addEventListener( 'mouseup', onMouseUp, false );\n\n\t\t\t\tscope.dispatchEvent( startEvent );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onMouseMove( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tevent.preventDefault();\n\n\t\t\tif ( state === STATE.ROTATE ) {\n\n\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\thandleMouseMoveRotate( event );\n\n\t\t\t} else if ( state === STATE.DOLLY ) {\n\n\t\t\t\tif ( scope.enableZoom === false ) return;\n\n\t\t\t\thandleMouseMoveDolly( event );\n\n\t\t\t} else if ( state === STATE.PAN ) {\n\n\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\thandleMouseMovePan( event );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onMouseUp( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\thandleMouseUp( event );\n\n\t\t\tdocument.removeEventListener( 'mousemove', onMouseMove, false );\n\t\t\tdocument.removeEventListener( 'mouseup', onMouseUp, false );\n\n\t\t\tscope.dispatchEvent( endEvent );\n\n\t\t\tstate = STATE.NONE;\n\n\t\t}\n\n\t\tfunction onMouseWheel( event ) {\n\n\t\t\tif ( scope.enabled === false || scope.enableZoom === false || ( state !== STATE.NONE && state !== STATE.ROTATE ) ) return;\n\n\t\t\tevent.preventDefault();\n\t\t\tevent.stopPropagation();\n\n\t\t\thandleMouseWheel( event );\n\n\t\t\tscope.dispatchEvent( startEvent ); // not sure why these are here...\n\t\t\tscope.dispatchEvent( endEvent );\n\n\t\t}\n\n\t\tfunction onKeyDown( event ) {\n\n\t\t\tif ( scope.enabled === false || scope.enableKeys === false || scope.enablePan === false ) return;\n\n\t\t\thandleKeyDown( event );\n\n\t\t}\n\n\t\tfunction onTouchStart( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tswitch ( event.touches.length ) {\n\n\t\t\t\tcase 1:\t// one-fingered touch: rotate\n\n\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\n\t\t\t\t\thandleTouchStartRotate( event );\n\n\t\t\t\t\tstate = STATE.TOUCH_ROTATE;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 2:\t// two-fingered touch: dolly\n\n\t\t\t\t\tif ( scope.enableZoom === false ) return;\n\n\t\t\t\t\thandleTouchStartDolly( event );\n\n\t\t\t\t\tstate = STATE.TOUCH_DOLLY;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 3: // three-fingered touch: pan\n\n\t\t\t\t\tif ( scope.enablePan === false ) return;\n\n\t\t\t\t\thandleTouchStartPan( event );\n\n\t\t\t\t\tstate = STATE.TOUCH_PAN;\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t}\n\n\t\t\tif ( state !== STATE.NONE ) {\n\n\t\t\t\tscope.dispatchEvent( startEvent );\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onTouchMove( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\tevent.preventDefault();\n\t\t\tevent.stopPropagation();\n\n\t\t\tswitch ( event.touches.length ) {\n\n\t\t\t\tcase 1: // one-fingered touch: rotate\n\n\t\t\t\t\tif ( scope.enableRotate === false ) return;\n\t\t\t\t\tif ( state !== STATE.TOUCH_ROTATE ) return; // is this needed?...\n\n\t\t\t\t\thandleTouchMoveRotate( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 2: // two-fingered touch: dolly\n\n\t\t\t\t\tif ( scope.enableZoom === false ) return;\n\t\t\t\t\tif ( state !== STATE.TOUCH_DOLLY ) return; // is this needed?...\n\n\t\t\t\t\thandleTouchMoveDolly( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tcase 3: // three-fingered touch: pan\n\n\t\t\t\t\tif ( scope.enablePan === false ) return;\n\t\t\t\t\tif ( state !== STATE.TOUCH_PAN ) return; // is this needed?...\n\n\t\t\t\t\thandleTouchMovePan( event );\n\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\n\t\t\t\t\tstate = STATE.NONE;\n\n\t\t\t}\n\n\t\t}\n\n\t\tfunction onTouchEnd( event ) {\n\n\t\t\tif ( scope.enabled === false ) return;\n\n\t\t\thandleTouchEnd( event );\n\n\t\t\tscope.dispatchEvent( endEvent );\n\n\t\t\tstate = STATE.NONE;\n\n\t\t}\n\n\t\tfunction onContextMenu( event ) {\n\n\t\t\tevent.preventDefault();\n\n\t\t}\n\n\t\t//\n\n\t\tscope.domElement.addEventListener( 'contextmenu', onContextMenu, false );\n\n\t\tscope.domElement.addEventListener( 'mousedown', onMouseDown, false );\n\t\tscope.domElement.addEventListener( 'wheel', onMouseWheel, false );\n\n\t\tscope.domElement.addEventListener( 'touchstart', onTouchStart, false );\n\t\tscope.domElement.addEventListener( 'touchend', onTouchEnd, false );\n\t\tscope.domElement.addEventListener( 'touchmove', onTouchMove, false );\n\n\t\twindow.addEventListener( 'keydown', onKeyDown, false );\n\n\t\t// force an update at start\n\n\t\tthis.update();\n\n\t};\n\n\tOrbitControls.prototype = Object.create( THREE.EventDispatcher.prototype );\n\tOrbitControls.prototype.constructor = OrbitControls;\n\n\tObject.defineProperties( OrbitControls.prototype, {\n\n\t\tcenter: {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .center has been renamed to .target' );\n\t\t\t\treturn this.target;\n\n\t\t\t}\n\n\t\t},\n\n\t\t// backward compatibility\n\n\t\tnoZoom: {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' );\n\t\t\t\treturn ! this.enableZoom;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noZoom has been deprecated. Use .enableZoom instead.' );\n\t\t\t\tthis.enableZoom = ! value;\n\n\t\t\t}\n\n\t\t},\n\n\t\tnoRotate: {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' );\n\t\t\t\treturn ! this.enableRotate;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noRotate has been deprecated. Use .enableRotate instead.' );\n\t\t\t\tthis.enableRotate = ! value;\n\n\t\t\t}\n\n\t\t},\n\n\t\tnoPan: {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' );\n\t\t\t\treturn ! this.enablePan;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noPan has been deprecated. Use .enablePan instead.' );\n\t\t\t\tthis.enablePan = ! value;\n\n\t\t\t}\n\n\t\t},\n\n\t\tnoKeys: {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' );\n\t\t\t\treturn ! this.enableKeys;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .noKeys has been deprecated. Use .enableKeys instead.' );\n\t\t\t\tthis.enableKeys = ! value;\n\n\t\t\t}\n\n\t\t},\n\n\t\tstaticMoving : {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' );\n\t\t\t\treturn ! this.enableDamping;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .staticMoving has been deprecated. Use .enableDamping instead.' );\n\t\t\t\tthis.enableDamping = ! value;\n\n\t\t\t}\n\n\t\t},\n\n\t\tdynamicDampingFactor : {\n\n\t\t\tget: function () {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.' );\n\t\t\t\treturn this.dampingFactor;\n\n\t\t\t},\n\n\t\t\tset: function ( value ) {\n\n\t\t\t\tconsole.warn( 'THREE.OrbitControls: .dynamicDampingFactor has been renamed. Use .dampingFactor instead.' );\n\t\t\t\tthis.dampingFactor = value;\n\n\t\t\t}\n\n\t\t}\n\n\t} );\n\n\treturn OrbitControls;\n};\n\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/three-orbit-controls/index.js\n// module id = 7\n// module chunks = 0","/////////////////////////////////////\n// Marching cubes lookup tables\n/////////////////////////////////////\n\n// Got these tables from https://www.clicktorelease.com/code/bumpy-metaballs/\n// These tables are straight from Paul Bourke's page:\n// http://local.wasp.uwa.edu.au/~pbourke/geometry/polygonise/\n// who in turn got them from Cory Gene Bloyd.\n\nvar EDGE_TABLE = new Int32Array([\n 0x0, 0x109, 0x203, 0x30a, 0x406, 0x50f, 0x605, 0x70c,\n 0x80c, 0x905, 0xa0f, 0xb06, 0xc0a, 0xd03, 0xe09, 0xf00,\n 0x190, 0x99, 0x393, 0x29a, 0x596, 0x49f, 0x795, 0x69c,\n 0x99c, 0x895, 0xb9f, 0xa96, 0xd9a, 0xc93, 0xf99, 0xe90,\n 0x230, 0x339, 0x33, 0x13a, 0x636, 0x73f, 0x435, 0x53c,\n 0xa3c, 0xb35, 0x83f, 0x936, 0xe3a, 0xf33, 0xc39, 0xd30,\n 0x3a0, 0x2a9, 0x1a3, 0xaa, 0x7a6, 0x6af, 0x5a5, 0x4ac,\n 0xbac, 0xaa5, 0x9af, 0x8a6, 0xfaa, 0xea3, 0xda9, 0xca0,\n 0x460, 0x569, 0x663, 0x76a, 0x66, 0x16f, 0x265, 0x36c,\n 0xc6c, 0xd65, 0xe6f, 0xf66, 0x86a, 0x963, 0xa69, 0xb60,\n 0x5f0, 0x4f9, 0x7f3, 0x6fa, 0x1f6, 0xff, 0x3f5, 0x2fc,\n 0xdfc, 0xcf5, 0xfff, 0xef6, 0x9fa, 0x8f3, 0xbf9, 0xaf0,\n 0x650, 0x759, 0x453, 0x55a, 0x256, 0x35f, 0x55, 0x15c,\n 0xe5c, 0xf55, 0xc5f, 0xd56, 0xa5a, 0xb53, 0x859, 0x950,\n 0x7c0, 0x6c9, 0x5c3, 0x4ca, 0x3c6, 0x2cf, 0x1c5, 0xcc,\n 0xfcc, 0xec5, 0xdcf, 0xcc6, 0xbca, 0xac3, 0x9c9, 0x8c0,\n 0x8c0, 0x9c9, 0xac3, 0xbca, 0xcc6, 0xdcf, 0xec5, 0xfcc,\n 0xcc, 0x1c5, 0x2cf, 0x3c6, 0x4ca, 0x5c3, 0x6c9, 0x7c0,\n 0x950, 0x859, 0xb53, 0xa5a, 0xd56, 0xc5f, 0xf55, 0xe5c,\n 0x15c, 0x55, 0x35f, 0x256, 0x55a, 0x453, 0x759, 0x650,\n 0xaf0, 0xbf9, 0x8f3, 0x9fa, 0xef6, 0xfff, 0xcf5, 0xdfc,\n 0x2fc, 0x3f5, 0xff, 0x1f6, 0x6fa, 0x7f3, 0x4f9, 0x5f0,\n 0xb60, 0xa69, 0x963, 0x86a, 0xf66, 0xe6f, 0xd65, 0xc6c,\n 0x36c, 0x265, 0x16f, 0x66, 0x76a, 0x663, 0x569, 0x460,\n 0xca0, 0xda9, 0xea3, 0xfaa, 0x8a6, 0x9af, 0xaa5, 0xbac,\n 0x4ac, 0x5a5, 0x6af, 0x7a6, 0xaa, 0x1a3, 0x2a9, 0x3a0,\n 0xd30, 0xc39, 0xf33, 0xe3a, 0x936, 0x83f, 0xb35, 0xa3c,\n 0x53c, 0x435, 0x73f, 0x636, 0x13a, 0x33, 0x339, 0x230,\n 0xe90, 0xf99, 0xc93, 0xd9a, 0xa96, 0xb9f, 0x895, 0x99c,\n 0x69c, 0x795, 0x49f, 0x596, 0x29a, 0x393, 0x99, 0x190,\n 0xf00, 0xe09, 0xd03, 0xc0a, 0xb06, 0xa0f, 0x905, 0x80c,\n 0x70c, 0x605, 0x50f, 0x406, 0x30a, 0x203, 0x109, 0x0\n])\n\nvar TRI_TABLE = new Int32Array([\n -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 1, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 8, 3, 9, 8, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 2, 10, 0, 2, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 2, 8, 3, 2, 10, 8, 10, 9, 8, -1, -1, -1, -1, -1, -1, -1,\n 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 11, 2, 8, 11, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 9, 0, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 11, 2, 1, 9, 11, 9, 8, 11, -1, -1, -1, -1, -1, -1, -1,\n 3, 10, 1, 11, 10, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 10, 1, 0, 8, 10, 8, 11, 10, -1, -1, -1, -1, -1, -1, -1,\n 3, 9, 0, 3, 11, 9, 11, 10, 9, -1, -1, -1, -1, -1, -1, -1,\n 9, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 3, 0, 7, 3, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 1, 9, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 1, 9, 4, 7, 1, 7, 3, 1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 4, 7, 3, 0, 4, 1, 2, 10, -1, -1, -1, -1, -1, -1, -1,\n 9, 2, 10, 9, 0, 2, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1,\n 2, 10, 9, 2, 9, 7, 2, 7, 3, 7, 9, 4, -1, -1, -1, -1,\n 8, 4, 7, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 11, 4, 7, 11, 2, 4, 2, 0, 4, -1, -1, -1, -1, -1, -1, -1,\n 9, 0, 1, 8, 4, 7, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1,\n 4, 7, 11, 9, 4, 11, 9, 11, 2, 9, 2, 1, -1, -1, -1, -1,\n 3, 10, 1, 3, 11, 10, 7, 8, 4, -1, -1, -1, -1, -1, -1, -1,\n 1, 11, 10, 1, 4, 11, 1, 0, 4, 7, 11, 4, -1, -1, -1, -1,\n 4, 7, 8, 9, 0, 11, 9, 11, 10, 11, 0, 3, -1, -1, -1, -1,\n 4, 7, 11, 4, 11, 9, 9, 11, 10, -1, -1, -1, -1, -1, -1, -1,\n 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 5, 4, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 5, 4, 1, 5, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 8, 5, 4, 8, 3, 5, 3, 1, 5, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 0, 8, 1, 2, 10, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1,\n 5, 2, 10, 5, 4, 2, 4, 0, 2, -1, -1, -1, -1, -1, -1, -1,\n 2, 10, 5, 3, 2, 5, 3, 5, 4, 3, 4, 8, -1, -1, -1, -1,\n 9, 5, 4, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 11, 2, 0, 8, 11, 4, 9, 5, -1, -1, -1, -1, -1, -1, -1,\n 0, 5, 4, 0, 1, 5, 2, 3, 11, -1, -1, -1, -1, -1, -1, -1,\n 2, 1, 5, 2, 5, 8, 2, 8, 11, 4, 8, 5, -1, -1, -1, -1,\n 10, 3, 11, 10, 1, 3, 9, 5, 4, -1, -1, -1, -1, -1, -1, -1,\n 4, 9, 5, 0, 8, 1, 8, 10, 1, 8, 11, 10, -1, -1, -1, -1,\n 5, 4, 0, 5, 0, 11, 5, 11, 10, 11, 0, 3, -1, -1, -1, -1,\n 5, 4, 8, 5, 8, 10, 10, 8, 11, -1, -1, -1, -1, -1, -1, -1,\n 9, 7, 8, 5, 7, 9, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 3, 0, 9, 5, 3, 5, 7, 3, -1, -1, -1, -1, -1, -1, -1,\n 0, 7, 8, 0, 1, 7, 1, 5, 7, -1, -1, -1, -1, -1, -1, -1,\n 1, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 7, 8, 9, 5, 7, 10, 1, 2, -1, -1, -1, -1, -1, -1, -1,\n 10, 1, 2, 9, 5, 0, 5, 3, 0, 5, 7, 3, -1, -1, -1, -1,\n 8, 0, 2, 8, 2, 5, 8, 5, 7, 10, 5, 2, -1, -1, -1, -1,\n 2, 10, 5, 2, 5, 3, 3, 5, 7, -1, -1, -1, -1, -1, -1, -1,\n 7, 9, 5, 7, 8, 9, 3, 11, 2, -1, -1, -1, -1, -1, -1, -1,\n 9, 5, 7, 9, 7, 2, 9, 2, 0, 2, 7, 11, -1, -1, -1, -1,\n 2, 3, 11, 0, 1, 8, 1, 7, 8, 1, 5, 7, -1, -1, -1, -1,\n 11, 2, 1, 11, 1, 7, 7, 1, 5, -1, -1, -1, -1, -1, -1, -1,\n 9, 5, 8, 8, 5, 7, 10, 1, 3, 10, 3, 11, -1, -1, -1, -1,\n 5, 7, 0, 5, 0, 9, 7, 11, 0, 1, 0, 10, 11, 10, 0, -1,\n 11, 10, 0, 11, 0, 3, 10, 5, 0, 8, 0, 7, 5, 7, 0, -1,\n 11, 10, 5, 7, 11, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 0, 1, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 8, 3, 1, 9, 8, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1,\n 1, 6, 5, 2, 6, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 6, 5, 1, 2, 6, 3, 0, 8, -1, -1, -1, -1, -1, -1, -1,\n 9, 6, 5, 9, 0, 6, 0, 2, 6, -1, -1, -1, -1, -1, -1, -1,\n 5, 9, 8, 5, 8, 2, 5, 2, 6, 3, 2, 8, -1, -1, -1, -1,\n 2, 3, 11, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 11, 0, 8, 11, 2, 0, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1,\n 0, 1, 9, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1, -1, -1, -1,\n 5, 10, 6, 1, 9, 2, 9, 11, 2, 9, 8, 11, -1, -1, -1, -1,\n 6, 3, 11, 6, 5, 3, 5, 1, 3, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 11, 0, 11, 5, 0, 5, 1, 5, 11, 6, -1, -1, -1, -1,\n 3, 11, 6, 0, 3, 6, 0, 6, 5, 0, 5, 9, -1, -1, -1, -1,\n 6, 5, 9, 6, 9, 11, 11, 9, 8, -1, -1, -1, -1, -1, -1, -1,\n 5, 10, 6, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 3, 0, 4, 7, 3, 6, 5, 10, -1, -1, -1, -1, -1, -1, -1,\n 1, 9, 0, 5, 10, 6, 8, 4, 7, -1, -1, -1, -1, -1, -1, -1,\n 10, 6, 5, 1, 9, 7, 1, 7, 3, 7, 9, 4, -1, -1, -1, -1,\n 6, 1, 2, 6, 5, 1, 4, 7, 8, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 5, 5, 2, 6, 3, 0, 4, 3, 4, 7, -1, -1, -1, -1,\n 8, 4, 7, 9, 0, 5, 0, 6, 5, 0, 2, 6, -1, -1, -1, -1,\n 7, 3, 9, 7, 9, 4, 3, 2, 9, 5, 9, 6, 2, 6, 9, -1,\n 3, 11, 2, 7, 8, 4, 10, 6, 5, -1, -1, -1, -1, -1, -1, -1,\n 5, 10, 6, 4, 7, 2, 4, 2, 0, 2, 7, 11, -1, -1, -1, -1,\n 0, 1, 9, 4, 7, 8, 2, 3, 11, 5, 10, 6, -1, -1, -1, -1,\n 9, 2, 1, 9, 11, 2, 9, 4, 11, 7, 11, 4, 5, 10, 6, -1,\n 8, 4, 7, 3, 11, 5, 3, 5, 1, 5, 11, 6, -1, -1, -1, -1,\n 5, 1, 11, 5, 11, 6, 1, 0, 11, 7, 11, 4, 0, 4, 11, -1,\n 0, 5, 9, 0, 6, 5, 0, 3, 6, 11, 6, 3, 8, 4, 7, -1,\n 6, 5, 9, 6, 9, 11, 4, 7, 9, 7, 11, 9, -1, -1, -1, -1,\n 10, 4, 9, 6, 4, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 10, 6, 4, 9, 10, 0, 8, 3, -1, -1, -1, -1, -1, -1, -1,\n 10, 0, 1, 10, 6, 0, 6, 4, 0, -1, -1, -1, -1, -1, -1, -1,\n 8, 3, 1, 8, 1, 6, 8, 6, 4, 6, 1, 10, -1, -1, -1, -1,\n 1, 4, 9, 1, 2, 4, 2, 6, 4, -1, -1, -1, -1, -1, -1, -1,\n 3, 0, 8, 1, 2, 9, 2, 4, 9, 2, 6, 4, -1, -1, -1, -1,\n 0, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 8, 3, 2, 8, 2, 4, 4, 2, 6, -1, -1, -1, -1, -1, -1, -1,\n 10, 4, 9, 10, 6, 4, 11, 2, 3, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 2, 2, 8, 11, 4, 9, 10, 4, 10, 6, -1, -1, -1, -1,\n 3, 11, 2, 0, 1, 6, 0, 6, 4, 6, 1, 10, -1, -1, -1, -1,\n 6, 4, 1, 6, 1, 10, 4, 8, 1, 2, 1, 11, 8, 11, 1, -1,\n 9, 6, 4, 9, 3, 6, 9, 1, 3, 11, 6, 3, -1, -1, -1, -1,\n 8, 11, 1, 8, 1, 0, 11, 6, 1, 9, 1, 4, 6, 4, 1, -1,\n 3, 11, 6, 3, 6, 0, 0, 6, 4, -1, -1, -1, -1, -1, -1, -1,\n 6, 4, 8, 11, 6, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 7, 10, 6, 7, 8, 10, 8, 9, 10, -1, -1, -1, -1, -1, -1, -1,\n 0, 7, 3, 0, 10, 7, 0, 9, 10, 6, 7, 10, -1, -1, -1, -1,\n 10, 6, 7, 1, 10, 7, 1, 7, 8, 1, 8, 0, -1, -1, -1, -1,\n 10, 6, 7, 10, 7, 1, 1, 7, 3, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 6, 1, 6, 8, 1, 8, 9, 8, 6, 7, -1, -1, -1, -1,\n 2, 6, 9, 2, 9, 1, 6, 7, 9, 0, 9, 3, 7, 3, 9, -1,\n 7, 8, 0, 7, 0, 6, 6, 0, 2, -1, -1, -1, -1, -1, -1, -1,\n 7, 3, 2, 6, 7, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 2, 3, 11, 10, 6, 8, 10, 8, 9, 8, 6, 7, -1, -1, -1, -1,\n 2, 0, 7, 2, 7, 11, 0, 9, 7, 6, 7, 10, 9, 10, 7, -1,\n 1, 8, 0, 1, 7, 8, 1, 10, 7, 6, 7, 10, 2, 3, 11, -1,\n 11, 2, 1, 11, 1, 7, 10, 6, 1, 6, 7, 1, -1, -1, -1, -1,\n 8, 9, 6, 8, 6, 7, 9, 1, 6, 11, 6, 3, 1, 3, 6, -1,\n 0, 9, 1, 11, 6, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 7, 8, 0, 7, 0, 6, 3, 11, 0, 11, 6, 0, -1, -1, -1, -1,\n 7, 11, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 0, 8, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 1, 9, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 8, 1, 9, 8, 3, 1, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1,\n 10, 1, 2, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, 3, 0, 8, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1,\n 2, 9, 0, 2, 10, 9, 6, 11, 7, -1, -1, -1, -1, -1, -1, -1,\n 6, 11, 7, 2, 10, 3, 10, 8, 3, 10, 9, 8, -1, -1, -1, -1,\n 7, 2, 3, 6, 2, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 7, 0, 8, 7, 6, 0, 6, 2, 0, -1, -1, -1, -1, -1, -1, -1,\n 2, 7, 6, 2, 3, 7, 0, 1, 9, -1, -1, -1, -1, -1, -1, -1,\n 1, 6, 2, 1, 8, 6, 1, 9, 8, 8, 7, 6, -1, -1, -1, -1,\n 10, 7, 6, 10, 1, 7, 1, 3, 7, -1, -1, -1, -1, -1, -1, -1,\n 10, 7, 6, 1, 7, 10, 1, 8, 7, 1, 0, 8, -1, -1, -1, -1,\n 0, 3, 7, 0, 7, 10, 0, 10, 9, 6, 10, 7, -1, -1, -1, -1,\n 7, 6, 10, 7, 10, 8, 8, 10, 9, -1, -1, -1, -1, -1, -1, -1,\n 6, 8, 4, 11, 8, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 6, 11, 3, 0, 6, 0, 4, 6, -1, -1, -1, -1, -1, -1, -1,\n 8, 6, 11, 8, 4, 6, 9, 0, 1, -1, -1, -1, -1, -1, -1, -1,\n 9, 4, 6, 9, 6, 3, 9, 3, 1, 11, 3, 6, -1, -1, -1, -1,\n 6, 8, 4, 6, 11, 8, 2, 10, 1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, 3, 0, 11, 0, 6, 11, 0, 4, 6, -1, -1, -1, -1,\n 4, 11, 8, 4, 6, 11, 0, 2, 9, 2, 10, 9, -1, -1, -1, -1,\n 10, 9, 3, 10, 3, 2, 9, 4, 3, 11, 3, 6, 4, 6, 3, -1,\n 8, 2, 3, 8, 4, 2, 4, 6, 2, -1, -1, -1, -1, -1, -1, -1,\n 0, 4, 2, 4, 6, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 9, 0, 2, 3, 4, 2, 4, 6, 4, 3, 8, -1, -1, -1, -1,\n 1, 9, 4, 1, 4, 2, 2, 4, 6, -1, -1, -1, -1, -1, -1, -1,\n 8, 1, 3, 8, 6, 1, 8, 4, 6, 6, 10, 1, -1, -1, -1, -1,\n 10, 1, 0, 10, 0, 6, 6, 0, 4, -1, -1, -1, -1, -1, -1, -1,\n 4, 6, 3, 4, 3, 8, 6, 10, 3, 0, 3, 9, 10, 9, 3, -1,\n 10, 9, 4, 6, 10, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 9, 5, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, 4, 9, 5, 11, 7, 6, -1, -1, -1, -1, -1, -1, -1,\n 5, 0, 1, 5, 4, 0, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1,\n 11, 7, 6, 8, 3, 4, 3, 5, 4, 3, 1, 5, -1, -1, -1, -1,\n 9, 5, 4, 10, 1, 2, 7, 6, 11, -1, -1, -1, -1, -1, -1, -1,\n 6, 11, 7, 1, 2, 10, 0, 8, 3, 4, 9, 5, -1, -1, -1, -1,\n 7, 6, 11, 5, 4, 10, 4, 2, 10, 4, 0, 2, -1, -1, -1, -1,\n 3, 4, 8, 3, 5, 4, 3, 2, 5, 10, 5, 2, 11, 7, 6, -1,\n 7, 2, 3, 7, 6, 2, 5, 4, 9, -1, -1, -1, -1, -1, -1, -1,\n 9, 5, 4, 0, 8, 6, 0, 6, 2, 6, 8, 7, -1, -1, -1, -1,\n 3, 6, 2, 3, 7, 6, 1, 5, 0, 5, 4, 0, -1, -1, -1, -1,\n 6, 2, 8, 6, 8, 7, 2, 1, 8, 4, 8, 5, 1, 5, 8, -1,\n 9, 5, 4, 10, 1, 6, 1, 7, 6, 1, 3, 7, -1, -1, -1, -1,\n 1, 6, 10, 1, 7, 6, 1, 0, 7, 8, 7, 0, 9, 5, 4, -1,\n 4, 0, 10, 4, 10, 5, 0, 3, 10, 6, 10, 7, 3, 7, 10, -1,\n 7, 6, 10, 7, 10, 8, 5, 4, 10, 4, 8, 10, -1, -1, -1, -1,\n 6, 9, 5, 6, 11, 9, 11, 8, 9, -1, -1, -1, -1, -1, -1, -1,\n 3, 6, 11, 0, 6, 3, 0, 5, 6, 0, 9, 5, -1, -1, -1, -1,\n 0, 11, 8, 0, 5, 11, 0, 1, 5, 5, 6, 11, -1, -1, -1, -1,\n 6, 11, 3, 6, 3, 5, 5, 3, 1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 10, 9, 5, 11, 9, 11, 8, 11, 5, 6, -1, -1, -1, -1,\n 0, 11, 3, 0, 6, 11, 0, 9, 6, 5, 6, 9, 1, 2, 10, -1,\n 11, 8, 5, 11, 5, 6, 8, 0, 5, 10, 5, 2, 0, 2, 5, -1,\n 6, 11, 3, 6, 3, 5, 2, 10, 3, 10, 5, 3, -1, -1, -1, -1,\n 5, 8, 9, 5, 2, 8, 5, 6, 2, 3, 8, 2, -1, -1, -1, -1,\n 9, 5, 6, 9, 6, 0, 0, 6, 2, -1, -1, -1, -1, -1, -1, -1,\n 1, 5, 8, 1, 8, 0, 5, 6, 8, 3, 8, 2, 6, 2, 8, -1,\n 1, 5, 6, 2, 1, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 3, 6, 1, 6, 10, 3, 8, 6, 5, 6, 9, 8, 9, 6, -1,\n 10, 1, 0, 10, 0, 6, 9, 5, 0, 5, 6, 0, -1, -1, -1, -1,\n 0, 3, 8, 5, 6, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 10, 5, 6, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 11, 5, 10, 7, 5, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 11, 5, 10, 11, 7, 5, 8, 3, 0, -1, -1, -1, -1, -1, -1, -1,\n 5, 11, 7, 5, 10, 11, 1, 9, 0, -1, -1, -1, -1, -1, -1, -1,\n 10, 7, 5, 10, 11, 7, 9, 8, 1, 8, 3, 1, -1, -1, -1, -1,\n 11, 1, 2, 11, 7, 1, 7, 5, 1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, 1, 2, 7, 1, 7, 5, 7, 2, 11, -1, -1, -1, -1,\n 9, 7, 5, 9, 2, 7, 9, 0, 2, 2, 11, 7, -1, -1, -1, -1,\n 7, 5, 2, 7, 2, 11, 5, 9, 2, 3, 2, 8, 9, 8, 2, -1,\n 2, 5, 10, 2, 3, 5, 3, 7, 5, -1, -1, -1, -1, -1, -1, -1,\n 8, 2, 0, 8, 5, 2, 8, 7, 5, 10, 2, 5, -1, -1, -1, -1,\n 9, 0, 1, 5, 10, 3, 5, 3, 7, 3, 10, 2, -1, -1, -1, -1,\n 9, 8, 2, 9, 2, 1, 8, 7, 2, 10, 2, 5, 7, 5, 2, -1,\n 1, 3, 5, 3, 7, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 7, 0, 7, 1, 1, 7, 5, -1, -1, -1, -1, -1, -1, -1,\n 9, 0, 3, 9, 3, 5, 5, 3, 7, -1, -1, -1, -1, -1, -1, -1,\n 9, 8, 7, 5, 9, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 5, 8, 4, 5, 10, 8, 10, 11, 8, -1, -1, -1, -1, -1, -1, -1,\n 5, 0, 4, 5, 11, 0, 5, 10, 11, 11, 3, 0, -1, -1, -1, -1,\n 0, 1, 9, 8, 4, 10, 8, 10, 11, 10, 4, 5, -1, -1, -1, -1,\n 10, 11, 4, 10, 4, 5, 11, 3, 4, 9, 4, 1, 3, 1, 4, -1,\n 2, 5, 1, 2, 8, 5, 2, 11, 8, 4, 5, 8, -1, -1, -1, -1,\n 0, 4, 11, 0, 11, 3, 4, 5, 11, 2, 11, 1, 5, 1, 11, -1,\n 0, 2, 5, 0, 5, 9, 2, 11, 5, 4, 5, 8, 11, 8, 5, -1,\n 9, 4, 5, 2, 11, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 2, 5, 10, 3, 5, 2, 3, 4, 5, 3, 8, 4, -1, -1, -1, -1,\n 5, 10, 2, 5, 2, 4, 4, 2, 0, -1, -1, -1, -1, -1, -1, -1,\n 3, 10, 2, 3, 5, 10, 3, 8, 5, 4, 5, 8, 0, 1, 9, -1,\n 5, 10, 2, 5, 2, 4, 1, 9, 2, 9, 4, 2, -1, -1, -1, -1,\n 8, 4, 5, 8, 5, 3, 3, 5, 1, -1, -1, -1, -1, -1, -1, -1,\n 0, 4, 5, 1, 0, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 8, 4, 5, 8, 5, 3, 9, 0, 5, 0, 3, 5, -1, -1, -1, -1,\n 9, 4, 5, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 11, 7, 4, 9, 11, 9, 10, 11, -1, -1, -1, -1, -1, -1, -1,\n 0, 8, 3, 4, 9, 7, 9, 11, 7, 9, 10, 11, -1, -1, -1, -1,\n 1, 10, 11, 1, 11, 4, 1, 4, 0, 7, 4, 11, -1, -1, -1, -1,\n 3, 1, 4, 3, 4, 8, 1, 10, 4, 7, 4, 11, 10, 11, 4, -1,\n 4, 11, 7, 9, 11, 4, 9, 2, 11, 9, 1, 2, -1, -1, -1, -1,\n 9, 7, 4, 9, 11, 7, 9, 1, 11, 2, 11, 1, 0, 8, 3, -1,\n 11, 7, 4, 11, 4, 2, 2, 4, 0, -1, -1, -1, -1, -1, -1, -1,\n 11, 7, 4, 11, 4, 2, 8, 3, 4, 3, 2, 4, -1, -1, -1, -1,\n 2, 9, 10, 2, 7, 9, 2, 3, 7, 7, 4, 9, -1, -1, -1, -1,\n 9, 10, 7, 9, 7, 4, 10, 2, 7, 8, 7, 0, 2, 0, 7, -1,\n 3, 7, 10, 3, 10, 2, 7, 4, 10, 1, 10, 0, 4, 0, 10, -1,\n 1, 10, 2, 8, 7, 4, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 9, 1, 4, 1, 7, 7, 1, 3, -1, -1, -1, -1, -1, -1, -1,\n 4, 9, 1, 4, 1, 7, 0, 8, 1, 8, 7, 1, -1, -1, -1, -1,\n 4, 0, 3, 7, 4, 3, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 4, 8, 7, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 9, 10, 8, 10, 11, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 0, 9, 3, 9, 11, 11, 9, 10, -1, -1, -1, -1, -1, -1, -1,\n 0, 1, 10, 0, 10, 8, 8, 10, 11, -1, -1, -1, -1, -1, -1, -1,\n 3, 1, 10, 11, 3, 10, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 2, 11, 1, 11, 9, 9, 11, 8, -1, -1, -1, -1, -1, -1, -1,\n 3, 0, 9, 3, 9, 11, 1, 2, 9, 2, 11, 9, -1, -1, -1, -1,\n 0, 2, 11, 8, 0, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 3, 2, 11, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 2, 3, 8, 2, 8, 10, 10, 8, 9, -1, -1, -1, -1, -1, -1, -1,\n 9, 10, 2, 0, 9, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 2, 3, 8, 2, 8, 10, 0, 1, 8, 1, 10, 8, -1, -1, -1, -1,\n 1, 10, 2, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 1, 3, 8, 9, 1, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 9, 1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\n 0, 3, 8, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1\n]);\n\nexport default {\n EDGE_TABLE: EDGE_TABLE,\n TRI_TABLE: TRI_TABLE\n}\n\n\n// WEBPACK FOOTER //\n// ./src/marching_cube_LUT.js","const THREE = require('three');\n\nimport Metaball from './metaball.js';\nimport InspectPoint from './inspect_point.js'\nimport LUT from './marching_cube_LUT.js';\nvar VISUAL_DEBUG = true;\nconst E = 1e-5;\n\nconst LAMBERT_WHITE = new THREE.MeshLambertMaterial({ color: 0xeeeeee });\nconst LAMBERT_GREEN = new THREE.MeshBasicMaterial( { color: 0x00ee00, transparent: true, opacity: 0.5 });\nconst WIREFRAME_MAT = new THREE.LineBasicMaterial( { color: 0xffffff, linewidth: 10 } );\n\nconst STD_UNIFORMS = (obj) => {\n return Object.assign({\n u_albedo: {\n type: 'vec3',\n value: new THREE.Color(0xFF0000)\n },\n u_ambient: {\n type: 'v3',\n value: new THREE.Color(0xFFFFFF)\n },\n u_lightCol: {\n type: 'v3',\n value: new THREE.Color(0xFFFFFF)\n },\n u_lightPos: {\n type: 'v3',\n value: new THREE.Vector3(5, 10, 10)\n },\n u_lightIntensity: {\n type: 'f',\n value: 0.1\n },\n u_viewPos: {\n type: 'v3',\n value: window.viewPos\n }\n }, obj);\n};\n\nexport default class MarchingCubes {\n\n constructor(App) { \n this.init(App);\n }\n\n init(App) {\n this.isPaused = false; \n VISUAL_DEBUG = App.config.visualDebug;\n\n // Initializing member variables.\n // Additional variables are used for fast computation.\n this.origin = new THREE.Vector3(0);\n\n this.isolevel = App.config.isolevel;\n this.minRadius = App.config.minRadius;\n this.maxRadius = App.config.maxRadius;\n\n this.gridCellWidth = App.config.gridCellWidth;\n this.halfCellWidth = App.config.gridCellWidth / 2.0;\n this.gridWidth = App.config.gridWidth;\n\n this.res = App.config.gridRes;\n this.res2 = App.config.gridRes * App.config.gridRes;\n this.res3 = App.config.gridRes * App.config.gridRes * App.config.gridRes;\n\n this.maxSpeed = App.config.maxSpeed;\n this.numMetaballs = App.config.numMetaballs;\n\n this.camera = App.camera;\n this.scene = App.scene;\n\n this.voxels = [];\n this.labels = [];\n this.balls = [];\n\n this.showSpheres = true;\n this.showGrid = true;\n\n if (App.config.material) {\n this.material = new THREE.MeshPhongMaterial({ color: 0xff6a1d});\n } else {\n this.material = App.config.material;\n }\n\n this.setupCells();\n this.setupMetaballs();\n this.makeMesh();\n };\n\n // Convert from 1D index to 3D indices\n i1toi3(i1) {\n\n // [i % w, i % (h * w)) / w, i / (h * w)]\n\n // @note: ~~ is a fast substitute for Math.floor()\n return [\n i1 % this.res,\n ~~ ((i1 % this.res2) / this.res),\n ~~ (i1 / this.res2)\n ];\n };\n\n // Convert from 3D indices to 1 1D\n i3toi1(i3x, i3y, i3z) {\n\n // [x + y * w + z * w * h]\n\n return i3x + i3y * this.res + i3z * this.res2;\n };\n\n // Convert from 3D indices to 3D positions\n i3toPos(i3) {\n\n return new THREE.Vector3(\n i3[0] * this.gridCellWidth + this.origin.x + this.halfCellWidth,\n i3[1] * this.gridCellWidth + this.origin.y + this.halfCellWidth,\n i3[2] * this.gridCellWidth + this.origin.z + this.halfCellWidth\n );\n };\n\n setupCells() {\n\n // Allocate voxels based on our grid resolution\n this.voxels = [];\n for (var i = 0; i < this.res3; i++) {\n var i3 = this.i1toi3(i);\n var {x, y, z} = this.i3toPos(i3);\n var voxel = new Voxel(new THREE.Vector3(x, y, z), this.gridCellWidth);\n this.voxels.push(voxel);\n\n if (VISUAL_DEBUG) {\n this.scene.add(voxel.wireframe);\n this.scene.add(voxel.mesh);\n }\n } \n }\n\n setupMetaballs() {\n\n this.balls = [];\n\n var x, y, z, vx, vy, vz, radius, pos, vel;\n var matLambertWhite = LAMBERT_WHITE;\n var maxRadiusTRippled = this.maxRadius * 3;\n var maxRadiusDoubled = this.maxRadius * 2;\n\n // Randomly generate metaballs with different sizes and velocities\n for (var i = 0; i < this.numMetaballs; i++) {\n x = this.gridWidth / 2; \n y = this.gridWidth / 2; \n z = this.gridWidth / 2; \n pos = new THREE.Vector3(x, y, z);\n \n vx = (Math.random() * 2 - 1) * this.maxSpeed;\n vy = (Math.random() * 2 - 1) * this.maxSpeed;\n vz = (Math.random() * 2 - 1) * this.maxSpeed;\n vel = new THREE.Vector3(vx, vy, vz);\n \n radius = Math.random() * (this.maxRadius - this.minRadius) + this.minRadius;\n \n var ball = new Metaball(pos, radius, vel, this.gridWidth, VISUAL_DEBUG);\n this.balls.push(ball);\n \n if (VISUAL_DEBUG) {\n this.scene.add(ball.mesh);\n }\n }\n }\n\n // This function samples a point from the metaball's density function\n // Implement a function that returns the value of the all metaballs influence to a given point.\n // Please follow the resources given in the write-up for details.\n sample(point) {\n var isovalue = 0.0;\n for (var i = 0; i < this.balls.length; i++) {\n isovalue += this.balls[i].radius2 / point.distanceToSquared(this.balls[i].pos);\n }\n return isovalue;\n }\n\n update() {\n\n if (this.isPaused) {\n return;\n }\n\n // This should move the metaballs\n this.balls.forEach(function(ball) {\n ball.update();\n });\n\n for (var c = 0; c < this.res3; c++) {\n\n // Sampling the center point\n this.voxels[c].center.isovalue = this.sample(this.voxels[c].center.pos);\n \n for (var i = 0; i < 8; i++) {\n this.voxels[c].corners[i].isovalue = this.sample(this.voxels[c].corners[i].pos);\n }\n\n // Visualizing grid\n if (VISUAL_DEBUG && this.showGrid) {\n \n // Toggle voxels on or off\n if (this.voxels[c].center.isovalue > this.isolevel) {\n this.voxels[c].show();\n } \n else {\n this.voxels[c].hide();\n }\n\n for (var i = 0; i < 8; i++) {\n this.voxels[c].corners[i].updateLabel(this.camera);\n }\n } \n\n else {\n\n for (var i = 0; i < 8; i++) {\n this.voxels[c].corners[i].clearLabel();\n }\n }\n }\n\n this.updateMesh();\n }\n\n pause() {\n this.isPaused = true;\n }\n\n play() {\n this.isPaused = false;\n }\n\n show() {\n for (var i = 0; i < this.res3; i++) {\n this.voxels[i].show();\n }\n this.showGrid = true;\n };\n\n hide() {\n for (var i = 0; i < this.res3; i++) {\n this.voxels[i].hide();\n }\n this.showGrid = false;\n };\n\n makeMesh() {\n this.mesh = new THREE.Mesh(new THREE.Geometry(), LAMBERT_GREEN);\n this.mesh.geometry.dynamic = true;\n this.scene.add(this.mesh);\n }\n\n updateMesh() {\n var newVertices = [];\n var newFaces = [];\n\n var faceIdx = 0;\n\n for (var i = 0; i < this.voxels.length; i++) {\n var poly = this.voxels[i].polygonize(this.isolevel, this.sample.bind(this));\n \n for (var j = 0; j < poly.vertexPositions.length; j+=3) {\n var vp = poly.vertexPositions;\n newVertices.push(vp[j], vp[j + 1], vp[j + 2]);\n var vn = poly.vertexNormals;\n var normals = [vn[j], vn[j + 1], vn[j + 2]];\n newFaces.push(new THREE.Face3(3 * faceIdx, 3 * faceIdx + 1, 3 * faceIdx + 2));\n faceIdx++;\n }\n \n }\n \n this.mesh.geometry.vertices = newVertices;\n this.mesh.geometry.faces = newFaces;\n\n this.mesh.geometry.verticesNeedUpdate = true;\n this.mesh.geometry.elementsNeedUpdate = true;\n\n this.mesh.geometry.computeFaceNormals();\n } \n};\n\n// ------------------------------------------- //\n\nclass Voxel {\n\n constructor(position, gridCellWidth) {\n this.init(position, gridCellWidth);\n }\n\n init(position, gridCellWidth) {\n this.pos = position;\n this.gridCellWidth = gridCellWidth;\n\n if (VISUAL_DEBUG) {\n this.makeMesh();\n }\n \n this.makeInspectPoints(); \n }\n\n makeMesh() {\n var halfGridCellWidth = this.gridCellWidth / 2.0;\n\n var positions = new Float32Array([\n // Front face\n halfGridCellWidth, halfGridCellWidth, halfGridCellWidth,\n halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth,\n -halfGridCellWidth, -halfGridCellWidth, halfGridCellWidth,\n -halfGridCellWidth, halfGridCellWidth, halfGridCellWidth,\n\n // Back face\n -halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth,\n -halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth,\n halfGridCellWidth, -halfGridCellWidth, -halfGridCellWidth,\n halfGridCellWidth, halfGridCellWidth, -halfGridCellWidth,\n ]);\n\n var indices = new Uint16Array([\n 0, 1, 2, 3,\n 4, 5, 6, 7,\n 0, 7, 7, 4,\n 4, 3, 3, 0,\n 1, 6, 6, 5,\n 5, 2, 2, 1\n ]);\n\n // Buffer geometry\n var geo = new THREE.BufferGeometry();\n geo.setIndex( new THREE.BufferAttribute( indices, 1 ) );\n geo.addAttribute( 'position', new THREE.BufferAttribute( positions, 3 ) );\n\n // Wireframe line segments\n this.wireframe = new THREE.LineSegments( geo, WIREFRAME_MAT );\n this.wireframe.position.set(this.pos.x, this.pos.y, this.pos.z);\n\n // Green cube\n geo = new THREE.BoxBufferGeometry(this.gridCellWidth, this.gridCellWidth, this.gridCellWidth);\n this.mesh = new THREE.Mesh( geo, LAMBERT_GREEN );\n this.mesh.position.set(this.pos.x, this.pos.y, this.pos.z);\n }\n\n makeInspectPoints() {\n var halfGridCellWidth = this.gridCellWidth / 2.0;\n var x = this.pos.x;\n var y = this.pos.y;\n var z = this.pos.z;\n var red = 0xff0000;\n\n // Center dot\n this.center = new InspectPoint(new THREE.Vector3(x, y, z), 0, VISUAL_DEBUG);\n\n this.corners = [];\n\n this.corners[0] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[1] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[2] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[3] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[4] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[5] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[6] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG);\n this.corners[7] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG);\n }\n\n show() {\n if (this.mesh) {\n this.mesh.visible = true;\n }\n if (this.wireframe) {\n this.wireframe.visible = true;\n }\n }\n\n hide() {\n if (this.mesh) {\n this.mesh.visible = false;\n }\n\n if (this.wireframe) {\n this.wireframe.visible = false;\n }\n\n if (this.center) {\n this.center.clearLabel();\n }\n }\n\n vertexInterpolation(isolevel, posA, posB) {\n var t = (isolevel - posA.isovalue) / (posB.isovalue - posA.isovalue);\n return new THREE.Vector3(\n posA.pos.x + t * (posB.pos.x - posA.pos.x), \n posA.pos.y + t * (posB.pos.y - posA.pos.y), \n posA.pos.z + t * (posB.pos.z - posA.pos.z));\n }\n\n polygonize(isolevel, sample) {\n\n var vertexPositions = [];\n var vertexNormals = [];\n\n var idx = 0;\n\n for (var i = 0; i < 8; i++) {\n if (this.corners[i].isovalue < isolevel) {\n idx |= Math.pow(2, i);\n }\n }\n\n if (LUT.EDGE_TABLE[idx] == 0) {\n return {\n vertexPositions,\n vertexNormals\n };\n }\n \n var vertexlist = [];\n for (var i = 0; i < 12; i++) {\n var c = i % 8;\n var n = c + 1;\n if (i < 8 && (i + 1) % 4 == 0)\n {\n n = c - 3;\n }\n if (i >= 8)\n {\n n = c + 4;\n }\n if (LUT.EDGE_TABLE[idx] & Math.pow(2, i)) {\n vertexlist[i] = this.vertexInterpolation(isolevel, this.corners[c], this.corners[n]);\n }\n }\n\n for (var i = 0; i < 16; i++) {\n var tri = LUT.TRI_TABLE[16 * idx + i];\n\n if (tri < 0) {\n break;\n }\n\n var pt = vertexlist[tri];\n var s = sample(pt);\n var delta = new THREE.Vector3(sample(new THREE.Vector3(E, 0, 0).add(pt)), \n sample(new THREE.Vector3(0, E, 0).add(pt)), \n sample(new THREE.Vector3(0, 0, E).add(pt)));\n var normal = delta.subScalar(s).normalize();\n\n vertexPositions.push(pt);\n vertexNormals.push(normal);\n }\n\n return {\n vertexPositions: vertexPositions,\n vertexNormals: vertexNormals\n };\n\n };\n}\n\n\n// WEBPACK FOOTER //\n// ./src/marching_cubes.js","const THREE = require('three')\n\nvar SPHERE_GEO = new THREE.SphereBufferGeometry(1, 16, 16);\nvar LAMBERT_WHITE = new THREE.MeshLambertMaterial( { color: 0x9EB3D8, transparent: true, opacity: 0.5 });\n\nexport default class Metaball {\n constructor(pos, radius, vel, gridWidth, visualDebug) {\n this.init(pos, radius, vel, gridWidth, visualDebug);\n }\n\n init(pos, radius, vel, gridWidth, visualDebug) {\n this.gridWidth = gridWidth;\n this.pos = pos;\n this.vel = vel;\n\n this.radius = radius;\n this.radius2 = radius * radius;\n this.mesh = null;\n\n if (visualDebug) { \n this.makeMesh();\n }\n }\n\n makeMesh() {\n this.mesh = new THREE.Mesh(SPHERE_GEO, LAMBERT_WHITE);\n this.mesh.position.set(this.pos.x, this.pos.y, this.pos.z);\n this.mesh.scale.set(this.radius, this.radius, this.radius);\n }\n\n show() {\n if (this.mesh) {\n this.mesh.visible = true;\n }\n };\n\n hide() {\n if (this.mesh) {\n this.mesh.visible = false;\n }\n };\n\n update() {\n \n var pos = new THREE.Vector3().addVectors(this.pos, this.vel);\n \n var min = 2 * this.radius;\n var max = this.gridWidth - min;\n \n if (pos.x > max || pos.x < min) {\n this.vel.x *= -1.0;\n }\n if (pos.y > max || pos.y < min) {\n this.vel.y *= -1.0;\n }\n if (pos.z > max || pos.z < min) {\n this.vel.z *= -1.0;\n }\n\n this.pos.add(this.vel);\n }\n}\n\n\n// WEBPACK FOOTER //\n// ./src/metaball.js","const THREE = require('three');\n\nconst POINT_MATERIAL = new THREE.PointsMaterial( { color: 0xee1111, size: 10, sizeAttenuation: true } );\n\nexport default class InspectPoint {\n\n constructor(pos, isovalue, visualDebug) {\n this.init(pos, isovalue, visualDebug);\n }\n\n init(pos, isovalue, visualDebug) {\n this.pos = pos;\n this.isovalue = isovalue;\n this.label = null;\n\n if (visualDebug) {\n this.makeLabel();\n }\n };\n\n // Create an HTML div for holding label\n makeLabel() {\n this.label = document.createElement('div');\n this.label.style.position = 'absolute';\n this.label.style.width = 100;\n this.label.style.height = 100;\n this.label.style.userSelect = 'none';\n this.label.style.cursor = 'default';\n this.label.style.fontSize = '0.3em';\n this.label.style.pointerEvents = 'none';\n document.body.appendChild(this.label); \n };\n\n updateLabel(camera) {\n if (this.label) {\n var screenPos = this.pos.clone().project(camera);\n screenPos.x = ( screenPos.x + 1 ) / 2 * window.innerWidth;;\n screenPos.y = - ( screenPos.y - 1 ) / 2 * window.innerHeight;;\n\n this.label.style.top = screenPos.y + 'px';\n this.label.style.left = screenPos.x + 'px';\n this.label.innerHTML = this.isovalue.toFixed(2);\n this.label.style.opacity = this.isovalue - 0.5; \n }\n };\n\n clearLabel() {\n if (this.label) {\n this.label.innerHTML = '';\n this.label.style.opacity = 0;\n }\n };\n}\n\n\n// WEBPACK FOOTER //\n// ./src/inspect_point.js","module.exports = __webpack_public_path__ + \"index.html\";\n\n\n//////////////////\n// WEBPACK FOOTER\n// ./~/file-loader?name=[name].[ext]!./index.html\n// module id = 12\n// module chunks = 0"],"sourceRoot":""} \ No newline at end of file diff --git a/build/index.html b/build/index.html new file mode 100644 index 0000000..0006574 --- /dev/null +++ b/build/index.html @@ -0,0 +1,19 @@ + + + + Project 6: Implicit Surfaces + + + + + + diff --git a/src/main.js b/src/main.js index 29f2f30..82a54e8 100644 --- a/src/main.js +++ b/src/main.js @@ -10,14 +10,14 @@ import Framework from './framework' import LUT from './marching_cube_LUT.js' import MarchingCubes from './marching_cubes.js' -const DEFAULT_VISUAL_DEBUG = true; +const DEFAULT_VISUAL_DEBUG = false; const DEFAULT_ISO_LEVEL = 1.0; -const DEFAULT_GRID_RES = 4; -const DEFAULT_GRID_WIDTH = 10; -const DEFAULT_NUM_METABALLS = 10; -const DEFAULT_MIN_RADIUS = 0.5; -const DEFAULT_MAX_RADIUS = 1; -const DEFAULT_MAX_SPEED = 0.01; +const DEFAULT_GRID_RES = 30; +const DEFAULT_GRID_WIDTH = 15; +const DEFAULT_NUM_METABALLS = 5; +const DEFAULT_MIN_RADIUS = 1.0; +const DEFAULT_MAX_RADIUS = 1.5; +const DEFAULT_MAX_SPEED = 0.05; var App = { // @@ -99,7 +99,7 @@ function setupLights(scene) { // Directional light var directionalLight = new THREE.DirectionalLight( 0xffffff, 1 ); directionalLight.color.setHSL(0.1, 1, 0.95); - directionalLight.position.set(1, 10, 2); + directionalLight.position.set(-10, -10, 10); directionalLight.position.multiplyScalar(10); scene.add(directionalLight); @@ -109,6 +109,16 @@ function setupScene(scene) { App.marchingCubes = new MarchingCubes(App); } +function clearScene() { + var scene = App.scene; + scene.children.forEach(function(object){ + scene.remove(object); + }); + scene.add(new THREE.AxisHelper(20)); + setupCamera(App.camera); + setupLights(App.scene); + setupScene(App.scene); +} function setupGUI(gui) { @@ -124,37 +134,12 @@ function setupGUI(gui) { } }); - gui.add(App.config, 'numMetaballs', 1, 10).onChange(function(value) { + gui.add(App.config, 'numMetaballs', 1, 10).step(1).onChange(function(value) { + clearScene(); App.config.numMetaballs = value; App.marchingCubes.init(App); - }); - - // --- DEBUG --- - - var debugFolder = gui.addFolder('Debug'); - debugFolder.add(App.marchingCubes, 'showGrid').onChange(function(value) { - App.marchingCubes.showGrid = value; - if (value) { - App.marchingCubes.show(); - } else { - App.marchingCubes.hide(); - } - }); - - debugFolder.add(App.marchingCubes, 'showSpheres').onChange(function(value) { - App.marchingCubes.showSpheres = value; - if (value) { - for (var i = 0; i < App.config.numMetaballs; i++) { - App.marchingCubes.balls[i].show(); - } - } else { - for (var i = 0; i < App.config.numMetaballs; i++) { - App.marchingCubes.balls[i].hide(); - } - } - }); - debugFolder.open(); + }); } // when the scene is done initializing, it will call onLoad, then on frame updates, call onUpdate -Framework.init(onLoad, onUpdate); +Framework.init(onLoad, onUpdate); \ No newline at end of file diff --git a/src/marching_cube_LUT.js b/src/marching_cube_LUT.js index 0002bee..e45072a 100644 --- a/src/marching_cube_LUT.js +++ b/src/marching_cube_LUT.js @@ -303,4 +303,4 @@ var TRI_TABLE = new Int32Array([ export default { EDGE_TABLE: EDGE_TABLE, TRI_TABLE: TRI_TABLE -} +} \ No newline at end of file diff --git a/src/marching_cubes.js b/src/marching_cubes.js index 505eb24..466c4e5 100644 --- a/src/marching_cubes.js +++ b/src/marching_cubes.js @@ -4,11 +4,40 @@ import Metaball from './metaball.js'; import InspectPoint from './inspect_point.js' import LUT from './marching_cube_LUT.js'; var VISUAL_DEBUG = true; +const E = 1e-5; const LAMBERT_WHITE = new THREE.MeshLambertMaterial({ color: 0xeeeeee }); const LAMBERT_GREEN = new THREE.MeshBasicMaterial( { color: 0x00ee00, transparent: true, opacity: 0.5 }); const WIREFRAME_MAT = new THREE.LineBasicMaterial( { color: 0xffffff, linewidth: 10 } ); +const STD_UNIFORMS = (obj) => { + return Object.assign({ + u_albedo: { + type: 'vec3', + value: new THREE.Color(0xFF0000) + }, + u_ambient: { + type: 'v3', + value: new THREE.Color(0xFFFFFF) + }, + u_lightCol: { + type: 'v3', + value: new THREE.Color(0xFFFFFF) + }, + u_lightPos: { + type: 'v3', + value: new THREE.Vector3(5, 10, 10) + }, + u_lightIntensity: { + type: 'f', + value: 0.1 + }, + u_viewPos: { + type: 'v3', + value: window.viewPos + } + }, obj); +}; export default class MarchingCubes { @@ -144,8 +173,10 @@ export default class MarchingCubes { // Implement a function that returns the value of the all metaballs influence to a given point. // Please follow the resources given in the write-up for details. sample(point) { - // @TODO - var isovalue = 1.1; + var isovalue = 0.0; + for (var i = 0; i < this.balls.length; i++) { + isovalue += this.balls[i].radius2 / point.distanceToSquared(this.balls[i].pos); + } return isovalue; } @@ -164,6 +195,10 @@ export default class MarchingCubes { // Sampling the center point this.voxels[c].center.isovalue = this.sample(this.voxels[c].center.pos); + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].isovalue = this.sample(this.voxels[c].corners[i].pos); + } // Visualizing grid if (VISUAL_DEBUG && this.showGrid) { @@ -171,12 +206,21 @@ export default class MarchingCubes { // Toggle voxels on or off if (this.voxels[c].center.isovalue > this.isolevel) { this.voxels[c].show(); - } else { + } + else { this.voxels[c].hide(); } - this.voxels[c].center.updateLabel(this.camera); - } else { - this.voxels[c].center.clearLabel(); + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].updateLabel(this.camera); + } + } + + else { + + for (var i = 0; i < 8; i++) { + this.voxels[c].corners[i].clearLabel(); + } } } @@ -206,11 +250,38 @@ export default class MarchingCubes { }; makeMesh() { - // @TODO + this.mesh = new THREE.Mesh(new THREE.Geometry(), LAMBERT_GREEN); + this.mesh.geometry.dynamic = true; + this.scene.add(this.mesh); } updateMesh() { - // @TODO + var newVertices = []; + var newFaces = []; + + var faceIdx = 0; + + for (var i = 0; i < this.voxels.length; i++) { + var poly = this.voxels[i].polygonize(this.isolevel, this.sample.bind(this)); + + for (var j = 0; j < poly.vertexPositions.length; j+=3) { + var vp = poly.vertexPositions; + newVertices.push(vp[j], vp[j + 1], vp[j + 2]); + var vn = poly.vertexNormals; + var normals = [vn[j], vn[j + 1], vn[j + 2]]; + newFaces.push(new THREE.Face3(3 * faceIdx, 3 * faceIdx + 1, 3 * faceIdx + 2)); + faceIdx++; + } + + } + + this.mesh.geometry.vertices = newVertices; + this.mesh.geometry.faces = newFaces; + + this.mesh.geometry.verticesNeedUpdate = true; + this.mesh.geometry.elementsNeedUpdate = true; + + this.mesh.geometry.computeFaceNormals(); } }; @@ -282,7 +353,18 @@ class Voxel { var red = 0xff0000; // Center dot - this.center = new InspectPoint(new THREE.Vector3(x, y, z), 0, VISUAL_DEBUG); + this.center = new InspectPoint(new THREE.Vector3(x, y, z), 0, VISUAL_DEBUG); + + this.corners = []; + + this.corners[0] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[1] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[2] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[3] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y - halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[4] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[5] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z - halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[6] = new InspectPoint(new THREE.Vector3(x + halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); + this.corners[7] = new InspectPoint(new THREE.Vector3(x - halfGridCellWidth, y + halfGridCellWidth, z + halfGridCellWidth), 0, VISUAL_DEBUG); } show() { @@ -309,21 +391,72 @@ class Voxel { } vertexInterpolation(isolevel, posA, posB) { - - // @TODO - var lerpPos; - return lerpPos; + var t = (isolevel - posA.isovalue) / (posB.isovalue - posA.isovalue); + return new THREE.Vector3( + posA.pos.x + t * (posB.pos.x - posA.pos.x), + posA.pos.y + t * (posB.pos.y - posA.pos.y), + posA.pos.z + t * (posB.pos.z - posA.pos.z)); } - polygonize(isolevel) { + polygonize(isolevel, sample) { + + var vertexPositions = []; + var vertexNormals = []; + + var idx = 0; - // @TODO - var vertexList = []; - var normalList = []; + for (var i = 0; i < 8; i++) { + if (this.corners[i].isovalue < isolevel) { + idx |= Math.pow(2, i); + } + } + + if (LUT.EDGE_TABLE[idx] == 0) { + return { + vertexPositions, + vertexNormals + }; + } + + var vertexlist = []; + for (var i = 0; i < 12; i++) { + var c = i % 8; + var n = c + 1; + if (i < 8 && (i + 1) % 4 == 0) + { + n = c - 3; + } + if (i >= 8) + { + n = c + 4; + } + if (LUT.EDGE_TABLE[idx] & Math.pow(2, i)) { + vertexlist[i] = this.vertexInterpolation(isolevel, this.corners[c], this.corners[n]); + } + } + + for (var i = 0; i < 16; i++) { + var tri = LUT.TRI_TABLE[16 * idx + i]; + + if (tri < 0) { + break; + } + + var pt = vertexlist[tri]; + var s = sample(pt); + var delta = new THREE.Vector3(sample(new THREE.Vector3(E, 0, 0).add(pt)), + sample(new THREE.Vector3(0, E, 0).add(pt)), + sample(new THREE.Vector3(0, 0, E).add(pt))); + var normal = delta.subScalar(s).normalize(); + + vertexPositions.push(pt); + vertexNormals.push(normal); + } return { - vertPositions: vertPositions, - vertNormals: vertNormals + vertexPositions: vertexPositions, + vertexNormals: vertexNormals }; + }; } \ No newline at end of file diff --git a/src/metaball.js b/src/metaball.js index 6a057bc..53a20a9 100644 --- a/src/metaball.js +++ b/src/metaball.js @@ -1,6 +1,6 @@ const THREE = require('three') -var SPHERE_GEO = new THREE.SphereBufferGeometry(1, 32, 32); +var SPHERE_GEO = new THREE.SphereBufferGeometry(1, 16, 16); var LAMBERT_WHITE = new THREE.MeshLambertMaterial( { color: 0x9EB3D8, transparent: true, opacity: 0.5 }); export default class Metaball { @@ -41,6 +41,22 @@ export default class Metaball { }; update() { - // @TODO + + var pos = new THREE.Vector3().addVectors(this.pos, this.vel); + + var min = 2 * this.radius; + var max = this.gridWidth - min; + + if (pos.x > max || pos.x < min) { + this.vel.x *= -1.0; + } + if (pos.y > max || pos.y < min) { + this.vel.y *= -1.0; + } + if (pos.z > max || pos.z < min) { + this.vel.z *= -1.0; + } + + this.pos.add(this.vel); } } \ No newline at end of file