feat: Optimize Texture (UV Packing)

Assets/merge-texture-helper.shader

@@ -5,6 +5,8 @@ Shader "Hidden/merge_texture_helper"
 		_MainTex ("Texture", 2D) = "white" {}
 		// x, y, w, h
 		_Rect ("Rectangle", Vector) = (0, 0, 1, 1)
+		_SrcRect ("SourceRectangle", Vector) = (0, 0, 1, 1)
+		_NoClip ("NoClip", Int) = 0
 	}
 	SubShader
 	{
@@ -35,6 +37,8 @@ Shader "Hidden/merge_texture_helper"
 			sampler2D _MainTex;
 			float4 _MainTex_ST;
 			float4 _Rect;
+			float4 _SrcRect;
+			int _NoClip;
 
 			v2f vert (appdata v)
 			{
@@ -47,8 +51,10 @@ Shader "Hidden/merge_texture_helper"
 
 			fixed4 frag (v2f i) : SV_Target
 			{
-				fixed4 c = tex2D(_MainTex, TRANSFORM_TEX(i.uv, _MainTex));
-				clip(c.a - 0.0001);
+				float2 uv = i.uv * _SrcRect.zw + _SrcRect.xy;
+				fixed4 c = tex2D(_MainTex, uv);
+				if (_NoClip == 0)
+					clip(c.a - 0.0001);
 				return c;
 			}
 			ENDCG

CHANGELOG-PRERELEASE.md

@@ -14,6 +14,8 @@ The format is based on [Keep a Changelog].
     - We may relax some restriction in the future.
   - Because we have to check for each condition if we use AnyState but we can check for only one (in best case) with entry/exit, this generally reduces cost for checking an parameter in a state.
   - Combined with Entry / Exit to 1D BlendTree optimization, which is implemented in previous release, your AnyState layer may be optimized to 1D BlendTree.
+- Optimize Texture in Trace nad Optimize `#1181`
+  - Avatar Optimizer will pack texture and tries to reduce the VRAM usage.
 
 ### Changed
 - Skip Enablement Mismatched Renderers is now disabled by default `#1169`

CHANGELOG.md

@@ -14,6 +14,8 @@ The format is based on [Keep a Changelog].
     - We may relax some restriction in the future.
   - Because we have to check for each condition if we use AnyState but we can check for only one (in best case) with entry/exit, this generally reduces cost for checking an parameter in a state.
   - Combined with Entry / Exit to 1D BlendTree optimization, which is implemented in previous release, your AnyState layer may be optimized to 1D BlendTree.
+- Optimize Texture in Trace nad Optimize `#1181`
+  - Avatar Optimizer will pack texture and tries to reduce the VRAM usage.
 
 ### Changed
 - Skip Enablement Mismatched Renderers is now disabled by default `#1169`

Editor/Inspector/TraceAndOptimizeEditor.cs

@@ -14,6 +14,7 @@ internal class TraceAndOptimizeEditor : AvatarGlobalComponentEditorBase
         private SerializedProperty _optimizeAnimator = null!; // Initialized in OnEnable
         private SerializedProperty _mergeSkinnedMesh = null!; // Initialized in OnEnable
         private SerializedProperty _allowShuffleMaterialSlots = null!; // Initialized in OnEnable
+        private SerializedProperty _optimizeTexture = null!; // Initialized in OnEnable
         private SerializedProperty _mmdWorldCompatibility = null!; // Initialized in OnEnable
         private SerializedProperty _advancedSettings = null!; // Initialized in OnEnable
         private GUIContent _advancedSettingsLabel = new GUIContent();
@@ -29,6 +30,7 @@ private void OnEnable()
             _optimizeAnimator = serializedObject.FindProperty(nameof(TraceAndOptimize.optimizeAnimator));
             _mergeSkinnedMesh = serializedObject.FindProperty(nameof(TraceAndOptimize.mergeSkinnedMesh));
             _allowShuffleMaterialSlots = serializedObject.FindProperty(nameof(TraceAndOptimize.allowShuffleMaterialSlots));
+            _optimizeTexture = serializedObject.FindProperty(nameof(TraceAndOptimize.optimizeTexture));
             _mmdWorldCompatibility = serializedObject.FindProperty(nameof(TraceAndOptimize.mmdWorldCompatibility));
             _advancedSettings = serializedObject.FindProperty(nameof(TraceAndOptimize.advancedSettings));
         }
@@ -58,6 +60,7 @@ protected override void OnInspectorGUIInner()
                 EditorGUILayout.PropertyField(_allowShuffleMaterialSlots);
                 EditorGUI.indentLevel--;
             }
+            EditorGUILayout.PropertyField(_optimizeTexture);
 
             _advancedSettingsLabel.text = AAOL10N.Tr("TraceAndOptimize:prop:advancedOptimization");
             AdvancedOpened = EditorGUILayout.Foldout(AdvancedOpened, _advancedSettingsLabel);

Editor/OptimizerPlugin.cs

@@ -54,6 +54,7 @@ protected override void Configure()
                             })
                         .Then.Run("Validation", (ctx) => ComponentValidation.ValidateAll(ctx.AvatarRootObject))
                         .Then.Run(Processors.TraceAndOptimizes.LoadTraceAndOptimizeConfiguration.Instance)
+                        .Then.Run(Processors.DupliacteAssets.Instance)
                         .Then.Run(Processors.ParseAnimator.Instance)
                         .Then.Run(Processors.TraceAndOptimizes.AddRemoveEmptySubMesh.Instance)
                         .Then.Run(Processors.TraceAndOptimizes.AutoFreezeBlendShape.Instance)
@@ -73,6 +74,7 @@ protected override void Configure()
                         .Then.Run(Processors.TraceAndOptimizes.ConfigureRemoveZeroSizedPolygon.Instance)
                         .Then.Run(Processors.MergeBoneProcessor.Instance)
                         .Then.Run(Processors.RemoveZeroSizedPolygonProcessor.Instance)
+                        .Then.Run(Processors.TraceAndOptimizes.OptimizeTexture.Instance)
                         .Then.Run(Processors.AnimatorOptimizer.RemoveInvalidProperties.Instance)
                         ;
                 });

Editor/Processors/DupliacteAssets.cs

@@ -0,0 +1,98 @@
+using System;
+using Anatawa12.AvatarOptimizer.ndmf;
+using nadena.dev.ndmf;
+using UnityEditor;
+using UnityEditor.Animations;
+using UnityEngine;
+using Object = UnityEngine.Object;
+
+namespace Anatawa12.AvatarOptimizer.Processors;
+
+/// <summary>
+/// The class to clone something for future in-place modification
+/// 
+/// Currently this class is intended to clone
+/// </summary>
+internal class DupliacteAssets : Pass<DupliacteAssets>
+{
+    protected override void Execute(BuildContext context)
+    {
+        if (!context.GetState<AAOEnabled>().Enabled) return;
+
+        var cloner = new Cloner();
+
+        foreach (var component in context.GetComponents<Component>())
+        {
+            switch (component)
+            {
+                case SkinnedMeshRenderer renderer:
+                {
+                    var meshInfo2 = context.GetMeshInfoFor(renderer);
+                    foreach (var subMesh in meshInfo2.SubMeshes)
+                    foreach (ref var material in subMesh.SharedMaterials.AsSpan())
+                            material = cloner.MapObject(material);
+                }
+                    break;
+                default:
+                {
+                    using var serializedObject = new SerializedObject(component);
+
+                    foreach (var objectReferenceProperty in serializedObject.ObjectReferenceProperties())
+                    {
+                        objectReferenceProperty.objectReferenceValue = cloner.MapObject(objectReferenceProperty.objectReferenceValue);
+                    }
+
+                    serializedObject.ApplyModifiedPropertiesWithoutUndo();
+
+                    break;
+                }
+            }
+        }
+    }
+
+    class Cloner : DeepCloneHelper
+    {
+        protected override Object? CustomClone(Object o) => null;
+
+        protected override ComponentSupport GetComponentSupport(Object o)
+        {
+            switch (o)
+            {
+                // Target Objects
+                case Material:
+                    return ComponentSupport.Clone;
+
+                // intermediate objects
+                case Motion:
+                case AnimatorController:
+                case AnimatorOverrideController:
+                case AnimatorState:
+                case AnimatorStateMachine:
+                case AnimatorTransitionBase:
+                case StateMachineBehaviour:
+
+#if AAO_VRM0
+                case VRM.BlendShapeAvatar:
+                case VRM.BlendShapeClip:
+#endif
+#if AAO_VRM1
+                case UniVRM10.VRM10Object:
+                case UniVRM10.VRM10Expression:
+#endif
+                    return ComponentSupport.Clone;
+
+                case Texture:
+                case MonoScript:
+                case Component:
+                case GameObject:
+                    return ComponentSupport.NoClone;
+
+                case ScriptableObject:
+                    return ComponentSupport.NoClone;
+
+                default:
+                    return ComponentSupport.NoClone;
+            }
+        }
+    }
+}