From b5b357c13273ff13e81f11cdc1bbc2a8231edfca Mon Sep 17 00:00:00 2001
From: sebavan <vandenberghe.sebastien@gmail.com>
Date: Wed, 3 Aug 2022 20:34:13 +0200
Subject: [PATCH] Add support for Integer attributes (#12830)

* fix native sprites

* Babylon Native Sprites

* Add support for vertexAttribIPointer
---
 packages/dev/core/src/Engines/thinEngine.ts       | 6 +++++-
 packages/dev/core/src/LibDeclarations/webgl2.d.ts | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/dev/core/src/Engines/thinEngine.ts b/packages/dev/core/src/Engines/thinEngine.ts
index d75c5f7a554..9713dc62a9a 100644
--- a/packages/dev/core/src/Engines/thinEngine.ts
+++ b/packages/dev/core/src/Engines/thinEngine.ts
@@ -2239,7 +2239,11 @@ export class ThinEngine {
 
         if (changed || this._vaoRecordInProgress) {
             this.bindArrayBuffer(buffer);
-            this._gl.vertexAttribPointer(indx, size, type, normalized, stride, offset);
+            if (type === this._gl.UNSIGNED_INT || type === this._gl.INT) {
+                this._gl.vertexAttribIPointer(indx, size, type, stride, offset);
+            } else {
+                this._gl.vertexAttribPointer(indx, size, type, normalized, stride, offset);
+            }
         }
     }
 
diff --git a/packages/dev/core/src/LibDeclarations/webgl2.d.ts b/packages/dev/core/src/LibDeclarations/webgl2.d.ts
index b32f5d7d927..340d6b2635a 100644
--- a/packages/dev/core/src/LibDeclarations/webgl2.d.ts
+++ b/packages/dev/core/src/LibDeclarations/webgl2.d.ts
@@ -127,6 +127,8 @@ interface WebGLRenderingContext {
     clearBufferiv(buffer: number, drawbuffer: number, values: ArrayBufferView, srcOffset: number | null): void;
     clearBufferuiv(buffer: number, drawbuffer: number, values: ArrayBufferView, srcOffset: number | null): void;
     clearBufferfi(buffer: number, drawbuffer: number, depth: number, stencil: number): void;
+
+    vertexAttribIPointer(index: number, size: number, type: number, stride: number, offset: number): void;
 }
 
 interface ImageBitmap {