Fix misuse of offset in updatedynamicbuffer (#16147)

Co-authored-by: David Catuhe <david@catuhe.com>
BabylonJS · Feb 5, 2025 · c9fbe99 · c9fbe99
1 parent 69cdc19
commit c9fbe99
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/packages/dev/core/src/Engines/Extensions/engine.dynamicBuffer.ts b/packages/dev/core/src/Engines/Extensions/engine.dynamicBuffer.ts
@@ -60,15 +60,15 @@ ThinEngine.prototype.updateDynamicVertexBuffer = function (this: ThinEngine, ver
         }
     } else {
         if (data instanceof Array) {
-            this._gl.bufferSubData(this._gl.ARRAY_BUFFER, 0, new Float32Array(data).subarray(byteOffset, byteOffset + byteLength));
+            this._gl.bufferSubData(this._gl.ARRAY_BUFFER, byteOffset, new Float32Array(data).subarray(0, byteLength / 4));
         } else {
             if (data instanceof ArrayBuffer) {
-                data = new Uint8Array(data, byteOffset, byteLength);
+                data = new Uint8Array(data, 0, byteLength);
             } else {
-                data = new Uint8Array(data.buffer, data.byteOffset + byteOffset, byteLength);
+                data = new Uint8Array(data.buffer, data.byteOffset, byteLength);
             }
 
-            this._gl.bufferSubData(this._gl.ARRAY_BUFFER, 0, data);
+            this._gl.bufferSubData(this._gl.ARRAY_BUFFER, byteOffset, data);
         }
     }