Platform/webgpu/dev

https://jira.unity3d.com/browse/PLATGRAPH-3354
Fix memory crash with SRP Batcher when the mesh has multiple parts.

https://jira.unity3d.com/browse/PLATGRAPH-3353
Multisample depth textures cause URP CopyDepth to error.

https://jira.unity3d.com/browse/PLATGRAPH-3355
Fix to enable GPU Resident Drawing: instancing and culling.

Author: brendan-duncan

Packages/com.unity.render-pipelines.core/Runtime/RenderPipelineResources/GPUDriven/OccluderDepthPyramidKernels.compute

@@ -15,7 +15,9 @@ RW_TEXTURE2D(float, _DstDepth);
 #ifdef USE_SRC
     #ifdef SRC_IS_MSAA
         #ifdef SRC_IS_ARRAY
-            Texture2DMSArray<float> _SrcDepth;
+            #ifndef SHADER_API_WEBGPU // Texture2DMSArray is not supported by WebGPU
+                Texture2DMSArray<float> _SrcDepth;
+            #endif
         #else
             Texture2DMS<float> _SrcDepth;
         #endif
@@ -33,7 +35,11 @@ float LoadDepth(int2 coord, int srcSliceIndex)
 #ifdef USE_SRC
     #ifdef SRC_IS_MSAA
         #ifdef SRC_IS_ARRAY
-            return LOAD_TEXTURE2D_ARRAY_MSAA(_SrcDepth, coord, srcSliceIndex, 0).x;
+            #ifdef SHADER_API_WEBGPU // Texture2DMSArray is not supported by WebGPU
+                return 0.0;
+            #else
+                return LOAD_TEXTURE2D_ARRAY_MSAA(_SrcDepth, coord, srcSliceIndex, 0).x;
+            #endif
         #else
             return LOAD_TEXTURE2D_MSAA(_SrcDepth, coord, 0).x;
         #endif

Packages/com.unity.render-pipelines.universal/ShaderLibrary/DOTS.hlsl

@@ -3,7 +3,7 @@
 
 #ifndef HAVE_VFX_MODIFICATION
     #pragma multi_compile _ DOTS_INSTANCING_ON
-    #if UNITY_PLATFORM_ANDROID || UNITY_PLATFORM_WEBGL || UNITY_PLATFORM_UWP
+    #if UNITY_PLATFORM_ANDROID || (UNITY_PLATFORM_WEBGL && !SHADER_API_WEBGPU) || UNITY_PLATFORM_UWP
         #pragma target 3.5 DOTS_INSTANCING_ON
     #else
         #pragma target 4.5 DOTS_INSTANCING_ON