Removed random write requirement from all render textures that aren't used as UAV (i.e. are used as fragment render targets). Sort of makes GLES3 work, and might provide an appreciable overall efficiency boost as well.

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/ASR/Runtime/AsrResources.cs

@@ -98,7 +98,7 @@ namespace ArmASR
             SceneLuminance.Create();
             
             // Resource FSR2_AutoExposure: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32G32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            CreateDoubleBufferedResource(AutoExposure, "ASR_AutoExposure", Vector2Int.one, rg16Format);
+            CreateDoubleBufferedResource(AutoExposure, "ASR_AutoExposure", Vector2Int.one, rg16Format, enableRandomWrite: true);
             
             // Resources FSR2_InternalDilatedVelocity1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16_FLOAT, FFX_RESOURCE_FLAGS_NONE
             CreateDoubleBufferedResource(DilatedMotionVectors, "ASR_InternalDilatedVelocity", contextDescription.MaxRenderSize, GraphicsFormat.R16G16_SFloat);
@@ -135,16 +135,16 @@ namespace ArmASR
             commandBuffer.GetTemporaryRT(AsrShaderIDs.UavReconstructedPrevNearestDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_UInt, 1, true);
 
             // FSR2_DilatedDepth: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavDilatedDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavDilatedDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_SFloat, 1);
 
             // FSR2_LockInputLuma: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavLockInputLuma, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavLockInputLuma, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1);
             
             // FSR2_DilatedReactiveMasks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8G8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavDilatedReactiveMasks, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R8G8_UNorm, 1, true);
+            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavDilatedReactiveMasks, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R8G8_UNorm, 1);
             
             // FSR2_PreparedInputColor: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16B16A16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavPreparedInputColor, maxRenderSize.x, maxRenderSize.y, 0, default, preparedInputColorNeedsFp16 ? GraphicsFormat.R16G16B16A16_SFloat : GraphicsFormat.R8G8B8A8_UNorm, 1, true);
+            commandBuffer.GetTemporaryRT(AsrShaderIDs.UavPreparedInputColor, maxRenderSize.x, maxRenderSize.y, 0, default, preparedInputColorNeedsFp16 ? GraphicsFormat.R16G16B16A16_SFloat : GraphicsFormat.R8G8B8A8_UNorm, 1);
             
             // FSR2_NewLocks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
             commandBuffer.GetTemporaryRT(AsrShaderIDs.UavNewLocks, displaySize.x, displaySize.y, 0, default, r8Format, 1, true);
@@ -177,11 +177,11 @@ namespace ArmASR
             commandBuffer.ReleaseTemporaryRT(AsrShaderIDs.UavNewLocks);
         }
 
-        private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format)
+        private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format, bool enableRandomWrite = false)
         {
             for (int i = 0; i < 2; ++i)
             {
-                resource[i] = new RenderTexture(size.x, size.y, 0, format) { name = name + (i + 1), enableRandomWrite = true };
+                resource[i] = new RenderTexture(size.x, size.y, 0, format) { name = name + (i + 1), enableRandomWrite = enableRandomWrite };
                 resource[i].Create();
             }
         }

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/ASRUpscaler.cs

@@ -48,7 +48,7 @@ namespace UnityEngine.Rendering.PostProcessing
 				SetupAutoReactiveDescription(context, config);
 				
 				var scaledRenderSize = _genReactiveDescription.RenderSize;
-				cmd.GetTemporaryRT(AsrShaderIDs.UavAutoReactive, scaledRenderSize.x, scaledRenderSize.y, 0, default, GraphicsFormat.R8_UNorm, 1, true);
+				cmd.GetTemporaryRT(AsrShaderIDs.UavAutoReactive, scaledRenderSize.x, scaledRenderSize.y, 0, default, GraphicsFormat.R8_UNorm, 1);
 				_genReactiveDescription.OutReactive = new ResourceView(AsrShaderIDs.UavAutoReactive);
 				_asrContext.GenerateReactiveMask(_genReactiveDescription, cmd);
 				_dispatchDescription.Reactive = new ResourceView(AsrShaderIDs.UavAutoReactive);