Made all the ASR shader keywords global and encapsulated all of the keyword management into a separate class, which will enable and disable keywords globally based on the initialization flags and dispatch parameters.

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

@@ -65,6 +65,8 @@ namespace ArmASR
         private readonly Asr.GenerateReactiveConstants[] _generateReactiveConstantsArray = { new Asr.GenerateReactiveConstants() };
         private ref Asr.GenerateReactiveConstants GenReactiveConsts => ref _generateReactiveConstantsArray[0];
 
+        private AsrKeywords _keywords = new();
+
         private bool _firstExecution;
         private Vector2 _previousJitterOffset;
         private int _resourceFrameIndex;
@@ -142,6 +144,8 @@ namespace ArmASR
             if (dispatchParams.UseTextureArrays)
                 commandBuffer.EnableShaderKeyword("UNITY_FFXM_TEXTURE2D_X_ARRAY");
             
+            _keywords.ApplyKeywords(commandBuffer, _contextDescription.Flags, dispatchParams);
+            
             if (_firstExecution)
             {
                 commandBuffer.SetRenderTarget(_resources.LockStatus[0]);

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

@@ -0,0 +1,124 @@
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace ArmASR
+{
+    public class AsrKeywords
+    {
+        private static readonly string OptionHalfPrecision = "FFXM_HALF";
+        private static readonly string OptionHdrColorInput = "FFXM_FSR2_OPTION_HDR_COLOR_INPUT";
+        private static readonly string OptionLowResolutionMotionVectors = "FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS";
+        private static readonly string OptionJitteredMotionVectors = "FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS";
+        private static readonly string OptionInvertedDepth = "FFXM_FSR2_OPTION_INVERTED_DEPTH";
+        private static readonly string OptionReprojectUseLut = "FFXM_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE";
+        private static readonly string OptionApplySharpening = "FFXM_FSR2_OPTION_APPLY_SHARPENING";
+        
+#if UNITY_2021_2_OR_NEWER
+        private readonly GlobalKeyword _halfPrecisionKeyword;
+        private readonly GlobalKeyword _hdrColorInputKeyword;
+        private readonly GlobalKeyword _lowResMotionVectorsKeyword;
+        private readonly GlobalKeyword _jitteredMotionVectorsKeyword;
+        private readonly GlobalKeyword _invertedDepthKeyword;
+        private readonly GlobalKeyword _reprojectUseLutKeyword;
+        private readonly GlobalKeyword _applySharpeningKeyword;
+#endif
+        
+        public AsrKeywords()
+        {
+#if UNITY_2021_2_OR_NEWER
+            _halfPrecisionKeyword = new GlobalKeyword(OptionHalfPrecision);
+            _hdrColorInputKeyword = new GlobalKeyword(OptionHdrColorInput);
+            _lowResMotionVectorsKeyword = new GlobalKeyword(OptionLowResolutionMotionVectors);
+            _jitteredMotionVectorsKeyword = new GlobalKeyword(OptionJitteredMotionVectors);
+            _invertedDepthKeyword = new GlobalKeyword(OptionInvertedDepth);
+            _reprojectUseLutKeyword = new GlobalKeyword(OptionReprojectUseLut);
+            _applySharpeningKeyword = new GlobalKeyword(OptionApplySharpening);
+#endif
+        }
+
+        public void ApplyKeywords(CommandBuffer commandBuffer, Asr.InitializationFlags initFlags, in Asr.DispatchDescription dispatchParams)
+        {
+            bool useLut = false;
+#if UNITY_2022_1_OR_NEWER   // This will also work in 2020.3.43+ and 2021.3.14+ 
+            if (SystemInfo.computeSubGroupSize == 64)
+            {
+                useLut = true;
+            }
+#endif
+            
+            // This matches the permutation rules from the CreatePipeline* functions
+#if UNITY_2021_2_OR_NEWER
+            if ((initFlags & Asr.InitializationFlags.EnableFP16Usage) != 0)
+                commandBuffer.EnableKeyword(_halfPrecisionKeyword);
+            else
+                commandBuffer.DisableKeyword(_halfPrecisionKeyword);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableHighDynamicRange) != 0)
+                commandBuffer.EnableKeyword(_hdrColorInputKeyword);
+            else
+                commandBuffer.DisableKeyword(_hdrColorInputKeyword);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
+                commandBuffer.EnableKeyword(_lowResMotionVectorsKeyword);
+            else
+                commandBuffer.DisableKeyword(_lowResMotionVectorsKeyword);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0)
+                commandBuffer.EnableKeyword(_jitteredMotionVectorsKeyword);
+            else
+                commandBuffer.DisableKeyword(_jitteredMotionVectorsKeyword);
+
+            if ((initFlags & Asr.InitializationFlags.EnableDepthInverted) != 0)
+                commandBuffer.EnableKeyword(_invertedDepthKeyword);
+            else
+                commandBuffer.DisableKeyword(_invertedDepthKeyword);
+            
+            if (useLut)
+                commandBuffer.EnableKeyword(_reprojectUseLutKeyword);
+            else
+                commandBuffer.DisableKeyword(_reprojectUseLutKeyword);
+            
+            if (dispatchParams.EnableSharpening)
+                commandBuffer.EnableKeyword(_applySharpeningKeyword);
+            else
+                commandBuffer.DisableKeyword(_applySharpeningKeyword);
+#else
+            if ((initFlags & Asr.InitializationFlags.EnableFP16Usage) != 0)
+                commandBuffer.EnableShaderKeyword(OptionHalfPrecision);
+            else
+                commandBuffer.DisableShaderKeyword(OptionHalfPrecision);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableHighDynamicRange) != 0)
+                commandBuffer.EnableShaderKeyword(OptionHdrColorInput);
+            else
+                commandBuffer.DisableShaderKeyword(OptionHdrColorInput);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
+                commandBuffer.EnableShaderKeyword(OptionLowResolutionMotionVectors);
+            else
+                commandBuffer.DisableShaderKeyword(OptionLowResolutionMotionVectors);
+            
+            if ((initFlags & Asr.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0)
+                commandBuffer.EnableShaderKeyword(OptionJitteredMotionVectors);
+            else
+                commandBuffer.DisableShaderKeyword(OptionJitteredMotionVectors);
+
+            if ((initFlags & Asr.InitializationFlags.EnableDepthInverted) != 0)
+                commandBuffer.EnableShaderKeyword(OptionInvertedDepth);
+            else
+                commandBuffer.DisableShaderKeyword(OptionInvertedDepth);
+            
+            if (useLut)
+                commandBuffer.EnableShaderKeyword(OptionReprojectUseLut);
+            else
+                commandBuffer.DisableShaderKeyword(OptionReprojectUseLut);
+            
+            if (dispatchParams.EnableSharpening)
+                commandBuffer.EnableShaderKeyword(OptionApplySharpening);
+            else
+                commandBuffer.DisableShaderKeyword(OptionApplySharpening);
+#endif
+            
+        }
+    }
+}

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

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: a2636bdd1878444fb3d3475610d379df
+timeCreated: 1742641520

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

@@ -46,7 +46,6 @@ namespace ArmASR
         protected Material FragmentMaterial;
         protected int FragmentPass;
         protected MaterialPropertyBlock FragmentProperties;
-        protected readonly List<LocalKeyword> FragmentKeywords = new();
         
         private CustomSampler _sampler;
         
@@ -64,8 +63,6 @@ namespace ArmASR
                 Asr.DestroyObject(FragmentMaterial);
                 FragmentMaterial = null;
             }
-            
-            FragmentKeywords.Clear();
         }
         
         public void ScheduleDispatch(CommandBuffer commandBuffer, Asr.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
@@ -78,11 +75,6 @@ namespace ArmASR
         protected abstract void DoScheduleDispatch(CommandBuffer commandBuffer, Asr.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY);
 
         protected void InitComputeShader(string passName, ComputeShader shader)
-        {
-            InitComputeShader(passName, shader, ContextDescription.Flags);
-        }
-        
-        private void InitComputeShader(string passName, ComputeShader shader, Asr.InitializationFlags flags)
         {
             if (shader == null)
             {
@@ -92,19 +84,9 @@ namespace ArmASR
             ComputeShader = shader;
             KernelIndex = ComputeShader.FindKernel("main");
             _sampler = CustomSampler.Create(passName);
-
-            foreach (string keyword in GetKeywords(flags))
-            {
-                ComputeShader.EnableKeyword(keyword);
-            }
         }
 
         protected void InitFragmentShader(string passName, Shader shader, int passNumber)
-        {
-            InitFragmentShader(passName, shader, passNumber, ContextDescription.Flags);
-        }
-        
-        private void InitFragmentShader(string passName, Shader shader, int passNumber, Asr.InitializationFlags flags)
         {
             if (shader == null)
             {
@@ -113,42 +95,22 @@ namespace ArmASR
             
             FragmentMaterial = new Material(shader);
             FragmentPass = passNumber;
-            _sampler = CustomSampler.Create(passName);
-
             FragmentProperties = new MaterialPropertyBlock();
-            foreach (string keyword in GetKeywords(flags))
-            {
-                // TODO: also want to include keywords that should be disabled (false)
-                // TODO: might be better to just determine all the keywords once up front and set them globally, probably don't even need to manage them here but in the AsrContext instead
-                // NOTE: be mindful of UNITY_2021_2_OR_NEWER (Local & GlobalKeyword were introduced there)
-                FragmentKeywords.Add(new LocalKeyword(shader, keyword));
-            }
+            _sampler = CustomSampler.Create(passName);
         }
 
-        protected void BlitFragment(CommandBuffer commandBuffer)
+        protected void BlitFragment(CommandBuffer commandBuffer, params RenderTargetIdentifier[] renderTargets)
         {
+            if (renderTargets == null || renderTargets.Length == 0)
+                commandBuffer.SetRenderTarget(BuiltinRenderTextureType.None);
+            else if (renderTargets.Length == 1)
+                commandBuffer.SetRenderTarget(renderTargets[0]);
+            else
+                commandBuffer.SetRenderTarget(renderTargets, BuiltinRenderTextureType.None);
+            
             commandBuffer.DrawProcedural(Matrix4x4.identity, FragmentMaterial, FragmentPass, MeshTopology.Triangles, 3, 1, FragmentProperties);
         }
 
-        private static IEnumerable<string> GetKeywords(Asr.InitializationFlags flags)
-        {
-            bool useLut = false;
-#if UNITY_2022_1_OR_NEWER   // This will also work in 2020.3.43+ and 2021.3.14+ 
-            if (SystemInfo.computeSubGroupSize == 64)
-            {
-                useLut = true;
-            }
-#endif
-            
-            // This matches the permutation rules from the CreatePipeline* functions
-            if ((flags & Asr.InitializationFlags.EnableHighDynamicRange) != 0) yield return "FFXM_FSR2_OPTION_HDR_COLOR_INPUT";
-            if ((flags & Asr.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) yield return "FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS";
-            if ((flags & Asr.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0) yield return "FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS";
-            if ((flags & Asr.InitializationFlags.EnableDepthInverted) != 0) yield return "FFXM_FSR2_OPTION_INVERTED_DEPTH";
-            if (useLut) yield return "FFXM_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE";
-            if ((flags & Asr.InitializationFlags.EnableFP16Usage) != 0) yield return "FFXM_HALF";
-        }
-        
         [Conditional("ENABLE_PROFILER")]
         protected void BeginSample(CommandBuffer cmd)
         {
@@ -259,35 +221,14 @@ namespace ArmASR
     
     internal class AsrAccumulatePass : AsrPass
     {
-        private const string SharpeningKeyword = "FFXM_FSR2_OPTION_APPLY_SHARPENING";
-    
-#if UNITY_2021_2_OR_NEWER
-        private readonly LocalKeyword _sharpeningKeyword;
-#endif
-        
         public AsrAccumulatePass(Asr.ContextDescription contextDescription, AsrResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitFragmentShader("Reproject & Accumulate", contextDescription.Shaders.fragmentShader, 3);
-#if UNITY_2021_2_OR_NEWER
-            _sharpeningKeyword = new LocalKeyword(ComputeShader, SharpeningKeyword);    // TODO: dynamically enable this on MaterialPropertyBlock
-#endif
         }
 
         protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Asr.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
-#if UNITY_2021_2_OR_NEWER
-            if (dispatchParams.EnableSharpening)
-                commandBuffer.EnableKeyword(ComputeShader, _sharpeningKeyword);
-            else
-                commandBuffer.DisableKeyword(ComputeShader, _sharpeningKeyword);
-#else
-            if (dispatchParams.EnableSharpening)
-                commandBuffer.EnableShaderKeyword(SharpeningKeyword);
-            else
-                commandBuffer.DisableShaderKeyword(SharpeningKeyword);
-#endif
-            
             if ((ContextDescription.Flags & Asr.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
             {
                 commandBuffer.SetGlobalTexture(AsrShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/ASR/Shaders/ffxm_fsr2_compute_luminance_pyramid_pass.compute

@@ -1,9 +1,9 @@
 #pragma kernel main
 
-#pragma multi_compile_local __ FFXM_HALF
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_INVERTED_DEPTH
+#pragma multi_compile __ FFXM_HALF
+#pragma multi_compile __ FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#pragma multi_compile __ FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS
+#pragma multi_compile __ FFXM_FSR2_OPTION_INVERTED_DEPTH
 
 #pragma multi_compile __ UNITY_FFXM_TEXTURE2D_X_ARRAY
 

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/ASR/Shaders/ffxm_fsr2_lock_pass.compute

@@ -1,9 +1,9 @@
 #pragma kernel main
 
-#pragma multi_compile_local __ FFXM_HALF
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFXM_FSR2_OPTION_INVERTED_DEPTH
+#pragma multi_compile __ FFXM_HALF
+#pragma multi_compile __ FFXM_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#pragma multi_compile __ FFXM_FSR2_OPTION_JITTERED_MOTION_VECTORS
+#pragma multi_compile __ FFXM_FSR2_OPTION_INVERTED_DEPTH
 
 #pragma multi_compile __ UNITY_FFXM_TEXTURE2D_X_ARRAY