Updated shaders and passes to the framework changes

Changing to lowercase field names for public struct members now, which follows the C# naming conventions. FSR2/3 won't follow suit for now, because too much code already makes use of the capitalized names.

Runtime/Common/FfxContextBase.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    public abstract class FfxContextBase
+    {
+        protected static void DestroyPass<TPass>(ref TPass pass)
+            where TPass: class, IDisposable
+        {
+            if (pass == null)
+                return;
+            
+            pass.Dispose();
+            pass = null;
+        }
+
+        /// <summary>
+        /// Convenience class for handling a constants buffer containing a single struct item.
+        /// This wraps the compute buffer and the value array, as well as providing easy access to both.
+        /// </summary>
+        protected class ConstantsBuffer<TConst>
+            where TConst: struct
+        {
+            private ComputeBuffer _computeBuffer;
+            
+            private readonly TConst[] _constArray = { new TConst() };
+            public ref TConst Value => ref _constArray[0];
+
+            public void Create()
+            {
+                _computeBuffer = new ComputeBuffer(1, Marshal.SizeOf<TConst>(), ComputeBufferType.Constant);
+            }
+
+            public void UpdateBufferData(CommandBuffer commandBuffer)
+            {
+                commandBuffer.SetBufferData(_computeBuffer, _constArray);
+            }
+            
+            public void Destroy()
+            {
+                if (_computeBuffer == null)
+                    return;
+                
+                _computeBuffer.Release();
+                _computeBuffer = null;
+            }
+
+            public static implicit operator ComputeBuffer(ConstantsBuffer<TConst> constants)
+            {
+                return constants._computeBuffer;
+            }
+        }
+    }
+}

Runtime/Common/FfxContextBase.cs.meta

@@ -0,0 +1,11 @@
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Runtime/Common/FfxEnums.cs

@@ -0,0 +1,9 @@
+namespace FidelityFX
+{
+    public enum BackbufferTransferFunction
+    {
+        LDR_sRGB,
+        HDR_PQ,
+        HDR_scRGB,
+    }
+}

Runtime/Common/FfxEnums.cs.meta

@@ -0,0 +1,11 @@
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Runtime/Common/FfxPassBase.cs

@@ -0,0 +1,79 @@
+using System;
+using UnityEngine;
+using UnityEngine.Profiling;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    internal abstract class FfxPassBase: IDisposable
+    {
+        private readonly string _techName;
+        private string _passName;
+        
+        protected ComputeShader ComputeShader;
+        protected int KernelIndex;
+
+        protected FfxPassBase(string techName)
+        {
+            _techName = techName;
+        }
+
+        protected virtual void InitComputeShader(string passName, ComputeShader shader, string kernelName = "CS")
+        {
+            if (shader == null)
+            {
+                throw new MissingReferenceException($"Shader for {_techName} pass '{passName}' could not be loaded! Please ensure it is included in the project correctly.");
+            }
+
+            _passName = passName;
+            ComputeShader = shader;
+            KernelIndex = ComputeShader.FindKernel(kernelName);
+        }
+
+        public virtual void Dispose()
+        {
+        }
+
+        protected ProfilerSampler ProfilerSample(CommandBuffer commandBuffer)
+        {
+            return new ProfilerSampler(_passName, commandBuffer);
+        }
+
+        protected readonly struct ProfilerSampler : IDisposable
+        {
+            private readonly string _name;
+            private readonly CommandBuffer _commandBuffer;
+
+            public ProfilerSampler(string name, CommandBuffer commandBuffer)
+            {
+                _name = name;
+                _commandBuffer = commandBuffer;
+                _commandBuffer.BeginSample(_name);
+            }
+            
+            public void Dispose()
+            {
+                _commandBuffer.EndSample(_name);
+            }
+        }
+    }
+
+    internal abstract class FfxPassWithFlags<TFlags> : FfxPassBase
+        where TFlags: Enum
+    {
+        protected readonly TFlags Flags;
+
+        protected FfxPassWithFlags(string techName, TFlags flags) : base(techName)
+        {
+            Flags = flags;
+        }
+
+        protected override void InitComputeShader(string passName, ComputeShader shader, string kernelName = "CS")
+        {
+            base.InitComputeShader(passName, shader, kernelName);
+            SetupShaderKeywords();
+        }
+
+        protected abstract void SetupShaderKeywords();
+    }
+}

Runtime/Common/FfxPassBase.cs.meta

@@ -0,0 +1,11 @@
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Runtime/Common/FfxResourcesBase.cs

@@ -0,0 +1,96 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Experimental.Rendering;
+
+namespace FidelityFX
+{
+    internal abstract class FfxResourcesBase
+    {
+        protected static ComputeBuffer CreateBuffer<TElem>(string name, int count)
+        {
+            return new ComputeBuffer(count, Marshal.SizeOf<TElem>());
+        }
+
+        protected static Texture2D CreateLookup(string name, GraphicsFormat format, Color data)
+        {
+            var tex = new Texture2D(1, 1, format, TextureCreationFlags.None) { name = name };
+            tex.SetPixel(0, 0, data);
+            tex.Apply();
+            return tex;
+        }
+        
+        protected static Texture2D CreateLookup<T>(string name, in Vector2Int size, GraphicsFormat format, T[] data)
+        {
+            var tex = new Texture2D(size.x, size.y, format, TextureCreationFlags.None) { name = name };
+            tex.SetPixelData(data, 0);
+            tex.Apply();
+            return tex;
+        }
+        
+        protected static RenderTexture CreateResource(string name, in Vector2Int size, GraphicsFormat format)
+        {
+            var rt = new RenderTexture(size.x, size.y, 0, format) { name = name, enableRandomWrite = true };
+            rt.Create();
+            return rt;
+        }
+        
+        protected static RenderTexture CreateResourceMips(string name, in Vector2Int size, GraphicsFormat format)
+        {
+            int mipCount = 1 + Mathf.FloorToInt(Mathf.Log(Math.Max(size.x, size.y), 2.0f));
+            var rt = new RenderTexture(size.x, size.y, 0, format, mipCount) { name = name, enableRandomWrite = true, useMipMap = true, autoGenerateMips = false };
+            rt.Create();
+            return rt;
+        }
+        
+        protected static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, in Vector2Int size, GraphicsFormat format, int numElements = 2)
+        {
+            numElements = Math.Min(resource.Length, numElements);
+            for (int i = 0; i < numElements; ++i)
+            {
+                resource[i] = new RenderTexture(size.x, size.y, 0, format) { name = name + (i + 1), enableRandomWrite = true };
+                resource[i].Create();
+            }
+        }
+        
+        protected static void DestroyResource(ref Texture2D resource)
+        {
+            if (resource == null)
+                return;
+            
+#if UNITY_EDITOR
+            if (Application.isPlaying && !UnityEditor.EditorApplication.isPaused)
+                UnityEngine.Object.Destroy(resource);
+            else
+                UnityEngine.Object.DestroyImmediate(resource);
+#else
+            UnityEngine.Object.Destroy(resource);
+#endif
+            resource = null;
+        }
+
+        protected static void DestroyResource(ref RenderTexture resource)
+        {
+            if (resource == null)
+                return;
+            
+            resource.Release();
+            resource = null;
+        }
+        
+        protected static void DestroyResource(ref ComputeBuffer resource)
+        {
+            if (resource == null)
+                return;
+            
+            resource.Release();
+            resource = null;
+        }
+
+        protected static void DestroyResource(RenderTexture[] resource)
+        {
+            for (int i = 0; i < resource.Length; ++i)
+                DestroyResource(ref resource[i]);
+        }
+    }
+}

Runtime/Common/FfxResourcesBase.cs.meta

@@ -0,0 +1,11 @@
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Runtime/Common/FfxSpd.cs

@@ -0,0 +1,46 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+
+namespace FidelityFX
+{
+    public static class FfxSpd
+    {
+        public static void SetupSpdConstants(Vector2Int resolution, ref SpdConstants spdConstants, out Vector2Int dispatchThreadGroupCount, int mips = -1)
+        {
+            RectInt rectInfo = new RectInt(0, 0, resolution.x, resolution.y);
+            SpdSetup(rectInfo, out dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, mips);
+            
+            spdConstants.numWorkGroups = (uint)numWorkGroupsAndMips.x;
+            spdConstants.mips = (uint)numWorkGroupsAndMips.y;
+            spdConstants.workGroupOffsetX = (uint)workGroupOffset.x;
+            spdConstants.workGroupOffsetY = (uint)workGroupOffset.y;
+        }
+        
+        public static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
+        {
+            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
+
+            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
+            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
+
+            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
+
+            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
+            if (mips < 0)
+            {
+                float resolution = Math.Max(rectInfo.width, rectInfo.height);
+                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
+            }
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        public struct SpdConstants
+        {
+            public uint mips;
+            public uint numWorkGroups;
+            public uint workGroupOffsetX;
+            public uint workGroupOffsetY;
+        }
+    }
+}

Runtime/Common/FfxSpd.cs.meta

@@ -0,0 +1,11 @@
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Runtime/Common/FfxUtils.cs

@@ -0,0 +1,118 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    public static class FfxUtils
+    {
+        public static float GetMipmapBiasOffset(int renderWidth, int displayWidth)
+        {
+            return Mathf.Log((float)renderWidth / displayWidth, 2.0f) - 1.0f;
+        }
+
+        public static int GetJitterPhaseCount(int renderWidth, int displayWidth)
+        {
+            const float basePhaseCount = 8.0f;
+            int jitterPhaseCount = (int)(basePhaseCount * Mathf.Pow((float)displayWidth / renderWidth, 2.0f));
+            return jitterPhaseCount;
+        }
+
+        public static void GetJitterOffset(out float outX, out float outY, int index, int phaseCount)
+        {
+            outX = Halton((index % phaseCount) + 1, 2) - 0.5f;
+            outY = Halton((index % phaseCount) + 1, 3) - 0.5f;
+        }
+        
+        // Calculate halton number for index and base.
+        private static float Halton(int index, int @base)
+        {
+            float f = 1.0f, result = 0.0f;
+
+            for (int currentIndex = index; currentIndex > 0;) {
+
+                f /= @base;
+                result += f * (currentIndex % @base);
+                currentIndex = (int)Mathf.Floor((float)currentIndex / @base);
+            }
+
+            return result;
+        }
+        
+        public static float Lanczos2(float value)
+        {
+            return Mathf.Abs(value) < Mathf.Epsilon ? 1.0f : Mathf.Sin(Mathf.PI * value) / (Mathf.PI * value) * (Mathf.Sin(0.5f * Mathf.PI * value) / (0.5f * Mathf.PI * value));
+        }
+
+        public static float[] GenerateLanczos2Table(int width)
+        {
+            float[] lanczos2Weights = new float[width];
+            for (int currentLanczosWidthIndex = 0; currentLanczosWidthIndex < width; ++currentLanczosWidthIndex)
+            {
+                float x = 2.0f * currentLanczosWidthIndex / (width - 1);
+                float y = Lanczos2(x);
+                lanczos2Weights[currentLanczosWidthIndex] = y;
+            }
+
+            return lanczos2Weights;
+        }
+        
+        public static Vector4 SetupDeviceDepthToViewSpaceDepthParams(Vector2Int renderSize, float cameraNear, float cameraFar, float cameraFovAngleVertical, bool inverted, bool infinite)
+        {
+            // make sure it has no impact if near and far plane values are swapped in dispatch params
+            // the flags "inverted" and "infinite" will decide what transform to use
+            float min = Mathf.Min(cameraNear, cameraFar);
+            float max = Mathf.Max(cameraNear, cameraFar);
+
+            if (inverted)
+            {
+                (min, max) = (max, min);
+            }
+
+            float q = max / (min - max);
+            float d = -1.0f;
+
+            Vector4 matrixElemC = new Vector4(q, -1.0f - Mathf.Epsilon, q, 0.0f + Mathf.Epsilon);
+            Vector4 matrixElemE = new Vector4(q * min, -min - Mathf.Epsilon, q * min, max);
+            
+            // Revert x and y coords
+            float aspect = (float)renderSize.x / renderSize.y;
+            float cotHalfFovY = Mathf.Cos(0.5f * cameraFovAngleVertical) / Mathf.Sin(0.5f * cameraFovAngleVertical);
+
+            int matrixIndex = (inverted ? 2 : 0) + (infinite ? 1 : 0);
+            return new Vector4(
+                d * matrixElemC[matrixIndex],
+                matrixElemE[matrixIndex],
+                aspect / cotHalfFovY,
+                1.0f / cotHalfFovY);
+        }
+        
+#if !UNITY_2021_1_OR_NEWER
+        internal static void SetBufferData(this CommandBuffer commandBuffer, ComputeBuffer computeBuffer, Array data)
+        {
+            commandBuffer.SetComputeBufferData(computeBuffer, data);
+        }
+#endif
+        
+        /// <summary>
+        /// Alternative for CommandBuffer.SetComputeTextureParam that guards against attempts to bind mip levels that don't exist.
+        /// </summary>
+        internal static void SetComputeTextureMipParam(this CommandBuffer commandBuffer, ComputeShader computeShader, int kernelIndex, int nameID, Texture texture, int mipLevel)
+        {
+            mipLevel = Math.Min(mipLevel, texture.mipmapCount - 1);
+            commandBuffer.SetComputeTextureParam(computeShader, kernelIndex, nameID, texture, mipLevel);
+        }
+
+        internal static void SetComputeResourceParam(this CommandBuffer commandBuffer, ComputeShader computeShader, int kernelIndex, int nameID, in ResourceView resource)
+        {
+            commandBuffer.SetComputeTextureParam(computeShader, kernelIndex, nameID, resource.RenderTarget, resource.MipLevel, resource.SubElement);
+        }
+
+        internal static void SetComputeConstantBufferParam<TBuf>(this CommandBuffer commandBuffer, ComputeShader computeShader, int nameID, ComputeBuffer buffer)
+            where TBuf: struct
+        {
+            commandBuffer.SetComputeConstantBufferParam(computeShader, nameID, buffer, 0, Marshal.SizeOf<TBuf>());
+        }
+    }
+}

Runtime/Common/FfxUtils.cs.meta

@@ -0,0 +1,11 @@
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Runtime/FSR2/Fsr2.cs

@@ -21,7 +21,6 @@
 using System;
 using System.Runtime.InteropServices;
 using UnityEngine;
-using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR2
 {
@@ -80,60 +79,13 @@ namespace FidelityFX.FSR2
             }
         }
 
-        public static void GetRenderResolutionFromQualityMode(
-            out int renderWidth, out int renderHeight,
-            int displayWidth, int displayHeight, QualityMode qualityMode)
+        public static void GetRenderResolutionFromQualityMode(out int renderWidth, out int renderHeight, int displayWidth, int displayHeight, QualityMode qualityMode)
         {
             float ratio = GetUpscaleRatioFromQualityMode(qualityMode);
             renderWidth = Mathf.RoundToInt(displayWidth / ratio);
             renderHeight = Mathf.RoundToInt(displayHeight / ratio);
         }
         
-        public static float GetMipmapBiasOffset(int renderWidth, int displayWidth)
-        {
-            return Mathf.Log((float)renderWidth / displayWidth, 2.0f) - 1.0f;
-        }
-
-        public static int GetJitterPhaseCount(int renderWidth, int displayWidth)
-        {
-            const float basePhaseCount = 8.0f;
-            int jitterPhaseCount = (int)(basePhaseCount * Mathf.Pow((float)displayWidth / renderWidth, 2.0f));
-            return jitterPhaseCount;
-        }
-
-        public static void GetJitterOffset(out float outX, out float outY, int index, int phaseCount)
-        {
-            outX = Halton((index % phaseCount) + 1, 2) - 0.5f;
-            outY = Halton((index % phaseCount) + 1, 3) - 0.5f;
-        }
-        
-        // Calculate halton number for index and base.
-        private static float Halton(int index, int @base)
-        {
-            float f = 1.0f, result = 0.0f;
-
-            for (int currentIndex = index; currentIndex > 0;) {
-
-                f /= @base;
-                result += f * (currentIndex % @base);
-                currentIndex = (int)Mathf.Floor((float)currentIndex / @base);
-            }
-
-            return result;
-        }
-        
-        public static float Lanczos2(float value)
-        {
-            return Mathf.Abs(value) < Mathf.Epsilon ? 1.0f : Mathf.Sin(Mathf.PI * value) / (Mathf.PI * value) * (Mathf.Sin(0.5f * Mathf.PI * value) / (0.5f * Mathf.PI * value));
-        }
-        
-#if !UNITY_2021_1_OR_NEWER
-        internal static void SetBufferData(this CommandBuffer commandBuffer, ComputeBuffer computeBuffer, Array data)
-        {
-            commandBuffer.SetComputeBufferData(computeBuffer, data);
-        }
-#endif
-        
         public enum QualityMode
         {
             NativeAA = 0,
@@ -172,7 +124,7 @@ namespace FidelityFX.FSR2
         /// <summary>
         /// A structure encapsulating the parameters for dispatching the various passes of FidelityFX Super Resolution 2.
         /// </summary>
-        public class DispatchDescription
+        public struct DispatchDescription
         {
             public ResourceView Color;
             public ResourceView Depth;
@@ -199,26 +151,42 @@ namespace FidelityFX.FSR2
             // EXPERIMENTAL reactive mask generation parameters
             public bool EnableAutoReactive;
             public ResourceView ColorOpaqueOnly;
-            public float AutoTcThreshold = 0.05f;
-            public float AutoTcScale = 1.0f;
-            public float AutoReactiveScale = 5.0f;
-            public float AutoReactiveMax = 0.9f;
+            public float AutoTcThreshold;
+            public float AutoTcScale;
+            public float AutoReactiveScale;
+            public float AutoReactiveMax;
+
+            public static readonly DispatchDescription Default = new DispatchDescription
+            {
+                AutoTcThreshold = 0.05f,
+                AutoTcScale = 1.0f,
+                AutoReactiveScale = 5.0f,
+                AutoReactiveMax = 0.9f,
+            };
         }
 
         /// <summary>
         /// A structure encapsulating the parameters for automatic generation of a reactive mask.
         /// The default values for Scale, CutoffThreshold, BinaryValue and Flags were taken from the FSR2 demo project.
         /// </summary>
-        public class GenerateReactiveDescription
+        public struct GenerateReactiveDescription
         {
             public ResourceView ColorOpaqueOnly;
             public ResourceView ColorPreUpscale;
             public ResourceView OutReactive;
             public Vector2Int RenderSize;
-            public float Scale = 0.5f;
-            public float CutoffThreshold = 0.2f;
-            public float BinaryValue = 0.9f;
-            public GenerateReactiveFlags Flags = GenerateReactiveFlags.ApplyTonemap | GenerateReactiveFlags.ApplyThreshold | GenerateReactiveFlags.UseComponentsMax;
+            public float Scale;
+            public float CutoffThreshold;
+            public float BinaryValue;
+            public GenerateReactiveFlags Flags;
+            
+            public static readonly GenerateReactiveDescription Default = new GenerateReactiveDescription
+            {
+                Scale = 0.5f,
+                CutoffThreshold = 0.2f,
+                BinaryValue = 0.9f,
+                Flags = GenerateReactiveFlags.ApplyTonemap | GenerateReactiveFlags.ApplyThreshold | GenerateReactiveFlags.UseComponentsMax,
+            };
         }
 
         [Flags]
@@ -259,9 +227,7 @@ namespace FidelityFX.FSR2
         [Serializable, StructLayout(LayoutKind.Sequential)]
         internal struct SpdConstants
         {
-            public uint mips;
-            public uint numWorkGroups;
-            public uint workGroupOffsetX, workGroupOffsetY;
+            public FfxSpd.SpdConstants spd;
             public uint renderSizeX, renderSizeY;
         }
 

Runtime/FSR2/Fsr2Context.cs

@@ -19,8 +19,8 @@
 // THE SOFTWARE.
 
 using System;
-using System.Runtime.InteropServices;
 using UnityEngine;
+using UnityEngine.Profiling;
 using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR2
@@ -31,64 +31,52 @@ namespace FidelityFX.FSR2
     /// Note that this class does not know anything about Unity render pipelines; all it knows is CommandBuffers and RenderTargetIdentifiers.
     /// This should make it suitable for integration with any of the available Unity render pipelines.
     /// </summary>
-    public class Fsr2Context
+    public class Fsr2Context: FfxContextBase
     {
         private const int MaxQueuedFrames = 16;
         
         private Fsr2.ContextDescription _contextDescription;
         private CommandBuffer _commandBuffer;
         
-        private Fsr2Pass _computeLuminancePyramidPass;
-        private Fsr2Pass _reconstructPreviousDepthPass;
-        private Fsr2Pass _depthClipPass;
-        private Fsr2Pass _lockPass;
-        private Fsr2Pass _accumulatePass;
-        private Fsr2Pass _sharpenPass;
-        private Fsr2Pass _generateReactivePass;
-        private Fsr2Pass _tcrAutogeneratePass;
+        private Fsr2ComputeLuminancePyramidPass _computeLuminancePyramidPass;
+        private Fsr2ReconstructPreviousDepthPass _reconstructPreviousDepthPass;
+        private Fsr2DepthClipPass _depthClipPass;
+        private Fsr2LockPass _lockPass;
+        private Fsr2AccumulatePass _accumulatePass;
+        private Fsr2SharpenPass _sharpenPass;
+        private Fsr2GenerateReactivePass _generateReactivePass;
+        private Fsr2TcrAutogeneratePass _tcrAutogeneratePass;
 
         private readonly Fsr2Resources _resources = new Fsr2Resources();
 
-        private ComputeBuffer _upscalerConstantsBuffer;
-        private readonly Fsr2.UpscalerConstants[] _upscalerConstantsArray = { new Fsr2.UpscalerConstants() };
-        private ref Fsr2.UpscalerConstants UpscalerConsts => ref _upscalerConstantsArray[0];
-
-        private ComputeBuffer _spdConstantsBuffer;
-        private readonly Fsr2.SpdConstants[] _spdConstantsArray = { new Fsr2.SpdConstants() };
-        private ref Fsr2.SpdConstants SpdConsts => ref _spdConstantsArray[0];
-    
-        private ComputeBuffer _rcasConstantsBuffer;
-        private readonly Fsr2.RcasConstants[] _rcasConstantsArray = new Fsr2.RcasConstants[1];
-        private ref Fsr2.RcasConstants RcasConsts => ref _rcasConstantsArray[0];
-
-        private ComputeBuffer _generateReactiveConstantsBuffer;
-        private readonly Fsr2.GenerateReactiveConstants[] _generateReactiveConstantsArray = { new Fsr2.GenerateReactiveConstants() };
-        private ref Fsr2.GenerateReactiveConstants GenReactiveConsts => ref _generateReactiveConstantsArray[0];
-
-        private ComputeBuffer _tcrAutogenerateConstantsBuffer;
-        private readonly Fsr2.GenerateReactiveConstants2[] _tcrAutogenerateConstantsArray = { new Fsr2.GenerateReactiveConstants2() };
-        private ref Fsr2.GenerateReactiveConstants2 TcrAutoGenConsts => ref _tcrAutogenerateConstantsArray[0];
+        private readonly ConstantsBuffer<Fsr2.UpscalerConstants> _upscalerConstants = new ConstantsBuffer<Fsr2.UpscalerConstants>();
+        private readonly ConstantsBuffer<Fsr2.SpdConstants> _spdConstants = new ConstantsBuffer<Fsr2.SpdConstants>();
+        private readonly ConstantsBuffer<Fsr2.RcasConstants> _rcasConstants = new ConstantsBuffer<Fsr2.RcasConstants>();
+        private readonly ConstantsBuffer<Fsr2.GenerateReactiveConstants> _generateReactiveConstants = new ConstantsBuffer<Fsr2.GenerateReactiveConstants>();
+        private readonly ConstantsBuffer<Fsr2.GenerateReactiveConstants2> _tcrAutogenerateConstants = new ConstantsBuffer<Fsr2.GenerateReactiveConstants2>();
         
         private bool _firstExecution;
         private Vector2 _previousJitterOffset;
         private int _resourceFrameIndex;
         
-        public void Create(Fsr2.ContextDescription contextDescription)
+        private readonly CustomSampler _sampler = CustomSampler.Create("FSR2");
+
+        public void Create(in Fsr2.ContextDescription contextDescription)
         {
             _contextDescription = contextDescription;
             _commandBuffer = new CommandBuffer { name = "FSR2" };
             
-            _upscalerConstantsBuffer = CreateConstantBuffer<Fsr2.UpscalerConstants>();
-            _spdConstantsBuffer = CreateConstantBuffer<Fsr2.SpdConstants>();
-            _rcasConstantsBuffer = CreateConstantBuffer<Fsr2.RcasConstants>();
-            _generateReactiveConstantsBuffer = CreateConstantBuffer<Fsr2.GenerateReactiveConstants>();
-            _tcrAutogenerateConstantsBuffer = CreateConstantBuffer<Fsr2.GenerateReactiveConstants2>();
+            _upscalerConstants.Create();
+            _spdConstants.Create();
+            _rcasConstants.Create();
+            _generateReactiveConstants.Create();
+            _tcrAutogenerateConstants.Create();
 
             // Set defaults
             _firstExecution = true;
             _resourceFrameIndex = 0;
             
-            UpscalerConsts.displaySize = _contextDescription.DisplaySize;
+            _upscalerConstants.Value.displaySize = _contextDescription.DisplaySize;
             
             _resources.Create(_contextDescription);
             CreatePasses();
@@ -96,14 +84,14 @@ namespace FidelityFX.FSR2
 
         private void CreatePasses()
         {
-            _computeLuminancePyramidPass = new Fsr2ComputeLuminancePyramidPass(_contextDescription, _resources, _upscalerConstantsBuffer, _spdConstantsBuffer);
-            _reconstructPreviousDepthPass = new Fsr2ReconstructPreviousDepthPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _depthClipPass = new Fsr2DepthClipPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _lockPass = new Fsr2LockPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _accumulatePass = new Fsr2AccumulatePass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _sharpenPass = new Fsr2SharpenPass(_contextDescription, _resources, _upscalerConstantsBuffer, _rcasConstantsBuffer);
-            _generateReactivePass = new Fsr2GenerateReactivePass(_contextDescription, _resources, _generateReactiveConstantsBuffer);
-            _tcrAutogeneratePass = new Fsr2TcrAutogeneratePass(_contextDescription, _resources, _upscalerConstantsBuffer, _tcrAutogenerateConstantsBuffer);
+            _computeLuminancePyramidPass = new Fsr2ComputeLuminancePyramidPass(_contextDescription, _resources, _upscalerConstants, _spdConstants);
+            _reconstructPreviousDepthPass = new Fsr2ReconstructPreviousDepthPass(_contextDescription, _resources, _upscalerConstants);
+            _depthClipPass = new Fsr2DepthClipPass(_contextDescription, _resources, _upscalerConstants);
+            _lockPass = new Fsr2LockPass(_contextDescription, _resources, _upscalerConstants);
+            _accumulatePass = new Fsr2AccumulatePass(_contextDescription, _resources, _upscalerConstants);
+            _sharpenPass = new Fsr2SharpenPass(_contextDescription, _resources, _upscalerConstants, _rcasConstants);
+            _generateReactivePass = new Fsr2GenerateReactivePass(_contextDescription, _resources, _generateReactiveConstants);
+            _tcrAutogeneratePass = new Fsr2TcrAutogeneratePass(_contextDescription, _resources, _upscalerConstants, _tcrAutogenerateConstants);
         }
         
         public void Destroy()
@@ -119,11 +107,11 @@ namespace FidelityFX.FSR2
             
             _resources.Destroy();
             
-            DestroyConstantBuffer(ref _tcrAutogenerateConstantsBuffer);
-            DestroyConstantBuffer(ref _generateReactiveConstantsBuffer);
-            DestroyConstantBuffer(ref _rcasConstantsBuffer);
-            DestroyConstantBuffer(ref _spdConstantsBuffer);
-            DestroyConstantBuffer(ref _upscalerConstantsBuffer);
+            _tcrAutogenerateConstants.Destroy();
+            _generateReactiveConstants.Destroy();
+            _rcasConstants.Destroy();
+            _spdConstants.Destroy();
+            _upscalerConstants.Destroy();
 
             if (_commandBuffer != null)
             {
@@ -132,7 +120,7 @@ namespace FidelityFX.FSR2
             }
         }
 
-        public void Dispatch(Fsr2.DispatchDescription dispatchParams)
+        public void Dispatch(in Fsr2.DispatchDescription dispatchParams)
         {
             _commandBuffer.Clear();
             Dispatch(dispatchParams, _commandBuffer);
@@ -141,13 +129,15 @@ namespace FidelityFX.FSR2
         
         public void Dispatch(Fsr2.DispatchDescription dispatchParams, CommandBuffer commandBuffer)
         {
+            commandBuffer.BeginSample(_sampler);
+            
             if ((_contextDescription.Flags & Fsr2.InitializationFlags.EnableDebugChecking) != 0)
             {
                 DebugCheckDispatch(dispatchParams);
             }
             
             if (dispatchParams.UseTextureArrays)
-                commandBuffer.EnableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+                commandBuffer.EnableShaderKeyword("UNITY_FFX_TEXTURE2D_X_ARRAY");
             
             if (_firstExecution)
             {
@@ -157,7 +147,7 @@ namespace FidelityFX.FSR2
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
             }
             
-            int frameIndex = _resourceFrameIndex % 2;
+            int bufferIndex = _resourceFrameIndex % 2;
             bool resetAccumulation = dispatchParams.Reset || _firstExecution;
             _firstExecution = false;
 
@@ -176,7 +166,7 @@ namespace FidelityFX.FSR2
                 if (resetAccumulation)
                 {
                     RenderTargetIdentifier opaqueOnly = dispatchParams.ColorOpaqueOnly.IsValid ? dispatchParams.ColorOpaqueOnly.RenderTarget : Fsr2ShaderIDs.SrvOpaqueOnly;
-                    commandBuffer.Blit(_resources.PrevPreAlpha[frameIndex ^ 1], opaqueOnly);
+                    commandBuffer.Blit(_resources.PrevPreAlpha[bufferIndex ^ 1], opaqueOnly);
                 }
             }
             else if (_resources.AutoReactive != null)
@@ -187,24 +177,24 @@ namespace FidelityFX.FSR2
             
             if (!dispatchParams.Reactive.IsValid) dispatchParams.Reactive = new ResourceView(_resources.DefaultReactive);
             if (!dispatchParams.TransparencyAndComposition.IsValid) dispatchParams.TransparencyAndComposition = new ResourceView(_resources.DefaultReactive);
-            Fsr2Resources.CreateAliasableResources(commandBuffer, _contextDescription, dispatchParams);
+            Fsr2Resources.CreateAliasableResources(commandBuffer, _contextDescription);
             
             SetupConstants(dispatchParams, resetAccumulation);
             
             // Reactive mask bias
             const int threadGroupWorkRegionDim = 8;
-            int dispatchSrcX = (UpscalerConsts.renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchSrcY = (UpscalerConsts.renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchSrcX = (_upscalerConstants.Value.renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchSrcY = (_upscalerConstants.Value.renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchDstX = (_contextDescription.DisplaySize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchDstY = (_contextDescription.DisplaySize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
             // Clear reconstructed depth for max depth store
             if (resetAccumulation)
             {
-                commandBuffer.SetRenderTarget(_resources.LockStatus[frameIndex ^ 1]);
+                commandBuffer.SetRenderTarget(_resources.LockStatus[bufferIndex ^ 1]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
                 
-                commandBuffer.SetRenderTarget(_resources.InternalUpscaled[frameIndex ^ 1]);
+                commandBuffer.SetRenderTarget(_resources.InternalUpscaled[bufferIndex ^ 1]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
                 
                 commandBuffer.SetRenderTarget(_resources.SceneLuminance);
@@ -220,7 +210,7 @@ namespace FidelityFX.FSR2
             }
             
             // FSR3: need to clear here since we need the content of this surface for frame interpolation, so clearing in the lock pass is not an option
-            bool depthInverted = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInverted) == Fsr2.InitializationFlags.EnableDepthInverted;
+            bool depthInverted = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0;
             commandBuffer.SetRenderTarget(Fsr2ShaderIDs.UavReconstructedPrevNearestDepth);
             commandBuffer.ClearRenderTarget(false, true, depthInverted ? Color.clear : Color.white);
             
@@ -228,92 +218,95 @@ namespace FidelityFX.FSR2
             SetupSpdConstants(dispatchParams, out var dispatchThreadGroupCount);
             
             // Initialize constant buffers data
-            commandBuffer.SetBufferData(_upscalerConstantsBuffer, _upscalerConstantsArray);
-            commandBuffer.SetBufferData(_spdConstantsBuffer, _spdConstantsArray);
+            _upscalerConstants.UpdateBufferData(commandBuffer);
+            _spdConstants.UpdateBufferData(commandBuffer);
 
             // Auto reactive
             if (dispatchParams.EnableAutoReactive)
             {
-                GenerateTransparencyCompositionReactive(dispatchParams, commandBuffer, frameIndex);
+                GenerateTransparencyCompositionReactive(dispatchParams, commandBuffer, bufferIndex);
                 dispatchParams.Reactive = new ResourceView(_resources.AutoReactive);
                 dispatchParams.TransparencyAndComposition = new ResourceView(_resources.AutoComposition);
             }
             
             // Compute luminance pyramid
-            _computeLuminancePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+            _computeLuminancePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
 
             // Reconstruct previous depth
-            _reconstructPreviousDepthPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _reconstructPreviousDepthPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
 
             // Depth clip
-            _depthClipPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _depthClipPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
 
             // Create locks
-            _lockPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _lockPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
 
             // Accumulate
-            _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
+            _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchDstX, dispatchDstY);
 
             if (dispatchParams.EnableSharpening)
             {
                 // Compute the constants
                 SetupRcasConstants(dispatchParams);
-                commandBuffer.SetBufferData(_rcasConstantsBuffer, _rcasConstantsArray);
+                _rcasConstants.UpdateBufferData(commandBuffer);
                 
                 // Dispatch RCAS
                 const int threadGroupWorkRegionDimRcas = 16;
                 int threadGroupsX = (Screen.width + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
                 int threadGroupsY = (Screen.height + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
-                _sharpenPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, threadGroupsX, threadGroupsY);
+                _sharpenPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, threadGroupsX, threadGroupsY);
             }
 
             _resourceFrameIndex = (_resourceFrameIndex + 1) % MaxQueuedFrames;
 
             Fsr2Resources.DestroyAliasableResources(commandBuffer);
             
-            commandBuffer.DisableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+            commandBuffer.DisableShaderKeyword("UNITY_FFX_TEXTURE2D_X_ARRAY");
+            commandBuffer.EndSample(_sampler);
         }
 
-        public void GenerateReactiveMask(Fsr2.GenerateReactiveDescription dispatchParams)
+        public void GenerateReactiveMask(in Fsr2.GenerateReactiveDescription dispatchParams)
         {
             _commandBuffer.Clear();
             GenerateReactiveMask(dispatchParams, _commandBuffer);
             Graphics.ExecuteCommandBuffer(_commandBuffer);
         }
 
-        public void GenerateReactiveMask(Fsr2.GenerateReactiveDescription dispatchParams, CommandBuffer commandBuffer)
+        public void GenerateReactiveMask(in Fsr2.GenerateReactiveDescription dispatchParams, CommandBuffer commandBuffer)
         {
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (dispatchParams.RenderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (dispatchParams.RenderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
-            GenReactiveConsts.scale = dispatchParams.Scale;
-            GenReactiveConsts.threshold = dispatchParams.CutoffThreshold;
-            GenReactiveConsts.binaryValue = dispatchParams.BinaryValue;
-            GenReactiveConsts.flags = (uint)dispatchParams.Flags;
-            commandBuffer.SetBufferData(_generateReactiveConstantsBuffer, _generateReactiveConstantsArray);
+            ref var genReactiveConsts = ref _generateReactiveConstants.Value;
+            genReactiveConsts.scale = dispatchParams.Scale;
+            genReactiveConsts.threshold = dispatchParams.CutoffThreshold;
+            genReactiveConsts.binaryValue = dispatchParams.BinaryValue;
+            genReactiveConsts.flags = (uint)dispatchParams.Flags;
+            _generateReactiveConstants.UpdateBufferData(commandBuffer);
             
-            ((Fsr2GenerateReactivePass)_generateReactivePass).ScheduleDispatch(commandBuffer, dispatchParams, dispatchSrcX, dispatchSrcY);
+            _generateReactivePass.ScheduleDispatch(commandBuffer, dispatchParams, dispatchSrcX, dispatchSrcY);
         }
 
-        private void GenerateTransparencyCompositionReactive(Fsr2.DispatchDescription dispatchParams, CommandBuffer commandBuffer, int frameIndex)
+        private void GenerateTransparencyCompositionReactive(in Fsr2.DispatchDescription dispatchParams, CommandBuffer commandBuffer, int bufferIndex)
         {
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (dispatchParams.RenderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (dispatchParams.RenderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
-            TcrAutoGenConsts.autoTcThreshold = dispatchParams.AutoTcThreshold;
-            TcrAutoGenConsts.autoTcScale = dispatchParams.AutoTcScale;
-            TcrAutoGenConsts.autoReactiveScale = dispatchParams.AutoReactiveScale;
-            TcrAutoGenConsts.autoReactiveMax = dispatchParams.AutoReactiveMax;
-            commandBuffer.SetBufferData(_tcrAutogenerateConstantsBuffer, _tcrAutogenerateConstantsArray);
+            ref var tcrAutoGenConsts = ref _tcrAutogenerateConstants.Value;
+            tcrAutoGenConsts.autoTcThreshold = dispatchParams.AutoTcThreshold;
+            tcrAutoGenConsts.autoTcScale = dispatchParams.AutoTcScale;
+            tcrAutoGenConsts.autoReactiveScale = dispatchParams.AutoReactiveScale;
+            tcrAutoGenConsts.autoReactiveMax = dispatchParams.AutoReactiveMax;
+            _tcrAutogenerateConstants.UpdateBufferData(commandBuffer);
             
-            _tcrAutogeneratePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _tcrAutogeneratePass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
         }
 
-        private void SetupConstants(Fsr2.DispatchDescription dispatchParams, bool resetAccumulation)
+        private void SetupConstants(in Fsr2.DispatchDescription dispatchParams, bool resetAccumulation)
         {
-            ref Fsr2.UpscalerConstants constants = ref UpscalerConsts;
+            ref Fsr2.UpscalerConstants constants = ref _upscalerConstants.Value;
             
             constants.jitterOffset = dispatchParams.JitterOffset;
             constants.renderSize = dispatchParams.RenderSize;
@@ -327,7 +320,10 @@ namespace FidelityFX.FSR2
             constants.viewSpaceToMetersFactor = (dispatchParams.ViewSpaceToMetersFactor > 0.0f) ? dispatchParams.ViewSpaceToMetersFactor : 1.0f;
 
             // Compute params to enable device depth to view space depth computation in shader
-            constants.deviceToViewDepth = SetupDeviceDepthToViewSpaceDepthParams(dispatchParams);
+            bool inverted = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0;
+            bool infinite = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInfinite) != 0;
+            constants.deviceToViewDepth = FfxUtils.SetupDeviceDepthToViewSpaceDepthParams(
+                dispatchParams.RenderSize, dispatchParams.CameraNear, dispatchParams.CameraFar, dispatchParams.CameraFovAngleVertical, inverted, infinite);
             
             // To be updated if resource is larger than the actual image size
             constants.downscaleFactor = new Vector2((float)constants.renderSize.x / _contextDescription.DisplaySize.x, (float)constants.renderSize.y / _contextDescription.DisplaySize.y);
@@ -345,7 +341,7 @@ namespace FidelityFX.FSR2
                 _previousJitterOffset = constants.jitterOffset;
             }
 
-            int jitterPhaseCount = Fsr2.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.DisplaySize.x);
+            int jitterPhaseCount = FfxUtils.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.DisplaySize.x);
             if (resetAccumulation || constants.jitterPhaseCount == 0)
             {
                 constants.jitterPhaseCount = jitterPhaseCount;
@@ -375,78 +371,22 @@ namespace FidelityFX.FSR2
             constants.lumaMipDimensions.y = (int)(constants.maxRenderSize.y / mipDiv);
         }
 
-        private Vector4 SetupDeviceDepthToViewSpaceDepthParams(Fsr2.DispatchDescription dispatchParams)
-        {
-            bool inverted = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0;
-            bool infinite = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInfinite) != 0;
-
-            // make sure it has no impact if near and far plane values are swapped in dispatch params
-            // the flags "inverted" and "infinite" will decide what transform to use
-            float min = Mathf.Min(dispatchParams.CameraNear, dispatchParams.CameraFar);
-            float max = Mathf.Max(dispatchParams.CameraNear, dispatchParams.CameraFar);
-
-            if (inverted)
-            {
-                (min, max) = (max, min);
-            }
-
-            float q = max / (min - max);
-            float d = -1.0f;
-
-            Vector4 matrixElemC = new Vector4(q, -1.0f - Mathf.Epsilon, q, 0.0f + Mathf.Epsilon);
-            Vector4 matrixElemE = new Vector4(q * min, -min - Mathf.Epsilon, q * min, max);
-            
-            // Revert x and y coords
-            float aspect = (float)dispatchParams.RenderSize.x / dispatchParams.RenderSize.y;
-            float cotHalfFovY = Mathf.Cos(0.5f * dispatchParams.CameraFovAngleVertical) / Mathf.Sin(0.5f * dispatchParams.CameraFovAngleVertical);
-
-            int matrixIndex = (inverted ? 2 : 0) + (infinite ? 1 : 0);
-            return new Vector4(
-                d * matrixElemC[matrixIndex],
-                matrixElemE[matrixIndex],
-                aspect / cotHalfFovY,
-                1.0f / cotHalfFovY);
-        }
-
-        private void SetupRcasConstants(Fsr2.DispatchDescription dispatchParams)
+        private void SetupRcasConstants(in Fsr2.DispatchDescription dispatchParams)
         {
             int sharpnessIndex = Mathf.RoundToInt(Mathf.Clamp01(dispatchParams.Sharpness) * (RcasConfigs.Length - 1));
-            RcasConsts = RcasConfigs[sharpnessIndex];
+            _rcasConstants.Value = RcasConfigs[sharpnessIndex];
         }
 
-        private void SetupSpdConstants(Fsr2.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
+        private void SetupSpdConstants(in Fsr2.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
         {
-            RectInt rectInfo = new RectInt(0, 0, dispatchParams.RenderSize.x, dispatchParams.RenderSize.y);
-            SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
-            
             // Downsample
-            ref Fsr2.SpdConstants spdConstants = ref SpdConsts;
-            spdConstants.numWorkGroups = (uint)numWorkGroupsAndMips.x;
-            spdConstants.mips = (uint)numWorkGroupsAndMips.y;
-            spdConstants.workGroupOffsetX = (uint)workGroupOffset.x;
-            spdConstants.workGroupOffsetY = (uint)workGroupOffset.y;
+            ref Fsr2.SpdConstants spdConstants = ref _spdConstants.Value;
+            FfxSpd.SetupSpdConstants(dispatchParams.RenderSize, ref spdConstants.spd, out dispatchThreadGroupCount);
             spdConstants.renderSizeX = (uint)dispatchParams.RenderSize.x;
             spdConstants.renderSizeY = (uint)dispatchParams.RenderSize.y;
         }
 
-        private static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
-        {
-            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
-
-            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
-            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
-
-            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
-
-            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
-            if (mips < 0)
-            {
-                float resolution = Math.Max(rectInfo.width, rectInfo.height);
-                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
-            }
-        }
-
-        private void DebugCheckDispatch(Fsr2.DispatchDescription dispatchParams)
+        private void DebugCheckDispatch(in Fsr2.DispatchDescription dispatchParams)
         {
             if (!dispatchParams.Color.IsValid)
             {
@@ -591,28 +531,5 @@ namespace FidelityFX.FSR2
             new Fsr2.RcasConstants(1064229695u, 997604214u),
             new Fsr2.RcasConstants(1065353216u, 1006648320),
         };
-        
-        private static ComputeBuffer CreateConstantBuffer<TConstants>() where TConstants: struct
-        {
-            return new ComputeBuffer(1, Marshal.SizeOf<TConstants>(), ComputeBufferType.Constant);
-        }
-        
-        private static void DestroyConstantBuffer(ref ComputeBuffer bufferRef)
-        {
-            if (bufferRef == null)
-                return;
-            
-            bufferRef.Release();
-            bufferRef = null;
-        }
-
-        private static void DestroyPass(ref Fsr2Pass pass)
-        {
-            if (pass == null)
-                return;
-            
-            pass.Dispose();
-            pass = null;
-        }
     }
 }

Runtime/FSR2/Fsr2Pass.cs

@@ -18,10 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System;
-using System.Runtime.InteropServices;
 using UnityEngine;
-using UnityEngine.Profiling;
 using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR2
@@ -31,55 +28,32 @@ namespace FidelityFX.FSR2
     /// This loosely matches the FfxPipelineState struct from the original FSR2 codebase, wrapped in an object-oriented blanket.
     /// These classes are responsible for loading compute shaders, managing temporary resources, binding resources to shader kernels and dispatching said shaders.
     /// </summary>
-    internal abstract class Fsr2Pass: IDisposable
+    internal abstract class Fsr2Pass: FfxPassWithFlags<Fsr2.InitializationFlags>
     {
         internal const int ShadingChangeMipLevel = 4;   // This matches the FFX_FSR2_SHADING_CHANGE_MIP_LEVEL define
 
-        protected readonly Fsr2.ContextDescription ContextDescription;
         protected readonly Fsr2Resources Resources;
         protected readonly ComputeBuffer Constants;
         
-        protected ComputeShader ComputeShader;
-        protected int KernelIndex;
-        
-        protected CustomSampler Sampler;
-        
-        protected Fsr2Pass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+        protected Fsr2Pass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+            : base("FSR2", contextDescription.Flags)
         {
-            ContextDescription = contextDescription;
             Resources = resources;
             Constants = constants;
         }
         
-        public virtual void Dispose()
+        public void ScheduleDispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ = 1)
         {
-        }
-        
-        public void ScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
-        {
-            commandBuffer.BeginSample(Sampler);
-            DoScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchX, dispatchY);
-            commandBuffer.EndSample(Sampler);
-        }
-
-        protected abstract void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY);
-
-        protected void InitComputeShader(string passName, ComputeShader shader)
+            using (ProfilerSample(commandBuffer))
             {
-            InitComputeShader(passName, shader, ContextDescription.Flags);
+                Dispatch(commandBuffer, dispatchParams, bufferIndex, dispatchX, dispatchY, dispatchZ);
             }
-        
-        private void InitComputeShader(string passName, ComputeShader shader, Fsr2.InitializationFlags flags)
-        {
-            if (shader == null)
-            {
-                throw new MissingReferenceException($"Shader for FSR2 pass '{passName}' could not be loaded! Please ensure it is included in the project correctly.");
         }
 
-            ComputeShader = shader;
-            KernelIndex = ComputeShader.FindKernel("CS");
-            Sampler = CustomSampler.Create(passName);
+        protected abstract void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ);
         
+        protected override void SetupShaderKeywords()
+        {
             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)
@@ -89,20 +63,20 @@ namespace FidelityFX.FSR2
 #endif
             
             // This matches the permutation rules from the CreatePipeline* functions
-            if ((flags & Fsr2.InitializationFlags.EnableHighDynamicRange) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_HDR_COLOR_INPUT");
-            if ((flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS");
-            if ((flags & Fsr2.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS");
-            if ((flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_INVERTED_DEPTH");
+            if ((Flags & Fsr2.InitializationFlags.EnableHighDynamicRange) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_HDR_COLOR_INPUT");
+            if ((Flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS");
+            if ((Flags & Fsr2.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS");
+            if ((Flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_INVERTED_DEPTH");
             if (useLut) ComputeShader.EnableKeyword("FFX_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE");
-            if ((flags & Fsr2.InitializationFlags.EnableFP16Usage) != 0) ComputeShader.EnableKeyword("FFX_HALF");
+            if ((Flags & Fsr2.InitializationFlags.EnableFP16Usage) != 0) ComputeShader.EnableKeyword("FFX_HALF");
         }
     }
 
-    internal class Fsr2ComputeLuminancePyramidPass : Fsr2Pass
+    internal sealed class Fsr2ComputeLuminancePyramidPass : Fsr2Pass
     {
         private readonly ComputeBuffer _spdConstants;
         
-        public Fsr2ComputeLuminancePyramidPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
+        public Fsr2ComputeLuminancePyramidPass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
             : base(contextDescription, resources, constants)
         {
             _spdConstants = spdConstants;
@@ -110,104 +84,91 @@ namespace FidelityFX.FSR2
             InitComputeShader("Compute Luminance Pyramid", contextDescription.Shaders.computeLuminancePyramidPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, dispatchParams.Color);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavSpdAtomicCount, Resources.SpdAtomicCounter);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavExposureMipLumaChange, Resources.SceneLuminance, ShadingChangeMipLevel);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavExposureMip5, Resources.SceneLuminance, 5);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavExposureMipLumaChange, Resources.SceneLuminance, ShadingChangeMipLevel);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavExposureMip5, Resources.SceneLuminance, 5);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavAutoExposure, Resources.AutoExposure);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbSpd, _spdConstants, 0, Marshal.SizeOf<Fsr2.SpdConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.SpdConstants>(ComputeShader, Fsr2ShaderIDs.CbSpd, _spdConstants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr2ReconstructPreviousDepthPass : Fsr2Pass
+    internal sealed class Fsr2ReconstructPreviousDepthPass : Fsr2Pass
     {
-        public Fsr2ReconstructPreviousDepthPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+        public Fsr2ReconstructPreviousDepthPass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Reconstruct & Dilate", contextDescription.Shaders.reconstructPreviousDepthPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            ref var depth = ref dispatchParams.Depth;
-            ref var motionVectors = ref dispatchParams.MotionVectors;
-            ref var exposure = ref dispatchParams.Exposure;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputDepth, depth.RenderTarget, depth.MipLevel, depth.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, dispatchParams.Color);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputDepth, dispatchParams.Depth);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
 
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[bufferIndex]);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
     
-    internal class Fsr2DepthClipPass : Fsr2Pass
+    internal sealed class Fsr2DepthClipPass : Fsr2Pass
     {
-        public Fsr2DepthClipPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+        public Fsr2DepthClipPass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Depth Clip", contextDescription.Shaders.depthClipPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            ref var depth = ref dispatchParams.Depth;
-            ref var motionVectors = ref dispatchParams.MotionVectors;
-            ref var exposure = ref dispatchParams.Exposure;
-            ref var reactive = ref dispatchParams.Reactive;
-            ref var tac = ref dispatchParams.TransparencyAndComposition;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputDepth, depth.RenderTarget, depth.MipLevel, depth.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReactiveMask, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvTransparencyAndCompositionMask, tac.RenderTarget, tac.MipLevel, tac.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, dispatchParams.Color);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputDepth, dispatchParams.Depth);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReactiveMask, dispatchParams.Reactive);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvTransparencyAndCompositionMask, dispatchParams.TransparencyAndComposition);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReconstructedPrevNearestDepth, Fsr2ShaderIDs.UavReconstructedPrevNearestDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[bufferIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedDepth, Fsr2ShaderIDs.UavDilatedDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevDilatedMotionVectors, Resources.DilatedMotionVectors[bufferIndex ^ 1]);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr2LockPass : Fsr2Pass
+    internal sealed class Fsr2LockPass : Fsr2Pass
     {
-        public Fsr2LockPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+        public Fsr2LockPass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Create Locks", contextDescription.Shaders.lockPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLockInputLuma, Fsr2ShaderIDs.UavLockInputLuma);
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
     
-    internal class Fsr2AccumulatePass : Fsr2Pass
+    internal sealed class Fsr2AccumulatePass : Fsr2Pass
     {
         private const string SharpeningKeyword = "FFX_FSR2_OPTION_APPLY_SHARPENING";
     
@@ -215,7 +176,7 @@ namespace FidelityFX.FSR2
         private readonly LocalKeyword _sharpeningKeyword;
 #endif
         
-        public Fsr2AccumulatePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+        public Fsr2AccumulatePass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Reproject & Accumulate", contextDescription.Shaders.accumulatePass);
@@ -224,7 +185,7 @@ namespace FidelityFX.FSR2
 #endif
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
 #if UNITY_2021_2_OR_NEWER
             if (dispatchParams.EnableSharpening)
@@ -238,47 +199,44 @@ namespace FidelityFX.FSR2
                 commandBuffer.DisableShaderKeyword(SharpeningKeyword);
 #endif
             
-            if ((ContextDescription.Flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
+            if ((Flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
             {
-                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[bufferIndex]);
             }
             else
             {
-                ref var motionVectors = ref dispatchParams.MotionVectors;
-                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
             }
 
-            ref var exposure = ref dispatchParams.Exposure;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedReactiveMasks, Fsr2ShaderIDs.UavDilatedReactiveMasks);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLockStatus, Resources.LockStatus[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[bufferIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLockStatus, Resources.LockStatus[bufferIndex ^ 1]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPreparedInputColor, Fsr2ShaderIDs.UavPreparedInputColor);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLanczosLut, Resources.LanczosLut);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvUpscaleMaximumBiasLut, Resources.MaximumBiasLut);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvSceneLuminanceMips, Resources.SceneLuminance);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvAutoExposure, Resources.AutoExposure);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLumaHistory, Resources.LumaHistory[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLumaHistory, Resources.LumaHistory[bufferIndex ^ 1]);
 
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLockStatus, Resources.LockStatus[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLumaHistory, Resources.LumaHistory[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLockStatus, Resources.LockStatus[bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLumaHistory, Resources.LumaHistory[bufferIndex]);
             
-            ref var output = ref dispatchParams.Output;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, dispatchParams.Output);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr2SharpenPass : Fsr2Pass
+    internal sealed class Fsr2SharpenPass : Fsr2Pass
     {
         private readonly ComputeBuffer _rcasConstants;
 
-        public Fsr2SharpenPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer rcasConstants)
+        public Fsr2SharpenPass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer rcasConstants)
             : base(contextDescription, resources, constants)
         {
             _rcasConstants = rcasConstants;
@@ -286,27 +244,25 @@ namespace FidelityFX.FSR2
             InitComputeShader("RCAS Sharpening", contextDescription.Shaders.sharpenPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvRcasInput, Resources.InternalUpscaled[frameIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvRcasInput, Resources.InternalUpscaled[bufferIndex]);
             
-            ref var output = ref dispatchParams.Output;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, dispatchParams.Output);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbRcas, _rcasConstants, 0, Marshal.SizeOf<Fsr2.RcasConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.RcasConstants>(ComputeShader, Fsr2ShaderIDs.CbRcas, _rcasConstants);
 
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr2GenerateReactivePass : Fsr2Pass
+    internal sealed class Fsr2GenerateReactivePass : Fsr2Pass
     {
         private readonly ComputeBuffer _generateReactiveConstants;
 
-        public Fsr2GenerateReactivePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer generateReactiveConstants)
+        public Fsr2GenerateReactivePass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer generateReactiveConstants)
             : base(contextDescription, resources, null)
         {
             _generateReactiveConstants = generateReactiveConstants;
@@ -314,35 +270,30 @@ namespace FidelityFX.FSR2
             InitComputeShader("Auto-Generate Reactive Mask", contextDescription.Shaders.autoGenReactivePass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
         }
 
-        public void ScheduleDispatch(CommandBuffer commandBuffer, Fsr2.GenerateReactiveDescription dispatchParams, int dispatchX, int dispatchY)
+        public void ScheduleDispatch(CommandBuffer commandBuffer, in Fsr2.GenerateReactiveDescription dispatchParams, int dispatchX, int dispatchY)
         {
-            commandBuffer.BeginSample(Sampler);
-            
-            ref var opaqueOnly = ref dispatchParams.ColorOpaqueOnly;
-            ref var color = ref dispatchParams.ColorPreUpscale;
-            ref var reactive = ref dispatchParams.OutReactive;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvOpaqueOnly, opaqueOnly.RenderTarget, opaqueOnly.MipLevel, opaqueOnly.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavAutoReactive, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
+            using (ProfilerSample(commandBuffer))
+            {
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvOpaqueOnly, dispatchParams.ColorOpaqueOnly);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, dispatchParams.ColorPreUpscale);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavAutoReactive, dispatchParams.OutReactive);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _generateReactiveConstants, 0, Marshal.SizeOf<Fsr2.GenerateReactiveConstants>());
+                commandBuffer.SetComputeConstantBufferParam<Fsr2.GenerateReactiveConstants>(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _generateReactiveConstants);
 
                 commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
-            
-            commandBuffer.EndSample(Sampler);
+            }
         }
     }
 
-    internal class Fsr2TcrAutogeneratePass : Fsr2Pass
+    internal sealed class Fsr2TcrAutogeneratePass : Fsr2Pass
     {
         private readonly ComputeBuffer _tcrAutogenerateConstants;
 
-        public Fsr2TcrAutogeneratePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer tcrAutogenerateConstants)
+        public Fsr2TcrAutogeneratePass(in Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer tcrAutogenerateConstants)
             : base(contextDescription, resources, constants)
         {
             _tcrAutogenerateConstants = tcrAutogenerateConstants;
@@ -350,31 +301,25 @@ namespace FidelityFX.FSR2
             InitComputeShader("Auto-Generate Transparency & Composition Mask", contextDescription.Shaders.tcrAutoGenPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr2.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            ref var motionVectors = ref dispatchParams.MotionVectors;
-            ref var opaqueOnly = ref dispatchParams.ColorOpaqueOnly;
-            ref var reactive = ref dispatchParams.Reactive;
-            ref var tac = ref dispatchParams.TransparencyAndComposition;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvOpaqueOnly, opaqueOnly.RenderTarget, opaqueOnly.MipLevel, opaqueOnly.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevColorPreAlpha, Resources.PrevPreAlpha[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevColorPostAlpha, Resources.PrevPostAlpha[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReactiveMask, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvTransparencyAndCompositionMask, tac.RenderTarget, tac.MipLevel, tac.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvOpaqueOnly, dispatchParams.ColorOpaqueOnly);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, dispatchParams.Color);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevColorPreAlpha, Resources.PrevPreAlpha[bufferIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevColorPostAlpha, Resources.PrevPostAlpha[bufferIndex ^ 1]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReactiveMask, dispatchParams.Reactive);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvTransparencyAndCompositionMask, dispatchParams.TransparencyAndComposition);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavAutoReactive, Resources.AutoReactive);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavAutoComposition, Resources.AutoComposition);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavPrevColorPreAlpha, Resources.PrevPreAlpha[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavPrevColorPostAlpha, Resources.PrevPostAlpha[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavPrevColorPreAlpha, Resources.PrevPreAlpha[bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavPrevColorPostAlpha, Resources.PrevPostAlpha[bufferIndex]);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _tcrAutogenerateConstants, 0, Marshal.SizeOf<Fsr2.GenerateReactiveConstants2>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.UpscalerConstants>(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr2.GenerateReactiveConstants2>(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _tcrAutogenerateConstants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 }

Runtime/FSR2/Fsr2Resources.cs

@@ -29,7 +29,7 @@ namespace FidelityFX.FSR2
     /// Helper class for bundling and managing persistent resources required by the FSR2 process.
     /// This includes lookup tables, default fallback resources and double-buffered resources that get swapped between frames.
     /// </summary>
-    internal class Fsr2Resources
+    internal class Fsr2Resources: FfxResourcesBase
     {
         public Texture2D DefaultExposure;
         public Texture2D DefaultReactive;
@@ -47,17 +47,11 @@ namespace FidelityFX.FSR2
         public readonly RenderTexture[] PrevPreAlpha = new RenderTexture[2];
         public readonly RenderTexture[] PrevPostAlpha = new RenderTexture[2];
 
-        public void Create(Fsr2.ContextDescription contextDescription)
+        public void Create(in Fsr2.ContextDescription contextDescription)
         {
             // Generate the data for the LUT
             const int lanczos2LutWidth = 128;
-            float[] lanczos2Weights = new float[lanczos2LutWidth];
-            for (int currentLanczosWidthIndex = 0; currentLanczosWidthIndex < lanczos2LutWidth; ++currentLanczosWidthIndex)
-            {
-                float x = 2.0f * currentLanczosWidthIndex / (lanczos2LutWidth - 1);
-                float y = Fsr2.Lanczos2(x);
-                lanczos2Weights[currentLanczosWidthIndex] = y;
-            }
+            float[] lanczos2Weights = FfxUtils.GenerateLanczos2Table(lanczos2LutWidth);
 
             float[] maximumBias = new float[MaximumBiasTextureWidth * MaximumBiasTextureHeight];
             for (int i = 0; i < maximumBias.Length; ++i)
@@ -67,40 +61,27 @@ namespace FidelityFX.FSR2
 
             // Resource FSR2_LanczosLutData: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R16_SNORM, FFX_RESOURCE_FLAGS_NONE
             // R16_SNorm textures are not supported by Unity on most platforms, strangely enough. So instead we use R32_SFloat and upload pre-normalized float data.
-            LanczosLut = new Texture2D(lanczos2LutWidth, 1, GraphicsFormat.R32_SFloat, TextureCreationFlags.None) { name = "FSR2_LanczosLutData" };
-            LanczosLut.SetPixelData(lanczos2Weights, 0);
-            LanczosLut.Apply();
+            LanczosLut = CreateLookup("FSR2_LanczosLutData", new Vector2Int(lanczos2LutWidth, 1), GraphicsFormat.R32_SFloat, lanczos2Weights);
             
             // Resource FSR2_MaximumUpsampleBias: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R16_SNORM, FFX_RESOURCE_FLAGS_NONE
-            MaximumBiasLut = new Texture2D(MaximumBiasTextureWidth, MaximumBiasTextureHeight, GraphicsFormat.R32_SFloat, TextureCreationFlags.None) { name = "FSR2_MaximumUpsampleBias" };
-            MaximumBiasLut.SetPixelData(maximumBias, 0);
-            MaximumBiasLut.Apply();
+            MaximumBiasLut = CreateLookup("FSR2_MaximumUpsampleBias", new Vector2Int(MaximumBiasTextureWidth, MaximumBiasTextureHeight), GraphicsFormat.R32_SFloat, maximumBias);
             
             // Resource FSR2_DefaultExposure: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R32G32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            DefaultExposure = new Texture2D(1, 1, GraphicsFormat.R32G32_SFloat, TextureCreationFlags.None) { name = "FSR2_DefaultExposure" };
-            DefaultExposure.SetPixel(0, 0, Color.clear);
-            DefaultExposure.Apply();
+            DefaultExposure = CreateLookup("FSR2_DefaultExposure", GraphicsFormat.R32G32_SFloat, Color.clear);
 
             // Resource FSR2_DefaultReactivityMask: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            DefaultReactive = new Texture2D(1, 1, GraphicsFormat.R8_UNorm, TextureCreationFlags.None) { name = "FSR2_DefaultReactivityMask" };
-            DefaultReactive.SetPixel(0, 0, Color.clear);
-            DefaultReactive.Apply();
+            DefaultReactive = CreateLookup("FSR2_DefaultReactivityMask", GraphicsFormat.R8_UNorm, Color.clear);
             
             // Resource FSR2_SpdAtomicCounter: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_UINT, FFX_RESOURCE_FLAGS_ALIASABLE
             // Despite what the original FSR2 codebase says, this resource really isn't aliasable. Resetting this counter to 0 every frame breaks auto-exposure on MacOS Metal.
-            SpdAtomicCounter = new RenderTexture(1, 1, 0, GraphicsFormat.R32_UInt) { name = "FSR2_SpdAtomicCounter", enableRandomWrite = true };
-            SpdAtomicCounter.Create();
+            SpdAtomicCounter = CreateResource("FSR2_SpdAtomicCounter", Vector2Int.one, GraphicsFormat.R32_UInt);
 
             // Resource FSR2_AutoExposure: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32G32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            AutoExposure = new RenderTexture(1, 1, 0, GraphicsFormat.R32G32_SFloat) { name = "FSR2_AutoExposure", enableRandomWrite = true };
-            AutoExposure.Create();
+            AutoExposure = CreateResource("FSR2_AutoExposure", Vector2Int.one, GraphicsFormat.R32G32_SFloat);
             
             // Resource FSR2_ExposureMips: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
             // This is a rather special case: it's an aliasable resource, but because we require a mipmap chain and bind specific mip levels per shader, we can't easily use temporary RTs for this.
-            int w = contextDescription.MaxRenderSize.x / 2, h = contextDescription.MaxRenderSize.y / 2;
-            int mipCount = 1 + Mathf.FloorToInt(Mathf.Log(Math.Max(w, h), 2.0f));
-            SceneLuminance = new RenderTexture(w, h, 0, GraphicsFormat.R16_SFloat, mipCount) { name = "FSR2_ExposureMips", enableRandomWrite = true, useMipMap = true, autoGenerateMips = false };
-            SceneLuminance.Create();
+            SceneLuminance = CreateResourceMips("FSR2_ExposureMips", contextDescription.MaxRenderSize / 2, GraphicsFormat.R16_SFloat);
             
             // Resources FSR2_InternalDilatedVelocity1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16_FLOAT, FFX_RESOURCE_FLAGS_NONE
             CreateDoubleBufferedResource(DilatedMotionVectors, "FSR2_InternalDilatedVelocity", contextDescription.MaxRenderSize, GraphicsFormat.R16G16_SFloat);
@@ -115,15 +96,13 @@ namespace FidelityFX.FSR2
             CreateDoubleBufferedResource(LumaHistory, "FSR2_LumaHistory", contextDescription.DisplaySize, GraphicsFormat.R8G8B8A8_UNorm);
         }
 
-        public void CreateTcrAutogenResources(Fsr2.ContextDescription contextDescription)
+        public void CreateTcrAutogenResources(in Fsr2.ContextDescription contextDescription)
         {
             // Resource FSR2_AutoReactive: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            AutoReactive = new RenderTexture(contextDescription.MaxRenderSize.x, contextDescription.MaxRenderSize.y, 0, GraphicsFormat.R8_UNorm) { name = "FSR2_AutoReactive", enableRandomWrite = true };
-            AutoReactive.Create();
+            AutoReactive = CreateResource("FSR2_AutoReactive", contextDescription.MaxRenderSize, GraphicsFormat.R8_UNorm);
 
             // Resource FSR2_AutoComposition: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            AutoComposition = new RenderTexture(contextDescription.MaxRenderSize.x, contextDescription.MaxRenderSize.y, 0, GraphicsFormat.R8_UNorm) { name = "FSR2_AutoComposition", enableRandomWrite = true };
-            AutoComposition.Create();
+            AutoComposition = CreateResource("FSR2_AutoComposition", contextDescription.MaxRenderSize, GraphicsFormat.R8_UNorm);
 
             // Resources FSR2_PrevPreAlpha0/1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R11G11B10_FLOAT, FFX_RESOURCE_FLAGS_NONE
             CreateDoubleBufferedResource(PrevPreAlpha, "FSR2_PrevPreAlpha", contextDescription.MaxRenderSize, GraphicsFormat.B10G11R11_UFloatPack32);
@@ -134,7 +113,7 @@ namespace FidelityFX.FSR2
         
         // Set up shared aliasable resources, i.e. temporary render textures
         // These do not need to persist between frames, but they do need to be available between passes
-        public static void CreateAliasableResources(CommandBuffer commandBuffer, Fsr2.ContextDescription contextDescription, Fsr2.DispatchDescription dispatchParams)
+        public static void CreateAliasableResources(CommandBuffer commandBuffer, in Fsr2.ContextDescription contextDescription)
         {
             Vector2Int displaySize = contextDescription.DisplaySize;
             Vector2Int maxRenderSize = contextDescription.MaxRenderSize;
@@ -169,15 +148,6 @@ namespace FidelityFX.FSR2
             commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavNewLocks);
         }
 
-        private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format)
-        {
-            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].Create();
-            }
-        }
-
         public void Destroy()
         {
             DestroyTcrAutogenResources();
@@ -202,37 +172,6 @@ namespace FidelityFX.FSR2
             DestroyResource(ref AutoReactive);
         }
 
-        private static void DestroyResource(ref Texture2D resource)
-        {
-            if (resource == null)
-                return;
-            
-#if UNITY_EDITOR
-            if (Application.isPlaying && !UnityEditor.EditorApplication.isPaused)
-                UnityEngine.Object.Destroy(resource);
-            else
-                UnityEngine.Object.DestroyImmediate(resource);
-#else
-            UnityEngine.Object.Destroy(resource);
-#endif
-            resource = null;
-        }
-
-        private static void DestroyResource(ref RenderTexture resource)
-        {
-            if (resource == null)
-                return;
-            
-            resource.Release();
-            resource = null;
-        }
-
-        private static void DestroyResource(RenderTexture[] resource)
-        {
-            for (int i = 0; i < resource.Length; ++i)
-                DestroyResource(ref resource[i]);
-        }
-
         private const int MaximumBiasTextureWidth = 16;
         private const int MaximumBiasTextureHeight = 16;
         private static readonly float[] MaximumBias =  

Runtime/FSR3/Fsr3Upscaler.cs

@@ -21,7 +21,6 @@
 using System;
 using System.Runtime.InteropServices;
 using UnityEngine;
-using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR3
 {
@@ -80,60 +79,13 @@ namespace FidelityFX.FSR3
             }
         }
 
-        public static void GetRenderResolutionFromQualityMode(
-            out int renderWidth, out int renderHeight,
-            int displayWidth, int displayHeight, QualityMode qualityMode)
+        public static void GetRenderResolutionFromQualityMode(out int renderWidth, out int renderHeight, int displayWidth, int displayHeight, QualityMode qualityMode)
         {
             float ratio = GetUpscaleRatioFromQualityMode(qualityMode);
             renderWidth = Mathf.RoundToInt(displayWidth / ratio);
             renderHeight = Mathf.RoundToInt(displayHeight / ratio);
         }
         
-        public static float GetMipmapBiasOffset(int renderWidth, int displayWidth)
-        {
-            return Mathf.Log((float)renderWidth / displayWidth, 2.0f) - 1.0f;
-        }
-
-        public static int GetJitterPhaseCount(int renderWidth, int displayWidth)
-        {
-            const float basePhaseCount = 8.0f;
-            int jitterPhaseCount = (int)(basePhaseCount * Mathf.Pow((float)displayWidth / renderWidth, 2.0f));
-            return jitterPhaseCount;
-        }
-
-        public static void GetJitterOffset(out float outX, out float outY, int index, int phaseCount)
-        {
-            outX = Halton((index % phaseCount) + 1, 2) - 0.5f;
-            outY = Halton((index % phaseCount) + 1, 3) - 0.5f;
-        }
-        
-        // Calculate halton number for index and base.
-        private static float Halton(int index, int @base)
-        {
-            float f = 1.0f, result = 0.0f;
-
-            for (int currentIndex = index; currentIndex > 0;) {
-
-                f /= @base;
-                result += f * (currentIndex % @base);
-                currentIndex = (int)Mathf.Floor((float)currentIndex / @base);
-            }
-
-            return result;
-        }
-        
-        public static float Lanczos2(float value)
-        {
-            return Mathf.Abs(value) < Mathf.Epsilon ? 1.0f : Mathf.Sin(Mathf.PI * value) / (Mathf.PI * value) * (Mathf.Sin(0.5f * Mathf.PI * value) / (0.5f * Mathf.PI * value));
-        }
-        
-#if !UNITY_2021_1_OR_NEWER
-        internal static void SetBufferData(this CommandBuffer commandBuffer, ComputeBuffer computeBuffer, Array data)
-        {
-            commandBuffer.SetComputeBufferData(computeBuffer, data);
-        }
-#endif
-        
         public enum QualityMode
         {
             NativeAA = 0,
@@ -178,7 +130,7 @@ namespace FidelityFX.FSR3
         /// <summary>
         /// A structure encapsulating the parameters for dispatching the various passes of FidelityFX Super Resolution 3.
         /// </summary>
-        public class DispatchDescription
+        public struct DispatchDescription
         {
             public ResourceView Color;
             public ResourceView Depth;
@@ -206,26 +158,42 @@ namespace FidelityFX.FSR3
             // EXPERIMENTAL reactive mask generation parameters
             public bool EnableAutoReactive;
             public ResourceView ColorOpaqueOnly;
-            public float AutoTcThreshold = 0.05f;
-            public float AutoTcScale = 1.0f;
-            public float AutoReactiveScale = 5.0f;
-            public float AutoReactiveMax = 0.9f;
+            public float AutoTcThreshold;
+            public float AutoTcScale;
+            public float AutoReactiveScale;
+            public float AutoReactiveMax;
+            
+            public static readonly DispatchDescription Default = new DispatchDescription
+            {
+                AutoTcThreshold = 0.05f,
+                AutoTcScale = 1.0f,
+                AutoReactiveScale = 5.0f,
+                AutoReactiveMax = 0.9f,
+            };
         }
 
         /// <summary>
         /// A structure encapsulating the parameters for automatic generation of a reactive mask.
         /// The default values for Scale, CutoffThreshold, BinaryValue and Flags were taken from the FSR3 demo project.
         /// </summary>
-        public class GenerateReactiveDescription
+        public struct GenerateReactiveDescription
         {
             public ResourceView ColorOpaqueOnly;
             public ResourceView ColorPreUpscale;
             public ResourceView OutReactive;
             public Vector2Int RenderSize;
-            public float Scale = 0.5f;
-            public float CutoffThreshold = 0.2f;
-            public float BinaryValue = 0.9f;
-            public GenerateReactiveFlags Flags = GenerateReactiveFlags.ApplyTonemap | GenerateReactiveFlags.ApplyThreshold | GenerateReactiveFlags.UseComponentsMax;
+            public float Scale;
+            public float CutoffThreshold;
+            public float BinaryValue;
+            public GenerateReactiveFlags Flags;
+
+            public static readonly GenerateReactiveDescription Default = new GenerateReactiveDescription
+            {
+                Scale = 0.5f,
+                CutoffThreshold = 0.2f,
+                BinaryValue = 0.9f,
+                Flags = GenerateReactiveFlags.ApplyTonemap | GenerateReactiveFlags.ApplyThreshold | GenerateReactiveFlags.UseComponentsMax,
+            };
         }
 
         [Flags]
@@ -270,9 +238,7 @@ namespace FidelityFX.FSR3
         [Serializable, StructLayout(LayoutKind.Sequential)]
         internal struct SpdConstants
         {
-            public uint mips;
-            public uint numWorkGroups;
-            public uint workGroupOffsetX, workGroupOffsetY;
+            public FfxSpd.SpdConstants spd;
             public uint renderSizeX, renderSizeY;
         }
 

Runtime/FSR3/Fsr3UpscalerAssets.cs

@@ -19,7 +19,6 @@
 // THE SOFTWARE.
 
 using UnityEngine;
-using UnityEngine.Serialization;
 
 namespace FidelityFX.FSR3
 {

Runtime/FSR3/Fsr3UpscalerContext.cs

@@ -19,8 +19,8 @@
 // THE SOFTWARE.
 
 using System;
-using System.Runtime.InteropServices;
 using UnityEngine;
+using UnityEngine.Profiling;
 using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR3
@@ -31,48 +31,34 @@ namespace FidelityFX.FSR3
     /// Note that this class does not know anything about Unity render pipelines; all it knows is CommandBuffers and RenderTargetIdentifiers.
     /// This should make it suitable for integration with any of the available Unity render pipelines.
     /// </summary>
-    public class Fsr3UpscalerContext
+    public class Fsr3UpscalerContext: FfxContextBase
     {
         private const int MaxQueuedFrames = 16;
         
         private Fsr3Upscaler.ContextDescription _contextDescription;
         private CommandBuffer _commandBuffer;
         
-        private Fsr3UpscalerPass _prepareInputsPass;
-        private Fsr3UpscalerPass _lumaPyramidPass;
-        private Fsr3UpscalerPass _shadingChangePyramidPass;
-        private Fsr3UpscalerPass _shadingChangePass;
-        private Fsr3UpscalerPass _prepareReactivityPass;
-        private Fsr3UpscalerPass _lumaInstabilityPass;
-        private Fsr3UpscalerPass _accumulatePass;
-        private Fsr3UpscalerPass _sharpenPass;
-        private Fsr3UpscalerPass _generateReactivePass;
-        private Fsr3UpscalerPass _tcrAutogeneratePass;
+        private Fsr3UpscalerPrepareInputsPass _prepareInputsPass;
+        private Fsr3UpscalerLumaPyramidPass _lumaPyramidPass;
+        private Fsr3UpscalerShadingChangePyramidPass _shadingChangePyramidPass;
+        private Fsr3UpscalerShadingChangePass _shadingChangePass;
+        private Fsr3UpscalerPrepareReactivityPass _prepareReactivityPass;
+        private Fsr3UpscalerLumaInstabilityPass _lumaInstabilityPass;
+        private Fsr3UpscalerAccumulatePass _accumulatePass;
+        private Fsr3UpscalerSharpenPass _sharpenPass;
+        private Fsr3UpscalerGenerateReactivePass _generateReactivePass;
+        private Fsr3UpscalerTcrAutogeneratePass _tcrAutogeneratePass;
 #if UNITY_EDITOR || DEVELOPMENT_BUILD
-        private Fsr3UpscalerPass _debugViewPass;
+        private Fsr3UpscalerDebugViewPass _debugViewPass;
 #endif
 
         private readonly Fsr3UpscalerResources _resources = new Fsr3UpscalerResources();
 
-        private ComputeBuffer _upscalerConstantsBuffer;
-        private readonly Fsr3Upscaler.UpscalerConstants[] _upscalerConstantsArray = { new Fsr3Upscaler.UpscalerConstants() };
-        private ref Fsr3Upscaler.UpscalerConstants UpscalerConsts => ref _upscalerConstantsArray[0];
-
-        private ComputeBuffer _spdConstantsBuffer;
-        private readonly Fsr3Upscaler.SpdConstants[] _spdConstantsArray = { new Fsr3Upscaler.SpdConstants() };
-        private ref Fsr3Upscaler.SpdConstants SpdConsts => ref _spdConstantsArray[0];
-    
-        private ComputeBuffer _rcasConstantsBuffer;
-        private readonly Fsr3Upscaler.RcasConstants[] _rcasConstantsArray = new Fsr3Upscaler.RcasConstants[1];
-        private ref Fsr3Upscaler.RcasConstants RcasConsts => ref _rcasConstantsArray[0];
-
-        private ComputeBuffer _generateReactiveConstantsBuffer;
-        private readonly Fsr3Upscaler.GenerateReactiveConstants[] _generateReactiveConstantsArray = { new Fsr3Upscaler.GenerateReactiveConstants() };
-        private ref Fsr3Upscaler.GenerateReactiveConstants GenReactiveConsts => ref _generateReactiveConstantsArray[0];
-
-        private ComputeBuffer _tcrAutogenerateConstantsBuffer;
-        private readonly Fsr3Upscaler.GenerateReactiveConstants2[] _tcrAutogenerateConstantsArray = { new Fsr3Upscaler.GenerateReactiveConstants2() };
-        private ref Fsr3Upscaler.GenerateReactiveConstants2 TcrAutoGenConsts => ref _tcrAutogenerateConstantsArray[0];
+        private readonly ConstantsBuffer<Fsr3Upscaler.UpscalerConstants> _upscalerConstants = new ConstantsBuffer<Fsr3Upscaler.UpscalerConstants>();
+        private readonly ConstantsBuffer<Fsr3Upscaler.SpdConstants> _spdConstants = new ConstantsBuffer<Fsr3Upscaler.SpdConstants>();
+        private readonly ConstantsBuffer<Fsr3Upscaler.RcasConstants> _rcasConstants = new ConstantsBuffer<Fsr3Upscaler.RcasConstants>();
+        private readonly ConstantsBuffer<Fsr3Upscaler.GenerateReactiveConstants> _generateReactiveConstants = new ConstantsBuffer<Fsr3Upscaler.GenerateReactiveConstants>();
+        private readonly ConstantsBuffer<Fsr3Upscaler.GenerateReactiveConstants2> _tcrAutogenerateConstants = new ConstantsBuffer<Fsr3Upscaler.GenerateReactiveConstants2>();
 
         private bool _firstExecution;
         private int _resourceFrameIndex;
@@ -80,22 +66,24 @@ namespace FidelityFX.FSR3
         private float _preExposure;
         private float _previousFramePreExposure;
         
-        public void Create(Fsr3Upscaler.ContextDescription contextDescription)
+        private readonly CustomSampler _sampler = CustomSampler.Create("FSR3 Upscaler");
+
+        public void Create(in Fsr3Upscaler.ContextDescription contextDescription)
         {
             _contextDescription = contextDescription;
             _commandBuffer = new CommandBuffer { name = "FSR3 Upscaler" };
             
-            _upscalerConstantsBuffer = CreateConstantBuffer<Fsr3Upscaler.UpscalerConstants>();
-            _spdConstantsBuffer = CreateConstantBuffer<Fsr3Upscaler.SpdConstants>();
-            _rcasConstantsBuffer = CreateConstantBuffer<Fsr3Upscaler.RcasConstants>();
-            _generateReactiveConstantsBuffer = CreateConstantBuffer<Fsr3Upscaler.GenerateReactiveConstants>();
-            _tcrAutogenerateConstantsBuffer = CreateConstantBuffer<Fsr3Upscaler.GenerateReactiveConstants2>();
+            _upscalerConstants.Create();
+            _spdConstants.Create();
+            _rcasConstants.Create();
+            _generateReactiveConstants.Create();
+            _tcrAutogenerateConstants.Create();
 
             // Set defaults
             _firstExecution = true;
             _resourceFrameIndex = 0;
             
-            UpscalerConsts.maxUpscaleSize = _contextDescription.MaxUpscaleSize;
+            _upscalerConstants.Value.maxUpscaleSize = _contextDescription.MaxUpscaleSize;
             
             _resources.Create(_contextDescription);
             CreatePasses();
@@ -103,18 +91,18 @@ namespace FidelityFX.FSR3
 
         private void CreatePasses()
         {
-            _prepareInputsPass = new Fsr3UpscalerPrepareInputsPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _lumaPyramidPass = new Fsr3UpscalerLumaPyramidPass(_contextDescription, _resources, _upscalerConstantsBuffer, _spdConstantsBuffer);
-            _shadingChangePyramidPass = new Fsr3UpscalerShadingChangePyramidPass(_contextDescription, _resources, _upscalerConstantsBuffer, _spdConstantsBuffer);
-            _shadingChangePass = new Fsr3UpscalerShadingChangePass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _prepareReactivityPass = new Fsr3UpscalerPrepareReactivityPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _lumaInstabilityPass = new Fsr3UpscalerLumaInstabilityPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _accumulatePass = new Fsr3UpscalerAccumulatePass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _sharpenPass = new Fsr3UpscalerSharpenPass(_contextDescription, _resources, _upscalerConstantsBuffer, _rcasConstantsBuffer);
-            _generateReactivePass = new Fsr3UpscalerGenerateReactivePass(_contextDescription, _resources, _generateReactiveConstantsBuffer);
-            _tcrAutogeneratePass = new Fsr3UpscalerTcrAutogeneratePass(_contextDescription, _resources, _upscalerConstantsBuffer, _tcrAutogenerateConstantsBuffer);
+            _prepareInputsPass = new Fsr3UpscalerPrepareInputsPass(_contextDescription, _resources, _upscalerConstants);
+            _lumaPyramidPass = new Fsr3UpscalerLumaPyramidPass(_contextDescription, _resources, _upscalerConstants, _spdConstants);
+            _shadingChangePyramidPass = new Fsr3UpscalerShadingChangePyramidPass(_contextDescription, _resources, _upscalerConstants, _spdConstants);
+            _shadingChangePass = new Fsr3UpscalerShadingChangePass(_contextDescription, _resources, _upscalerConstants);
+            _prepareReactivityPass = new Fsr3UpscalerPrepareReactivityPass(_contextDescription, _resources, _upscalerConstants);
+            _lumaInstabilityPass = new Fsr3UpscalerLumaInstabilityPass(_contextDescription, _resources, _upscalerConstants);
+            _accumulatePass = new Fsr3UpscalerAccumulatePass(_contextDescription, _resources, _upscalerConstants);
+            _sharpenPass = new Fsr3UpscalerSharpenPass(_contextDescription, _resources, _upscalerConstants, _rcasConstants);
+            _generateReactivePass = new Fsr3UpscalerGenerateReactivePass(_contextDescription, _resources, _upscalerConstants);
+            _tcrAutogeneratePass = new Fsr3UpscalerTcrAutogeneratePass(_contextDescription, _resources, _upscalerConstants, _tcrAutogenerateConstants);
 #if UNITY_EDITOR || DEVELOPMENT_BUILD
-            _debugViewPass = new Fsr3UpscalerDebugViewPass(_contextDescription, _resources, _upscalerConstantsBuffer);
+            _debugViewPass = new Fsr3UpscalerDebugViewPass(_contextDescription, _resources, _upscalerConstants);
 #endif
         }
         
@@ -136,11 +124,11 @@ namespace FidelityFX.FSR3
             
             _resources.Destroy();
             
-            DestroyConstantBuffer(ref _tcrAutogenerateConstantsBuffer);
-            DestroyConstantBuffer(ref _generateReactiveConstantsBuffer);
-            DestroyConstantBuffer(ref _rcasConstantsBuffer);
-            DestroyConstantBuffer(ref _spdConstantsBuffer);
-            DestroyConstantBuffer(ref _upscalerConstantsBuffer);
+            _tcrAutogenerateConstants.Destroy();
+            _generateReactiveConstants.Destroy();
+            _rcasConstants.Destroy();
+            _spdConstants.Destroy();
+            _upscalerConstants.Destroy();
 
             if (_commandBuffer != null)
             {
@@ -149,7 +137,7 @@ namespace FidelityFX.FSR3
             }
         }
 
-        public void Dispatch(Fsr3Upscaler.DispatchDescription dispatchParams)
+        public void Dispatch(in Fsr3Upscaler.DispatchDescription dispatchParams)
         {
             _commandBuffer.Clear();
             Dispatch(dispatchParams, _commandBuffer);
@@ -158,13 +146,15 @@ namespace FidelityFX.FSR3
         
         public void Dispatch(Fsr3Upscaler.DispatchDescription dispatchParams, CommandBuffer commandBuffer)
         {
+            commandBuffer.BeginSample(_sampler);
+            
             if ((_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDebugChecking) != 0)
             {
                 DebugCheckDispatch(dispatchParams);
             }
 
             if (dispatchParams.UseTextureArrays)
-                commandBuffer.EnableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+                commandBuffer.EnableShaderKeyword("UNITY_FFX_TEXTURE2D_X_ARRAY");
             
             if (_firstExecution)
             {
@@ -178,7 +168,7 @@ namespace FidelityFX.FSR3
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
             }
             
-            int frameIndex = _resourceFrameIndex % 2;
+            int bufferIndex = _resourceFrameIndex % 2;
             bool resetAccumulation = dispatchParams.Reset || _firstExecution;
             _firstExecution = false;
 
@@ -197,7 +187,7 @@ namespace FidelityFX.FSR3
                 if (resetAccumulation)
                 {
                     RenderTargetIdentifier opaqueOnly = dispatchParams.ColorOpaqueOnly.IsValid ? dispatchParams.ColorOpaqueOnly.RenderTarget : Fsr3ShaderIDs.SrvOpaqueOnly;
-                    commandBuffer.Blit(_resources.PrevPreAlpha[frameIndex ^ 1], opaqueOnly);
+                    commandBuffer.Blit(_resources.PrevPreAlpha[bufferIndex ^ 1], opaqueOnly);
                 }
             }
             else if (_resources.AutoReactive != null)
@@ -208,23 +198,25 @@ namespace FidelityFX.FSR3
             
             if (!dispatchParams.Reactive.IsValid) dispatchParams.Reactive = new ResourceView(_resources.DefaultReactive);
             if (!dispatchParams.TransparencyAndComposition.IsValid) dispatchParams.TransparencyAndComposition = new ResourceView(_resources.DefaultReactive);
-            Fsr3UpscalerResources.CreateAliasableResources(commandBuffer, _contextDescription, dispatchParams);
+            Fsr3UpscalerResources.CreateAliasableResources(commandBuffer, _contextDescription);
             
             SetupConstants(dispatchParams, resetAccumulation);
             
             // Reactive mask bias
             const int threadGroupWorkRegionDim = 8;
-            int dispatchSrcX = (UpscalerConsts.renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchSrcY = (UpscalerConsts.renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstX = (UpscalerConsts.upscaleSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstY = (UpscalerConsts.upscaleSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchShadingChangePassX = ((UpscalerConsts.renderSize.x / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchShadingChangePassY = ((UpscalerConsts.renderSize.y / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            var renderSize = _upscalerConstants.Value.renderSize;
+            var upscaleSize = _upscalerConstants.Value.upscaleSize;
+            int dispatchSrcX = (renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchSrcY = (renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchDstX = (upscaleSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchDstY = (upscaleSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchShadingChangePassX = ((renderSize.x / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
+            int dispatchShadingChangePassY = ((renderSize.y / 2) + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
             // Clear reconstructed depth for max depth store
             if (resetAccumulation)
             {
-                commandBuffer.SetRenderTarget(_resources.Accumulation[frameIndex ^ 1]);
+                commandBuffer.SetRenderTarget(_resources.Accumulation[bufferIndex ^ 1]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
                 
                 commandBuffer.SetRenderTarget(_resources.SpdMips);
@@ -240,7 +232,7 @@ namespace FidelityFX.FSR3
             }
             
             // FSR3: need to clear here since we need the content of this surface for frame interpolation, so clearing in the lock pass is not an option
-            bool depthInverted = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) == Fsr3Upscaler.InitializationFlags.EnableDepthInverted;
+            bool depthInverted = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) != 0;
             commandBuffer.SetRenderTarget(_resources.ReconstructedPrevNearestDepth);
             commandBuffer.ClearRenderTarget(false, true, depthInverted ? Color.clear : Color.white);
             
@@ -248,43 +240,43 @@ namespace FidelityFX.FSR3
             SetupSpdConstants(dispatchParams, out var dispatchThreadGroupCount);
             
             // Initialize constant buffers data
-            commandBuffer.SetBufferData(_upscalerConstantsBuffer, _upscalerConstantsArray);
-            commandBuffer.SetBufferData(_spdConstantsBuffer, _spdConstantsArray);
+            _upscalerConstants.UpdateBufferData(commandBuffer);
+            _spdConstants.UpdateBufferData(commandBuffer);
 
             // Auto reactive
             if (dispatchParams.EnableAutoReactive)
             {
-                GenerateTransparencyCompositionReactive(dispatchParams, commandBuffer, frameIndex);
+                GenerateTransparencyCompositionReactive(dispatchParams, commandBuffer, bufferIndex);
                 dispatchParams.Reactive = new ResourceView(_resources.AutoReactive);
                 dispatchParams.TransparencyAndComposition = new ResourceView(_resources.AutoComposition);
             }
             
-            _prepareInputsPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
-            _lumaPyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
-            _shadingChangePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
-            _shadingChangePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchShadingChangePassX, dispatchShadingChangePassY);
-            _prepareReactivityPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
-            _lumaInstabilityPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _prepareInputsPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
+            _lumaPyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+            _shadingChangePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+            _shadingChangePass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchShadingChangePassX, dispatchShadingChangePassY);
+            _prepareReactivityPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
+            _lumaInstabilityPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
             
-            _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
+            _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchDstX, dispatchDstY);
 
             if (dispatchParams.EnableSharpening)
             {
                 // Compute the constants
                 SetupRcasConstants(dispatchParams);
-                commandBuffer.SetBufferData(_rcasConstantsBuffer, _rcasConstantsArray);
+                _rcasConstants.UpdateBufferData(commandBuffer);
                 
                 // Dispatch RCAS
                 const int threadGroupWorkRegionDimRcas = 16;
-                int threadGroupsX = (UpscalerConsts.upscaleSize.x + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
-                int threadGroupsY = (UpscalerConsts.upscaleSize.y + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
-                _sharpenPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, threadGroupsX, threadGroupsY);
+                int threadGroupsX = (upscaleSize.x + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
+                int threadGroupsY = (upscaleSize.y + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
+                _sharpenPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, threadGroupsX, threadGroupsY);
             }
             
 #if UNITY_EDITOR || DEVELOPMENT_BUILD
             if ((dispatchParams.Flags & Fsr3Upscaler.DispatchFlags.DrawDebugView) != 0)
             {
-                _debugViewPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
+                _debugViewPass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchDstX, dispatchDstY);
             }
 #endif
 
@@ -292,49 +284,52 @@ namespace FidelityFX.FSR3
 
             Fsr3UpscalerResources.DestroyAliasableResources(commandBuffer);
             
-            commandBuffer.DisableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+            commandBuffer.DisableShaderKeyword("UNITY_FFX_TEXTURE2D_X_ARRAY");
+            commandBuffer.EndSample(_sampler);
         }
 
-        public void GenerateReactiveMask(Fsr3Upscaler.GenerateReactiveDescription dispatchParams)
+        public void GenerateReactiveMask(in Fsr3Upscaler.GenerateReactiveDescription dispatchParams)
         {
             _commandBuffer.Clear();
             GenerateReactiveMask(dispatchParams, _commandBuffer);
             Graphics.ExecuteCommandBuffer(_commandBuffer);
         }
 
-        public void GenerateReactiveMask(Fsr3Upscaler.GenerateReactiveDescription dispatchParams, CommandBuffer commandBuffer)
+        public void GenerateReactiveMask(in Fsr3Upscaler.GenerateReactiveDescription dispatchParams, CommandBuffer commandBuffer)
         {
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (dispatchParams.RenderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (dispatchParams.RenderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
-            GenReactiveConsts.scale = dispatchParams.Scale;
-            GenReactiveConsts.threshold = dispatchParams.CutoffThreshold;
-            GenReactiveConsts.binaryValue = dispatchParams.BinaryValue;
-            GenReactiveConsts.flags = (uint)dispatchParams.Flags;
-            commandBuffer.SetBufferData(_generateReactiveConstantsBuffer, _generateReactiveConstantsArray);
+            ref var genReactiveConsts = ref _generateReactiveConstants.Value;
+            genReactiveConsts.scale = dispatchParams.Scale;
+            genReactiveConsts.threshold = dispatchParams.CutoffThreshold;
+            genReactiveConsts.binaryValue = dispatchParams.BinaryValue;
+            genReactiveConsts.flags = (uint)dispatchParams.Flags;
+            _generateReactiveConstants.UpdateBufferData(commandBuffer);
             
-            ((Fsr3UpscalerGenerateReactivePass)_generateReactivePass).ScheduleDispatch(commandBuffer, dispatchParams, dispatchSrcX, dispatchSrcY);
+            _generateReactivePass.ScheduleDispatch(commandBuffer, dispatchParams, dispatchSrcX, dispatchSrcY);
         }
 
-        private void GenerateTransparencyCompositionReactive(Fsr3Upscaler.DispatchDescription dispatchParams, CommandBuffer commandBuffer, int frameIndex)
+        private void GenerateTransparencyCompositionReactive(in Fsr3Upscaler.DispatchDescription dispatchParams, CommandBuffer commandBuffer, int bufferIndex)
         {
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (dispatchParams.RenderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (dispatchParams.RenderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
 
-            TcrAutoGenConsts.autoTcThreshold = dispatchParams.AutoTcThreshold;
-            TcrAutoGenConsts.autoTcScale = dispatchParams.AutoTcScale;
-            TcrAutoGenConsts.autoReactiveScale = dispatchParams.AutoReactiveScale;
-            TcrAutoGenConsts.autoReactiveMax = dispatchParams.AutoReactiveMax;
-            commandBuffer.SetBufferData(_tcrAutogenerateConstantsBuffer, _tcrAutogenerateConstantsArray);
+            ref var tcrAutoGenConsts = ref _tcrAutogenerateConstants.Value;
+            tcrAutoGenConsts.autoTcThreshold = dispatchParams.AutoTcThreshold;
+            tcrAutoGenConsts.autoTcScale = dispatchParams.AutoTcScale;
+            tcrAutoGenConsts.autoReactiveScale = dispatchParams.AutoReactiveScale;
+            tcrAutoGenConsts.autoReactiveMax = dispatchParams.AutoReactiveMax;
+            _tcrAutogenerateConstants.UpdateBufferData(commandBuffer);
             
-            _tcrAutogeneratePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+            _tcrAutogeneratePass.ScheduleDispatch(commandBuffer, dispatchParams, bufferIndex, dispatchSrcX, dispatchSrcY);
         }
 
-        private void SetupConstants(Fsr3Upscaler.DispatchDescription dispatchParams, bool resetAccumulation)
+        private void SetupConstants(in Fsr3Upscaler.DispatchDescription dispatchParams, bool resetAccumulation)
         {
-            ref Fsr3Upscaler.UpscalerConstants constants = ref UpscalerConsts;
+            ref Fsr3Upscaler.UpscalerConstants constants = ref _upscalerConstants.Value;
 
             constants.previousFrameJitterOffset = constants.jitterOffset;
             constants.jitterOffset = dispatchParams.JitterOffset;
@@ -350,7 +345,10 @@ namespace FidelityFX.FSR3
             constants.viewSpaceToMetersFactor = (dispatchParams.ViewSpaceToMetersFactor > 0.0f) ? dispatchParams.ViewSpaceToMetersFactor : 1.0f;
 
             // Compute params to enable device depth to view space depth computation in shader
-            constants.deviceToViewDepth = SetupDeviceDepthToViewSpaceDepthParams(dispatchParams);
+            bool inverted = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) != 0;
+            bool infinite = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInfinite) != 0;
+            constants.deviceToViewDepth = FfxUtils.SetupDeviceDepthToViewSpaceDepthParams(
+                dispatchParams.RenderSize, dispatchParams.CameraNear, dispatchParams.CameraFar, dispatchParams.CameraFovAngleVertical, inverted, infinite);
 
             constants.previousFrameUpscaleSize = constants.upscaleSize;
             if (dispatchParams.UpscaleSize.x == 0 && dispatchParams.UpscaleSize.y == 0)
@@ -386,7 +384,7 @@ namespace FidelityFX.FSR3
                 _previousJitterOffset = constants.jitterOffset;
             }
 
-            int jitterPhaseCount = Fsr3Upscaler.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.MaxUpscaleSize.x);
+            int jitterPhaseCount = FfxUtils.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.MaxUpscaleSize.x);
             if (resetAccumulation || constants.jitterPhaseCount == 0)
             {
                 constants.jitterPhaseCount = jitterPhaseCount;
@@ -409,78 +407,22 @@ namespace FidelityFX.FSR3
                 constants.frameIndex += 1.0f;
         }
 
-        private Vector4 SetupDeviceDepthToViewSpaceDepthParams(Fsr3Upscaler.DispatchDescription dispatchParams)
-        {
-            bool inverted = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) != 0;
-            bool infinite = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInfinite) != 0;
-
-            // make sure it has no impact if near and far plane values are swapped in dispatch params
-            // the flags "inverted" and "infinite" will decide what transform to use
-            float min = Mathf.Min(dispatchParams.CameraNear, dispatchParams.CameraFar);
-            float max = Mathf.Max(dispatchParams.CameraNear, dispatchParams.CameraFar);
-
-            if (inverted)
-            {
-                (min, max) = (max, min);
-            }
-
-            float q = max / (min - max);
-            float d = -1.0f;
-
-            Vector4 matrixElemC = new Vector4(q, -1.0f - Mathf.Epsilon, q, 0.0f + Mathf.Epsilon);
-            Vector4 matrixElemE = new Vector4(q * min, -min - Mathf.Epsilon, q * min, max);
-            
-            // Revert x and y coords
-            float aspect = (float)dispatchParams.RenderSize.x / dispatchParams.RenderSize.y;
-            float cotHalfFovY = Mathf.Cos(0.5f * dispatchParams.CameraFovAngleVertical) / Mathf.Sin(0.5f * dispatchParams.CameraFovAngleVertical);
-
-            int matrixIndex = (inverted ? 2 : 0) + (infinite ? 1 : 0);
-            return new Vector4(
-                d * matrixElemC[matrixIndex],
-                matrixElemE[matrixIndex],
-                aspect / cotHalfFovY,
-                1.0f / cotHalfFovY);
-        }
-
-        private void SetupRcasConstants(Fsr3Upscaler.DispatchDescription dispatchParams)
+        private void SetupRcasConstants(in Fsr3Upscaler.DispatchDescription dispatchParams)
         {
             int sharpnessIndex = Mathf.RoundToInt(Mathf.Clamp01(dispatchParams.Sharpness) * (RcasConfigs.Length - 1));
-            RcasConsts = RcasConfigs[sharpnessIndex];
+            _rcasConstants.Value = RcasConfigs[sharpnessIndex];
         }
 
-        private void SetupSpdConstants(Fsr3Upscaler.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
+        private void SetupSpdConstants(in Fsr3Upscaler.DispatchDescription dispatchParams, out Vector2Int dispatchThreadGroupCount)
         {
-            RectInt rectInfo = new RectInt(0, 0, dispatchParams.RenderSize.x, dispatchParams.RenderSize.y);
-            SpdSetup(rectInfo, out dispatchThreadGroupCount, out var workGroupOffset, out var numWorkGroupsAndMips);
-            
             // Downsample
-            ref Fsr3Upscaler.SpdConstants spdConstants = ref SpdConsts;
-            spdConstants.numWorkGroups = (uint)numWorkGroupsAndMips.x;
-            spdConstants.mips = (uint)numWorkGroupsAndMips.y;
-            spdConstants.workGroupOffsetX = (uint)workGroupOffset.x;
-            spdConstants.workGroupOffsetY = (uint)workGroupOffset.y;
+            ref Fsr3Upscaler.SpdConstants spdConstants = ref _spdConstants.Value;
+            FfxSpd.SetupSpdConstants(dispatchParams.RenderSize, ref spdConstants.spd, out dispatchThreadGroupCount);
             spdConstants.renderSizeX = (uint)dispatchParams.RenderSize.x;
             spdConstants.renderSizeY = (uint)dispatchParams.RenderSize.y;
         }
 
-        private static void SpdSetup(RectInt rectInfo, out Vector2Int dispatchThreadGroupCount, out Vector2Int workGroupOffset, out Vector2Int numWorkGroupsAndMips, int mips = -1)
-        {
-            workGroupOffset = new Vector2Int(rectInfo.x / 64, rectInfo.y / 64);
-
-            int endIndexX = (rectInfo.x + rectInfo.width - 1) / 64;
-            int endIndexY = (rectInfo.y + rectInfo.height - 1) / 64;
-
-            dispatchThreadGroupCount = new Vector2Int(endIndexX + 1 - workGroupOffset.x, endIndexY + 1 - workGroupOffset.y);
-
-            numWorkGroupsAndMips = new Vector2Int(dispatchThreadGroupCount.x * dispatchThreadGroupCount.y, mips);
-            if (mips < 0)
-            {
-                float resolution = Math.Max(rectInfo.width, rectInfo.height);
-                numWorkGroupsAndMips.y = Math.Min(Mathf.FloorToInt(Mathf.Log(resolution, 2.0f)), 12);
-            }
-        }
-
-        private void DebugCheckDispatch(Fsr3Upscaler.DispatchDescription dispatchParams)
+        private void DebugCheckDispatch(in Fsr3Upscaler.DispatchDescription dispatchParams)
         {
             if (!dispatchParams.Color.IsValid)
             {
@@ -630,28 +572,5 @@ namespace FidelityFX.FSR3
             new Fsr3Upscaler.RcasConstants(1064229695u, 997604214u),
             new Fsr3Upscaler.RcasConstants(1065353216u, 1006648320),
         };
-        
-        private static ComputeBuffer CreateConstantBuffer<TConstants>() where TConstants: struct
-        {
-            return new ComputeBuffer(1, Marshal.SizeOf<TConstants>(), ComputeBufferType.Constant);
-        }
-        
-        private static void DestroyConstantBuffer(ref ComputeBuffer bufferRef)
-        {
-            if (bufferRef == null)
-                return;
-            
-            bufferRef.Release();
-            bufferRef = null;
-        }
-
-        private static void DestroyPass(ref Fsr3UpscalerPass pass)
-        {
-            if (pass == null)
-                return;
-            
-            pass.Dispose();
-            pass = null;
-        }
     }
 }

Runtime/FSR3/Fsr3UpscalerPass.cs

@@ -18,10 +18,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-using System;
-using System.Runtime.InteropServices;
 using UnityEngine;
-using UnityEngine.Profiling;
 using UnityEngine.Rendering;
 
 namespace FidelityFX.FSR3
@@ -31,53 +28,30 @@ namespace FidelityFX.FSR3
     /// This loosely matches the FfxPipelineState struct from the original FSR3 codebase, wrapped in an object-oriented blanket.
     /// These classes are responsible for loading compute shaders, managing temporary resources, binding resources to shader kernels and dispatching said shaders.
     /// </summary>
-    internal abstract class Fsr3UpscalerPass: IDisposable
+    internal abstract class Fsr3UpscalerPass: FfxPassWithFlags<Fsr3Upscaler.InitializationFlags>
     {
-        protected readonly Fsr3Upscaler.ContextDescription ContextDescription;
         protected readonly Fsr3UpscalerResources Resources;
         protected readonly ComputeBuffer Constants;
         
-        protected ComputeShader ComputeShader;
-        protected int KernelIndex;
-
-        protected CustomSampler Sampler;
-        
-        protected Fsr3UpscalerPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        protected Fsr3UpscalerPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+            : base("FSR3 Upscaler", contextDescription.Flags)
         {
-            ContextDescription = contextDescription;
             Resources = resources;
             Constants = constants;
         }
         
-        public virtual void Dispose()
+        public void ScheduleDispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ = 1)
         {
-        }
-
-        public void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+            using (ProfilerSample(commandBuffer))
             {
-            commandBuffer.BeginSample(Sampler);
-            DoScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchX, dispatchY);
-            commandBuffer.EndSample(Sampler);
+                Dispatch(commandBuffer, dispatchParams, bufferIndex, dispatchX, dispatchY, dispatchZ);
             }
-
-        protected abstract void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.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, Fsr3Upscaler.InitializationFlags flags)
-        {
-            if (shader == null)
-            {
-                throw new MissingReferenceException($"Shader for FSR3 Upscaler pass '{passName}' could not be loaded! Please ensure it is included in the project correctly.");
-            }
-
-            ComputeShader = shader;
-            KernelIndex = ComputeShader.FindKernel("CS");
-            Sampler = CustomSampler.Create(passName);
+        protected abstract void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ);
 
+        protected override void SetupShaderKeywords()
+        {
             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)
@@ -87,50 +61,46 @@ namespace FidelityFX.FSR3
 #endif
             
             // This matches the permutation rules from the CreatePipeline* functions
-            if ((flags & Fsr3Upscaler.InitializationFlags.EnableHighDynamicRange) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT");
-            if ((flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS");
-            if ((flags & Fsr3Upscaler.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS");
-            if ((flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH");
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableHighDynamicRange) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT");
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS");
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS");
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableDepthInverted) != 0) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH");
             if (useLut) ComputeShader.EnableKeyword("FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE");
-            if ((flags & Fsr3Upscaler.InitializationFlags.EnableFP16Usage) != 0) ComputeShader.EnableKeyword("FFX_HALF");
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableFP16Usage) != 0) ComputeShader.EnableKeyword("FFX_HALF");
         }
     }
     
-    internal class Fsr3UpscalerPrepareInputsPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerPrepareInputsPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerPrepareInputsPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerPrepareInputsPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Prepare Inputs", contextDescription.Shaders.prepareInputsPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            ref var depth = ref dispatchParams.Depth;
-            ref var motionVectors = ref dispatchParams.MotionVectors;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputDepth, depth.RenderTarget, depth.MipLevel, depth.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, dispatchParams.Color);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputDepth, dispatchParams.Depth);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
             
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavDilatedDepth, Resources.DilatedDepth);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavReconstructedPrevNearestDepth, Resources.ReconstructedPrevNearestDepth);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavFarthestDepth, Fsr3ShaderIDs.UavIntermediate);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavCurrentLuma, Resources.Luma[bufferIndex]);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerLumaPyramidPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerLumaPyramidPass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _spdConstants;
         
-        public Fsr3UpscalerLumaPyramidPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
+        public Fsr3UpscalerLumaPyramidPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
             : base(contextDescription, resources, constants)
         {
             _spdConstants = spdConstants;
@@ -138,32 +108,32 @@ namespace FidelityFX.FSR3
             InitComputeShader("Compute Luminance Pyramid", contextDescription.Shaders.lumaPyramidPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[bufferIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepth, Fsr3ShaderIDs.UavIntermediate);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdAtomicCount, Resources.SpdAtomicCounter);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavFrameInfo, Resources.FrameInfo);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip0, Resources.SpdMips, 0);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip1, Resources.SpdMips, 1);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip2, Resources.SpdMips, 2);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip3, Resources.SpdMips, 3);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip4, Resources.SpdMips, 4);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip5, Resources.SpdMips, 5);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip0, Resources.SpdMips, 0);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip1, Resources.SpdMips, 1);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip2, Resources.SpdMips, 2);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip3, Resources.SpdMips, 3);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip4, Resources.SpdMips, 4);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip5, Resources.SpdMips, 5);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants, 0, Marshal.SizeOf<Fsr3Upscaler.SpdConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.SpdConstants>(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerShadingChangePyramidPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerShadingChangePyramidPass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _spdConstants;
         
-        public Fsr3UpscalerShadingChangePyramidPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
+        public Fsr3UpscalerShadingChangePyramidPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
             : base(contextDescription, resources, constants)
         {
             _spdConstants = spdConstants;
@@ -171,110 +141,102 @@ namespace FidelityFX.FSR3
             InitComputeShader("Compute Shading Change Pyramid", contextDescription.Shaders.shadingChangePyramidPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPreviousLuma, Resources.Luma[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPreviousLuma, Resources.Luma[bufferIndex ^ 1]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
             
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdAtomicCount, Resources.SpdAtomicCounter);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip0, Resources.SpdMips, 0);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip1, Resources.SpdMips, 1);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip2, Resources.SpdMips, 2);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip3, Resources.SpdMips, 3);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip4, Resources.SpdMips, 4);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip5, Resources.SpdMips, 5);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip0, Resources.SpdMips, 0);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip1, Resources.SpdMips, 1);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip2, Resources.SpdMips, 2);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip3, Resources.SpdMips, 3);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip4, Resources.SpdMips, 4);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdMip5, Resources.SpdMips, 5);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants, 0, Marshal.SizeOf<Fsr3Upscaler.SpdConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.SpdConstants>(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
     
-    internal class Fsr3UpscalerShadingChangePass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerShadingChangePass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerShadingChangePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerShadingChangePass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Compute Shading Change", contextDescription.Shaders.shadingChangePass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvSpdMips, Resources.SpdMips);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerPrepareReactivityPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerPrepareReactivityPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerPrepareReactivityPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerPrepareReactivityPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Prepare Reactivity", contextDescription.Shaders.prepareReactivityPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
-            ref var reactive = ref dispatchParams.Reactive;
-            ref var tac = ref dispatchParams.TransparencyAndComposition;
-
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvReconstructedPrevNearestDepth, Resources.ReconstructedPrevNearestDepth);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedDepth, Resources.DilatedDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvReactiveMask, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvTransparencyAndCompositionMask, tac.RenderTarget, tac.MipLevel, tac.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvAccumulation, Resources.Accumulation[frameIndex ^ 1]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvReactiveMask, dispatchParams.Reactive);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvTransparencyAndCompositionMask, dispatchParams.TransparencyAndComposition);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvAccumulation, Resources.Accumulation[bufferIndex ^ 1]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvShadingChange, Fsr3ShaderIDs.UavShadingChange);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[bufferIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
 
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAccumulation, Resources.Accumulation[frameIndex]); 
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAccumulation, Resources.Accumulation[bufferIndex]); 
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerLumaInstabilityPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerLumaInstabilityPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerLumaInstabilityPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerLumaInstabilityPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Compute Luminance Instability", contextDescription.Shaders.lumaInstabilityPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedReactiveMasks, Fsr3ShaderIDs.UavDilatedReactiveMasks);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFrameInfo, Resources.FrameInfo);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaHistory, Resources.LumaHistory[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaHistory, Resources.LumaHistory[bufferIndex ^ 1]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepthMip1, Fsr3ShaderIDs.UavFarthestDepthMip1);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[bufferIndex]);
 
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaHistory, Resources.LumaHistory[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaHistory, Resources.LumaHistory[bufferIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaInstability, Fsr3ShaderIDs.UavIntermediate);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
     
-    internal class Fsr3UpscalerAccumulatePass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerAccumulatePass : Fsr3UpscalerPass
     {
         private const string SharpeningKeyword = "FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING";
     
@@ -282,7 +244,7 @@ namespace FidelityFX.FSR3
         private readonly LocalKeyword _sharpeningKeyword;
 #endif
         
-        public Fsr3UpscalerAccumulatePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerAccumulatePass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Accumulate", contextDescription.Shaders.accumulatePass);
@@ -291,7 +253,7 @@ namespace FidelityFX.FSR3
 #endif
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
 #if UNITY_2021_2_OR_NEWER
             if (dispatchParams.EnableSharpening)
@@ -305,44 +267,39 @@ namespace FidelityFX.FSR3
                 commandBuffer.DisableShaderKeyword(SharpeningKeyword);
 #endif
             
-            ref var color = ref dispatchParams.Color;
-            ref var exposure = ref dispatchParams.Exposure;
-            ref var output = ref dispatchParams.Output;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedReactiveMasks, Fsr3ShaderIDs.UavDilatedReactiveMasks);
             
-            if ((ContextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
+            if ((Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
             {
                 commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             }
             else
             {
-                ref var motionVectors = ref dispatchParams.MotionVectors;
-                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
             }
 
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[bufferIndex ^ 1]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLanczosLut, Resources.LanczosLut);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepthMip1, Fsr3ShaderIDs.UavFarthestDepthMip1);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[bufferIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaInstability, Fsr3ShaderIDs.UavIntermediate);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, dispatchParams.Color);
             
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[bufferIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, dispatchParams.Output);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerSharpenPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerSharpenPass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _rcasConstants;
 
-        public Fsr3UpscalerSharpenPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer rcasConstants)
+        public Fsr3UpscalerSharpenPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer rcasConstants)
             : base(contextDescription, resources, constants)
         {
             _rcasConstants = rcasConstants;
@@ -350,27 +307,25 @@ namespace FidelityFX.FSR3
             InitComputeShader("RCAS Sharpening", contextDescription.Shaders.sharpenPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvRcasInput, Resources.InternalUpscaled[frameIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvRcasInput, Resources.InternalUpscaled[bufferIndex]);
             
-            ref var output = ref dispatchParams.Output;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, dispatchParams.Output);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbRcas, _rcasConstants, 0, Marshal.SizeOf<Fsr3Upscaler.RcasConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.RcasConstants>(ComputeShader, Fsr3ShaderIDs.CbRcas, _rcasConstants);
 
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
-    internal class Fsr3UpscalerGenerateReactivePass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerGenerateReactivePass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _generateReactiveConstants;
 
-        public Fsr3UpscalerGenerateReactivePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer generateReactiveConstants)
+        public Fsr3UpscalerGenerateReactivePass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer generateReactiveConstants)
             : base(contextDescription, resources, null)
         {
             _generateReactiveConstants = generateReactiveConstants;
@@ -378,35 +333,30 @@ namespace FidelityFX.FSR3
             InitComputeShader("Auto-Generate Reactive Mask", contextDescription.Shaders.autoGenReactivePass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
         }
 
-        public void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.GenerateReactiveDescription dispatchParams, int dispatchX, int dispatchY)
+        public void ScheduleDispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.GenerateReactiveDescription dispatchParams, int dispatchX, int dispatchY)
         {
-            commandBuffer.BeginSample(Sampler);
-            
-            ref var opaqueOnly = ref dispatchParams.ColorOpaqueOnly;
-            ref var color = ref dispatchParams.ColorPreUpscale;
-            ref var reactive = ref dispatchParams.OutReactive;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvOpaqueOnly, opaqueOnly.RenderTarget, opaqueOnly.MipLevel, opaqueOnly.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAutoReactive, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
+            using (ProfilerSample(commandBuffer))
+            {
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvOpaqueOnly, dispatchParams.ColorOpaqueOnly);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, dispatchParams.ColorPreUpscale);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAutoReactive, dispatchParams.OutReactive);
 
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbGenReactive, _generateReactiveConstants, 0, Marshal.SizeOf<Fsr3Upscaler.GenerateReactiveConstants>());
+                commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.GenerateReactiveConstants>(ComputeShader, Fsr3ShaderIDs.CbGenReactive, _generateReactiveConstants);
 
                 commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
-            
-            commandBuffer.EndSample(Sampler);
+            }
         }
     }
 
-    internal class Fsr3UpscalerTcrAutogeneratePass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerTcrAutogeneratePass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _tcrAutogenerateConstants;
 
-        public Fsr3UpscalerTcrAutogeneratePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer tcrAutogenerateConstants)
+        public Fsr3UpscalerTcrAutogeneratePass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer tcrAutogenerateConstants)
             : base(contextDescription, resources, constants)
         {
             _tcrAutogenerateConstants = tcrAutogenerateConstants;
@@ -414,58 +364,50 @@ namespace FidelityFX.FSR3
             InitComputeShader("Auto-Generate Transparency & Composition Mask", contextDescription.Shaders.tcrAutoGenPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var color = ref dispatchParams.Color;
-            ref var motionVectors = ref dispatchParams.MotionVectors;
-            ref var opaqueOnly = ref dispatchParams.ColorOpaqueOnly;
-            ref var reactive = ref dispatchParams.Reactive;
-            ref var tac = ref dispatchParams.TransparencyAndComposition;
-            
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvOpaqueOnly, opaqueOnly.RenderTarget, opaqueOnly.MipLevel, opaqueOnly.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPrevColorPreAlpha, Resources.PrevPreAlpha[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPrevColorPostAlpha, Resources.PrevPostAlpha[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvReactiveMask, reactive.RenderTarget, reactive.MipLevel, reactive.SubElement);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvTransparencyAndCompositionMask, tac.RenderTarget, tac.MipLevel, tac.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvOpaqueOnly, dispatchParams.ColorOpaqueOnly);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, dispatchParams.Color);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, dispatchParams.MotionVectors);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPrevColorPreAlpha, Resources.PrevPreAlpha[bufferIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPrevColorPostAlpha, Resources.PrevPostAlpha[bufferIndex ^ 1]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvReactiveMask, dispatchParams.Reactive);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvTransparencyAndCompositionMask, dispatchParams.TransparencyAndComposition);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAutoReactive, Resources.AutoReactive);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAutoComposition, Resources.AutoComposition);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavPrevColorPreAlpha, Resources.PrevPreAlpha[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavPrevColorPostAlpha, Resources.PrevPostAlpha[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavPrevColorPreAlpha, Resources.PrevPreAlpha[bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavPrevColorPostAlpha, Resources.PrevPostAlpha[bufferIndex]);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbGenReactive, _tcrAutogenerateConstants, 0, Marshal.SizeOf<Fsr3Upscaler.GenerateReactiveConstants2>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.GenerateReactiveConstants2>(ComputeShader, Fsr3ShaderIDs.CbGenReactive, _tcrAutogenerateConstants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 
 #if UNITY_EDITOR || DEVELOPMENT_BUILD
-    internal class Fsr3UpscalerDebugViewPass : Fsr3UpscalerPass
+    internal sealed class Fsr3UpscalerDebugViewPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerDebugViewPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerDebugViewPass(in Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
             InitComputeShader("Debug View", contextDescription.Shaders.debugViewPass);
         }
 
-        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void Dispatch(CommandBuffer commandBuffer, in Fsr3Upscaler.DispatchDescription dispatchParams, int bufferIndex, int dispatchX, int dispatchY, int dispatchZ)
         {
-            ref var exposure = ref dispatchParams.Exposure;
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedReactiveMasks, Fsr3ShaderIDs.UavDilatedReactiveMasks);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedDepth, Resources.DilatedDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[bufferIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, dispatchParams.Exposure);
             
-            ref var output = ref dispatchParams.Output;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, dispatchParams.Output);
             
-            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam<Fsr3Upscaler.UpscalerConstants>(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants);
             
-            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
         }
     }
 #endif

Runtime/FSR3/Fsr3UpscalerResources.cs

@@ -29,7 +29,7 @@ namespace FidelityFX.FSR3
     /// Helper class for bundling and managing persistent resources required by the FSR3 Upscaler process.
     /// This includes lookup tables, default fallback resources and double-buffered resources that get swapped between frames.
     /// </summary>
-    internal class Fsr3UpscalerResources
+    internal class Fsr3UpscalerResources: FfxResourcesBase
     {
         public Texture2D LanczosLut;
         public Texture2D DefaultExposure;
@@ -51,63 +51,44 @@ namespace FidelityFX.FSR3
         public readonly RenderTexture[] PrevPreAlpha = new RenderTexture[2];
         public readonly RenderTexture[] PrevPostAlpha = new RenderTexture[2];
 
-        public void Create(Fsr3Upscaler.ContextDescription contextDescription)
+        public void Create(in Fsr3Upscaler.ContextDescription contextDescription)
         {
             // Generate the data for the LUT
             const int lanczos2LutWidth = 128;
-            float[] lanczos2Weights = new float[lanczos2LutWidth];
-            for (int currentLanczosWidthIndex = 0; currentLanczosWidthIndex < lanczos2LutWidth; ++currentLanczosWidthIndex)
-            {
-                float x = 2.0f * currentLanczosWidthIndex / (lanczos2LutWidth - 1);
-                float y = Fsr3Upscaler.Lanczos2(x);
-                lanczos2Weights[currentLanczosWidthIndex] = y;
-            }
+            float[] lanczos2Weights = FfxUtils.GenerateLanczos2Table(lanczos2LutWidth);
 
             Vector2Int maxRenderSize = contextDescription.MaxRenderSize;
             Vector2Int maxRenderSizeDiv2 = maxRenderSize / 2;
             
             // Resource FSR3UPSCALER_LanczosLutData: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R16_SNORM, FFX_RESOURCE_FLAGS_NONE
             // R16_SNorm textures are not supported by Unity on most platforms, strangely enough. So instead we use R32_SFloat and upload pre-normalized float data.
-            LanczosLut = new Texture2D(lanczos2LutWidth, 1, GraphicsFormat.R32_SFloat, TextureCreationFlags.None) { name = "FSR3UPSCALER_LanczosLutData" };
-            LanczosLut.SetPixelData(lanczos2Weights, 0);
-            LanczosLut.Apply();
+            LanczosLut = CreateLookup("FSR3UPSCALER_LanczosLutData", new Vector2Int(lanczos2LutWidth, 1), GraphicsFormat.R32_SFloat, lanczos2Weights);
             
             // Resource FSR3UPSCALER_DefaultReactivityMask: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            DefaultReactive = new Texture2D(1, 1, GraphicsFormat.R8_UNorm, TextureCreationFlags.None) { name = "FSR3UPSCALER_DefaultReactivityMask" };
-            DefaultReactive.SetPixel(0, 0, Color.clear);
-            DefaultReactive.Apply();
+            DefaultReactive = CreateLookup("FSR3UPSCALER_DefaultReactivityMask", GraphicsFormat.R8_UNorm, Color.clear);
             
             // Resource FSR3UPSCALER_DefaultExposure: FFX_RESOURCE_USAGE_READ_ONLY, FFX_SURFACE_FORMAT_R32G32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            DefaultExposure = new Texture2D(1, 1, GraphicsFormat.R32G32_SFloat, TextureCreationFlags.None) { name = "FSR3UPSCALER_DefaultExposure" };
-            DefaultExposure.SetPixel(0, 0, Color.clear);
-            DefaultExposure.Apply();
+            DefaultExposure = CreateLookup("FSR3UPSCALER_DefaultExposure", GraphicsFormat.R32G32_SFloat, Color.clear);
             
             // Resource FSR3UPSCALER_SpdAtomicCounter: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_UINT, FFX_RESOURCE_FLAGS_ALIASABLE
             // Despite what the original FSR3 codebase says, this resource really isn't aliasable. Resetting this counter to 0 every frame breaks auto-exposure on MacOS Metal.
-            SpdAtomicCounter = new RenderTexture(1, 1, 0, GraphicsFormat.R32_UInt) { name = "FSR3UPSCALER_SpdAtomicCounter", enableRandomWrite = true };
-            SpdAtomicCounter.Create();
+            SpdAtomicCounter = CreateResource("FSR3UPSCALER_SpdAtomicCounter", Vector2Int.one, GraphicsFormat.R32_UInt);
             
             // Resource FSR3UPSCALER_SpdMips: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
             // This is a rather special case: it's an aliasable resource, but because we require a mipmap chain and bind specific mip levels per shader, we can't easily use temporary RTs for this.
-            int mipCount = 1 + Mathf.FloorToInt(Mathf.Log(Math.Max(maxRenderSizeDiv2.x, maxRenderSizeDiv2.y), 2.0f));
-            SpdMips = new RenderTexture(maxRenderSizeDiv2.x, maxRenderSizeDiv2.y, 0, GraphicsFormat.R16G16_SFloat, mipCount) { name = "FSR3UPSCALER_SpdMips", enableRandomWrite = true, useMipMap = true, autoGenerateMips = false };
-            SpdMips.Create();
+            SpdMips = CreateResourceMips("FSR3UPSCALER_SpdMips", maxRenderSizeDiv2, GraphicsFormat.R16G16_SFloat);
             
             // Resource FSR3UPSCALER_DilatedVelocity: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            DilatedVelocity = new RenderTexture(maxRenderSize.x, maxRenderSize.y, 0, GraphicsFormat.R16G16_SFloat) { name = "FSR3UPSCALER_DilatedVelocity", enableRandomWrite = true };
-            DilatedVelocity.Create();
+            DilatedVelocity = CreateResource("FSR3UPSCALER_DilatedVelocity", maxRenderSize, GraphicsFormat.R16G16_SFloat);
             
             // Resource FSR3UPSCALER_DilatedDepth: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            DilatedDepth = new RenderTexture(maxRenderSize.x, maxRenderSize.y, 0, GraphicsFormat.R32_SFloat) { name = "FSR3UPSCALER_DilatedDepth", enableRandomWrite = true };
-            DilatedDepth.Create();
+            DilatedDepth = CreateResource("FSR3UPSCALER_DilatedDepth", maxRenderSize, GraphicsFormat.R32_SFloat);
             
             // Resource FSR3UPSCALER_ReconstructedPrevNearestDepth: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_UINT, FFX_RESOURCE_FLAGS_NONE
-            ReconstructedPrevNearestDepth = new RenderTexture(maxRenderSize.x, maxRenderSize.y, 0, GraphicsFormat.R32_UInt) { name = "FSR3UPSCALER_ReconstructedPrevNearestDepth", enableRandomWrite = true };
-            ReconstructedPrevNearestDepth.Create();
+            ReconstructedPrevNearestDepth = CreateResource("FSR3UPSCALER_ReconstructedPrevNearestDepth", maxRenderSize, GraphicsFormat.R32_UInt);
             
             // Resource FSR3UPSCALER_FrameInfo: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32G32B32A32_FLOAT, FFX_RESOURCE_FLAGS_NONE
-            FrameInfo = new RenderTexture(1, 1, 0, GraphicsFormat.R32G32B32A32_SFloat) { name = "FSR3UPSCALER_FrameInfo", enableRandomWrite = true };
-            FrameInfo.Create();
+            FrameInfo = CreateResource("FSR3UPSCALER_FrameInfo", Vector2Int.one, GraphicsFormat.R32G32B32A32_SFloat);
 
             // Resources FSR3UPSCALER_Accumulation1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
             CreateDoubleBufferedResource(Accumulation, "FSR3UPSCALER_Accumulation", maxRenderSize, GraphicsFormat.R8_UNorm);
@@ -122,15 +103,13 @@ namespace FidelityFX.FSR3
             CreateDoubleBufferedResource(LumaHistory, "FSR3UPSCALER_LumaHistory", maxRenderSize, GraphicsFormat.R16G16B16A16_SFloat);
         }
 
-        public void CreateTcrAutogenResources(Fsr3Upscaler.ContextDescription contextDescription)
+        public void CreateTcrAutogenResources(in Fsr3Upscaler.ContextDescription contextDescription)
         {
             // Resource FSR3UPSCALER_AutoReactive: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            AutoReactive = new RenderTexture(contextDescription.MaxRenderSize.x, contextDescription.MaxRenderSize.y, 0, GraphicsFormat.R8_UNorm) { name = "FSR3UPSCALER_AutoReactive", enableRandomWrite = true };
-            AutoReactive.Create();
+            AutoReactive = CreateResource("FSR3UPSCALER_AutoReactive", contextDescription.MaxRenderSize, GraphicsFormat.R8_UNorm);
 
             // Resource FSR3UPSCALER_AutoComposition: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_NONE
-            AutoComposition = new RenderTexture(contextDescription.MaxRenderSize.x, contextDescription.MaxRenderSize.y, 0, GraphicsFormat.R8_UNorm) { name = "FSR3UPSCALER_AutoComposition", enableRandomWrite = true };
-            AutoComposition.Create();
+            AutoComposition = CreateResource("FSR3UPSCALER_AutoComposition", contextDescription.MaxRenderSize, GraphicsFormat.R8_UNorm);
 
             // Resources FSR3UPSCALER_PrevPreAlpha0/1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R11G11B10_FLOAT, FFX_RESOURCE_FLAGS_NONE
             CreateDoubleBufferedResource(PrevPreAlpha, "FSR3UPSCALER_PrevPreAlpha", contextDescription.MaxRenderSize, GraphicsFormat.B10G11R11_UFloatPack32);
@@ -141,7 +120,7 @@ namespace FidelityFX.FSR3
         
         // Set up shared aliasable resources, i.e. temporary render textures
         // These do not need to persist between frames, but they do need to be available between passes
-        public static void CreateAliasableResources(CommandBuffer commandBuffer, Fsr3Upscaler.ContextDescription contextDescription, Fsr3Upscaler.DispatchDescription dispatchParams)
+        public static void CreateAliasableResources(CommandBuffer commandBuffer, in Fsr3Upscaler.ContextDescription contextDescription)
         {
             Vector2Int maxUpscaleSize = contextDescription.MaxUpscaleSize;
             Vector2Int maxRenderSize = contextDescription.MaxRenderSize;
@@ -173,15 +152,6 @@ namespace FidelityFX.FSR3
             commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavIntermediate);
         }
 
-        private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format)
-        {
-            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].Create();
-            }
-        }
-
         public void Destroy()
         {
             DestroyTcrAutogenResources();
@@ -210,36 +180,5 @@ namespace FidelityFX.FSR3
             DestroyResource(ref AutoComposition);
             DestroyResource(ref AutoReactive);
         }
-        
-        private static void DestroyResource(ref Texture2D resource)
-        {
-            if (resource == null)
-                return;
-            
-#if UNITY_EDITOR
-            if (Application.isPlaying && !UnityEditor.EditorApplication.isPaused)
-                UnityEngine.Object.Destroy(resource);
-            else
-                UnityEngine.Object.DestroyImmediate(resource);
-#else
-            UnityEngine.Object.Destroy(resource);
-#endif
-            resource = null;
-        }
-
-        private static void DestroyResource(ref RenderTexture resource)
-        {
-            if (resource == null)
-                return;
-            
-            resource.Release();
-            resource = null;
-        }
-
-        private static void DestroyResource(RenderTexture[] resource)
-        {
-            for (int i = 0; i < resource.Length; ++i)
-                DestroyResource(ref resource[i]);
-        }
     }
 }

Runtime/FrameInterpolation.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: bd29728b817dd3f478a426dcb34e360b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/FrameInterpolation/FrameInterpolation.cs

@@ -0,0 +1,162 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Experimental.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    public static class FrameInterpolation
+    {
+        public static FrameInterpolationContext CreateContext(Vector2Int displaySize, Vector2Int maxRenderSize, FrameInterpolationShaders shaders, GraphicsFormat backBufferFormat, InitializationFlags flags = 0)
+        {
+            if (SystemInfo.usesReversedZBuffer)
+                flags |= InitializationFlags.EnableDepthInverted;
+            else
+                flags &= ~InitializationFlags.EnableDepthInverted;
+            
+            var contextDescription = new ContextDescription
+            {
+                flags = flags,
+                maxRenderSize = maxRenderSize,
+                displaySize = displaySize,
+                backBufferFormat = backBufferFormat,
+                shaders = shaders,
+            };
+            
+            Debug.Log($"Setting up Frame Interpolation with render size: {maxRenderSize.x}x{maxRenderSize.y}, display size: {displaySize.x}x{displaySize.y}, backbuffer format: {backBufferFormat}, flags: {flags}");
+            
+            var context = new FrameInterpolationContext();
+            context.Create(contextDescription);
+            return context;
+        }
+        
+        public struct ContextDescription
+        {
+            public InitializationFlags flags;
+            public Vector2Int maxRenderSize;
+            public Vector2Int displaySize;
+            public GraphicsFormat backBufferFormat;
+            public FrameInterpolationShaders shaders;
+        }
+
+        public struct PrepareDescription
+        {
+            public DispatchFlags flags;
+            public Vector2Int renderSize;
+            public Vector2 jitterOffset;
+            public Vector2 motionVectorScale;
+
+            public float frameTimeDelta;
+            public float cameraNear;
+            public float cameraFar;
+            public float viewSpaceToMetersFactor;
+            public float cameraFovAngleVertical;
+
+            public ResourceView depth;
+            public ResourceView motionVectors;
+            public ulong frameID;
+        }
+
+        public struct DispatchDescription
+        {
+            public DispatchFlags flags;
+            public Vector2Int displaySize;
+            public Vector2Int renderSize;
+            public ResourceView currentBackBuffer;
+            public ResourceView currentBackBuffer_HUDLess;  // Optional
+            public ResourceView output;
+
+            public RectInt interpolationRect;
+
+            public ResourceView opticalFlowVector;
+            public ResourceView opticalFlowSceneChangeDetection;
+            public Vector2Int opticalFlowBufferSize;
+            public Vector2 opticalFlowScale;
+            public int opticalFlowBlockSize;
+
+            public float cameraNear;
+            public float cameraFar;
+            public float cameraFovAngleVertical;
+            public float viewSpaceToMetersFactor;
+
+            public float frameTimeDelta;
+            public bool reset;
+
+            public BackbufferTransferFunction backbufferTransferFunction;
+            public Vector2 minMaxLuminance;
+            public ulong frameID;
+
+            public ResourceView InterpolationSource
+            {
+                get
+                {
+                    if (currentBackBuffer_HUDLess.IsValid)
+                        return currentBackBuffer_HUDLess;
+                    
+                    return currentBackBuffer;
+                }
+            }
+        }
+
+        [Flags]
+        public enum InitializationFlags
+        {
+            EnableDepthInverted = 1 << 0,
+            EnableDepthInfinite = 1 << 1,
+            EnableHDRColorInput = 1 << 3,
+            EnableDisplayResolutionMotionVectors = 1 << 4,
+            EnableJitterMotionVectors = 1 << 5,
+            EnableAsyncSupport = 1 << 6,
+        }
+
+        [Flags]
+        public enum DispatchFlags
+        {
+            DrawDebugTearLines = 1 << 0,
+            DrawDebugResetIndicators = 1 << 1,
+            DrawDebugView = 1 << 2,
+        }
+
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct Constants
+        {
+            public Vector2Int renderSize;
+            public Vector2Int displaySize;
+
+            public Vector2 displaySizeRcp;
+            public float cameraNear;
+            public float cameraFar;
+
+            public Vector2Int upscalerTargetSize;
+            public int mode;
+            public int reset;
+
+            public Vector4 deviceToViewDepth;
+
+            public float deltaTime;
+            public int HUDLessAttachedFactor;
+            public Vector2 unused;
+
+            public Vector2 opticalFlowScale;
+            public int opticalFlowBlockSize;
+            public uint dispatchFlags;
+
+            public Vector2Int maxRenderSize;
+            public int opticalFlowHalfResMode;
+            public int numInstances;
+
+            public Vector2Int interpolationRectBase;
+            public Vector2Int interpolationRectSize;
+
+            public Vector3 debugBarColor;
+            public uint backBufferTransferFunction;
+
+            public Vector2 minMaxLuminance;
+            public float tanHalfFOV;
+            public float pad;
+
+            public Vector2 jitter;
+            public Vector2 motionVectorScale;
+        }
+    }
+}

Runtime/FrameInterpolation/FrameInterpolation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 463b39d7227b18b40946829a3c68a462
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/FrameInterpolation/FrameInterpolationAssets.cs

@@ -0,0 +1,176 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using UnityEngine;
+
+namespace FidelityFX.FrameGen
+{
+    /// <summary>
+    /// Scriptable object containing all shader resources required by FidelityFX Frame Interpolation.
+    /// These can be stored in an asset file and referenced from a scene or prefab, avoiding the need to load the shaders from a Resources folder.
+    /// </summary>
+    [CreateAssetMenu(fileName = "Frame Interpolation Assets", menuName = "FidelityFX/Frame Interpolation Assets", order = 1112)]
+    public class FrameInterpolationAssets : ScriptableObject
+    {
+        public FrameInterpolationShaders shaders;
+        
+#if UNITY_EDITOR
+        private void Reset()
+        {
+            shaders = new FrameInterpolationShaders
+            {
+                reconstructAndDilate = FindComputeShader("ffx_frameinterpolation_reconstruct_and_dilate_pass"),
+                setup = FindComputeShader("ffx_frameinterpolation_setup_pass"),
+                reconstructPreviousDepth = FindComputeShader("ffx_frameinterpolation_reconstruct_previous_depth_pass"),
+                gameMotionVectorField = FindComputeShader("ffx_frameinterpolation_game_motion_vector_field_pass"),
+                opticalFlowVectorField = FindComputeShader("ffx_frameinterpolation_optical_flow_vector_field_pass"),
+                disocclusionMask = FindComputeShader("ffx_frameinterpolation_disocclusion_mask_pass"),
+                interpolation = FindComputeShader("ffx_frameinterpolation_pass"),
+                inpaintingPyramid = FindComputeShader("ffx_frameinterpolation_compute_inpainting_pyramid_pass"),
+                inpainting = FindComputeShader("ffx_frameinterpolation_inpainting_pass"),
+                gameVectorFieldInpaintingPyramid = FindComputeShader("ffx_frameinterpolation_compute_game_vector_field_inpainting_pyramid_pass"),
+                debugView = FindComputeShader("ffx_frameinterpolation_debug_view_pass"),
+            };
+        }
+
+        private static ComputeShader FindComputeShader(string name)
+        {
+            string[] assetGuids = UnityEditor.AssetDatabase.FindAssets($"t:ComputeShader {name}");
+            if (assetGuids == null || assetGuids.Length == 0)
+                return null;
+
+            string assetPath = UnityEditor.AssetDatabase.GUIDToAssetPath(assetGuids[0]);
+            return UnityEditor.AssetDatabase.LoadAssetAtPath<ComputeShader>(assetPath);
+        }
+#endif
+    }
+    
+    /// <summary>
+    /// All the compute shaders used by Frame Interpolation.
+    /// </summary>
+    [System.Serializable]
+    public class FrameInterpolationShaders
+    {
+        /// <summary>
+        /// The compute shader used by the reconstruct and dilate pass.
+        /// </summary>
+        public ComputeShader reconstructAndDilate;
+
+        /// <summary>
+        /// The compute shader used by the setup pass.
+        /// </summary>
+        public ComputeShader setup;
+
+        /// <summary>
+        /// The compute shader used by the reconstruct previous depth pass.
+        /// </summary>
+        public ComputeShader reconstructPreviousDepth;
+
+        /// <summary>
+        /// The compute shader used by the game motion vector field pass.
+        /// </summary>
+        public ComputeShader gameMotionVectorField;
+
+        /// <summary>
+        /// The compute shader used by the optical flow vector field pass.
+        /// </summary>
+        public ComputeShader opticalFlowVectorField;
+
+        /// <summary>
+        /// The compute shader used by the disocclusion mask pass.
+        /// </summary>
+        public ComputeShader disocclusionMask;
+
+        /// <summary>
+        /// The compute shader used by the interpolation pass.
+        /// </summary>
+        public ComputeShader interpolation;
+
+        /// <summary>
+        /// The compute shader used by the inpainting pyramid pass.
+        /// </summary>
+        public ComputeShader inpaintingPyramid;
+        
+        /// <summary>
+        /// The compute shader used by the inpainting pass.
+        /// </summary>
+        public ComputeShader inpainting;
+        
+        /// <summary>
+        /// The compute shader used by the game vector field inpainting pyramid pass.
+        /// </summary>
+        public ComputeShader gameVectorFieldInpaintingPyramid;
+        
+        /// <summary>
+        /// The compute shader used by the debug view pass.
+        /// </summary>
+        public ComputeShader debugView;
+        
+        /// <summary>
+        /// Returns a copy of this class and its contents.
+        /// </summary>
+        public FrameInterpolationShaders Clone()
+        {
+            return (FrameInterpolationShaders)MemberwiseClone();
+        }
+
+        /// <summary>
+        /// Returns a copy of this class with clones of all its shaders.
+        /// This can be useful if you're running multiple Frame Interpolation instances with different shader configurations.
+        /// Be sure to clean up these clones through Dispose once you're done with them.
+        /// </summary>
+        public FrameInterpolationShaders DeepCopy()
+        {
+            return new FrameInterpolationShaders
+            {
+                reconstructAndDilate = Object.Instantiate(reconstructAndDilate),
+                setup = Object.Instantiate(setup),
+                reconstructPreviousDepth = Object.Instantiate(reconstructPreviousDepth),
+                gameMotionVectorField = Object.Instantiate(gameMotionVectorField),
+                opticalFlowVectorField = Object.Instantiate(opticalFlowVectorField),
+                disocclusionMask = Object.Instantiate(disocclusionMask),
+                interpolation = Object.Instantiate(interpolation),
+                inpaintingPyramid = Object.Instantiate(inpaintingPyramid),
+                inpainting = Object.Instantiate(inpainting),
+                gameVectorFieldInpaintingPyramid = Object.Instantiate(gameVectorFieldInpaintingPyramid),
+                debugView = Object.Instantiate(debugView),
+            };
+        }
+
+        /// <summary>
+        /// Destroy all the shaders within this instance.
+        /// Use this only on clones created through DeepCopy.
+        /// </summary>
+        public void Dispose()
+        {
+            Object.Destroy(debugView);
+            Object.Destroy(gameVectorFieldInpaintingPyramid);
+            Object.Destroy(inpainting);
+            Object.Destroy(inpaintingPyramid);
+            Object.Destroy(interpolation);
+            Object.Destroy(disocclusionMask);
+            Object.Destroy(opticalFlowVectorField);
+            Object.Destroy(gameMotionVectorField);
+            Object.Destroy(reconstructPreviousDepth);
+            Object.Destroy(setup);
+            Object.Destroy(reconstructAndDilate);
+        }
+    }
+}

Runtime/FrameInterpolation/FrameInterpolationAssets.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 1f0e52bd03044d74f8e7ea17af3c8d7b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/FrameInterpolation/FrameInterpolationContext.cs

@@ -0,0 +1,260 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Assertions;
+using UnityEngine.Profiling;
+using UnityEngine.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    public class FrameInterpolationContext: FfxContextBase
+    {
+        private FrameInterpolation.ContextDescription _contextDescription;
+
+        private FrameInterpolationReconstructAndDilatePass _reconstructAndDilatePass;
+        private FrameInterpolationSetupPass _setupPass;
+        private FrameInterpolationReconstructPreviousDepthPass _reconstructPreviousDepthPass;
+        private FrameInterpolationGameMotionVectorFieldPass _gameMotionVectorFieldPass;
+        private FrameInterpolationOpticalFlowVectorFieldPass _opticalFlowVectorFieldPass;
+        private FrameInterpolationDisocclusionMaskPass _disocclusionMaskPass;
+        private FrameInterpolationInterpolationPass _interpolationPass;
+        private FrameInterpolationInpaintingPyramidPass _inpaintingPyramidPass;
+        private FrameInterpolationInpaintingPass _inpaintingPass;
+        private FrameInterpolationGameVectorFieldInpaintingPyramidPass _gameVectorFieldInpaintingPyramidPass;
+        private FrameInterpolationDebugViewPass _debugViewPass;
+        
+        private readonly FrameInterpolationResources _resources = new FrameInterpolationResources();
+
+        private readonly ConstantsBuffer<FrameInterpolation.Constants> _frameInterpolationConstants = new ConstantsBuffer<FrameInterpolation.Constants>();
+        private readonly ConstantsBuffer<FfxSpd.SpdConstants> _spdConstants = new ConstantsBuffer<FfxSpd.SpdConstants>();
+        
+        private readonly CustomSampler _sampler = CustomSampler.Create("Frame Interpolation");
+        private readonly CustomSampler _prepareSampler = CustomSampler.Create("Frame Interpolation - Prepare");
+
+        private bool _firstExecution;
+        private bool _asyncSupported;
+        private ulong _previousFrameID;
+        
+        public void Create(in FrameInterpolation.ContextDescription contextDescription)
+        {
+            _contextDescription = contextDescription;
+
+            _frameInterpolationConstants.Create();
+            _spdConstants.Create();
+
+            _firstExecution = true;
+            _previousFrameID = 0;
+            _asyncSupported = (_contextDescription.flags & FrameInterpolation.InitializationFlags.EnableAsyncSupport) == FrameInterpolation.InitializationFlags.EnableAsyncSupport;
+
+            ref var constants = ref _frameInterpolationConstants.Value;
+            constants.maxRenderSize = _contextDescription.maxRenderSize;
+            constants.displaySize = _contextDescription.displaySize;
+            constants.displaySizeRcp.x = 1.0f / _contextDescription.displaySize.x;
+            constants.displaySizeRcp.y = 1.0f / _contextDescription.displaySize.y;
+            constants.interpolationRectBase = Vector2Int.zero;
+            constants.interpolationRectSize = _contextDescription.displaySize;
+            
+            _resources.Create(_contextDescription);
+            CreatePasses();
+        }
+
+        private void CreatePasses()
+        {
+            _reconstructAndDilatePass = new FrameInterpolationReconstructAndDilatePass(_contextDescription, _resources, _frameInterpolationConstants);
+            _setupPass = new FrameInterpolationSetupPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _reconstructPreviousDepthPass = new FrameInterpolationReconstructPreviousDepthPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _gameMotionVectorFieldPass = new FrameInterpolationGameMotionVectorFieldPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _opticalFlowVectorFieldPass = new FrameInterpolationOpticalFlowVectorFieldPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _disocclusionMaskPass = new FrameInterpolationDisocclusionMaskPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _interpolationPass = new FrameInterpolationInterpolationPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _inpaintingPyramidPass = new FrameInterpolationInpaintingPyramidPass(_contextDescription, _resources, _frameInterpolationConstants, _spdConstants);
+            _inpaintingPass = new FrameInterpolationInpaintingPass(_contextDescription, _resources, _frameInterpolationConstants);
+            _gameVectorFieldInpaintingPyramidPass = new FrameInterpolationGameVectorFieldInpaintingPyramidPass(_contextDescription, _resources, _frameInterpolationConstants, _spdConstants);
+            _debugViewPass = new FrameInterpolationDebugViewPass(_contextDescription, _resources, _frameInterpolationConstants);
+        }
+
+        public void Destroy()
+        {
+            DestroyPass(ref _debugViewPass);
+            DestroyPass(ref _gameVectorFieldInpaintingPyramidPass);
+            DestroyPass(ref _inpaintingPass);
+            DestroyPass(ref _inpaintingPyramidPass);
+            DestroyPass(ref _interpolationPass);
+            DestroyPass(ref _disocclusionMaskPass);
+            DestroyPass(ref _opticalFlowVectorFieldPass);
+            DestroyPass(ref _gameMotionVectorFieldPass);
+            DestroyPass(ref _reconstructPreviousDepthPass);
+            DestroyPass(ref _setupPass);
+            DestroyPass(ref _reconstructAndDilatePass);
+            
+            _resources.Destroy();
+            
+            _spdConstants.Destroy();
+            _frameInterpolationConstants.Destroy();
+        }
+
+        public void Prepare(CommandBuffer commandBuffer, in FrameInterpolation.PrepareDescription prepareDescription)
+        {
+            commandBuffer.BeginSample(_prepareSampler);
+
+            int doubleBufferId = _asyncSupported ? (int)(prepareDescription.frameID & 1) : 0;
+
+            ref var constants = ref _frameInterpolationConstants.Value;
+            constants.renderSize = prepareDescription.renderSize;
+            constants.jitter = prepareDescription.jitterOffset;
+            Vector2Int motionVectorsTargetSize = (_contextDescription.flags & FrameInterpolation.InitializationFlags.EnableDisplayResolutionMotionVectors) != 0 ? constants.displaySize : constants.renderSize;
+            constants.motionVectorScale.x = prepareDescription.motionVectorScale.x / motionVectorsTargetSize.x;
+            constants.motionVectorScale.y = prepareDescription.motionVectorScale.y / motionVectorsTargetSize.y;
+            
+            _frameInterpolationConstants.UpdateBufferData(commandBuffer);
+            
+            Assert.IsTrue(prepareDescription.depth.IsValid);
+            Assert.IsTrue(prepareDescription.motionVectors.IsValid);
+            
+            // clear estimated depth resources
+            {
+                bool inverted = (_contextDescription.flags & FrameInterpolation.InitializationFlags.EnableDepthInverted) == FrameInterpolation.InitializationFlags.EnableDepthInverted;
+                commandBuffer.SetRenderTarget(_resources.ReconstructedDepth[doubleBufferId]);
+                commandBuffer.ClearRenderTarget(false, true, inverted ? Color.clear : Color.white);
+            }
+
+            int renderDispatchSizeX = (prepareDescription.renderSize.x + 7) / 8;
+            int renderDispatchSizeY = (prepareDescription.renderSize.y + 7) / 8;
+            _reconstructAndDilatePass.ScheduleDispatch(commandBuffer, prepareDescription, doubleBufferId, renderDispatchSizeX, renderDispatchSizeY);
+            
+            commandBuffer.EndSample(_prepareSampler);
+        }
+        
+        public void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchDescription)
+        {
+            commandBuffer.BeginSample(_sampler);
+
+            bool reset = _firstExecution || dispatchDescription.reset;
+            _firstExecution = false;
+            Assert.IsTrue(!_asyncSupported || reset || dispatchDescription.frameID > _previousFrameID,
+                "When async support is enabled, and the reset flag is not set, frame ID must increment in each dispatch.");
+
+            bool frameIdDecreased = dispatchDescription.frameID < _previousFrameID;
+            bool frameIdSkipped = (dispatchDescription.frameID - _previousFrameID) > 1;
+            bool disjointFrameId = frameIdDecreased || frameIdSkipped;
+            _previousFrameID = dispatchDescription.frameID;
+
+            ref var constants = ref _frameInterpolationConstants.Value;
+            constants.renderSize = dispatchDescription.renderSize;
+            constants.displaySize = dispatchDescription.displaySize;
+            constants.displaySizeRcp.x = 1.0f / dispatchDescription.displaySize.x;
+            constants.displaySizeRcp.y = 1.0f / dispatchDescription.displaySize.y;
+            constants.upscalerTargetSize = dispatchDescription.interpolationRect.size;
+            constants.mode = 0;
+            constants.reset = (reset || disjointFrameId) ? 1 : 0;
+            constants.deltaTime = dispatchDescription.frameTimeDelta;
+            constants.HUDLessAttachedFactor = dispatchDescription.currentBackBuffer_HUDLess.IsValid ? 1 : 0;
+
+            constants.opticalFlowScale = dispatchDescription.opticalFlowScale;
+            constants.opticalFlowBlockSize = dispatchDescription.opticalFlowBlockSize;
+            constants.dispatchFlags = (uint)dispatchDescription.flags;
+
+            constants.cameraNear = dispatchDescription.cameraNear;
+            constants.cameraFar = dispatchDescription.cameraFar;
+
+            constants.interpolationRectBase = dispatchDescription.interpolationRect.position;
+            constants.interpolationRectSize = dispatchDescription.interpolationRect.size;
+
+            // Debug bar
+            constants.debugBarColor.x = DebugBarColorSequence[_debugIndex * 3 + 0];
+            constants.debugBarColor.y = DebugBarColorSequence[_debugIndex * 3 + 1];
+            constants.debugBarColor.z = DebugBarColorSequence[_debugIndex * 3 + 2];
+            _debugIndex = (_debugIndex + 1) % (DebugBarColorSequence.Length / 3);
+
+            constants.backBufferTransferFunction = (uint)dispatchDescription.backbufferTransferFunction;
+            constants.minMaxLuminance = dispatchDescription.minMaxLuminance;
+
+            float aspectRatio = dispatchDescription.renderSize.x / (float)dispatchDescription.renderSize.y;
+            float cameraAngleHorizontal = Mathf.Atan(Mathf.Tan(dispatchDescription.cameraFovAngleVertical / 2) * aspectRatio) * 2;
+            constants.tanHalfFOV = Mathf.Tan(cameraAngleHorizontal * 0.5f);
+            
+            bool inverted = (_contextDescription.flags & FrameInterpolation.InitializationFlags.EnableDepthInverted) != 0;
+            bool infinite = (_contextDescription.flags & FrameInterpolation.InitializationFlags.EnableDepthInfinite) != 0;
+            constants.deviceToViewDepth = FfxUtils.SetupDeviceDepthToViewSpaceDepthParams(
+                dispatchDescription.renderSize, dispatchDescription.cameraNear, dispatchDescription.cameraFar, dispatchDescription.cameraFovAngleVertical, inverted, infinite);
+            
+            _frameInterpolationConstants.UpdateBufferData(commandBuffer);
+            
+            int doubleBufferId = _asyncSupported ? (int)(dispatchDescription.frameID & 1) : 0;
+            
+            int displayDispatchSizeX = (dispatchDescription.displaySize.x + 7) / 8;
+            int displayDispatchSizeY = (dispatchDescription.displaySize.y + 7) / 8;
+
+            int renderDispatchSizeX = (dispatchDescription.renderSize.x + 7) / 8;
+            int renderDispatchSizeY = (dispatchDescription.renderSize.y + 7) / 8;
+
+            int opticalFlowDispatchSizeX = (int)(dispatchDescription.displaySize.x / (float)dispatchDescription.opticalFlowBlockSize + 7) / 8;
+            int opticalFlowDispatchSizeY = (int)(dispatchDescription.displaySize.y / (float)dispatchDescription.opticalFlowBlockSize + 7) / 8;
+
+            bool executePreparationPasses = (constants.reset == 0);
+
+            // Schedule work for the interpolation command list
+            _setupPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, renderDispatchSizeX, renderDispatchSizeY);
+
+            // Only execute FG data preparation passes when reset wasn't triggered
+            if (executePreparationPasses)
+            {
+                // Clear estimated depth resources
+                commandBuffer.SetRenderTarget(_resources.ReconstructedDepthInterpolatedFrame);
+                commandBuffer.ClearRenderTarget(false, true, inverted ? Color.clear : Color.white);
+                
+                _reconstructPreviousDepthPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, renderDispatchSizeX, renderDispatchSizeY);
+                _gameMotionVectorFieldPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, renderDispatchSizeX, renderDispatchSizeY);
+                DispatchGameVectorFieldInpaintingPyramid(commandBuffer, dispatchDescription, doubleBufferId);
+                _opticalFlowVectorFieldPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, opticalFlowDispatchSizeX, opticalFlowDispatchSizeY);
+                _disocclusionMaskPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, renderDispatchSizeX, renderDispatchSizeY);
+            }
+            
+            _interpolationPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, displayDispatchSizeX, displayDispatchSizeY);
+            
+            // Inpainting pyramid
+            SetupSpdConstants(dispatchDescription.displaySize, out var dispatchThreadGroupCount);
+            _spdConstants.UpdateBufferData(commandBuffer);
+            _inpaintingPyramidPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+            
+            _inpaintingPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, displayDispatchSizeX, displayDispatchSizeY);
+
+            if ((dispatchDescription.flags & FrameInterpolation.DispatchFlags.DrawDebugView) != 0)
+            {
+                DispatchGameVectorFieldInpaintingPyramid(commandBuffer, dispatchDescription, doubleBufferId);
+                _debugViewPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, displayDispatchSizeX, displayDispatchSizeY);
+            }
+            
+            // Store current buffer
+            commandBuffer.CopyTexture(dispatchDescription.InterpolationSource.RenderTarget, _resources.PreviousInterpolationSource);
+
+            commandBuffer.EndSample(_sampler);
+        }
+
+        private void DispatchGameVectorFieldInpaintingPyramid(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchDescription, int doubleBufferId)
+        {
+            SetupSpdConstants(dispatchDescription.renderSize, out var dispatchThreadGroupCount);
+            _spdConstants.UpdateBufferData(commandBuffer);
+            _gameVectorFieldInpaintingPyramidPass.ScheduleDispatch(commandBuffer, dispatchDescription, doubleBufferId, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+        }
+        
+        private void SetupSpdConstants(Vector2Int resolution, out Vector2Int dispatchThreadGroupCount)
+        {
+            ref var spdConstants = ref _spdConstants.Value;
+            FfxSpd.SetupSpdConstants(resolution, ref spdConstants, out dispatchThreadGroupCount);
+            spdConstants.mips = Math.Min(spdConstants.mips, 7);
+        }
+
+        private int _debugIndex = 0;
+        private static readonly float[] DebugBarColorSequence =
+        {
+            0.0f, 1.0f, 1.0f, // teal
+            1.0f, 0.42f, 0.0f, // orange
+            0.0f, 0.16f, 1.0f, // blue
+            0.74f, 1.0f, 0.0f, // lime
+            0.68f, 0.0f, 1.0f, // purple
+            0.0f, 1.0f, 0.1f, // green
+            1.0f, 1.0f, 0.48f // bright yellow
+        };
+    }
+}

Runtime/FrameInterpolation/FrameInterpolationContext.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: e5dd3cf3772023443982f14a66852110
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/FrameInterpolation/FrameInterpolationPass.cs

@@ -0,0 +1,333 @@
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    internal abstract class FrameInterpolationPass: FfxPassWithFlags<FrameInterpolation.InitializationFlags>
+    {
+        protected readonly FrameInterpolationResources Resources;
+        protected readonly ComputeBuffer Constants;
+
+        protected FrameInterpolationPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants)
+            : base("Frame Interpolation", contextDescription.flags)
+        {
+            Resources = resources;
+            Constants = constants;
+        }
+
+        public void ScheduleDispatch(CommandBuffer commandBuffer, FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ = 1)
+        {
+            using (ProfilerSample(commandBuffer))
+            {
+                Dispatch(commandBuffer, dispatchParams, frameIndex, dispatchX, dispatchY, dispatchZ);
+            }
+        }
+
+        protected abstract void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ);
+
+        protected override void SetupShaderKeywords()
+        {
+            if ((Flags & FrameInterpolation.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0) ComputeShader.EnableKeyword("FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS");
+            if ((Flags & FrameInterpolation.InitializationFlags.EnableJitterMotionVectors) != 0) ComputeShader.EnableKeyword("FFX_FRAMEINTERPOLATION_OPTION_JITTERED_MOTION_VECTORS");
+            if ((Flags & FrameInterpolation.InitializationFlags.EnableDepthInverted) != 0) ComputeShader.EnableKeyword("FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH");
+        }
+    }
+
+    internal sealed class FrameInterpolationReconstructAndDilatePass : FrameInterpolationPass
+    {
+        public FrameInterpolationReconstructAndDilatePass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Reconstruct and Dilate", contextDescription.shaders.reconstructAndDilate);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+        }
+
+        public void ScheduleDispatch(CommandBuffer commandBuffer, FrameInterpolation.PrepareDescription prepareParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ = 1)
+        {
+            using (ProfilerSample(commandBuffer))
+            {
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInputMotionVectors, prepareParams.motionVectors);
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInputDepth, prepareParams.depth);
+
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavReconstructedDepthPreviousFrame, Resources.ReconstructedDepth[frameIndex]);
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDilatedDepth, Resources.DilatedDepth[frameIndex]);
+
+                commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+
+                commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+            }
+        }
+    }
+    
+    internal sealed class FrameInterpolationSetupPass : FrameInterpolationPass
+    {
+        public FrameInterpolationSetupPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Setup", contextDescription.shaders.setup);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowSceneChangeDetection, dispatchParams.opticalFlowSceneChangeDetection);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOpticalFlowMotionVectorFieldX, Resources.OpticalFlowMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOpticalFlowMotionVectorFieldY, Resources.OpticalFlowMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDisocclusionMask, Resources.DisocclusionMask);
+            commandBuffer.SetComputeBufferParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavCounters, Resources.Counters);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationReconstructPreviousDepthPass : FrameInterpolationPass
+    {
+        public FrameInterpolationReconstructPreviousDepthPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Reconstruct Previous Depth", contextDescription.shaders.reconstructPreviousDepth);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedDepth, Resources.DilatedDepth[frameIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavReconstructedDepthInterpolatedFrame, Resources.ReconstructedDepthInterpolatedFrame);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationGameMotionVectorFieldPass : FrameInterpolationPass
+    {
+        public FrameInterpolationGameMotionVectorFieldPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Game Motion Vector Field", contextDescription.shaders.gameMotionVectorField);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedDepth, Resources.DilatedDepth[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvPreviousInterpolationSource, Resources.PreviousInterpolationSource);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationOpticalFlowVectorFieldPass : FrameInterpolationPass
+    {
+        public FrameInterpolationOpticalFlowVectorFieldPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Optical Flow Vector Field", contextDescription.shaders.opticalFlowVectorField);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            if (dispatchParams.opticalFlowScale.x > 0f)
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowVector, dispatchParams.opticalFlowVector);
+            else
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowVector, BuiltinRenderTextureType.None);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowConfidence, BuiltinRenderTextureType.None);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedDepth, Resources.DilatedDepth[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvPreviousInterpolationSource, Resources.PreviousInterpolationSource);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOpticalFlowMotionVectorFieldX, Resources.OpticalFlowMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOpticalFlowMotionVectorFieldY, Resources.OpticalFlowMotionVectorFieldY);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationDisocclusionMaskPass : FrameInterpolationPass
+    {
+        public FrameInterpolationDisocclusionMaskPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Disocclusion Mask", contextDescription.shaders.disocclusionMask);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvReconstructedDepthPreviousFrame, Resources.ReconstructedDepth[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDilatedDepth, Resources.DilatedDepth[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvReconstructedDepthInterpolatedFrame, Resources.ReconstructedDepthInterpolatedFrame);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInpaintingPyramid, Resources.InpaintingPyramid);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavDisocclusionMask, Resources.DisocclusionMask);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationInterpolationPass : FrameInterpolationPass
+    {
+        public FrameInterpolationInterpolationPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Interpolation", contextDescription.shaders.interpolation);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowMotionVectorFieldX, Resources.OpticalFlowMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowMotionVectorFieldY, Resources.OpticalFlowMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvPreviousInterpolationSource, Resources.PreviousInterpolationSource);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDisocclusionMask, Resources.DisocclusionMask);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInpaintingPyramid, Resources.InpaintingPyramid);
+            commandBuffer.SetComputeBufferParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCounters, Resources.Counters);
+
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOutput, dispatchParams.output);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationInpaintingPyramidPass : FrameInterpolationPass
+    {
+        private readonly ComputeBuffer _spdConstants;
+        
+        public FrameInterpolationInpaintingPyramidPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants, ComputeBuffer spdConstants) 
+            : base(contextDescription, resources, constants)
+        {
+            _spdConstants = spdConstants;
+            
+            InitComputeShader("Inpainting Pyramid", contextDescription.shaders.inpaintingPyramid);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOutput, dispatchParams.output);
+
+            commandBuffer.SetComputeBufferParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavCounters, Resources.Counters);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap0, Resources.InpaintingPyramid, 0);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap1, Resources.InpaintingPyramid, 1);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap2, Resources.InpaintingPyramid, 2);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap3, Resources.InpaintingPyramid, 3);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap4, Resources.InpaintingPyramid, 4);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap5, Resources.InpaintingPyramid, 5);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap6, Resources.InpaintingPyramid, 6);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            commandBuffer.SetComputeConstantBufferParam<FfxSpd.SpdConstants>(ComputeShader, FrameInterpolationShaderIDs.CbInpaintingPyramid, _spdConstants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationInpaintingPass : FrameInterpolationPass
+    {
+        public FrameInterpolationInpaintingPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Inpainting", contextDescription.shaders.inpainting);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowSceneChangeDetection, dispatchParams.opticalFlowSceneChangeDetection);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInpaintingPyramid, Resources.InpaintingPyramid);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvPresentBackbuffer, dispatchParams.currentBackBuffer);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+            
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOutput, dispatchParams.output);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationGameVectorFieldInpaintingPyramidPass : FrameInterpolationPass
+    {
+        private readonly ComputeBuffer _spdConstants;
+        
+        public FrameInterpolationGameVectorFieldInpaintingPyramidPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants, ComputeBuffer spdConstants) 
+            : base(contextDescription, resources, constants)
+        {
+            _spdConstants = spdConstants;
+            
+            InitComputeShader("Game Vector Field Inpainting Pyramid", contextDescription.shaders.gameVectorFieldInpaintingPyramid);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+
+            commandBuffer.SetComputeBufferParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavCounters, Resources.Counters);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap0, Resources.InpaintingPyramid, 0);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap1, Resources.InpaintingPyramid, 1);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap2, Resources.InpaintingPyramid, 2);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap3, Resources.InpaintingPyramid, 3);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap4, Resources.InpaintingPyramid, 4);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap5, Resources.InpaintingPyramid, 5);
+            commandBuffer.SetComputeTextureMipParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavInpaintingPyramidMipmap6, Resources.InpaintingPyramid, 6);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            commandBuffer.SetComputeConstantBufferParam<FfxSpd.SpdConstants>(ComputeShader, FrameInterpolationShaderIDs.CbInpaintingPyramid, _spdConstants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+    
+    internal sealed class FrameInterpolationDebugViewPass : FrameInterpolationPass
+    {
+        public FrameInterpolationDebugViewPass(in FrameInterpolation.ContextDescription contextDescription, FrameInterpolationResources resources, ComputeBuffer constants) 
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Debug View", contextDescription.shaders.debugView);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in FrameInterpolation.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldX, Resources.GameMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvGameMotionVectorFieldY, Resources.GameMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowMotionVectorFieldX, Resources.OpticalFlowMotionVectorFieldX);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvOpticalFlowMotionVectorFieldY, Resources.OpticalFlowMotionVectorFieldY);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvDisocclusionMask, Resources.DisocclusionMask);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvPresentBackbuffer, dispatchParams.currentBackBuffer);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvInpaintingPyramid, Resources.InpaintingPyramid);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.SrvCurrentInterpolationSource, dispatchParams.InterpolationSource);
+            
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, FrameInterpolationShaderIDs.UavOutput, dispatchParams.output);
+            
+            commandBuffer.SetComputeConstantBufferParam<FrameInterpolation.Constants>(ComputeShader, FrameInterpolationShaderIDs.CbFrameInterpolation, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+}

Runtime/FrameInterpolation/FrameInterpolationPass.cs.meta

@@ -0,0 +1,11 @@
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Runtime/FrameInterpolation/FrameInterpolationResources.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Experimental.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    internal class FrameInterpolationResources: FfxResourcesBase
+    {
+        public RenderTexture ReconstructedDepthInterpolatedFrame;
+        public RenderTexture GameMotionVectorFieldX;
+        public RenderTexture GameMotionVectorFieldY;
+        public RenderTexture InpaintingPyramid;
+        public ComputeBuffer Counters;
+        public RenderTexture OpticalFlowMotionVectorFieldX;
+        public RenderTexture OpticalFlowMotionVectorFieldY;
+        public RenderTexture PreviousInterpolationSource;
+        public RenderTexture DisocclusionMask;
+        
+        public readonly RenderTexture[] DilatedDepth = new RenderTexture[2];
+        public readonly RenderTexture[] DilatedMotionVectors = new RenderTexture[2];
+        public readonly RenderTexture[] ReconstructedDepth = new RenderTexture[2];
+        
+        public void Create(in FrameInterpolation.ContextDescription contextDescription)
+        {
+            Vector2Int displaySize = contextDescription.displaySize;
+            Vector2Int displaySizeDiv2 = new Vector2Int(displaySize.x / 2, displaySize.y / 2);
+            Vector2Int maxRenderSize = contextDescription.maxRenderSize;
+
+            ReconstructedDepthInterpolatedFrame = CreateResource("FI_ReconstructedDepthInterpolatedFrame", maxRenderSize, GraphicsFormat.R32_UInt);
+            GameMotionVectorFieldX = CreateResource("FI_GameMotionVectorFieldX", maxRenderSize, GraphicsFormat.R32_UInt);
+            GameMotionVectorFieldY = CreateResource("FI_GameMotionVectorFieldY", maxRenderSize, GraphicsFormat.R32_UInt);
+            InpaintingPyramid = CreateResourceMips("FI_InpaintingPyramid", displaySizeDiv2, GraphicsFormat.R16G16B16A16_SFloat);
+            Counters = CreateBuffer<uint>("FI_Counters", 2);    // structured buffer containing 2 UINT values
+            OpticalFlowMotionVectorFieldX = CreateResource("FI_OpticalFlowMotionVectorFieldX", maxRenderSize, GraphicsFormat.R32_UInt);
+            OpticalFlowMotionVectorFieldY = CreateResource("FI_OpticalFlowMotionVectorFieldY", maxRenderSize, GraphicsFormat.R32_UInt);
+            PreviousInterpolationSource = CreateResource("FI_PreviousInterpolationSource", displaySize, contextDescription.backBufferFormat);
+            DisocclusionMask = CreateResource("FI_DisocclusionMask", maxRenderSize, GraphicsFormat.R8G8_UNorm);
+
+            // Double buffering is used only when async support is enabled
+            int numBuffers = (contextDescription.flags & FrameInterpolation.InitializationFlags.EnableAsyncSupport) != 0 ? 2 : 1;
+            CreateDoubleBufferedResource(DilatedDepth, "FI_DilatedDepth_", maxRenderSize, GraphicsFormat.R32_SFloat, numBuffers);
+            CreateDoubleBufferedResource(DilatedMotionVectors, "FI_DilatedMVs_", maxRenderSize, GraphicsFormat.R16G16_SFloat, numBuffers);
+            CreateDoubleBufferedResource(ReconstructedDepth, "FI_ReconstructedDepth_", maxRenderSize, GraphicsFormat.R32_UInt, numBuffers);
+        }
+        
+        public void Destroy()
+        {
+            DestroyResource(ReconstructedDepth);
+            DestroyResource(DilatedMotionVectors);
+            DestroyResource(DilatedDepth);
+            
+            DestroyResource(ref DisocclusionMask);
+            DestroyResource(ref PreviousInterpolationSource);
+            DestroyResource(ref OpticalFlowMotionVectorFieldY);
+            DestroyResource(ref OpticalFlowMotionVectorFieldX);
+            DestroyResource(ref Counters);
+            DestroyResource(ref InpaintingPyramid);
+            DestroyResource(ref GameMotionVectorFieldY);
+            DestroyResource(ref GameMotionVectorFieldX);
+            DestroyResource(ref ReconstructedDepthInterpolatedFrame);
+        }
+    }
+}

Runtime/FrameInterpolation/FrameInterpolationResources.cs.meta

@@ -0,0 +1,11 @@
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+  assetBundleVariant: 

Runtime/FrameInterpolation/FrameInterpolationShaderIDs.cs

@@ -0,0 +1,60 @@
+using UnityEngine;
+
+namespace FidelityFX.FrameGen
+{
+    public static class FrameInterpolationShaderIDs
+    {
+        // Shader resource views, i.e. read-only bindings
+        public static readonly int SrvInputDepth = Shader.PropertyToID("r_input_depth");
+        public static readonly int SrvInputMotionVectors = Shader.PropertyToID("r_input_motion_vectors");
+        public static readonly int SrvDilatedDepth = Shader.PropertyToID("r_dilated_depth");
+        public static readonly int SrvDilatedMotionVectors = Shader.PropertyToID("r_dilated_motion_vectors");
+        public static readonly int SrvReconstructedDepthPreviousFrame = Shader.PropertyToID("r_reconstructed_depth_previous_frame");
+        public static readonly int SrvReconstructedDepthInterpolatedFrame = Shader.PropertyToID("r_reconstructed_depth_interpolated_frame");
+        public static readonly int SrvPreviousInterpolationSource = Shader.PropertyToID("r_previous_interpolation_source");
+        public static readonly int SrvCurrentInterpolationSource = Shader.PropertyToID("r_current_interpolation_source");
+        public static readonly int SrvDisocclusionMask = Shader.PropertyToID("r_disocclusion_mask");
+        public static readonly int SrvGameMotionVectorFieldX = Shader.PropertyToID("r_game_motion_vector_field_x");
+        public static readonly int SrvGameMotionVectorFieldY = Shader.PropertyToID("r_game_motion_vector_field_y");
+        public static readonly int SrvOpticalFlowMotionVectorFieldX = Shader.PropertyToID("r_optical_flow_motion_vector_field_x");
+        public static readonly int SrvOpticalFlowMotionVectorFieldY = Shader.PropertyToID("r_optical_flow_motion_vector_field_y");
+        public static readonly int SrvOpticalFlowVector = Shader.PropertyToID("r_optical_flow");
+        public static readonly int SrvOpticalFlowConfidence = Shader.PropertyToID("r_optical_flow_confidence");
+        public static readonly int SrvOpticalFlowGlobalMotion = Shader.PropertyToID("r_optical_flow_global_motion");
+        public static readonly int SrvOpticalFlowSceneChangeDetection = Shader.PropertyToID("r_optical_flow_scd");
+        public static readonly int SrvOutput = Shader.PropertyToID("r_output");
+        public static readonly int SrvInpaintingPyramid = Shader.PropertyToID("r_inpainting_pyramid");
+        public static readonly int SrvPresentBackbuffer = Shader.PropertyToID("r_present_backbuffer");
+        public static readonly int SrvCounters = Shader.PropertyToID("r_counters");
+        
+        // Unordered access views, i.e. random read/write bindings
+        public static readonly int UavDilatedDepth = Shader.PropertyToID("rw_dilated_depth");
+        public static readonly int UavDilatedMotionVectors = Shader.PropertyToID("rw_dilated_motion_vectors");
+        public static readonly int UavReconstructedDepthPreviousFrame = Shader.PropertyToID("rw_reconstructed_depth_previous_frame");
+        public static readonly int UavReconstructedDepthInterpolatedFrame = Shader.PropertyToID("rw_reconstructed_depth_interpolated_frame");
+        public static readonly int UavOutput = Shader.PropertyToID("rw_output");
+        public static readonly int UavDisocclusionMask = Shader.PropertyToID("rw_disocclusion_mask");
+        public static readonly int UavGameMotionVectorFieldX = Shader.PropertyToID("rw_game_motion_vector_field_x");
+        public static readonly int UavGameMotionVectorFieldY = Shader.PropertyToID("rw_game_motion_vector_field_y");
+        public static readonly int UavOpticalFlowMotionVectorFieldX = Shader.PropertyToID("rw_optical_flow_motion_vector_field_x");
+        public static readonly int UavOpticalFlowMotionVectorFieldY = Shader.PropertyToID("rw_optical_flow_motion_vector_field_y");
+        public static readonly int UavCounters = Shader.PropertyToID("rw_counters");
+        public static readonly int UavInpaintingPyramidMipmap0 = Shader.PropertyToID("rw_inpainting_pyramid0");
+        public static readonly int UavInpaintingPyramidMipmap1 = Shader.PropertyToID("rw_inpainting_pyramid1");
+        public static readonly int UavInpaintingPyramidMipmap2 = Shader.PropertyToID("rw_inpainting_pyramid2");
+        public static readonly int UavInpaintingPyramidMipmap3 = Shader.PropertyToID("rw_inpainting_pyramid3");
+        public static readonly int UavInpaintingPyramidMipmap4 = Shader.PropertyToID("rw_inpainting_pyramid4");
+        public static readonly int UavInpaintingPyramidMipmap5 = Shader.PropertyToID("rw_inpainting_pyramid5");
+        public static readonly int UavInpaintingPyramidMipmap6 = Shader.PropertyToID("rw_inpainting_pyramid6");
+        public static readonly int UavInpaintingPyramidMipmap7 = Shader.PropertyToID("rw_inpainting_pyramid7");
+        public static readonly int UavInpaintingPyramidMipmap8 = Shader.PropertyToID("rw_inpainting_pyramid8");
+        public static readonly int UavInpaintingPyramidMipmap9 = Shader.PropertyToID("rw_inpainting_pyramid9");
+        public static readonly int UavInpaintingPyramidMipmap10 = Shader.PropertyToID("rw_inpainting_pyramid10");
+        public static readonly int UavInpaintingPyramidMipmap11 = Shader.PropertyToID("rw_inpainting_pyramid11");
+        public static readonly int UavInpaintingPyramidMipmap12 = Shader.PropertyToID("rw_inpainting_pyramid12");
+        
+        // Constant buffer bindings
+        public static readonly int CbFrameInterpolation = Shader.PropertyToID("cbFI");
+        public static readonly int CbInpaintingPyramid = Shader.PropertyToID("cbInpaintingPyramid");
+    }
+}

Runtime/FrameInterpolation/FrameInterpolationShaderIDs.cs.meta

@@ -0,0 +1,11 @@
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Runtime/OpticalFlow.meta

@@ -0,0 +1,8 @@
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Runtime/OpticalFlow/OpticalFlow.cs

@@ -0,0 +1,102 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+
+namespace FidelityFX.FrameGen
+{
+    public static class OpticalFlow
+    {
+        internal const int MinBlockSize = 8;
+        internal const int OpticalFlowMaxPyramidLevels = 7;
+        internal const int HistogramBins = 256;
+        internal const int HistogramsPerDim = 3;
+        internal const int HistogramShifts = 3;
+        
+        public static OpticalFlowContext CreateContext(Vector2Int resolution, OpticalFlowShaders shaders)
+        {
+            Debug.Log($"Setting up Optical Flow with resolution: {resolution.x}x{resolution.y}");
+            
+            var contextDescription = new ContextDescription
+            {
+                resolution = resolution,
+                shaders = shaders,
+            };
+            
+            var context = new OpticalFlowContext();
+            context.Create(contextDescription);
+            return context;
+        }
+        
+        public struct ContextDescription
+        {
+            public Vector2Int resolution;
+            public OpticalFlowShaders shaders;
+        }
+
+        public struct DispatchDescription
+        {
+            public ResourceView color;
+            public ResourceView opticalFlowVector;
+            public ResourceView opticalFlowSCD;
+            public bool reset;
+            
+            public BackbufferTransferFunction backbufferTransferFunction;
+            public Vector2 minMaxLuminance;
+        }
+
+        internal static Vector2Int GetOpticalFlowTextureSize(Vector2Int displaySize, int opticalFlowBlockSize)
+        {
+            int width = (displaySize.x + opticalFlowBlockSize - 1) / opticalFlowBlockSize;
+            int height = (displaySize.y + opticalFlowBlockSize - 1) / opticalFlowBlockSize;
+            return new Vector2Int(width, height);
+        }
+
+        internal static Vector2Int GetOpticalFlowHistogramSize(int level)
+        {
+            const int searchRadius = 8;
+            int maxVelocity = searchRadius * (1 << (OpticalFlowMaxPyramidLevels - 1 - level));
+            int binsPerDimension = 2 * maxVelocity + 1;
+            return new Vector2Int(binsPerDimension, binsPerDimension);
+        }
+
+        internal static Vector2Int GetGlobalMotionSearchDispatchSize(int level)
+        {
+            const int threadGroupSizeX = 16;
+            const int threadGroupSizeY = 16;
+            Vector2Int opticalFlowHistogramSize = GetOpticalFlowHistogramSize(level);
+            int additionalElementsDueToShiftsX = opticalFlowHistogramSize.x / threadGroupSizeX;
+            int additionalElementsDueToShiftsY = opticalFlowHistogramSize.y / threadGroupSizeY;
+            int dispatchX = (opticalFlowHistogramSize.x + additionalElementsDueToShiftsX + threadGroupSizeX - 1) / threadGroupSizeX;
+            int dispatchY = (opticalFlowHistogramSize.y + additionalElementsDueToShiftsY + threadGroupSizeY - 1) / threadGroupSizeY;
+            return new Vector2Int(dispatchX, dispatchY);
+        }
+
+        internal static int GetSCDHistogramTextureWidth()
+        {
+            return HistogramBins * (HistogramsPerDim * HistogramsPerDim);
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct OpticalFlowConstants
+        {
+            public Vector2Int inputLumaResolution;
+            public uint opticalFlowPyramidLevel;
+            public uint opticalFlowPyramidLevelCount;
+
+            public int frameIndex;
+            public uint backbufferTransferFunction;
+            public Vector2 minMaxLuminance;
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct SpdConstants
+        {
+            public FfxSpd.SpdConstants spd;
+
+            public uint numWorkGroupsOpticalFlowInputPyramid;
+            public uint pad0_;
+            public uint pad1_;
+            public uint pad2_;
+        }
+    }
+}

Runtime/OpticalFlow/OpticalFlow.cs.meta

@@ -0,0 +1,11 @@
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+  assetBundleVariant: 

Runtime/OpticalFlow/OpticalFlowAssets.cs

@@ -0,0 +1,144 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+using UnityEngine;
+
+namespace FidelityFX.FrameGen
+{
+    /// <summary>
+    /// Scriptable object containing all shader resources required by FidelityFX Optical Flow.
+    /// These can be stored in an asset file and referenced from a scene or prefab, avoiding the need to load the shaders from a Resources folder.
+    /// </summary>
+    [CreateAssetMenu(fileName = "Optical Flow Assets", menuName = "FidelityFX/Optical Flow Assets", order = 1111)]
+    public class OpticalFlowAssets : ScriptableObject
+    {
+        public OpticalFlowShaders shaders;
+        
+#if UNITY_EDITOR
+        private void Reset()
+        {
+            shaders = new OpticalFlowShaders
+            {
+                generateOpticalFlowInputPyramid = FindComputeShader("ffx_opticalflow_compute_luminance_pyramid_pass"),
+                prepareLuma = FindComputeShader("ffx_opticalflow_prepare_luma_pass"),
+                generateScdHistogram = FindComputeShader("ffx_opticalflow_generate_scd_histogram_pass"),
+                computeScdDivergence = FindComputeShader("ffx_opticalflow_compute_scd_divergence_pass"),
+                computeOpticalFlow = FindComputeShader("ffx_opticalflow_compute_optical_flow_advanced_pass_v5"),
+                filterOpticalFlow = FindComputeShader("ffx_opticalflow_filter_optical_flow_pass_v5"),
+                scaleOpticalFlow = FindComputeShader("ffx_opticalflow_scale_optical_flow_advanced_pass_v5"),
+            };
+        }
+
+        private static ComputeShader FindComputeShader(string name)
+        {
+            string[] assetGuids = UnityEditor.AssetDatabase.FindAssets($"t:ComputeShader {name}");
+            if (assetGuids == null || assetGuids.Length == 0)
+                return null;
+
+            string assetPath = UnityEditor.AssetDatabase.GUIDToAssetPath(assetGuids[0]);
+            return UnityEditor.AssetDatabase.LoadAssetAtPath<ComputeShader>(assetPath);
+        }
+#endif
+    }
+    
+    /// <summary>
+    /// All the compute shaders used by Optical Flow.
+    /// </summary>
+    [System.Serializable]
+    public class OpticalFlowShaders
+    {
+        /// <summary>
+        /// The compute shader used by the generate optical flow input pass.
+        /// </summary>
+        public ComputeShader generateOpticalFlowInputPyramid;
+
+        /// <summary>
+        /// The compute shader used by the prepare luma pass.
+        /// </summary>
+        public ComputeShader prepareLuma;
+
+        /// <summary>
+        /// The compute shader used by the generate scene change detection histogram pass.
+        /// </summary>
+        public ComputeShader generateScdHistogram;
+
+        /// <summary>
+        /// The compute shader used by the compute scene change detection divergence pass.
+        /// </summary>
+        public ComputeShader computeScdDivergence;
+
+        /// <summary>
+        /// The compute shader used by the compute optical flow pass.
+        /// </summary>
+        public ComputeShader computeOpticalFlow;
+
+        /// <summary>
+        /// The compute shader used by the filter optical flow pass.
+        /// </summary>
+        public ComputeShader filterOpticalFlow;
+
+        /// <summary>
+        /// The compute shader used by the scale optical flow mask.
+        /// </summary>
+        public ComputeShader scaleOpticalFlow;
+        
+        /// <summary>
+        /// Returns a copy of this class and its contents.
+        /// </summary>
+        public OpticalFlowShaders Clone()
+        {
+            return (OpticalFlowShaders)MemberwiseClone();
+        }
+
+        /// <summary>
+        /// Returns a copy of this class with clones of all its shaders.
+        /// This can be useful if you're running multiple Optical Flow instances with different shader configurations.
+        /// Be sure to clean up these clones through Dispose once you're done with them.
+        /// </summary>
+        public OpticalFlowShaders DeepCopy()
+        {
+            return new OpticalFlowShaders
+            {
+                generateOpticalFlowInputPyramid = Object.Instantiate(generateOpticalFlowInputPyramid),
+                prepareLuma = Object.Instantiate(prepareLuma),
+                generateScdHistogram = Object.Instantiate(generateScdHistogram),
+                computeScdDivergence = Object.Instantiate(computeScdDivergence),
+                computeOpticalFlow = Object.Instantiate(computeOpticalFlow),
+                filterOpticalFlow = Object.Instantiate(filterOpticalFlow),
+                scaleOpticalFlow = Object.Instantiate(scaleOpticalFlow),
+            };
+        }
+
+        /// <summary>
+        /// Destroy all the shaders within this instance.
+        /// Use this only on clones created through DeepCopy.
+        /// </summary>
+        public void Dispose()
+        {
+            Object.Destroy(scaleOpticalFlow);
+            Object.Destroy(filterOpticalFlow);
+            Object.Destroy(computeOpticalFlow);
+            Object.Destroy(computeScdDivergence);
+            Object.Destroy(generateScdHistogram);
+            Object.Destroy(prepareLuma);
+            Object.Destroy(generateOpticalFlowInputPyramid);
+        }
+    }
+}

Runtime/OpticalFlow/OpticalFlowAssets.cs.meta

@@ -0,0 +1,11 @@
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/OpticalFlow/OpticalFlowContext.cs

@@ -0,0 +1,228 @@
+using System;
+using UnityEngine;
+using UnityEngine.Assertions;
+using UnityEngine.Profiling;
+using UnityEngine.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    public class OpticalFlowContext: FfxContextBase
+    {
+        private const int MaxQueuedFrames = 16;
+
+        public int BlockSize => OpticalFlow.MinBlockSize;
+        public Vector2Int TextureSize => OpticalFlow.GetOpticalFlowTextureSize(_contextDescription.resolution, OpticalFlow.MinBlockSize);
+        
+        private OpticalFlow.ContextDescription _contextDescription;
+        
+        private OpticalFlowPrepareLumaPass _prepareLumaPass;
+        private OpticalFlowGenerateInputPyramidPass _generateInputPyramidPass;
+        private OpticalFlowGenerateSCDHistogramPass _generateScdHistogramPass;
+        private OpticalFlowComputeSCDDivergencePass _computeScdDivergencePass;
+        private OpticalFlowComputePass _computeOpticalFlowPass;
+        private OpticalFlowFilterPass _filterOpticalFlowPass;
+        private OpticalFlowScalePass _scaleOpticalFlowPass;
+
+        private readonly OpticalFlowResources _resources = new OpticalFlowResources();
+
+        private readonly ConstantsBuffer<OpticalFlow.OpticalFlowConstants> _opticalFlowConstants = new ConstantsBuffer<OpticalFlow.OpticalFlowConstants>();
+        private readonly ConstantsBuffer<OpticalFlow.SpdConstants> _spdConstants = new ConstantsBuffer<OpticalFlow.SpdConstants>();
+        
+        private bool _firstExecution;
+        private int _resourceFrameIndex;
+        private readonly Vector2Int[] _opticalFlowTextureSizes = new Vector2Int[OpticalFlow.OpticalFlowMaxPyramidLevels];
+        
+        private readonly CustomSampler _sampler = CustomSampler.Create("Optical Flow");
+
+        public void Create(in OpticalFlow.ContextDescription contextDescription)
+        {
+            _contextDescription = contextDescription;
+
+            _opticalFlowConstants.Create();
+            _spdConstants.Create();
+
+            _firstExecution = true;
+            _resourceFrameIndex = 0;
+
+            _opticalFlowConstants.Value.inputLumaResolution = _contextDescription.resolution;
+            
+            _resources.Create(_contextDescription);
+            CreatePasses();
+        }
+
+        private void CreatePasses()
+        {
+            _prepareLumaPass = new OpticalFlowPrepareLumaPass(_contextDescription, _resources, _opticalFlowConstants);
+            _generateInputPyramidPass = new OpticalFlowGenerateInputPyramidPass(_contextDescription, _resources, _opticalFlowConstants, _spdConstants);
+            _generateScdHistogramPass = new OpticalFlowGenerateSCDHistogramPass(_contextDescription, _resources, _opticalFlowConstants);
+            _computeScdDivergencePass = new OpticalFlowComputeSCDDivergencePass(_contextDescription, _resources, _opticalFlowConstants);
+            _computeOpticalFlowPass = new OpticalFlowComputePass(_contextDescription, _resources, _opticalFlowConstants);
+            _filterOpticalFlowPass = new OpticalFlowFilterPass(_contextDescription, _resources, _opticalFlowConstants);
+            _scaleOpticalFlowPass = new OpticalFlowScalePass(_contextDescription, _resources, _opticalFlowConstants);
+        }
+
+        public void Destroy()
+        {
+            DestroyPass(ref _scaleOpticalFlowPass);
+            DestroyPass(ref _filterOpticalFlowPass);
+            DestroyPass(ref _computeOpticalFlowPass);
+            DestroyPass(ref _computeScdDivergencePass);
+            DestroyPass(ref _generateScdHistogramPass);
+            DestroyPass(ref _generateInputPyramidPass);
+            DestroyPass(ref _prepareLumaPass);
+            
+            _resources.Destroy();
+            
+            _spdConstants.Destroy();
+            _opticalFlowConstants.Destroy();
+        }
+        
+        public void Dispatch(CommandBuffer commandBuffer, OpticalFlow.DispatchDescription dispatchDescription)
+        {
+            const int advancedAlgorithmIterations = 7;
+            const int opticalFlowBlockSize = 8;
+
+            ref var constants = ref _opticalFlowConstants.Value;
+            constants.backbufferTransferFunction = (uint)dispatchDescription.backbufferTransferFunction;
+            constants.minMaxLuminance = dispatchDescription.minMaxLuminance;
+
+            int frameIndex = _resourceFrameIndex % 2;
+            bool resetAccumulation = dispatchDescription.reset || _firstExecution;
+            _firstExecution = false;
+
+            if (resetAccumulation)
+                constants.frameIndex = 0;
+            else
+                constants.frameIndex++;
+            
+            commandBuffer.BeginSample(_sampler);
+
+            if (resetAccumulation)
+            {
+                commandBuffer.SetRenderTarget(_resources.OpticalFlowSCDTemp);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(dispatchDescription.opticalFlowSCD.RenderTarget);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(_resources.OpticalFlowSCDHistogram);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(_resources.OpticalFlowSCDPreviousHistogram);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                for (int i = 0; i < 2; ++i)
+                {
+                    for (int level = 0; level < OpticalFlow.OpticalFlowMaxPyramidLevels; ++level)
+                    {
+                        commandBuffer.SetRenderTarget(_resources.OpticalFlowInputLevels[level][i]);
+                        commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                    }
+                }
+            }
+
+            SetupSpdConstants(out var threadGroupSizeOpticalFlowInputPyramid);
+            
+            _opticalFlowConstants.UpdateBufferData(commandBuffer);
+            _spdConstants.UpdateBufferData(commandBuffer);
+
+            {
+                const int threadGroupSizeX = 16;
+                const int threadGroupSizeY = 16;
+                const int threadPixelsX = 2;
+                const int threadPixelsY = 2;
+                int dispatchX = ((_contextDescription.resolution.x + (threadPixelsX - 1)) / threadPixelsX + (threadGroupSizeX - 1)) / threadGroupSizeX;
+                int dispatchY = ((_contextDescription.resolution.y + (threadPixelsY - 1)) / threadPixelsY + (threadGroupSizeY - 1)) / threadGroupSizeY;
+                _prepareLumaPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, 0, dispatchX, dispatchY);
+            }
+            
+            _generateInputPyramidPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, 0, threadGroupSizeOpticalFlowInputPyramid.x, threadGroupSizeOpticalFlowInputPyramid.y);
+
+            {
+                const int threadGroupSizeX = 32;
+                //const int threadGroupSizeY = 8;
+                int strataWidth = (_contextDescription.resolution.x / 4) / OpticalFlow.HistogramsPerDim;
+                int strataHeight = _contextDescription.resolution.y / OpticalFlow.HistogramsPerDim;
+                int dispatchX = (strataWidth + threadGroupSizeX - 1) / threadGroupSizeX;
+                const int dispatchY = 16;
+                const int dispatchZ = OpticalFlow.HistogramsPerDim * OpticalFlow.HistogramsPerDim;
+                _generateScdHistogramPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, 0, dispatchX, dispatchY, dispatchZ);
+            }
+            {
+                const int dispatchX = OpticalFlow.HistogramsPerDim * OpticalFlow.HistogramsPerDim;
+                const int dispatchY = OpticalFlow.HistogramShifts;
+                _computeScdDivergencePass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, 0, dispatchX, dispatchY);
+            }
+
+            const int pyramidMaxIterations = advancedAlgorithmIterations;
+            Assert.IsTrue(pyramidMaxIterations <= OpticalFlow.OpticalFlowMaxPyramidLevels);
+
+            _opticalFlowTextureSizes[0] = OpticalFlow.GetOpticalFlowTextureSize(_contextDescription.resolution, opticalFlowBlockSize);
+            for (int i = 1; i < pyramidMaxIterations; ++i)
+            {
+                _opticalFlowTextureSizes[i] = new Vector2Int(
+                    (_opticalFlowTextureSizes[i - 1].x + 1) / 2,
+                    (_opticalFlowTextureSizes[i - 1].y + 1) / 2
+                );
+            }
+
+            for (int level = pyramidMaxIterations - 1; level >= 0; --level)
+            {
+                constants.opticalFlowPyramidLevel = (uint)level;
+                constants.opticalFlowPyramidLevelCount = pyramidMaxIterations;
+                _opticalFlowConstants.UpdateBufferData(commandBuffer);
+
+                {
+                    int inputLumaWidth = Math.Max(_contextDescription.resolution.x >> level, 1);
+                    int inputLumaHeight = Math.Max(_contextDescription.resolution.y >> level, 1);
+                    
+                    const int threadPixels = 4;
+                    Assert.IsTrue(opticalFlowBlockSize >= threadPixels);
+                    //const int threadGroupSizeX = 4;
+                    const int threadGroupSizeY = 16;
+                    const int threadGroupSize = 64;
+                    int dispatchX = ((inputLumaWidth + threadPixels - 1) / threadPixels * threadGroupSizeY + (threadGroupSize - 1)) / threadGroupSize;
+                    int dispatchY = (inputLumaHeight + (threadGroupSizeY - 1)) / threadGroupSizeY;
+                    
+                    _computeOpticalFlowPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, level, dispatchX, dispatchY);
+                }
+
+                {
+                    int levelWidth = _opticalFlowTextureSizes[level].x;
+                    int levelHeight = _opticalFlowTextureSizes[level].y;
+                    
+                    const int threadGroupSizeX = 16;
+                    const int threadGroupSizeY = 4;
+                    int dispatchX = (levelWidth + threadGroupSizeX - 1) / threadGroupSizeX;
+                    int dispatchY = (levelHeight + threadGroupSizeY - 1) / threadGroupSizeY;
+                    
+                    _filterOpticalFlowPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, level, dispatchX, dispatchY);
+                }
+
+                if (level > 0)
+                {
+                    int nextLevelWidth = _opticalFlowTextureSizes[level - 1].x;
+                    int nextLevelHeight = _opticalFlowTextureSizes[level - 1].y;
+                    
+                    const int threadGroupSizeX = opticalFlowBlockSize / 2;
+                    const int threadGroupSizeY = opticalFlowBlockSize / 2;
+                    //const int threadGroupSizeZ = 4;
+                    int dispatchX = (nextLevelWidth + threadGroupSizeX - 1) / threadGroupSizeX;
+                    int dispatchY = (nextLevelHeight + threadGroupSizeY - 1) / threadGroupSizeY;
+                    const int dispatchZ = 1;
+                    
+                    _scaleOpticalFlowPass.ScheduleDispatch(commandBuffer, dispatchDescription, frameIndex, level, dispatchX, dispatchY, dispatchZ);
+                }
+            }
+            
+            commandBuffer.EndSample(_sampler);
+
+            _resourceFrameIndex = (_resourceFrameIndex + 1) % MaxQueuedFrames;
+        }
+        
+        private void SetupSpdConstants(out Vector2Int dispatchThreadGroupCount)
+        {
+            const int resolutionMultiplier = 1;
+            
+            ref OpticalFlow.SpdConstants spdConstants = ref _spdConstants.Value;
+            FfxSpd.SetupSpdConstants(_contextDescription.resolution * resolutionMultiplier, ref spdConstants.spd, out dispatchThreadGroupCount);
+            spdConstants.numWorkGroupsOpticalFlowInputPyramid = spdConstants.spd.numWorkGroups;
+        }
+    }
+}

Runtime/OpticalFlow/OpticalFlowContext.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: baebcaebda3cbd344a546d7f3c47ae0d
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Runtime/OpticalFlow/OpticalFlowPass.cs

@@ -0,0 +1,200 @@
+using System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Profiling;
+using UnityEngine.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    internal abstract class OpticalFlowPass: FfxPassBase
+    {
+        protected readonly OpticalFlowResources Resources;
+        protected readonly ComputeBuffer Constants;
+        
+        protected OpticalFlowPass(OpticalFlowResources resources, ComputeBuffer constants)
+            : base("Optical Flow")
+        {
+            Resources = resources;
+            Constants = constants;
+        }
+        
+        public void ScheduleDispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ = 1)
+        {
+            using (ProfilerSample(commandBuffer))
+            {
+                Dispatch(commandBuffer, dispatchParams, bufferIndex, level, dispatchX, dispatchY, dispatchZ);
+            }
+        }
+        
+        protected abstract void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ);
+    }
+
+    internal sealed class OpticalFlowPrepareLumaPass : OpticalFlowPass
+    {
+        public OpticalFlowPrepareLumaPass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants) 
+            : base(resources, constants)
+        {
+            InitComputeShader("Prepare Luma", contextDescription.shaders.prepareLuma);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvInputColor, dispatchParams.color);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInput, Resources.OpticalFlowInputLevels[0][bufferIndex]);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowGenerateInputPyramidPass : OpticalFlowPass
+    {
+        private ComputeBuffer _spdConstants;
+        
+        public OpticalFlowGenerateInputPyramidPass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants, ComputeBuffer spdConstants) 
+            : base(resources, constants)
+        {
+            _spdConstants = spdConstants;
+            InitComputeShader("Generate Optical Flow Input Pyramid", contextDescription.shaders.generateOpticalFlowInputPyramid);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInput, Resources.OpticalFlowInputLevels[0][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel1, Resources.OpticalFlowInputLevels[1][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel2, Resources.OpticalFlowInputLevels[2][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel3, Resources.OpticalFlowInputLevels[3][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel4, Resources.OpticalFlowInputLevels[4][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel5, Resources.OpticalFlowInputLevels[5][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowInputLevel6, Resources.OpticalFlowInputLevels[6][bufferIndex]);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.SpdConstants>(ComputeShader, OpticalFlowShaderIDs.CbSpd, _spdConstants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowGenerateSCDHistogramPass : OpticalFlowPass
+    {
+        public OpticalFlowGenerateSCDHistogramPass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants) 
+            : base(resources, constants)
+        {
+            InitComputeShader("Generate SCD Histogram", contextDescription.shaders.generateScdHistogram);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowInput, Resources.OpticalFlowInputLevels[0][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdHistogram, Resources.OpticalFlowSCDHistogram);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowComputeSCDDivergencePass : OpticalFlowPass
+    {
+        public OpticalFlowComputeSCDDivergencePass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants) 
+            : base(resources, constants)
+        {
+            InitComputeShader("Compute SCD Divergence", contextDescription.shaders.computeScdDivergence);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdHistogram, Resources.OpticalFlowSCDHistogram);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdPreviousHistogram, Resources.OpticalFlowSCDPreviousHistogram);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdTemp, Resources.OpticalFlowSCDTemp);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdOutput, dispatchParams.opticalFlowSCD);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowComputePass : OpticalFlowPass
+    {
+        public OpticalFlowComputePass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants) 
+            : base(resources, constants)
+        {
+            InitComputeShader("Optical Flow Search", contextDescription.shaders.computeOpticalFlow);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            int levelIndex = bufferIndex ^ (level & 1);
+            
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowInput, Resources.OpticalFlowInputLevels[level][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowPreviousInput, Resources.OpticalFlowInputLevels[level][bufferIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlow, Resources.OpticalFlowLevels[level][levelIndex]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdOutput, dispatchParams.opticalFlowSCD);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowFilterPass : OpticalFlowPass
+    {
+        public OpticalFlowFilterPass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants)
+            : base(resources, constants)
+        {
+            InitComputeShader("Optical Flow Filter", contextDescription.shaders.filterOpticalFlow);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            int levelIndex = bufferIndex ^ (level & 1);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowPrevious, Resources.OpticalFlowLevels[level][levelIndex]);
+
+            if (level == 0)
+            {
+                // Final output (levels are counted in reverse)
+                commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlow, dispatchParams.opticalFlowVector);
+            }
+            else
+            {
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlow, Resources.OpticalFlowLevels[level][levelIndex ^ 1]);
+            }
+
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+
+    internal sealed class OpticalFlowScalePass : OpticalFlowPass
+    {
+        public OpticalFlowScalePass(in OpticalFlow.ContextDescription contextDescription, OpticalFlowResources resources, ComputeBuffer constants) 
+            : base(resources, constants)
+        {
+            InitComputeShader("Optical Flow Scale", contextDescription.shaders.scaleOpticalFlow);
+        }
+
+        protected override void Dispatch(CommandBuffer commandBuffer, in OpticalFlow.DispatchDescription dispatchParams, int bufferIndex, int level, int dispatchX, int dispatchY, int dispatchZ)
+        {
+            if (level <= 0)
+                return;
+            
+            int levelIndex = bufferIndex ^ (level & 1);
+            
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowInput, Resources.OpticalFlowInputLevels[level][bufferIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlowPreviousInput, Resources.OpticalFlowInputLevels[level][bufferIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.SrvOpticalFlow, Resources.OpticalFlowLevels[level][levelIndex ^ 1]);
+
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowNextLevel, Resources.OpticalFlowLevels[level - 1][levelIndex ^ 1]);
+            commandBuffer.SetComputeResourceParam(ComputeShader, KernelIndex, OpticalFlowShaderIDs.UavOpticalFlowScdOutput, dispatchParams.opticalFlowSCD);
+            
+            commandBuffer.SetComputeConstantBufferParam<OpticalFlow.OpticalFlowConstants>(ComputeShader, OpticalFlowShaderIDs.CbOpticalFlow, Constants);
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, dispatchZ);
+        }
+    }
+}

Runtime/OpticalFlow/OpticalFlowPass.cs.meta

@@ -0,0 +1,11 @@
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Runtime/OpticalFlow/OpticalFlowResources.cs

@@ -0,0 +1,76 @@
+using UnityEngine;
+using UnityEngine.Experimental.Rendering;
+
+namespace FidelityFX.FrameGen
+{
+    internal class OpticalFlowResources: FfxResourcesBase
+    {
+        public readonly RenderTexture[][] OpticalFlowInputLevels = 
+        {
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+        };
+        
+        public readonly RenderTexture[][] OpticalFlowLevels = 
+        {
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+            new RenderTexture[2],
+        };
+        
+        public RenderTexture OpticalFlowSCDHistogram;
+        public RenderTexture OpticalFlowSCDPreviousHistogram;
+        public RenderTexture OpticalFlowSCDTemp;
+        
+        public void Create(in OpticalFlow.ContextDescription contextDescription)
+        {
+            Vector2Int opticalFlowInputTextureSize = contextDescription.resolution;
+            Vector2Int opticalFlowTextureSize = OpticalFlow.GetOpticalFlowTextureSize(contextDescription.resolution, OpticalFlow.MinBlockSize);
+            
+            for (int level = 0; level < OpticalFlow.OpticalFlowMaxPyramidLevels; ++level)
+            {
+                CreateDoubleBufferedResource(OpticalFlowInputLevels[level], $"OPTICALFLOW_OpticalFlowInputLevel{level}-", opticalFlowInputTextureSize, GraphicsFormat.R8_UInt);
+                CreateDoubleBufferedResource(OpticalFlowLevels[level], $"OPTICALFLOW_OpticalFlowLevel{level}-", opticalFlowTextureSize, GraphicsFormat.R16G16_SInt);
+
+                opticalFlowTextureSize = NextLevelSize(opticalFlowTextureSize);
+                opticalFlowInputTextureSize = new Vector2Int(opticalFlowInputTextureSize.x >> 1, opticalFlowInputTextureSize.y >> 1);
+            }
+
+            OpticalFlowSCDHistogram = CreateResource("OPTICALFLOW_OpticalFlowSCDHistogram", new Vector2Int(OpticalFlow.GetSCDHistogramTextureWidth(), 1), GraphicsFormat.R32_UInt);
+            OpticalFlowSCDPreviousHistogram = CreateResource("OPTICALFLOW_OpticalFlowSCDPreviousHistogram", new Vector2Int(OpticalFlow.GetSCDHistogramTextureWidth(), 1), GraphicsFormat.R32_SFloat);
+            OpticalFlowSCDTemp = CreateResource("OPTICALFLOW_OpticalFlowSCDTemp", new Vector2Int(3, 1), GraphicsFormat.R32_UInt);
+        }
+
+        public void Destroy()
+        {
+            DestroyResource(ref OpticalFlowSCDTemp);
+            DestroyResource(ref OpticalFlowSCDPreviousHistogram);
+            DestroyResource(ref OpticalFlowSCDHistogram);
+
+            for (int level = 0; level < OpticalFlow.OpticalFlowMaxPyramidLevels; ++level)
+            {
+                DestroyResource(OpticalFlowLevels[level]);
+                DestroyResource(OpticalFlowInputLevels[level]);
+            }
+        }
+
+        private static Vector2Int NextLevelSize(Vector2Int size)
+        {
+            return new Vector2Int(AlignUp(size.x, 2) / 2, AlignUp(size.y, 2) / 2);
+        }
+
+        private static int AlignUp(int x, int y)
+        {
+            return (x + (y - 1)) & ~(y - 1);
+        }
+    }
+}

Runtime/OpticalFlow/OpticalFlowResources.cs.meta

@@ -0,0 +1,11 @@
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Runtime/OpticalFlow/OpticalFlowShaderIDs.cs

@@ -0,0 +1,33 @@
+using UnityEngine;
+
+namespace FidelityFX.FrameGen
+{
+    public static class OpticalFlowShaderIDs
+    {
+        // Shader resource views, i.e. read-only bindings
+        public static readonly int SrvInputColor = Shader.PropertyToID("r_input_color");
+        public static readonly int SrvOpticalFlowInput = Shader.PropertyToID("r_optical_flow_input");
+        public static readonly int SrvOpticalFlowPreviousInput = Shader.PropertyToID("r_optical_flow_previous_input");
+        public static readonly int SrvOpticalFlow = Shader.PropertyToID("r_optical_flow");
+        public static readonly int SrvOpticalFlowPrevious = Shader.PropertyToID("r_optical_flow_previous");
+        
+        // Unordered access views, i.e. random read/write bindings
+        public static readonly int UavOpticalFlowInput = Shader.PropertyToID("rw_optical_flow_input");
+        public static readonly int UavOpticalFlowInputLevel1 = Shader.PropertyToID("rw_optical_flow_input_level_1");
+        public static readonly int UavOpticalFlowInputLevel2 = Shader.PropertyToID("rw_optical_flow_input_level_2");
+        public static readonly int UavOpticalFlowInputLevel3 = Shader.PropertyToID("rw_optical_flow_input_level_3");
+        public static readonly int UavOpticalFlowInputLevel4 = Shader.PropertyToID("rw_optical_flow_input_level_4");
+        public static readonly int UavOpticalFlowInputLevel5 = Shader.PropertyToID("rw_optical_flow_input_level_5");
+        public static readonly int UavOpticalFlowInputLevel6 = Shader.PropertyToID("rw_optical_flow_input_level_6");
+        public static readonly int UavOpticalFlow = Shader.PropertyToID("rw_optical_flow");
+        public static readonly int UavOpticalFlowNextLevel = Shader.PropertyToID("rw_optical_flow_next_level");
+        public static readonly int UavOpticalFlowScdHistogram = Shader.PropertyToID("rw_optical_flow_scd_histogram");   // scene change detection histogram
+        public static readonly int UavOpticalFlowScdPreviousHistogram = Shader.PropertyToID("rw_optical_flow_scd_previous_histogram");
+        public static readonly int UavOpticalFlowScdTemp = Shader.PropertyToID("rw_optical_flow_scd_temp");
+        public static readonly int UavOpticalFlowScdOutput = Shader.PropertyToID("rw_optical_flow_scd_output");
+        
+        // Constant buffer bindings
+        public static readonly int CbOpticalFlow = Shader.PropertyToID("cbOF");
+        public static readonly int CbSpd = Shader.PropertyToID("cbOF_SPD");
+    }
+}

Runtime/OpticalFlow/OpticalFlowShaderIDs.cs.meta

@@ -0,0 +1,11 @@
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_compute_game_vector_field_inpainting_pyramid_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_compute_game_vector_field_inpainting_pyramid_pass.hlsl"

Shaders/ffx_frameinterpolation_compute_game_vector_field_inpainting_pyramid_pass.compute.meta

@@ -0,0 +1,8 @@
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+guid: e9b3faa41d2279344857aa1643c74c54
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+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_compute_inpainting_pyramid_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_compute_inpainting_pyramid_pass.hlsl"

Shaders/ffx_frameinterpolation_compute_inpainting_pyramid_pass.compute.meta

@@ -0,0 +1,8 @@
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+guid: b171a3b3146508a4ebe6ecf70d112568
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_debug_view_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_debug_view_pass.hlsl"

Shaders/ffx_frameinterpolation_debug_view_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 63512d6a875b7f749b69f1e1dab1db24
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+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_disocclusion_mask_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_disocclusion_mask_pass.hlsl"

Shaders/ffx_frameinterpolation_disocclusion_mask_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: eff2ebf6818194848a6bda41001d845a
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+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_game_motion_vector_field_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_game_motion_vector_field_pass.hlsl"

Shaders/ffx_frameinterpolation_game_motion_vector_field_pass.compute.meta

@@ -0,0 +1,8 @@
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+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_inpainting_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_inpainting_pass.hlsl"

Shaders/ffx_frameinterpolation_inpainting_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: d9affbaf53b13854898a7fd84c66e487
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_optical_flow_vector_field_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_optical_flow_vector_field_pass.hlsl"

Shaders/ffx_frameinterpolation_optical_flow_vector_field_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b89c0efd0c4ccad468e76ded24ac4bdf
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_pass.hlsl"

Shaders/ffx_frameinterpolation_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 58d390c8d43f74c42832f68ef4597133
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_reconstruct_and_dilate_pass.compute

@@ -0,0 +1,34 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_JITTERED_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_reconstruct_and_dilate_pass.hlsl"

Shaders/ffx_frameinterpolation_reconstruct_and_dilate_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 8502d70e8836f5e4c818069fbc90a683
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_reconstruct_previous_depth_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_reconstruct_previous_depth_pass.hlsl"

Shaders/ffx_frameinterpolation_reconstruct_previous_depth_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b665305f7d728ed478c661e3d0fa4d46
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_frameinterpolation_setup_pass.compute

@@ -0,0 +1,33 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_LOW_RES_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FRAMEINTERPOLATION_OPTION_INVERTED_DEPTH
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_frameinterpolation_setup_pass.hlsl"

Shaders/ffx_frameinterpolation_setup_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b4821f6dac05a804e9ad78b957888248
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_fsr2_accumulate_pass.compute

@@ -28,9 +28,9 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 #pragma multi_compile_local __ FFX_FSR2_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 // Ensure the correct value is defined for this keyword, as it is used to select one of multiple sampler functions
 #ifdef FFX_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE

Shaders/ffx_fsr2_autogen_reactive_pass.compute

@@ -25,8 +25,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_autogen_reactive_pass.hlsl"

Shaders/ffx_fsr2_compute_luminance_pyramid_pass.compute

@@ -25,9 +25,9 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 // Wave operations require shader model 6.0; this can only be enabled when using DXC on D3D12
 // These pragmas are commented out by default as Unity will sometimes ignore the #if's and try to enable these features anyway.

Shaders/ffx_fsr2_depth_clip_pass.compute

@@ -25,8 +25,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_depth_clip_pass.hlsl"

Shaders/ffx_fsr2_lock_pass.compute

@@ -25,8 +25,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_lock_pass.hlsl"

Shaders/ffx_fsr2_rcas_pass.compute

@@ -24,8 +24,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_rcas_pass.hlsl"

Shaders/ffx_fsr2_reconstruct_previous_depth_pass.compute

@@ -26,8 +26,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_reconstruct_previous_depth_pass.hlsl"

Shaders/ffx_fsr2_tcr_autogen_pass.compute

@@ -25,8 +25,8 @@
 #pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR2_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr2_tcr_autogen_pass.hlsl"

Shaders/ffx_fsr3upscaler_accumulate_pass.compute

@@ -26,9 +26,9 @@
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 // Ensure the correct value is defined for this keyword, as it is used to select one of multiple sampler functions
 #ifdef FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE

Shaders/ffx_fsr3upscaler_autogen_reactive_pass.compute

@@ -22,8 +22,8 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_autogen_reactive_pass.hlsl"

Shaders/ffx_fsr3upscaler_debug_view_pass.compute

@@ -22,8 +22,8 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_debug_view_pass.hlsl"

Shaders/ffx_fsr3upscaler_luma_instability_pass.compute

@@ -22,8 +22,8 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_luma_instability_pass.hlsl"

Shaders/ffx_fsr3upscaler_luma_pyramid_pass.compute

@@ -22,9 +22,9 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 // Wave operations require shader model 6.0; this can only be enabled when using DXC on D3D12
 // These pragmas are commented out by default as Unity will sometimes ignore the #if's and try to enable these features anyway.

Shaders/ffx_fsr3upscaler_prepare_inputs_pass.compute

@@ -24,8 +24,8 @@
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_prepare_inputs_pass.hlsl"

Shaders/ffx_fsr3upscaler_prepare_reactivity_pass.compute

@@ -22,8 +22,8 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_prepare_reactivity_pass.hlsl"

Shaders/ffx_fsr3upscaler_rcas_pass.compute

@@ -20,8 +20,8 @@
 
 #pragma kernel CS
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_rcas_pass.hlsl"

Shaders/ffx_fsr3upscaler_shading_change_pass.compute

@@ -22,8 +22,8 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_shading_change_pass.hlsl"

Shaders/ffx_fsr3upscaler_shading_change_pyramid_pass.compute

@@ -22,9 +22,9 @@
 
 #pragma multi_compile_local __ FFX_HALF
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 // Wave operations require shader model 6.0; this can only be enabled when using DXC on D3D12
 #define FFX_SPD_NO_WAVE_OPERATIONS

Shaders/ffx_fsr3upscaler_tcr_autogen_pass.compute

@@ -23,8 +23,8 @@
 #pragma multi_compile_local __ FFX_HALF
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
 
-#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+#pragma multi_compile __ UNITY_FFX_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr_unity_common.cginc"
+#include "ffx_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_tcr_autogen_pass.hlsl"

Shaders/ffx_opticalflow_compute_luminance_pyramid_pass.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_compute_luminance_pyramid_pass.hlsl"

Shaders/ffx_opticalflow_compute_luminance_pyramid_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b4c831117e9d7db4f904bd81e05f9def
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_opticalflow_compute_optical_flow_advanced_pass_v5.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_compute_optical_flow_advanced_pass_v5.hlsl"

Shaders/ffx_opticalflow_compute_optical_flow_advanced_pass_v5.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f480a6ee4cca98544a6f72d0a57caa36
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_opticalflow_compute_scd_divergence_pass.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_compute_scd_divergence_pass.hlsl"

Shaders/ffx_opticalflow_compute_scd_divergence_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 06c260b21c4db2c4c88629b23a249e32
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_opticalflow_filter_optical_flow_pass_v5.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_filter_optical_flow_pass_v5.hlsl"

Shaders/ffx_opticalflow_filter_optical_flow_pass_v5.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 067af02200e7be2469c7f23a8711fe3c
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_opticalflow_generate_scd_histogram_pass.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_generate_scd_histogram_pass.hlsl"

Shaders/ffx_opticalflow_generate_scd_histogram_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f20d1907c158bfe4d85b2f18d497a09f
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Shaders/ffx_opticalflow_prepare_luma_pass.compute

@@ -0,0 +1,30 @@
+// Copyright (c) 2024 Nico de Poel
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
+
+#pragma kernel CS
+
+#pragma use_dxc
+#pragma require WaveBasic
+
+#include "ffx_unity_common.cginc"
+
+#include "shaders/ffx_opticalflow_prepare_luma_pass.hlsl"

Shaders/ffx_opticalflow_prepare_luma_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 3b70bda1db8d2f74396241d4811241ed
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: