- Moved ResourceView into its own source file.

- Using texture arrays is now a boolean flag that can be set on dispatch, removing the need for HDRP-specific checks inside the FSR3 code and shaders.
- Debug view shader is no longer conditionally included.
- Reduced the number of multi-compile variants by removing unused keywords for each shader.
- Optimized temporary RT use; two resources can reuse the same generic intermediate temp RT.
- Reorganized some of the shader code to work nicer with the rest of the FidelityFX SDK sources.

Assets/Scripts/Core/Fsr3ShaderIDs.cs

@@ -22,69 +22,70 @@ using UnityEngine;
 
 namespace FidelityFX
 {
-    internal static class Fsr3ShaderIDs
+    public static class Fsr3ShaderIDs
     {
         // Shader resource views, i.e. read-only bindings
-        internal static readonly int SrvInputColor = Shader.PropertyToID("r_input_color_jittered");
-        internal static readonly int SrvOpaqueOnly = Shader.PropertyToID("r_input_opaque_only");
-        internal static readonly int SrvInputMotionVectors = Shader.PropertyToID("r_input_motion_vectors");
-        internal static readonly int SrvInputDepth = Shader.PropertyToID("r_input_depth");
-        internal static readonly int SrvInputExposure = Shader.PropertyToID("r_input_exposure");
-        internal static readonly int SrvFrameInfo = Shader.PropertyToID("r_frame_info"); 
-        internal static readonly int SrvReactiveMask = Shader.PropertyToID("r_reactive_mask");
-        internal static readonly int SrvTransparencyAndCompositionMask = Shader.PropertyToID("r_transparency_and_composition_mask");
-        internal static readonly int SrvReconstructedPrevNearestDepth = Shader.PropertyToID("r_reconstructed_previous_nearest_depth");
-        internal static readonly int SrvDilatedMotionVectors = Shader.PropertyToID("r_dilated_motion_vectors");
-        internal static readonly int SrvDilatedDepth = Shader.PropertyToID("r_dilated_depth");
-        internal static readonly int SrvInternalUpscaled = Shader.PropertyToID("r_internal_upscaled_color");
-        internal static readonly int SrvAccumulation = Shader.PropertyToID("r_accumulation");
-        internal static readonly int SrvLumaHistory = Shader.PropertyToID("r_luma_history");
-        internal static readonly int SrvRcasInput = Shader.PropertyToID("r_rcas_input");
-        internal static readonly int SrvLanczosLut = Shader.PropertyToID("r_lanczos_lut");
-        internal static readonly int SrvSpdMips = Shader.PropertyToID("r_spd_mips");
-        internal static readonly int SrvDilatedReactiveMasks = Shader.PropertyToID("r_dilated_reactive_masks");
-        internal static readonly int SrvNewLocks = Shader.PropertyToID("r_new_locks");
-        internal static readonly int SrvFarthestDepth = Shader.PropertyToID("r_farthest_depth");
-        internal static readonly int SrvFarthestDepthMip1 = Shader.PropertyToID("r_farthest_depth_mip1");
-        internal static readonly int SrvShadingChange = Shader.PropertyToID("r_shading_change");
-        internal static readonly int SrvCurrentLuma = Shader.PropertyToID("r_current_luma");
-        internal static readonly int SrvPreviousLuma = Shader.PropertyToID("r_previous_luma");
-        internal static readonly int SrvLumaInstability = Shader.PropertyToID("r_luma_instability");
-        internal static readonly int SrvPrevColorPreAlpha = Shader.PropertyToID("r_input_prev_color_pre_alpha");
-        internal static readonly int SrvPrevColorPostAlpha = Shader.PropertyToID("r_input_prev_color_post_alpha");
+        public static readonly int SrvInputColor = Shader.PropertyToID("r_input_color_jittered");
+        public static readonly int SrvOpaqueOnly = Shader.PropertyToID("r_input_opaque_only");
+        public static readonly int SrvInputMotionVectors = Shader.PropertyToID("r_input_motion_vectors");
+        public static readonly int SrvInputDepth = Shader.PropertyToID("r_input_depth");
+        public static readonly int SrvInputExposure = Shader.PropertyToID("r_input_exposure");
+        public static readonly int SrvFrameInfo = Shader.PropertyToID("r_frame_info"); 
+        public static readonly int SrvReactiveMask = Shader.PropertyToID("r_reactive_mask");
+        public static readonly int SrvTransparencyAndCompositionMask = Shader.PropertyToID("r_transparency_and_composition_mask");
+        public static readonly int SrvReconstructedPrevNearestDepth = Shader.PropertyToID("r_reconstructed_previous_nearest_depth");
+        public static readonly int SrvDilatedMotionVectors = Shader.PropertyToID("r_dilated_motion_vectors");
+        public static readonly int SrvDilatedDepth = Shader.PropertyToID("r_dilated_depth");
+        public static readonly int SrvInternalUpscaled = Shader.PropertyToID("r_internal_upscaled_color");
+        public static readonly int SrvAccumulation = Shader.PropertyToID("r_accumulation");
+        public static readonly int SrvLumaHistory = Shader.PropertyToID("r_luma_history");
+        public static readonly int SrvRcasInput = Shader.PropertyToID("r_rcas_input");
+        public static readonly int SrvLanczosLut = Shader.PropertyToID("r_lanczos_lut");
+        public static readonly int SrvSpdMips = Shader.PropertyToID("r_spd_mips");
+        public static readonly int SrvDilatedReactiveMasks = Shader.PropertyToID("r_dilated_reactive_masks");
+        public static readonly int SrvNewLocks = Shader.PropertyToID("r_new_locks");
+        public static readonly int SrvFarthestDepth = Shader.PropertyToID("r_farthest_depth");
+        public static readonly int SrvFarthestDepthMip1 = Shader.PropertyToID("r_farthest_depth_mip1");
+        public static readonly int SrvShadingChange = Shader.PropertyToID("r_shading_change");
+        public static readonly int SrvCurrentLuma = Shader.PropertyToID("r_current_luma");
+        public static readonly int SrvPreviousLuma = Shader.PropertyToID("r_previous_luma");
+        public static readonly int SrvLumaInstability = Shader.PropertyToID("r_luma_instability");
+        public static readonly int SrvPrevColorPreAlpha = Shader.PropertyToID("r_input_prev_color_pre_alpha");
+        public static readonly int SrvPrevColorPostAlpha = Shader.PropertyToID("r_input_prev_color_post_alpha");
 
         // Unordered access views, i.e. random read/write bindings
-        internal static readonly int UavReconstructedPrevNearestDepth = Shader.PropertyToID("rw_reconstructed_previous_nearest_depth");
-        internal static readonly int UavDilatedMotionVectors = Shader.PropertyToID("rw_dilated_motion_vectors");
-        internal static readonly int UavDilatedDepth = Shader.PropertyToID("rw_dilated_depth");
-        internal static readonly int UavInternalUpscaled = Shader.PropertyToID("rw_internal_upscaled_color");
-        internal static readonly int UavAccumulation = Shader.PropertyToID("rw_accumulation");
-        internal static readonly int UavLumaHistory = Shader.PropertyToID("rw_luma_history");
-        internal static readonly int UavUpscaledOutput = Shader.PropertyToID("rw_upscaled_output");
-        internal static readonly int UavDilatedReactiveMasks = Shader.PropertyToID("rw_dilated_reactive_masks");
-        internal static readonly int UavFrameInfo = Shader.PropertyToID("rw_frame_info");
-        internal static readonly int UavSpdAtomicCount = Shader.PropertyToID("rw_spd_global_atomic");
-        internal static readonly int UavNewLocks = Shader.PropertyToID("rw_new_locks");
-        internal static readonly int UavAutoReactive = Shader.PropertyToID("rw_output_autoreactive");
-        internal static readonly int UavShadingChange = Shader.PropertyToID("rw_shading_change");
-        internal static readonly int UavFarthestDepth = Shader.PropertyToID("rw_farthest_depth");
-        internal static readonly int UavFarthestDepthMip1 = Shader.PropertyToID("rw_farthest_depth_mip1");
-        internal static readonly int UavCurrentLuma = Shader.PropertyToID("rw_current_luma");
-        internal static readonly int UavLumaInstability = Shader.PropertyToID("rw_luma_instability");
-        internal static readonly int UavSpdMip0 = Shader.PropertyToID("rw_spd_mip0");
-        internal static readonly int UavSpdMip1 = Shader.PropertyToID("rw_spd_mip1");
-        internal static readonly int UavSpdMip2 = Shader.PropertyToID("rw_spd_mip2");
-        internal static readonly int UavSpdMip3 = Shader.PropertyToID("rw_spd_mip3");
-        internal static readonly int UavSpdMip4 = Shader.PropertyToID("rw_spd_mip4");
-        internal static readonly int UavSpdMip5 = Shader.PropertyToID("rw_spd_mip5");
-        internal static readonly int UavAutoComposition = Shader.PropertyToID("rw_output_autocomposition");
-        internal static readonly int UavPrevColorPreAlpha = Shader.PropertyToID("rw_output_prev_color_pre_alpha");
-        internal static readonly int UavPrevColorPostAlpha = Shader.PropertyToID("rw_output_prev_color_post_alpha");
+        public static readonly int UavReconstructedPrevNearestDepth = Shader.PropertyToID("rw_reconstructed_previous_nearest_depth");
+        public static readonly int UavDilatedMotionVectors = Shader.PropertyToID("rw_dilated_motion_vectors");
+        public static readonly int UavDilatedDepth = Shader.PropertyToID("rw_dilated_depth");
+        public static readonly int UavInternalUpscaled = Shader.PropertyToID("rw_internal_upscaled_color");
+        public static readonly int UavAccumulation = Shader.PropertyToID("rw_accumulation");
+        public static readonly int UavLumaHistory = Shader.PropertyToID("rw_luma_history");
+        public static readonly int UavUpscaledOutput = Shader.PropertyToID("rw_upscaled_output");
+        public static readonly int UavDilatedReactiveMasks = Shader.PropertyToID("rw_dilated_reactive_masks");
+        public static readonly int UavFrameInfo = Shader.PropertyToID("rw_frame_info");
+        public static readonly int UavSpdAtomicCount = Shader.PropertyToID("rw_spd_global_atomic");
+        public static readonly int UavNewLocks = Shader.PropertyToID("rw_new_locks");
+        public static readonly int UavAutoReactive = Shader.PropertyToID("rw_output_autoreactive");
+        public static readonly int UavShadingChange = Shader.PropertyToID("rw_shading_change");
+        public static readonly int UavFarthestDepth = Shader.PropertyToID("rw_farthest_depth");
+        public static readonly int UavFarthestDepthMip1 = Shader.PropertyToID("rw_farthest_depth_mip1");
+        public static readonly int UavCurrentLuma = Shader.PropertyToID("rw_current_luma");
+        public static readonly int UavLumaInstability = Shader.PropertyToID("rw_luma_instability");
+        public static readonly int UavIntermediate = Shader.PropertyToID("rw_intermediate_fp16x1");
+        public static readonly int UavSpdMip0 = Shader.PropertyToID("rw_spd_mip0");
+        public static readonly int UavSpdMip1 = Shader.PropertyToID("rw_spd_mip1");
+        public static readonly int UavSpdMip2 = Shader.PropertyToID("rw_spd_mip2");
+        public static readonly int UavSpdMip3 = Shader.PropertyToID("rw_spd_mip3");
+        public static readonly int UavSpdMip4 = Shader.PropertyToID("rw_spd_mip4");
+        public static readonly int UavSpdMip5 = Shader.PropertyToID("rw_spd_mip5");
+        public static readonly int UavAutoComposition = Shader.PropertyToID("rw_output_autocomposition");
+        public static readonly int UavPrevColorPreAlpha = Shader.PropertyToID("rw_output_prev_color_pre_alpha");
+        public static readonly int UavPrevColorPostAlpha = Shader.PropertyToID("rw_output_prev_color_post_alpha");
 
         // Constant buffer bindings
-        internal static readonly int CbFsr3Upscaler = Shader.PropertyToID("cbFSR3Upscaler");
-        internal static readonly int CbSpd = Shader.PropertyToID("cbSPD");
-        internal static readonly int CbRcas = Shader.PropertyToID("cbRCAS");
-        internal static readonly int CbGenReactive = Shader.PropertyToID("cbGenerateReactive");
+        public static readonly int CbFsr3Upscaler = Shader.PropertyToID("cbFSR3Upscaler");
+        public static readonly int CbSpd = Shader.PropertyToID("cbSPD");
+        public static readonly int CbRcas = Shader.PropertyToID("cbRCAS");
+        public static readonly int CbGenReactive = Shader.PropertyToID("cbGenerateReactive");
     }
 }

Assets/Scripts/Core/Fsr3Upscaler.cs

@@ -201,6 +201,7 @@ namespace FidelityFX
             public float CameraFovAngleVertical;
             public float ViewSpaceToMetersFactor;
             public DispatchFlags Flags;
+            public bool UseTextureArrays;   // Enable texture array bindings, primarily used for HDRP and XR
             
             // EXPERIMENTAL reactive mask generation parameters
             public bool EnableAutoReactive;
@@ -309,35 +310,4 @@ namespace FidelityFX
             public readonly uint dummy1;
         }
     }
-    
-    /// <summary>
-    /// An immutable structure wrapping all of the necessary information to bind a specific buffer or attachment of a render target to a compute shader.
-    /// </summary>
-    public readonly struct ResourceView
-    {
-        /// <summary>
-        /// This value is the equivalent of not setting any value at all; all struct fields will have their default values.
-        /// It does not refer to a valid texture, therefore any variable set to this value should be checked for IsValid and reassigned before being bound to a shader.
-        /// </summary>
-        public static readonly ResourceView Unassigned = new ResourceView(default);
-            
-        /// <summary>
-        /// This value contains a valid texture reference that can be bound to a shader, however it is just an empty placeholder texture.
-        /// Binding this to a shader can be seen as setting the texture variable inside the shader to null.
-        /// </summary>
-        public static readonly ResourceView None = new ResourceView(BuiltinRenderTextureType.None);
-            
-        public ResourceView(in RenderTargetIdentifier renderTarget, RenderTextureSubElement subElement = RenderTextureSubElement.Default, int mipLevel = 0)
-        {
-            RenderTarget = renderTarget;
-            SubElement = subElement;
-            MipLevel = mipLevel;
-        }
-            
-        public bool IsValid => !RenderTarget.Equals(default);
-            
-        public readonly RenderTargetIdentifier RenderTarget;
-        public readonly RenderTextureSubElement SubElement;
-        public readonly int MipLevel;
-    }
 }

Assets/Scripts/Core/Fsr3UpscalerAssets.cs

@@ -27,6 +27,7 @@ namespace FidelityFX
     /// Scriptable object containing all shader resources required by FidelityFX Super Resolution 3 (FSR3) Upscaler.
     /// 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 = "FSR3 Upscaler Assets", menuName = "FidelityFX/FSR3 Upscaler Assets", order = 1103)]
     public class Fsr3UpscalerAssets : ScriptableObject
     {
         public Fsr3UpscalerShaders shaders;
@@ -71,13 +72,11 @@ namespace FidelityFX
         /// <summary>
         /// The compute shader used by the prepare inputs pass.
         /// </summary>
-        [FormerlySerializedAs("reconstructPreviousDepthPass")]
         public ComputeShader prepareInputsPass;
         
         /// <summary>
         /// The compute shader used by the luminance pyramid computation pass.
         /// </summary>
-        [FormerlySerializedAs("computeLuminancePyramidPass")]
         public ComputeShader lumaPyramidPass;
 
         /// <summary>
@@ -93,13 +92,11 @@ namespace FidelityFX
         /// <summary>
         /// The compute shader used by the prepare reactivity pass.
         /// </summary>
-        [FormerlySerializedAs("depthClipPass")]
         public ComputeShader prepareReactivityPass;
         
         /// <summary>
         /// The compute shader used by the luma instability pass.
         /// </summary>
-        [FormerlySerializedAs("lockPass")]
         public ComputeShader lumaInstabilityPass;
 
         /// <summary>
@@ -122,12 +119,10 @@ namespace FidelityFX
         /// </summary>
         public ComputeShader tcrAutoGenPass;
 
-#if UNITY_EDITOR || DEVELOPMENT_BUILD
         /// <summary>
         /// The compute shader used to display a debug view.
         /// </summary>
         public ComputeShader debugViewPass;
-#endif
         
         /// <summary>
         /// Returns a copy of this class and its contents.
@@ -156,9 +151,7 @@ namespace FidelityFX
                 sharpenPass = Object.Instantiate(sharpenPass),
                 autoGenReactivePass = Object.Instantiate(autoGenReactivePass),
                 tcrAutoGenPass = Object.Instantiate(tcrAutoGenPass),
-#if UNITY_EDITOR || DEVELOPMENT_BUILD
                 debugViewPass = Object.Instantiate(debugViewPass),
-#endif
             };
         }
 
@@ -178,9 +171,7 @@ namespace FidelityFX
             Object.Destroy(sharpenPass);
             Object.Destroy(autoGenReactivePass);
             Object.Destroy(tcrAutoGenPass);
-#if UNITY_EDITOR || DEVELOPMENT_BUILD
             Object.Destroy(debugViewPass);
-#endif
         }
     }
 }

Assets/Scripts/Core/Fsr3UpscalerCallbacks.cs

@@ -1,4 +1,4 @@
-// Copyright (c) 2023 Nico de Poel
+// 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
@@ -42,7 +42,7 @@ namespace FidelityFX
     }
     
     /// <summary>
-    /// Default implementation of IFsr3UpscalerCallbacks using simple Resources calls.
+    /// Default implementation of IFsr3UpscalerCallbacks.
     /// These are fine for testing but a proper game will want to extend and override these methods.
     /// </summary>
     public class Fsr3UpscalerCallbacksBase: IFsr3UpscalerCallbacks

Assets/Scripts/Core/Fsr3UpscalerContext.cs

@@ -162,6 +162,9 @@ namespace FidelityFX
             {
                 DebugCheckDispatch(dispatchParams);
             }
+
+            if (dispatchParams.UseTextureArrays)
+                commandBuffer.EnableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
             
             if (_firstExecution)
             {
@@ -288,6 +291,8 @@ namespace FidelityFX
             _resourceFrameIndex = (_resourceFrameIndex + 1) % MaxQueuedFrames;
 
             Fsr3UpscalerResources.DestroyAliasableResources(commandBuffer);
+            
+            commandBuffer.DisableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
         }
 
         public void GenerateReactiveMask(Fsr3Upscaler.GenerateReactiveDescription dispatchParams)

Assets/Scripts/Core/Fsr3UpscalerPass.cs

@@ -71,7 +71,7 @@ namespace FidelityFX
         {
             if (shader == null)
             {
-                throw new MissingReferenceException($"Shader for FSR3 Upscaler '{passName}' could not be loaded! Please ensure it is included in the project correctly.");
+                throw new MissingReferenceException($"Shader for FSR3 Upscaler pass '{passName}' could not be loaded! Please ensure it is included in the project correctly.");
             }
 
             ComputeShader = shader;
@@ -93,13 +93,6 @@ namespace FidelityFX
             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");
-
-            // Inform the shader which render pipeline we're currently using
-            var pipeline = GraphicsSettings.currentRenderPipeline;
-            if (pipeline != null && pipeline.GetType().Name.Contains("HDRenderPipeline"))
-            {
-                ComputeShader.EnableKeyword("UNITY_FSR3UPSCALER_HDRP");
-            }
         }
     }
     
@@ -124,6 +117,7 @@ namespace FidelityFX
             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.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
@@ -147,7 +141,7 @@ namespace FidelityFX
         protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepth, Fsr3ShaderIDs.UavFarthestDepth);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepth, Fsr3ShaderIDs.UavIntermediate);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdAtomicCount, Resources.SpdAtomicCounter);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavFrameInfo, Resources.FrameInfo);
@@ -186,7 +180,6 @@ namespace FidelityFX
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
             
-            // TODO: possibly the atomic counter might have to get cleared in-between passes. Check on MacOS whether we have issues with this or not.
             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);
@@ -273,6 +266,7 @@ namespace FidelityFX
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaHistory, Resources.LumaHistory[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaInstability, Fsr3ShaderIDs.UavIntermediate);
             
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
             
@@ -332,7 +326,7 @@ namespace FidelityFX
             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.SrvLumaInstability, Fsr3ShaderIDs.UavLumaInstability);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaInstability, Fsr3ShaderIDs.UavIntermediate);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
             
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);

Assets/Scripts/Core/Fsr3UpscalerResources.cs

@@ -148,9 +148,7 @@ namespace FidelityFX
             Vector2Int maxRenderSizeDiv2 = maxRenderSize / 2;
             
             // FSR3UPSCALER_IntermediateFp16x1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            // TODO: see if these can be combined into one (this is a reusable temporary intermediate buffer used by different passes for different purposes)
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavFarthestDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavLumaInstability, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavIntermediate, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
             
             // FSR3UPSCALER_ShadingChange: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
             commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavShadingChange, maxRenderSizeDiv2.x, maxRenderSizeDiv2.y, 0, default, GraphicsFormat.R8_UNorm, 1, true);
@@ -172,8 +170,7 @@ namespace FidelityFX
             commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavFarthestDepthMip1);
             commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavNewLocks);
             commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavShadingChange);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavLumaInstability);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavFarthestDepth);
+            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavIntermediate);
         }
 
         private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format)

Assets/Scripts/Core/ResourceView.cs

@@ -0,0 +1,55 @@
+// 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.Rendering;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// An immutable structure wrapping all of the necessary information to bind a specific buffer or attachment of a render target to a compute shader.
+    /// </summary>
+    public readonly struct ResourceView
+    {
+        /// <summary>
+        /// This value is the equivalent of not setting any value at all; all struct fields will have their default values.
+        /// It does not refer to a valid texture, therefore any variable set to this value should be checked for IsValid and reassigned before being bound to a shader.
+        /// </summary>
+        public static readonly ResourceView Unassigned = new ResourceView(default);
+            
+        /// <summary>
+        /// This value contains a valid texture reference that can be bound to a shader, however it is just an empty placeholder texture.
+        /// Binding this to a shader can be seen as setting the texture variable inside the shader to null.
+        /// </summary>
+        public static readonly ResourceView None = new ResourceView(BuiltinRenderTextureType.None);
+            
+        public ResourceView(in RenderTargetIdentifier renderTarget, RenderTextureSubElement subElement = RenderTextureSubElement.Default, int mipLevel = 0)
+        {
+            RenderTarget = renderTarget;
+            SubElement = subElement;
+            MipLevel = mipLevel;
+        }
+            
+        public bool IsValid => !RenderTarget.Equals(default);
+            
+        public readonly RenderTargetIdentifier RenderTarget;
+        public readonly RenderTextureSubElement SubElement;
+        public readonly int MipLevel;
+    }
+}

Assets/Scripts/Core/ResourceView.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: eb9fdfac33a070740b66520d88f43ab7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/FSR3/ffx_fsr3upscaler_accumulate_pass.compute

@@ -24,13 +24,11 @@
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_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

Assets/Shaders/FSR3/ffx_fsr3upscaler_autogen_reactive_pass.compute

@@ -21,12 +21,9 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_autogen_reactive_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_debug_view_pass.compute

@@ -21,15 +21,9 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_debug_view_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_luma_instability_pass.compute

@@ -21,15 +21,9 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_luma_instability_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_luma_pyramid_pass.compute

@@ -21,16 +21,10 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_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.

Assets/Shaders/FSR3/ffx_fsr3upscaler_prepare_inputs_pass.compute

@@ -20,17 +20,12 @@
 
 #pragma kernel CS
 
-// TODO: figure out which of these defines are actually used by this shader (for all shader passes)
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_prepare_inputs_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_prepare_reactivity_pass.compute

@@ -21,15 +21,9 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_prepare_reactivity_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_rcas_pass.compute

@@ -1,4 +1,4 @@
-// Copyright (c) 2023 Nico de Poel
+// 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
@@ -20,12 +20,8 @@
 
 #pragma kernel CS
 
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
-
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_rcas_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_shading_change_pass.compute

@@ -21,15 +21,9 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_shading_change_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_shading_change_pyramid_pass.compute

@@ -21,16 +21,10 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_REPROJECT_USE_LANCZOS_TYPE
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_HDR_COLOR_INPUT
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_APPLY_SHARPENING
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_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

Assets/Shaders/FSR3/ffx_fsr3upscaler_tcr_autogen_pass.compute

@@ -21,12 +21,10 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_LOW_RESOLUTION_MOTION_VECTORS
 #pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_JITTERED_MOTION_VECTORS
-#pragma multi_compile_local __ FFX_FSR3UPSCALER_OPTION_INVERTED_DEPTH
 
-#pragma multi_compile_local __ UNITY_FSR3UPSCALER_HDRP
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#include "ffx_fsr_unity_common.cginc"
 
 #include "shaders/ffx_fsr3upscaler_tcr_autogen_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_unity_common.cginc → Assets/Shaders/FSR3/ffx_fsr_unity_common.cginc

@@ -1,4 +1,4 @@
-// Copyright (c) 2023 Nico de Poel
+// 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
@@ -46,39 +46,37 @@
 #endif
 
 // Workaround for HDRP using texture arrays for its camera buffers on some platforms
-// The below defines are copied from: Packages/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/TextureXR.hlsl
-#if defined(UNITY_FSR3UPSCALER_HDRP)
-    // Must be in sync with C# with property useTexArray in TextureXR.cs
-    #if ((defined(SHADER_API_D3D11) || defined(SHADER_API_D3D12)) && !defined(SHADER_API_XBOXONE) && !defined(SHADER_API_GAMECORE)) || defined(SHADER_API_PSSL) || defined(SHADER_API_VULKAN)
-        #define UNITY_TEXTURE2D_X_ARRAY_SUPPORTED
-    #endif
-
-    // Control if TEXTURE2D_X macros will expand to texture arrays
-    #if defined(UNITY_TEXTURE2D_X_ARRAY_SUPPORTED) && !defined(DISABLE_TEXTURE2D_X_ARRAY)
-        #define USE_TEXTURE2D_X_AS_ARRAY
-    #endif
+// The below defines are adapted from: Packages/com.unity.render-pipelines.core/ShaderLibrary/TextureXR.hlsl
+#if ((defined(SHADER_API_D3D11) || defined(SHADER_API_D3D12)) && !defined(SHADER_API_XBOXONE) && !defined(SHADER_API_GAMECORE)) || defined(SHADER_API_PSSL) || defined(SHADER_API_VULKAN)
+    #define UNITY_TEXTURE2D_X_ARRAY_SUPPORTED
+#endif
 
-    // Early defines for single-pass instancing
-    #if defined(STEREO_INSTANCING_ON) && defined(UNITY_TEXTURE2D_X_ARRAY_SUPPORTED)
-        #define UNITY_STEREO_INSTANCING_ENABLED
-    #endif
+// Control if TEXTURE2D_X macros will expand to texture arrays
+#if defined(UNITY_TEXTURE2D_X_ARRAY_SUPPORTED) && defined(UNITY_FSR_TEXTURE2D_X_ARRAY)
+    #define USE_TEXTURE2D_X_AS_ARRAY
+#endif
 
-    // Helper macros to handle XR single-pass with Texture2DArray
-    #if defined(USE_TEXTURE2D_X_AS_ARRAY)
+// Early defines for single-pass instancing
+#if defined(STEREO_INSTANCING_ON) && defined(UNITY_TEXTURE2D_X_ARRAY_SUPPORTED)
+    #define UNITY_STEREO_INSTANCING_ENABLED
+#endif
 
-        // Only single-pass stereo instancing used array indexing
-        #if defined(UNITY_STEREO_INSTANCING_ENABLED)
-            #define SLICE_ARRAY_INDEX   unity_StereoEyeIndex
-        #else
-            #define SLICE_ARRAY_INDEX  0
-        #endif
+// Helper macros to handle XR single-pass with Texture2DArray
+#if defined(USE_TEXTURE2D_X_AS_ARRAY)
 
-        // Declare and sample camera buffers as texture arrays
-        #define UNITY_FSR3_TEX2D(type)          Texture2DArray<type>
-        #define UNITY_FSR3_RWTEX2D(type)        RWTexture2DArray<type>
-        #define UNITY_FSR3_POS(pxPos)           FfxUInt32x3(pxPos, SLICE_ARRAY_INDEX)
-        #define UNITY_FSR3_UV(uv)               FfxFloat32x3(uv, SLICE_ARRAY_INDEX)
-        #define UNITY_FSR3_GETDIMS(tex, w, h)   { FfxUInt32 uElements; (tex).GetDimensions((w), (h), uElements); }
-        
+    // Only single-pass stereo instancing used array indexing
+    #if defined(UNITY_STEREO_INSTANCING_ENABLED)
+        static uint unity_StereoEyeIndex;
+        #define SLICE_ARRAY_INDEX   unity_StereoEyeIndex
+    #else
+        #define SLICE_ARRAY_INDEX  0
     #endif
+
+    // Declare and sample camera buffers as texture arrays
+    #define UNITY_FSR_TEX2D(type)          Texture2DArray<type>
+    #define UNITY_FSR_RWTEX2D(type)        RWTexture2DArray<type>
+    #define UNITY_FSR_POS(pxPos)           FfxUInt32x3(pxPos, SLICE_ARRAY_INDEX)
+    #define UNITY_FSR_UV(uv)               FfxFloat32x3(uv, SLICE_ARRAY_INDEX)
+    #define UNITY_FSR_GETDIMS(tex, w, h)   { FfxUInt32 uElements; (tex).GetDimensions((w), (h), uElements); }
+    
 #endif

Assets/Shaders/FSR3/shaders.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 8364d4f86c613ec4d999d062f5f773b8
+guid: c3f8af1cab72f0e46acba11c5820d923
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_common_types.h.meta → Assets/Shaders/FSR3/shaders/ffx_common_types.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 7974b728d5c1b6d4a8a8e3965d03f96d
+guid: ec0f8c94ee9930b438b99b82735d181b
 PluginImporter:
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@@ -7,7 +7,7 @@ PluginImporter:
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-  isOverridable: 0
+  isOverridable: 1
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@@ -43,12 +43,6 @@ PluginImporter:
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       Standalone: Win
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core.h.meta → Assets/Shaders/FSR3/shaders/ffx_core.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: b91c5f52b89ff554dacb51045a802ed8
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 PluginImporter:
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@@ -7,7 +7,7 @@ PluginImporter:
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_gpu_common.h.meta → Assets/Shaders/FSR3/shaders/ffx_core_gpu_common.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 05b921699d1374a429e32afca13137e2
+guid: 4950d6c78609df549a0ed96137bf3bf1
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_gpu_common_half.h.meta → Assets/Shaders/FSR3/shaders/ffx_core_gpu_common_half.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_hlsl.h.meta → Assets/Shaders/FSR3/shaders/ffx_core_hlsl.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_portability.h.meta → Assets/Shaders/FSR3/shaders/ffx_core_portability.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_accumulate_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_luma_instability_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_luma_pyramid_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_rcas_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/fsr3upscaler/fsr1.meta → Assets/Shaders/FSR3/shaders/fsr1.meta

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Assets/Shaders/FSR3/shaders/fsr3upscaler.meta

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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_accumulate.h.meta

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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_callbacks_hlsl.h

@@ -27,7 +27,7 @@
 #pragma dxc diagnostic push
 #pragma dxc diagnostic ignored "-Wambig-lit-shift"
 #endif //__hlsl_dx_compiler
-#include "ffx_core.h"
+#include "../ffx_core.h"
 #ifdef __hlsl_dx_compiler
 #pragma dxc diagnostic pop
 #endif //__hlsl_dx_compiler
@@ -320,20 +320,20 @@ FfxUInt32x2 SPD_RenderSize()
 #endif // #if defined(FSR3UPSCALER_BIND_CB_SPD)
 
 // Declare and sample camera buffers as regular textures, unless overridden
-#if !defined(UNITY_FSR3_TEX2D)
-#define UNITY_FSR3_TEX2D(type)          Texture2D<type>
+#if !defined(UNITY_FSR_TEX2D)
+#define UNITY_FSR_TEX2D(type)          Texture2D<type>
 #endif
-#if !defined(UNITY_FSR3_RWTEX2D)
-#define UNITY_FSR3_RWTEX2D(type)        RWTexture2D<type>
+#if !defined(UNITY_FSR_RWTEX2D)
+#define UNITY_FSR_RWTEX2D(type)        RWTexture2D<type>
 #endif
-#if !defined(UNITY_FSR3_POS)
-#define UNITY_FSR3_POS(pxPos)           (pxPos)
+#if !defined(UNITY_FSR_POS)
+#define UNITY_FSR_POS(pxPos)           (pxPos)
 #endif
-#if !defined(UNITY_FSR3_UV)
-#define UNITY_FSR3_UV(uv)               (uv)
+#if !defined(UNITY_FSR_UV)
+#define UNITY_FSR_UV(uv)               (uv)
 #endif
-#if !defined(UNITY_FSR3_GETDIMS)
-#define UNITY_FSR3_GETDIMS(tex, w, h)   (tex).GetDimensions((w), (h))
+#if !defined(UNITY_FSR_GETDIMS)
+#define UNITY_FSR_GETDIMS(tex, w, h)   (tex).GetDimensions((w), (h))
 #endif
 
 SamplerState s_PointClamp : register(s0);
@@ -359,85 +359,85 @@ FfxFloat32x2 SampleSPDMipLevel(FfxFloat32x2 fUV, FfxUInt32 mipLevel)
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_INPUT_DEPTH)
-UNITY_FSR3_TEX2D(FfxFloat32) r_input_depth : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_DEPTH);
+UNITY_FSR_TEX2D(FfxFloat32) r_input_depth : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_DEPTH);
 
 FfxFloat32 LoadInputDepth(FfxUInt32x2 iPxPos)
 {
-    return r_input_depth[UNITY_FSR3_POS(iPxPos)];
+    return r_input_depth[UNITY_FSR_POS(iPxPos)];
 }
 
 FfxFloat32 SampleInputDepth(FfxFloat32x2 fUV)
 {
-    return r_input_depth.SampleLevel(s_LinearClamp, UNITY_FSR3_UV(fUV), 0).x;
+    return r_input_depth.SampleLevel(s_LinearClamp, UNITY_FSR_UV(fUV), 0).x;
 }
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_REACTIVE_MASK)
-UNITY_FSR3_TEX2D(FfxFloat32) r_reactive_mask : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_REACTIVE_MASK);
+UNITY_FSR_TEX2D(FfxFloat32) r_reactive_mask : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_REACTIVE_MASK);
 
 FfxFloat32 LoadReactiveMask(FfxUInt32x2 iPxPos)
 {
-    return r_reactive_mask[UNITY_FSR3_POS(iPxPos)];
+    return r_reactive_mask[UNITY_FSR_POS(iPxPos)];
 }
 
 FfxInt32x2 GetReactiveMaskResourceDimensions()
 {
     FfxUInt32 uWidth;
     FfxUInt32 uHeight;
-    UNITY_FSR3_GETDIMS(r_reactive_mask, uWidth, uHeight);
+    UNITY_FSR_GETDIMS(r_reactive_mask, uWidth, uHeight);
 
     return FfxInt32x2(uWidth, uHeight);
 }
 
 FfxFloat32 SampleReactiveMask(FfxFloat32x2 fUV)
 {
-    return r_reactive_mask.SampleLevel(s_LinearClamp, UNITY_FSR3_UV(fUV), 0).x;
+    return r_reactive_mask.SampleLevel(s_LinearClamp, UNITY_FSR_UV(fUV), 0).x;
 }
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_TRANSPARENCY_AND_COMPOSITION_MASK)
-UNITY_FSR3_TEX2D(FfxFloat32) r_transparency_and_composition_mask : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_TRANSPARENCY_AND_COMPOSITION_MASK);
+UNITY_FSR_TEX2D(FfxFloat32) r_transparency_and_composition_mask : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_TRANSPARENCY_AND_COMPOSITION_MASK);
 
 FfxFloat32 LoadTransparencyAndCompositionMask(FfxUInt32x2 iPxPos)
 {
-    return r_transparency_and_composition_mask[UNITY_FSR3_POS(iPxPos)];
+    return r_transparency_and_composition_mask[UNITY_FSR_POS(iPxPos)];
 }
 
 FfxInt32x2 GetTransparencyAndCompositionMaskResourceDimensions()
 {
     FfxUInt32 uWidth;
     FfxUInt32 uHeight;
-    UNITY_FSR3_GETDIMS(r_transparency_and_composition_mask, uWidth, uHeight);
+    UNITY_FSR_GETDIMS(r_transparency_and_composition_mask, uWidth, uHeight);
 
     return FfxInt32x2(uWidth, uHeight);
 }
 
 FfxFloat32 SampleTransparencyAndCompositionMask(FfxFloat32x2 fUV)
 {
-    return r_transparency_and_composition_mask.SampleLevel(s_LinearClamp, UNITY_FSR3_UV(fUV), 0).x;
+    return r_transparency_and_composition_mask.SampleLevel(s_LinearClamp, UNITY_FSR_UV(fUV), 0).x;
 }
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_INPUT_COLOR)
-UNITY_FSR3_TEX2D(FfxFloat32x4) r_input_color_jittered : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_COLOR);
+UNITY_FSR_TEX2D(FfxFloat32x4) r_input_color_jittered : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_COLOR);
 
 FfxFloat32x3 LoadInputColor(FfxUInt32x2 iPxPos)
 {
-    return r_input_color_jittered[UNITY_FSR3_POS(iPxPos)].rgb;
+    return r_input_color_jittered[UNITY_FSR_POS(iPxPos)].rgb;
 }
 
 FfxFloat32x3 SampleInputColor(FfxFloat32x2 fUV)
 {
-    return r_input_color_jittered.SampleLevel(s_LinearClamp, UNITY_FSR3_UV(fUV), 0).rgb;
+    return r_input_color_jittered.SampleLevel(s_LinearClamp, UNITY_FSR_UV(fUV), 0).rgb;
 }
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_INPUT_MOTION_VECTORS)
-UNITY_FSR3_TEX2D(FfxFloat32x4) r_input_motion_vectors : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_MOTION_VECTORS);
+UNITY_FSR_TEX2D(FfxFloat32x4) r_input_motion_vectors : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_MOTION_VECTORS);
 
 FfxFloat32x2 LoadInputMotionVector(FfxUInt32x2 iPxDilatedMotionVectorPos)
 {
-    FfxFloat32x2 fSrcMotionVector = r_input_motion_vectors[UNITY_FSR3_POS(iPxDilatedMotionVectorPos)].xy;
+    FfxFloat32x2 fSrcMotionVector = r_input_motion_vectors[UNITY_FSR_POS(iPxDilatedMotionVectorPos)].xy;
 
     FfxFloat32x2 fUvMotionVector = fSrcMotionVector * MotionVectorScale();
 
@@ -515,11 +515,11 @@ void StoreInternalColorAndWeight(FfxUInt32x2 iPxPos, FfxFloat32x4 fColorAndWeigh
 #endif
 
 #if defined(FSR3UPSCALER_BIND_UAV_UPSCALED_OUTPUT)
-UNITY_FSR3_RWTEX2D(FfxFloat32x4) rw_upscaled_output : FFX_FSR3UPSCALER_DECLARE_UAV(FSR3UPSCALER_BIND_UAV_UPSCALED_OUTPUT);
+UNITY_FSR_RWTEX2D(FfxFloat32x4) rw_upscaled_output : FFX_FSR3UPSCALER_DECLARE_UAV(FSR3UPSCALER_BIND_UAV_UPSCALED_OUTPUT);
 
 void StoreUpscaledOutput(FfxUInt32x2 iPxPos, FfxFloat32x3 fColor)
 {
-    rw_upscaled_output[UNITY_FSR3_POS(iPxPos)] = FfxFloat32x4(fColor, 1.f);
+    rw_upscaled_output[UNITY_FSR_POS(iPxPos)] = FfxFloat32x4(fColor, 1.f);
 }
 #endif
 
@@ -830,11 +830,11 @@ void StoreDilatedReactiveMasks(FFX_PARAMETER_IN FfxUInt32x2 iPxPos, FFX_PARAMETE
 #endif
 
 #if defined(FSR3UPSCALER_BIND_SRV_INPUT_OPAQUE_ONLY)
-UNITY_FSR3_TEX2D(FfxFloat32x4) r_input_opaque_only : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_OPAQUE_ONLY);
+UNITY_FSR_TEX2D(FfxFloat32x4) r_input_opaque_only : FFX_FSR3UPSCALER_DECLARE_SRV(FSR3UPSCALER_BIND_SRV_INPUT_OPAQUE_ONLY);
 
 FfxFloat32x3 LoadOpaqueOnly(FFX_PARAMETER_IN FFX_MIN16_I2 iPxPos)
 {
-    return r_input_opaque_only[UNITY_FSR3_POS(iPxPos)].xyz;
+    return r_input_opaque_only[UNITY_FSR_POS(iPxPos)].xyz;
 }
 #endif
 

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_callbacks_hlsl.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_common.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_debug_view.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_luma_instability.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
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+guid: c34dbb67d00358d4b9de0a9fb0e0ace2
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_luma_pyramid.h

@@ -168,7 +168,7 @@ FfxFloat16x4 SpdReduce4H(FfxFloat16x4 v0, FfxFloat16x4 v1, FfxFloat16x4 v2, FfxF
 }
 #endif
 
-#include "spd/ffx_spd.h"
+#include "../spd/ffx_spd.h"
 
 void ComputeAutoExposure(FfxUInt32x3 WorkGroupId, FfxUInt32 LocalThreadIndex)
 {

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_luma_pyramid.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_prepare_inputs.h.meta

@@ -1,5 +1,5 @@
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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_rcas.h

@@ -23,7 +23,7 @@
 #define GROUP_SIZE  8
 #define FSR_RCAS_DENOISE 1
 
-#include "ffx_core.h"
+#include "../ffx_core.h"
 
 void WriteUpscaledOutput(FFX_MIN16_U2 iPxHrPos, FfxFloat32x3 fUpscaledColor)
 {
@@ -41,7 +41,7 @@ FfxFloat32x4 FsrRcasLoadF(FfxInt32x2 p)
 }
 void FsrRcasInputF(inout FfxFloat32 r, inout FfxFloat32 g, inout FfxFloat32 b) {}
 
-#include "fsr1/ffx_fsr1.h"
+#include "../fsr1/ffx_fsr1.h"
 
 void CurrFilter(FFX_MIN16_U2 pos)
 {

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Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_fsr3upscaler_shading_change_pyramid.h

@@ -275,7 +275,7 @@ FfxFloat16x4 SpdReduce4H(FfxFloat16x4 v0, FfxFloat16x4 v1, FfxFloat16x4 v2, FfxF
 }
 #endif
 
-#include "spd/ffx_spd.h"
+#include "../spd/ffx_spd.h"
 
 void ComputeShadingChangePyramid(FfxUInt32x3 WorkGroupId, FfxUInt32 LocalThreadIndex)
 {

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Assets/Shaders/FSR3/shaders/fsr3upscaler/spd.meta → Assets/Shaders/FSR3/shaders/spd.meta

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