Added FSR 3.1 implementation and moved it plus FSR 2.2 into a separate package.

Assets/FSR3 Upscaler Assets.asset

@@ -0,0 +1,26 @@
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Assets/Fsr3UpscalerAssets.asset

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Assets/Scripts/Core/Fsr3ShaderIDs.cs

@@ -1,80 +0,0 @@
-// Copyright (c) 2023 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
-{
-    internal 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 SrvAutoExposure = Shader.PropertyToID("r_auto_exposure");
-        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 SrvPrevDilatedMotionVectors = Shader.PropertyToID("r_previous_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 SrvLockStatus = Shader.PropertyToID("r_lock_status");
-        internal static readonly int SrvLockInputLuma = Shader.PropertyToID("r_lock_input_luma");
-        internal static readonly int SrvPreparedInputColor = Shader.PropertyToID("r_prepared_input_color");
-        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 SrvSceneLuminanceMips = Shader.PropertyToID("r_imgMips");
-        internal static readonly int SrvUpscaleMaximumBiasLut = Shader.PropertyToID("r_upsample_maximum_bias_lut");
-        internal static readonly int SrvDilatedReactiveMasks = Shader.PropertyToID("r_dilated_reactive_masks");
-        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");
-
-        // 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 UavLockStatus = Shader.PropertyToID("rw_lock_status");
-        internal static readonly int UavLockInputLuma = Shader.PropertyToID("rw_lock_input_luma");
-        internal static readonly int UavNewLocks = Shader.PropertyToID("rw_new_locks");
-        internal static readonly int UavPreparedInputColor = Shader.PropertyToID("rw_prepared_input_color");
-        internal static readonly int UavLumaHistory = Shader.PropertyToID("rw_luma_history");
-        internal static readonly int UavUpscaledOutput = Shader.PropertyToID("rw_upscaled_output");
-        internal static readonly int UavExposureMipLumaChange = Shader.PropertyToID("rw_img_mip_shading_change");
-        internal static readonly int UavExposureMip5 = Shader.PropertyToID("rw_img_mip_5");
-        internal static readonly int UavDilatedReactiveMasks = Shader.PropertyToID("rw_dilated_reactive_masks");
-        internal static readonly int UavAutoExposure = Shader.PropertyToID("rw_auto_exposure");
-        internal static readonly int UavSpdAtomicCount = Shader.PropertyToID("rw_spd_global_atomic");
-        internal static readonly int UavAutoReactive = Shader.PropertyToID("rw_output_autoreactive");
-        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");
-
-        // 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");
-    }
-}

Assets/Scripts/Fsr3UpscalerImageEffect.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
@@ -54,6 +54,10 @@ namespace FidelityFX
         [Tooltip("Optional 1x1 texture containing the exposure value for the current frame.")]
         public Texture exposure = null;
 
+        [Header("Debug")]
+        [Tooltip("Enable a debug view to analyze the upscaling process.")]
+        public bool enableDebugView = false;
+
         [Header("Reactivity, Transparency & Composition")] 
         [Tooltip("Optional texture to control the influence of the current frame on the reconstructed output. If unset, either an auto-generated or a default cleared reactive mask will be used.")]
         public Texture reactiveMask = null;
@@ -326,12 +330,14 @@ namespace FidelityFX
             _dispatchDescription.MotionVectorScale.x = -scaledRenderSize.x;
             _dispatchDescription.MotionVectorScale.y = -scaledRenderSize.y;
             _dispatchDescription.RenderSize = scaledRenderSize;
+            _dispatchDescription.UpscaleSize = _displaySize;
             _dispatchDescription.FrameTimeDelta = Time.unscaledDeltaTime;
             _dispatchDescription.CameraNear = _renderCamera.nearClipPlane;
             _dispatchDescription.CameraFar = _renderCamera.farClipPlane;
             _dispatchDescription.CameraFovAngleVertical = _renderCamera.fieldOfView * Mathf.Deg2Rad;
             _dispatchDescription.ViewSpaceToMetersFactor = 1.0f; // 1 unit is 1 meter in Unity
             _dispatchDescription.Reset = _resetHistory;
+            _dispatchDescription.Flags = enableDebugView ? Fsr3Upscaler.DispatchFlags.DrawDebugView : 0;
             _resetHistory = false;
 
             // Set up the parameters for the optional experimental auto-TCR feature
@@ -390,9 +396,6 @@ namespace FidelityFX
             _renderCamera.rect = _originalRect;
             _renderCamera.ResetProjectionMatrix();
 
-            // Update the input resource descriptions
-            _dispatchDescription.InputResourceSize = new Vector2Int(src.width, src.height);
-
             _dispatchCommandBuffer.Clear();
 
             if (autoGenerateReactiveMask)

Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_depth_clip_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_lock_pass.hlsl.meta

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Assets/Shaders/FSR3/shaders/ffx_fsr3upscaler_reconstruct_previous_depth_pass.hlsl.meta

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

@@ -1,338 +0,0 @@
-// This file is part of the FidelityFX SDK.
-// 
-// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
-// 
-// 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.
-
-
-/// A define for a true value in a boolean expression.
-///
-/// @ingroup CPUTypes
-#define FFX_TRUE (1)
-
-/// A define for a false value in a boolean expression.
-///
-/// @ingroup CPUTypes
-#define FFX_FALSE (0)
- 
-#if !defined(FFX_STATIC)
-/// A define to abstract declaration of static variables and functions.
-///
-/// @ingroup CPUTypes
-#define FFX_STATIC static
-#endif // #if !defined(FFX_STATIC)
-
-/// @defgroup CPUCore CPU Core
-/// Core CPU-side defines and functions
-/// 
-/// @ingroup ffxHost
-
-#ifdef __clang__
-#pragma clang diagnostic ignored "-Wunused-variable"
-#endif
-
-/// Interpret the bit layout of an IEEE-754 floating point value as an unsigned integer.
-///
-/// @param [in] x               A 32bit floating value.
-///
-/// @returns
-/// An unsigned 32bit integer value containing the bit pattern of <c><i>x</i></c>.
-/// 
-/// @ingroup CPUCore
-FFX_STATIC FfxUInt32 ffxAsUInt32(FfxFloat32 x)
-{
-    union
-    {
-        FfxFloat32 f;
-        FfxUInt32  u;
-    } bits;
-
-    bits.f = x;
-    return bits.u;
-}
-
-FFX_STATIC FfxFloat32 ffxDot2(FfxFloat32x2 a, FfxFloat32x2 b)
-{
-    return a[0] * b[0] + a[1] * b[1];
-}
-
-FFX_STATIC FfxFloat32 ffxDot3(FfxFloat32x3 a, FfxFloat32x3 b)
-{
-    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
-}
-
-FFX_STATIC FfxFloat32 ffxDot4(FfxFloat32x4 a, FfxFloat32x4 b)
-{
-    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-}
-
-/// Compute the linear interopation between two values.
-///
-/// Implemented by calling the GLSL <c><i>mix</i></c> instrinsic function. Implements the
-/// following math:
-///
-///     (1 - t) * x + t * y
-///
-/// @param [in] x               The first value to lerp between.
-/// @param [in] y               The second value to lerp between.
-/// @param [in] t               The value to determine how much of <c><i>x</i></c> and how much of <c><i>y</i></c>.
-///
-/// @returns
-/// A linearly interpolated value between <c><i>x</i></c> and <c><i>y</i></c> according to <c><i>t</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 ffxLerp(FfxFloat32 x, FfxFloat32 y, FfxFloat32 t)
-{
-    return y * t + (-x * t + x);
-}
-
-/// Compute the reciprocal of a value.
-///
-/// @param [in] x               The value to compute the reciprocal for.
-///
-/// @returns
-/// The reciprocal value of <c><i>x</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 ffxReciprocal(FfxFloat32 x)
-{
-    return 1.0f / x;
-}
-
-/// Compute the square root of a value.
-///
-/// @param [in] x                   The first value to compute the min of.
-///
-/// @returns
-/// The the square root of <c><i>x</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 ffxSqrt(FfxFloat32 x)
-{
-    return sqrt(x);
-}
-
-FFX_STATIC FfxUInt32 AShrSU1(FfxUInt32 a, FfxUInt32 b)
-{
-    return FfxUInt32(FfxInt32(a) >> FfxInt32(b));
-}
-
-/// Compute the factional part of a decimal value.
-///
-/// This function calculates <c><i>x - floor(x)</i></c>. 
-///
-/// @param [in] x               The value to compute the fractional part from.
-///
-/// @returns
-/// The fractional part of <c><i>x</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 ffxFract(FfxFloat32 x)
-{
-    return x - floor(x);
-}
-
-/// Compute the reciprocal square root of a value.
-///
-/// @param [in] x               The value to compute the reciprocal for.
-///
-/// @returns
-/// The reciprocal square root value of <c><i>x</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 rsqrt(FfxFloat32 x)
-{
-    return ffxReciprocal(ffxSqrt(x));
-}
-
-FFX_STATIC FfxFloat32 ffxMin(FfxFloat32 x, FfxFloat32 y)
-{
-    return x < y ? x : y;
-}
-
-FFX_STATIC FfxUInt32 ffxMin(FfxUInt32 x, FfxUInt32 y)
-{
-    return x < y ? x : y;
-}
-
-FFX_STATIC FfxFloat32 ffxMax(FfxFloat32 x, FfxFloat32 y)
-{
-    return x > y ? x : y;
-}
-
-FFX_STATIC FfxUInt32 ffxMax(FfxUInt32 x, FfxUInt32 y)
-{
-    return x > y ? x : y;
-}
-
-/// Clamp a value to a [0..1] range.
-///
-/// @param [in] x               The value to clamp to [0..1] range.
-///
-/// @returns
-/// The clamped version of <c><i>x</i></c>.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxFloat32 ffxSaturate(FfxFloat32 x)
-{
-    return ffxMin(1.0f, ffxMax(0.0f, x));
-}
-
-////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-FFX_STATIC void opAAddOneF3(FfxFloat32x3 d, FfxFloat32x3 a, FfxFloat32 b)
-{
-    d[0] = a[0] + b;
-    d[1] = a[1] + b;
-    d[2] = a[2] + b;
-    return;
-}
-
-FFX_STATIC void opACpyF3(FfxFloat32x3 d, FfxFloat32x3 a)
-{
-    d[0] = a[0];
-    d[1] = a[1];
-    d[2] = a[2];
-    return;
-}
-
-FFX_STATIC void opAMulF3(FfxFloat32x3 d, FfxFloat32x3 a, FfxFloat32x3 b)
-{
-    d[0] = a[0] * b[0];
-    d[1] = a[1] * b[1];
-    d[2] = a[2] * b[2];
-    return;
-}
-
-FFX_STATIC void opAMulOneF3(FfxFloat32x3 d, FfxFloat32x3 a, FfxFloat32 b)
-{
-    d[0] = a[0] * b;
-    d[1] = a[1] * b;
-    d[2] = a[2] * b;
-    return;
-}
-
-FFX_STATIC void opARcpF3(FfxFloat32x3 d, FfxFloat32x3 a)
-{
-    d[0] = ffxReciprocal(a[0]);
-    d[1] = ffxReciprocal(a[1]);
-    d[2] = ffxReciprocal(a[2]);
-    return;
-}
-
-/// Convert FfxFloat32 to half (in lower 16-bits of output).
-/// 
-/// This function implements the same fast technique that is documented here: ftp://ftp.fox-toolkit.org/pub/fasthalffloatconversion.pdf
-/// 
-/// The function supports denormals.
-/// 
-/// Some conversion rules are to make computations possibly "safer" on the GPU,
-///  -INF & -NaN -> -65504
-///  +INF & +NaN -> +65504
-///
-/// @param [in] f               The 32bit floating point value to convert.
-/// 
-/// @returns
-/// The closest 16bit floating point value to <c><i>f</i></c>.
-/// 
-/// @ingroup CPUCore
-FFX_STATIC FfxUInt32 f32tof16(FfxFloat32 f)
-{
-    static FfxUInt16 base[512] = {
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
-        0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040, 0x0080, 0x0100, 0x0200, 0x0400,
-        0x0800, 0x0c00, 0x1000, 0x1400, 0x1800, 0x1c00, 0x2000, 0x2400, 0x2800, 0x2c00, 0x3000, 0x3400, 0x3800, 0x3c00, 0x4000, 0x4400, 0x4800, 0x4c00, 0x5000,
-        0x5400, 0x5800, 0x5c00, 0x6000, 0x6400, 0x6800, 0x6c00, 0x7000, 0x7400, 0x7800, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff,
-        0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x7bff, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
-        0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
-        0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
-        0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
-        0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
-        0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8001, 0x8002,
-        0x8004, 0x8008, 0x8010, 0x8020, 0x8040, 0x8080, 0x8100, 0x8200, 0x8400, 0x8800, 0x8c00, 0x9000, 0x9400, 0x9800, 0x9c00, 0xa000, 0xa400, 0xa800, 0xac00,
-        0xb000, 0xb400, 0xb800, 0xbc00, 0xc000, 0xc400, 0xc800, 0xcc00, 0xd000, 0xd400, 0xd800, 0xdc00, 0xe000, 0xe400, 0xe800, 0xec00, 0xf000, 0xf400, 0xf800,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff,
-        0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff, 0xfbff
-    };
-    
-    static FfxUInt8 shift[512] = {
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
-        0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
-        0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-        0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18
-    };
-
-    union
-    {
-        FfxFloat32      f;
-        FfxUInt32 u;
-    } bits;
-
-    bits.f       = f;
-    FfxUInt32 u = bits.u;
-    FfxUInt32 i = u >> 23;
-    return (FfxUInt32)(base[i]) + ((u & 0x7fffff) >> shift[i]);
-}
-
-/// Pack 2x32-bit floating point values in a single 32bit value.
-///
-/// This function first converts each component of <c><i>value</i></c> into their nearest 16-bit floating
-/// point representation, and then stores the X and Y components in the lower and upper 16 bits of the
-/// 32bit unsigned integer respectively.
-///
-/// @param [in] x               A 2-dimensional floating point value to convert and pack.
-///
-/// @returns
-/// A packed 32bit value containing 2 16bit floating point values.
-///
-/// @ingroup CPUCore
-FFX_STATIC FfxUInt32 packHalf2x16(FfxFloat32x2 x)
-{
-    return f32tof16(x[0]) + (f32tof16(x[1]) << 16);
-}

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-      Standalone: Linux64
-    second:
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-      settings:
-        CPU: None
-  - first:
-      Standalone: OSXUniversal
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      Standalone: Win
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  - first:
-      Standalone: Win64
-    second:
-      enabled: 0
-      settings:
-        CPU: None
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/Core.meta → Packages/fidelityfx.fsr/Runtime.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 975411b519480574290d74d7e34d119d
+guid: b64c5aa2a705139438e2bcc551a02b97
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Packages/fidelityfx.fsr/Runtime/Common.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: e87a0efd0d1d4644abdef16b5a28bd0f
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Runtime/Common/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;
+    }
+}

Packages/fidelityfx.fsr/Runtime/Common/ResourceView.cs.meta

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

Packages/fidelityfx.fsr/Runtime/FSR2.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: cce3e495c6ece2145b041d0a6e43bb26
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2.cs

@@ -0,0 +1,302 @@
+// 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 System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// A collection of helper functions and data structures required by the FSR2 process.
+    /// </summary>
+    public static class Fsr2
+    {
+        /// <summary>
+        /// Creates a new FSR2 context with standard parameters that are appropriate for the current platform. 
+        /// </summary>
+        public static Fsr2Context CreateContext(Vector2Int displaySize, Vector2Int maxRenderSize, Fsr2Shaders shaders, InitializationFlags flags = 0)
+        {
+            if (SystemInfo.usesReversedZBuffer)
+                flags |= InitializationFlags.EnableDepthInverted;
+            else
+                flags &= ~InitializationFlags.EnableDepthInverted;
+            
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+            flags |= InitializationFlags.EnableDebugChecking;
+#endif
+            
+            Debug.Log($"Setting up FSR2 with render size: {maxRenderSize.x}x{maxRenderSize.y}, display size: {displaySize.x}x{displaySize.y}, flags: {flags}");
+            
+            var contextDescription = new ContextDescription
+            {
+                Flags = flags,
+                DisplaySize = displaySize,
+                MaxRenderSize = maxRenderSize,
+                Shaders = shaders,
+            };
+            
+            var context = new Fsr2Context();
+            context.Create(contextDescription);
+            return context;
+        }
+
+        public static float GetUpscaleRatioFromQualityMode(QualityMode qualityMode)
+        {
+            switch (qualityMode)
+            {
+                case QualityMode.NativeAA:
+                    return 1.0f;
+                case QualityMode.UltraQuality:
+                    return 1.2f;
+                case QualityMode.Quality:
+                    return 1.5f;
+                case QualityMode.Balanced:
+                    return 1.7f;
+                case QualityMode.Performance:
+                    return 2.0f;
+                case QualityMode.UltraPerformance:
+                    return 3.0f;
+                default:
+                    return 1.0f;
+            }
+        }
+
+        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,
+            UltraQuality = 1,
+            Quality = 2,
+            Balanced = 3,
+            Performance = 4,
+            UltraPerformance = 5,
+        }
+
+        [Flags]
+        public enum InitializationFlags
+        {
+            EnableHighDynamicRange = 1 << 0,
+            EnableDisplayResolutionMotionVectors = 1 << 1,
+            EnableMotionVectorsJitterCancellation = 1 << 2,
+            EnableDepthInverted = 1 << 3,
+            EnableDepthInfinite = 1 << 4,
+            EnableAutoExposure = 1 << 5,
+            EnableDynamicResolution = 1 << 6,
+            EnableFP16Usage = 1 << 7,
+            EnableDebugChecking = 1 << 8,
+        }
+
+        /// <summary>
+        /// A structure encapsulating the parameters required to initialize FidelityFX Super Resolution 2 upscaling.
+        /// </summary>
+        public struct ContextDescription
+        {
+            public InitializationFlags Flags;
+            public Vector2Int MaxRenderSize;
+            public Vector2Int DisplaySize;
+            public Fsr2Shaders Shaders;
+        }
+
+        /// <summary>
+        /// A structure encapsulating the parameters for dispatching the various passes of FidelityFX Super Resolution 2.
+        /// </summary>
+        public class DispatchDescription
+        {
+            public ResourceView Color;
+            public ResourceView Depth;
+            public ResourceView MotionVectors;
+            public ResourceView Exposure;                       // optional
+            public ResourceView Reactive;                       // optional
+            public ResourceView TransparencyAndComposition;     // optional
+            public ResourceView Output;
+            public Vector2 JitterOffset;
+            public Vector2 MotionVectorScale;
+            public Vector2Int RenderSize;
+            public Vector2Int InputResourceSize;
+            public bool EnableSharpening;
+            public float Sharpness;
+            public float FrameTimeDelta;    // in seconds
+            public float PreExposure;
+            public bool Reset;
+            public float CameraNear;
+            public float CameraFar;
+            public float CameraFovAngleVertical;
+            public float ViewSpaceToMetersFactor;
+            public bool UseTextureArrays;   // Enable texture array bindings, primarily used for HDRP and XR
+            
+            // 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;
+        }
+
+        /// <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 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;
+        }
+
+        [Flags]
+        public enum GenerateReactiveFlags
+        {
+            ApplyTonemap = 1 << 0,
+            ApplyInverseTonemap = 1 << 1,
+            ApplyThreshold = 1 << 2,
+            UseComponentsMax = 1 << 3,
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct UpscalerConstants
+        {
+            public Vector2Int renderSize;
+            public Vector2Int maxRenderSize;
+            public Vector2Int displaySize;
+            public Vector2Int inputColorResourceDimensions;
+            public Vector2Int lumaMipDimensions;
+            public int lumaMipLevelToUse;
+            public int frameIndex;
+            
+            public Vector4 deviceToViewDepth;
+            public Vector2 jitterOffset;
+            public Vector2 motionVectorScale;
+            public Vector2 downscaleFactor;
+            public Vector2 motionVectorJitterCancellation;
+            public float preExposure;
+            public float previousFramePreExposure;
+            public float tanHalfFOV;
+            public float jitterPhaseCount;
+            public float deltaTime;
+            public float dynamicResChangeFactor;
+            public float viewSpaceToMetersFactor;
+            public float padding;
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct SpdConstants
+        {
+            public uint mips;
+            public uint numWorkGroups;
+            public uint workGroupOffsetX, workGroupOffsetY;
+            public uint renderSizeX, renderSizeY;
+        }
+
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct GenerateReactiveConstants
+        {
+            public float scale;
+            public float threshold;
+            public float binaryValue;
+            public uint flags;
+        }
+
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct GenerateReactiveConstants2
+        {
+            public float autoTcThreshold;
+            public float autoTcScale;
+            public float autoReactiveScale;
+            public float autoReactiveMax;
+        }
+        
+        [Serializable, StructLayout(LayoutKind.Sequential)]
+        internal struct RcasConstants
+        {
+            public RcasConstants(uint sharpness, uint halfSharp)
+            {
+                this.sharpness = sharpness;
+                this.halfSharp = halfSharp;
+                dummy0 = dummy1 = 0;
+            }
+        
+            public readonly uint sharpness;
+            public readonly uint halfSharp;
+            public readonly uint dummy0;
+            public readonly uint dummy1;
+        }
+    }
+}

Assets/Scripts/Core/Fsr3UpscalerAssets.cs → Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2Assets.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
@@ -23,26 +23,27 @@ using UnityEngine;
 namespace FidelityFX
 {
     /// <summary>
-    /// Scriptable object containing all shader resources required by FidelityFX Super Resolution 3 (FSR3) Upscaler.
+    /// Scriptable object containing all shader resources required by FidelityFX Super Resolution 2 (FSR2).
     /// 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>
-    public class Fsr3UpscalerAssets : ScriptableObject
+    [CreateAssetMenu(fileName = "FSR2 Assets", menuName = "FidelityFX/FSR2 Assets", order = 1102)]
+    public class Fsr2Assets : ScriptableObject
     {
-        public Fsr3UpscalerShaders shaders;
+        public Fsr2Shaders shaders;
         
 #if UNITY_EDITOR
         private void Reset()
         {
-            shaders = new Fsr3UpscalerShaders
+            shaders = new Fsr2Shaders
             {
-                computeLuminancePyramidPass = FindComputeShader("ffx_fsr3upscaler_compute_luminance_pyramid_pass"),
-                reconstructPreviousDepthPass = FindComputeShader("ffx_fsr3upscaler_reconstruct_previous_depth_pass"),
-                depthClipPass = FindComputeShader("ffx_fsr3upscaler_depth_clip_pass"),
-                lockPass = FindComputeShader("ffx_fsr3upscaler_lock_pass"),
-                accumulatePass = FindComputeShader("ffx_fsr3upscaler_accumulate_pass"),
-                sharpenPass = FindComputeShader("ffx_fsr3upscaler_rcas_pass"),
-                autoGenReactivePass = FindComputeShader("ffx_fsr3upscaler_autogen_reactive_pass"),
-                tcrAutoGenPass = FindComputeShader("ffx_fsr3upscaler_tcr_autogen_pass"),
+                computeLuminancePyramidPass = FindComputeShader("ffx_fsr2_compute_luminance_pyramid_pass"),
+                reconstructPreviousDepthPass = FindComputeShader("ffx_fsr2_reconstruct_previous_depth_pass"),
+                depthClipPass = FindComputeShader("ffx_fsr2_depth_clip_pass"),
+                lockPass = FindComputeShader("ffx_fsr2_lock_pass"),
+                accumulatePass = FindComputeShader("ffx_fsr2_accumulate_pass"),
+                sharpenPass = FindComputeShader("ffx_fsr2_rcas_pass"),
+                autoGenReactivePass = FindComputeShader("ffx_fsr2_autogen_reactive_pass"),
+                tcrAutoGenPass = FindComputeShader("ffx_fsr2_tcr_autogen_pass"),
             };
         }
 
@@ -59,10 +60,10 @@ namespace FidelityFX
     }
     
     /// <summary>
-    /// All the compute shaders used by the FSR3 Upscaler.
+    /// All the compute shaders used by FSR2.
     /// </summary>
     [System.Serializable]
-    public class Fsr3UpscalerShaders
+    public class Fsr2Shaders
     {
         /// <summary>
         /// The compute shader used by the luminance pyramid computation pass.
@@ -107,19 +108,19 @@ namespace FidelityFX
         /// <summary>
         /// Returns a copy of this class and its contents.
         /// </summary>
-        public Fsr3UpscalerShaders Clone()
+        public Fsr2Shaders Clone()
         {
-            return (Fsr3UpscalerShaders)MemberwiseClone();
+            return (Fsr2Shaders)MemberwiseClone();
         }
 
         /// <summary>
         /// Returns a copy of this class with clones of all its shaders.
-        /// This can be useful if you're running multiple FSR3 Upscaler instances with different shader configurations.
+        /// This can be useful if you're running multiple FSR2 instances with different shader configurations.
         /// Be sure to clean up these clones through Dispose once you're done with them.
         /// </summary>
-        public Fsr3UpscalerShaders DeepCopy()
+        public Fsr2Shaders DeepCopy()
         {
-            return new Fsr3UpscalerShaders
+            return new Fsr2Shaders
             {
                 computeLuminancePyramidPass = Object.Instantiate(computeLuminancePyramidPass),
                 reconstructPreviousDepthPass = Object.Instantiate(reconstructPreviousDepthPass),

Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2Callbacks.cs

@@ -0,0 +1,81 @@
+// 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
+{
+    /// <summary>
+    /// A collection of callbacks required by the FSR2 process.
+    /// This allows some customization by the game dev on how to integrate FSR2 upscaling into their own game setup.
+    /// </summary>
+    public interface IFsr2Callbacks
+    {
+        /// <summary>
+        /// Apply a mipmap bias to in-game textures to prevent them from becoming blurry as the internal rendering resolution lowers.
+        /// This will need to be customized on a per-game basis, as there is no clear universal way to determine what are "in-game" textures.
+        /// The default implementation will simply apply a mipmap bias to all 2D textures, which will include things like UI textures and which might miss things like terrain texture arrays.
+        /// 
+        /// Depending on how your game organizes its assets, you will want to create a filter that more specifically selects the textures that need to have this mipmap bias applied.
+        /// You may also want to store the bias offset value and apply it to any assets that are loaded in on demand.
+        /// </summary>
+        void ApplyMipmapBias(float biasOffset);
+
+        void UndoMipmapBias();
+    }
+    
+    /// <summary>
+    /// Default implementation of IFsr2Callbacks.
+    /// These are fine for testing but a proper game will want to extend and override these methods.
+    /// </summary>
+    public class Fsr2CallbacksBase: IFsr2Callbacks
+    {
+        protected float CurrentBiasOffset = 0;
+
+        public virtual void ApplyMipmapBias(float biasOffset)
+        {
+            if (float.IsNaN(biasOffset) || float.IsInfinity(biasOffset))
+                return;
+            
+            CurrentBiasOffset += biasOffset;
+            
+            if (Mathf.Approximately(CurrentBiasOffset, 0f))
+            {
+                CurrentBiasOffset = 0f;
+            }
+
+            foreach (var texture in Resources.FindObjectsOfTypeAll<Texture2D>())
+            {
+                if (texture.mipmapCount <= 1)
+                    continue;
+                
+                texture.mipMapBias += biasOffset;
+            }
+        }
+
+        public virtual void UndoMipmapBias()
+        {
+            if (CurrentBiasOffset == 0f)
+                return;
+
+            ApplyMipmapBias(-CurrentBiasOffset);
+        }
+    }
+}

Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2Context.cs

@@ -0,0 +1,618 @@
+// 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 System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// This class loosely matches the FfxFsr2Context struct from the original FSR2 codebase.
+    /// It manages the various resources and compute passes required by the FSR2 process.
+    /// 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
+    {
+        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 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 bool _firstExecution;
+        private Vector2 _previousJitterOffset;
+        private int _resourceFrameIndex;
+
+        public void Create(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>();
+
+            // Set defaults
+            _firstExecution = true;
+            _resourceFrameIndex = 0;
+            
+            UpscalerConsts.displaySize = _contextDescription.DisplaySize;
+            
+            _resources.Create(_contextDescription);
+            CreatePasses();
+        }
+
+        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);
+        }
+        
+        public void Destroy()
+        {
+            DestroyPass(ref _tcrAutogeneratePass);
+            DestroyPass(ref _generateReactivePass);
+            DestroyPass(ref _sharpenPass);
+            DestroyPass(ref _accumulatePass);
+            DestroyPass(ref _lockPass);
+            DestroyPass(ref _depthClipPass);
+            DestroyPass(ref _reconstructPreviousDepthPass);
+            DestroyPass(ref _computeLuminancePyramidPass);
+            
+            _resources.Destroy();
+            
+            DestroyConstantBuffer(ref _tcrAutogenerateConstantsBuffer);
+            DestroyConstantBuffer(ref _generateReactiveConstantsBuffer);
+            DestroyConstantBuffer(ref _rcasConstantsBuffer);
+            DestroyConstantBuffer(ref _spdConstantsBuffer);
+            DestroyConstantBuffer(ref _upscalerConstantsBuffer);
+
+            if (_commandBuffer != null)
+            {
+                _commandBuffer.Dispose();
+                _commandBuffer = null;
+            }
+        }
+
+        public void Dispatch(Fsr2.DispatchDescription dispatchParams)
+        {
+            _commandBuffer.Clear();
+            Dispatch(dispatchParams, _commandBuffer);
+            Graphics.ExecuteCommandBuffer(_commandBuffer);
+        }
+        
+        public void Dispatch(Fsr2.DispatchDescription dispatchParams, CommandBuffer commandBuffer)
+        {
+            if ((_contextDescription.Flags & Fsr2.InitializationFlags.EnableDebugChecking) != 0)
+            {
+                DebugCheckDispatch(dispatchParams);
+            }
+            
+            if (dispatchParams.UseTextureArrays)
+                commandBuffer.EnableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+            
+            if (_firstExecution)
+            {
+                commandBuffer.SetRenderTarget(_resources.LockStatus[0]);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(_resources.LockStatus[1]);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+            }
+            
+            int frameIndex = _resourceFrameIndex % 2;
+            bool resetAccumulation = dispatchParams.Reset || _firstExecution;
+            _firstExecution = false;
+
+            // If auto exposure is enabled use the auto exposure SRV, otherwise what the app sends
+            if ((_contextDescription.Flags & Fsr2.InitializationFlags.EnableAutoExposure) != 0)
+                dispatchParams.Exposure = new ResourceView(_resources.AutoExposure);
+            else if (!dispatchParams.Exposure.IsValid) 
+                dispatchParams.Exposure = new ResourceView(_resources.DefaultExposure);
+
+            if (dispatchParams.EnableAutoReactive)
+            {
+                // Create the auto-TCR resources only when we need them
+                if (_resources.AutoReactive == null)
+                    _resources.CreateTcrAutogenResources(_contextDescription);
+
+                if (resetAccumulation)
+                {
+                    RenderTargetIdentifier opaqueOnly = dispatchParams.ColorOpaqueOnly.IsValid ? dispatchParams.ColorOpaqueOnly.RenderTarget : Fsr2ShaderIDs.SrvOpaqueOnly;
+                    commandBuffer.Blit(_resources.PrevPreAlpha[frameIndex ^ 1], opaqueOnly);
+                }
+            }
+            else if (_resources.AutoReactive != null)
+            {
+                // Destroy the auto-TCR resources if we don't use the feature 
+                _resources.DestroyTcrAutogenResources();
+            }
+            
+            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);
+            
+            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 = (_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.ClearRenderTarget(false, true, Color.clear);
+                
+                commandBuffer.SetRenderTarget(_resources.InternalUpscaled[frameIndex ^ 1]);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                
+                commandBuffer.SetRenderTarget(_resources.SceneLuminance);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                
+                // Auto exposure always used to track luma changes in locking logic
+                commandBuffer.SetRenderTarget(_resources.AutoExposure);
+                commandBuffer.ClearRenderTarget(false, true, new Color(0f, 1e8f, 0f, 0f));
+
+                // Reset atomic counter to 0
+                commandBuffer.SetRenderTarget(_resources.SpdAtomicCounter);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+            }
+            
+            // 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;
+            commandBuffer.SetRenderTarget(Fsr2ShaderIDs.UavReconstructedPrevNearestDepth);
+            commandBuffer.ClearRenderTarget(false, true, depthInverted ? Color.clear : Color.white);
+            
+            // Auto exposure
+            SetupSpdConstants(dispatchParams, out var dispatchThreadGroupCount);
+            
+            // Initialize constant buffers data
+            commandBuffer.SetBufferData(_upscalerConstantsBuffer, _upscalerConstantsArray);
+            commandBuffer.SetBufferData(_spdConstantsBuffer, _spdConstantsArray);
+
+            // Auto reactive
+            if (dispatchParams.EnableAutoReactive)
+            {
+                GenerateTransparencyCompositionReactive(dispatchParams, commandBuffer, frameIndex);
+                dispatchParams.Reactive = new ResourceView(_resources.AutoReactive);
+                dispatchParams.TransparencyAndComposition = new ResourceView(_resources.AutoComposition);
+            }
+            
+            // Compute luminance pyramid
+            _computeLuminancePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
+
+            // Reconstruct previous depth
+            _reconstructPreviousDepthPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+
+            // Depth clip
+            _depthClipPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+
+            // Create locks
+            _lockPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+
+            // Accumulate
+            _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
+
+            if (dispatchParams.EnableSharpening)
+            {
+                // Compute the constants
+                SetupRcasConstants(dispatchParams);
+                commandBuffer.SetBufferData(_rcasConstantsBuffer, _rcasConstantsArray);
+                
+                // 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);
+            }
+
+            _resourceFrameIndex = (_resourceFrameIndex + 1) % MaxQueuedFrames;
+
+            Fsr2Resources.DestroyAliasableResources(commandBuffer);
+            
+            commandBuffer.DisableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
+        }
+
+        public void GenerateReactiveMask(Fsr2.GenerateReactiveDescription dispatchParams)
+        {
+            _commandBuffer.Clear();
+            GenerateReactiveMask(dispatchParams, _commandBuffer);
+            Graphics.ExecuteCommandBuffer(_commandBuffer);
+        }
+
+        public void GenerateReactiveMask(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);
+            
+            ((Fsr2GenerateReactivePass)_generateReactivePass).ScheduleDispatch(commandBuffer, dispatchParams, dispatchSrcX, dispatchSrcY);
+        }
+
+        private void GenerateTransparencyCompositionReactive(Fsr2.DispatchDescription dispatchParams, CommandBuffer commandBuffer, int frameIndex)
+        {
+            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);
+            
+            _tcrAutogeneratePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
+        }
+
+        private void SetupConstants(Fsr2.DispatchDescription dispatchParams, bool resetAccumulation)
+        {
+            ref Fsr2.UpscalerConstants constants = ref UpscalerConsts;
+            
+            constants.jitterOffset = dispatchParams.JitterOffset;
+            constants.renderSize = dispatchParams.RenderSize;
+            constants.maxRenderSize = _contextDescription.MaxRenderSize;
+            constants.inputColorResourceDimensions = dispatchParams.InputResourceSize;
+
+            // Compute the horizontal FOV for the shader from the vertical one
+            float aspectRatio = (float)dispatchParams.RenderSize.x / dispatchParams.RenderSize.y;
+            float cameraAngleHorizontal = Mathf.Atan(Mathf.Tan(dispatchParams.CameraFovAngleVertical / 2.0f) * aspectRatio) * 2.0f;
+            constants.tanHalfFOV = Mathf.Tan(cameraAngleHorizontal * 0.5f);
+            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);
+            
+            // 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);
+            constants.previousFramePreExposure = constants.preExposure;
+            constants.preExposure = (dispatchParams.PreExposure != 0) ? dispatchParams.PreExposure : 1.0f;
+            
+            // Motion vector data
+            Vector2Int motionVectorsTargetSize = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) != 0 ? constants.displaySize : constants.renderSize;
+            constants.motionVectorScale = dispatchParams.MotionVectorScale / motionVectorsTargetSize;
+            
+            // Compute jitter cancellation
+            if ((_contextDescription.Flags & Fsr2.InitializationFlags.EnableMotionVectorsJitterCancellation) != 0)
+            {
+                constants.motionVectorJitterCancellation = (_previousJitterOffset - constants.jitterOffset) / motionVectorsTargetSize;
+                _previousJitterOffset = constants.jitterOffset;
+            }
+
+            int jitterPhaseCount = Fsr2.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.DisplaySize.x);
+            if (resetAccumulation || constants.jitterPhaseCount == 0)
+            {
+                constants.jitterPhaseCount = jitterPhaseCount;
+            }
+            else
+            {
+                int jitterPhaseCountDelta = (int)(jitterPhaseCount - constants.jitterPhaseCount);
+                if (jitterPhaseCountDelta > 0)
+                    constants.jitterPhaseCount++;
+                else if (jitterPhaseCountDelta < 0)
+                    constants.jitterPhaseCount--;
+            }
+            
+            // Convert delta time to seconds and clamp to [0, 1]
+            constants.deltaTime = Mathf.Clamp01(dispatchParams.FrameTimeDelta);
+
+            if (resetAccumulation)
+                constants.frameIndex = 0;
+            else
+                constants.frameIndex++;
+
+            // Shading change usage of the SPD mip levels
+            constants.lumaMipLevelToUse = Fsr2Pass.ShadingChangeMipLevel;
+
+            float mipDiv = 2 << constants.lumaMipLevelToUse;
+            constants.lumaMipDimensions.x = (int)(constants.maxRenderSize.x / mipDiv);
+            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)
+        {
+            int sharpnessIndex = Mathf.RoundToInt(Mathf.Clamp01(dispatchParams.Sharpness) * (RcasConfigs.Length - 1));
+            RcasConsts = RcasConfigs[sharpnessIndex];
+        }
+
+        private void SetupSpdConstants(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;
+            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)
+        {
+            if (!dispatchParams.Color.IsValid)
+            {
+                Debug.LogError("Color resource is null");
+            }
+            
+            if (!dispatchParams.Depth.IsValid)
+            {
+                Debug.LogError("Depth resource is null");
+            }
+            
+            if (!dispatchParams.MotionVectors.IsValid)
+            {
+                Debug.LogError("MotionVectors resource is null");
+            }
+            
+            if (!dispatchParams.Output.IsValid)
+            {
+                Debug.LogError("Output resource is null");
+            }
+            
+            if (dispatchParams.Exposure.IsValid && (_contextDescription.Flags & Fsr2.InitializationFlags.EnableAutoExposure) != 0)
+            {
+                Debug.LogWarning("Exposure resource provided, however auto exposure flag is present");
+            }
+
+            if (Mathf.Abs(dispatchParams.JitterOffset.x) > 1.0f || Mathf.Abs(dispatchParams.JitterOffset.y) > 1.0f)
+            {
+                Debug.LogWarning("JitterOffset contains value outside of expected range [-1.0, 1.0]");
+            }
+
+            if (dispatchParams.MotionVectorScale.x > _contextDescription.MaxRenderSize.x || dispatchParams.MotionVectorScale.y > _contextDescription.MaxRenderSize.y)
+            {
+                Debug.LogWarning("MotionVectorScale contains scale value greater than MaxRenderSize");
+            }
+
+            if (dispatchParams.MotionVectorScale.x == 0.0f || dispatchParams.MotionVectorScale.y == 0.0f)
+            {
+                Debug.LogWarning("MotionVectorScale contains zero scale value");
+            }
+
+            if (dispatchParams.RenderSize.x > _contextDescription.MaxRenderSize.x || dispatchParams.RenderSize.y > _contextDescription.MaxRenderSize.y)
+            {
+                Debug.LogWarning("RenderSize is greater than context MaxRenderSize");
+            }
+
+            if (dispatchParams.RenderSize.x == 0 || dispatchParams.RenderSize.y == 0)
+            {
+                Debug.LogWarning("RenderSize contains zero dimension");
+            }
+
+            if (dispatchParams.FrameTimeDelta > 1.0f)
+            {
+                Debug.LogWarning("FrameTimeDelta is greater than 1.0f - this value should be seconds (~0.0166 for 60fps)");
+            }
+
+            if (dispatchParams.PreExposure == 0.0f)
+            {
+                Debug.LogError("PreExposure provided as 0.0f which is invalid");
+            }
+
+            bool infiniteDepth = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInfinite) != 0;
+            bool inverseDepth = (_contextDescription.Flags & Fsr2.InitializationFlags.EnableDepthInverted) != 0;
+
+            if (inverseDepth)
+            {
+                if (dispatchParams.CameraNear < dispatchParams.CameraFar)
+                {
+                    Debug.LogWarning("EnableDepthInverted flag is present yet CameraNear is less than CameraFar");
+                }
+
+                if (infiniteDepth)
+                {
+                    if (dispatchParams.CameraNear < float.MaxValue)
+                    {
+                        Debug.LogWarning("EnableDepthInfinite and EnableDepthInverted present, yet CameraNear != float.MaxValue");
+                    }
+                }
+                
+                if (dispatchParams.CameraFar < 0.075f)
+                {
+                    Debug.LogWarning("EnableDepthInverted present, CameraFar value is very low which may result in depth separation artefacting");
+                }
+            }
+            else
+            {
+                if (dispatchParams.CameraNear > dispatchParams.CameraFar)
+                {
+                    Debug.LogWarning("CameraNear is greater than CameraFar in non-inverted-depth context");
+                }
+
+                if (infiniteDepth)
+                {
+                    if (dispatchParams.CameraFar < float.MaxValue)
+                    {
+                        Debug.LogWarning("EnableDepthInfinite present, yet CameraFar != float.MaxValue");
+                    }
+                }
+
+                if (dispatchParams.CameraNear < 0.075f)
+                {
+                    Debug.LogWarning("CameraNear value is very low which may result in depth separation artefacting");
+                }
+            }
+
+            if (dispatchParams.CameraFovAngleVertical <= 0.0f)
+            {
+                Debug.LogError("CameraFovAngleVertical is 0.0f - this value should be > 0.0f");
+            }
+
+            if (dispatchParams.CameraFovAngleVertical > Mathf.PI)
+            {
+                Debug.LogError("CameraFovAngleVertical is greater than 180 degrees/PI");
+            }
+        }
+
+        /// <summary>
+        /// The FSR2 C++ codebase uses floats bitwise converted to ints to pass sharpness parameters to the RCAS shader.
+        /// This is not possible in C# without enabling unsafe code compilation, so to avoid that we instead use a table of precomputed values.
+        /// </summary>
+        private static readonly Fsr2.RcasConstants[] RcasConfigs = new []
+        {
+            new Fsr2.RcasConstants(1048576000u, 872428544u),
+            new Fsr2.RcasConstants(1049178080u, 877212745u),
+            new Fsr2.RcasConstants(1049823372u, 882390168u),
+            new Fsr2.RcasConstants(1050514979u, 887895276u),
+            new Fsr2.RcasConstants(1051256227u, 893859143u),
+            new Fsr2.RcasConstants(1052050675u, 900216232u),
+            new Fsr2.RcasConstants(1052902144u, 907032080u),
+            new Fsr2.RcasConstants(1053814727u, 914306687u),
+            new Fsr2.RcasConstants(1054792807u, 922105590u),
+            new Fsr2.RcasConstants(1055841087u, 930494326u),
+            new Fsr2.RcasConstants(1056964608u, 939538432u),
+            new Fsr2.RcasConstants(1057566688u, 944322633u),
+            new Fsr2.RcasConstants(1058211980u, 949500056u),
+            new Fsr2.RcasConstants(1058903587u, 955005164u),
+            new Fsr2.RcasConstants(1059644835u, 960969031u),
+            new Fsr2.RcasConstants(1060439283u, 967326120u),
+            new Fsr2.RcasConstants(1061290752u, 974141968u),
+            new Fsr2.RcasConstants(1062203335u, 981416575u),
+            new Fsr2.RcasConstants(1063181415u, 989215478u),
+            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;
+        }
+    }
+}

Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2Pass.cs

@@ -0,0 +1,380 @@
+// 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 System;
+using System.Runtime.InteropServices;
+using UnityEngine;
+using UnityEngine.Profiling;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// Base class for all of the compute passes that make up the FSR2 process.
+    /// 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 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)
+        {
+            ContextDescription = contextDescription;
+            Resources = resources;
+            Constants = constants;
+        }
+
+        public virtual void Dispose()
+        {
+        }
+        
+        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)
+        {
+            InitComputeShader(passName, shader, ContextDescription.Flags);
+        }
+        
+        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);
+
+            bool useLut = false;
+#if UNITY_2022_1_OR_NEWER   // This will also work in 2020.3.43+ and 2021.3.14+ 
+            if (SystemInfo.computeSubGroupSize == 64)
+            {
+                useLut = true;
+            }
+#endif
+            
+            // This matches the permutation rules from the CreatePipeline* functions
+            if ((flags & 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");
+        }
+    }
+
+    internal class Fsr2ComputeLuminancePyramidPass : Fsr2Pass
+    {
+        private readonly ComputeBuffer _spdConstants;
+        
+        public Fsr2ComputeLuminancePyramidPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
+            : base(contextDescription, resources, constants)
+        {
+            _spdConstants = spdConstants;
+            
+            InitComputeShader("Compute Luminance Pyramid", contextDescription.Shaders.computeLuminancePyramidPass);
+        }
+
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+            ref var color = ref dispatchParams.Color;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
+
+            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.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.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+
+    internal class Fsr2ReconstructPreviousDepthPass : Fsr2Pass
+    {
+        public Fsr2ReconstructPreviousDepthPass(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)
+        {
+            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.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+    
+    internal class Fsr2DepthClipPass : Fsr2Pass
+    {
+        public Fsr2DepthClipPass(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)
+        {
+            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.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvReconstructedPrevNearestDepth, Fsr2ShaderIDs.UavReconstructedPrevNearestDepth);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedDepth, Fsr2ShaderIDs.UavDilatedDepth);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvPrevDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex ^ 1]);
+
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+
+    internal class Fsr2LockPass : Fsr2Pass
+    {
+        public Fsr2LockPass(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)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvLockInputLuma, Fsr2ShaderIDs.UavLockInputLuma);
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+    
+    internal class Fsr2AccumulatePass : Fsr2Pass
+    {
+        private const string SharpeningKeyword = "FFX_FSR2_OPTION_APPLY_SHARPENING";
+    
+#if UNITY_2021_2_OR_NEWER
+        private readonly LocalKeyword _sharpeningKeyword;
+#endif
+        
+        public Fsr2AccumulatePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants)
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Reproject & Accumulate", contextDescription.Shaders.accumulatePass);
+#if UNITY_2021_2_OR_NEWER
+            _sharpeningKeyword = new LocalKeyword(ComputeShader, SharpeningKeyword);
+#endif
+        }
+
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+#if UNITY_2021_2_OR_NEWER
+            if (dispatchParams.EnableSharpening)
+                commandBuffer.EnableKeyword(ComputeShader, _sharpeningKeyword);
+            else
+                commandBuffer.DisableKeyword(ComputeShader, _sharpeningKeyword);
+#else
+            if (dispatchParams.EnableSharpening)
+                commandBuffer.EnableShaderKeyword(SharpeningKeyword);
+            else
+                commandBuffer.DisableShaderKeyword(SharpeningKeyword);
+#endif
+            
+            if ((ContextDescription.Flags & Fsr2.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
+            {
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            }
+            else
+            {
+                ref var motionVectors = ref dispatchParams.MotionVectors;
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
+            }
+
+            ref var exposure = ref dispatchParams.Exposure;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+
+            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.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.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLockStatus, Resources.LockStatus[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavLumaHistory, Resources.LumaHistory[frameIndex]);
+            
+            ref var output = ref dispatchParams.Output;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+
+    internal class Fsr2SharpenPass : Fsr2Pass
+    {
+        private readonly ComputeBuffer _rcasConstants;
+
+        public Fsr2SharpenPass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer rcasConstants)
+            : base(contextDescription, resources, constants)
+        {
+            _rcasConstants = rcasConstants;
+            
+            InitComputeShader("RCAS Sharpening", contextDescription.Shaders.sharpenPass);
+        }
+
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+            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]);
+            
+            ref var output = ref dispatchParams.Output;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr2ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbRcas, _rcasConstants, 0, Marshal.SizeOf<Fsr2.RcasConstants>());
+
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+
+    internal class Fsr2GenerateReactivePass : Fsr2Pass
+    {
+        private readonly ComputeBuffer _generateReactiveConstants;
+
+        public Fsr2GenerateReactivePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer generateReactiveConstants)
+            : base(contextDescription, resources, null)
+        {
+            _generateReactiveConstants = generateReactiveConstants;
+            
+            InitComputeShader("Auto-Generate Reactive Mask", contextDescription.Shaders.autoGenReactivePass);
+        }
+
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+        }
+
+        public void ScheduleDispatch(CommandBuffer commandBuffer, 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);
+            
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _generateReactiveConstants, 0, Marshal.SizeOf<Fsr2.GenerateReactiveConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            
+            commandBuffer.EndSample(Sampler);
+        }
+    }
+
+    internal class Fsr2TcrAutogeneratePass : Fsr2Pass
+    {
+        private readonly ComputeBuffer _tcrAutogenerateConstants;
+
+        public Fsr2TcrAutogeneratePass(Fsr2.ContextDescription contextDescription, Fsr2Resources resources, ComputeBuffer constants, ComputeBuffer tcrAutogenerateConstants)
+            : base(contextDescription, resources, constants)
+        {
+            _tcrAutogenerateConstants = tcrAutogenerateConstants;
+            
+            InitComputeShader("Auto-Generate Transparency & Composition Mask", contextDescription.Shaders.tcrAutoGenPass);
+        }
+
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr2.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+            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.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.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbFsr2, Constants, 0, Marshal.SizeOf<Fsr2.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr2ShaderIDs.CbGenReactive, _tcrAutogenerateConstants, 0, Marshal.SizeOf<Fsr2.GenerateReactiveConstants2>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+}

Assets/Scripts/Core/Fsr3UpscalerResources.cs → Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2Resources.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
@@ -26,10 +26,10 @@ using UnityEngine.Rendering;
 namespace FidelityFX
 {
     /// <summary>
-    /// Helper class for bundling and managing persistent resources required by the FSR3 Upscaler process.
+    /// 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 Fsr3UpscalerResources
+    internal class Fsr2Resources
     {
         public Texture2D DefaultExposure;
         public Texture2D DefaultReactive;
@@ -47,7 +47,7 @@ namespace FidelityFX
         public readonly RenderTexture[] PrevPreAlpha = new RenderTexture[2];
         public readonly RenderTexture[] PrevPostAlpha = new RenderTexture[2];
 
-        public void Create(Fsr3Upscaler.ContextDescription contextDescription)
+        public void Create(Fsr2.ContextDescription contextDescription)
         {
             // Generate the data for the LUT
             const int lanczos2LutWidth = 128;
@@ -55,7 +55,7 @@ namespace FidelityFX
             for (int currentLanczosWidthIndex = 0; currentLanczosWidthIndex < lanczos2LutWidth; ++currentLanczosWidthIndex)
             {
                 float x = 2.0f * currentLanczosWidthIndex / (lanczos2LutWidth - 1);
-                float y = Fsr3Upscaler.Lanczos2(x);
+                float y = Fsr2.Lanczos2(x);
                 lanczos2Weights[currentLanczosWidthIndex] = y;
             }
 
@@ -115,7 +115,7 @@ namespace FidelityFX
             CreateDoubleBufferedResource(LumaHistory, "FSR3UPSCALER_LumaHistory", contextDescription.DisplaySize, GraphicsFormat.R8G8B8A8_UNorm);
         }
 
-        public void CreateTcrAutogenResources(Fsr3Upscaler.ContextDescription contextDescription)
+        public void CreateTcrAutogenResources(Fsr2.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 };
@@ -134,39 +134,39 @@ namespace FidelityFX
         
         // 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, Fsr2.ContextDescription contextDescription, Fsr2.DispatchDescription dispatchParams)
         {
             Vector2Int displaySize = contextDescription.DisplaySize;
             Vector2Int maxRenderSize = contextDescription.MaxRenderSize;
 
             // FSR3UPSCALER_ReconstructedPrevNearestDepth: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_UINT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavReconstructedPrevNearestDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_UInt, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavReconstructedPrevNearestDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_UInt, 1, true);
 
             // FSR3UPSCALER_DilatedDepth: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R32_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavDilatedDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavDilatedDepth, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R32_SFloat, 1, true);
 
             // FSR3UPSCALER_LockInputLuma: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavLockInputLuma, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavLockInputLuma, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
             
             // FSR3UPSCALER_DilatedReactiveMasks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8G8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavDilatedReactiveMasks, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R8G8_UNorm, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavDilatedReactiveMasks, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R8G8_UNorm, 1, true);
             
             // FSR3UPSCALER_PreparedInputColor: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16B16A16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavPreparedInputColor, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16G16B16A16_SFloat, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavPreparedInputColor, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R16G16B16A16_SFloat, 1, true);
             
             // FSR3UPSCALER_NewLocks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
-            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavNewLocks, displaySize.x, displaySize.y, 0, default, GraphicsFormat.R8_UNorm, 1, true);
+            commandBuffer.GetTemporaryRT(Fsr2ShaderIDs.UavNewLocks, displaySize.x, displaySize.y, 0, default, GraphicsFormat.R8_UNorm, 1, true);
         }
 
         public static void DestroyAliasableResources(CommandBuffer commandBuffer)
         {
             // Release all of the aliasable resources used this frame
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavReconstructedPrevNearestDepth);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavDilatedDepth);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavLockInputLuma);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavDilatedReactiveMasks);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavPreparedInputColor);
-            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavNewLocks);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavReconstructedPrevNearestDepth);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavDilatedDepth);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavLockInputLuma);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavDilatedReactiveMasks);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavPreparedInputColor);
+            commandBuffer.ReleaseTemporaryRT(Fsr2ShaderIDs.UavNewLocks);
         }
 
         private static void CreateDoubleBufferedResource(RenderTexture[] resource, string name, Vector2Int size, GraphicsFormat format)

Packages/fidelityfx.fsr/Runtime/FSR2/Fsr2ShaderIDs.cs

@@ -0,0 +1,80 @@
+// 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
+{
+    public static class Fsr2ShaderIDs
+    {
+        // Shader resource views, i.e. read-only bindings
+        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 SrvAutoExposure = Shader.PropertyToID("r_auto_exposure");
+        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 SrvPrevDilatedMotionVectors = Shader.PropertyToID("r_previous_dilated_motion_vectors");
+        public static readonly int SrvDilatedDepth = Shader.PropertyToID("r_dilatedDepth");
+        public static readonly int SrvInternalUpscaled = Shader.PropertyToID("r_internal_upscaled_color");
+        public static readonly int SrvLockStatus = Shader.PropertyToID("r_lock_status");
+        public static readonly int SrvLockInputLuma = Shader.PropertyToID("r_lock_input_luma");
+        public static readonly int SrvPreparedInputColor = Shader.PropertyToID("r_prepared_input_color");
+        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 SrvSceneLuminanceMips = Shader.PropertyToID("r_imgMips");
+        public static readonly int SrvUpscaleMaximumBiasLut = Shader.PropertyToID("r_upsample_maximum_bias_lut");
+        public static readonly int SrvDilatedReactiveMasks = Shader.PropertyToID("r_dilated_reactive_masks");
+        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
+        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_dilatedDepth");
+        public static readonly int UavInternalUpscaled = Shader.PropertyToID("rw_internal_upscaled_color");
+        public static readonly int UavLockStatus = Shader.PropertyToID("rw_lock_status");
+        public static readonly int UavLockInputLuma = Shader.PropertyToID("rw_lock_input_luma");
+        public static readonly int UavNewLocks = Shader.PropertyToID("rw_new_locks");
+        public static readonly int UavPreparedInputColor = Shader.PropertyToID("rw_prepared_input_color");
+        public static readonly int UavLumaHistory = Shader.PropertyToID("rw_luma_history");
+        public static readonly int UavUpscaledOutput = Shader.PropertyToID("rw_upscaled_output");
+        public static readonly int UavExposureMipLumaChange = Shader.PropertyToID("rw_img_mip_shading_change");
+        public static readonly int UavExposureMip5 = Shader.PropertyToID("rw_img_mip_5");
+        public static readonly int UavDilatedReactiveMasks = Shader.PropertyToID("rw_dilated_reactive_masks");
+        public static readonly int UavAutoExposure = Shader.PropertyToID("rw_auto_exposure");
+        public static readonly int UavSpdAtomicCount = Shader.PropertyToID("rw_spd_global_atomic");
+        public static readonly int UavAutoReactive = Shader.PropertyToID("rw_output_autoreactive");
+        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
+        public static readonly int CbFsr2 = Shader.PropertyToID("cbFSR2");
+        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/Shaders/FSR3.meta → Packages/fidelityfx.fsr/Runtime/FSR3.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 661ffc6dbd7389b4da99fb9f749745de
+guid: 16d16ad51c3bc2a429d3da6788f65e07
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3ShaderIDs.cs

@@ -0,0 +1,91 @@
+// 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
+{
+    public static class Fsr3ShaderIDs
+    {
+        // Shader resource views, i.e. read-only bindings
+        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
+        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
+        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");
+    }
+}

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3ShaderIDs.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: a1e3e7c189594b94897510b4a20b8a00
+timeCreated: 1679060863

Assets/Scripts/Core/Fsr3Upscaler.cs → Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3Upscaler.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
@@ -49,7 +49,7 @@ namespace FidelityFX
             var contextDescription = new ContextDescription
             {
                 Flags = flags,
-                DisplaySize = displaySize,
+                MaxUpscaleSize = displaySize,
                 MaxRenderSize = maxRenderSize,
                 Shaders = shaders,
             };
@@ -158,6 +158,12 @@ namespace FidelityFX
             EnableDebugChecking = 1 << 8,
         }
 
+        [Flags]
+        public enum DispatchFlags
+        {
+            DrawDebugView = 1 << 0,
+        }
+
         /// <summary>
         /// A structure encapsulating the parameters required to initialize FidelityFX Super Resolution 3 upscaling.
         /// </summary>
@@ -165,7 +171,7 @@ namespace FidelityFX
         {
             public InitializationFlags Flags;
             public Vector2Int MaxRenderSize;
-            public Vector2Int DisplaySize;
+            public Vector2Int MaxUpscaleSize;
             public Fsr3UpscalerShaders Shaders;
         }
 
@@ -184,7 +190,7 @@ namespace FidelityFX
             public Vector2 JitterOffset;
             public Vector2 MotionVectorScale;
             public Vector2Int RenderSize;
-            public Vector2Int InputResourceSize;
+            public Vector2Int UpscaleSize;
             public bool EnableSharpening;
             public float Sharpness;
             public float FrameTimeDelta;    // in seconds
@@ -194,6 +200,8 @@ namespace FidelityFX
             public float CameraFar;
             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;
@@ -233,27 +241,30 @@ namespace FidelityFX
         internal struct UpscalerConstants
         {
             public Vector2Int renderSize;
+            public Vector2Int previousFrameRenderSize;
+
+            public Vector2Int upscaleSize;
+            public Vector2Int previousFrameUpscaleSize;
+            
             public Vector2Int maxRenderSize;
-            public Vector2Int displaySize;
-            public Vector2Int inputColorResourceDimensions;
-            public Vector2Int lumaMipDimensions;
-            public int lumaMipLevelToUse;
-            public int frameIndex;
+            public Vector2Int maxUpscaleSize;
             
             public Vector4 deviceToViewDepth;
+            
             public Vector2 jitterOffset;
+            public Vector2 previousFrameJitterOffset;
+            
             public Vector2 motionVectorScale;
             public Vector2 downscaleFactor;
+            
             public Vector2 motionVectorJitterCancellation;
-            public float preExposure;
-            public float previousFramePreExposure;
             public float tanHalfFOV;
             public float jitterPhaseCount;
+            
             public float deltaTime;
-            public float dynamicResChangeFactor;
+            public float deltaPreExposure;
             public float viewSpaceToMetersFactor;
-
-            public int dummy;
+            public float frameIndex;
         }
         
         [Serializable, StructLayout(LayoutKind.Sequential)]
@@ -299,35 +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;
-    }
 }

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3Upscaler.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 7ee72b891c35d614eac306ca6154b66d
+timeCreated: 1673441954

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerAssets.cs

@@ -0,0 +1,177 @@
+// 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;
+using UnityEngine.Serialization;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// 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;
+        
+#if UNITY_EDITOR
+        private void Reset()
+        {
+            shaders = new Fsr3UpscalerShaders
+            {
+                prepareInputsPass = FindComputeShader("ffx_fsr3upscaler_prepare_inputs_pass"),
+                lumaPyramidPass = FindComputeShader("ffx_fsr3upscaler_luma_pyramid_pass"),
+                shadingChangePyramidPass = FindComputeShader("ffx_fsr3upscaler_shading_change_pyramid_pass"),
+                shadingChangePass = FindComputeShader("ffx_fsr3upscaler_shading_change_pass"),
+                prepareReactivityPass = FindComputeShader("ffx_fsr3upscaler_prepare_reactivity_pass"),
+                lumaInstabilityPass = FindComputeShader("ffx_fsr3upscaler_luma_instability_pass"),
+                accumulatePass = FindComputeShader("ffx_fsr3upscaler_accumulate_pass"),
+                sharpenPass = FindComputeShader("ffx_fsr3upscaler_rcas_pass"),
+                autoGenReactivePass = FindComputeShader("ffx_fsr3upscaler_autogen_reactive_pass"),
+                tcrAutoGenPass = FindComputeShader("ffx_fsr3upscaler_tcr_autogen_pass"),
+                debugViewPass = FindComputeShader("ffx_fsr3upscaler_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 the FSR3 Upscaler.
+    /// </summary>
+    [System.Serializable]
+    public class Fsr3UpscalerShaders
+    {
+        /// <summary>
+        /// The compute shader used by the prepare inputs pass.
+        /// </summary>
+        public ComputeShader prepareInputsPass;
+        
+        /// <summary>
+        /// The compute shader used by the luminance pyramid computation pass.
+        /// </summary>
+        public ComputeShader lumaPyramidPass;
+
+        /// <summary>
+        /// The compute shader used by the shading change pyramid pass.
+        /// </summary>
+        public ComputeShader shadingChangePyramidPass;
+
+        /// <summary>
+        /// The compute shader used by the shading change pass.
+        /// </summary>
+        public ComputeShader shadingChangePass;
+
+        /// <summary>
+        /// The compute shader used by the prepare reactivity pass.
+        /// </summary>
+        public ComputeShader prepareReactivityPass;
+        
+        /// <summary>
+        /// The compute shader used by the luma instability pass.
+        /// </summary>
+        public ComputeShader lumaInstabilityPass;
+
+        /// <summary>
+        /// The compute shader used by the accumulation pass.
+        /// </summary>
+        public ComputeShader accumulatePass;
+
+        /// <summary>
+        /// The compute shader used by the RCAS sharpening pass.
+        /// </summary>
+        public ComputeShader sharpenPass;
+
+        /// <summary>
+        /// The compute shader used to auto-generate a reactive mask.
+        /// </summary>
+        public ComputeShader autoGenReactivePass;
+
+        /// <summary>
+        /// The compute shader used to auto-generate a transparency & composition mask.
+        /// </summary>
+        public ComputeShader tcrAutoGenPass;
+
+        /// <summary>
+        /// The compute shader used to display a debug view.
+        /// </summary>
+        public ComputeShader debugViewPass;
+        
+        /// <summary>
+        /// Returns a copy of this class and its contents.
+        /// </summary>
+        public Fsr3UpscalerShaders Clone()
+        {
+            return (Fsr3UpscalerShaders)MemberwiseClone();
+        }
+
+        /// <summary>
+        /// Returns a copy of this class with clones of all its shaders.
+        /// This can be useful if you're running multiple FSR3 Upscaler instances with different shader configurations.
+        /// Be sure to clean up these clones through Dispose once you're done with them.
+        /// </summary>
+        public Fsr3UpscalerShaders DeepCopy()
+        {
+            return new Fsr3UpscalerShaders
+            {
+                prepareInputsPass = Object.Instantiate(prepareInputsPass),
+                lumaPyramidPass = Object.Instantiate(lumaPyramidPass),
+                shadingChangePyramidPass = Object.Instantiate(shadingChangePyramidPass),
+                shadingChangePass = Object.Instantiate(shadingChangePass),
+                prepareReactivityPass = Object.Instantiate(prepareReactivityPass),
+                lumaInstabilityPass = Object.Instantiate(lumaInstabilityPass),
+                accumulatePass = Object.Instantiate(accumulatePass),
+                sharpenPass = Object.Instantiate(sharpenPass),
+                autoGenReactivePass = Object.Instantiate(autoGenReactivePass),
+                tcrAutoGenPass = Object.Instantiate(tcrAutoGenPass),
+                debugViewPass = Object.Instantiate(debugViewPass),
+            };
+        }
+
+        /// <summary>
+        /// Destroy all the shaders within this instance.
+        /// Use this only on clones created through DeepCopy.
+        /// </summary>
+        public void Dispose()
+        {
+            Object.Destroy(prepareInputsPass);
+            Object.Destroy(lumaPyramidPass);
+            Object.Destroy(shadingChangePyramidPass);
+            Object.Destroy(shadingChangePass);
+            Object.Destroy(prepareReactivityPass);
+            Object.Destroy(lumaInstabilityPass);
+            Object.Destroy(accumulatePass);
+            Object.Destroy(sharpenPass);
+            Object.Destroy(autoGenReactivePass);
+            Object.Destroy(tcrAutoGenPass);
+            Object.Destroy(debugViewPass);
+        }
+    }
+}

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerAssets.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 2dbcc608a4754d049a14a0bcce2eb40b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Core/Fsr3UpscalerCallbacks.cs → Packages/fidelityfx.fsr/Runtime/FSR3/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

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerCallbacks.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: d52448255f58a6a42bfcf1634f4dd1a8
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Core/Fsr3UpscalerContext.cs → Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerContext.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
@@ -38,14 +38,19 @@ namespace FidelityFX
         private Fsr3Upscaler.ContextDescription _contextDescription;
         private CommandBuffer _commandBuffer;
         
-        private Fsr3UpscalerPass _depthClipPass;
-        private Fsr3UpscalerPass _reconstructPreviousDepthPass;
-        private Fsr3UpscalerPass _lockPass;
+        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 _computeLuminancePyramidPass;
         private Fsr3UpscalerPass _generateReactivePass;
         private Fsr3UpscalerPass _tcrAutogeneratePass;
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+        private Fsr3UpscalerPass _debugViewPass;
+#endif
 
         private readonly Fsr3UpscalerResources _resources = new Fsr3UpscalerResources();
 
@@ -70,8 +75,10 @@ namespace FidelityFX
         private ref Fsr3Upscaler.GenerateReactiveConstants2 TcrAutoGenConsts => ref _tcrAutogenerateConstantsArray[0];
 
         private bool _firstExecution;
-        private Vector2 _previousJitterOffset;
         private int _resourceFrameIndex;
+        private Vector2 _previousJitterOffset;
+        private float _preExposure;
+        private float _previousFramePreExposure;
 
         public void Create(Fsr3Upscaler.ContextDescription contextDescription)
         {
@@ -88,7 +95,7 @@ namespace FidelityFX
             _firstExecution = true;
             _resourceFrameIndex = 0;
             
-            UpscalerConsts.displaySize = _contextDescription.DisplaySize;
+            UpscalerConsts.maxUpscaleSize = _contextDescription.MaxUpscaleSize;
             
             _resources.Create(_contextDescription);
             CreatePasses();
@@ -96,26 +103,36 @@ namespace FidelityFX
 
         private void CreatePasses()
         {
-            _computeLuminancePyramidPass = new Fsr3UpscalerComputeLuminancePyramidPass(_contextDescription, _resources, _upscalerConstantsBuffer, _spdConstantsBuffer);
-            _reconstructPreviousDepthPass = new Fsr3UpscalerReconstructPreviousDepthPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _depthClipPass = new Fsr3UpscalerDepthClipPass(_contextDescription, _resources, _upscalerConstantsBuffer);
-            _lockPass = new Fsr3UpscalerLockPass(_contextDescription, _resources, _upscalerConstantsBuffer);
+            _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);
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+            _debugViewPass = new Fsr3UpscalerDebugViewPass(_contextDescription, _resources, _upscalerConstantsBuffer);
+#endif
         }
         
         public void Destroy()
         {
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+            DestroyPass(ref _debugViewPass);
+#endif
             DestroyPass(ref _tcrAutogeneratePass);
             DestroyPass(ref _generateReactivePass);
-            DestroyPass(ref _computeLuminancePyramidPass);
+            DestroyPass(ref _lumaPyramidPass);
             DestroyPass(ref _sharpenPass);
             DestroyPass(ref _accumulatePass);
-            DestroyPass(ref _lockPass);
-            DestroyPass(ref _reconstructPreviousDepthPass);
-            DestroyPass(ref _depthClipPass);
+            DestroyPass(ref _prepareReactivityPass);
+            DestroyPass(ref _shadingChangePass);
+            DestroyPass(ref _shadingChangePyramidPass);
+            DestroyPass(ref _lumaInstabilityPass);
+            DestroyPass(ref _prepareInputsPass);
             
             _resources.Destroy();
             
@@ -145,12 +162,19 @@ namespace FidelityFX
             {
                 DebugCheckDispatch(dispatchParams);
             }
+
+            if (dispatchParams.UseTextureArrays)
+                commandBuffer.EnableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
             
             if (_firstExecution)
             {
-                commandBuffer.SetRenderTarget(_resources.LockStatus[0]);
+                commandBuffer.SetRenderTarget(_resources.Accumulation[0]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
-                commandBuffer.SetRenderTarget(_resources.LockStatus[1]);
+                commandBuffer.SetRenderTarget(_resources.Accumulation[1]);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(_resources.Luma[0]);
+                commandBuffer.ClearRenderTarget(false, true, Color.clear);
+                commandBuffer.SetRenderTarget(_resources.Luma[1]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
             }
             
@@ -160,7 +184,7 @@ namespace FidelityFX
 
             // If auto exposure is enabled use the auto exposure SRV, otherwise what the app sends
             if ((_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableAutoExposure) != 0)
-                dispatchParams.Exposure = new ResourceView(_resources.AutoExposure);
+                dispatchParams.Exposure = new ResourceView(_resources.FrameInfo);
             else if (!dispatchParams.Exposure.IsValid) 
                 dispatchParams.Exposure = new ResourceView(_resources.DefaultExposure);
 
@@ -192,23 +216,22 @@ namespace FidelityFX
             const int threadGroupWorkRegionDim = 8;
             int dispatchSrcX = (UpscalerConsts.renderSize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
             int dispatchSrcY = (UpscalerConsts.renderSize.y + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstX = (_contextDescription.DisplaySize.x + (threadGroupWorkRegionDim - 1)) / threadGroupWorkRegionDim;
-            int dispatchDstY = (_contextDescription.DisplaySize.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;
 
             // Clear reconstructed depth for max depth store
             if (resetAccumulation)
             {
-                commandBuffer.SetRenderTarget(_resources.LockStatus[frameIndex ^ 1]);
+                commandBuffer.SetRenderTarget(_resources.Accumulation[frameIndex ^ 1]);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
                 
-                commandBuffer.SetRenderTarget(_resources.InternalUpscaled[frameIndex ^ 1]);
-                commandBuffer.ClearRenderTarget(false, true, Color.clear);
-                
-                commandBuffer.SetRenderTarget(_resources.SceneLuminance);
+                commandBuffer.SetRenderTarget(_resources.SpdMips);
                 commandBuffer.ClearRenderTarget(false, true, Color.clear);
                 
                 // Auto exposure always used to track luma changes in locking logic
-                commandBuffer.SetRenderTarget(_resources.AutoExposure);
+                commandBuffer.SetRenderTarget(_resources.FrameInfo);
                 commandBuffer.ClearRenderTarget(false, true, new Color(0f, 1e8f, 0f, 0f));
 
                 // Reset atomic counter to 0
@@ -218,7 +241,7 @@ namespace FidelityFX
             
             // 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;
-            commandBuffer.SetRenderTarget(Fsr3ShaderIDs.UavReconstructedPrevNearestDepth);
+            commandBuffer.SetRenderTarget(_resources.ReconstructedPrevNearestDepth);
             commandBuffer.ClearRenderTarget(false, true, depthInverted ? Color.clear : Color.white);
             
             // Auto exposure
@@ -236,19 +259,13 @@ namespace FidelityFX
                 dispatchParams.TransparencyAndComposition = new ResourceView(_resources.AutoComposition);
             }
             
-            // Compute luminance pyramid
-            _computeLuminancePyramidPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchThreadGroupCount.x, dispatchThreadGroupCount.y);
-
-            // Reconstruct previous depth
-            _reconstructPreviousDepthPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
-
-            // Depth clip
-            _depthClipPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
-
-            // Create locks
-            _lockPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchSrcX, dispatchSrcY);
-
-            // Accumulate
+            _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);
+            
             _accumulatePass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
 
             if (dispatchParams.EnableSharpening)
@@ -259,14 +276,23 @@ namespace FidelityFX
                 
                 // Dispatch RCAS
                 const int threadGroupWorkRegionDimRcas = 16;
-                int threadGroupsX = (Screen.width + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
-                int threadGroupsY = (Screen.height + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
+                int threadGroupsX = (UpscalerConsts.upscaleSize.x + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
+                int threadGroupsY = (UpscalerConsts.upscaleSize.y + threadGroupWorkRegionDimRcas - 1) / threadGroupWorkRegionDimRcas;
                 _sharpenPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, threadGroupsX, threadGroupsY);
             }
+            
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+            if ((dispatchParams.Flags & Fsr3Upscaler.DispatchFlags.DrawDebugView) != 0)
+            {
+                _debugViewPass.ScheduleDispatch(commandBuffer, dispatchParams, frameIndex, dispatchDstX, dispatchDstY);
+            }
+#endif
 
             _resourceFrameIndex = (_resourceFrameIndex + 1) % MaxQueuedFrames;
 
             Fsr3UpscalerResources.DestroyAliasableResources(commandBuffer);
+            
+            commandBuffer.DisableShaderKeyword("UNITY_FSR_TEXTURE2D_X_ARRAY");
         }
 
         public void GenerateReactiveMask(Fsr3Upscaler.GenerateReactiveDescription dispatchParams)
@@ -309,11 +335,13 @@ namespace FidelityFX
         private void SetupConstants(Fsr3Upscaler.DispatchDescription dispatchParams, bool resetAccumulation)
         {
             ref Fsr3Upscaler.UpscalerConstants constants = ref UpscalerConsts;
-            
+
+            constants.previousFrameJitterOffset = constants.jitterOffset;
             constants.jitterOffset = dispatchParams.JitterOffset;
+
+            constants.previousFrameRenderSize = constants.renderSize;
             constants.renderSize = dispatchParams.RenderSize;
             constants.maxRenderSize = _contextDescription.MaxRenderSize;
-            constants.inputColorResourceDimensions = dispatchParams.InputResourceSize;
 
             // Compute the horizontal FOV for the shader from the vertical one
             float aspectRatio = (float)dispatchParams.RenderSize.x / dispatchParams.RenderSize.y;
@@ -323,14 +351,32 @@ namespace FidelityFX
 
             // Compute params to enable device depth to view space depth computation in shader
             constants.deviceToViewDepth = SetupDeviceDepthToViewSpaceDepthParams(dispatchParams);
+
+            constants.previousFrameUpscaleSize = constants.upscaleSize;
+            if (dispatchParams.UpscaleSize.x == 0 && dispatchParams.UpscaleSize.y == 0)
+            {
+                constants.upscaleSize = _contextDescription.MaxUpscaleSize;
+            }
+            else
+            {
+                constants.upscaleSize = dispatchParams.UpscaleSize;
+            }
             
             // 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);
-            constants.previousFramePreExposure = constants.preExposure;
-            constants.preExposure = (dispatchParams.PreExposure != 0) ? dispatchParams.PreExposure : 1.0f;
+            constants.downscaleFactor = new Vector2((float)constants.renderSize.x / constants.upscaleSize.x, (float)constants.renderSize.y / constants.upscaleSize.y);
+            
+            // Calculate pre-exposure relevant factors
+            constants.deltaPreExposure = 1.0f;
+            _previousFramePreExposure = _preExposure;
+            _preExposure = dispatchParams.PreExposure != 0.0f ? dispatchParams.PreExposure : 1.0f;
+
+            if (_previousFramePreExposure > 0.0f)
+            {
+                constants.deltaPreExposure = _preExposure / _previousFramePreExposure;
+            }
             
             // Motion vector data
-            Vector2Int motionVectorsTargetSize = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) != 0 ? constants.displaySize : constants.renderSize;
+            Vector2Int motionVectorsTargetSize = (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) != 0 ? constants.upscaleSize : constants.renderSize;
             constants.motionVectorScale = dispatchParams.MotionVectorScale / motionVectorsTargetSize;
             
             // Compute jitter cancellation
@@ -340,7 +386,7 @@ namespace FidelityFX
                 _previousJitterOffset = constants.jitterOffset;
             }
 
-            int jitterPhaseCount = Fsr3Upscaler.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.DisplaySize.x);
+            int jitterPhaseCount = Fsr3Upscaler.GetJitterPhaseCount(dispatchParams.RenderSize.x, _contextDescription.MaxUpscaleSize.x);
             if (resetAccumulation || constants.jitterPhaseCount == 0)
             {
                 constants.jitterPhaseCount = jitterPhaseCount;
@@ -360,14 +406,7 @@ namespace FidelityFX
             if (resetAccumulation)
                 constants.frameIndex = 0;
             else
-                constants.frameIndex++;
-
-            // Shading change usage of the SPD mip levels
-            constants.lumaMipLevelToUse = Fsr3UpscalerPass.ShadingChangeMipLevel;
-
-            float mipDiv = 2 << constants.lumaMipLevelToUse;
-            constants.lumaMipDimensions.x = (int)(constants.maxRenderSize.x / mipDiv);
-            constants.lumaMipDimensions.y = (int)(constants.maxRenderSize.y / mipDiv);
+                constants.frameIndex += 1.0f;
         }
         
         private Vector4 SetupDeviceDepthToViewSpaceDepthParams(Fsr3Upscaler.DispatchDescription dispatchParams)
@@ -458,14 +497,14 @@ namespace FidelityFX
                 Debug.LogError("MotionVectors resource is null");
             }
             
-            if (!dispatchParams.Output.IsValid)
+            if (dispatchParams.Exposure.IsValid && (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableAutoExposure) != 0)
             {
-                Debug.LogError("Output resource is null");
+                Debug.LogWarning("Exposure resource provided, however auto exposure flag is present");
             }
             
-            if (dispatchParams.Exposure.IsValid && (_contextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableAutoExposure) != 0)
+            if (!dispatchParams.Output.IsValid)
             {
-                Debug.LogWarning("Exposure resource provided, however auto exposure flag is present");
+                Debug.LogError("Output resource is null");
             }
 
             if (Mathf.Abs(dispatchParams.JitterOffset.x) > 1.0f || Mathf.Abs(dispatchParams.JitterOffset.y) > 1.0f)
@@ -493,6 +532,11 @@ namespace FidelityFX
                 Debug.LogWarning("RenderSize contains zero dimension");
             }
 
+            if (dispatchParams.Sharpness < 0.0f || dispatchParams.Sharpness > 1.0f)
+            {
+                Debug.LogWarning("Sharpness contains value outside of expected range [0.0, 1.0]");
+            }
+
             if (dispatchParams.FrameTimeDelta > 1.0f)
             {
                 Debug.LogWarning("FrameTimeDelta is greater than 1.0f - this value should be seconds (~0.0166 for 60fps)");

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerContext.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 742dda30b4604d5488e7eeda3cf04d56
+timeCreated: 1673442225

Assets/Scripts/Core/Fsr3UpscalerPass.cs → Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerPass.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
@@ -21,6 +21,7 @@
 using System;
 using System.Runtime.InteropServices;
 using UnityEngine;
+using UnityEngine.Profiling;
 using UnityEngine.Rendering;
 
 namespace FidelityFX
@@ -32,14 +33,14 @@ namespace FidelityFX
     /// </summary>
     internal abstract class Fsr3UpscalerPass: IDisposable
     {
-        internal const int ShadingChangeMipLevel = 4;   // This matches the FFX_FSR3UPSCALER_SHADING_CHANGE_MIP_LEVEL define
-
         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)
         {
@@ -52,8 +53,15 @@ namespace FidelityFX
         {
         }
 
-        public abstract void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY);
+        public void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.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, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY);
+        
         protected void InitComputeShader(string passName, ComputeShader shader)
         {
             InitComputeShader(passName, shader, ContextDescription.Flags);
@@ -63,11 +71,12 @@ 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;
             KernelIndex = ComputeShader.FindKernel("CS");
+            Sampler = CustomSampler.Create(passName);
 
             bool useLut = false;
 #if UNITY_2022_1_OR_NEWER   // This will also work in 2020.3.43+ and 2021.3.14+ 
@@ -84,37 +93,64 @@ 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");
+        }
+    }
+    
+    internal class Fsr3UpscalerPrepareInputsPass : Fsr3UpscalerPass
+    {
+        public Fsr3UpscalerPrepareInputsPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+            : base(contextDescription, resources, constants)
+        {
+            InitComputeShader("Prepare Inputs", contextDescription.Shaders.prepareInputsPass);
+        }
 
-            // 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");
-            }
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+            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.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>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
         }
     }
 
-    internal class Fsr3UpscalerComputeLuminancePyramidPass : Fsr3UpscalerPass
+    internal class Fsr3UpscalerLumaPyramidPass : Fsr3UpscalerPass
     {
         private readonly ComputeBuffer _spdConstants;
         
-        public Fsr3UpscalerComputeLuminancePyramidPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
+        public Fsr3UpscalerLumaPyramidPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
             : base(contextDescription, resources, constants)
         {
             _spdConstants = spdConstants;
             
-            InitComputeShader("compute_luminance_pyramid_pass", contextDescription.Shaders.computeLuminancePyramidPass);
+            InitComputeShader("Compute Luminance Pyramid", contextDescription.Shaders.lumaPyramidPass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
-            ref var color = ref dispatchParams.Color;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepth, Fsr3ShaderIDs.UavIntermediate);
 
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavSpdAtomicCount, Resources.SpdAtomicCounter);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavExposureMipLumaChange, Resources.SceneLuminance, ShadingChangeMipLevel);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavExposureMip5, Resources.SceneLuminance, 5);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAutoExposure, Resources.AutoExposure);
+            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.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants, 0, Marshal.SizeOf<Fsr3Upscaler.SpdConstants>());
@@ -123,62 +159,85 @@ namespace FidelityFX
         }
     }
 
-    internal class Fsr3UpscalerReconstructPreviousDepthPass : Fsr3UpscalerPass
+    internal class Fsr3UpscalerShadingChangePyramidPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerReconstructPreviousDepthPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        private readonly ComputeBuffer _spdConstants;
+        
+        public Fsr3UpscalerShadingChangePyramidPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants, ComputeBuffer spdConstants)
             : base(contextDescription, resources, constants)
         {
-            InitComputeShader("reconstruct_previous_depth_pass", contextDescription.Shaders.reconstructPreviousDepthPass);
+            _spdConstants = spdConstants;
+            
+            InitComputeShader("Compute Shading Change Pyramid", contextDescription.Shaders.shadingChangePyramidPass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
-            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, 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.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPreviousLuma, Resources.Luma[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
-
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+            
+            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.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbSpd, _spdConstants, 0, Marshal.SizeOf<Fsr3Upscaler.SpdConstants>());
             
             commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
         }
     }
     
-    internal class Fsr3UpscalerDepthClipPass : Fsr3UpscalerPass
+    internal class Fsr3UpscalerShadingChangePass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerDepthClipPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerShadingChangePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
-            InitComputeShader("depth_clip_pass", contextDescription.Shaders.depthClipPass);
+            InitComputeShader("Compute Shading Change", contextDescription.Shaders.shadingChangePass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        {
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvSpdMips, Resources.SpdMips);
+            
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+
+    internal class Fsr3UpscalerPrepareReactivityPass : Fsr3UpscalerPass
+    {
+        public Fsr3UpscalerPrepareReactivityPass(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)
         {
-            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, 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.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+
+            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.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.SrvReconstructedPrevNearestDepth, Fsr3ShaderIDs.UavReconstructedPrevNearestDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedDepth, Fsr3ShaderIDs.UavDilatedDepth);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPrevDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex ^ 1]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavAccumulation, Resources.Accumulation[frameIndex]); 
 
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
             
@@ -186,17 +245,29 @@ namespace FidelityFX
         }
     }
 
-    internal class Fsr3UpscalerLockPass : Fsr3UpscalerPass
+    internal class Fsr3UpscalerLumaInstabilityPass : Fsr3UpscalerPass
     {
-        public Fsr3UpscalerLockPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
+        public Fsr3UpscalerLumaInstabilityPass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
-            InitComputeShader("lock_pass", contextDescription.Shaders.lockPass);
+            InitComputeShader("Compute Luminance Instability", contextDescription.Shaders.lumaInstabilityPass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLockInputLuma, Fsr3ShaderIDs.UavLockInputLuma);
+            ref var exposure = ref dispatchParams.Exposure;
+            
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
+            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.SrvFarthestDepthMip1, Fsr3ShaderIDs.UavFarthestDepthMip1);
+            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>());
             
             commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
@@ -214,13 +285,13 @@ namespace FidelityFX
         public Fsr3UpscalerAccumulatePass(Fsr3Upscaler.ContextDescription contextDescription, Fsr3UpscalerResources resources, ComputeBuffer constants)
             : base(contextDescription, resources, constants)
         {
-            InitComputeShader("accumulate_pass", contextDescription.Shaders.accumulatePass);
+            InitComputeShader("Accumulate", contextDescription.Shaders.accumulatePass);
 #if UNITY_2021_2_OR_NEWER
             _sharpeningKeyword = new LocalKeyword(ComputeShader, SharpeningKeyword);
 #endif
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
 #if UNITY_2021_2_OR_NEWER
             if (dispatchParams.EnableSharpening)
@@ -234,9 +305,16 @@ namespace FidelityFX
                 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.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedReactiveMasks, Fsr3ShaderIDs.UavDilatedReactiveMasks);
+            
             if ((ContextDescription.Flags & Fsr3Upscaler.InitializationFlags.EnableDisplayResolutionMotionVectors) == 0)
             {
-                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedMotionVectors[frameIndex]);
+                commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedMotionVectors, Resources.DilatedVelocity);
             }
             else
             {
@@ -244,24 +322,14 @@ namespace FidelityFX
                 commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputMotionVectors, motionVectors.RenderTarget, motionVectors.MipLevel, motionVectors.SubElement);
             }
 
-            ref var exposure = ref dispatchParams.Exposure;
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
-
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvDilatedReactiveMasks, Fsr3ShaderIDs.UavDilatedReactiveMasks);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInternalUpscaled, Resources.InternalUpscaled[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLockStatus, Resources.LockStatus[frameIndex ^ 1]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvPreparedInputColor, Fsr3ShaderIDs.UavPreparedInputColor);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLanczosLut, Resources.LanczosLut);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvUpscaleMaximumBiasLut, Resources.MaximumBiasLut);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvSceneLuminanceMips, Resources.SceneLuminance);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvAutoExposure, Resources.AutoExposure);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaHistory, Resources.LumaHistory[frameIndex ^ 1]);
-
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLockStatus, Resources.LockStatus[frameIndex]);
-            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavLumaHistory, Resources.LumaHistory[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvFarthestDepthMip1, Fsr3ShaderIDs.UavFarthestDepthMip1);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvCurrentLuma, Resources.Luma[frameIndex]);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvLumaInstability, Fsr3ShaderIDs.UavIntermediate);
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputColor, color.RenderTarget, color.MipLevel, color.SubElement);
             
-            ref var output = ref dispatchParams.Output;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavInternalUpscaled, Resources.InternalUpscaled[frameIndex]);
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
 
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
@@ -279,10 +347,10 @@ namespace FidelityFX
         {
             _rcasConstants = rcasConstants;
             
-            InitComputeShader("rcas_pass", contextDescription.Shaders.sharpenPass);
+            InitComputeShader("RCAS Sharpening", contextDescription.Shaders.sharpenPass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
             ref var exposure = ref dispatchParams.Exposure;
             commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.SrvInputExposure, exposure.RenderTarget, exposure.MipLevel, exposure.SubElement);
@@ -307,15 +375,17 @@ namespace FidelityFX
         {
             _generateReactiveConstants = generateReactiveConstants;
             
-            InitComputeShader("autogen_reactive_pass", contextDescription.Shaders.autoGenReactivePass);
+            InitComputeShader("Auto-Generate Reactive Mask", contextDescription.Shaders.autoGenReactivePass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
         }
 
         public void ScheduleDispatch(CommandBuffer commandBuffer, 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;
@@ -327,6 +397,8 @@ namespace FidelityFX
             commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbGenReactive, _generateReactiveConstants, 0, Marshal.SizeOf<Fsr3Upscaler.GenerateReactiveConstants>());
             
             commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+            
+            commandBuffer.EndSample(Sampler);
         }
     }
 
@@ -339,10 +411,10 @@ namespace FidelityFX
         {
             _tcrAutogenerateConstants = tcrAutogenerateConstants;
             
-            InitComputeShader("tcr_autogen_pass", contextDescription.Shaders.tcrAutoGenPass);
+            InitComputeShader("Auto-Generate Transparency & Composition Mask", contextDescription.Shaders.tcrAutoGenPass);
         }
 
-        public override void ScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
+        protected override void DoScheduleDispatch(CommandBuffer commandBuffer, Fsr3Upscaler.DispatchDescription dispatchParams, int frameIndex, int dispatchX, int dispatchY)
         {
             ref var color = ref dispatchParams.Color;
             ref var motionVectors = ref dispatchParams.MotionVectors;
@@ -369,4 +441,32 @@ namespace FidelityFX
             commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
         }
     }
+
+#if UNITY_EDITOR || DEVELOPMENT_BUILD
+    internal class Fsr3UpscalerDebugViewPass : Fsr3UpscalerPass
+    {
+        public Fsr3UpscalerDebugViewPass(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)
+        {
+            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);
+            
+            ref var output = ref dispatchParams.Output;
+            commandBuffer.SetComputeTextureParam(ComputeShader, KernelIndex, Fsr3ShaderIDs.UavUpscaledOutput, output.RenderTarget, output.MipLevel, output.SubElement);
+            
+            commandBuffer.SetComputeConstantBufferParam(ComputeShader, Fsr3ShaderIDs.CbFsr3Upscaler, Constants, 0, Marshal.SizeOf<Fsr3Upscaler.UpscalerConstants>());
+            
+            commandBuffer.DispatchCompute(ComputeShader, KernelIndex, dispatchX, dispatchY, 1);
+        }
+    }
+#endif
 }

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerPass.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 9e0cf27d80d1d4d4c81450791a411ead
+timeCreated: 1676885169

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerResources.cs

@@ -0,0 +1,245 @@
+// 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 System;
+using UnityEngine;
+using UnityEngine.Experimental.Rendering;
+using UnityEngine.Rendering;
+
+namespace FidelityFX
+{
+    /// <summary>
+    /// 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
+    {
+        public Texture2D LanczosLut;
+        public Texture2D DefaultExposure;
+        public Texture2D DefaultReactive;
+        
+        public RenderTexture SpdAtomicCounter;
+        public RenderTexture SpdMips;
+        public RenderTexture DilatedVelocity;
+        public RenderTexture DilatedDepth;
+        public RenderTexture ReconstructedPrevNearestDepth;
+        public RenderTexture FrameInfo;
+        public RenderTexture AutoReactive;
+        public RenderTexture AutoComposition;
+        
+        public readonly RenderTexture[] Accumulation = new RenderTexture[2];
+        public readonly RenderTexture[] Luma = new RenderTexture[2];
+        public readonly RenderTexture[] InternalUpscaled = new RenderTexture[2];
+        public readonly RenderTexture[] LumaHistory = new RenderTexture[2];
+        public readonly RenderTexture[] PrevPreAlpha = new RenderTexture[2];
+        public readonly RenderTexture[] PrevPostAlpha = new RenderTexture[2];
+
+        public void Create(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;
+            }
+
+            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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+            
+            // 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();
+
+            // 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);
+            
+            // Resources FSR3UPSCALER_Luma1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_NONE
+            CreateDoubleBufferedResource(Luma, "FSR3UPSCALER_Luma", maxRenderSize, GraphicsFormat.R16_SFloat);
+            
+            // Resources FSR3UPSCALER_InternalUpscaled1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16B16A16_FLOAT, FFX_RESOURCE_FLAGS_NONE
+            CreateDoubleBufferedResource(InternalUpscaled, "FSR3UPSCALER_InternalUpscaled", contextDescription.MaxUpscaleSize, GraphicsFormat.R16G16B16A16_SFloat);
+            
+            // Resources FSR3UPSCALER_LumaHistory1/2: FFX_RESOURCE_USAGE_RENDERTARGET | FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16G16B16A16_FLOAT, FFX_RESOURCE_FLAGS_NONE
+            CreateDoubleBufferedResource(LumaHistory, "FSR3UPSCALER_LumaHistory", maxRenderSize, GraphicsFormat.R16G16B16A16_SFloat);
+        }
+
+        public void CreateTcrAutogenResources(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();
+
+            // 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();
+
+            // 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);
+
+            // Resources FSR3UPSCALER_PrevPostAlpha0/1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R11G11B10_FLOAT, FFX_RESOURCE_FLAGS_NONE
+            CreateDoubleBufferedResource(PrevPostAlpha, "FSR3UPSCALER_PrevPostAlpha", contextDescription.MaxRenderSize, GraphicsFormat.B10G11R11_UFloatPack32);
+        }
+        
+        // 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)
+        {
+            Vector2Int maxUpscaleSize = contextDescription.MaxUpscaleSize;
+            Vector2Int maxRenderSize = contextDescription.MaxRenderSize;
+            Vector2Int maxRenderSizeDiv2 = maxRenderSize / 2;
+            
+            // FSR3UPSCALER_IntermediateFp16x1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
+            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);
+            
+            // FSR3UPSCALER_NewLocks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
+            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavNewLocks, maxUpscaleSize.x, maxUpscaleSize.y, 0, default, GraphicsFormat.R8_UNorm, 1, true);
+            
+            // FSR3UPSCALER_FarthestDepthMip1: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R16_FLOAT, FFX_RESOURCE_FLAGS_ALIASABLE
+            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavFarthestDepthMip1, maxRenderSizeDiv2.x, maxRenderSizeDiv2.y, 0, default, GraphicsFormat.R16_SFloat, 1, true);
+            
+            // FSR3UPSCALER_DilatedReactiveMasks: FFX_RESOURCE_USAGE_UAV, FFX_SURFACE_FORMAT_R8G8B8A8_UNORM, FFX_RESOURCE_FLAGS_ALIASABLE
+            commandBuffer.GetTemporaryRT(Fsr3ShaderIDs.UavDilatedReactiveMasks, maxRenderSize.x, maxRenderSize.y, 0, default, GraphicsFormat.R8G8B8A8_UNorm, 1, true);
+        }
+
+        public static void DestroyAliasableResources(CommandBuffer commandBuffer)
+        {
+            // Release all of the aliasable resources used this frame
+            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavDilatedReactiveMasks);
+            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavFarthestDepthMip1);
+            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavNewLocks);
+            commandBuffer.ReleaseTemporaryRT(Fsr3ShaderIDs.UavShadingChange);
+            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();
+            
+            DestroyResource(LumaHistory);
+            DestroyResource(InternalUpscaled);
+            DestroyResource(Luma);
+            DestroyResource(Accumulation);
+            
+            DestroyResource(ref FrameInfo);
+            DestroyResource(ref ReconstructedPrevNearestDepth);
+            DestroyResource(ref DilatedDepth);
+            DestroyResource(ref DilatedVelocity);
+            DestroyResource(ref SpdMips);
+            DestroyResource(ref SpdAtomicCounter);
+            
+            DestroyResource(ref DefaultReactive);
+            DestroyResource(ref DefaultExposure);
+            DestroyResource(ref LanczosLut);
+        }
+
+        public void DestroyTcrAutogenResources()
+        {
+            DestroyResource(PrevPostAlpha);
+            DestroyResource(PrevPreAlpha);
+            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]);
+        }
+    }
+}

Packages/fidelityfx.fsr/Runtime/FSR3/Fsr3UpscalerResources.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 6749e0e55c9ac5a4f869bc73dfbb7163
+timeCreated: 1677236102

Packages/fidelityfx.fsr/Runtime/FidelityFX.FSR.asmdef

@@ -0,0 +1,14 @@
+{
+    "name": "FidelityFX.FSR",
+    "rootNamespace": "FidelityFX",
+    "references": [],
+    "includePlatforms": [],
+    "excludePlatforms": [],
+    "allowUnsafeCode": false,
+    "overrideReferences": false,
+    "precompiledReferences": [],
+    "autoReferenced": true,
+    "defineConstraints": [],
+    "versionDefines": [],
+    "noEngineReferences": false
+}

Packages/fidelityfx.fsr/Runtime/FidelityFX.FSR.asmdef.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: eb1f729ceec147d4a813e8e75b65dc12
+AssemblyDefinitionImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders.meta → Packages/fidelityfx.fsr/Shaders.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: f1c65c7377a34fe41beb57484d87a08b
+guid: af3a6660394230a4bb247808bbefe9f4
 folderAsset: yes
 DefaultImporter:
   externalObjects: {}

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_accumulate_pass.compute

@@ -0,0 +1,41 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+#pragma multi_compile_local __ FFX_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE
+#pragma multi_compile_local __ FFX_FSR2_OPTION_HDR_COLOR_INPUT
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
+#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
+
+#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_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE
+#undef FFX_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE
+#define FFX_FSR2_OPTION_REPROJECT_USE_LANCZOS_TYPE 1
+#endif
+
+#include "shaders/ffx_fsr2_accumulate_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_accumulate_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 7e791d69a5be98247a93b63897bc64df
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/FSR3/ffx_fsr3upscaler_depth_clip_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr2_autogen_reactive_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
@@ -21,12 +21,12 @@
 #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 __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FSR2_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_depth_clip_pass.hlsl"
+#include "shaders/ffx_fsr2_autogen_reactive_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_autogen_reactive_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 67ee1b32ca5e4234db9f06984c783dee
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/FSR3/ffx_fsr3upscaler_compute_luminance_pyramid_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr2_compute_luminance_pyramid_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
@@ -21,13 +21,13 @@
 #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 __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FSR2_OPTION_JITTERED_MOTION_VECTORS
+#pragma multi_compile_local __ FFX_FSR2_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"
 
 // 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.
@@ -39,4 +39,4 @@
 #define FFX_SPD_NO_WAVE_OPERATIONS
 //#endif
 
-#include "shaders/ffx_fsr3upscaler_compute_luminance_pyramid_pass.hlsl"
+#include "shaders/ffx_fsr2_compute_luminance_pyramid_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_compute_luminance_pyramid_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 04c3480675e29a340808141e68d4cc8b
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_depth_clip_pass.compute

@@ -0,0 +1,32 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#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
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr2_depth_clip_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_depth_clip_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b207de122e2c4b844b89dcd7c5c77c80
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_lock_pass.compute

@@ -0,0 +1,32 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#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
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr2_lock_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_lock_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 20b7864a7e7258946aaf0f1996febad3
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_rcas_pass.compute

@@ -0,0 +1,31 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#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
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr2_rcas_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_rcas_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 40815651f0f5d994cb73da9816a7ff9b
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+#pragma multi_compile_local __ FFX_FSR2_OPTION_HDR_COLOR_INPUT
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#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
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr2_reconstruct_previous_depth_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_reconstruct_previous_depth_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 5060dfafe45aa67459629186ceb7464e
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_tcr_autogen_pass.compute

@@ -0,0 +1,32 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+#pragma multi_compile_local __ FFX_FSR2_OPTION_LOW_RESOLUTION_MOTION_VECTORS
+#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
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr2_tcr_autogen_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr2_tcr_autogen_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: f8b1c27fb6a544b43b38903592240500
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/FSR3/ffx_fsr3upscaler_accumulate_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_accumulate_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
@@ -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 → Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_autogen_reactive_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
@@ -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"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_debug_view_pass.compute

@@ -0,0 +1,29 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr3upscaler_debug_view_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_debug_view_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: cb24a71d54164c54eb5e86839acd48c5
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_luma_instability_pass.compute

@@ -0,0 +1,29 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr3upscaler_luma_instability_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_reconstruct_previous_depth_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_luma_pyramid_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
@@ -21,13 +21,19 @@
 #pragma kernel CS
 
 #pragma multi_compile_local __ FFX_HALF
-#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 __ 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_reconstruct_previous_depth_pass.hlsl"
+// 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.
+// Uncomment the below lines if you intend to try wave operations on DX12 with the DXC compiler.
+//#if defined(UNITY_COMPILER_DXC) && defined(SHADER_API_D3D12)
+//#pragma require WaveBasic   // Required for WaveGetLaneIndex
+//#pragma require WaveBallot  // Required for WaveReadLaneAt
+//#else
+#define FFX_SPD_NO_WAVE_OPERATIONS
+//#endif
+
+#include "shaders/ffx_fsr3upscaler_luma_pyramid_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_lock_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_prepare_inputs_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
@@ -22,9 +22,10 @@
 
 #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
 
-#include "ffx_fsr3upscaler_unity_common.cginc"
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
 
-#include "shaders/ffx_fsr3upscaler_lock_pass.hlsl"
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr3upscaler_prepare_inputs_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_prepare_reactivity_pass.compute

@@ -0,0 +1,29 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr3upscaler_prepare_reactivity_pass.hlsl"

Assets/Shaders/FSR3/ffx_fsr3upscaler_rcas_pass.compute → Packages/fidelityfx.fsr/Shaders/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"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_shading_change_pass.compute

@@ -0,0 +1,29 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+
+#include "ffx_fsr_unity_common.cginc"
+
+#include "shaders/ffx_fsr3upscaler_shading_change_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_shading_change_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 9a2bff2f97619ed4989d9b0577ba0641
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_shading_change_pyramid_pass.compute

@@ -0,0 +1,32 @@
+// 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 kernel CS
+
+#pragma multi_compile_local __ FFX_HALF
+
+#pragma multi_compile __ UNITY_FSR_TEXTURE2D_X_ARRAY
+
+#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
+
+#include "shaders/ffx_fsr3upscaler_shading_change_pyramid_pass.hlsl"

Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_shading_change_pyramid_pass.compute.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 251e663738905fa4d8817001682d802f
+ComputeShaderImporter:
+  externalObjects: {}
+  preprocessorOverride: 0
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Shaders/FSR3/ffx_fsr3upscaler_tcr_autogen_pass.compute → Packages/fidelityfx.fsr/Shaders/ffx_fsr3upscaler_tcr_autogen_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
@@ -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 → Packages/fidelityfx.fsr/Shaders/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
@@ -21,6 +21,7 @@
 // Suppress a few warnings produced by FFX's HLSL code
 #pragma warning(disable: 3078)      // Loop control variable conflicts
 #pragma warning(disable: 3203)      // Signed/unsigned mismatch
+#pragma warning(disable: 3556)      // Integer divides might be much slower, try using uints if possible
 
 #define FFX_GPU         // Compiling for GPU
 #define FFX_HLSL        // Compile for plain HLSL
@@ -45,38 +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)
-        
+    // 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 → Packages/fidelityfx.fsr/Shaders/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 → Packages/fidelityfx.fsr/Shaders/shaders/ffx_common_types.h

@@ -1,16 +1,17 @@
 // This file is part of the FidelityFX SDK.
-// 
-// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Copyright (C) 2024 Advanced Micro Devices, Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
+// 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
+// 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:
+// 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
@@ -19,7 +20,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-
 #ifndef FFX_COMMON_TYPES_H
 #define FFX_COMMON_TYPES_H
 
@@ -106,7 +106,42 @@ typedef float FfxFloat32x3[3];
 /// @ingroup CPUTypes
 typedef float FfxFloat32x4[4];
 
-/// A typedef for a 2-dimensional 32bit unsigned integer.
+/// A typedef for a 2x2 floating point matrix.
+///
+/// @ingroup CPUTypes
+typedef float FfxFloat32x2x2[4];
+
+/// A typedef for a 3x3 floating point matrix.
+///
+/// @ingroup CPUTypes
+typedef float FfxFloat32x3x3[9];
+
+/// A typedef for a 3x4 floating point matrix.
+///
+/// @ingroup CPUTypes
+typedef float FfxFloat32x3x4[12];
+
+/// A typedef for a 4x4 floating point matrix.
+///
+/// @ingroup CPUTypes
+typedef float FfxFloat32x4x4[16];
+
+/// A typedef for a 2-dimensional 32bit signed integer.
+///
+/// @ingroup CPUTypes
+typedef int32_t FfxInt32x2[2];
+
+/// A typedef for a 3-dimensional 32bit signed integer.
+///
+/// @ingroup CPUTypes
+typedef int32_t FfxInt32x3[3];
+
+/// A typedef for a 4-dimensional 32bit signed integer.
+///
+/// @ingroup CPUTypes
+typedef int32_t FfxInt32x4[4];
+
+/// A typedef for a 2-dimensional 32bit usigned integer.
 ///
 /// @ingroup CPUTypes
 typedef uint32_t FfxUInt32x2[2];
@@ -161,6 +196,7 @@ typedef float32_t4  FfxFloat32x4;
 
 /// A [cacao_placeholder] typedef for matrix type until confirmed.
 typedef float4x4 FfxFloat32x4x4;
+typedef float3x4 FfxFloat32x3x4;
 typedef float3x3 FfxFloat32x3x3;
 typedef float2x2 FfxFloat32x2x2;
 
@@ -218,6 +254,7 @@ typedef int32_t4    FfxInt32x4;
 
 /// A [cacao_placeholder] typedef for matrix type until confirmed.
 #define FfxFloat32x4x4 float4x4
+#define FfxFloat32x3x4 float3x4
 #define FfxFloat32x3x3 float3x3
 #define FfxFloat32x2x2 float2x2
 
@@ -334,6 +371,7 @@ typedef min16int4   FfxInt16x4;
 
 /// A [cacao_placeholder] typedef for matrix type until confirmed.
 #define FfxFloat32x4x4 mat4
+#define FfxFloat32x3x4 mat4x3
 #define FfxFloat32x3x3 mat3
 #define FfxFloat32x2x2 mat2
 

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_common_types.h.meta → Packages/fidelityfx.fsr/Shaders/shaders/ffx_common_types.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 7974b728d5c1b6d4a8a8e3965d03f96d
+guid: ec0f8c94ee9930b438b99b82735d181b
 PluginImporter:
   externalObjects: {}
   serializedVersion: 2
@@ -7,7 +7,7 @@ PluginImporter:
   executionOrder: {}
   defineConstraints: []
   isPreloaded: 0
-  isOverridable: 0
+  isOverridable: 1
   isExplicitlyReferenced: 0
   validateReferences: 1
   platformData:
@@ -23,6 +23,7 @@ PluginImporter:
         Exclude OSXUniversal: 1
         Exclude PS4: 1
         Exclude PS5: 1
+        Exclude WebGL: 1
         Exclude Win: 1
         Exclude Win64: 1
   - first:
@@ -42,12 +43,6 @@ PluginImporter:
       enabled: 0
       settings:
         CPU: None
-  - first:
-      Standalone: OSXUniversal
-    second:
-      enabled: 0
-      settings:
-        CPU: None
   - first:
       Standalone: Win
     second:

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core.h → Packages/fidelityfx.fsr/Shaders/shaders/ffx_core.h

@@ -1,16 +1,17 @@
 // This file is part of the FidelityFX SDK.
-// 
-// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Copyright (C) 2024 Advanced Micro Devices, Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
+// 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
+// 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:
+// 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
@@ -19,7 +20,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-
 /// @defgroup FfxGPU GPU
 /// The FidelityFX SDK GPU References
 /// 

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core.h.meta → Packages/fidelityfx.fsr/Shaders/shaders/ffx_core.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: b91c5f52b89ff554dacb51045a802ed8
+guid: 223ad96bb47790e4d8658dd82ba950f3
 PluginImporter:
   externalObjects: {}
   serializedVersion: 2
@@ -7,7 +7,7 @@ PluginImporter:
   executionOrder: {}
   defineConstraints: []
   isPreloaded: 0
-  isOverridable: 0
+  isOverridable: 1
   isExplicitlyReferenced: 0
   validateReferences: 1
   platformData:
@@ -23,6 +23,7 @@ PluginImporter:
         Exclude OSXUniversal: 1
         Exclude PS4: 1
         Exclude PS5: 1
+        Exclude WebGL: 1
         Exclude Win: 1
         Exclude Win64: 1
   - first:
@@ -42,12 +43,6 @@ PluginImporter:
       enabled: 0
       settings:
         CPU: None
-  - first:
-      Standalone: OSXUniversal
-    second:
-      enabled: 0
-      settings:
-        CPU: None
   - first:
       Standalone: Win
     second:

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_gpu_common.h → Packages/fidelityfx.fsr/Shaders/shaders/ffx_core_gpu_common.h

@@ -1,16 +1,17 @@
 // This file is part of the FidelityFX SDK.
-// 
-// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Copyright (C) 2024 Advanced Micro Devices, Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
+// 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
+// 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:
+// 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
@@ -19,7 +20,6 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 // THE SOFTWARE.
 
-
 /// A define for a true value in a boolean expression.
 ///
 /// @ingroup GPUCore
@@ -49,57 +49,7 @@ FFX_STATIC const FfxFloat32 FFX_FP16_MIN        = 6.10e-05f;
 FFX_STATIC const FfxFloat32 FFX_FP16_MAX        = 65504.0f;
 FFX_STATIC const FfxFloat32 FFX_TONEMAP_EPSILON = 1.0f / FFX_FP16_MAX;
 
-/// Compute the reciprocal of <c><i>value</i></c>.
-///
-/// @param [in] value               The value to compute the reciprocal of.
-///
-/// @returns
-/// The 1 / <c><i>value</i></c>.
-///
-/// @ingroup GPUCore
-FfxFloat32 ffxReciprocal(FfxFloat32 value)
-{
-    return rcp(value);
-}
-
-/// Compute the reciprocal of <c><i>value</i></c>.
-///
-/// @param [in] value               The value to compute the reciprocal of.
-///
-/// @returns
-/// The 1 / <c><i>value</i></c>.
-///
-/// @ingroup GPUCore
-FfxFloat32x2 ffxReciprocal(FfxFloat32x2 value)
-{
-    return rcp(value);
-}
-
-/// Compute the reciprocal of <c><i>value</i></c>.
-///
-/// @param [in] value               The value to compute the reciprocal of.
-///
-/// @returns
-/// The 1 / <c><i>value</i></c>.
-///
-/// @ingroup GPUCore
-FfxFloat32x3 ffxReciprocal(FfxFloat32x3 value)
-{
-    return rcp(value);
-}
-
-/// Compute the reciprocal of <c><i>value</i></c>.
-///
-/// @param [in] value               The value to compute the reciprocal of.
-///
-/// @returns
-/// The 1 / <c><i>value</i></c>.
-///
-/// @ingroup GPUCore
-FfxFloat32x4 ffxReciprocal(FfxFloat32x4 value)
-{
-    return rcp(value);
-}
+#define FFX_HAS_FLAG(v, f) ((v & f) == f)
 
 /// Compute the min of two values.
 ///
@@ -782,7 +732,7 @@ FfxFloat32x4 ffxIsGreaterThanZero(FfxFloat32x4 m)
 /// @ingroup GPUCore
 FfxUInt32 ffxFloatToSortableInteger(FfxUInt32 value)
 {
-    return value ^ ((AShrSU1(value, FfxUInt32(31))) | FfxUInt32(0x80000000));
+    return value ^ ((ffxAShrSU1(value, FfxUInt32(31))) | FfxUInt32(0x80000000));
 }
 
 /// Convert a sortable integer to a 32bit floating point value.
@@ -799,7 +749,7 @@ FfxUInt32 ffxFloatToSortableInteger(FfxUInt32 value)
 /// @ingroup GPUCore
 FfxUInt32 ffxSortableIntegerToFloat(FfxUInt32 value)
 {
-    return value ^ ((~AShrSU1(value, FfxUInt32(31))) | FfxUInt32(0x80000000));
+    return value ^ ((~ffxAShrSU1(value, FfxUInt32(31))) | FfxUInt32(0x80000000));
 }
 
 /// Calculate a low-quality approximation for the square root of a value.
@@ -2408,6 +2358,51 @@ FfxFloat32x3 ffxRec709FromLinear(FfxFloat32x3 color)
     return clamp(j.xxx, color * j.yyy, pow(color, j.zzz) * k.xxx + k.yyy);
 }
 
+/// Compute a linear value from a REC.709 value.
+///
+/// @param [in] color           The value to convert to linear from REC.709.
+///
+/// @returns
+/// A value in linear space.
+///
+/// @ingroup GPUCore
+FfxFloat32 ffxLinearFromRec709(FfxFloat32 color)
+{
+    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
+    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
+    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.x), color * j.y, pow(color * k.x + k.y, j.z));
+}
+
+/// Compute a linear value from a REC.709 value.
+///
+/// @param [in] color           The value to convert to linear from REC.709.
+///
+/// @returns
+/// A value in linear space.
+///
+/// @ingroup GPUCore
+FfxFloat32x2 ffxLinearFromRec709(FfxFloat32x2 color)
+{
+    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
+    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
+    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.xx), color * j.yy, pow(color * k.xx + k.yy, j.zz));
+}
+
+/// Compute a linear value from a REC.709 value.
+///
+/// @param [in] color           The value to convert to linear from REC.709.
+///
+/// @returns
+/// A value in linear space.
+///
+/// @ingroup GPUCore
+FfxFloat32x3 ffxLinearFromRec709(FfxFloat32x3 color)
+{
+    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
+    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
+    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.xxx), color * j.yyy, pow(color * k.xxx + k.yyy, j.zzz));
+}
+
 /// Compute a gamma value from a linear value.
 ///
 /// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
@@ -2462,232 +2457,187 @@ FfxFloat32x3 ffxGammaFromLinear(FfxFloat32x3 value, FfxFloat32 power)
     return pow(value, ffxBroadcast3(power));
 }
 
-/// Compute a PQ value from a linear value.
-///
-/// @param [in] value           The value to convert to PQ from linear.
-///
-/// @returns
-/// A value in linear space.
+/// Compute a linear value from a value in a gamma space.
 ///
-/// @ingroup GPUCore
-FfxFloat32 ffxPQToLinear(FfxFloat32 value)
-{
-    FfxFloat32 p = pow(value, FfxFloat32(0.159302));
-    return pow((FfxFloat32(0.835938) + FfxFloat32(18.8516) * p) / (FfxFloat32(1.0) + FfxFloat32(18.6875) * p), FfxFloat32(78.8438));
-}
-
-/// Compute a PQ value from a linear value.
+/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] value           The value to convert to PQ from linear.
+/// @param [in] color           The value to convert to linear in gamma space.
+/// @param [in] power           The power value used for the gamma curve.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x2 ffxPQToLinear(FfxFloat32x2 value)
+FfxFloat32 ffxLinearFromGamma(FfxFloat32 color, FfxFloat32 power)
 {
-    FfxFloat32x2 p = pow(value, ffxBroadcast2(0.159302));
-    return pow((ffxBroadcast2(0.835938) + ffxBroadcast2(18.8516) * p) / (ffxBroadcast2(1.0) + ffxBroadcast2(18.6875) * p), ffxBroadcast2(78.8438));
+    return pow(color, FfxFloat32(power));
 }
 
-/// Compute a PQ value from a linear value.
-///
-/// @param [in] value           The value to convert to PQ from linear.
-///
-/// @returns
-/// A value in linear space.
+/// Compute a linear value from a value in a gamma space.
 ///
-/// @ingroup GPUCore
-FfxFloat32x3 ffxPQToLinear(FfxFloat32x3 value)
-{
-    FfxFloat32x3 p = pow(value, ffxBroadcast3(0.159302));
-    return pow((ffxBroadcast3(0.835938) + ffxBroadcast3(18.8516) * p) / (ffxBroadcast3(1.0) + ffxBroadcast3(18.6875) * p), ffxBroadcast3(78.8438));
-}
-
-/// Compute a linear value from a SRGB value.
+/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] value           The value to convert to linear from SRGB.
+/// @param [in] color           The value to convert to linear in gamma space.
+/// @param [in] power           The power value used for the gamma curve.
 ///
 /// @returns
-/// A value in SRGB space.
+/// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32 ffxSrgbToLinear(FfxFloat32 value)
+FfxFloat32x2 ffxLinearFromGamma(FfxFloat32x2 color, FfxFloat32 power)
 {
-    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
-    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
-    return clamp(j.x, value * j.y, pow(value, j.z) * k.x + k.y);
+    return pow(color, ffxBroadcast2(power));
 }
 
-/// Compute a linear value from a SRGB value.
-///
-/// @param [in] value           The value to convert to linear from SRGB.
-///
-/// @returns
-/// A value in SRGB space.
+/// Compute a linear value from a value in a gamma space.
 ///
-/// @ingroup GPUCore
-FfxFloat32x2 ffxSrgbToLinear(FfxFloat32x2 value)
-{
-    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
-    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
-    return clamp(j.xx, value * j.yy, pow(value, j.zz) * k.xx + k.yy);
-}
-
-/// Compute a linear value from a SRGB value.
+/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] value           The value to convert to linear from SRGB.
+/// @param [in] color           The value to convert to linear in gamma space.
+/// @param [in] power           The power value used for the gamma curve.
 ///
 /// @returns
-/// A value in SRGB space.
+/// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x3 ffxSrgbToLinear(FfxFloat32x3 value)
+FfxFloat32x3 ffxLinearFromGamma(FfxFloat32x3 color, FfxFloat32 power)
 {
-    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
-    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
-    return clamp(j.xxx, value * j.yyy, pow(value, j.zzz) * k.xxx + k.yyy);
+    return pow(color, ffxBroadcast3(power));
 }
 
-/// Compute a linear value from a REC.709 value.
+/// Compute a PQ value from a linear value.
 ///
-/// @param [in] color           The value to convert to linear from REC.709.
+/// @param [in] value           The value to convert to PQ from linear.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32 ffxLinearFromRec709(FfxFloat32 color)
+FfxFloat32 ffxPQFromLinear(FfxFloat32 value)
 {
-    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
-    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
-    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.x), color * j.y, pow(color * k.x + k.y, j.z));
+    FfxFloat32 p = pow(value, FfxFloat32(0.159302));
+    return pow((FfxFloat32(0.835938) + FfxFloat32(18.8516) * p) / (FfxFloat32(1.0) + FfxFloat32(18.6875) * p), FfxFloat32(78.8438));
 }
 
-/// Compute a linear value from a REC.709 value.
+/// Compute a PQ value from a linear value.
 ///
-/// @param [in] color           The value to convert to linear from REC.709.
+/// @param [in] value           The value to convert to PQ from linear.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x2 ffxLinearFromRec709(FfxFloat32x2 color)
+FfxFloat32x2 ffxPQFromLinear(FfxFloat32x2 value)
 {
-    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
-    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
-    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.xx), color * j.yy, pow(color * k.xx + k.yy, j.zz));
+    FfxFloat32x2 p = pow(value, ffxBroadcast2(0.159302));
+    return pow((ffxBroadcast2(0.835938) + ffxBroadcast2(18.8516) * p) / (ffxBroadcast2(1.0) + ffxBroadcast2(18.6875) * p), ffxBroadcast2(78.8438));
 }
 
-/// Compute a linear value from a REC.709 value.
+/// Compute a PQ value from a linear value.
 ///
-/// @param [in] color           The value to convert to linear from REC.709.
+/// @param [in] value           The value to convert to PQ from linear.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x3 ffxLinearFromRec709(FfxFloat32x3 color)
+FfxFloat32x3 ffxPQFromLinear(FfxFloat32x3 value)
 {
-    FfxFloat32x3 j = FfxFloat32x3(0.081 / 4.5, 1.0 / 4.5, 1.0 / 0.45);
-    FfxFloat32x2 k = FfxFloat32x2(1.0 / 1.099, 0.099 / 1.099);
-    return ffxZeroOneSelect(ffxZeroOneIsSigned(color - j.xxx), color * j.yyy, pow(color * k.xxx + k.yyy, j.zzz));
+    FfxFloat32x3 p = pow(value, ffxBroadcast3(0.159302));
+    return pow((ffxBroadcast3(0.835938) + ffxBroadcast3(18.8516) * p) / (ffxBroadcast3(1.0) + ffxBroadcast3(18.6875) * p), ffxBroadcast3(78.8438));
 }
 
-/// Compute a linear value from a value in a gamma space.
+/// Compute a linear value from a value in a PQ space.
 ///
 /// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] color           The value to convert to linear in gamma space.
-/// @param [in] power           The power value used for the gamma curve.
+/// @param [in] value           The value to convert to linear in PQ space.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32 ffxLinearFromGamma(FfxFloat32 color, FfxFloat32 power)
+FfxFloat32 ffxLinearFromPQ(FfxFloat32 value)
 {
-    return pow(color, FfxFloat32(power));
+    FfxFloat32 p = pow(value, FfxFloat32(0.0126833));
+    return pow(ffxSaturate(p - FfxFloat32(0.835938)) / (FfxFloat32(18.8516) - FfxFloat32(18.6875) * p), FfxFloat32(6.27739));
 }
 
-/// Compute a linear value from a value in a gamma space.
+/// Compute a linear value from a value in a PQ space.
 ///
 /// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] color           The value to convert to linear in gamma space.
-/// @param [in] power           The power value used for the gamma curve.
+/// @param [in] value           The value to convert to linear in PQ space.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x2 ffxLinearFromGamma(FfxFloat32x2 color, FfxFloat32 power)
+FfxFloat32x2 ffxLinearFromPQ(FfxFloat32x2 value)
 {
-    return pow(color, ffxBroadcast2(power));
+    FfxFloat32x2 p = pow(value, ffxBroadcast2(0.0126833));
+    return pow(ffxSaturate(p - ffxBroadcast2(0.835938)) / (ffxBroadcast2(18.8516) - ffxBroadcast2(18.6875) * p), ffxBroadcast2(6.27739));
 }
 
-/// Compute a linear value from a value in a gamma space.
+/// Compute a linear value from a value in a PQ space.
 ///
 /// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
 ///
-/// @param [in] color           The value to convert to linear in gamma space.
-/// @param [in] power           The power value used for the gamma curve.
+/// @param [in] value           The value to convert to linear in PQ space.
 ///
 /// @returns
 /// A value in linear space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x3 ffxLinearFromGamma(FfxFloat32x3 color, FfxFloat32 power)
+FfxFloat32x3 ffxLinearFromPQ(FfxFloat32x3 value)
 {
-    return pow(color, ffxBroadcast3(power));
+    FfxFloat32x3 p = pow(value, ffxBroadcast3(0.0126833));
+    return pow(ffxSaturate(p - ffxBroadcast3(0.835938)) / (ffxBroadcast3(18.8516) - ffxBroadcast3(18.6875) * p), ffxBroadcast3(6.27739));
 }
 
-/// Compute a linear value from a value in a PQ space.
+/// Compute an SRGB value from a linear value.
 ///
-/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
-///
-/// @param [in] value           The value to convert to linear in PQ space.
+/// @param [in] value           The value to convert to SRGB from linear.
 ///
 /// @returns
-/// A value in linear space.
+/// A value in SRGB space.
 ///
 /// @ingroup GPUCore
-FfxFloat32 ffxLinearFromPQ(FfxFloat32 value)
+FfxFloat32 ffxSrgbFromLinear(FfxFloat32 value)
 {
-    FfxFloat32 p = pow(value, FfxFloat32(0.0126833));
-    return pow(ffxSaturate(p - FfxFloat32(0.835938)) / (FfxFloat32(18.8516) - FfxFloat32(18.6875) * p), FfxFloat32(6.27739));
+    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
+    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
+    return clamp(j.x, value * j.y, pow(value, j.z) * k.x + k.y);
 }
 
-/// Compute a linear value from a value in a PQ space.
-///
-/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
+/// Compute an SRGB value from a linear value.
 ///
-/// @param [in] value           The value to convert to linear in PQ space.
+/// @param [in] value           The value to convert to SRGB from linear.
 ///
 /// @returns
-/// A value in linear space.
+/// A value in SRGB space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x2 ffxLinearFromPQ(FfxFloat32x2 value)
+FfxFloat32x2 ffxSrgbFromLinear(FfxFloat32x2 value)
 {
-    FfxFloat32x2 p = pow(value, ffxBroadcast2(0.0126833));
-    return pow(ffxSaturate(p - ffxBroadcast2(0.835938)) / (ffxBroadcast2(18.8516) - ffxBroadcast2(18.6875) * p), ffxBroadcast2(6.27739));
+    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
+    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
+    return clamp(j.xx, value * j.yy, pow(value, j.zz) * k.xx + k.yy);
 }
 
-/// Compute a linear value from a value in a PQ space.
-///
-/// Typically 2.2 for some PC displays, or 2.4-2.5 for CRTs, or 2.2 FreeSync2 native.
+/// Compute an SRGB value from a linear value.
 ///
-/// @param [in] value           The value to convert to linear in PQ space.
+/// @param [in] value           The value to convert to SRGB from linear.
 ///
 /// @returns
-/// A value in linear space.
+/// A value in SRGB space.
 ///
 /// @ingroup GPUCore
-FfxFloat32x3 ffxLinearFromPQ(FfxFloat32x3 value)
+FfxFloat32x3 ffxSrgbFromLinear(FfxFloat32x3 value)
 {
-    FfxFloat32x3 p = pow(value, ffxBroadcast3(0.0126833));
-    return pow(ffxSaturate(p - ffxBroadcast3(0.835938)) / (ffxBroadcast3(18.8516) - ffxBroadcast3(18.6875) * p), ffxBroadcast3(6.27739));
+    FfxFloat32x3 j = FfxFloat32x3(0.0031308 * 12.92, 12.92, 1.0 / 2.4);
+    FfxFloat32x2 k = FfxFloat32x2(1.055, -0.055);
+    return clamp(j.xxx, value * j.yyy, pow(value, j.zzz) * k.xxx + k.yyy);
 }
 
 /// Compute a linear value from a value in a SRGB space.
@@ -2742,11 +2692,13 @@ FfxFloat32x3 ffxLinearFromSrgb(FfxFloat32x3 value)
 }
 
 /// A remapping of 64x1 to 8x8 imposing rotated 2x2 pixel quads in quad linear.
-/// 
-///  543210
-///  ======
-///  ..xxx.
-///  yy...y
+///
+/// Remap illustration:
+///
+///     543210
+///     ~~~~~~
+///     ..xxx.
+///     yy...y
 /// 
 /// @param [in] a       The input 1D coordinates to remap.
 ///
@@ -2756,7 +2708,7 @@ FfxFloat32x3 ffxLinearFromSrgb(FfxFloat32x3 value)
 /// @ingroup GPUCore
 FfxUInt32x2 ffxRemapForQuad(FfxUInt32 a)
 {
-    return FfxUInt32x2(bitfieldExtract(a, 1u, 3u), bitfieldInsertMask(bitfieldExtract(a, 3u, 3u), a, 1u));
+    return FfxUInt32x2(ffxBitfieldExtract(a, 1u, 3u), ffxBitfieldInsertMask(ffxBitfieldExtract(a, 3u, 3u), a, 1u));
 }
 
 /// A helper function performing a remap 64x1 to 8x8 remapping which is necessary for 2D wave reductions.
@@ -2780,5 +2732,5 @@ FfxUInt32x2 ffxRemapForQuad(FfxUInt32 a)
 /// @ingroup GPUCore
 FfxUInt32x2 ffxRemapForWaveReduction(FfxUInt32 a)
 {
-    return FfxUInt32x2(bitfieldInsertMask(bitfieldExtract(a, 2u, 3u), a, 1u), bitfieldInsertMask(bitfieldExtract(a, 3u, 3u), bitfieldExtract(a, 1u, 2u), 2u));
+    return FfxUInt32x2(ffxBitfieldInsertMask(ffxBitfieldExtract(a, 2u, 3u), a, 1u), ffxBitfieldInsertMask(ffxBitfieldExtract(a, 3u, 3u), ffxBitfieldExtract(a, 1u, 2u), 2u));
 }

Assets/Shaders/FSR3/shaders/fsr3upscaler/ffx_core_gpu_common.h.meta → Packages/fidelityfx.fsr/Shaders/shaders/ffx_core_gpu_common.h.meta

@@ -1,5 +1,5 @@
 fileFormatVersion: 2
-guid: 05b921699d1374a429e32afca13137e2
+guid: 4950d6c78609df549a0ed96137bf3bf1
 PluginImporter:
   externalObjects: {}
   serializedVersion: 2
@@ -7,7 +7,7 @@ PluginImporter:
   executionOrder: {}
   defineConstraints: []
   isPreloaded: 0
-  isOverridable: 0
+  isOverridable: 1
   isExplicitlyReferenced: 0
   validateReferences: 1
   platformData:
@@ -23,6 +23,7 @@ PluginImporter:
         Exclude OSXUniversal: 1
         Exclude PS4: 1
         Exclude PS5: 1
+        Exclude WebGL: 1
         Exclude Win: 1
         Exclude Win64: 1
   - first:
@@ -42,12 +43,6 @@ PluginImporter:
       enabled: 0
       settings:
         CPU: None
-  - first:
-      Standalone: OSXUniversal
-    second:
-      enabled: 0
-      settings:
-        CPU: None
   - first:
       Standalone: Win
     second: