Reorganized shader code such that standard BiRP and PPV2 can share the same common code with only some light wrappers to implement the differences

Packages/com.unity.postprocessing@3.2.2/PostProcessing/PostProcessResources.asset

@@ -115,7 +115,7 @@ MonoBehaviour:
     multiScaleAO: {fileID: 4800000, guid: 67f9497810829eb4791ec19e95781e51, type: 3}
     screenSpaceReflections: {fileID: 4800000, guid: f997a3dc9254c44459323cced085150c, type: 3}
     sgsr2Upscaler:
-      twoPassFragment: {fileID: 4800000, guid: 9e367486dadedbc4da8313a481aa8a27, type: 3}
+      twoPassFragment: {fileID: 4800000, guid: 59bc1035dd975f64d8141148a7088d0a, type: 3}
   computeShaders:
     autoExposure: {fileID: 7200000, guid: 34845e0ca016b7448842e965db5890a5, type: 3}
     exposureHistogram: {fileID: 7200000, guid: 8c2fcbdf9bc58664f89917f7b9d79501, type: 3}

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_fs/sgsr2_birp.shader

@@ -0,0 +1,49 @@
+Shader "TND/sgsr2_2pass_fs"
+{
+    SubShader
+    {
+        Cull Off ZWrite Off ZTest Always
+
+        Pass
+        {
+            Name "Convert"
+            
+            HLSLPROGRAM
+            #pragma vertex vert_img
+            #pragma fragment frag_convert
+            #pragma target 4.5
+            #pragma enable_d3d11_debug_symbols
+
+            #include "../sgsr2_birp.hlsl"
+            #include "sgsr2_convert.hlsl"
+
+            void frag_convert(v2f_img i, out float4 MotionDepthClipAlphaBuffer: SV_Target)
+            {
+                sgsr2_convert(i.uv, MotionDepthClipAlphaBuffer);
+            }
+            
+            ENDHLSL
+        }
+
+        Pass
+        {
+            Name "Upscale"
+            
+            HLSLPROGRAM
+            #pragma vertex vert_img
+            #pragma fragment frag_upscale
+            #pragma target 4.5
+            #pragma enable_d3d11_debug_symbols
+
+            #include "../sgsr2_birp.hlsl"
+            #include "sgsr2_upscale.hlsl"
+
+            void frag_upscale(v2f_img i, out half4 OutputColor: SV_Target)
+            {
+                sgsr2_upscale(i.uv, OutputColor);
+            }
+            
+            ENDHLSL
+        }
+    }
+}

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_fs/sgsr2_birp.shader.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 4451c8b25af942ccaa8d6d0bb46a8e60
+timeCreated: 1735392260

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_fs/sgsr2_convert.hlsl

@@ -1,4 +1,3 @@
-#include "../sgsr2_birp.hlsl"
 #include "../sgsr2_common.hlsl"
 
 //============================================================================================================
@@ -18,9 +17,8 @@ TYPED_TEXTURE2D_X(half2, _CameraMotionVectorsTexture);
 #define InputDepth      _CameraDepthTexture
 #define InputVelocity   _CameraMotionVectorsTexture
 
-void sgsr2_convert(VaryingsDefault i, out float4 MotionDepthClipAlphaBuffer: SV_Target)
+void sgsr2_convert(const half2 texCoord, out float4 MotionDepthClipAlphaBuffer)
 {
-    const half2 texCoord = i.texcoord;
     uint2 InputPos = uint2(texCoord * renderSize);
     float2 gatherCoord = texCoord - 0.5f * renderSizeRcp;
     

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_fs/sgsr2_ppv2.shader

@@ -4,35 +4,52 @@ Shader "TND/PPV2/sgsr2_2pass_fs"
     {
         Cull Off ZWrite Off ZTest Always
 
-        Pass    // Convert
+        Pass
         {
             Name "Convert"
             
             HLSLPROGRAM
             #pragma vertex VertDefault
-            #pragma fragment sgsr2_convert
+            #pragma fragment FragConvert
             #pragma target 4.5
             #pragma enable_d3d11_debug_symbols
 
             #define UNITY_CG_INCLUDED
             #include "Packages/com.unity.postprocessing/PostProcessing/Shaders/StdLib.hlsl"
+            #undef EPSILON
+            #include "../sgsr2_birp.hlsl"
             #include "sgsr2_convert.hlsl"
+
+            void FragConvert(VaryingsDefault i, out float4 MotionDepthClipAlphaBuffer: SV_Target)
+            {
+                sgsr2_convert(i.texcoord, MotionDepthClipAlphaBuffer);
+            }
+            
             ENDHLSL
         }
 
-        Pass    // Upscale
+        Pass
         {
             Name "Upscale"
             
             HLSLPROGRAM
             #pragma vertex VertDefault
-            #pragma fragment sgsr2_upscale
+            #pragma fragment FragUpscale
             #pragma target 4.5
             #pragma enable_d3d11_debug_symbols
 
             #define UNITY_CG_INCLUDED
             #include "Packages/com.unity.postprocessing/PostProcessing/Shaders/StdLib.hlsl"
+            #undef EPSILON
+            #include "../sgsr2_birp.hlsl"
             #include "sgsr2_upscale.hlsl"
+
+            void FragUpscale(VaryingsDefault i, out half4 OutputColor: SV_Target0, out half4 HistoryOutput: SV_Target1)
+            {
+                sgsr2_upscale(i.texcoord, OutputColor);
+                HistoryOutput = OutputColor;
+            }
+            
             ENDHLSL
         }
     }

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/2_pass_fs/sgsr2_upscale.hlsl

@@ -1,4 +1,3 @@
-#include "../sgsr2_birp.hlsl"
 #include "../sgsr2_common.hlsl"
 
 //============================================================================================================
@@ -21,9 +20,8 @@ SamplerState samplerPrevOutput;
 SamplerState samplerMotionDepthClipAlphaBuffer;
 SamplerState samplerInputColor;
 
-void sgsr2_upscale(VaryingsDefault i, out half4 Output: SV_Target0, out half4 HistoryOutput: SV_Target1)
+void sgsr2_upscale(const half2 texCoord, out half4 Output)
 {
-    const half2 texCoord = i.texcoord;
     half Biasmax_viewportXScale = scaleRatio.x;
     half scalefactor = scaleRatio.y;
 
@@ -262,5 +260,4 @@ void sgsr2_upscale(VaryingsDefault i, out half4 Output: SV_Target0, out half4 Hi
     Upsampledcw.xyz = lerp(HistoryColor, Upsampledcw.xyz, alpha);
 
     Output = half4(Upsampledcw.xyz, 0.0);
-    HistoryOutput = Output;
 }