Ported over jitter UV fixes from Snapdragon GitHub repo

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

@@ -31,8 +31,8 @@ void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)
     float2 InputInfoViewportSize = float2(renderSize);
     float2 Hruv = (float2(gl_GlobalInvocationID.xy) + 0.5f) * HistoryInfoViewportSizeInverse;
     float2 Jitteruv;
-    Jitteruv.x = clamp(Hruv.x + (InputJitter.x * HistoryInfoViewportSizeInverse.x), 0.0, 1.0);
-    Jitteruv.y = clamp(Hruv.y + (InputJitter.y * HistoryInfoViewportSizeInverse.y), 0.0, 1.0);
+    Jitteruv.x = clamp(Hruv.x + (InputJitter.x * renderSizeRcp.x), 0.0, 1.0);
+    Jitteruv.y = clamp(Hruv.y + (InputJitter.y * renderSizeRcp.y), 0.0, 1.0);
 
     int2 InputPos = int2(Jitteruv * InputInfoViewportSize);
     float4 mda = SAMPLE_TEXTURE2D_X_LOD(MotionDepthClipAlphaBuffer, S_LINEAR_CLAMP, Jitteruv, 0).xyzw;

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

@@ -28,8 +28,8 @@ void sgsr2_upscale(const half2 texCoord, out half4 Output)
     float2 Hruv = texCoord;
 
     float2 Jitteruv;
-    Jitteruv.x = clamp(Hruv.x + (jitterOffset.x * displaySizeRcp.x), 0.0, 1.0);
-    Jitteruv.y = clamp(Hruv.y + (jitterOffset.y * displaySizeRcp.y), 0.0, 1.0);
+    Jitteruv.x = clamp(Hruv.x + (jitterOffset.x * renderSizeRcp.x), 0.0, 1.0);
+    Jitteruv.y = clamp(Hruv.y + (jitterOffset.y * renderSizeRcp.y), 0.0, 1.0);
 
     int2 InputPos = int2(Jitteruv * renderSize);
 

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/Upscaling/SGSR2/Shaders/3_pass_cs/sgsr2_upscale.compute

@@ -31,8 +31,8 @@ void CS(uint3 gl_GlobalInvocationID : SV_DispatchThreadID)
     float2 InputInfoViewportSize = float2(renderSize);
     float2 Hruv = (float2(gl_GlobalInvocationID.xy) + 0.5f) * HistoryInfoViewportSizeInverse;
     float2 Jitteruv;
-    Jitteruv.x = clamp(Hruv.x + (InputJitter.x * HistoryInfoViewportSizeInverse.x), 0.0, 1.0);
-    Jitteruv.y = clamp(Hruv.y + (InputJitter.y * HistoryInfoViewportSizeInverse.y), 0.0, 1.0);
+    Jitteruv.x = clamp(Hruv.x + (InputJitter.x * renderSizeRcp.x), 0.0, 1.0);
+    Jitteruv.y = clamp(Hruv.y + (InputJitter.y * renderSizeRcp.y), 0.0, 1.0);
 
     int2 InputPos = int2(Jitteruv * InputInfoViewportSize);