Fixed opaque-only copy buffer not keeping dynamic resolution scaling in mind.

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/Effects/SuperResolution.cs

@@ -323,7 +323,7 @@ namespace UnityEngine.Rendering.PostProcessing
             _genReactiveDescription.Flags = generateReactiveParameters.flags;
         }
 
-        private Vector2Int GetScaledRenderSize(Camera camera)
+        internal Vector2Int GetScaledRenderSize(Camera camera)
         {
             if (!RuntimeUtilities.IsDynamicResolutionEnabled(camera))
                 return _maxRenderSize;

Packages/com.unity.postprocessing@3.2.2/PostProcessing/Runtime/PostProcessLayer.cs

@@ -741,7 +741,8 @@ namespace UnityEngine.Rendering.PostProcessing
             // Create a copy of the opaque-only color buffer for auto-reactive mask generation
             if (context.IsSuperResolutionActive() && (superResolution.autoGenerateReactiveMask || superResolution.autoGenerateTransparencyAndComposition))
             {
-                m_opaqueOnly = context.GetScreenSpaceTemporaryRT(colorFormat: sourceFormat);
+                Vector2Int scaledRenderSize = superResolution.GetScaledRenderSize(context.camera);
+                m_opaqueOnly = context.GetScreenSpaceTemporaryRT(colorFormat: sourceFormat, widthOverride: scaledRenderSize.x, heightOverride: scaledRenderSize.y);
                 m_LegacyCmdBufferOpaque.BuiltinBlit(cameraTarget, m_opaqueOnly);
             }