Fixed an issue in the planar reflection probe convolution.

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -70,6 +70,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed issue with automatic exposure settings not updating scene view.
 - Fixed issue with velocity rejection in post-DoF TAA. Fixing this reduces ghosting (case 1304381).
 - Fixed missing option to use POM on emissive for tessellated shaders.
+- Fixed an issue in the planar reflection probe convolution.
 
 ### Changed
 - Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard

com.unity.render-pipelines.high-definition/Runtime/Lighting/PlanarReflectionFiltering.compute

@@ -148,8 +148,8 @@ void DownScale(uint3 dispatchThreadId : SV_DispatchThreadID, uint2 groupThreadId
         {
             const int2 tapCoord = currentCoord * 2 + uint2(x, y);
             // If the pixel is outside the current screen size, its weight becomes zero
-            float weight =  tapCoord.x > _CaptureCurrentScreenSize.x ||  tapCoord.x < 0
-                            || tapCoord.y > _CaptureCurrentScreenSize.y ||  tapCoord.y < 0 ? 0.0 : 1.0;
+            float weight =  tapCoord.x >= _CaptureCurrentScreenSize.x ||  tapCoord.x < 0
+                            || tapCoord.y >= _CaptureCurrentScreenSize.y ||  tapCoord.y < 0 ? 0.0 : 1.0;
             averageColor += LOAD_TEXTURE2D_LOD(_ReflectionColorMipChain, tapCoord, _SourceMipIndex).xyz * weight;
             sumW += weight;
         }