Fixed the rt screen space shadows not using the correct asset for allocating the history buffers. (#6613)

Author: anisunity

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

@@ -80,6 +80,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed for APV debug mode breaking rendering when switching to an asset with APV disabled.
 - Fixed potential asymmetrical resource release in the volumetric clouds (case 1388218).
 - Fixed the fade in mode of the clouds not impacting the volumetric clouds shadows (case 1381652).
+- Fixed the rt screen space shadows not using the correct asset for allocating the history buffers.
 
 ### Changed
 - Converted most TGA textures files to TIF to reduce the size of HDRP material samples.

com.unity.render-pipelines.high-definition/Runtime/Lighting/Shadow/HDRenderPipeline.ScreenSpaceShadows.cs

@@ -57,10 +57,10 @@ public partial class HDRenderPipeline
         // This buffer holds the unfiltered, accumulated, shadow values, it is accessed with the same index as the one used at runtime (aka screen space shadow slot)
         static RTHandle ShadowHistoryBufferAllocatorFunction(string viewName, int frameIndex, RTHandleSystem rtHandleSystem)
         {
-            HDRenderPipelineAsset hdPipelineAsset = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
+            HDRenderPipeline hdrp = RenderPipelineManager.currentPipeline as HDRenderPipeline;
+            HDRenderPipelineAsset hdPipelineAsset = hdrp.m_Asset;
             GraphicsFormat graphicsFormat = (GraphicsFormat)hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.screenSpaceShadowBufferFormat;
-            HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
-            int numShadowSlices = Math.Max((int)Math.Ceiling(hdrp.m_Asset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
+            int numShadowSlices = Math.Max((int)Math.Ceiling(hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
             return rtHandleSystem.Alloc(Vector2.one, slices: numShadowSlices * TextureXR.slices, dimension: TextureDimension.Tex2DArray, filterMode: FilterMode.Point, colorFormat: graphicsFormat,
                 enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: string.Format("{0}_ScreenSpaceShadowHistoryBuffer{1}", viewName, frameIndex));
         }
@@ -70,20 +70,20 @@ static RTHandle ShadowHistoryBufferAllocatorFunction(string viewName, int frameI
         // It is accessed with the same index used at runtime (aka screen space shadow slot)
         static RTHandle ShadowHistoryValidityBufferAllocatorFunction(string viewName, int frameIndex, RTHandleSystem rtHandleSystem)
         {
-            HDRenderPipelineAsset hdPipelineAsset = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
-            HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
+            HDRenderPipeline hdrp = RenderPipelineManager.currentPipeline as HDRenderPipeline;
+            HDRenderPipelineAsset hdPipelineAsset = hdrp.m_Asset;
             GraphicsFormat graphicsFormat = (GraphicsFormat)hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.screenSpaceShadowBufferFormat;
-            int numShadowSlices = Math.Max((int)Math.Ceiling(hdrp.m_Asset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
+            int numShadowSlices = Math.Max((int)Math.Ceiling(hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
             return rtHandleSystem.Alloc(Vector2.one, slices: numShadowSlices * TextureXR.slices, dimension: TextureDimension.Tex2DArray, filterMode: FilterMode.Point, colorFormat: graphicsFormat,
                 enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: string.Format("{0}_ShadowHistoryValidityBuffer{1}", viewName, frameIndex));
         }
 
         static RTHandle ShadowHistoryDistanceBufferAllocatorFunction(string viewName, int frameIndex, RTHandleSystem rtHandleSystem)
         {
-            HDRenderPipelineAsset hdPipelineAsset = GraphicsSettings.renderPipelineAsset as HDRenderPipelineAsset;
-            HDRenderPipeline hdrp = (RenderPipelineManager.currentPipeline as HDRenderPipeline);
+            HDRenderPipeline hdrp = RenderPipelineManager.currentPipeline as HDRenderPipeline;
+            HDRenderPipelineAsset hdPipelineAsset = hdrp.m_Asset;
             GraphicsFormat graphicsFormat = (GraphicsFormat)hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.screenSpaceShadowBufferFormat;
-            int numShadowSlices = Math.Max((int)Math.Ceiling(hdrp.m_Asset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
+            int numShadowSlices = Math.Max((int)Math.Ceiling(hdPipelineAsset.currentPlatformRenderPipelineSettings.hdShadowInitParams.maxScreenSpaceShadowSlots / 4.0f), 1);
             return rtHandleSystem.Alloc(Vector2.one, slices: numShadowSlices * TextureXR.slices, dimension: TextureDimension.Tex2DArray, filterMode: FilterMode.Point, colorFormat: graphicsFormat,
                 enableRandomWrite: true, useDynamicScale: true, useMipMap: false, name: string.Format("{0}_ShadowHistoryDistanceBuffer{1}", viewName, frameIndex));
         }