Fixed potential asymmetrical resource release in the volumetric clouds (case 1388218). #6600

Author: anisunity

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

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed rendering in the editor when an incompatible API is added (case 1384634).
 - Fixed the fade in mode of the clouds not impacting the volumetric clouds shadows (case 1381652).
 - Fixed issue with typed loads on RGBA16F in Volumetric Lighting Filtering.
+- Fixed potential asymmetrical resource release in the volumetric clouds (case 1388218).
 
 ## [13.1.4] - 2021-12-04
 

com.unity.render-pipelines.high-definition/Runtime/Lighting/VolumetricLighting/HDRenderPipeline.VolumetricClouds.cs

@@ -32,6 +32,7 @@ public partial class HDRenderPipeline
         int m_CombineCloudsKernelColorCopy;
         int m_CombineCloudsKernelColorRW;
         int m_CombineCloudsSkyKernel;
+        bool m_ActiveVolumetricClouds;
 
         // Combine pass via hardware blending, used in case of MSAA color target.
         Material m_CloudCombinePass;
@@ -53,7 +54,9 @@ struct VolumetricCloudsCameraData
 
         void InitializeVolumetricClouds()
         {
-            if (!m_Asset.currentPlatformRenderPipelineSettings.supportVolumetricClouds)
+            // Keep track of the state for the release
+            m_ActiveVolumetricClouds = m_Asset.currentPlatformRenderPipelineSettings.supportVolumetricClouds;
+            if (!m_ActiveVolumetricClouds)
                 return;
 
             // Allocate the buffers for ambient probe evaluation
@@ -92,7 +95,7 @@ void InitializeVolumetricClouds()
 
         void ReleaseVolumetricClouds()
         {
-            if (!m_Asset.currentPlatformRenderPipelineSettings.supportVolumetricClouds)
+            if (!m_ActiveVolumetricClouds)
                 return;
 
             // Destroy the material