Fixed the fallback sun for volumetric clouds having a non null intensity (case 1353955).

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

@@ -365,6 +365,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed an inconsistency between perf mode and quality mode for material simplification in RTGI (case 1350590).
 - Fixed an issue that clamped the volumetric clouds offset value (case 1357318).
 - Fixed the volumetric clouds having no control over the vertical wind (case 1354920).
+- Fixed the fallback sun for volumetric clouds having a non null intensity (case 1353955).
 
 ### Changed
 - Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard

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

@@ -406,7 +406,7 @@ void UpdateShaderVariableslClouds(ref ShaderVariablesClouds cb, HDCamera hdCamer
                 cb._SunRight = Vector3.right;
                 cb._SunUp = Vector3.forward;
 
-                cb._SunLightColor = Vector3.one;
+                cb._SunLightColor = Vector3.zero;
                 cb._ExposureSunColor = 0;
             }