Fixed an usage of a a compute buffer not bound (1229964) (#27)

Co-authored-by: Anis <anis@unity3d.com>

Author: sebastienlagarde

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

@@ -78,6 +78,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fix for issue that prevented scene from being completely saved when baked reflection probes are present and lighting is set to auto generate.
 - Fixed the depth buffer copy made before custom pass after opaque and normal injection point.
 - Fixed a weird behavior in the scalable settings drawing when the space becomes tiny (1212045).
+- Fixed an usage of a a compute buffer not bound (1229964)
 
 ### Changed
 - Renamed the cubemap used for diffuse convolution to a more explicit name for the memory profiler.

com.unity.render-pipelines.high-definition/Runtime/Lighting/LightLoop/LightLoop.cs

@@ -3150,7 +3150,8 @@ void BuildGPULightListsCommon(HDCamera hdCamera, CommandBuffer cmd)
                     // Note we clear the whole content and not just the header since it is fast enough, happens only in one frame and is a bit more robust
                     // to changes to the inner workings of the lists.
                     // Also, we clear all the lists and to be resilient to changes in pipeline.
-                    ClearLightList(hdCamera, cmd, resources.tileAndClusterData.bigTileLightList);
+                    if (hdCamera.frameSettings.IsEnabled(FrameSettingsField.BigTilePrepass))
+                        ClearLightList(hdCamera, cmd, resources.tileAndClusterData.bigTileLightList);
                     ClearLightList(hdCamera, cmd, resources.tileAndClusterData.lightList);
                     ClearLightList(hdCamera, cmd, resources.tileAndClusterData.perVoxelOffset);