Bursted ShadowRequest updates (#94)

* Bursted shadow requests

* Some fixup

* Bursted index generation and shadow manager updates.

* Normalization step and job combining

* Bug fixing and some improvements

* Some cleanup

* More cleanup

* Fixed profiler marker issue

* Fixed light registration bug, more cleanup

* Added initialization checks to HDCachedShadowAtlas.

* Removed log warnings

* Wrapped HDAdditionalLightData pointer properties in UnsafeLists

Author: AdamStrickUnity

com.unity.render-pipelines.high-definition/Runtime/Lighting/Light/HDAdditionalLightData.Types.cs

@@ -211,6 +211,18 @@ internal enum PointLightHDType
         [SerializeField, FormerlySerializedAs("lightTypeExtent"), FormerlySerializedAs("m_LightTypeExtent")]
         PointLightHDType m_PointlightHDType = PointLightHDType.Punctual;
 
+        internal PointLightHDType pointLightHDType
+        {
+            get => m_PointlightHDType;
+            set
+            {
+                if (lightEntity.valid)
+                {
+                    HDLightRenderDatabase.instance.GetShadowRequestUpdateInfoAsRef(lightEntity).pointLightHDType = m_PointlightHDType;
+                }
+            }
+        }
+
         // Only for Spotlight, should be hide for other light
         [SerializeField, FormerlySerializedAs("spotLightShape")]
         SpotLightShape m_SpotLightShape = SpotLightShape.Cone;
@@ -297,6 +309,8 @@ public SpotLightShape spotLightShape
                 if (!supportedUnits.Any(u => u == lightUnit))
                     lightUnit = supportedUnits.First();
                 UpdateAllLightValues();
+
+                HDLightRenderDatabase.instance.GetShadowRequestUpdateInfoAsRef(lightEntity).spotLightShape = m_SpotLightShape;
             }
         }
 
@@ -317,6 +331,8 @@ public AreaLightShape areaLightShape
                 if (type == HDLightType.Area)
                     ResolveAreaShape();
                 UpdateAllLightValues();
+
+                HDLightRenderDatabase.instance.GetShadowRequestUpdateInfoAsRef(lightEntity).areaLightShape = m_AreaLightShape;
             }
         }