[Fogbugz # 1377986] Fixing DLSS exception when motion vectors are disabled

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

@@ -39,6 +39,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed objects belonging to preview scenes being marked as dirty during migration (case 1367204).
 - Fixed interpolation issue with wind orientation (case 1379841).
 - Fixed range fields for depth of field (case 1376609).
+- Fixed exception on DLSS when motion vectors are disabled (case # 1377986).
 
 ### Changed
 - Optimizations for the physically based depth of field.

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/RenderPass/DLSSPass.cs

@@ -40,13 +40,13 @@ public static ViewResources GetViewResources(in ViewResourceHandles handles)
         {
             var resources = new ViewResources
             {
-                source = (RenderTexture)handles.source,
-                output = (RenderTexture)handles.output,
-                depth = (RenderTexture)handles.depth,
-                motionVectors = (RenderTexture)handles.motionVectors
+                source = (Texture)handles.source,
+                output = (Texture)handles.output,
+                depth = (Texture)handles.depth,
+                motionVectors = (Texture)handles.motionVectors
             };
 
-            resources.biasColorMask = (handles.biasColorMask.IsValid()) ? (RenderTexture)handles.biasColorMask : (RenderTexture)null;
+            resources.biasColorMask = (handles.biasColorMask.IsValid()) ? (Texture)handles.biasColorMask : (Texture)null;
 
             return resources;
         }
@@ -115,11 +115,11 @@ public struct Parameters
 
         public struct ViewResources
         {
-            public RenderTexture source;
-            public RenderTexture output;
-            public RenderTexture depth;
-            public RenderTexture motionVectors;
-            public RenderTexture biasColorMask;
+            public Texture source;
+            public Texture output;
+            public Texture depth;
+            public Texture motionVectors;
+            public Texture biasColorMask;
         }
 
         public struct CameraResources
@@ -390,11 +390,11 @@ public void UpdateViewState(
             }
 
             public void SubmitDlssCommands(
-                RenderTexture source,
-                RenderTexture depth,
-                RenderTexture motionVectors,
-                RenderTexture biasColorMask,
-                RenderTexture output,
+                Texture source,
+                Texture depth,
+                Texture motionVectors,
+                Texture biasColorMask,
+                Texture output,
                 CommandBuffer cmdBuffer)
             {
                 if (m_DlssContext == null)