HDRenderLoop: Fix issue wih debug param after refactor

Assets/ScriptableRenderLoop/HDRenderLoop/Debug/DebugViewMaterial.cs

             VertexNormalWS,
             VertexColor,
             VertexColorAlpha,
+            // caution if you add something here, it must start below
         };
 
         // Number must be contiguous
-            Depth = DebugViewVarying.VertexColor + 1,
+            Depth = DebugViewVarying.VertexColorAlpha + 1,
             BakeDiffuseLighting,
         }
     }

Assets/ScriptableRenderLoop/HDRenderLoop/Debug/DebugViewMaterial.cs.hlsl

 //
 // UnityEngine.Experimental.ScriptableRenderLoop.Attributes.DebugViewGbuffer:  static fields
 //
-#define DEBUGVIEWGBUFFER_DEPTH (9)
-#define DEBUGVIEWGBUFFER_BAKE_DIFFUSE_LIGHTING (10)
+#define DEBUGVIEWGBUFFER_DEPTH (10)
+#define DEBUGVIEWGBUFFER_BAKE_DIFFUSE_LIGHTING (11)
 
 
 #endif

Assets/ScriptableRenderLoop/HDRenderLoop/HDRenderLoop.cs

                 Shader.SetGlobalInt("_EnvLightSkyEnabled", 0);
             }
 
+            var invViewProj = Utilities.GetViewProjectionMatrix(camera).inverse;
+            var screenSize = Utilities.ComputeScreenSize(camera);
+
+            var cmd = new CommandBuffer { name = "Push Global Parameters" };
+
+            cmd.SetGlobalVector("_ScreenSize", screenSize);
+            cmd.SetGlobalMatrix("_InvViewProjMatrix", invViewProj);
+
+            renderLoop.ExecuteCommandBuffer(cmd);
+            cmd.Dispose();
+
             m_lightLoop.PushGlobalParams(camera, renderLoop);
         }