Added debug checks for input and output resources, either through direct assignment or through existing global texture bindings.

Assets/Scripts/Fsr2Context.cs

@@ -367,6 +367,30 @@ namespace FidelityFX
 
         private void DebugCheckDispatch(Fsr2.DispatchDescription dispatchParams)
         {
+            // Global texture binding may happen as part of the command list, which is why we check these after running the process at least once
+            if (!_firstExecution)
+            {
+                if (!dispatchParams.Color.HasValue && Shader.GetGlobalTexture(Fsr2Pipeline.SrvInputColor) == null)
+                {
+                    Debug.LogError("Color resource is null");
+                }
+
+                if (!dispatchParams.Depth.HasValue && Shader.GetGlobalTexture(Fsr2Pipeline.SrvInputDepth) == null)
+                {
+                    Debug.LogError("Depth resource is null");
+                }
+
+                if (!dispatchParams.MotionVectors.HasValue && Shader.GetGlobalTexture(Fsr2Pipeline.SrvInputMotionVectors) == null)
+                {
+                    Debug.LogError("MotionVectors resource is null");
+                }
+                
+                if (!dispatchParams.Output.HasValue && Shader.GetGlobalTexture(Fsr2Pipeline.UavUpscaledOutput) == null)
+                {
+                    Debug.LogError("Output resource is null");
+                }
+            }
+
             if (dispatchParams.Exposure.HasValue && (_contextDescription.Flags & Fsr2.InitializationFlags.EnableAutoExposure) != 0)
             {
                 Debug.LogWarning("Exposure resource provided, however auto exposure flag is present");