I do think we want to use the jittered projection matrix for transparent rendering. Otherwise the reactive mask's inputs do not match.

Assets/Scripts/Fsr2Controller.cs

@@ -188,7 +188,7 @@ namespace FidelityFX
             _dispatchDescription.Reset = _reset;
             _reset = false;
 
-            // Perform custom jittering of the camera's projection matrix according to FSR2's documentation
+            // Perform custom jittering of the camera's projection matrix according to FSR2's recipe
             int jitterPhaseCount = Fsr2.GetJitterPhaseCount(_renderSize.x, _displaySize.x);
             Fsr2.GetJitterOffset(out float jitterX, out float jitterY, Time.frameCount, jitterPhaseCount);
 
@@ -200,7 +200,7 @@ namespace FidelityFX
             var jitterTranslationMatrix = Matrix4x4.Translate(new Vector3(jitterX, jitterY, 0));
             _renderCamera.nonJitteredProjectionMatrix = _renderCamera.projectionMatrix;
             _renderCamera.projectionMatrix = jitterTranslationMatrix * _renderCamera.nonJitteredProjectionMatrix;
-            _renderCamera.useJitteredProjectionMatrixForTransparentRendering = false;
+            _renderCamera.useJitteredProjectionMatrixForTransparentRendering = true;
         }
         
         private void OnRenderImage(RenderTexture src, RenderTexture dest)