From 0548c6380083f0277d055c4d6e8f64e7db34ba14 Mon Sep 17 00:00:00 2001
From: Nico de Poel <ndepoel@gmail.com>
Date: Thu, 9 Mar 2023 10:47:37 +0100
Subject: [PATCH] Revert "Reintroduced the ability for FSR2 to output to a
 render texture again. Very basic for now."

This reverts commit bb24ed970bdca99e0da434541fca6ca85884062a.
---
 Assets/Scripts/Fsr2Controller.cs | 29 +++++++++++++----------------
 1 file changed, 13 insertions(+), 16 deletions(-)

diff --git a/Assets/Scripts/Fsr2Controller.cs b/Assets/Scripts/Fsr2Controller.cs
index b5c69aa..a5f4955 100644
--- a/Assets/Scripts/Fsr2Controller.cs
+++ b/Assets/Scripts/Fsr2Controller.cs
@@ -248,6 +248,14 @@ namespace FidelityFX
             _renderCamera.rect = _originalRect;
             _renderCamera.ResetProjectionMatrix();
 
+            if (dest != null)
+            {
+                Debug.LogError("FSR2 is not set to output directly to the backbuffer! Please ensure that FSR2 is the final pass in the image effects chain.");
+                Graphics.Blit(src, dest);
+                enabled = false;
+                return;
+            }
+
             _dispatchCommandBuffer.Clear();
             
             // Update the input resource descriptions
@@ -262,25 +270,14 @@ namespace FidelityFX
                 _dispatchDescription.Reactive = Fsr2Pipeline.UavAutoReactive;
             }
 
-            if (dest == null)
-            {
-                // We are rendering to the backbuffer, so we need a temporary render texture for FSR2 to output to
-                _dispatchCommandBuffer.GetTemporaryRT(Fsr2Pipeline.UavUpscaledOutput, _displaySize.x, _displaySize.y, 0, default, DefaultFormat, default, 1, true);
-            }
-            else
-            {
-                // We have more image effects lined up after this, so FSR2 can output straight to the intermediate render texture
-                _dispatchCommandBuffer.SetGlobalTexture(Fsr2Pipeline.UavUpscaledOutput, dest, RenderTextureSubElement.Color);
-            }
+            // We are rendering to the backbuffer, so we need a temporary render texture for FSR2 to output to
+            _dispatchCommandBuffer.GetTemporaryRT(Fsr2Pipeline.UavUpscaledOutput, _displaySize.x, _displaySize.y, 0, default, DefaultFormat, default, 1, true);
 
             _context.Dispatch(_dispatchDescription, _dispatchCommandBuffer);
 
-            if (dest == null)
-            {
-                // Output the upscaled image to the backbuffer
-                _dispatchCommandBuffer.Blit(Fsr2Pipeline.UavUpscaledOutput, dest);
-                _dispatchCommandBuffer.ReleaseTemporaryRT(Fsr2Pipeline.UavUpscaledOutput);
-            }
+            // Output the upscaled image to the backbuffer
+            _dispatchCommandBuffer.Blit(Fsr2Pipeline.UavUpscaledOutput, dest);
+            _dispatchCommandBuffer.ReleaseTemporaryRT(Fsr2Pipeline.UavUpscaledOutput);
 
             if (autoGenerateReactiveMask)
             {