From 4d7e9bae73c29e4c1e594c50da94995de1ac69f2 Mon Sep 17 00:00:00 2001
From: Cody Glassman <glassmancody.info@gmail.com>
Date: Thu, 4 Jul 2024 21:07:40 -0700
Subject: [PATCH] ensure distortion is only rendered once

---
 apps/openmw/mwrender/distortion.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/apps/openmw/mwrender/distortion.cpp b/apps/openmw/mwrender/distortion.cpp
index 2ca2ace65b..ed90944245 100644
--- a/apps/openmw/mwrender/distortion.cpp
+++ b/apps/openmw/mwrender/distortion.cpp
@@ -2,6 +2,8 @@
 
 #include <osg/FrameBufferObject>
 
+#include "postprocessor.hpp"
+
 namespace MWRender
 {
     void DistortionCallback::drawImplementation(
@@ -10,6 +12,11 @@ namespace MWRender
         osg::State* state = renderInfo.getState();
         size_t frameId = state->getFrameStamp()->getFrameNumber() % 2;
 
+        PostProcessor* postProcessor = dynamic_cast<PostProcessor*>(renderInfo.getCurrentCamera()->getUserData());
+
+        if (!postProcessor || bin->getStage()->getFrameBufferObject() != postProcessor->getPrimaryFbo(frameId))
+            return;
+
         mFBO[frameId]->apply(*state);
 
         const osg::Texture* tex