From 07e5480b576b7fe193ac338ad0850ad946ab1540 Mon Sep 17 00:00:00 2001
From: Julien Valentin <julienvalentin51@gmail.Com>
Date: Wed, 19 Dec 2018 18:30:26 +0100
Subject: [PATCH] setup camera Read/Draw Buffer

fix flickering shadows in SingleThread
---
 src/osgShadow/ParallelSplitShadowMap.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/osgShadow/ParallelSplitShadowMap.cpp b/src/osgShadow/ParallelSplitShadowMap.cpp
index 6a2bf999c..e627d8fee 100644
--- a/src/osgShadow/ParallelSplitShadowMap.cpp
+++ b/src/osgShadow/ParallelSplitShadowMap.cpp
@@ -357,6 +357,8 @@ void ParallelSplitShadowMap::init()
         {
             // create the camera
             pssmShadowSplitTexture._camera = new osg::Camera;
+            pssmShadowSplitTexture._camera->setReadBuffer(GL_BACK);
+            pssmShadowSplitTexture._camera->setDrawBuffer(GL_BACK);
             pssmShadowSplitTexture._camera->setCullCallback(new CameraCullCallback(this));