From 2bd868cd1c275b733c081f87d81e8de4537f43f3 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Wed, 9 Nov 2005 20:26:34 +0000
Subject: [PATCH] Added release and flush of OpenGL objects after build of the
 terrain database to prevent the build graphics context state leaking into the
 viewers graphics context set.

---
 examples/osgsimulation/osgsimulation.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/examples/osgsimulation/osgsimulation.cpp b/examples/osgsimulation/osgsimulation.cpp
index 9312b3be4..588026bf8 100644
--- a/examples/osgsimulation/osgsimulation.cpp
+++ b/examples/osgsimulation/osgsimulation.cpp
@@ -96,6 +96,12 @@ osg::Node* createEarth()
         else dataSet->writeDestination();
         
         scene = dataSet->getDestinationRootNode();
+        
+        // now we must get rid of all the old OpenGL objects before we start using the scene graph again 
+        // otherwise it'll end up in an inconsistent state.
+        scene->releaseGLObjects(dataSet->getState());
+        osg::Texture::flushAllDeletedTextureObjects(0);
+        osg::Drawable::flushAllDeletedDisplayLists(0);
     }
         
     return scene.release();