Added releaseAllGLObjects() convinience method.

src/osgUtil/GLObjectsVisitor.cpp

@@ -12,6 +12,7 @@
 */
 #include <osgUtil/GLObjectsVisitor>
 #include <osg/Drawable>
+#include <osg/Notify>
 
 using namespace osg;
 using namespace osgUtil;
@@ -88,6 +89,7 @@ void GLObjectsVisitor::apply(osg::StateSet& stateset)
     }
     if (_mode&RELEASE_STATE_ATTRIBUTES)
     {
+        osg::notify(osg::NOTICE)<<"GLObjectsVisitor::apply"<<std::endl;
         stateset.releaseGLObjects(_state.get());
     }
 }

src/osgUtil/SceneView.cpp

@@ -614,6 +614,16 @@ void SceneView::cullStage(const osg::Matrixd& projection,const osg::Matrixd& mod
     rendergraph->prune();
 }
 
+void SceneView::releaseAllGLObjects()
+{
+    if (!_sceneData) return;
+   
+    GLObjectsVisitor globjv(GLObjectsVisitor::RELEASE_DISPLAY_LISTS|GLObjectsVisitor::RELEASE_STATE_ATTRIBUTES);
+    globjv.setNodeMaskOverride(0xffffffff);
+    globjv.setState(_state.get());
+    _sceneData->accept(globjv);
+}
+
 
 void SceneView::flushAllDeletedGLObjects()
 {