Added a getCurrentRenderStage() and getCurrentCamera() convninience methods, and converted the CullVisitor::apply(OcclusionQueryNode&) implementation to use the new getCurrentCamera method.
Added a getCurrentRenderStage() and getCurrentCamera() convninience methods, and
converted the CullVisitor::apply(OcclusionQueryNode&) implementation to use the
new getCurrentCamera method.


koshman86/osg,koshman86/osg,omega-hub/osg,XiaoCC/osg,omega-hub/osg,koshman86/osg,omega-hub/osg,stmh/osg,XiaoCC/osg,stmh/osg,ntoand/osg,XiaoCC/osg,artoolkit/osg,ntoand/osg,stmh/osg,ghub/osg,koshman86/osg,omega-hub/osg,ghub/osg,ghub/osg,artoolkit/osg,stmh/osg,ghub/osg,XiaoCC/osg,XiaoCC/osg,ntoand/osg,artoolkit/osg,stmh/osg,artoolkit/osg,ntoand/osg