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.


git-svn-id: 23b6355f2bb369032457de4eb5f713ee134f73a8@8674 16af8721-9629-0410-8352-f15c8da7e697

joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg,joevandyk/osg