Thank you.I also have one more question,In some source example I find derived class is derived from osg::Drawable::UpdateCallback instead of a NodeCallback or DrawableCallback.Why is it used??
------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=16519#16519 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org

