Many thanks Frederic, I now see the point you're making. Still not sure exactly what pixelSize() returns - I may do some simple experiments without the billboard, maybe with just a simple sphere and see if the pixelSize() then correlates with screen pixel measurements - unfortunately I can't do any coding from home at the moment though.
Paul ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=30611#30611 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
