You may also want to search in the forum for discussion threads that address this topic (GetHeightAboveTerrain). It has been discussed many times with solutions.
-Shayne ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=52176#52176 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org