Hi Chris, I did something similar once, I am not totally sure but I think that the vector should be multiplied before the matrix and that you need to multiply only the direction component without the position. Once you have the direction transformed in camera space to see if it faces the camera you should only need to test if the Z component is > 0 (assuming a right handed reference system).
Good luck, Michele
_______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
