To elminate the headache of trying to billboard a quad, could one possibly use gluLookAt in reverse?
as in
gluLookAt (Objectx,Objecty,Objectz,camX,camY,camZ); //for placing the objects to be billboarded
and then the actual camera placement being done w/
gluLookAt(camX,camY,camZ,focusX,focusY,focusZ);
in theory i think this would work, but I really don’t know if there is something I’m missing (i’ve been trying various methods of billboarding and haven’t been satisfied with many of the tutorials.
thanks,
Kent