Lots of lights

[James W. <ja...@fr...>]

I've updated the OpenGL renderer to be able to handle more non-ambient 
lights than OpenGL natively supports (which is usually 8), using 
multiple passes.  Naturally, this requires that you write a real 
rendering loop, checking the result of Q3View_EndRendering, as has 
always been recommended.
-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>