Per-pixel lighting now checked in

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

I've checked in my changes for per-pixel lighting.  There is a new 
source file, so projects and makefiles must be updated.  I updated the 
Xcode and CodeWarrior XML projects.

The difference between per-pixel lighting and per-vertex lighting is 
particularly noticeable when you use spotlights or nearby point lights. 
  I posted a sample under "Screenshots" in the Quesa area at SourceForge.

You get per-pixel lighting by selecting the OpenGL renderer and setting 
a property on the renderer object.  Geom Test now has a toggle for this. 
  If the OpenGL implementation (i.e., video card or software renderer) 
does not support OpenGL Shading Language, then the OpenGL renderer 
silently reverts to per-vertex lighting.

Per-pixel lighting does not yet support fog.
-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>