Im currently reading OpenGL Game Programming by khawk and dave astle and I found something that''s not quite right. The book says there''s a constant called GL_LIGHT_MODEL_COLOR_CONTROL that can be passed to glLightModel to control whether specular color should be calculated separatly from the other light types, but I cant find this constant... It''s not in gl.h, glu.h or glaux.h and that makes me wonder. Are my files out of date or is the book wrong? Thanks P.S. If you have the book, you can check page 183-184. It''s all there.

It was added in OpenGL 1.2, so to use it under Windows, you have to treat it as an extension. You can either define the necessary values yourself (which you can find in the extension spec), or include glext.h.