I have a question about multi-texturing and texture unit 0.
Is GL_MODULATE equivalent to GL_REPLACE, but only for texture unit 0?
So, it does not matter if I use any of these lines, as they both give
me the same results for texture unit 0?
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
Do you enable lighting in your case?
I just thought lighting can be a factor which might make the GL_MODULATE and GL_REPLACE different.
Yes, I have lighting enabled.
Now that I think about it, my material color is all white, so perhaps it would seem
that both modulating and replacing look the same.
It will probably look different if I change the color of my material.