Will McGugan:
I don't think it would be pracitcal to render 3D models and blit them
in 2D. Happy to be proven wrong though.
Well, consider games like powermanga. They generated their sprites
using 3-D tools and saved them to disk.
I think Kamilche was suggesting doing it on the fly. If you were just
going to generate images offline, then you probably wouldnt use OpenGL.