DooM3 is not DirectX based. Why do people keep referring to DX when discussing D3?? OpenGL is where it's at boys and girls. Carmack knows that.
In my experience, OpenGL games are less prone to crashing and a lot faster framerate-wise. If you doubt me, just fire up Serious Sam:SE and bench in both OpenGL and DirectX. I think you'll find that OpenGl is anywhere from 5-15% faster.
I just don't get all the hype around DX9... OpenGL can do all the same effects and faster.
Look at all the poor-running games based of DX:
DX is just easier for lazy devs since they don't have to support each GPUs specific extensions.
Last edited by koslov; 07-31-02 at 04:18 PM.