iD tech 4 is still closed source. They usually open them up when the next engine is out, but tech 5 looks so revolutionary it'll be a while before carmack and co get it done. You should see it, the level editor can do all the usual, plus painting and combinging textures like a 3D photoshop. They've completely altered the concept of textures and materials. What they want to do for tech 6? geometry. Goodbye 3ds max, this time next decade, anyway.
I figure quake IV and the other tech4 games would be doable on MOS when the powermac support is done. Assuming, that is they make drivers for the more beefy graphics boards.
