Oh... and Evak, the "Entity System" and related commands are probably the easy thing to port to BMax (since they're probably very renderer-independent). It's the actual DX7 rendering code that would have to be scrapped for a new "B3D module" for BMax. Since Mark's already writing one from scratch, I hope he's taking time to make his renderer code able to work with the tried-and-tested B3D command set, along with whatever else he has in the works. The entity system of B3D is powerful, very well thought-out, very nice to program, and "object oriented" (in a GOOD way - not just "for the sake of being OO") too...