If I want to allow any "alignment" of axis to be mapped to another arbitary set of axis (such as OpenGL's Right-Handed system or DX's LH), I do the calculations in the projection matrix, right? I can handle the math myself, but I just want to make sure I'm putting it in the right spot. Example just in case I'm a bad communicater: Someone is writing a program with (say "forwards" is looking into the screen), eg, the Z axis pointing up, the -X axis pointing "right" and the Y axis pointing forwards. To get this to OpenGL's (Y up, X right, -Z forwards), I could (and would/should) put the necessary rotation in the projection matrix (on creation). Yeah? [Edited by - _goat on April 17, 2006 1:40:10 AM]

So, I'm still confident I could handle the maths myself, but it's looking a lot trickier than I originally thought, and I'm confident that I'd end up doing it, well, sub-par. Does anyone have a good algorithm (psuedocode for sure) for doing this? Calculating the rotations/mirrors should be no problem, it's just finding out what those tranforms should be.

Thanks in advance.