IQM is optimized..........
.......for hardware vertex buffers, and not for the struggling cache of the P6 architecture
likewise for OA3, MD5, SMD and PSK are out of the question. especially MD5.... the most suggested format without insight put through on why
For me, it's not very fun retreading on model format politics. Different formats don't automatically turn a model great, it's how they are used that matters, and my choice for MDR is purely for efficiency reasons. It exists, I can export to it, and it's been proven to work in a (rather excellent) shipped title from 14 years back. My treatment has been mostly PS2/GCN-level assets rather than the 400-900 poly borgs and hazard teams and 7of9s and it seems to work very well for my purpose.
now if I could just have LODs imported somehow.... my lod plans are extreme on the contrary. I want to go even lower than Q1 for them.