As part of my work on a VR port, I have been spending some time looking at the Doom3 BFG edition code for opportunities to improve performance. A core concept in BFG is a vastly different vertex cache, which I've been working on porting to TDM for a while. I believe it is a worthwhile change and will make porting additional improvements from BFG much easier in the future. I finally think my port is ready and would like to merge it, but given the scope of the change, I'm looking for: testers to r