Originally posted by saturnotaku
Ok, I have his Jan. 29 .plan update in front of me. It sure looks like Carmack has reduced quality code paths at his disposal, but where exactly does he say that he's indeed using them?
Carmack isn't going to spend time programming these multiple paths if the plan is to ship the game without them. This is just again a situation wherein ATi made a very smart design decision by supporting 24fp -- good IQ and good speed. NV30 is either speed, 16fp, or IQ, full 32fp, with the caveat, as Carmack himself has noted, most users won't notice the differences between 24fp and 32fp but they sure will notice the performance difference.