'hrendz' and 'vrendz' variant functions now C
 - inline assembly varients removed
 - C varients uncommented
 - opti4asm no longer needed, all instances of it (voxlap5 and v5) removed
 - opticast now no longer has any clearMMX calls

Induced Bugs (in game.exe):
 - Rendering is noticably lower framerate, especially animaions (or maybe they are just more noticable)
 - player is much faster
mat2 now C (from 3D Now! version)
C alternative for 'genmipvxl' in use
tested--no obvious errors
First C alternative for 'drawtile' in use
setblobs now C (from 3D Now! version)