This is a simple straightforward guide to getting a 128MB video card in a system with 1GB of ram to run Doom 3 in Ultra Quality mode without stuttering
A 3 minute tutorial on making a brush with a texture that has transparency - that awesome bright pink colored stuff - and applying it to a map.
This is an updated version to DOOM 3: Performance Tweak Guide (1.0). rsjrv99 has taken into account my comments about it then you will find a clear description for many variables he advices you to change in the config file.
This file contains 7 DivX encoded video tutorials about the editing basics of the Doom Editor.