GTX is a graphic mod developed for Doom3 and Quake4 that enhance the game experience with new graphic effects never seen before in the game. This is the profile page of GTX for Doom 3.

RSS Files
GTX D3 Beta 1.5 for Doom 3 v1.3 (Win\Mac)

GTX D3 Beta 1.5 for Doom 3 v1.3 (Win\Mac)

Full Version

GTX is a powerful graphic evolution of Doom3. It's developed for run on the standard Doom3 campaign and on custom SP/MP Maps..