Quake4 Relief Mapping

and you can quickly get back to your original Quake4 installation by deleting the extracted files. The modified Quake4 shader was created to test relief mapping technique with high-quality game art. Note, however, that some geometry will not look correct with relief mapping as the art for the game was not created for this effect. For correct use of the technique the edges of scene polygons should have no displacement (depth=0). But since the depth maps were created from the game normal maps this is not guaranteed.
This modifcation will not damage your Quake4 installation. It will just extract some textures from the game data pack and modify them to include depth information. All original files are mantained