*_bump#.dds
About
Corrects DXT compression errors in *_bump.dds
Technical information
Format
- RGB - Error correction for normal map *_bump.dds - Not necessary if you're using good quality normal map. It's generated with SDK
 - A - Height map (Used for parallax normal mapping)
 
Supported texture compression formats
- DXT1
 - ADXT1
 - DXT5
 - 4444 (RGBA4444)
 - 1555 (RGBA1555)
 - 565 (RGB565)
 - RGB
 - RGBA
 - BC7 (DX11)
 - A8
 - L8
 - A8L8
 
Programs
Bump Generator
Blender X-Ray is an addon for the Blender that is designed to import/export 3D models and animations from S.T.A.L.K.E.R. (X-Ray Engine).
IX-Ray SDK
SDK or Software Development Kit helped the developers of the original trilogy and the modders to develop the game itself.