Texture Question: Bump Mapping

Rizz

L5: Dapper Member
Dec 18, 2009
210
21
Hi guys, I downloaded this Quake texture pack from here and almost all of the textures were blue like this:
http://g.imagehost.org/download/0909/muh_bad_norm

Is this suppose to be a form of bump mapping, why were all the textures blue and some gray scale?
It's suppose to look like this:
muh_bad.jpg
 

Acumen

Annoyer
aa
Jun 11, 2009
704
628
it's the according normal map to this diffuse texture.