Yes exactly.

It is probably more suited for programmers, but skilled designers, modellers, ... are also welcome, as they often see things from another perspective than programmers, which can be very usefull.

Lite-C Tut. 1 Lite-C Tut. 2 Lite-C Tut. 3 (en)
Shader Tutorial (ger)

http://www.slindev.com