Quote:

it only works if the resolution is 1024*768, if I try any other (800*600,640*480) some glitchs appears...



Hey, thanks for this hint, I forgot about such a problem...
I´m just working on a fix

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

http://www.slindev.com