Thanks for the link mercuryus, it shows that the brightness is okay.
I don´t think that I´ll change much on it. It doesn´t have to look very realistic. But I´ll play around some more with dust and smoke.

Thank you WING, I´ll look into that.

Thanks for your comments
I hope to show some more soon.

Slin

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

http://www.slindev.com