Hi everyone,
after i ran into walls trying to get the grasp of the maxsdk with my limited c knowledge, i just had to do something encouraging to get back on track.
Hence i created a plugin implementation of the Preetham Paper (the same Paper that was the base for VRay's sky and maxwell's sky etc) for nuke.
It aint optimised at all, but it does indeed work like a charm 
http://nuke.instinct-vfx.de/images/sky.jpg
click thumb for larger image...
feel free to check out my nuke blog at :
http://nuke.instinct-vfx.de/
I need to completely rewrite it now that the conceptual version works....but it