hi, thanks you for the replys and @GecT, the tuts are awesome, I will use them..
But now Iīm a little bit further in depth with this problem.
below you see the first pic which is made with maya software which has rendered pretty well, what Iīm looking for!
Perfecto the fractal is a good idea, but how you see I wantet that effekt through real geometry! in that case a tree.
and that light and fog penetrated through the tree gives a nice atmosphere, for what my efforts are!
It were to nice if there wasnīt one problem!
the second image shows the same scene rendered with mental ray and the disturbed render. the tree is converted to a mesh, that MR can read and setting arenīt responsible for that "mistake" !
I tryed out the settings...
What could we do to render that with mental ray, because the final scene includes FG GI SunSKy.
hope I explained everything fine and you can follow my vision for that aniamtion...
It must get finished, I will!!!