Ok, more stupid questions.
How to avoid theese kind of shadows? (The Pic is adjusted so the shadows is more obvious). I think my settings is very high, but they are still not good for printing. Do fix this in PSD or?
The scene is just lit by GI. IM + LC. Refraktion/reflection enbled…
Re: Shadow with monocrome fields
You mean the separate grey levels of the shadow? I never have seen this, only if I do to much post work.
If you see the levels at the frame buffer, than one reason could be, that you adjust the frame buffer brightness or curve on a 8bit output image. Make sure that clamp output at the color mapping is disabled, so you get the HDRI output.
Other reason could be, that you monitor isn’t right calibrated and dosn’t show smooth gradients. You can test it here:
http://www.aim-dtp.net/aim/evaluation/gamma\_space/index.htm