after thinking again of all i read and the hints i get and after a lot of testing i think i have done it.
This one looks a lot smother now and this way it will really work the wa i was searching for..
Ok it is just a testscene i set up for this and it isnt perfect but i found the way i was searching for
I´ll show soon a real setup with rigged models and lights.
Thanks again for all the helpfull hints and suggestions
A happy german ...