About the textures/colors: I forgot the line
#include "woods.inc"
And turning off light 4 improves the edges. And then there isn't so much
difference anymore between 3.5 and 3.6.
Though i have the shadow of then pen then, as in your images.
I'm not happy. But I will find a workaround if necessary.
Thanks all for your help!
Greetings
Dieter
