@ernyoka1:**
WOW! **
you are so fast!
great work, I thank you a lot.
now I can make my imagine real.
as an absolute poser beginner - greenest greenhorn ever I think -  it will take a long time, I fear.
but it will be.

I never heard about Ajax's slime shader, but I will instantly look for it in the freestuff.

thank you again!

holger