I think our wires crossed. Will have to accurately check out. Good one!

Sorry I did not grasp you question in the beginning--I am getting a bit worried about the way my brain is working the last few days, Must visit my doctor.Just feeling very old!

I am sure there was a zero edges that did what you want in Carrara 4--but does not seem to be working anywhere near the same in Carrara5. Easily done by taking into photoshop but must be away.

bwtr