Hi, My question touches on both Photoshop and Bryce but since so many people use Photoshop anyway, I decided to try my luck here first.

My aim is render Bryce trees, and then move them in my Mojoworld images for post-work. First thought is to simply render against an odd colored backgound and then in Photoshop, extract that color. Well, the problem is that close and around the tree, the background gets fuzzy and it's hard to make a clean job without loosing details on the tree.

I then decided to do 2 renders, one normal, and the other one rendering masking the object... This provides a clean shape in pure black and white.

Now here is my question... What do I do with those 2 pics? I know it got to be some sort of masking operation in Photoshop but I just cant figure it out. I want to have in the end, a clean tree without loss of details against a tranparent background.

Thanks in advance for your help.