Thanks. Good to know. I was mainly looking at Carrara as treegenerator. .obj and 3ds would be the main formats I need for import to Cinema4D. The materialgroups seems to be a problem thou. They need to turn up as polygon selections (SelectionTags) in Cinema, so I can re-apply the material again. In the Carrara manual it says procedural materials (for the tree) can be exported as bitmap textures. That would imply some sort of selection are made during export. If anyone knows more of this Id be very happy! Thanks again. Cheers Lennart