Zhann, Well it's all an experiment at this point. might as well try it. Can trees in B5 be disassembled in any way? You might be able to work with that if so. If worst comes to worst you could import a tree created in another app unless this is for the all bryce challenge. I think Virtual Tree has a few neat trees in Renderosity's freestuff you could use to try with the ideas presented about booleans. - TJ