Afterthought......... I recently visited Jullian Carr's site. burried away is a tip for creating trees. essentially create a 3d mass (a couple or more),use add solids to create one form, and apply a erroded green texture shader....check it out...Of course your creation of the intial mass is critical to the character of the tree, you could add texture to the "leaves" depending on scale........bottom line does not require a lot of memory......trunks and branches are another matter, vectorworks simply cannot model organic forms, I'm going to try a series of "2d" EXTRUDE TO PATHS, and twist them in 3D....in my spare time, yeah right