One more. I pretty much maxed out the quality and complexity settings and the resulting OBJ file came in at 90MB. So if you can live with that and if you are not going to have to get the object too close to the camera these trees will do just fine. Real easy to generate. You can create some very irregular trees or bushes (yes!). You have to set the alpha in TG (check 'use alpha channel') as the MTL file is very sparse.
