If you have 3ds Max, TreeMaker is a free add-on. I've used it, does a decent job. http://www.scriptspot.com/3ds-max/scripts/tree-maker If you're a Blender user, The Grove looks pretty good, and 109EU isn't bad. I haven't used it but it looks decent. https://www.thegrove3d.com/buy/ XFrog is a standalone Windows tool,…