Theres a couple of threads with some scripts and info: http://www.polycount.com/forum/showthread.php?p=1149155#post1149155 http://www.polycount.com/forum/showthread.php?p=1152529#post1152529 Theres also some good stuff on the wiki under 'Environment Foilage' : http://wiki.polycount.com/CategoryEnvironment