Pretty pictures are great! For those of you who want to learn a bit more about what is going on behind the scenes, you might want to research L-Systems. See htt

Pretty pictures are great! For those of you who want to learn a bit more about what is going on behind the scenes, you might want to research L-Systems. See http://en.wikipedia.org/wiki/L-system http://en.wikipedia.org/wiki/L-system The authors who brings it home the best are Przemyslaw Prusinkiewicz and Aristid Lindenmayer (notice last name of second author ;-)) Lots of L-System software out there as well...