Placing these here for future reference:
http://news.povray.org/povray.general/thread/%3Cweb.4c6830857e94b25d7fd0e21e0%40news.povray.org%3E/?mtop=350012&moff=10
http://wiki.povray.org/content/User:Edouard
https://www.youtube.com/watch?v=flQgnCUxHlw&list=PLRqwX-V7Uu6ZiZxtDDRCi6uhfTH4FilpH&index=37