começo

http://www.skribblerz.com/tuts/ngle/ngle2/checkpointstutorial.htm
http://homepage.mac.com/uvavoo/mydownloads.html

http://www.trlevel.de/index.php?page=LexiconItem&id=139
http://www.angelfire.com/mi4/laras_wardrobe/meshes1.html

http://trlibrary.tripod.com/id49.htm