[Haskell] idea's for a 3D modeller in Haskell

Hello, I'm planning to start up a project to build a 3D modelling application in Haskell. I don't know which direction I would want to follow, hence this mail. I've set up a small wiki page @ http://haskell.org/hawiki/H3D. I'm looking for neat idea's, existing projects, articles, suggestions, anything that could help me getting in some direction. Currently, I'm considering using L-systems as a base, and maybe use Ogre3D as rendering engine. Feel free to add anything to the wiki or to reply. boegel