Herr Lindenmayer, ja ja, sicher !
Not optimized (it uses Display Lists and not VertexArrays), still fun.
A great opportunity to practice your german.
Check http://en.wikipedia.org/wiki/L-system for detailed explanations.
This will also reveal that the guy was actually Hungarian.
My bad. Magyar túl nehéz.
Still not working inside an iterator although I tried the @synthesize method.
Ivars is something I don’t quite get. And I hate cocoa.
But I like chocolate++.
Next step ? Replace the point with textured PointSprite.