I probably should have explained the "fractal trees" comment, I'm guessing. A few years ago they were talking about ways to render complex objects using simple fractal generating thingies. Instead of a comples 3D model, toss in some kind of equation (I'm not up on the details, as you might guess) and let the computer render the lifelike object. Properly done, you'd get the same tree (or whatever) in the same place every time, without having to construct each and every one in the forest.
I'm still waiting for one good tree.
On a tangent, I'm really looking forward to Unity. Near as I can tell, the object textures are dynamically created by the music, or something. No (or few?) hand drawn textures, but a constantly shifting, dynamic effect thingy generated by in-game variables on the fly. I'm guessing the "realism in all things" crowd won't be too excited but I can't wait.
James
