Structure Synth is an application for creating 3D structures from a set of user specified rules. It is an attempt to make a 3D version of Context Free.
Gary Stasiuk's beautiful Digital Creatures pulls the curtains on the kinematics of geometric objects, after which he plays with the mathematics and user interactivity of generative art and shows how to build the appearance of AI behaviors into Flash objects.
Worth downloading the plugin. Well, I thought it was funny. And free, easy 3d graphics for the web sounds like a good idea to me. Pwaaak.