Several people have asked how I rendered the Million Structures animation.
That much geometry would take forever to render or simply crash an average computer. The trick is only one row of playgrounds is real.
There are planes with a 99% reflective material along both sides of it. I set the ray tracer to bounce 10 times.
Part way through the animation the camera switches from hovering over real geometry to panning across a pre-rendered image.

These are some of the Flash headers I made for Burke's new website.

NaturePlay
Quickship
Geosculpt
Starnet