The Assembly demo party in Helsinki is one of the largest geek gatherings in the world, where thousands converge to watch and compete in graphic demo competitions. (View the panorama photo from last year’s event, with over 5,000 attendees.)
This year, the winner of the “Browser Demo” category was Mooncheese, written in pure Javascript and DHTML. Several classic real-time demo effects are represented, such as copper bars, tunnels, voxels, Mandelbrot zooms, and various vector effects. In Javascript!
You can view the Mooncheese demo mirrored locally on my server, or download the source locally.
It works well in Firefox 0.9 and Internet Explorer 6, but not Safari. Read the release notes for more information.