Nice idea but it's super glitchy in both Chrome and Firefox and it's also very laggy in FF. Maybe it's my video drivers? (FF13, Chrome 18, Win7/GTX 570)

Pages using bleeding-edge tech like this need an easily accessible fallback. I can't find any way to access the content from that Beercamp page in a non-busted-3d format.

Article's example of correct 'depth-sorting' isn't demonstrating depth sorting, since depth sorting sorts entire elements to the front/back - interpenetration isn't possible. For interpenetration like he demonstrates, you have to split scene elements up into smaller elements or depth-sort at the pixel level (modern 3d cards do something resembling an approximation of this via the z-buffer).