Actually ATI took that video and rendered it realtime when dx9 was just starting to surface. You can download the demo off their website (http://www.ati.com/developer/demos/r9700.html) and see it happen in realtime while you move the camera around to any angle you want. The video itself is from a DVD collection of short musical animations but that is by far the most interesting of the set.
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http://video.google.com/videoplay?docid=-8694244338798619086
'cept for the asploding, of course.
/Obscure?