Procedural Lightpainting - An absoultely amazing art technique

This is an absolutely fascinating technique called Procedural Lightpainting. It works using a distance sensor, a projector and a camera that captures long exposure shots. The results are absolutely amazing. See how it's done in the video below, and check out some more surreal examples of images created using this technique here.

Procedural Lightpainting from Christopher Warnow on Vimeo.