[This page has been moved to http://bitsynthesis.com/2009/04/pd-video-feedback-patch-sketch/. Please update links to the new address.]
Here's a short demo of a patch I'm working on using Pure Data and Gem. It responds to audio, so I plugged in this track by Josh Harding and let it run.
I hope to upload more examples of my PD work soon. I've got a trial version of a screen capture software, so I've got a month to do as much capturing as possible.