http://www.youtube.com/watch?v=_3RDwJwtK4k
This is a demo of a coffee table music controller made with Reactivision. Details below.
via ingiacapoeira:
reactivision and puredata, im tracking a marker stuck under the mug with a webcam placed under the table… from where im sitting, up/down is sample pitch, left right switches between samples and the mug angle = retrigger X2 (clockwise) or X4 (ant-clockwise). get the pd patch at my homepage cheapthrills.toile-libre.org
There have been alot of videos like this. My favorite are the cat synthesizer videos.