Animata

Animata is a real-time animation software, designed to create interactive background projections for concerts, theatre and dance performances, and promotional screenings.The peculiarity of the software is that the animation is generated in real-time, making continuous interaction possible. This ability also permits that physical sensors, cameras or other environmental variables can be attached.The software can be connected with many pieces of external software in order to make use of the possibilities of these applications in the fields of image processing, sound analysis, or motion capture. These applications can analyse for instance sound input, or user movement, and this data could drive animations reacting to these environmental changes in real-time.
http://animata.kibu.hu/
http://www.piksel.no/piksel08/p08_workshops.htm
See also: http://createdigitalmotion.com/