visual art

"The visuals start with the camera analysis - without motion there are no visuals. 6 cameras are fed into an 8-core Mac Pro and are all analysed in parallel with an optical flow motion estimation, the analysis for each camera feed running in its own thread. Once the camera analysis is complete for all cameras, the velocity vectors are stitched together and fed into a fluid simulation. Any movement the user makes, causes 'colored dye' to be injected into the fluid simulation, with the speed and direction of the movement being inherited by the dye. These movements also create 'currents' in the fluid, allowing the user to create swirls and vortices with circular movements (e.g. waving arms around), or just send waves of coloured plasma rippling across the room with a simple push of the body. These currents also allow the user to control particles as described below."


Glastonbury 2008 - Pi Interactive Installation from evan on Vimeo.