Video Light Painting

This is my take on long-exposure light painting. Participants can use any light source as a "brush," painting a live video onto the screen. I'm particularly interested in these sorts of tools that allow people to create their own artistic work, and not just interact with my pre-programmed content.

I've been testing it using two screens: an iMac for folks to "draw" on, and a projection (with the webcam video feed removed) to show their work to a live audience.