Check out this video:
Basically copy the output from a camera to three projectors, and point the camera back to the screen. It generates all sorts of amazing fractals.
Shouldn't it be possible to do this in Resolume? Create three instances of a video camera generator, put them on the canvas, and stick a feedback in there?
I've tried, and haven't gotten too far - I'm probably misinterpreting how the feedback generator works.