Check this out:

Cool Projection Idea:

http://www.youtube.com/watch?v=nhSR_6-Y5Kg




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Now that is just awsome! Tremendous possibilities.

What this would be most impressive for is screen projection calibration for pre-warping. All it would need to do is allign to a few infrared LEDs placed on the edge of the screen and the projectors would auto-calibrate to the screen size By just pointing the projectors in the general direction of the screen.