Google's Project Tango, which enables users to manipulate objects i a 3D virtual space using sensors and a motion-tracking camera, has already been used to do cool things. NASA has worked to incorporate Tango into autonomous, space-aware robots. Limbic has integrated it with its popular Zombie Gunship franchise, requiring players to physically maneuver above the zombies they're trying to rain munitions down upon. Now a team based in Venice, California has developed an app that lets you create sketches and physically move around them.

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