Maybe the tracking of hands for the controls do not work outside. At least with the kinect, the IR projection that it depends on to map the 3d space will not wo

Maybe the tracking of hands for the controls do not work outside. At least with the kinect, the IR projection that it depends on to map the 3d space will not work well (or at all) in direct sunlight. When I was working with robotics that had kinects mounted for 3d vision we always had to put the blinds down when the sun was shining into the office.