Use your smartphone as a virtual reality controller.

mutherhacker writes: A group from Osaka University in Japan and McMaster University in Canada have presented a method to control a virtual 3D object using a smartphone [video]. The method was primarily designed for presentations but also applies to virtual reality using a head mounted display, gaming or even quadrocopter control. There is an open paper online as well as a git repository for both the client and the server. The client smartphone communicates with the main computer over the network with TUIO for touch and Google protocol buffers for orientation sensor data.