У вашего броузера проблема в совместимости с HTML5
A Dirt3 lap demonstrating Virieo Perception providing stereo 3d on the Oculus Rift, with rotation tracking provided by the Rift sensor, and positional tracking from the Razer Hydra strapped in the headband.
Instructions http://www.reddit.com/r/oculus/comments/1emz39/stereo_3d_and_positionalrotational_6dof_tracking/
A new version of Opentrack with various fixes and improvements can be found via http://www.mtbs3d.com/phpbb/viewtopic.php?f=140&t=18781