Tips: For Chrome users: In order to play well in fullscreen mode, you need to type "about://flags" in address bar and enable pointer lock. If you have poor performance, you may get better results if you disable compositing in your OS. You can also try layers.acceleration.force-enabled set to true in Firefox about:config. (use this at your own risk. a separate profile is recommended since you may have to manually remove it from prefs.js if your interface renders incorrectly afterwards). If you have a Webgl error, you can try forcing webgl to enabled. In Firefox, go to about:config, and set webgl.force-enabled to true. In Chrome, start Chrome with --ignore-gpu-blacklist.