noRed = new ColorMaskState();
noRed.setAll(true);
noRed.setRed(false);
// setup our stereo camera as the new canvas camera
_camera = new StereoCamera(_canvas.getCanvasRenderer().getCamera());
_canvas.getCanvasRenderer().setCamera(_camera);
// Setup our left and right camera using the parameters on the stereo camera itself
_camera.setFocalDistance(1);
_camera.setEyeSeparation(_camera.getFocalDistance() / 30.0);