Defining our coordinate system
When the camera is level, it is very important to verify that the tracking system is sending 0 for tilt and roll. If not, you should reset or zero out the tracking system. If that is not possible, apply offsets in the Pixotope Director until the resulting values for tilt and roll are zero. You can then be sure that both the real and virtual cameras are level. If leveling the camera is not possible, use a digital level and verify that the tracking data contains the correct angle values for tilt and roll.
Next, we zero out the pan value of the tracking in the direction we want to use as “forward”, or the X-axis in Pixotope.