Head Tracking with Cliffs of Dover

[MadBlaster]

This is what the manual says it does. High level explanation I guess.

FreeTrack interface
Raw pose
Raw pose affected by model dimensions, position and averaging.
Raw pose Z measurement is distance from camera sensor.
Axis range isn't limited.
All measurements absolute with no centring so centre can only be controlled manually by changing the model dimensions or orientation.
X, Y, Z translation measures the location of the pivot point, adjustable via the point model position.
Ordering of points in point list
Virtual pose
Uses centring, smoothing, averaging, inverts, mapping, response curves, limited by response curve (+/- 180 degrees for rotation and +/- 500mm for translation).

When using the interface for games, especially multiplayer games, the data range should not be trusted and limits used to prevent cheating.