
Unfortunately, the raw signal of many head-trackers is unstable and would cause users to get sea-sick when used in-game. Filters are pieces of software, which take the raw input of the head-tracker and smooth the output so it becomes usable. The new modular setup of FaceTrackNoIR makes it possible to add new filters easily and for the user to choose his/her favourite.
Icon|Name|Produced by|Supported since|Remarks
----|----|-----|-------------|-----------------------|-------------
|EWMA2|Dave|v160|Much better than EWMA1
|Accela|Stanislaw Halik|v170|The filter uses velocity and acceleration. Works very well.