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This Completly Avoid the SDK BTW, you can emulate ANY, Input, with FreePie and FacetrackNoIR, WHich is GREAT! you can Basicly play RACING Gamings, in First persson View with only your Eyes and Pedals.
But This can also be VERY Game Breaking in COMPETITIVE Games and i dont want to give Details… But here it is i dont believe ANYBODY execpt Great Tobii Community will read this.
(Please Alex Make the dangerous info Confidential?, the whole post)

It sure can do anything i believe, simply using FacetrackNOir set the output to facetracknoir_UDP, set the Adress to localhost and assign an NONUSED port.(doesnt really matter). THen you can use (well i use) OpenTrack, Input as UDP Receiver. so Opentrack Can Get the Information from Tobii EyeX.
Alternatively you dont NEED OpenTrack, but Center Hotkeys i found were not working for me on FaceTrackNoIR, also Functions i needed are inside OpenTracks such as, Set Center, when looking at 50% X/Y(the center) of the screen. Doing so makes it so EVEN if the Gaze is not AS ACCURATE AS it SHOULD… It will be for OpenTrack.

Now you must set the Curves at the SAME . else you will get False Data going on, Depending on your Setup always. Then you you want HeadTracking,
— i perssonaly found it EASIER to SETUP, and Calibrate, BECAUSE alot of calibration will be needed to get Correct in-game Funcs.
— Using Python, FreePie. Which can Manipulate From the Tobii .dll themself, to TRACKIR… and even Translate one another Easily.

I can give you an Exemple of Gaze – to Virtual DirectInput. to emulate what i called Byakugan, Basicly looking to your right would turn your camera to the right, since you would be looking at Something specific , exemple : a monster, when your looking to your right at the monster, your character will mostly center at him since your eyes cant lie, if you focus on what your looking FOR. it will just center to it correctly. Now i’ve been Trying and Trying and Trying to get this working WITH the HeadTracking… But i Find it Really NON working =/. The Tobii Headtracking is Really good althoo for COCKPITS views, i gotta admit…

But To get some Extra Accuracy and an Rather finished Smoothing, I PERSSONALY, stick an Android Phone under a hat
Run Facetracknoir UDP Android app. and It just Works… Better then TrackIr. BUT i think an Synergy Between The 2 is The BEst of ALL.

Be advised tho :::

NOTICE ::::(PLEASE Apply some HOT protection under the phone as it might get VERY hot you dont want to burn your head)
:::::::::::(with an Samsung S6(underclocked a bit to get WAY LESS HOT 😀 ), i Remote control it to active the headTracking Function at will with Python scripts again)
And make a lil hole in the hat Butt, Plug that phone so it doesnt Discharge(still can play up to 3Hours Wireless)