I try once TrackIR at my nethew, who test it for one PC magazine. I was amazed!
But nethew told me, that somethimes TrackIR goes mad if pilot move head too much around or out of reach of IR camera. (mostly when operating some controlls on the desk..throtle, flaps ect... )
When returning head toward PC monitor, virtual head stuck at some odd position...
As far as I test this free gizmo from didja, I can go even outside room, and when I sit on the chair again, the view work as it should.
The only problem I encounter was, that behind me, there is a door for my room. So if someone open that door and light from the corridor came in my room, there is a tweak in the view. Obviously the camera gets confuseed from backlight, and program had hard time finding four bright lights there...
But, I can write on my door (on corridor side): "ON THE AIR!"
not to be disturbed when flying.
And one more thing!
I didnt realize till now, how often I scratch my head during flight! Now with cap on the head it is impossible