Check this out fellas, especially those having sunlight and other issues with trackIR (or those that still don’t own one). Quite cheap and effective alternative without infrared limitations.
You get video that explain everything on following link:
http://forum.il2sturmovik.com/topic/7160-trackir-history-rift-tech-free/
Giro is much better then camera anyhow, kind of odd we did not see this years ago as TIR looks quite outdated tech to me, even it’s working ok, it’s really quite limited when you think how well and precise movement is tracked for little money even on cheap smartphones or some console controllers…