Interesting Jeremy, I too have been fiddling arond with making a head tracker controller in my spare time at work. Finally got it working and it plugs directly into the joystick port so dont need to use a .dll. It returns pitch and yaw angles of the wearers head.
Costs arounnd $15 to build. Dont have any glasses yet though to fully test it out with.
Costs arounnd $15 to build. Dont have any glasses yet though to fully test it out with.