Smidlee said:
There is a good reason why TrackIR uses three points of reference to track 6D movement (one point set back from the other two.)I beleive you knew I wasn't referring to have many led light the wii actually uses but how many points it uses which would at least required 3 LED lights to do 6D movement. With two point reference there are two way to make the two points closer together from the camera viewpoint, the first it to move farther from the camera and the secord is to turn your head a little to the right or left. With 3 points of reference the camera can tell the difference between head movement from head 3D position. Thus wii head tracking would be limited for the most part 2D movement.
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Ahh yes I see that limitation, except it isn't really a limitation considering you have to look at the TV to see whats going on. So it can be used to track the distance you are from it, it just means if you turn to one side anyone else watching (unless you happen to game diagonally) would see it as if you had moved further away. I was also wondering why it's called 6D motion when there is no such thing (it's either full 3D or less) unless this game or whatever you were referring to is made by Sony (6 axis... Ha!) Edit: You could actually stop it happening with a bit of programming and hardware design too. If you "blinkered" the LEDs on the headgear so they are only visible when aimed directly at the screen, then program any movement to stop as soon as you look away (so you can move to a place and look away but nothing on screen changes till you look back)
