| NJ5 said: Do you mean that it can tell if I move a finger left by 3 mm? In that case, pixel-accurate aiming at 1280x720 would require more than 3 meter movements, even if you make that 10-pixel accuracy that still makes it more than 30 cm, looks like way too much. Just speculation which is probably wrong...
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Yep, for 3mm == 1 pixel, the width of the screen would require 3.84 meters and the hieght would require 2.16 meters. Way too much.
There are many ways one could do this. Given that Natal can detect the length of someones arms, one could use this measurement as the weight for interpolating the hand movement to screen space. Such that your arm span, fully extended, equals screen space.
Another method would be to imagine an imaginary vertical plane in front of the person. Interacting with this plane, would be like interacting with the television. This imaginary plane could be any dimension the developer wanted. The hand position relative to the invisible plane would be converted to screen space. And the movements could be noticed to an accuracy of 3mm. Probably a great number for a number of reasons. Most notably, for smoothness. A slightly shaking hand probably moves more than 3mm.
It all depends on the context of what you are wanting to do for the game.
~BillyBOB
