Icyedge on 12 September 2010
I also forgot to add that when you track the hand angle and 3D position perfectly, you can easily extrapolate the arm and shoulder position precisely. So each tech, if program correctly, knows where your shoulders are and what is your shoulders movements. Ever try moving your shoulders without your hands changing angle or position? Since the hand is the extremity, any change in the rest of the arm and shoulder will result in a unique position of the hand position and angle (angle is very important here). Should precise im talking about natural movements here.
