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'''3D tracking''' is the tracking of the position and orientation of an object in three-dimensional space.
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'''3D tracking''' is the tracking of an object's position and orientation in three-dimensional space.
It is also known as six degree of freedom tracking, for the six total degrees of freedom: three of rotation and three position.
It is also known as six degree of freedom tracking, for the six total degrees of freedom: three of rotation and three position.