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For a rigid body that has physical size, like a wooden block, it can be rotated on three axes, and positionally shifted on three axes, for a total of six degrees of freedom, also known as [[6DOF]].
For a rigid body that has physical size, like a wooden block, it can be rotated on three axes, and positionally shifted on three axes, for a total of six degrees of freedom, also known as [[6DOF]].
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+In the 1990s, there was a frenzy about 3D tracking and it was used a lot for motion capture for 3D animated movies.
Common methods of 3D tracking include [[SLAM]] and [[electromagnetic tracking]].
Common methods of 3D tracking include [[SLAM]] and [[electromagnetic tracking]].