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