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== Methods ==

== Methods ==

* [[Markerless inside-out tracking]], which is [[camera-based tracking]] (SLAM/VIO)- This is used on headsets such as Meta Quest headsets and the [[Project North Star]]. An open source method is [[Basalt]]. It can use visible light or infrared light, which can be artificially emitted.

* [[Markerless inside-out tracking]], which is [[camera-based tracking]] (SLAM/VIO)- This is used on headsets such as Meta Quest headsets and the [[Project North Star]]. An open source method is [[Basalt]]. Markerless inside-out tracking can use visible light or infrared light, which can be artificially emitted.

* [[Marker-based tracking]] - Camera based tracking that uses markers in the environment, which is simpler to implement.

* [[Marker-based tracking]] - Camera based tracking that uses markers in the environment, which is simpler to implement.

* [[Electromagnetic tracking]].<ref name=3duibook/> Electromagnetic tracking requires an external source. It gets jittery when there is metal around, like a metal laptop computer. Magnetic tracking is typically wired, but it does not have to be.

* [[Electromagnetic tracking]].<ref name=3duibook/> Electromagnetic tracking requires an external source. It gets jittery when there is metal around, like a metal laptop computer. Magnetic tracking is typically wired, but it does not have to be.