https://par.nsf.gov/servlets/purl/10432264
Active tracking enables higher precision in tracking
the positions, orientations, and states of the virtualized objects.
STEAMVR Lighthouse tracking base-stations can be used for
tracking specific objects. However, current solutions are bulky
and costly. The overall goal of this research work was to reduce
the size and cost of active VR trackers to enable their attachment
to ever smaller physical tools and objects to be tracked in the
real world and displayed in a virtual reality environment.