>>329259297
Yes, >>329259430 is correct. To pointlessly elaborate, in lighthouse-based equipment (lighthouse is a nickname for base station) like the vive, there's infrared sensors on the headset and controllers (inside the equipment). They look for the infrared lasers emitted by the base stations (which are outside) and use that to calculate their own positions.

Similarly, the Quest and WMR have cameras on the headset, which collect light from the environment, and use that to calculate the headset's own position and the controllers' positions.

By contrast, in the Rift CV1, the poles you had to set up around the room had cameras on them, those watched your headset and controllers from outside, and they sent that data to your computer, which used your precious CPU time and USB bandwidth to calculate your position. Therefore the CV1 sensors were outside looking in (outside-in), unlike the vive/quest/wmr where the sensors are inside looking out (inside-out). When Facebook cancelled the CV1 cameras they did marketing to try to distance themselves from them.

>>329260936
Anything taller than you should be fine. What's odd about it? Are you sure there's no reflective surfaces like mirrors around?