>>63280839Mocopi are a bunch of sensors that fit in bands on the four limbs, torso and head and don't require some camera to track the wearer's movements, although the technology seems a bit more convenient than a traditional full motion capture suit as we can see in all the Hololive mocopi streams the tracking is still not very good.
I hypothesize that the avatar's movement goes haywire because the sensors must have some gyroscope that determines the position in which the avatar is positioned and when the wearer sits down or leans a bit the tracking goes haywire.