Meta AI Research: Quest 2 Body Tracking Estimation Without Trackers
Meta researchers demonstrated Quest 2 body tracking without extra trackers.
Current VR systems ship with a headset and held controllers, so only track the position of your head and hands. The position of your elbows, torso, and legs can be estimated using a class of algorithms called inverse kinematics (IK), but this is only accurate sometimes for elbows and rarely correct for legs. There are just too many potential solutions for each given set of head and hand positions.