BoneBody

Map a named bone on skin to an explicit physics body. Enable physicsPose on the skin's AnimationSource. weight blends from animation to the simulated pose; offset is in metres in the body's local frame, with a quaternion rotation offset. Mappings are normal synchronized entities and replicas read the replicated body. One active mapping per bone. This path currently requires uniform positive scale on the skin and bone ancestry; unsupported scale is reported, not silently repaired.