A node for driving body meshes from [XRBodyTracker] data. This node uses body tracking data from an [XRBodyTracker] to pose the skeleton of a body mesh. Positioning of the body is performed by creating an [XRNode3D] ancestor of the body mesh driven by the same [XRBodyTracker]. The body tracking position-data is scaled by [member Skeleton3D.motion_scale] when applied to the skeleton, which can be used to adjust the tracked body to match the scale of the body model. $DOCS_URL/tutorials/xr/index.html The name of the [XRBodyTracker] registered with [XRServer] to obtain the body tracking data from. Specifies the body parts to update. Specifies the type of updates to perform on the bones. The skeleton's upper body joints are updated. The skeleton's lower body joints are updated. The skeleton's hand joints are updated. The skeleton's bones are fully updated (both position and rotation) to match the tracked bones. The skeleton's bones are only rotated to align with the tracked bones, preserving bone length. Represents the size of the [enum BoneUpdate] enum.