A node for driving hand meshes from [XRHandTracker] data. This node uses hand tracking data from a [XRHandTracker] to animate the skeleton of a hand mesh. $DOCS_URL/tutorials/xr/index.html Specifies the type of updates to perform on the bones. The name of the [XRHandTracker] registered with [XRServer] to obtain the hand tracking data from. A [NodePath] to a [Skeleton3D] to animate. 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.