A spatial node that has its position automatically updated by the [XRServer]. This node can be bound to a specific pose of a [XRPositionalTracker] and will automatically have its [member Node3D.transform] updated by the [XRServer]. Nodes of this type must be added as children of the [XROrigin3D] node. $DOCS_URL/tutorials/xr/index.html Returns [code]true[/code] if the [member tracker] has current tracking data for the [member pose] being tracked. Returns [code]true[/code] if the [member tracker] has been registered and the [member pose] is being tracked. Returns the [XRPose] containing the current state of the pose being tracked. This gives access to additional properties of this pose. Triggers a haptic pulse on a device associated with this interface. [param action_name] is the name of the action for this pulse. The name of the pose we're bound to. Which poses a tracker supports is not known during design time. Godot defines number of standard pose names such as [code]aim[/code] and [code]grip[/code] but other may be configured within a given [XRInterface]. The name of the tracker we're bound to. Which trackers are available is not known during design time. Godot defines a number of standard trackers such as [code]left_hand[/code] and [code]right_hand[/code] but others may be configured within a given [XRInterface].