Enables certain nodes only when approximately visible.
</brief_description>
<description>
The VisibilityEnabler will disable [RigidBody] and [AnimationPlayer] nodes when they are not visible. It will only affect other nodes within the same scene as the VisibilityEnabler itself.
If you just want to receive notifications, use [VisibilityNotifier] instead.
[b]Note:[/b] VisibilityEnabler uses an approximate heuristic for performance reasons. It doesn't take walls and other occlusion into account (unless you are using [Portal]s). The heuristic is an implementation detail and may change in future versions. If you need precise visibility checking, use another method such as adding an [Area] node as a child of a [Camera] node and/or [method Vector3.dot].
[b]Note:[/b] VisibilityEnabler will not affect nodes added after scene initialization.