addTrackingArea(identifier:)
Returns a tracking area which is create on the drawable’s list of tracking areas.
Declaration
func addTrackingArea(identifier: LayerRenderer.Drawable.TrackingArea.Identifier) -> LayerRenderer.Drawable.TrackingAreaParameters
- identifier:
The unique identifier for the tracking area.
Return Value
A tracking area that was created.
Discussion
A tracking area describes a region of a view that interacts with the gaze/cursor. Cannot use cp_tracking_area_identifier_invalid as an identifier.