| boundaryOut | A list of vertices representing the boundary. |
bool True if the plane exists (i.e., is still being tracked), otherwise false.
Try to retrieve a list of positions in device space describing current plane boundary.
If successful, the boundaryOut parameter is populated with vertices describing the plane's boundary.
The boundary will always contain at least four vertices, and may contain more depending on the
specific device providing the boundary. Returns false if the plane is no longer tracked by the system.