Note: Performance gains may vary between devices. Feel free to give it a try and experiment with different options!
This method is intended to hide all objects that are not visible to a camera. It does so by recursively checking which other tiles are visible to the camera through doorways and connecting pathways between tiles in the interior.
Note for developers: The Doorway.Socket.Size field is used to determine the bounds of every doorway in the interior. If the size does not encompass the entirety of the possible visible portions of the next tile, then neighboring tiles will likely pop out of visibility when they shouldn't.
This is a more naive method that will make tiles visible that are separated from the camera by a certain number of tiles. This may result in hallways becoming invisible in view of the camera.