Just some ideas that might make it easier to use for some. Not a big deal though, it also works fine the way it is.
When manipulating the entire scene
-ability to translate the entire scene, not just rotate it (provide limits so the center still remains in the field of view.)
Option to manipulate camera, instead of the entire scene
-providing walls with directional cues to keep the user oriented when they face away from the center scene
Puzzle demo (maybe some extra options)
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