Discussion
you can see through the sides of chunks now because the chunks (correctly!) note that their underground sides faces are obscured. it's just that they're obscured by chunks you can't see because they haven't fully been generated yet
decided to add some simple caverns so it's not noodle caves all the way down
But then .. I just didn't do that and instead made it generate up to N chunks per frame and store everything in RAM and it's been working well so far :)
(Granted, 2D is WAAAAY simpler to work with than 3D for this)
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