Feature Request: Choose bottom layer in Cave Map #1024
Description
Describe the new feature.
Currently, the cave map has a "Vertical Chunk" slider which allows the user to select the "ceiling" level to render the map.
Transparent pixels are then rendered from y=ceiling to the bottom of the world.
In worlds with multiple variable height layers, like those generated by some mods (like the floating island generation mods), it would be useful to also be able to have a "Floor Vertical Chunk" slider.
This would then render transparent pixels from y=ceiling to y=floor.
This feature would enable to see slices of the world like y=(240,120), ignoring everything below y=120. (Of course the numbers would be chunk aligned).
My suggestion is if the Floor Vertical Chunk is not at the bottom, to draw the floor level as pure white (to be able to distinguish it from solid unlit areas which currently are black). Though a "pick floor color" option would also be amazing.
It's fine if the feature is only implemented in the latest version.
Thanks a lot for your time.
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