every time you make a world 90% of the time it uses the surface biome leading to blank caves
this is easier to show in a custom world with fewer biomes like two surface biomes or cave biomes I think it’s a bug
I will upload a datapack I made that does this 3D biomes bleed
It does it on the normal world that’s how I found it and started using datapack worlds to test 3D noise
got no picture yet
watch this YouTube vid it shows what I mean https://m.youtube.com/watch?v=Y35JVgDvLFQ
when you add two or more biome layer cave biome also bleed to the surface it happens with just two biomes but its less noticeable
i have added a datapack look for cave biomes and go up top and watch the vid for underground
my biomes are set up 3d so whats happing is not intended note with the pack biome are large so render my not show it on spawn
the desert is meant to be the only biome for the surface
found if i use -2 to 0 and then 0 to 2 for the two biomes it works as intended i think its for values in between the preset values
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USED a altered version of of the pack to show surface biome caves overide noise map choice
and the new picture shows it a blank cave next to a lush caves even when the cave should be a lush cave or a dripstone cave
What's the actual issue here? Cave biomes aren't supposed to be overly common.
If you're asking for a re-balancing of when/how cave biomes are selected, that'd be a change request and not a bug.
@unknown, can this still be reproduced in 1.18-pre5 or later?