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  1. Minecraft: Java Edition
  2. MC-242004

Decorators/structures not generating properly under y=0 for custom superflat worlds.

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    • Unconfirmed
    • World generation

      Custom superflat generation seem to be inconsistent when putting in structures/decorators with the new world height.

      Structures such as geodes, mineshafts are generating only above y=0.
      Strongholds seem to be not generating at all.
      Lava lake features not generating below y 0.

      Most decorators show skewed and inconsistent generation vs default overworld gen:
      Tuff and gravel patches not generating below y 0
      Redstone, lapis lazuli, iron ores not generating their usual heights below y 0
      Diamond ore generating abnormally above y 16

      Other biome-specific decoration has not fully been tested.
      For windswept hill (and likely any mountain biome)-related generation, infested blocks are not generating below y 0.

      How to spot/reproduce:
      Generate a custom superflat world with stone or deepslate for ores and other things to generate in. I suggest filling in the range of the ore distribution.
      Reveal ores and check for structures.

      Superflat Presets:
      Tunnelers' Dream for best observed results.
      Overworld, Desert, and Snowy Kingdom will show the lower decorator inconsistency.

      For the images I generated a custom preset (no datapacks; modifying Tunnelers' Dream)

      minecraft:bedrock,64*minecraft:deepslate,230*minecraft:stone,5*minecraft:dirt,minecraft:grass_block;minecraft:windswept_hills

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            Arivira Arivira
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              Created:
              Updated:
              Resolved: