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  1. Minecraft: Java Edition
  2. MC-242369

World gen is very slow with negative sea level

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • 1.18 Pre-release 5, 1.18 Pre-release 8, 1.18 Release Candidate 1, 1.18 Release Candidate 3, 1.18 Release Candidate 4, 1.18, 1.18.1 Pre-release 1, 1.18.1, 22w03a, 1.18.2, 22w15a, 22w18a
    • Confirmed
    • Crash, Custom Worlds
    • Important
    • Platform

      When using the attached datapack with some custom world generation settings, generating the world is incredibly slow. Normally, my computer can generate a new world fairly quickly. However, something about this makes it stay at 0% for actual minutes. This may be a problem with what I've done in the datapack, but I'm also fairly sure that it's a weird custom world generation bug.

      After letting it run for 10-ish minutes, it crashed with an IllegalArgumentException. I've also attached the crash report.

       

      EDIT: Added an updated pack for 1.18.2 - the world still doesn't load, though.

      EDIT 2: Added another updated pack for 1.19 snapshots - the world still doesn't load too.

       

      UPDATE: After some testing, it's the negative sea level that's throwing Minecraft off.

        1. 1.18 custom world gen test dp.rar
          1 kB
        2. 1.19 custom world gen test dp.rar
          0.9 kB
        3. 22w15a crash log.txt
          8 kB
        4. crash-2021-11-20_17.25.58-server.txt
          5 kB
        5. custom world gen test dp.zip
          4 kB
        6. deobf_22w15a crash log.txt
          30 kB
        7. deobf_crash-2021-11-20_17.25.58-server.txt
          16 kB
        8. log.log
          10 kB

            Unassigned Unassigned
            DementedCreation Eric Veilleux
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            7 Vote for this issue
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            5 Start watching this issue

              Created:
              Updated:
              CHK: