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  1. Minecraft: Java Edition
  2. MC-175133

Water surface is sometimes rendered from below even if there are blocks above

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    Details

    • Type: Bug
    • Status: Open
    • Resolution: Unresolved
    • Affects Version/s: 1.15.2, 1.16.1, 20w28a, 1.16.2 Release Candidate 2, 1.16.2, 1.16.3, 1.16.4 Pre-release 2, 1.16.4, 20w51a, 21w03a, 1.16.5, 21w06a, 21w14a, 1.17, 1.17.1, 21w37a
    • Fix Version/s: None
    • Labels:
    • Confirmation Status:
      Confirmed
    • Category:
      Rendering
    • Mojang Priority:
      Normal

      Description

      The bug

      Flooded/underwater rooms get a ceiling of water as if reaching an air surface, even directly below a solid block.

      If the solid block is replaced with a waterlogged block the "water surface" effect is removed. But a solid block produces the water surface effect. This is intermittent, it does not effect all blocks in this way, however I have been unable to determine why, or find a work around this purely visual, but incredibly annoying bug for anyone building under water.

      I think it has something to do with proximity to glass, extending 1 block away.

      To reproduce

      1. Build this structure and fill it with water
      2. Go inside
        On the edges of the room's ceiling, you'll see the water surface
      3. Break the middle block and replace it with glass
        Now the water surface is visible everywhere

      It would be expected that the water ceiling only renders from above, but not from below.

        Attachments

        1. 2020-03-18_13.29.17.png
          2020-03-18_13.29.17.png
          599 kB
        2. 2020-03-18_13.29.23.png
          2020-03-18_13.29.23.png
          234 kB
        3. 2020-03-18_13.35.49.png
          2020-03-18_13.35.49.png
          252 kB
        4. Waterbug.png
          Waterbug.png
          4.76 MB
        5. waterbugNoPack.png
          waterbugNoPack.png
          1.72 MB

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              Assignee:
              Unassigned Unassigned
              Reporter:
              Galbadine Martin
              Votes:
              17 Vote for this issue
              Watchers:
              10 Start watching this issue

                Dates

                Created:
                Updated:
                CHK: