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  1. Minecraft: Java Edition
  2. MC-215966

Large sun-occluding structures cause massive lag spikes when chunks are loaded, but only on servers.

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    Details

    • Type: Bug
    • Status: Resolved
    • Resolution: Cannot Reproduce
    • Affects Version/s: 1.16.5
    • Fix Version/s: None
    • Environment:
      Windows 10, Java 1.8 64 bit
    • Confirmation Status:
      Unconfirmed
    • Category:
      (Unassigned)

      Description

      Issue:

      If you build something in the air that casts a shadow on the terrain below, if it is even slightly large, and you leave the server render distance of that structure and come back, when you first load it you will get a huge frame drop that varies on the type of structure you built.

      How to recreate:

      (I had all maxed out graphics settings, but the same thing happens with all mined out)

       

      1.) Download example server world with default settings.

      2.) Run the server.

      3.) Join the server.

      4.) Walk past the sign in the world download, if no frame drop, walk back in front of the sign and redo it again. (unloads chunks)

      Enjoy frame drop.

      Expected behavior:

      No frame drop, or at least a consistent frame drop on both singleplayer and multiplayer.

        Attachments

        1. 2021-02-17_17.51.26-1.png
          2021-02-17_17.51.26-1.png
          1.16 MB
        2. server.properties
          1 kB
        3. world.zip
          6.26 MB

          Activity

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            Gamepro5 Gamepro5
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              Dates

              Created:
              Updated:
              Resolved: