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Type:
Bug
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Status: Open
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Resolution: Unresolved
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Affects Version/s: Minecraft 17w50a, Minecraft 18w01a, Minecraft 18w07c, Minecraft 18w09a, Minecraft 18w11a, Minecraft 18w19b, Minecraft 1.13-pre1, Minecraft 1.13-pre5, Minecraft 1.13-pre6, Minecraft 1.13-pre7, Minecraft 1.13-pre8, Minecraft 1.13-pre9, Minecraft 1.13-pre10, Minecraft 1.13, Minecraft 18w30b, Minecraft 1.13.2, Minecraft 18w45a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w04b, Minecraft 19w05a, Minecraft 19w06a, Minecraft 19w07a
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Fix Version/s: None
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Confirmation Status:Confirmed
The bug
Any block change seems to trigger a redraw of the entire chunk section. This is most noticeable when breaking and replacing blocks, but is also caused by wheat growing, for example. Lag is increased depending on the geometry inside the chunk section – complex models like fences cause greater lag.
This is client-side rendering issue since when filling large areas the command success message appears almost instantaneously in the log but the game freezes for some seconds.
When the debug rendering pie chart is visible the following warnings are logged:
[21:20:51] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.rebuildNear.build near' took aprox 223.112349 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.rebuildNear.build near' took aprox 1796.166532 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup.rebuildNear' took aprox 2046.063861 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level.terrain_setup' took aprox 2046.184909 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer.level' took aprox 2049.560368 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root.gameRenderer' took aprox 2051.362563 ms [21:20:53] [Client thread/WARN]: Something's taking too long! 'root' took aprox 2054.692309 m
How to reproduce
- Use the following command
/fill ~1 ~1 ~1 ~5 ~5 ~5 oak_fence
- Place or break a block next to the filled fences
- is duplicated by
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MC-123582 Rendering Error
- Resolved
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MC-123762 Extreme Frame Drop When Placing/Breaking Blocks
- Resolved
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MC-124153 MC-38433 is back/still in the game
- Resolved
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MC-129545 The FPS is drop to 0 when loading the chunks.
- Resolved
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MC-130282 Decaying leaf blocks cause severe micro stuttering
- Resolved
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MC-133262 lagspikes
- Resolved
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MC-143994 Chorus plants cause great FPS decrease.
- Resolved
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MC-144126 Lag spike when placing blocks.
- Resolved
- relates to
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MC-126518 Redstone or lighting updates causing severe lag and framerate drops
- Open
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MC-131549 Every block change results in it re-rendering
- Open
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MC-123263 Light Update or Block Update FPS issue
- Resolved