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MC-177016

Some lakes in frozen biomes generate unfrozen

Resolved
Fixed
5

The bug

Upon world generation within snowy biomes, lakes that have water surfaces exposed to sunlight are sometimes not frozen over. This can either happen for the whole lake if it is within a chunk, or along chunk borders if it is between chunks. It doesn't seem to be dependent on 8x8 chunk sections as it is described in MC-125007.

How to reproduce

  1. Generate new world

  2. Locate igloo or find some way to go to a snowy biome

  3. Observe surface lakes until one is found in this condition

[media]

Linked issues

clones 1

is duplicated by 3

Attachments

2020-09-24_18.54.38.png 2020-09-24_18.54.42.png 2020-09-24_18.54.56.png 2021-02-01_08.57.39.png image-2020-04-01-20-37-00-294.png image-2020-04-01-20-40-02-835.png

Comments 5

Can confirm that is an issue in 20w51a.

Relates to MC-132306.

Can confirm in 21w03a. Here's another example:

Seed: 5111182643405850053
Coordinates: /execute in minecraft:overworld run tp @s 2953.57 77.73 2358.56 -134.38 59.53

This can be fixed partially by MC-223305. The lake will generate, and only after water will freeze.

But it will still suffer from MC-119599. If it generates into an old chunk, water won't be frozen there. To fully fix this, lakes would have to generate ice themselves.

Fixed in 21w40a

qwerty23495

(Unassigned)

Confirmed

World generation

1.15.2, 20w14a, 1.16.3, 1.16.4, 20w51a, 21w03a, 1.17, 21w38a

21w40a

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