[MC-147338] Bright spots underwater - ocean lighting errors

The bug

There are bright areas underwater, as if caused by sea pickles or ruins, but it's a cold ocean and there's no light source whatsoever. Similarly there seem to be dark spots.

How to reproduce

Create a world with seed 77 (this probably doesn't matter, but there's an ocean here), and move outside the spawn area.

Linked issues

is duplicated by 1

MC-147514 Underwater lighting errors Resolved

Attachments

Comments 7

Evan Alexander James 2019-04-06T09:22:54Z

I have also seen this. I believe it is due to Diorite having a light level that is fairly high.

AJMFactsheets 2019-04-06T09:56:50Z

Confirmed as a bug in 19w14b. When the blocks are updated sufficiently, the light level drops back down.

Jonathan Davis 2019-04-10T19:58:35Z

Bug still there in pre-release 1

[media]

Jonathan Davis 2019-04-11T01:30:46Z

It looks like bad rendered sea pickles because when I break the right sea grass it goes dark again

MightyPork 2019-04-11T07:00:36Z

it shouldn't be sea pickles, because they don't spawn in cold ocean, but i have a similar experience with breaking blocks.

I discovered the glitch goes away when you go to Optimize World and check Clear Cache Data before running the optimize. This might help debugging

Jonathan Davis 2019-04-11T12:01:27Z

All of which makes me think this is not resolved. Sea Grass should not emit light

Cameron Cubitt 2019-04-11T12:20:18Z

Having this issue still in 1.14 Pre1. Playing on a server. I am having this issue and others aren't, but it's spawning monsters. Both crafted and natural light sources. Tried to fix by updating blocks but it happens again as I sign in and out.