Light leaking through corners with Smooth Lighting on
The bug
With Smooth Lighting turned on (minimum or maximum doesn't matter) light will spill through the corner of a block if there is a light source either behind or beneath an adjacent block.
How to reproduce
/fill ~-1 ~-1 ~-1 ~3 ~3 ~3 sandstone hollow
/setblock ~3 ~2 ~2 glowstone
/setblock ~2 ~2 ~2 sandstone
- Look at the corner with the light source behind
/teleport @s ~ ~ ~ -50 -10
Linked Issues
is duplicated by18
MC-131713lighting bug with slabsDuplicateMC-135799Lava light shining through block bordersDuplicateMC-139513Small bits of light appears to go through slabsDuplicateMC-140149Found lighting bug still present with stairsDuplicateMC-148718Weird diagonal lighting on sand block in closed environmentDuplicateMC-149625Light issue with lava and blocks next to itDuplicateMC-173802Smooth lighting leaks light through slabsDuplicateMC-181077Lighting issuesDuplicateMC-189077Gost light lavaDuplicateMC-198599 Lighting bug in enclosed space 1.16.2DuplicateMC-202371Slabs and stairs let sunlight shine through them. DuplicateMC-207337Light seems to go through Various BlocksDuplicateMC-210603Lava lights up through wallsDuplicateMC-220877Lighting slabsDuplicateMC-222619Light leaks through stair blocksDuplicateMC-234518Stairs leak lightDuplicateMC-253518Half a brick will let light throughDuplicateMC-256161lighting issues with stairs+slabs above light sourceDuplicaterelates to5
MC-197497Smooth lighting transition from level 1 to 0 is not smooth
NormalMC-58668Smooth Lighting Minimum and Maximum levels no longer differFixedMC-68129Smooth lighting doesn't work properly underwaterFixedMC-148689Smooth lighting / block shading does not work properly in certain cases
LowMC-93869Blocks in front of extended pistons without blocks on the side darken the piston arm if smooth lighting is onLowAttachments17
![[Mod] ampolive](../../../data/avatars/users/18949.svg){kind=small}
![[Mod] Avoma](../../../data/avatars/users/86198.png){kind=small}
- Unresolved
Connor Steppie- Carl Lystad
- 82
- 36
- Confirmed
- Normal
- Platform
- Lighting Rendering
- lighting mojang_internal_1 rendering smooth-lighting smooth-lighting-interpolation-incorrect
1.5.1 - 24w38a
1.5.1 13w16a 1.5.2 13w19a 13w21a 13w21b 13w22a 13w23a 13w23b 13w24a 13w24b 13w25a 13w25b 13w25c 13w26a 1.6 1.6.1 1.6.2 1.6.4 13w36a 13w36b 13w37a 13w37b 13w38b 13w38c 13w39a 13w39b 13w41a 13w41b 13w42a 13w42b 13w43a 1.7 1.7.1 1.7.2 13w47e 13w48a 13w48b 1.7.4 14w02b 14w02c 14w03b 14w04a 14w04b 1.7.5 14w11b 14w30c 1.8 1.8.1-pre3 1.8.7 1.12-pre7 1.12.2 1.13-pre2 1.13-pre3 1.13 18w31a 1.13.1-pre1 1.13.1-pre2 1.13.1 1.13.2 18w43b 18w43c 18w44a 18w45a 18w47a 18w48a 18w48b 18w49a 18w50a 19w03c 19w04b 19w12b 19w13b 19w14a 19w14b 1.14-pre2 1.14-pre3 1.14-pre4 1.14-pre5 1.14.4 19w46b 1.15.1 1.15.2 20w10a 20w17a 20w21a 1.16-pre2 1.16-pre5 1.16-pre7 1.16.1 20w28a 20w29a 20w30a 1.16.2-pre1 1.16.2 1.16.3 1.16.4 20w51a 21w03a 1.16.5 21w05b 21w06a 21w07a 21w11a 21w14a 21w15a 21w17a 21w20a 1.17-pre1 1.17-pre2 1.17 1.17.1 21w37a 1.18-pre1 1.18-rc3 1.18.1 22w05a 1.18.2 22w16b 22w19a 1.19 1.19.2 1.19.3 1.20-rc1 1.20 1.20.1 23w45a 1.20.4 23w51b 1.21.1 24w35a 24w38a
Created Issue:
Light leaking through corners with Smooth Lighting on
With Smooth Lighting turned on (minimum or maximum doesn't matter) light will spill through the corner of a block if there is a light source either behind or beneath an adjacent block.
See screenshots for more info.
Environment
Windows 7 x64
Java 7 64-bit
Attachments7
![[Mod] Ezekiel (ezfe)](../../../data/assets/gravatar/ezekielelin.jpeg){kind=small}
relates to
![[Mojang] Georgii Gavrichev](../../../data/avatars/users/22428.png){kind=small}
[Mojang] Georgii Gavrichev![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
![[Helper] Lord_Quadrato](../../../data/avatars/users/26105.png){kind=small}
is duplicated by
With Smooth Lighting turned on (minimum or maximum doesn't matter) light will spill through the corner of a block if there is a light source either behind or beneath an adjacent block.
See screenshots for more info.
![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
is duplicated by
is duplicated by
is duplicated by
![[Mod] Sonicwave](../../../data/avatars/users/94627.png){kind=small}
![[Mojang] Nathan Adams](../../../data/assets/gravatar/dinnerbone.png){kind=small}
[Mojang] Georgii Gavrichevis duplicated by
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
is duplicated by
The bug
With Smooth Lighting turned on (minimum or maximum doesn't matter) light will spill through the corner of a block if there is a light source either behind or beneath an adjacent block.
How to reproduce
- Look at the corner with the light source behind
/teleport @s ~ ~ ~ -50 -10
![[Mojang] Adrian Östergård](../../../data/assets/gravatar/nighter.jpeg){kind=small}
Importantis duplicated by
is duplicated by
![[Bot] Arisa](../../../data/avatars/users/43007.png){kind=small}
relates to
is duplicated by
![[Mod] Les3awe](../../../data/avatars/users/79847.png){kind=small}
is duplicated by
is duplicated by
is duplicated by
is duplicated by
Relates to MC-197497.
![[Mod] Chandler](../../../data/assets/gravatar/triwonder81.png){kind=small}
relates to
![[Mod] tryashtar](../../../data/avatars/users/41963.png){kind=small}
is duplicated by
is duplicated by
This issue has been fixed in 1.17 Pre-release 2.
is duplicated by
![[Mod] markderickson](../../../data/avatars/users/18946.svg){kind=small}
is duplicated by
is duplicated by
![[Helper] Johnibur](../../../data/avatars/users/28381.png){kind=small}
![[Mojang] slicedlime](../../../data/assets/gravatar/slicedlime.jpeg){kind=small}
![[Mod] turbo](../../../data/avatars/users/92867.png){kind=small}
![[Mojang] SHugoh](../../../data/avatars/users/18947.svg){kind=small}
Probably related to MC-12558, since they started at around the same time (when the smooth lighting changes went into effect).
By the way, it is lighting not lightning. Lightning is what causes Creepers to turn into Charged Creepers and pigs to turn into Zombie Pigmen.
Related to MC-12558
Might relate to the piston part of MC-12558 (see last screenshot)
This bug happens only when "Smooth Lighting" is set to "Minimum" or "Maximum"
Duplicate of MC-12558.
PS: Bug tickets are usually only accepted if in English.
That is smooth ligthing and a different issue: MC-12558
Duplicate of MC-12558
Thank you for your report!
We're actually already tracking this issue in MC-12558, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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Thank you for your report!
We're tracking this issue in MC-12558, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automagically! Please report any issues in Discord or Reddit
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-12558, which is a report that has not been resolved yet.
If you want, you can upvote the parent ticket, and enable watching to receive any updates about it - if you believe you have any information that may be important for this issue, please leave a comment on the parent. Please also use the search function in the future to prevent duplicate reports.
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Duplicate of MC-12558.
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-12558, which is a report that has not been resolved yet.
If you want, you can upvote the parent ticket, and enable watching to receive any updates about it - if you believe you have any information that may be important for this issue, please leave a comment on the parent. Please also use the search function in the future to prevent duplicate reports.
Quick Links:
📓 Issue Guidelines – 🛠 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
💬 Mojira Subreddit – 💬 Mojira Discord
Thank you for your report!
We're tracking this issue in MC-12558, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Hello, does MC-12558 happen to describe the issue that you are experiencing?
Thank you for your report!
We're tracking this issue in MC-12558, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Duplicate of MC-12558.
Duplicate of MC-12558
Relates to MC-12558.
Thank you for your report!
We're tracking this issue in MC-12558, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.
It appears this issue and MC-12558 were caused by the optimizations done to smooth lighting in the experimental snapshot 13w12~, which can be still dowloaded from this bug report: https://bugs.mojang.com/browse/MC-8824?focusedCommentId=55414#comment-55414
This is how a staircase structure appeared before the optimization fixes:
And this is how it appeared after, and still continues to appear in modern versions:
Duplicate of MC-12558.
Thank you for your report!
We're tracking this issue in MC-12558, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
– I am a bot. This action was performed automatically! The ticket was resolved by one of our moderators, and I left this message to give more information to you.
Duplicate of MC-12558
Explanation on set 3:
(a) shows the glitch with the test setup. The two light patches point toward a hidden light source.
(b) shows the blocks behind the glitchy spot. Note the empty space above the glowstone.
(c) shows no glitch when the previously empty spot is filled with a solid block.
If the block removed between a and b is placed again after c, the result is no glitch on any of the blocks. So there seems to be some relation with the transparency of the blocks surrounding the light source in regards to whether the glitch appears or not.
when it's a corner like that, light will always pour in... just saying
@Devon: Um, since when? And which picture are you referring to?
Confirmed.
http://i.imgur.com/SY83XWe.png
http://i.imgur.com/0rEZhz8.png
Still present in 13w16a. Issue updated to reflect this.
I am pretty sure this has happened since at least the update Maximum smooth lighting was added in.
Is this still a concern in the current Minecraft version 1.7.4 / Launcher version 1.3.8 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
@Ezekiel
This is still an issue with those versions, and in 14w02c it is even more of an issue. (I have not tested the other two snapshots)
Confirmed for 1.7.5 and 14w11b
I'm having a similar problem, but in a slightly different situation. If I'm inside a building with stone walls and a roof made of slabs, and no light sources inside, there is a little bit of light at the top of each wall. The slab roof covers the walls, so there is no "crack" for light to seep in through.
This only happens when the roof is made of slabs and only with Smooth Lighting turned on.
It still happens if I extend the walls upwards.
But it doesn't happen if I replace slabs near the edges with stone blocks.
Cross sectional view:
1234567 (roof)
#_____# (walls and empty space)
If blocks 2 and 6 are slabs, light leaks in. If they are stone blocks, light does not leak. The other numbered blocks don't matter; they can be either slabs or full blocks. Blocks 1 and 7 can even be air without changing the result.
Is this still a concern in the current Minecraft version 14w30c or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
Still an issue in 14w30c. Could reproduce it.
Confirmed for
/summon MinecartCommandBlock ~ ~1 ~ {Command:/setblock ~ ~-4 ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:"/execute @p ~ ~ ~ /setblock ~-1 ~3 ~1 air",Riding:{id:MinecartCommandBlock,Command:"/execute @p ~ ~ ~ /setblock ~-1 ~2 ~1 stone ",Riding:{id:MinecartCommandBlock,Command:"/execute @p ~ ~ ~ /setblock ~1 ~1 ~1 redstone_block ",Riding:{id:MinecartCommandBlock,Command:"/execute @p ~ ~ ~ /setblock ~1 ~2 ~1 piston 4 ",Riding:{id:MinecartCommandBlock,Command:"/tp @p ~ ~ ~ 0 0 ",Riding:{id:MinecartCommandBlock,Command:"/execute @p ~ ~ ~ /fill ~-2 ~-1 ~-2 ~2 ~3 ~2 stone 0 hollow ",Riding:{id:MinecartCommandBlock,Command:"/tp @p ~ ~15 ~ ",Riding:{id:MinecartCommandBlock,Riding:{id:FallingSand,Time:1,Block:activator_rail,Riding:{id:FallingSand,Time:1,Block:redstone_block,Riding:{id:FallingSand,Time:1,Block:stone,Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:/fill ~ ~-2 ~ ~ ~3 ~ air},Riding:{id:FallingSand,Time:1,Block:stone,Riding:{id:FallingSand,Time:1,Block:command_block,TileEntityData:{Command:/kill @e[type=MinecartCommandBlock,dy=6]}}}}}}}}}}}}}}}}Is this still an issue in the latest snapshot 16w44a?
Confirmed for 1.12-pre7
May or may not be a different problem, but I've noticed light completely passing through corners of opaque blocks. The area I'm in in NotDark.png and NotDark2.png has no light sources, and the grass/dirt is right next to open daylight, so the daylight is bleeding in. On 1.13-pre1, macOS.
Jackietheboy d, this is
MC-129725Confirmed for 1.13.1.
Affects 19w14b
I can still se leaking light in corners in 20w17a *if *Smooth Lighting is turned on.
Confirmed for 1.16 Pre-release 2. As Thommy Siverman said, the issue only takes place if "Smooth Lighting" is either set to "Minimum" or "Maximum".
Confirmed in 1.16-pre4.
Confirmed in 1.16-pre7.
Affects 20w28a, can I request ownership? Original reporter is inactive
@[~Awesoman3000], completed.
Can confirm it's still a thing in 1.16.3
Can confirm in 20w51a.
Can confirm in 21w05b.
Can confirm in 21w06a.
Can confirm in 21w07a.
Can confirm in 21w11a.
Can confirm in 21w15a.
Can confirm in 21w17a.
I can no longer reproduce this in 1.17-pre2.
Likewise I cannot reproduceThis can be reproduced with stairs.
This can indeed be reproduced with stairs. I've attached a screenshot. Can confirm in 1.17 Pre-release 2.
This might have to do with some of these blocks having light literally inside of them, as opposed to full blocks which cancel light.
Edit: ... and that these blocks don't create shadows →
MC-139621.Should the stairs case be reported separately?
Can confirm in 1.17.
Can confirm in 1.17.1.
Can confirm in 21w37a.
Can confirm in 1.18.2 and 22w19a.
Can confirm in 1.19.
Can confirm in 1.19.2.
Can confirm in 1.19.2.
Spunchbops154: The issue is already marked as affected in 1.19.2. Thank you for the additional confirmation though!