Slab and stairs lighting incorrect
Linked Issues
is duplicated by74
MC-5430slab lighting problemDuplicateMC-5471Light bugDuplicateMC-5574black side of slabDuplicateMC-5592Lighting issueDuplicateMC-6215Lighting bug on the side of Stone stairs.DuplicateMC-6383up coner stairs lighting bugDuplicateMC-7018Slab ShadowsDuplicateMC-7177Quartz Stairs lighting glitchDuplicateMC-7297Stairs textureDuplicateMC-8768When a slab is above a chest and a solid block/slab is infront it creates a lighting bug.DuplicateMC-987613w07a - Light Bug which occures with half slabs and blocksDuplicateMC-10037strange lighting in half slabsDuplicateMC-10542Light goes trough stairsDuplicateMC-10668Lighting issue with half slabsDuplicateMC-10972Fence Gate and StairsDuplicateMC-11925hopper lightDuplicateMC-12131Lighting EngineDuplicateMC-12179Minecraft Slab Lighting IssueDuplicateMC-12256Wooden slabs lighting issueDuplicateMC-12292Fancy Graphics-Leaves aren't transparent behind slabsDuplicateMC-12614Lighting 1.5 slabs and stairsDuplicateMC-15723lighting AreaDuplicateMC-16845Tryed to make safe place for the crops but two slabs that had 1 block hight from another blocked light.DuplicateMC-24582shadows under slabs that have solid blocks on top of themDuplicateMC-25911Upside Down Stairs Lightning GlitchDuplicateMC-28669when placing stairs around glow stone it causes a lighting glitchDuplicateMC-29223Upside-Down Quartz stairs have lighting glitchesDuplicateMC-30469Slab Light BugDuplicateMC-31424Bugged lighting with slabsDuplicateMC-32551Upside down half slab lighting issueDuplicateMC-35827Block in front of upside-down stair lighting bugDuplicateMC-36041Half slabs and stairsDuplicateMC-38252old Light House Bug and old SlabDuplicateMC-38880Quartz Slabs Causing Lighting IssuesDuplicateMC-42917When you put a stair in front of a redstone torch, this is black and when aren't ligth this shinesDuplicateMC-44029Slab BlockDuplicateMC-45385Upside-Down Stair & Half Slab Lighting ErrorDuplicateMC-48127Lighting Still Horrid!DuplicateMC-48364Lighting issue with quartz stairs(corner pieces) and quartz slabsDuplicateMC-49915Problem with Stairs and lightsDuplicateMC-52428Wooden/Stone Slabs Incorrectly affect lightingDuplicateMC-53085Whenever there is an upside down staircase that is inverted (That is, 7/8 of the full block is there except for one of the bottom corners), the area that is not filled in (the other 1/8) is always darkened.DuplicateMC-54006Looks Ugly in housesDuplicateMC-54340Shadows On Corner StepsDuplicateMC-54441Lighting bug on upside down corner stairsDuplicateMC-55350ShadowsDuplicateMC-62356Stair light bugDuplicateMC-81620Stair Darked OutDuplicateMC-86848LightingDuplicateMC-94497Lighting bug when using hafl-slabs as ceilingDuplicateMC-97026Lighting BugDuplicateMC-105271Stairs let in lightDuplicateMC-106326Slabs glow in the dark (no block- and skylight in surrounding)DuplicateMC-107124StairsDuplicateMC-107362Light showing through half slabs.DuplicateMC-109401Lighting bug involving slabs, sides appear darker.DuplicateMC-113239Lighting blocked by stairDuplicateMC-115339Light rendered but not actually thereDuplicateMC-117554The slabs are not transparent as they shouldDuplicateMC-123295Lighting broken in closed off areasDuplicateMC-125156Lighting BugDuplicateMC-126787Lighting bugDuplicateMC-137345slabs and lightDuplicateMC-137880Slab's shadows are too darkDuplicateMC-138585Light GlitchDuplicateMC-278Bug slabs with all materials in minecraftDuplicateMC-304Slabs not lighting properly when placed in upward position.DuplicateMC-626Lighting bug with stairsDuplicateMC-758Stairs have lighting glitches.DuplicateMC-3061Light bug creates shades in the cobblestone stairsDuplicateMC-3620Upside down stairs lighting bugDuplicateMC-4530Lighting EngineDuplicateMC-4593Ilumination Bug with Sandstone laddersDuplicateMC-414Light glitch on corner stairs and slabsDuplicateAttachments33
- Fixed
Jonathan Markevich![[Mojang] Georgii Gavrichev](../../../data/avatars/users/22428.png)
[Mojang] Georgii Gavrichev- 291
- 38
- Confirmed
- light lighting slab stair stairs
1.4.2 - 18w45a
1.4.2 1.4.6 1.4.7 13w02a 13w02b 13w07a 13w09a 13w09b 13w10b 1.5 13w11a 1.5.1 1.5.2 13w18c 13w19a 1.6.1 1.6.2 1.6.4 13w38c 13w39b 13w41a 13w41b 13w42a 13w42b 1.7.1 1.7.2 13w48a 13w48b 13w49a 1.7.3 1.7.4 14w04b 14w05b 14w06a 14w06b 1.7.5 14w11b 1.7.6-pre1 1.7.9 14w17a 14w18b 14w20a 14w20b 1.10.2 16w38a 1.11 1.11.2 17w06a 17w13b 17w18b 1.12-pre1 1.12-pre2 1.12-pre6 1.12 1.12.1-pre1 1.12.1 1.12.2-pre1 1.12.2 18w03b 18w14a 18w16a 18w21b 18w22c 1.13-pre1 1.13-pre2 1.13-pre3 1.13-pre5 1.13-pre6 1.13-pre7 1.13-pre8 1.13-pre9 1.13-pre10 1.13 18w30a 18w30b 18w31a 18w32a 18w33a 1.13.1-pre1 1.13.1-pre2 1.13.1 1.13.2-pre1 1.13.2-pre2 1.13.2 18w43a 18w43b 18w43c 18w44a 18w45a- 14w26c 18w46a
Created Issue:
Upside-down slab lighting incorrect
If you take slabs and tile them as a ceiling, the shadows are incorrect. If you tile the whole ceiling it becomes almost black, regardless of any room lighting.
To replicate: Create a 3x3 (or 4x4 is better) tile of slabs on a ceiling.
Environment
Mac OS X 10.8.x, JRE 6
Linked Issues
is duplicated by1
TRASH-519
Attachments2
![[Mojang] Nathan Adams](../../../data/assets/gravatar/dinnerbone.png){kind=small}
[Mojang] Nathan AdamsUpside-down slablighting incorrectSlab & stairs lighting incorrect
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![[Mod] CubeTheThird](../../../data/assets/gravatar/cubethethird.jpeg){kind=small}
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In the first screenshot, there are only two sofas (like the ones in the 1st floor) right above the ceiling.
In the second screenshot, there are blocks right above every slab.
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![[Mod] Ezekiel (ezfe)](../../../data/assets/gravatar/ezekielelin.jpeg){kind=small}
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Quartz Slabs
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Done.
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Color me a little dumb, but I can't see a way to attach them here. I had not yet uploaded them when I posted here – silly me – but they are now there.
The snapshot version:
http://www.richardspens.com/images/shared/2014-05-21_17.35.jpgThe 1.7.9 version:
http://www.richardspens.com/images/shared/2014-05-21_17.34.jpg
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[Mojang] Nathan Adams![[Mod] Neko](../../../data/avatars/users/92901.png){kind=small}
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![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
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If you take slabs and tile them as a ceiling, the shadows are incorrect. If you tile the whole ceiling it becomes almost black, regardless of any room lighting.
To replicate:Create a 3x3 (or 4x4 is better) tile of slabs on a ceiling.
Mac OS X 10.8.x, JRE 6
Slab&stairs lighting incorrectSlab and stairs lighting incorrect
![[Mod] Pokechu22](../../../data/avatars/users/92931.png){kind=small}
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![[Mod] NeunEinser](../../../data/avatars/users/39263.png){kind=small}
![[Mod] bemoty](../../../data/avatars/users/50554.png){kind=small}
![[Helper] Lord_Quadrato](../../../data/avatars/users/26105.png){kind=small}
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![[Mod] Asteraoth](../../../data/avatars/users/92886.png){kind=small}
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[Mojang] Georgii Gavrichevrelates to
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
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Appears in 1.14.4
This bug was resolved as Duplicate.
The original issue MC-92 is not yet resolved.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 30% of tickets are being closed as duplicate.
Ah now I see your problem. Because your ceiling is made of slabs, the lighting is not correct. Unfortunately, this has already been reported (on several occasions). Before posting bugs please use the search function. Duplicate of MC-92.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.
and
This ticket is invalid as it relates to a modded or 3rd party client/server.
- Any non-standard client/server build needs to be taken up with the appropriate team, not Mojang.
- Any plugin issues need to be addressed to the plugin creator.
- This site is for addressing issues related to the base unmodded MineCraft.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.
Duplicate of MC-92 , please use the search function to see if your bug has already been submitted. Currently over 35% of tickets are being closed as duplicate.
this bug repoter is similar to "MC-92"
but some different
please reference under the picture
Duplicate of MC-92. Please check before posting in the future.
Duplicate of MC-92. Please use the search function to check before posting in the future.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 51% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 52% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 53% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
30th Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 54% of tickets are being closed as duplicate.
Did you use stairs for the walls like in my screenshots ?
If yes, duplicate of MC-92
31st Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 56% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 58% of tickets are being closed as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 58% of tickets are being resolved as duplicate.
37th Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 56% of tickets are being resolved as duplicate.
34th duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 43% of tickets are being resolved as duplicate.
Duplicate of MC-92, please use the search function to see if your bug has already been submitted. Currently over 47% of tickets are being resolved as duplicate.
40th Duplicate of MC-92 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
44th Duplicate of Unresolved
MC-92
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
45th Duplicate of Unresolved
MC-92
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Duplicate of MC-92
This bug is new. This is not the known "10 years old" bug. (THIS IS NOT THE MC-92 BUG!) I cant find a report for this. Look at the screenshot 1 - 14w11b - Left = half slabs, right = full block
screenshot 2 - same but 1.7.5
54th Duplicate of MC-92 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
I think this is a duplicate of MC-92
From your description, I believe you are referring to one of the most popular bugs - MC-92
Duplicate of MC-92
Duplicate of MC-92
If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Duplicate of MC-92
Duplicate of MC-92
Duplicate of MC-92
Duplicate of MC-92
Duplicate of MC-92
Duplicate of MC-92 I think
Probably MC-92?
So this is the exact opposite of MC-92, where the lighting on slabs in a room is dark while this is light on slabs.
Not really, this is about the slabs not letting light trough, even if it's supposed to be able to go trough.
MC-92 is about the slabs being darkened when lit and surrounded by other blocks.
![[Mod] Les3awe](../../../data/avatars/users/79847.png){kind=small}
This issue duplicates MC-92.
This issue duplicates MC-92.
We reopened the old MC-92 since it handled all inconsistencies with lighting and slabs/stairs back when it was even more broken.
Duplicates MC-92
Thank you for your report!
However, this issue has been closed as a Duplicate of MC-92.
It has been linked to this report. If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Thank you for your report!
However, this issue is a Duplicate of MC-92.
It has been linked to this report. If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Thank you for your report!
However, this issue is a Duplicate of MC-92.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Thank you for your report!
However, this issue is a Duplicate of MC-92.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki
Do the screenshots in MC-92 depict what you were trying to do?
If that's not the case and you can't upload screenshots here, please upload them somewhere else (for example imgur) and link to them here.
Then this is working as intended, as MC-92 was just recently fixed so that non-full blocks (such as slabs or stairs) now can let light through.
Related to MC-92
Stairs fixed on 1.14
https://www.minecraft.net/en-us/article/minecraft-snapshot-18w46a
Just an FYI: placing a light source above these blocks will remove the glitch. However I am aware that it is still a bug.
This also happened to me in 1.3.2.
this also happen to corner stairs
This Is A Long Standing Bug, If You Want To Remove That Horrible Effect, Place A Torch Above The Slab/Have No Blocks Above The Unlit Slabs
@Arthur
Just an FYI:
Your wierd habit of capitalising the first letter of every word is really difficult to read. I'm not trying to be annoying, it's genuinely hard to read your comments
Yeah, I know, sorry, this 'habit' annoys me too.
This error make this effect in my underground temple (that has no other blocks above his roof). When it's day, the roof is lightened, when it's night, the roof turns black.
Related is
MC-2399where I have analysed the source of the problem. In short: Transparent blocks take their brightness from the block above or the 4 blocks beside them, but not from the block below them. They should take their brightness either from the block itself or at least from all 6 adjacent blocks.Still having this issue in 1.4.5. Upper-half-slab adjacent only to full blocks is dark. Not sure if any of the screenshots capture this, I can post one if you want. (No client mods)
[[edit]] Blocks were only lit from below.
Lightning bug on half Steps and Stairs already there on v.1.4.5
They were talking about fixing it in 1.4.* but they pushed trying to fix it in the next update. I also heard that if they fix it the way they know how to it would slow minecraft considerably.
I can confirm this. I have many buildings with upside-down half slabs as the ceiling/floor and they still look buggy. However, they look normal if the block exactly above them is not occupated.
Here are some screenshots.
<EDIT: Uploaded the screenshots properly>
In the first screenshot, there are only two sofas (like the ones in the 1st floor) right above the ceiling.
In the second screenshot, there are blocks right above every slab.
Gustavo, it is recommended that you attach screenshots directly here.
I can confirm this in 1.4.4, 1.4.5 and 1.4.7.
can someone post this screenshot please? It wont work on my browser for some reason pVKcMxi.png
Thanx Tails
In case you tried to use "Attach Screenshots" pro tip: use "Attach Files" instead.
It's being fixed \o/
should be resolved now (in 13w05a)
Can we get a confirmation of whether this happens in 13w10a and an update to the affected versions? If it doesn't affect the current version it should be marked as resolved.
I was unable to reproduce the slab shadow issue in the latest snapshot (13w10a). Not sure about the stairs.
This still happens in pre1.5 for me , at least for slabs
I see the issue in the 1.5 pre-release, too.
Should be complete dark. Still totally b0rked lighting on stairs and slaps in 13w11a …
I noticed that this only happens when "Smooth Lighting" is set to "Off". I went back to 13w10a and checked with Smooth Lighting Off and it was, in fact, still in that version. If people can't see it, they may have a different lighting setting.
Also, it's still in 1.5.
On 1.5.1. So annoying because my floor is made of half slabs so anywhere I have crafting tables, my basement gets black spots.
The same issue applies for my MC 1.5.1
My Smooth Lighting is set to "maximum" and this problem still occurs
This same issue as to why half slabs display black.
Its because of blocks are treated the same.
Additional blocks are treated different.
Stairs and Slabs are treated different than blocks.
Bottom line: Minecraft is code is poorly done. But remember this was one of the first things ever coded by the guy!
If only all of us could do such a great job on our first try! It just needs some refinement and TLC...
It also happens when stairs are placed upside down and a slab in the middle.
This is a sewer that I made and it depends on what is placed above ground what the lighting will be like in the sewer. I tried different things but nothing solves it.
But puting Smooth lighting on maximum reduces the blackness of the 'shadow'
yes, because non-solid opaque blocks like slabs and stairs get the lighting from the block up it or on the sides, not on the botton. to make the thing wor, we will need a new stair/halfblock lighting system this happens because the engine was crated before the "you can put slabs and stairs upsidedown" update, so, it will not get light from the under part of it, because it is blocked. Now, to fix that, mojang can make dynamic block lighting for slabs and stairs, supporting every direction they can turn. Sory for my bad english, i'm from brazil.
Here it is:
1. Before
2. The Glitch
3. Stair block replaced with regular block
This bug should be updated to show it still affects version 1.6.2.
Confirmed for 13w36a !
Still happening (with less severity than 1.4 and 1.5) in 1.6.4.
Is also with ladders and blocks around and one above it
Windows 7 64-Bit
Java 7
Creative
MC 1.6.4
Confirmed for 1.7.2
Still exists in 1.7.4. If you have a hollow area underground and place slabs against the ceiling, any slabs exposed to direct sunlight will show black from below when the room is lit with a torch and no other light can get in. Same with stairs.
Appears to have been partially fixed as of 1.7.4. A ceiling of slabs, as in the second and third pictures, now behaves as expected in most cases from what I have observed.
I am still seeing this on 1.7.4 with Smooth Lighting off. I believe I've resolved the problem with a mod I'm working on. In the ChunkCache class in the getSkyBlockTypeBrightness method, I've replaced the line "return var5;" with these lines:
Could any modders out there check my changes for any side effects I haven't noticed?
I am NOT seeing this issue in 14w06b.
2014-02-06_21.29.47.png
Look at Block and Sky Light... Huge bug since ever..
Still happens with 1.7.4...I tried mixing slabs and stairs in a ceiling, and in certain sides of the stairs black squares appears if you put a slab nearby. Very annoying.
Confirmed for 1.7.5 and 14w11b
I am also experiencing this issue, but only in 14w11b, not 1.7.5. Half slabs are darker than full slabs and other blocks. Sometimes only one side of the half slab appears darker. This only occurs when smooth lighting is activated. Additionally, the space above the slab is NOT occupied. The bug occurs independently.
14w11b has this bug but it may be a new form. I don't remember this lighting quite this strangely in earlier 1.8 snapshots.
...indeed, the bug has gotten much worse in the newest snapshots.
It happens in the 1.7.9 version.
I am seeing shading errors in 14w20b that are not present in 1.7.9. I have uploaded two images that show the error and also how the same exact scene appears in 1.7.9. Environment for both images is clear weather, clouds off, time = 6000, and the viewing direction is south-southwest.
The snapshot version:
http://www.richardspens.com/images/shared/2014-05-21_17.35.jpg
The 1.7.9 version:
http://www.richardspens.com/images/shared/2014-05-21_17.34.jpg
@Richard You should probably just attach the images here. Both of your links 404.
Color me a little dumb, but I have just now figured out how to attach them here. The first one is from 1.7.9, the second is from 14W20b.
Is this still a concern in Snapshot 14w25b 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.
It appears to me that this seems to be fixed in 14w26b. Any others confirm this?
can confirm fix
@qmagnet, @FVbico: Can you confirm that it no longer happens when "Smooth Lighting" is set to "Off"?
makes no diffrence for me, still fixed on my pc
Seems to be fixed with smooth lighting off as well.
This issue still exists for me in 14w26b with slabs and stairs. Smooth lighting is set to maximum.
This issue was fixed for me in 14w25b. It remains fixed, with smooth lighting set to MAXIMUM or to OFF.
This is what I'm experiencing in 14w26c. I'm using Windows 7 64 bit with Java 7 64 bit. Smooth lighting is set to Maximum.
The light from a pumpkin partially bleeds around stairs to create unusual bright spots and shadows.
Removing the pumpkin, you can see that light bleeds through a ceiling of half slabs to leave the top layer bright and the rest of the room in darkness.
14w26c and smooth lighting seems to fix this completely. If I turn off smooth lighting it's still not perfect but definitely acceptable.
@Byron What you observe is not the issue of this ticket.
, [^2.%20The%20Glitch.jpg] or 2013-11-07_21.06.47.png
See for example this 2012-09-27_17.17.47.png
The effect with your staircase is working by design since slabs and stairs are transparent.
Good to see one of the oldest issues finally fixed. Awesome job, Mojang!
Reopened, occurs again in a different way in latest version
See also
MC-105271andMC-107124To be more precies: the stairs/slabs let light through them (javaw_2016-09-27_18-52-33.png and javaw_2016-09-27_18-52-12.png).
i have the same issue after updating TU46 I'm on xbox 360
Confirmed for 1.12-pre2
Affecting 18w16a
Hello,
I have this bug too. (18w22c)
(I attached a picture above in the big picture list (2018-05-31_22.57.33 <- the Name from the picture))
Confirmed for 1.13-pre1
Confirmed for 1.13-pre3
Confirmed for 1.13-pre5
Confirmed for 1.13-pre4 & 6.
Confirmed in 1.13-pre7.
Confirmed for 1.13-pre8.
Confirmed for 1.13-pre9.
Confirmed for 1.13-pre10.
Confirmed for 1.13.
Confirmed for 18w30a.
Confirmed for 18w31a.
Confirmed for 18w32a.
Confirmed for 18w33a.
Confirmed for 1.13.1.
Confirmed for 1.13.2-pre1.
Confirmed for 1.13.2-pre2.
This looks much better in 18w46a, but I maybe wouldn't mark it as "fixed":
1.13.2:
18w46a:
*Edit: Also, the corner block in the middle of the image is an outward facing stair.
That is smooth ligthing and a different issue: MC-12558
Not completely fixed (18w46a):
How it still can be reproduced in 18w46a:
So I think this bug should be reopened
Please create a new ticket about any potential issues with the new lighting. This ticket is ancient and won't be reopened.
Appears in 1.14.4
Then please create a new ticket.