Light passes through slabs and stairs
This is the summary of the bug I am having.
I tried making a cover on the outside of my house
And light actually passed through the slabs and stairs
Steps to Reproduce:
1. Place a type of slab or stair block
2. Result: light passes through
Linked Issues
is duplicated by18
Attachments2
Comments16
History35
Changed summary:
Added is duplicated by link: MCPE-948Light passes through wooden slabsDuplicate
Added is duplicated by link: MCPE-426Stone slabs and possibly other slabs don't block lightDuplicate
Added is duplicated by link: MCPE-1726Slabs allow light Duplicate
Added is duplicated by link: MCPE-1888Sunlight halfblock bugDuplicate
Resolution: Unresolved → Works As Intended
Added is duplicated by link: MCPE-2448Slab blocks do not block lightDuplicate
Removed labels: bugs
Added is duplicated by link: MCPE-21371Game mechanic breaking slab bugDuplicate
Added is duplicated by link: MCPE-27121Half Slabs Do Not Block LightDuplicate
Added is duplicated by link: MCPE-62984Weird stair and slab lighting glitchDuplicate
Added is duplicated by link: MCPE-71134Slabs and stairs SHOULD block lightDuplicate
Added is duplicated by link: MCPE-83943Lighting bugDuplicate
Added is duplicated by link: MCPE-82279stairs, walls and slabs do not shade.Duplicate
Added is duplicated by link: MCPE-109073Zombies under a stair will still burn in daytime as if they were directly exposed to the sunDuplicate
Added is duplicated by link: MCPE-114823Stairs have missing shadows unlike java doesDuplicate
Added is duplicated by link: MCPE-115860Incomplete blocks conduct light.Duplicate
Added is duplicated by link: MCPE-132707Stairs do not block sunDuplicate
Added is duplicated by link: MCPE-139894Light going thru stairs and slabsDuplicate
Added is duplicated by link: MCPE-157451Light passes through slabs and stairsConfirmed
Removed is duplicated by link: MCPE-157451Light passes through slabs and stairsConfirmed
Added relates to link: MCPE-157451Light passes through slabs and stairsConfirmed
Added is duplicated by link: MCPE-188363Minecraft Bedrock light problemsDuplicate


Happens to me too. It happens when you place 2 blocks which only touch on the edge and not connected by a solid side. The light passes through the connecting edge, diagonally from 1 empty area to another.
light gets inside the fully enclosed area behind the stairs. It gets in from the top edge of the stairs that connect to the bottom edge of the dirt block.
The inside, which has 0 torches. The light comes in from the top edge of the stairs. If you replace the stairs with a dirt block, the inside is pitch black (as it should be).
Screenshots are taken on iOS (new iPad), not limited to Android.
this isn't really a bug... mojang should keep this, it is helpful for hidden lighting designs.
This is based on the game mechanics. Slabs are considered as transparent (because they don't fill the whole block).
Read on here http://www.minecraftwiki.net/wiki/Opacity
Is this really working as intended? According to the wiki that Kumasasa linked to, slabs and stairs block light, except in PE. Now that we're on Bedrock, what is the actual intended behavior?
I don't believe this is how it SHOULD be. This will also create very big differences between RTX and non RTX.
No way this is working as intended. In Java, slabs blocks light. Bedrock doesn't.
This should be re-opened, it is still a issue and was fixed in Java last year with 1.14
Affects multiple platforms
Stairs are blocked and they aren't glass and how it pass through?
Related to
MC-92Stairs fixed on 1.14
https://www.minecraft.net/en-us/article/minecraft-snapshot-18w46a
This should not be working as intended, as previous comments have mentioned this bug has also occurred in the Java Edition and has been fixed. Affects 1.17.30.
fefeae39-0e01-4b26-b7af-08a4d3fdfeb6
MEQS_REVIEW
Reason: Java fixed this back in 1.14