Hostile mobs cannot see through transparent blocks
During earlier versions of Minecraft monsters could track the player through blocks. When a one-wide wall of transparent blocks [glass/iron bars/stained glass/glass panes/vines/fences] is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival], even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall], it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. Zombies can locate villagers through any opaque or transparent block, but fail to do the same with the player.
This ability for any aggro hostile mob to track a player despite blocks impeding line-of-sight is inconsistent with the mob not being aware of the player's presense through those same blocks when not aggro.
Linked Issues
is duplicated by8
MC-120313Hostile mobs not targeting the player though Glass, Iron bars etcDuplicateMC-151608Mob cannot see the other mobs and the player when they are behind the glass DuplicateMC-153513Pillagers cannot see players through glassDuplicateMC-157669Zombies and drowned do not tracking the locked up villagers.DuplicateMC-169391Endermen cannot be angered when stared through glassDuplicateMC-199014Hostile creatures do not see through glassDuplicateMC-213259Pillager and ravanger AI does not pathfind and try to shoot villagers through iron doors.DuplicateMC-264655Throw snowballs at hostile creatures and they will not look at you or pursue you.Duplicate
MCPE-44345
- Works As Intended
Greg Milson
G. Hammond- 22
- 15
- Community Consensus
- Mob behaviour
- Survival
- AI mob pathfinding transparency
14w30c - 1.16.3
14w30c 1.12.1 1.12.2-pre2 1.12.2 17w43b 18w01a 18w02a 18w03b 18w05a 18w21a 18w21b 18w22a 18w22b 18w22c 1.13-pre1 1.13-pre2 1.13-pre4 1.13-pre5 1.13-pre7 1.13 18w30a 18w30b 18w31a 18w32a 1.13.1 1.13.2-pre1 1.13.2 19w08b 19w09a 19w12b 19w13a 19w13b 1.14-pre2 1.14-pre3 1.14-pre4 1.14-pre5 1.14 1.14.2 1.14.3-pre3 1.14.4 19w40a 1.15.1 1.15.2 20w08a 20w10a 20w17a 20w19a 1.16-pre6 1.16.1 20w28a 1.16.2 1.16.3
Created Issue:
Hostile Monsters cannot see through transparent blocks.
During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival], even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall], it will lock on to my position and quite happily pathfind through a maze of opaque blocks in order to find me. This seems inconsistent.Environment
os.name = Windows 8
os.version = 6.2
os.arch =amd64
java.version = 1.7.0_51
Yes, that's right--ignore me and the gap between the red and normal glass that would allow you to get to me.
Completely Oblivious.png
During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and quite happily pathfinds through a maze of opaque blocks in order to find me. This seems inconsistent.
During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and quite happily pathfindsthrough a maze of opaque blocks in order to find me. This seems inconsistent.During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. This seems inconsistent.
During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines/fences is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. This seems inconsistent. Zombies can locate villagers through opaque blocks
During earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines/fences is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me.This seems inconsistent.Zombies can locate villagers through opaqueblocksDuring earlier versions of Minecraft monsters could track the player through transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines/fences is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. Zombies can locate villagers through any opaque or transparent block, but fail to do the same with the player. This seems inconsistent.
During earlier versions of Minecraft monsters could track the player through
transparent blocks, but not through opaque. When a one-wide wall of glass/iron bars/stained glass/glass panes/vines/fences is located between myself and a hostile mob in 14w30c, the mob ignores me completely[in survival], even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall], it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. Zombies can locate villagers through any opaque or transparent block, but fail to do the same with the player. This seems inconsistent.During earlier versions of Minecraft monsters could track the player through blocks. When a one-wide wall of transparent blocks [glass/iron bars/stained glass/glass panes/vines/fences] is located between myself and a hostile mob in 14w30c, the mob ignores me completely [in survival] , even if all it has to do is walk two blocks around the wall in order to find me.
On the other hand, if I make a mob aware of my presence in survival [punching it, jumping so my head is visible over the transparent wall] , it will lock on to my position and will quite happily pathfind through a maze of opaque blocks in order to find me. Zombies can locate villagers through any opaque or transparent block, but fail to do the same with the player.
This ability for any aggro hostile mob to track a player despite blocks impeding line-of-sight is inconsistent with the mob not being aware of the player's presense through those same blocks when not aggro.
![[Mod] Torabi](../../../data/assets/gravatar/torabi.png){kind=small}
relates to
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
is duplicated by
![[Mod] Pokechu22](../../../data/avatars/users/92931.png){kind=small}
Confirmed in 17w43b
Still an issue in 1.12.2
Confirmed in 1.12.2-pre2
Confirmed in 1.12.1
![[Mod] Michael Wobst](../../../data/avatars/users/37868.png){kind=small}
Confirmed in 18w01a
Confirmed in 18w02a
Confirmed in 18w03a
Still an issue in 18w05a
Affects 18w21a
Greg Milson, ticket is yours now
os.name = Windows 8
os.version = 6.2
os.arch =amd64
java.version = 1.7.0_51
HostileMonsters cannot see through transparent blocks.Hostile mobs cannot see through transparent blocks
![[Mojang] Nathan Adams](../../../data/assets/gravatar/dinnerbone.png){kind=small}
is duplicated by
is duplicated by
![[Mod] tryashtar](../../../data/avatars/users/41963.png){kind=small}
is duplicated by
![[Mod] NeunEinser](../../../data/avatars/users/39263.png){kind=small}
relates to
![[Helper] Jack McKalling](../../../data/avatars/users/92859.png){kind=small}
![[Mod] Chandler](../../../data/assets/gravatar/triwonder81.png){kind=small}
is duplicated by
![[Helper] Johnibur](../../../data/avatars/users/28381.png){kind=small}
![[Mojang] Adrian Östergård](../../../data/assets/gravatar/nighter.jpeg){kind=small}
is duplicated by
![[Mod] j_p_smith](../../../data/avatars/users/92851.png){kind=small}
is duplicated by
![[Mod] GoldenHelmet](../../../data/avatars/users/18951.svg){kind=small}
relates to
![[Mod] ampolive](../../../data/avatars/users/18949.svg){kind=small}
is duplicated by
@Marcono1234
I think MC-3626 has more to do with the hostile mobs being unable to attack, or losing track of the player in vines/sugar canes in 1.4.5.
Remember when creepers/any hostile mob would hang outside the window, and follow you to the door? This bug MC-64370 in 14w30c almost reverses that behavior: hostile mobs can no longer see the player through a glass window, but once they lock on to the player, they will walk through vines and navigate opaque-block mazes straight to the player's position,
Thank you for your report!
However, this issue is a Duplicate of MC-64370.
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Duplicate of MC-64370
Duplicate of MC-64370
That problem could also relate to MC-64370
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-64370, which is a report that has not been resolved yet.
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Thank you for your report!
We're tracking this issue in MC-64370, so this ticket is being resolved and linked as a duplicate.
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Probably intentional per MC-64370.
![[Mod] markderickson](../../../data/avatars/users/18946.svg){kind=small}
This appears to be a duplicate of MC-64370.
The glass is blocking the monsters' view of the player; see MC-64370.
Maybe duplicates
MC-3626@Marcono1234
I think
MC-3626has more to do with the hostile mobs being unable to attack, or losing track of the player in vines/sugar canes in 1.4.5.Remember when creepers/any hostile mob would hang outside the window, and follow you to the door? This bug
MC-64370in 14w30c almost reverses that behavior: hostile mobs can no longer see the player through a glass window, but once they lock on to the player, they will walk through vines and navigate opaque-block mazes straight to the player's position,Including grass and double tall grass.
Related, but not exactly the same, since mobs can walk through the blocks listed in
MC-3626, and can't walk through other transparent blocks such as glass.This behavior has existed for as long as I remember, however. Only spiders could actually detect players through transparent blocks. Other mobs could continue to track players through transparent (and even solid) blocks if they had seen the player before, but couldn't actually spot them through any blocks.
Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases. If this has been done, we can reopen the issue.
Keep in mind that the "Resolved"-Status on this ticket just means "Answered", and that we are waiting for further information on whether this issue still exists or not. We will reopen it as soon as the requested information has been delivered.
Ticket resolved as incomplete, because no answer in a reasonable amount of time (1+ year), if it still happens, please update the ticket.
Reopened, see
MC-120313Confirmed for 1.13.1.
Confirmed for 1.16.1
Confirmed for 20w27a
Confirmed for 1.16.3
how is this WAI, this issue used to never occurred in the earlier versions.
If this issue did not occur in earlier versions, then the resolution should be changed from "Works As Intended" to "Won't Fix", no?
@ampolive it did have this behaviour previously. Mobs could see a player through transparent blocks.
And they still do so in bedrock edition.
@Pelle Reinke, @ampolive
As I stated in my original report, the issue is an inconsistency between mob behaviour when targeting a player, as opposed to when they aren't. Spiders could always target a player, if memory serves, because of their spider senses, but if I recall correctly, Mojang changed that due to how they would always get stuck between wall and ceiling, and pile up in a spidery surprise when caving. When zombie AI was modified to target villagers, the range by which they could locate villagers was utterly ridiculous, and they would traverse large mazes to find them. I think at one stage mobs would lose their target if their AI took them through tall grass, as well. It was an interesting issue at the time,, and I think it linked to creepers being able to dive-bomb players from heights, and skeletons changing their shooting habits when going around corners, as well.
All I can say is, I'm impressed that Greg Milson managed to keep the issue alive for six years, and that people are still interested.
Perhaps now the team are working on the Warden, and sound interaction, and other 'blind' mobs, they might be willing to take a look at this issue again.