I don't think the light is supposed to look like this.
Affected blocks:
Respawn anchor (1, 2 or 3 charges)
Redstone ore (when lit)
Crying obsidian
Furnace (when lit, very subtly yellow)
Blast Furnace (when lit, very subtly yellow)
Smoker (when lit, very subtly yellow)
Related issues
clones
is duplicated by
MC-173155
Crying obsidian dramatically darkens blocks around it on low brightness settings
MC-194820
Respawn anchors at low charges darken the surrounding blocks on low brightness settings
MC-194821
Lit furnace, blast furnace and smoker shadows on low brightness settings are slightly yellow
MC-197006
Respawn Anchor charged with one Glowstone actually dims its neighbourhood, instead of emitting light.
relates to
testing discovered
Attachments
Comments
migrated
slicedlime
I cannot reproduce this on 1.14.4 or 19w38b. What is required for this to happen? Is it only a problem in certain lighting conditions?
muzikbike
I'll check more thoroughly when I get home but the world is a custom superflat with white concrete roughly within the y=20-30 range and created in the early 1.14 snapshots. If I can't reproduce this on other worlds I'll upload the world file (assuming it isn't too big).
muzikbike
Can reproduce on a freshly created superflat world with the following preset:
minecraft:bedrock,20*minecraft:dirt,minecraft:white_concrete;minecraft:the_void;village
Brightness at or close to Moody.
wobst.michael
Yep. Can be reproduced quite easy with the aforementioned reproduction steps.
slicedlime
Great, thank you!
pulpetti
Also affects 1.16.1
muzikbike
no prob
GeForceLegend
This is caused by ambient occlusion of emitting opaque blocks are achieved by modifing smoothed skylight. This can be easily seen when loading with Optifine and a shaderpack. Lots of shader features uses skylight, for example, puddles in rainy weather. You can see there is no puddles near these blocks.
And for emitting opaque blocks with light level less than 14, their ambient occlusion seems also modify smoothed block light map. Smoothed block light of pixels near them can even drop to 1 (since this is smoothed light map in rendering, the light value in F3 screen is normal).
Avoma
Can confirm in 21w06a.
Avoma
Can confirm in 1.16.5 and 21w08b.
migrated
Can confirm in 21w15a.
bodakugga
Could this be fixed by simply making light emitting blocks NOT cast shadows onto other blocks? That was their behavior in versions from beta 1.3 (smooth lighting added) to beta 1.7.3, and got broken in beta 1.8, when the lighting engine was changed.
Avoma
Can confirm in 1.18.2 and 1.19 Pre-release 4.
Avoma
Can confirm in 1.19.2.