The shade of the light have some many lines in between the level of loghts from each reflected loght?
It's that a bug?
Without using any Texture Pack & Mods
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Can confirm in 1.21.2, although i'm pretty sure its a duplicate.
Steps to reproduce:
Create a new world with cheats enabled.
Run the following commands in an order:
/fill ~-1 ~-1 ~-1 ~8 ~2 ~1 quartz_block hollow /setblock ~8 ~1 ~ ochre_froglight
Set your brightness to the lowest it can go and look at the wall. Notice that ambient occlusion shadow gradient is not smooth on "Moody" brightness.
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