The bug
in 21w10a the option smooth lighting looks different / worse than in 21w08b
21w08b:
[media]21w10a
[media]How to reproduce
Generate a flat world
Make a 20*20 platform above you e.g. by using /fill ~ ~25 ~ ~20 ~25 ~20 stone
Compare 21w10a with another version
❌ in 21w10a there is a bright ring around the dark square
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Comments 2
We are assuming the "bright ring" is the area immediately outside the darkest black square in the middle of the shadows.
This looks to be an optical illusion (same one as the checkerboard shadow illusion) as the shadow gradient fades to dark, but 1 block before the darkest point it plateaus to grey before suddenly turning dark, the human brain interprets this as the gradient suddenly turning "brighter" when its colour doesn't change.
Is the bright ring referring to the outer foggy effect?