Clouds look a little weird when you're looking at them through any glass or glass pane or water.
Without glass:
Looking at it through glass:
Steps to reproduce:
Create a New world, Enter world with a PBR resource pack enabled that supports water & glass properly, such as Nvidias Crystal palace resource pack.
Place some Glass
Look at Clouds through glass
Expected results:
Cloud looks similar to if It's not seen through glass.
Observed results:
Weird dots appear.
I also confirmed It happens with any fog configuration that affects clouds.
Also: Glass texture should be transparent enough so you can see through it properly.
Other notes:
It seems It's a general thing about Refraction, as the same bug happens when you look at clouds through water, here is screenshots of bug happening with Water:
Zoomed in:
Another example of water:
Steps to reproduce it for water:
Create a New world, Enter world with a PBR resource pack enabled that supports water & glass properly, such as Nvidias Crystal palace resource pack.
Go under water
Look at clouds
You'll see the same bug that happens with Glass/glass pane.
Affects beta 1.18.20.21