Basically. If you build a glass house underwater and put a sponge in it to remove all the water.when you see through the Glass.The underwater fog disapears but the lightning is still there

https://github.com/user-attachments/assets/a63b8b0c-5e5f-4e65-8495-e9099b559192
https://github.com/user-attachments/assets/0765525d-f101-48a4-8e1e-9a135a894162

This might happen mostly because Iris version wasn't optimized for Bliss yet and should be in optifine

no, it's exactly as the comment above your's says. it's just sodium lacking a feature, which is coming in sodium v0.6+ so it's not much of a problem.

That happens because Iris does not have Alpha Sorting so it is not possible for Bliss to fix this at the moment. Future versions of Iris are expected to come with Alpha Sorting turning this bug fixable.

Hi, i am not very fluent with the shader technical stuff, but is this the same bug that will be fix in sodium v0.6+ ?
Thx four your answer =)

yes, sodium 0.6 or newer will not have this problem anymore.