Is your feature request related to a problem? Please describe.

In vanilla, circular fog shape is not supported on non-NVIDIA GPUs because of the usage of gl_NV_fog_distance. This results in a linear fog start on both terrain and clouds. Also the skybox is changed to be linear-shaped in order to be consistent with the fog.

Sodium enables circular fog on terrain, but clouds fog and skybox still remain linear. This gives an inconsistent look.

Describe the solution you'd like

Add circular fog to clouds. and change the skybox to the way they look while using NVIDIA cards.

This should not be an issue on 1.17+, where everything uses spherical fog.

I've noticed this also happens with mobs and other entities such as paintings, minecarts, and signs. In versions with togglable fog, entities are still affected and often show up as blank outlines obstructing terrain.