Currently: Fog applied only to parts but sky is unaffected, which means you still see the silhouette of the parts, which looks stupid if there is a noticeable amount of fog. Its also impossible to match the fog color to the skybox color so you cant get good looking fog no matter what.
Ideally: Sky completely unvisible (if you cant see parts, how would you see them clouds???). Sun would shine through as a blurry bright spot. Toward the sky might be brighter overall.
You can simply replace the skybox with something more appropriate to your foggy weather.
this doesn’t work if the fog color changes.
My solution has always been a giant inverted sphere mesh that encompasses the map, but it would be dandy if I didn’t have to do that. I know I’m certainly not going create a million different skyboxes to match different fog colors and shades.
This could be solved by allowing us to set the sky to a single Color3 value. Then we could have changing fog colours and so on without having to use sphere meshes or make multiple decals.