Done!
Here is my Visibility Mod with fixed clouds dome by Seeadler:
http://www.mp-labs.com/sh3mods/visibility_mod_v092.zip
There are 2 directories on it:
- One with the word 'fog'. This is the version with realistic visibility while underwater.
- The other with the words 'nofog'. This is the version with game default underwater fog.
Both of them have the cloud texture coordinates fixed.
Thanks again, Seeadler.