Mod cancelled. 1.2 and 1.3 will continue to be available and assets from the new version will be available once cleaned up.
Shader by OGSE & Sky4CE. Orginally for Clear Sky, works great in CoP (though like I mentioned in my news post, I'd prefer to get Cook-Torrance lighting correctly working instead).
It's subtle but look at the difference on the floor, and notice how it doesn't get as over-bright (which is one main fix it has).