This repository had been used for experimental purposes, and its fade-to-skybox functionality has been merged to KinoFog. I've stopped updating this repository, and thus it's recommended to use KinoFog instead of this when you need its functionality.
FedeToSkybox - Description
A variant of the global fog shader, which fades to a skybox instead of a constant color.
Standard global fog (left) vs. fade-to-skybox fog (right)