Grand Theft Auto: The Trilogy (San Andreas) "Return of the Mist".
Atmospheric fog has returned to the open world of Grand Theft Auto: San Andreas. A new modification for the remaster adds a fog effect to the game. The mod is based on the Reshade preset and includes additional custom presets. The mod was made for San Andreas, however it should work with the entire trilogy.
Installation:
Move the preset to the game folder.
Launch Reshade and select your game.
In the game and press the "Home" key, in the upper right corner, press "+" and select the installed preset.