<title>env_gradient_fog</title> # env_gradient_fog Specifies fog based on a color gradient. ⤶ ### Keyvalues⤶ ⤶ In code, it is defined in the `GradientFogEntity.cs` file under `addons\base\code\Entity\Hammer\Effects`.⤶ ⤶ ## Keyvalues⤶ **Name (`targetname`)** >* The name that other entities refer to this entity by. **Tags (`tags`)** >* A list of general purpose tags for this entity, for interactions with other entities such as triggers. **Fog Enabled (`fogenabled`)** **Fog Start Distance (`fogstart`)** **Fog End Distance (`fogend`)** **Fog Start Height (`fogstartheight`)** **Fog End Height (`fogendheight`)** **Fog Maximum Opacity (`fogmaxopacity`)** >* Set the maximum opacity at the base of the gradient fog. **Fog Color (R G B) (`fogcolor`)** >* Set the gradient fog color. **Fog Strength (`fogstrength`)** **Distance Falloff Exponent (`fogfalloffexponent`)** >* Exponent for distance falloff. **Vertical Falloff Exponent (`fogverticalexponent`)** >* Exponent for vertical falloff. **Fade Time (`fadetime`)** >* How much time it takes to fade in new values.