[name]
		This class contains the parameters that define exponential fog, i.e., that grows exponentially denser with the distance.
		Constructor
		[name]( [page:Integer hex], [page:Float density])
		The hex parameter is passed to the [page:Color] constructor to set the color property.  Hex can be a hexadecimal integer or a CSS-style string.
		Properties
		[property:String name]
		Default is the empty string.
		[property:Color color]
		Fog color. Example: If set to black, far away objects will be rendered black.
		[property:Float density]
		Defines how fast the fog will grow dense.
		Default is 0.00025.
		Methods
		
		[method:FogExp2 clone]()
		Returns a copy of this.
		Source
		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]