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<!DOCTYPE html>
< html lang = "zh" >
< head >
< meta charset = "utf-8" / >
< base href = "../../../" / >
< script src = "page.js" > < / script >
< link type = "text/css" rel = "stylesheet" href = "page.css" / >
< / head >
< body >
< h1 > 雾-指数（[name]） < / h1 >
< p class = "desc" > 该类所包含的参数定义了指数雾，它可以在相机附近提供清晰的视野，且距离相机越远，雾的浓度随着指数增长越快。< / p >
< h2 > 代码示例< / h2 >
< code >
const scene = new THREE.Scene();
scene.fog = new THREE.FogExp2( 0xcccccc, 0.002 );
< / code >
< h2 > 构造器< / h2 >
< h3 > [name]( [param:Integer color], [param:Float density] )< / h3 >
< p > 颜色参数传入[page:Color]构造函数中， ， < / p >
< h2 > 属性< / h2 >
< h3 > [property:Boolean isFogExp2]< / h3 >
< p >
只读属性，用于检查给定对象是否为[name]类型。
< / p >
< h3 > [property:String name]< / h3 >
< p > 对象的名称，可选、不必唯一。默认值是一个空字符串。< / p >
< h3 > [property:Color color]< / h3 >
< p > 雾的颜色。比如说，如果将其设置为黑色，远处的物体将被渲染成黑色。< / p >
< h3 > [property:Float density]< / h3 >
< p > 定义雾的密度将会增长多块。< / p >
< p > 默认值是0.00025.< / p >
< h2 > 方法< / h2 >
< h3 > [method:FogExp2 clone]()< / h3 >
< p > 返回一个具有和当前雾参数相同的新的FogExp2实例。< / p >
< h3 > [method:Object toJSON]()< / h3 >
< p > 以JSON格式返回FogExp2的数据。< / p >
< h2 > 源代码< / h2 >
< p >
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
< / p >
< / body >
< / html >