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<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>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,来设置颜色属性。颜色可以是一个十六进制的整型数,或者是CSS风格的字符串。</p>
<h2>属性</h2>
<h3>[property:Boolean isFogExp2]</h3>
<p>
Read-only flag to check if a given object is of type [name].
</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]
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