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< meta charset = "utf-8" / >
< base href = "../../../" / >
< script src = "page.js" > < / script >
< link type = "text/css" rel = "stylesheet" href = "page.css" / >
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< h1 > 相机工具([name])< / h1 >
< p class = "desc" >
包含用于相机操作的有用实用函数的类。
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< h2 > 导入< / h2 >
< p >
[name] 是一个附加组件，必须显式导入。请参阅 [link:#manual/introduction/Installation Installation / Addons].
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< code >
import * as CameraUtils from 'three/addons/utils/CameraUtils.js';
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< h2 > 方法< / h2 >
< h3 > [method:undefined frameCorners]( [param:PerspectiveCamera camera], [param:Vector3 bottomLeftCorner],
[param:Vector3 bottomRightCorner], [param:Vector3 topLeftCorner], [param:boolean estimateViewFrustum] )< / h3 >
< p >
使用 [link:https://web.archive.org/web/20191110002841/http://csc.lsu.edu/~kooima/articles/genperspective/index.html
Kooima 广义透视投影公式].
注意：此功能忽略标准参数；在此之后不要调用 updateProjectionMatrix() ！
< / p >
< h2 > 源代码< / h2 >
< p >
[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/utils/CameraUtils.js examples/jsm/utils/CameraUtils.js]
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