Xiaomx
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Xiaomx
 node 20.9.0 npm 10.1.0
在透视相机的构造函数中有这样两行代码: `right = Normalize(Cross(front, up)) * tan_fov * Aspect();` `this->up = Normalize(Cross(right, front)) * tan_fov;` 请问,在构造 `right`、` up`时,为什么还有乘以 `tan_fov` 和 `Aspect()` 呢? PS :我看过 ray tracing in one weekend 和...