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20 hours ago •
infancy
infancy
single file, pbrt style, educational ray tracing renderer🖼️
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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...
