非常感谢，改成(intersect(Ray(hitPoint, ws)).distance – lightInter.distance) > EPSILON;有画面了，但是我有点不理解，bool block = (intersect(Ray(hitPoint, ws)).coords – lightInter.coords).norm() > EPSILON;我理解这个指两个交点有距离，为啥这个不能代表光线被其他物体挡住了呢？
另外画面变成了这样，能帮忙分析一下可能是啥问题么？
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