卷积 和 光线相位差等

https://www.cnblogs.com/yymn/p/4661898.html

 

https://www.zhihu.com/question/22298352/answer/228543288

 

https://zhuanlan.zhihu.com/p/41212352

 

https://blog.csdn.net/chaipp0607/article/details/72236892

 

https://blog.csdn.net/zouxy09/article/details/49080029

 

好网站：！！

https://graphics.stanford.edu/