Some good information about lumen ue5

https://www.bilibili.com/video/BV1fu411272a?from=search&seid=11920135527223422743&spm_id_from=333.337.0.0

There are also some good posts on Zhihu. I will add them here later.

Some of ue4
https://unrealartoptimization.github.io/book/
https://zhuanlan.zhihu.com/p/401451657
https://zhuanlan.zhihu.com/p/368275305
https://zhuanlan.zhihu.com /p/47193069