I found this tutorial was a good overview for both the Metropolis algorithm and for Metropolis Light Transport: https://facweb.cs.byu.edu/graphics/publications

I found this tutorial was a good overview for both the Metropolis algorithm and for Metropolis Light Transport: https://facweb.cs.byu.edu/graphics/publications/metropolisTutorial.pdf https://facweb.cs.byu.edu/graphics/publications/metropolisTu...