1. The Monte Carlo method;Howell,2020
2. Physically based rendering: From theory to implementation;Pharr,2016
3. A comprehensive framework for rendering layered materials;Jakob;ACM Trans Graph (Proceedings of SIGGRAPH),2014
4. Multiple-scattering microfacet BSDFs with the Smith model;Heitz;ACM Trans Graph,2016
5. Position-free Monte Carlo simulation for arbitrary layered BSDFs;Guo;ACM Trans Graphics (ToG),2018