@article{wu2019accurate,
  title = {Accurate Appearance Preserving Prefiltering for Rendering Displacement-Mapped Surfaces},
  author = {Wu, Lifan and Zhao, Shuang and Yan, Ling-Qi and Ramamoorthi, Ravi},
  journal = {ACM Transactions on Graphics (Proceedings of SIGGRAPH 2019)},
  year = {2019},
  volume = {38},
  number = {4}
}