@article{ihrke2007eikonalrendering,
  title = {Eikonal Rendering: Efficient Light Transport in Refractive Objects},
  author = {Ihrke, Ivo and Ziegler, Gernot and Tevs, Art and Theobalt, Christian and Magnor, Marcus and Seidel, Hans-Peter},
  journal = {{ACM} Transactions on Graphics},
  volume = {26},
  number = {3},
  month = {Jul},
  year = {2007}
}