Understanding the Efficiency of Ray Traversal on GPUs

@InProceedings{Aila2009hpg,
  author =    {Timo Aila and Samuli Laine},
  title =     {Understanding the Efficiency of Ray Traversal on GPUs},
  booktitle = {Proc. High-Performance Graphics 2009},
  pages =     {145--149},
  year =      {2009},
}