Computational Complexity, Ray Tracing, Resident Evil, Photorealistic Rendering, Csc250 S20.
Tygar, and Atsumasa Yoshida. 1994. Computability and complexity of ray tracing. Discrete Comput Geom 11 (Mar. 1994), 265–288. DOI: https://doi.org/10.1007/BF02574009 [6]: Paul E. Black. (December 17 2004). Dictionary of Algorithms and Data Structures.