Jul 25, 2013: Initial slides and course notes.
Jul 30, 2013: Updated Dimitar Lazarov's slides.
Aug 05, 2013: Corrected the calculation of centerToRay in Equation 13 of Brian Karis' course notes – it was inverted.
(Credit: Sébastien Hillaire.)
Also updated Equation 10 to use a better constant (closer match to the ground truth).
Sep 02, 2013: Updated Zap Andersson's slides (fixed Powerpoint metadata, corrected typos, generated PDF with notes).
Feb 21, 2014: Added Naty Hoffman's course notes and Mathematica notebook.
May 12, 2018: Updated link to Ready At Dawn's supplemental code.