ray-tracer

Implementation of a ray tracer following the ray tracing in a X books.

TODO:

• The optimisation in 3.10 in "Ray tracing the next week"
• Lesson 5 of "Ray tracing the next week"
• All of "Ray tracing the rest of your life"

Other ideas I had:

• Improve my logging system to make it easier to debug issues
• Experiment with different diffuse implementations, for example one based on the lambertian material that occasionally absorbs instead of always reflecting.
• Use gif-h or msf_gif to generate gifs rather than just static images.
• Feels like there is some unexpected grainy-ness in the middle?
• Implement a tostring (overload of <<) for every class
• Update to v4 of the book, some changes I seem to notice are:
  • Image origin is top left instead of bottom right.
  • The pixel grid is inset in the viewport.
  • A pixel is a disk instead of a square? see pixel_sample_disk in the github source.
  • Potentially different depth of field implementation?