- https://fabiensanglard.net/revisiting_the_businesscard_raytracer/index.html
- https://news.developer.nvidia.com/ray-tracing-essentials-part-1-basics-of-ray-tracing/
- Ray Tracing a Tiny Procedure Planet
- https://alain.xyz/blog/raytracing-denoising
- https://news.ycombinator.com/item?id=20828751
- Tiny Ray Tracer
- Part I: Raytracing - Gabriel Gambetta
- Ray Tracing in Excel
- C++ vs OCaml: Ray tracer comparison
- Photorealistic Path Tracer
- Ray-Strips: A Compact Mesh Representation for Interactive Ray Tracing
- http://www.realtimerendering.com/blog/an-introduction-to-ray-tracing-is-now-free-for-download/
- https://tmcw.github.io/literate-raytracer/
- http://psgraphics.blogspot.com/2017/12/rendering-moon-sun-and-sky.html
- Webassembly Raytracer
- A reasonably speedy Python ray-tracer
- http://mrl.nyu.edu/~perlin/raytrace1_breakdown/
- A minimal raytracer
- Back to Ray Tracing
- https://raytracing.github.io/books/RayTracingInOneWeekend.html
- New mini-book: Ray Tracing in One Weekend
- https://github.com/mebmichael/InOneWeekendSwift - Swift port
- https://github.com/Ceroce/SwiftRay - Swift port - Swift port
- http://mhorga.org/2016/03/21/ray-tracing-in-a-swift-playground.html - Swift port
- Building a Ray-Tracing 3D Renderer from Scratch
- Deciphering the Business Card Raytracer
- smallpt: Global Illumination in 99 lines of C++
- GPU Ray Tracing The Wrong Way
- Raytracer.el: a raytracer in Emacs Lisp