This is awesome! One thing I really appreciate is building up the mathematical concepts. For example, instead of providing a ray-sphere intersection formula, th

This is awesome! One thing I really appreciate is building up the mathematical concepts. For example, instead of providing a ray-sphere intersection formula, the tutorial talks about representing a ray and a sphere, and how the two representations must match at intersection points. When I was asked to teach a workshop on computer graphics, I wanted to make the concepts accessible to those who were either rusty, or hadn't even encountered the necessary math. Given a limited amount of teaching time, I introduced only the most relevant math, but did so from first principles. Hopefully my treatment can be useful to others: https://avik-das.github.io/build-your-own-raytracer https://avik-das.github.io/build-your-own-raytracer