A while ago I worked through Ray Tracing in One Weekend by Peter Shirley which is a really approachable introduction to ray tracing. I learned recently of a related series of books called Game Physics in One Weekend by Gregory Hodges. I read the first book and implemented the solution in Swift Playgrounds to test out an app framework and renderer I’ve written. The book is as comprehensive as its ray tracing predecessor, and the material was explained very clearly. I find the resulting simulation very satisfying to watch!