There are a few around. https://raytracing.github.io/books/RayTracingInOneWeekend.html https://raytracing.github.io/books/RayTracingInOneWeekend.ht... https:/

There are a few around. https://raytracing.github.io/books/RayTracingInOneWeekend.html https://raytracing.github.io/books/RayTracingInOneWeekend.ht... https://graphicscodex.courses.nvidia.com/app.html https://graphicscodex.courses.nvidia.com/app.html https://www.gabrielgambetta.com/computer-graphics-from-scratch/index.html https://www.gabrielgambetta.com/computer-graphics-from-scrat... I can vouch for the first two as being good. I haven't actually looked at the third but I found I had a bookmark for it.