This is my attempt at Ray Tracing in One Weekend in F#. It follows a similar structure to the original with no new features or abstractions.
This image was created at 1280x720 at 256 samples per pixel. It took 4 minutes 50 seconds to run on my machine (Ryzen 9 7940HS, Windows 11) on a release build. A simple scene with 4 spheres renders in ~3 seconds.
This project can be run with the dotnet run command from the .NET SDK.