This isn't really to do with raytracer perf. It's about how Miguel de Icaza (The creator of Mono) improved Mono's float handling. The difference in raytracer pe

This isn't really to do with raytracer perf. It's about how Miguel de Icaza (The creator of Mono) improved Mono's float handling. The difference in raytracer perf on different .net runtimes is just what brought the poor float handling to his attention. Better mono float handling is a good outcome for lots of non raytracer scenarios. If you read the linked blog about the ray tracer, the C# ports are just blog 3 in a series of 8 that does actually conclude with two posts on SIMD - https://aras-p.info/blog/2018/03/28/Daily-Pathtracer-Part-0-Intro/ https://aras-p.info/blog/2018/03/28/Daily-Pathtracer-Part-0-...