Daily Pathtracer 9: A wild ryg appears

Introduction and index of this series is here. In the previous post, I did a basic SIMD/SSE implementation of the “hit a ray against all spheres” function. And then of course, me being a n00b at SIMD, I did some stupid things (and had other inefficiencies I knew about outside the SIMD function, that I planned to fix later). And then this happened: You used the ultimate optimization technique: nerd sniping rygorous into doing it for you =) (via)