Method intersect

benchmark/bench/raytracer.java:44–49

(Hit i, Ray ray)

            return (t1 > 0 ? t1 : t2);
        }
        public Hit intersect(Hit i, Ray ray) {
            double l = ray_sphere(ray);
            if (l >= i.lambda) return i;
            Vec n = add(ray.orig, sub(scale(l, ray.dir), center));
            return new Hit(l, unitise(n));
        }
    }
    class Group extends Scene {
        public Sphere bound;