Function random_in_unit_sphere

examples/cuda/gpu/path_tracer_gpu/src/math.rs:24–32

(state: &mut DefaultRand)

}

pub fn random_in_unit_sphere(state: &mut DefaultRand) -> Vec3 {
    loop {
        let p = random_snorm_vec(state);
        if p.magnitude_squared() >= 1.0 {
            continue;
        }
        return p;
    }
}

pub fn reflect(v: Vec3, n: Vec3) -> Vec3 {
    v - 2.0 * v.dot(n) * n