Vector3D.Reflect C# (CSharp) Метод

    public static Vector3D Reflect(Vector3D inDirection, Vector3D inNormal)
    {
        return -2f * Vector3D.Dot (inNormal, inDirection) * inNormal + inDirection;
    }

        public void Reflect()
        {
            var v = new Vector3D(1, 1, 1);

            Assert.AreEqual(v, v.Reflect(new Vector3D(0, 0, 0)));
            Assert.AreEqual(new Vector3D(1, -1, 1), v.Reflect(new Vector3D(0, 1, 0)));
        }