devNotes 7-22-16 nature

 

        public Vector3 CatmullRom(float t, Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3)
        {
            Vector3 a = 0.5f * (2f * p1);
            Vector3 b = 0.5f * (p2 - p0);
            Vector3 c = 0.5f * (2f * p0 - 5f * p1 + 4f * p2 - p3);
            Vector3 d = 0.5f * (-p0 + 3f * p1 - 3f * p2 + p3);

            Vector3 pos = a + (b * t) + (c * t * t) + (d * t * t * t);

            return pos;
        }