Формула сглаживания высоты точек в кругу

Vector3 CalculateBezierPoint(float t, Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3)
{
    float u = 1 – t;
    float tt = t*t;
    float uu = u*u;
    float uuu = uu * u;
    float ttt = tt * t;
 
    Vector3 p = uuu * p0;    //first term
    p += 3 * uu * t * p1;    //second term
    p += 3 * u * tt * p2;    //third term
    p += ttt * p3;           //fourth term
 
    return p;
}

p0 = CalculateBezierPoint(0, p0, p1, p2, p3);
p1 = CalculateBezierPoint(0.333, p0, p1, p2, p3);
p2 = CalculateBezierPoint(0.666, p0, p1, p2, p3);
p3 = CalculateBezierPoint(1, p0, p1, p2, p3);

    void Test1() {
        Vector3 p0 = new Vector3(0, 0, 0);
        Vector3 p1 = new Vector3(1, 1, 0);
        Vector3 p2 = new Vector3(2, 0, 0);
        Vector3 p3 = new Vector3(3, 1, 0);
 
        Vector3 p0_2 = this.CalculateBezierPoint(0, p0, p1, p2, p3);
        Vector3 p1_2 = this.CalculateBezierPoint(0.333f, p0, p1, p2, p3);
        Vector3 p2_2 = this.CalculateBezierPoint(0.666f, p0, p1, p2, p3);
        Vector3 p3_2 = this.CalculateBezierPoint(1, p0, p1, p2, p3);
 
        Debug.Log("p0_2 = " + p0_2);
        Debug.Log("p1_2 = " + p1_2);
        Debug.Log("p2_2 = " + p2_2);
        Debug.Log("p3_2 = " + p3_2);
    }
 
    Vector3 CalculateBezierPoint(float t, Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3) {
        float u = 1 - t;
        float tt = t*t;
        float uu = u*u;
        float uuu = uu * u;
        float ttt = tt * t;
    
        Vector3 p = uuu * p0;    //first term
        p += 3 * uu * t * p1;    //second term
        p += 3 * u * tt * p2;    //third term
        p += ttt * p3;           //fourth term
    
        return p;
    }