public Vector getPoint(Vector p0,Vector p1,Vector p2,Vector p3,float x)
{
    Vector ans = new Vector ();

    Vector p0t = new Vector (p0);
    Vector p1t = new Vector (p1);
    Vector p2t = new Vector (p2);
    Vector p3t = new Vector (p3);
    float c3;
    float c2;
    float c1;
    float c0;

    c3 = (2 * x * x * x) - (3 * x * x) + 1;
    c2 = (x * x * x) - (2 * x * x) + x;
    c1 = (-2 * x * x * x) + (3 * x * x);
    c0 = (x * x * x) - (x * x);

    p0t.multiply (c3);
    p1t.multiply (c1);
    p2t.multiply (c2);
    p3t.multiply (c0);

    ans.add (p0t);
    ans.add (p1t);
    ans.add (p2t);
    ans.add (p3t);

    return ans;
}

public void renderCurve()
{
    Vector p0,p1,p2,p3,p;
    for (int i = 0; i < points.Length; i = i + 4)
    {
        p0 = new Vector (points[i].x,points[i].y,points[i].z);
        p1 = new Vector (points[i + 1].x,points[i + 1].y,points[i + 1].z);
        p2 = new Vector (points[i + 2].x,points[i + 2].y,points[i + 2].z);
        p3 = new Vector (points[i + 3].x,points[i + 3].y,points[i + 3].z);
        for (float t = 0; t <= 1; t = (t + Time.deltaTime * 10))
        {
            p = hermite.getPoint (p0,p1,p2,p3,t);
            GameObject pobj = Instantiate (pointObject, new Vector3(p.x,p.y,0.0f), Quaternion.identity) as GameObject;
        }
    }
}