Unity Catmull ROM curve

Catmull-Rom It can smoothly pass through all flag points .

public static Vector3 CatmullRomPoint(Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3, float t)
{
    return p1 + (0.5f * (p2 - p0) * t) + 0.5f * (2f * p0 - 5f * p1 + 4f * p2 - p3) * t * t +
            0.5f * (-p0 + 3f * p1 - 3f * p2 + p3) * t * t * t;
}