Плавная смена цветов для объекта

{ 
// Start is called before the first frame update 
void Start() 
{ 
StartCoroutine(SmoothColor(my_go.GetComponent<Renderer>(), Color.white, Color.green, timeOfChangeInSeconds)); 
} 
 
// Update is called once per frame 
void Update() 
{ 
Ienumerator SmoothColor (Renderer rend; Color startColor, endColor; float time) 
{ 
float currTime = 0f; 
rend.material.color = startColor; 
do 
{ 
rend.material.color = Color.Lerp(rend.material.color, endColor, currTime / time); 
currTime += Time.deltaTime; 
yield return null; 
} while (currTime <= time); 
} 
} 
}

    void Start()
    {
        StartCoroutine(SmoothColor(my_go.GetComponent<Renderer>(), Color.white, Color.green, timeOfChangeInSeconds));
    }
 
    IEnumerator SmoothColor(Renderer rend, Color startColor, Color endColor, float time)
    {
        float elapsedTime = 0.0f;
 
        rend.material.color = startColor;
 
        while (elapsedTime <= time)
        {
            rend.material.color = Color.Lerp(startColor, endColor, elapsedTime / time);
 
            elapsedTime += Time.deltaTime;
 
            yield return null;
        }
    }