public static void SetAnimationCullingMode(GameObject gameObj, AnimationCullingType cullingType)
 {
     if (null != gameObj.animation)
     {
         gameObj.animation.cullingType = cullingType;
     }
     for (int i = 0; i < gameObj.transform.childCount; i++)
     {
         NkUtil.SetAnimationCullingMode(gameObj.transform.GetChild(i).gameObject, cullingType);
     }
 }