public static int GetStencilID(GameObject obj)
{
int num = 0;
Transform transform = obj.transform;
Transform y = TMP_MaterialManager.FindRootSortOverrideCanvas(transform);
if (transform == y)
{
return(num);
}
Transform parent = transform.parent;
List <Mask> list = TMP_ListPool <Mask> .Get();
while (parent != null)
{
parent.GetComponents <Mask>(list);
for (int i = 0; i < list.Count; i++)
{
Mask mask = list[i];
if (mask != null && mask.MaskEnabled() && mask.graphic.IsActive())
{
num++;
break;
}
}
if (parent == y)
{
break;
}
parent = parent.parent;
}
TMP_ListPool <Mask> .Release(list);
return(Mathf.Min((1 << num) - 1, 255));
}