[Unity菜鸟] 射线

1. 射线用 Physics.Raycast 都可以判断，用 collider.Raycast 只在某些(不明)情况下可以

 void Update()
    {
        Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;
        // if (collider.Raycast(ray, out hit, 100f))
        if (Physics.Raycast(ray,out hit ,100f))
        {
            Debug.DrawLine(ray.origin, hit.point);
            Debug.Log(hit.collider.gameObject.name+" "+Time.fixedTime);
        }
    }