I have a question, please help and thanks! I want to know how to show the Angle information(degree) between AR camera and target object on a plane. (Using Smartphone) And I want to know how to "code" with Unity and AR Foundation.

I tried using some code(below), but it seems only work on Distance, not work on Angle...

Thank again!

void Start ()
{
    //get the components
    private ARRaycastManager RayManager;
    private GameObject visual;
    public Camera CameraStart;
    public Text textField2;
    public Text textField;
    float distance;
    float angle;
    RayManager = FindObjectOfType<ARRaycastManager>();
    visual = transform.GetChild(0).gameObject;
}


void Update ()
{
    // shoot a raycast from the center of the screen
    List<ARRaycastHit> hits = new List<ARRaycastHit>();
    RayManager.Raycast(new Vector2(Screen.width / 2, Screen.height / 2), hits, TrackableType.Planes);

    RaycastHit hit;
    //Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

    // check if we hit an AR plane, update the position and rotation 
    if(hits.Count > 0)
    {
        transform.position = hits[0].pose.position;
        transform.rotation = hits[0].pose.rotation;
        distance = Vector3.Distance(CameraStart.transform.position, transform.position);
        textField.text = distance.ToString("N2") + "meter"; 

        Physics.Raycast(transform.position, out hit);
        angle = Vector3.Angle(hit.normal, transform.forward);            
        textField2.text = angle.ToString("N2") + "degree";

        if(!visual.activeInHierarchy)
        visual.SetActive(true);
            
    }
}

}