private void Start()
 {
     meshVisualizer         = GetComponent <ARFaceMeshVisualizer>();
     meshVisualizer.enabled = false;
     renderer         = GetComponent <MeshRenderer>();
     renderer.enabled = false;
 }
    public void SaveMesh()
    {
        ARFaceMeshVisualizer arFaceMeshVisualizer = FindObjectOfType <ARFaceMeshVisualizer>();

        if (!arFaceMeshVisualizer)
        {
            Debug.Log("Could not find face mesh visualizer");
            return;
        }
        SerializableFaceGeometry sfg = new SerializableFaceGeometry(arFaceMeshVisualizer.mesh);
        var    jsonMesh = JsonUtility.ToJson(sfg);
        string filePath = Application.persistentDataPath + "/savedFaceMesh.json";

        File.WriteAllText(filePath, jsonMesh);
    }