Sending phone rotation via a SyncVar, I must be missing something here?

Hey all

I'm trying to make a small project where a phone build should send its device orientation to the editor, to simulate VR headmovement. Its just to have an ease-of-use way of testing builds without putting your phone in the google cardboard, gearvr or whatever.

I decided to try and send the device orientation via a Vector3 SyncVar, but nothing happens on the receiving end. I set up the phone to act as a server, and the editor to act as a client (SyncVars go from server->client).

I double checked the device gyro output, and it reads just fine on the phone build, but isnt coming across the network. I just tagged my orientation variable with [SyncVar] and the each frame I update that value with the gyro readings.
I see the "Connected to server" message, so I'm assuming theres an actual connection.

Another solution would be to use OnSerialize/OnDeserialize, but the OnSerialize function doesnt seem to exist? Using Unity 5.3.4.
What am I missing here?

code below

Code (CSharp):

1. using UnityEngine;
2. using UnityEngine.Networking;
3. using System.Collections;
4.  
5. public class MyNetworkManager : NetworkBehaviour {
6.  
7.     public bool isAtStartup = true;
8.     private bool serverMode = false;
9.  
10.     private bool serverRunning = false;
11.  
12.     NetworkClient myClient;
13.  
14.     [SyncVar(hook ="OnRotChange")]
15.     public Vector3 phoneOrientation;
16.  
17.     // Use this for initialization
18.     void Start () {
19.  
20.         Input.gyro.enabled = true;
21.  
22.     }
23.  
24.     void OnRotChange(Vector3 rot)
25.     {
26.         Debug.Log("new value: "+rot);
27.     }
28.  
29.  
30.  
31.     // Update is called once per frame
32.     void Update () {
33.  
34.         if (isServer)
35.         {
36.             SyncPhoneRotationData();
37.         }
38.  
39.     }
40.  
41.     void SyncPhoneRotationData()
42.     {
43.         phoneOrientation = Input.gyro.attitude.eulerAngles;    
44.     }
45.  
46.     void OnGUI()
47.     {
48.         if (isAtStartup)
49.         {
50.             if (GUI.Button(new Rect(10,10,100,100),"Phone server"))
51.             {
52.                 SetupServer();
53.             }
54.  
55.             if (GUI.Button(new Rect(10, 120, 100, 100), "Desktop client"))
56.             {
57.                 SetupClient();
58.             }
59.         }
60.     }
61.  
62.     // Create a server and listen on a port
63.     public void SetupServer()
64.     {
65.         NetworkServer.Listen(4444);
66.         isAtStartup = false;
67.         serverMode = true;
68.     }
69.  
70.     // Create a client and connect to the server port
71.     public void SetupClient()
72.     {
73.         myClient = new NetworkClient();
74.         myClient.RegisterHandler(MsgType.Connect, OnConnected);
75.         myClient.Connect("192.168.1.71", 4444);
76.         isAtStartup = false;
77.     }
78.  
79.     // Create a local client and connect to the local server
80.     public void SetupLocalClient()
81.     {
82.         myClient = ClientScene.ConnectLocalServer();
83.         myClient.RegisterHandler(MsgType.Connect, OnConnected);
84.         isAtStartup = false;
85.     }
86.  
87.     // client function
88.     public void OnConnected(NetworkMessage netMsg)
89.     {
90.         Debug.Log("Connected to server");
91.     }
92. }
93.  

 

So it seems I need to add a [Command] method to trigger the sending of this. As what I'm trying to do is stream data every frame, I guess I should not use SyncVars and look into OnSerialize instead.