Unity3D+PlayFab+Photon：玩家加入房间后无法互相可见

Hey there! Let's work through this issue where your players are joining the same room but can't see one another. This is a super common roadblock once you get the basic room setup working, so let's break down the most likely fixes step by step:

1. Make Sure You're Using PhotonNetwork.Instantiate (Not Regular Instantiate) #

This is the #1 reason players can't see each other. Regular Instantiate() only creates objects locally—other players in the room won't get that data. You must use Photon's instantiation method to sync objects across all clients:

void OnJoinedRoom()
{
    // Load your player prefab (from Resources or a direct reference)
    GameObject playerPrefab = Resources.Load<GameObject>("PlayerPrefab");
    // Spawn the player sync'd to all room members
    PhotonNetwork.Instantiate(
        playerPrefab.name, 
        Vector3.zero, 
        Quaternion.identity, 
        0 // Group ID (0 is default)
    );
}

2. Verify Player Objects Have a PhotonView Component #

Every player object (and any object that needs network sync) requires a PhotonView component:

• Add PhotonView to your player prefab.
• In the PhotonView settings, add components you want to sync (like Transform for position/rotation, or your custom movement script) to the Observed Components list.
• Ensure the View ID is set to AutoGenerate (default) so Photon assigns unique IDs to each instance.

3. Confirm PlayFab ↔ Photon Authentication is Fully Linked #

Even though you're joining rooms, incomplete auth can sometimes cause sync issues. Double-check that after logging into PlayFab, you're fetching a Photon auth token and using it to connect:

private void OnLoginSuccess(LoginResult result)
{
    _playFabPlayerIdCache = result.PlayFabId;
    // Request Photon auth token from PlayFab
    PlayFabClientAPI.GetPhotonAuthenticationToken(
        new GetPhotonAuthenticationTokenRequest { PhotonApplicationId = "YOUR_PHOTON_APP_ID" },
        OnPhotonTokenReceived,
        OnPlayFabError
    );
}

private void OnPhotonTokenReceived(GetPhotonAuthenticationTokenResult tokenResult)
{
    // Configure Photon auth values with PlayFab token
    PhotonNetwork.AuthValues = new AuthenticationValues();
    PhotonNetwork.AuthValues.UserId = _playFabPlayerIdCache;
    PhotonNetwork.AuthValues.AuthType = CustomAuthenticationType.Custom;
    PhotonNetwork.AuthValues.AddAuthParameter("token", tokenResult.PhotonCustomAuthenticationToken);
    
    // Connect to Photon servers
    PhotonNetwork.ConnectUsingSettings();
}

4. Sync Scene Loading Across All Players #

If players are loading scenes at different times or via different methods, their spawned objects might not align:

• Enable AutoSyncScene in your PhotonServerSettings (this ensures all players load the same scene when the master client triggers it).
• Use PhotonNetwork.LoadLevel() instead of SceneManager.LoadScene() to trigger scene loads:

  void OnJoinedRoom()
  {
      // Sync scene load to all room members
      PhotonNetwork.LoadLevel("YourGameScene");
  }
  

• Spawn players after the scene has fully loaded (e.g., in a Start() method on a scene-specific manager).

5. Debug with Logs to Confirm Sync #

Add these callback methods to your authentication/room manager to verify players are connecting and objects are spawning:

void OnJoinedRoom()
{
    Debug.Log($"Joined room: {PhotonNetwork.CurrentRoom.Name} | Total players: {PhotonNetwork.CurrentRoom.PlayerCount}");
}

void OnPhotonPlayerConnected(PhotonPlayer newPlayer)
{
    Debug.Log($"Player connected: {newPlayer.NickName} (ID: {newPlayer.ID})");
}

void OnPhotonPlayerDisconnected(PhotonPlayer otherPlayer)
{
    Debug.Log($"Player disconnected: {otherPlayer.NickName}");
}

Also, check Photon's built-in logs (enable them in PhotonServerSettings > Logging Level) for any errors related to sync or authentication.

Start with the first two steps—they're the most likely fixes. If you're still stuck, share a bit more code (like your player spawn logic or Photon setup) and we can dig deeper!

内容的提问来源于stack exchange，提问作者Rinktacular