Bug After enabling XR plugin management, rendering stops working

In a clean project using Unity 2022.2 (any version) I do the following:

1. Enable XR Plugin Management
2. Make sure XR rendering on camera in scene i disabled
3. Make a build (mono or il2cpp)
4. Start build - camera rendering "frozen"

If XR rendering is enabled on camera, it works fine in build. Also, if making build without XR Plugin Management installed it works fine.

Also, everything works 100% in development build, but not in regular mono or il2cpp builds.

 

How do you 'enable xr rendering'?
Do you use gameobject - convert main camera to xr rig?
That works for me in the latest 2022.2 version

 

I use the method described method below, works fine in editor and development build - but not in regular mono and il2cpp builds:

Code (CSharp):

1.  
2.     XRLoader m_SelectedXRLoader;
3.  
4.     void StartXR(int loaderIndex)
5.     {
6.         // Once a loader has been selected, prevent the RuntimeXRLoaderManager from
7.         // losing access to the selected loader
8.         if (m_SelectedXRLoader == null)
9.         {
10.             m_SelectedXRLoader = XRGeneralSettings.Instance.Manager.activeLoaders[loaderIndex];
11.         }
12.         StartCoroutine(StartXRCoroutine());
13.     }
14.  
15.     IEnumerator StartXRCoroutine()
16.     {
17.         Debug.Log("Init XR loader");
18.  
19.         var initSuccess = m_SelectedXRLoader.Initialize();
20.         if (!initSuccess)
21.         {
22.             Debug.LogError("Error initializing selected loader.");
23.         }
24.         else
25.         {
26.             yield return null;
27.             Debug.Log("Start XR loader");
28.             var startSuccess = m_SelectedXRLoader.Start();
29.             if (!startSuccess)
30.             {
31.                 yield return null;
32.                 Debug.LogError("Error starting selected loader.");
33.                 m_SelectedXRLoader.Deinitialize();
34.             }
35.         }
36.     }
37.  
38.     void StopXR()
39.     {
40.         Debug.Log("Stopping XR Loader...");
41.         m_SelectedXRLoader.Stop();
42.         m_SelectedXRLoader.Deinitialize();
43.         m_SelectedXRLoader = null;
44.         Debug.Log("XR Loader stopped completely.");
45.     }

Method found here: https://docs.unity3d.com/Packages/com.unity.xr.management@4.3/manual/index.html

You can download my test project here: https://drive.google.com/file/d/1bnPNposzHYkDftmUBX-3f1CvhSesHc5t/view?usp=share_link

Just run it in editor, press "v" key on keyboard to toggle XR on/off - then make a build and do the same to reproduce issue.

PS: Before updating to Unity 2022.2, I could just toggle XR Rendering on/off on camera, but this doesn't work after upgrading.

 

Maybe check for errors. In non-development builds there will be a log file in appdata.
I personally never toggled VR, so cannot help much.

If the code works in 2022 but doesn't now without indication on what, you can make a bug report (attatch both projects if possible)

 

No errors in player log, or in development build console.

 

Then i suggest filing a bug report. Share the ticket id here as well

 

Dude, file a bug report and ticket like we're supposed to do when we encounter a bug.

 

I have filed one, but these usually takes months before they are fixed.

 

That is correct, I suggest you find a workaround for your problem in the meantime while you wait for a dev to take a look at your report.

 

This is what I am trying to do...

 

What you are trying to do is force someone to take a look at your ticket, this is wrong. Wait for a reply like everyone else. Good luck!

 

Thank you, I can use some good luck!

 

IN number for bug report: IN-32575

Download link to Unity project re-producing issue: CLICK HERE TO DOWNLOAD

Instructions:

1. Open "Test Scene"
2. Press PLAY
3. toggle XR rendering on/off using "V" key on keyboard (also changes camera, but same happens when using one camera)
4. Make a build
5. In build, toggle XR rendering on/off using "V" key on keyboard
6. Observe that when switching XR rendering off, rendering looks strange

NB: This only happens when VR headset is connected. I am using Windows Mixed Reality portal and HP Reverb G2.

 

Did another test: It works with multipass, so seems to be Single-pass instanced related

 

Issue can be voted on here: https://issuetracker.unity3d.com/is...abled-does-not-match-the-output-of-the-editor

Appreciate any help voting this up! Thanks

 

@LianneUnityXR It is over 3 months since I reported this issue, but it has not been resolved. Do you have any news? Eager to upgrade to 2022.2. Thank you very much!