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Hi supports,
I am trying to persist the spatial anchor locally using the reference (https://video2.skills-academy.com/en-us/windows/mixed-reality/develop/unity/spatial-anchors-in-unity?tabs=anchorstore#persistent-world-locking) with holographic remoting. The second approach using XRAnchorStore works fine in the Unity Editor but does not work in a standalone Windows *.exe file. The anchor can only persist between sessions in Unity Editor. In the standalone Windows *.exe, the ARAnchorManager does not work.
I also tried the recommended World Locking Tools, but it does not work with holographic remoting in the Unity Editor. An error message of Select Null anchor manager will appear.
Is there a solution that can make spatial anchors work with holographic remoting in the Unity Editor and standalone Windows execution?
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Hello, Welcome to Microsoft Q&A,
What did you choose for Anchor Subsystem when you configured the World Locking Tool? Please try to choose the XR SDK. For more information, please refer to Cross Platform using Unity's XR SDK Plugin system | Microsoft Learn.
I am using the XR SDK as the Anchor Subsystem. I believe that the reason why WLT with holographic remoting does not work in the Unity Editor is because it is not supported. I received the following message in the editor console: Switching from XRSDK to AnchorSubsystem.Null because running in editor.
I then changed to building a standalone Windows app for remoting. The Player.Log shows Success creating XR anchor manager . However, when I tried to close the exe, I received the following error message: InvalidOperationException: Can't call 'GetChanges' without 'Start'ing the anchor subsystem!
Thanks for your feedback. I did some testing and there seems to be some issues with using Holographic Remoting to run the World Locking Tool feature in Unity 2021. I'll go ahead and do some testing.
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For WLT, correct. I would recommend to focus on the XRManager scenario.
For the end device, this is only with one HoloLens 2 device? Or is the scenario being trying to use a desktop PC for example to stream to HoloLens? If the later, this would not be supported as anchors are on local storage per docs:
"You save and load these anchors on the same device. Cross-device anchors are supported through Azure Spatial Anchors."