Bug Anything I build it always shows as 2D on the actual Hololens 2 ARM64 device

Hey, Unity guys! This is driving me crazy! I started a vanilla project (Unity 2019 LTS), imported all MRTK packages (Tools, Foundation, Extensions and Examples, then I added the new XR plugin management. Here's my setting:


SO, I then load the famous scene HandInteractionsExamples from the demo scenes and in the Build Window, I hit Build All. Then I deploy on the device and... here's what I get:

It's a 2D version of what it's supposed to be, and, even more odd, it's like parented to the head, is stuck in front of me and that is what I see moving my head, see here, looking down:


What is going on here? Any idea? Pointers?

 

I figured this out by myself; now, I hope Unity will fix this. What I was doing is to use the new MR Management plugin and its satellite plugins, which are the official preferred approach. Well, that doesn't work. Rolling back to Windows Mixed Reality plugin solves the problem.

This can be reproduced at will on Unity 2019 LTS (2019.4.1f1), and reproduces the same behaviour all the times.

 

Also, by default the MRTK profiles are configured for the Windows Mixed Reality Plugin. We have support for XR SDK and the Windows XR Plugin package though, if you follow the steps at https://microsoft.github.io/MixedRe...mentation/GettingStartedWithMRTKAndXRSDK.html. That should resolve the head lock.

 

Still having this issue even when following the docs. (and it keeps saying development build in the bottom right)

 

The legacy stuff works but then I'm getting the Crash when trying to record a video :
'No capture devices are available.'

 

https://fogbugz.unity3d.com/default.asp?1273402_tfonj58rck2jk704 here you go

 

Hi Thank you, When I try to check WMR, it is saying assigning all requested loaders, it installs the packages and then returns unchecked.

 

The sample was imported by me in the plugin manager. I reinstalled the XR Plugin Manager as you suggested but without succes. I get the warning :
XR Plug-in Management Warning: Timeout trying to get package list after 30s.
UnityEditor.EditorApplication:Internal_CallUpdateFunctions(

 

I get this from the editor log:
Start importing Assets/MRTK/SDK/Profiles/DefaultMixedRealitySceneSystemProfile.asset using Guid(069efa41032a317409790a6a08435311) Importer(-1,00000000000000000000000000000000)
Done importing asset: 'Assets/MRTK/SDK/Profiles/DefaultMixedRealitySceneSystemProfile.asset' (target hash: 'c6d01582300a30497c1098dda206880e') in 0.039397 seconds
Start importing Assets/XR/XRGeneralSettings.asset using Guid(a9d53539e0b5e6e4dbd6ae7c78092d11) Importer(-1,00000000000000000000000000000000)
Done importing asset: 'Assets/XR/XRGeneralSettings.asset' (target hash: '921eb593cc139b9f481c4ee614eabded') in 0.026727 seconds
Start importing ProjectSettings/ProjectSettings.asset using Guid(00000000000000004000000000000000) Importer(-1,00000000000000000000000000000000)
Done importing asset: 'ProjectSettings/ProjectSettings.asset' (target hash: '95f8a15b6db331cfc2c859bcda8f0dbd') in 0.034445 seconds
Refreshing native plugins compatible for Editor in 0.97 ms, found 7 plugins.
Preloading 1 native plugins for Editor in 0.10 ms.
RefreshInfo: StopAssetImportingV2(NoUpdateAssetOptions)

 

Hi Joejo, Im running 3.2.13

 

I'm experiencing the same issue. I'm just starting out with the HoloLens 2, but following the guides to set it up just results in the above issue. I'm on Unity 2020.1. In general, it's starting to get very confusing which XR plugin we're supposed to be using, since Unity keeps changing it. Microsoft's MRTK wants to enable the legacy XR system, but that's no longer visible in the player settings. The XR plugin management package (3.2.13) and the Windows XR Plugin (both 3.3.1 and 4.0.2) result in the issue described in the OP. I'll try reverting to an older Unity version.

Can we get official word from Unity how to get the HoloLens 2 up and running in modern Unity versions?

 

Where can we find the player log?

 

I've been experiencing the same bug lately.
Originally I was using Unity 2020.1.2f, then I tried to use 2019.4.3f following this thread, then 2019.3.2f following an advice from a coworker, and did not manage to make it work a single time.
I'm on the latest visual studio, latest windows 10, and tried with both MRTK 2.3 and 2.4 downloaded from Microsoft's github.

The scene is always rendered as 2D and I'm unable to interact with anything in the scene.
Even with an empty scene only containing MixedRealityPlayspace, MixedRealtyToolkit and a basic cube.

 

@Arkonis_Khobalt The only working option is using the legacy XR system, available up to 2019.4. You need to uninstall the XR packages, and only have the WMR and XR Legacy Input Helpers packages installed. Then, in the UWP player settings, you can enable WMR under XR settings > VR supported. Important note: the camera background color must be alpha 0, or the application will be run as a 2D window instead of a 3D environment.

@joejo It doesn't seem like anyone is able to get the XR plugins to do anything but the issue described in the OP.

 

@Thomas-Mountainborn Thank you very much it finally worked !
Do you know if there is a way to use HL2's handtracking from MRTK or is it dead in the water until the new XR pipeline gets fixed ?

 

What exactly is it you want to use from the hand tracking? I can definitely use the hand tracking features such as displayed in the hand tracking sample scene from MRTK.

 

Oh perfect then, I just need to grab things and push buttons.
From what you said I missunderstood that no other SDKs were able to function with this limited and officially deprecated XR-support.
I'll try to make my [MRTK 2.4 + vuforia] scene work and report any significative findings.

 

So to sum eveything up in case it can help someone one day, here's what I had to do to setup XR on Hololens :
- Maximum working version is unity 2019.4.9. You need to install legacy XR and MIxedRealityToolKit from Unity Package Manager.
- Use Legacy XR's XRRig (GameObject > XR > Convert Main Camera to XRRig) instead of the MixedRealityPlayspace added by MRTK, and as you said it requires an alpha 0 background.
- Then you can import MRTK 2.4
- Add the MixedRealityToolkit manager to the scene (Top bar > MixedRealityToolkit > add to scene and configure) and follow this configuration guide.

You can now use pointers / spatial awareness / etc.
(I still have issues while using files from StreamingAssets but it's unrelated to this thread's topic).

 

Hey keveleigh,
Selecting the DefaultXRSDKDefaultConfigurationProfile did indeed solve the lock problem, but things like the HandConstraint for the hand menu do not work with that for some reason.

//EDIT:
Subscribing to global input events as described below works fine:
https://microsoft.github.io/MixedRealityToolkit-Unity/Documentation/Input/InputEvents.html

 

I managed to solve it by updating unity and creating a clean project.

Still got the issue:
"Capture device that is present on the system is not supported by Media Foundation" when trying to record video

 

Ah yeah, that was due to a misconfiguration of the profile. It was missing HandJointService. You can either add it manually, or it'll be fixed in the upcoming 2.5.0 release: https://github.com/microsoft/MixedRealityToolkit-Unity/pull/8328

 

Figuring out the configurations with HoloLens 2, MRTK 2.4 and XRSDK is a hassle at the moment. What guide or list of steps is working correctly, without headlock and with correct HL2 input?