Issues related to Holographic Remoting for OpenXR

[veeruby-developer]

Built the Desktop App for OpenXR to test Holographic Remoting from sample project OpenXR Mixed Reality samples repo and was able the establish connection with HoloLens, but have below issues in it.

1. was not able to click on any of the Button on the Menu(no Pointers).
2. on the Desktop app there is no preview being shown once it is connected to HoloLens.

getting this error on the console:

"OpenXR reprojection settings are not supported; missing openXR extension XR_MSFT_composition_reprojection_preview"

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• ID: 491e1f34-574b-1cb2-60e1-cc3a7f948610
• Version Independent ID: a2e67067-6084-58f9-4078-45a3d4d1b584
• Content: Holographic Remoting in desktop app - Mixed Reality
• Content Source: mixed-reality-docs/mr-dev-docs/develop/unity/holographic-remoting-desktop.md
• Product: mixed-reality
• Technology: mr-dev
• GitHub Login: @hferrone
• Microsoft Alias: alexturn

[keveleigh]

Did you build the PC app as UWP or Windows Standalone? There's a known Unity issue on UWP, but it should work on Standalone.

[veeruby-developer]

@keveleigh Thanks for your response, I had built PC app as UWP and had above issues. now that you mentioned, built the PC App as Windows Standalone and was able to connect to holoLens2. but had the same issue "was not able to click on any of the Button on the Menu(no Pointers)" and in the console still getting this error "OpenXR reprojection settings are not supported; missing openXR extension XR_MSFT_composition_reprojection_preview". however now preview is being shown once the App is connected to HoloLens.

Further to that, we are in progress with Updating PC Holographic Remoting Tutorial to support OpenXR. this tutorial includes a demonstration of 3D model manipulation, model clipping, and eye-tracking features. all of these features works perfectly with Legacy WSA.

but With OpenXR had below problems.

• When PC App built as UWP: Hand interactions does not work and on the Desktop app there is no preview being shown once it is connected to HoloLens(like the sample app).

• When PC App built as Windows Standalone : able to see the preview on PC App and able to click the buttons only with Near interaction. rest like "far interactions", "grabbing an object with tracked hands", "eye tracking" are not working.

can you please confirm does Holographic Remoting for OpenXR supports "far interactions", "grab an object with tracked hands", "eye tracking" features ?

Thank you.

[keveleigh]

@veeruby-developer Which MRTK and Mixed Reality OpenXR package versions are you using? I'd definitely recommend updating to the latest. Also, which profiles are you using for MRTK?

can you please confirm does Holographic Remoting for OpenXR supports "far interactions", "grab an object with tracked hands", "eye tracking" features ?

Yep! All of these should work over Holographic Remoting for OpenXR.

[veeruby-developer]

@keveleigh we are using MRTK 2.7.0 and Mixed Reality OpenXR plugin 0.9.5. and for MRTK profile we are using DefaultHoloLens2ConfigurationProfile

[keveleigh]

I'd double check that you have the Microsoft HoloLens feature set enabled and make sure you have Microsoft Hand Interaction added to the interaction profiles list

https://docs.microsoft.com/en-us/windows/mixed-reality/develop/unity/openxr-getting-started#configuring-xr-plugin-management-for-openxr

[veeruby-developer]

I'd double check that you have the Microsoft HoloLens feature set enabled and make sure you have Microsoft Hand Interaction added to the interaction profiles list

worked with these changes. Thank you for your support @keveleigh