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I am working on Windows 10 with Windows Mixed Reality Runtime and Hololens 2 emulator to run the hello_xr test . I was able to build the project using Visual Studio 19 and run it from command prompt as follows

hello_xr.exe -g D3D12 -ff Hmd -vc Stereo -bm Opaque -s Local

This is unable to get system and throws the following error although Hololens 2 emulator has been launched prior to running the above command

[16:09:52.495][Info   ] Press any key to shutdown...
[16:09:52.586][Info   ] Available Layers: (0)
[16:09:52.616][Info   ] Instance RuntimeName=Windows Mixed Reality Runtime RuntimeVersion=112.2211.2002
[16:09:52.623][Error  ] XrResult failure [XR_ERROR_FORM_FACTOR_UNAVAILABLE]
    Origin: xrGetSystem(m_instance, &systemInfo, &m_systemId)
    Source: ..\..\..\src\tests\hello_xr\openxr_program.cpp:298

Maybe I should launch the test from within Visual Studio using Hololens 2 emulator as debug target for this to work. But I am not sure how that can be achieved.

How do I go about debugging this? I just started with XR development.

WillyWonka
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1 Answers1

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This was solved in the Khronos forums.

Update (adding some context in case the link is unavailable later): Instead of hololens emulator we can also use Windows Mixed Reality Portal or SteamVR to run the hello_xr sample. I used SteamVR along with an android phone. Steps followed were

  1. Install SteamVR (Updated the link).
  2. Change the active runtime from Windows Mixed Reality to SteamVR. The path to the manifest json file for SteamVR should be {drive}:\Program Files (x86)\Steam\steamapps\common\SteamVR\steamxr_win64.json . Registry editor can be updated to change the active runtime, details about runtime discovery can be found in the loader spec.
WillyWonka
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