Vive Focus 3 with Vive Business Streaming app does not supply hand tracking data via OpenXR in Unreal Engine

[indieThing]

I'm currently attempting to get hand tracking working on a PC app that is using the Vive Business Streaming app for the Vive Focus 3 using Unreal engine 5.0.3. However, after following all of the documentation and trying the sample project for hand tracking, I'm still not seeing any hand pose data come through the GetMotionControllerData blueprint function. I've tried this with UE4.27.2 and UE5.0.3. Also, the VR headset is only recognised for a VR preview when enabling SteamVR. According to the documentation, SteamVR should be disabled for OpenXR to work!

Also, when I package a project leaving out the SteamVR plugin from the app package, VR is not recognised and the app just runs as a desktop app. How can I run a VR app on the PC with the Business Streaming but without the SteamVR plugin?

It seems to me that the hand tracking is not implemented for OpenXR as stated in the documentation. Please advise.

[JL Chen]

VIVE Business Streaming currently take the path of SteamVR runtime for both OpenVR and OpenXR contents.

So, for contents developed with OpenVR Skeleton Input or OpenXR hand tracking can obtain hand poses via SteamVR from VBS.