[Direct Stream 3D video]

This may be tough for current SteamVR-native headsets. Integrate Valve's SteamVR hardware into your headset

[Unreal Engine Application installs as 2D app on Focus 3 and not A VR app.]

On 4/11/2022 at 6:42 PM, Mark Moukarzel said:

Hi @KieranLatham,

Please make sure you have Start in VR selected.

You will also need the WaveSDK plugin in order to build content for Focus 3. You can download the latest Wave SDK here https://developer.vive.com/resources/vive-wave/download/latest/

In case you already did this Make sure VIVE Wave™ is the only VR plugin enabled. Turn off all other VR plugins (especially OculusVR and SteamVR) to prevent conflicts.

I would also recommend you check our Unreal Engine Getting Started Guide.

The SteamVR software hadn't been properly switched off (I'm not sure why), but I uninstalled it and double-checked the project settings, and now everything's fine.