Varjo XR-4 not launching vr_sample?

[axel.goris]

Hey :)

We finally got a varjo XR-4 ready computer!
I'm starting development, and I wanted to check the vr_sample.
I've simply installed it, and tried using ` -console_command "world_load vr_sample/vr_sample.world" -vr_app varjo` inside of the run arguments. Except it crashes almost instantly and does not seem to leave logs? (Consider that I'm also new to this!)
I've installed Varjo Base and using the inside_out tracking. I did not install steamVR since it should be using the VarjoSDK and not OpenVR, is that correct?

Any idea what is going wrong?

EDIT: Nevermind, found the log which clearly needs OpenVR installed.

"16:15:43 ---- VR Subsystems ----
16:15:43 ERROR:    VRInputOpenVR::init(): Unable to init OpenVR runtime
16:15:43 ERROR:        Installation path could not be located (110)
16:15:43 VR Subsystems initialization (Time: 7.7ms, Memory: 19.1KB)"

Any reason for this?

 

Have a great day,

Axel

Edited April 17, 2025 by axel.goris
Found a log

[silent]

Hi Axel,

Varjo currently relies on OpenVR for tracking external devices such as joysticks, which is why it's required at this time. That said, we may be able to adjust the engine's behavior to allow launching with Varjo without OpenVR—specifically for displaying the image in the HMD only.

I’ll go ahead and create a ticket for our team to consider implementing this feature in a future SDK release.

Thanks again for your input!