VR is not rendering when not focused

Development Rendering
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1

Hi everyone,

In my project, I have one Listen server which is responsible for menus interactions only, one client which is responsible of the VR rendering, and a last client designed for free flying through the level.

The setup is working properly. The only issue is that the VR client window and the Oculus screens are not refreshed when the VR client window doesn’t have focus.
When I focus the VR client window, everything works as expected and all others windows are also refreshed.
So I guess this is pure rendering/display issue.
Obviously, I’m running all the three instances of the game from a single computer.

So, is there any way to force the refresh of a window ?
I’m mostly using Blueprints in my project but I can go into C++ too if necessary.

I know it’s technically possible since I’ve seen it working in VBS3.

Best regards.

2

I’ve finally decided to use a double PC setup…

3

Hello,

I have the same setup for my current project. And the same issue. The VR doesn’t refresh if not focused.

Do you have a workaround to make it work on the same PC?

Thanks,
Dex

4

Hi !
Actually I don’t have this issue anymore. I’m running three windows and one of them is WindowedFullscreen for the mirrored rendering. All windows are refresh properly.
Are you using the 4.12 version of the Engine ? They improved a lot a things around VR.

5

Ok, so with 4.12.3 it’s working. Thanks.

6

Solved in 4.12

7

I am working with 4.15.2 and it still has this issue for me? How did you managed to solve it?