To start: I am quite new to Unreal and game development in general, and the game I am working on has been developed by someone else for the most part and I am now working on it.
The problem is there is no VR mirror displayed when playing the game (using HTC Vive), instead a large window showing blackness which takes up half the screen. I’ve checked through the blueprints everywhere I can and there doesn’t seem to be anything amiss. I’ve tried running different mirror mode commands to no avail. I’ve updated graphics card drivers in case it was it not agreeing with the hardware but it still isn’t an issue. The previous version of the software has a mirror fine, however this version does not and the original developer is unfortunately uncontactable at the moment so I can’t check what changed between the versions and I can’t check the previous version.
Does anyone have any ideas as to how to fix this? It is quite crucial that the mirror works for this game.
In case you didn’t find the solution yet:
Commands “HMD Mirror Mode” seems to work only for Oculus for now, if you use them if Vive not only the screen goes black in build but also in editor.
To solve this you need to remove mirror mode nodes from the project, close it and remove Saved folder from the project so it will get rebuilt on opening.
If you want to have control what is displayed on the screen you need to add those lines to DefaultEngine.ini file in your project → Config folder.
[SteamVR.Settings]
WindowMirrorMode=0
to set it to default mode.
You can also use 1 for stereo view or 2 for single eye.
So far I couldn’t make mode 3 or 4 that’s working on Oculus working on Vive.
Did anyone succeed with that?
That sounds very much like it would work. Unfortunately I can’t test it for a couple weeks, but once I’m back at it I’ll post up if that solution works.
When I set the mode to 4 my mirror window freezes by enabling stereo. Do you have the same issue ?
It also changes my display (I have a wide view) in my headset which is obviously not the expected result.
I didn’t have any problems with that.
I made keyboard shortcuts to change between modes and all of them worked fine.
I’m working on Vive mainly though, playing game on Oculus just from time to time.
Managed to finally find the command where it runs the HMD Mirror Mode command, however changing it to 0 doesn’t seem to work, nor does removing the node entirely, even if I remove the Saved folder and reopen. Still a black screen. The console commands are definitely running fine as I can change the resolution of the mirror, it just still doesn’t display.