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demonixis
demonixis
Up and Coming
June 7, 2023

MetaXR OVRPlugin crashes at start, Native OpenXR with Oculus is OK

Hello,

With the latest MetaXR plugin on Unreal Engine 5.1 (Launcher version), there is a problem running the OVRPlugin backend with a crash when running the game. It's fine when using native OpenXR with Oculus, it's also fine with Epic's OpenXR plugin without MetaXR plugin.

When selecting Native OpenXR + Oculus extensions, does it enable MetaXR features too? I mean adaptive resolution, FFR, etc.. ? 

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    4 replies

    satriodewantono
    New Participant
    July 10, 2023

    Bumping this since I think I have the same problem. Would like to still use the OVRPlugin so hoping the Meta dev team addresses this. In my case I think it's related to the plugin failing to generate swapchains for Vulkan, which is weird because I'm not using Vulkan at all.

    As for your question I think FFR should still work as Unreal itself has options for it in the rendering project settings. Looks like DFR is the one that's OVR exclusive. Also at a loss with hand tracking.

    satriodewantono
    New Participant
    July 10, 2023

    Oh update, I was able to use the OVRPlugin again after disabling "Developer Runtime Features" in the Oculus desktop app. This disables hand tracking as well though.

    hugoar
    hugoar
    Up and Coming
    July 18, 2023

    Hello I have a similar project with a project that was working fine and now crash on launch. it runs on Unreal Engine 4.1.1 and uses MetaXr plugins configured with oculus OVR plugin+openxr backend. I can reopen it with Epic Native Openxr but I cannot use passthrough and hand tracking with Native openxr! 

    hugoar
    hugoar
    Up and Coming
    July 19, 2023

    Looks like they corrected the bug. Today it is working again. Two days of works lost become of that bug....

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