add open XR oculus support

[battlegear2099]

please add open XR / old open vr api support, steamvr is getting slower and slower in games like dcs world and other more demanding software I am finding and having to use openxr over oculus instead of steamvr.

[CurtisVL]

Hi there!

Oculus Runtime doesn't support third-party overlays I'm afraid, only SteamVR does at this time!

[horsky]

Yeah, really is sad. OVRToolkit was the salvation for accesing desktop, best out there imo.
We finally got Open Composite, OpenXR, OXRToolkit, XRNecksafer to wmr. Games like DCS, IL2, the joy, but no virtual desktop.

Ive been looking like a nut for something similar, wmrs virtual desktop is horrible.

[battlegear2099]

ok never to mean just oculus it can use all 3 api's , pretty much none vive steamvr headsets this appies to. I mean you should look at possibility adding openxr api support besides the old steamvr api to your app aswell, steam can use openrx runtime now and it runs way faster as it bypass legacy openvr calls/layers for the vive, for none vive steam vr headsets and your app does slow down over old steamvr , loading overlays and interface it kills some fps, maybe because of the extra vive calls?. I bet if it was over openxr be faster and then still use the steam overlay layer or added your own overlays. just as I expect openxr will prob be the new standard in near future.

[CurtisVL]

引用自 battlegear2099：

ok never to mean just oculus it can use all 3 api's , pretty much none vive steamvr headsets this appies to. I mean you should look at possibility adding openxr api support besides the old steamvr api to your app aswell, steam can use openrx runtime now and it runs way faster as it bypass legacy openvr calls/layers for the vive, for none vive steam vr headsets and your app does slow down over old steamvr , loading overlays and interface it kills some fps, maybe because of the extra vive calls?. I bet if it was over openxr be faster and then still use the steam overlay layer or added your own overlays. just as I expect openxr will prob be the new standard in near future.

Hi there!

Looks like I didn't answer properly the first time, OpenXR doesn't support overlays at this time, only OpenVR does.

At this time, only SteamVR and PiMax Compositor (Sort of) can run OVR Toolkit. Oculus Runtime doesn't implement OpenVR so SteamVR is required.

When using SteamVR native headsets like Vive or Index performance is greatly improved! When using an Oculus headset unfortunately there's some double rendering as you need to render Oculus Compositor with OpenVR Compositor on top, and this is made even worse when in an OpenXR title as SteamVR seems to perform very poorly in OpenXR titles. :(

At this time, it's not possible to support OpenXR. They do have an experimental overlays extension, but right now this isn't implemented into SteamVR, Oculus Runtime, or any other compositors.