OpenComposite OpenXR

Thank you MickT

 

Got my OpenXR Toolkit working again. Maybe it works for you too:
VR Discussions, Questions & Feedback

 

May have asked this in this thread but cannot find anything so: Is there a way to get SimHub overlays in my Pimax? I have AMS2 working fine using Opencomposite and FFR via XRToolkit?
Done a lot of googling but cannot find NE thing spicific except that you 'cannot' do it via OpenComposite. Hope that is not correct?

 

Yes thats possible, i'm using OpenKneeBoard to have my simhub overlays/discord overlay and streamchat in my VR headset.

 

Hey y'all, i have a Quest 3 and ive been playing AMS2 with link cable using open composite (openxr) and openxrtoolkit (although the toolkit options don't show in AMS2).
Lately i have purchase virtual desktop and have been playing with that. For some reason when i go to launch AMS2 in VDXR it opens the meta quest app and errors. I think it is erroring about openxr, but im not sure what is going on? Im playing LMU and AC using opencomposite and VDXR and they work fine. Im not all that knowledgeable and the details of vr, im just good at following directions and finding a logical way to make it work. i know how to work PCs in general. Any ideas? I would like to switch to VD for a while.

 

You need this. GitHub - rodolZ80/bypass-oculus-detector: Windows Library that simulates not having the Oculus service running and having the VR Headset disconnected.

 

Yep i found it just a few minutes ago, thanks!

 

And ignore the part where they say to set the default OpenXR to Oculus. VD takes care of all that, just choose VDXR codec.

 

Same as me new to VR. Coming from Playstation5, still race ACC in our fantastic 10tenth racing community I am Fed up everytime wasting an hour+ tinkering with all those runtimes. Haven’t even seen openXR toolkit in AMS2. So how do I know if game launched with openXR? Can you make step-by-step manual how you get in AMS2 with openXR now. I believe you learned it. Many thanks, kris

 

I may have stumbled accross my answer by accident:

-launch steam
-launch Mixed Reality Portal
-launch AMS2 (in steam VR mode)

Becuase Mixed Reality Portal is already running,
OpenXR can just hook into it without launching Steam VR first.

If you just launch AMS2 normaly out of steam (without any VR portal running),
SteamVR launches to launch Mixed Reality Potral.

Hope that makes sense.

Side note, can anyone confirm NIS resolution scaling is not compatible with AMS2?

 

Hi!!!
I'm just writing to thank everyone for the help I've found in this thread. I am a QUEST 3 and AMS2 user, so you can imagine the work it took me to configure it. I had been dedicated to this for 2 weeks, until I found in this thread something related to the DLL that forces the execution of SteamVR for AMS2+OCULUS users.
Many thanks!!!
Greetings!!!

 

Good morning, everyone!

I have doubts about whether I have properly configured the system for games to launch through OpenComposite. In fact, this is my setup:

In the root folder of the game, I have the bypass file "LibOVRRT64_1.dll", and in the game's X64 folder, I have the openvr_api.dll file. In the Meta software, I set the runtime environment to OpenXR, and that's it. I launch the game through SteamVR, but it opens in OpenXR.

But my doubt is that I can have the OpenComposite program disabled, and it still seems to run through OpenXR. In fact, right now it is disabled, and I just finished playing Automobilista 2, and it ran through OpenXR, with OpenXR Toolkit working perfectly.

So my question is: Am I doing it right? Shouldn't OpenComposite be enabled for the game to run through OpenXR? Does the bypass "LibOVRRT64_1.dll" replace OpenComposite, and that's why I can have OpenComposite disabled?

Thank you all so much for your help.

 

there are 2 ways.
Either you use opencomposite and this copies the dll temporarily to the game folder or you copy the dll yourself permanent to the game folder.
If you do both, its counter productive

 

But I don't understand something. Do I download the ".dll" myself from the GitLab download page (Campbell Suter (ZNix) / OpenComposite · GitLab) and, as stated in the instructions, paste that ".dll" into the game's X64 folder?

Additionally, I also download OpenComposite, which I activate, and also the "LibOVRRT64_1.dll," which I paste into the root of the game's folder.

Am I doing this twice? If I activate OpenComposite, should I not paste the ".dll" into the game's folder? Should I activate OpenComposite, paste the ".dll" into the game's folder, and not paste the "LibOVRRT64_1.dll" file into the root folder? Am I duplicating the process?

I would really appreciate it if you could tell me the correct steps to follow to do it properly. Thanks for your response!

 

You do one or the other. You either use the per game DLL (which you have done) or you use the OC launcher, not both.

1: LibOVRRT64_1.dll / required

2: openvr_api.dll OR opencomposite launcher

3: open xr toolkit / optional

I prefer the per game dll as the launcher always grabs the latest version and sometimes they break it. Once you have a working copy of the dll there is really no need to get a newer version.

 

I spent an entire morning testing, and in the end, I created a guide for anyone who might need it.

OpenComposite Guide for Meta Link and Virtual Desktop
1. Preparation

To play with OpenComposite using Meta Link (wired) or Virtual Desktop, follow these steps:

1. Copy the "LibOVRRT" file to the game's root folder. This step is mandatory.
2. Manage the "openvr_api.dll" file:
   • There are two versions:
     • Original: Installed with the game.
     • Modified: Downloaded from the OpenComposite GitLab page.
   • Both files must be placed in the game's "X64" folder.

2. Configuration Options

After pasting the LibOVRRT file and enabling the Meta Link or Virtual Desktop option to set Meta Quest Link as the OpenXR runtime (this is mandatory in both cases), you have two options:

Option 1: Use the original "openvr_api.dll" file

• In this case, the game will launch with OpenXR through OpenComposite, depending on its configuration:
  • If OpenComposite is set to "Switch to OpenComposite", the game will use OpenXR.
  • If OpenComposite is set to "Switch to SteamVR", the game will launch through SteamVR.

Option 2: Use the modified "openvr_api.dll" file

• With this file, the game will always run with OpenXR, regardless of OpenComposite’s configuration.
• OpenComposite will have no control over this; the game will launch in OpenXR whether OpenComposite is enabled or disabled.

✅ Note: This process is the same whether you play with Meta Link or Virtual Desktop.

 

Hello.
I m running ams with the opencomposite dll and openxr tool kit and everything is working fine and I get a major perf upgrade with my 3080.
The only problem I have now is making motion compensation work with my dofH3. Everything was working f8ne with steam Vr but wasn t able to make openxr motion compensation working with opencomposite in AmS2.
Did someone find a solution ?
Thanks a lot

 

Edit. I found the solution. I needed to put the motionscompensation api layer after VD API layer.

Everything is working like a Charm now !