OpenXR Toolkit Tuning Guide (updated 21/02/23)

[edmuss]

Assuming that you don't use it for anything else then yes. I also run dirt rally 2 and Ellie dangerous via open composite and as neither of those are every likely to gain native openxr support I'll be keeping it.

Worthwhile making sure you have the native setup all running happily before you delete it.

[Gogsie59]

Can someone confirm that I can leave Open composite on my system and when I start dcs, stand alone, with my G2 it will not interfere with the the native open xr which is now included. I use open composite for other games and don't want to get rid of it. I certainly don't want to use steam vr. 

[edmuss]

I'm in the same boat, works fine just run DCS as normal and it should just open.

One telltale if you have WMR is that with open composite, the WMR home would shatter into triangles twice before starting DCS, now it only happens once.

[speed-of-heat]

I found that Turbo mode was interfering and causing the hang for me. 

[edmuss]

Yeah turbo is a no go at the moment, I think it's linked to the same code that has broken reprojection.  All being well it will be reinstated soon when the next update (hotfix?) comes through. Until then I'll seeth silently at WMR only giving me 52 fps when the GPU is feeding it 65

In the meantime, although not documented I think I'm getting slightly lower frametimes than before, maybe 1-1.5ms but it's all cumulative.
Really looking forward to seeing what DLSS will bring to the table over the current upscalers available!

[speed-of-heat]

It's difficult to judge without a like for like comparison.

 

Does anyone know how to u install open composite? 

[speed-of-heat]

but HAM seems to improve the frame rates by a solid (ish) 1 FPS ... which is better than nothing. 

[edmuss]

Turbo mode is situational.

I think in laymans terms if you miss the refresh target (60Hz in my case) then openxr forces the compositor to hold the frame, I believe in order to reduce potential sync issues.  The value that it's waiting by is shown on the toolkit developer overlay under waitGPU, turbo mode forces openxr to disregard the frame timing and just allow the GPU to generate frames as fast as possible.  This means that your GPU frametime can be 15ms (66 FPS) but your actual framerate would be closer to 55 FPS - when you're borderline on the refresh rate, this can be the difference between smooth and stuttery.
Hopefully it will make a return as for my usage it's very helpful

[tomeye]

1 hour ago, speed-of-heat said:

but HAM seems to improve the frame rates by a solid (ish) 1 FPS ... which is better than nothing. 

what is HAM?

[edmuss]

Headset mask, DCS has it's own so the toolkit one shouldn't make any difference unless it's a little more agressive and culls more pixels?

[speed-of-heat]

9 minutes ago, tomeye said:

what is HAM?

Cull Outer Mask (HAM) ... it seems to b a little more aggressivei n the pixels it culls out, not a lot but some

Edited January 27, 2023 by speed-of-heat

[speed-of-heat]

do we know what the disable mask HAM is for in the System Menu? (as opposed to turning it off under performance)

[Bearskin]

Info deleted

Edited January 28, 2023 by Bearskin

[edmuss]

None of that is required to stop using open composite, just use the --force_OpenXR switch on the DCS executable.

Also your frametimes aren't tieing up with you FPS 10ms is 100 FPS, 20ms is 50 FPS.  Something isn't adding up?

[plehmann]

On 1/27/2023 at 12:07 PM, speed-of-heat said:

I found that Turbo mode was interfering and causing the hang for me. 

ditto for me too it looks like ...I'm going through settings ...thought it was NIS initially

[speed-of-heat]

4 minutes ago, plehmann said:

ditto for me too it looks like ...I'm going through settings ...thought it was NIS initially

note with the current beta release unless you force openxr via the command line you will use opencomposite rather than DCS's native version of openxr, which should allow you turbo mode again 

[Burt]

See that’s what Im confused about I have the force oxr command line in my DCS shortcut but I’m able to turn on MR and turbo on without crashing are other issues making me believe that open comp is still overriding DCS native version of oxr. If I more the Open Composite folder off my desktop to and folder DCS starts up in 2d if I put the folder back on my desktop everything boots up in VR

dang !

[speed-of-heat]

8 minutes ago, Burt said:

See that’s what Im confused about I have the force oxr command line in my DCS shortcut but I’m able to turn on MR and turbo on without crashing are other issues making me believe that open comp is still overriding DCS native version of oxr. If I more the Open Composite folder off my desktop to and folder DCS starts up in 2d if I put the folder back on my desktop everything boots up in VR

dang !

sorry i don't understand 

the full command line is "E:\Games\Eagle Dynamics\DCS World Openbeta\bin\DCS.exe" --force_enable_VR --force_OpenXR

or wherever you have DCS... but you need both for it toi boot in VR

Edited January 28, 2023 by speed-of-heat

[edmuss]

6 minutes ago, speed-of-heat said:

but you need both for it toi boot in VR

Although you don't technically

 

I just have the use VR headset box checked in options.

[speed-of-heat]

5 minutes ago, edmuss said:

Although you don't technically

 

I just have the use VR headset box checked in options.

yes that works too

[t-stoff]

I'm feeling kinda of a drag while looking sideways on the cockpit and while looking down on the terrain, its not remotely smooth as I used to have before the patch.
I had reprojection always on. That one I had to change to disable/automatic to get it through.

saw someone posting around that had circumvented the patch to use it anyway but I cant find that post anymore.

What do you guys are running atm?

I have to say that I barely changed stuff since I upgrade from a 2070 super to a 3090ti. I'm/was just enjoying the smoothness... : ) 
 

[Baldrick33]

2 minutes ago, t-stoff said:

I'm feeling kinda of a drag while looking sideways on the cockpit and while looking down on the terrain, its not remotely smooth as I used to have before the patch.
I had reprojection always on. That one I had to change to disable/automatic to get it through.

saw someone posting around that had circumvented the patch to use it anyway but I cant find that post anymore.

What do you guys are running atm?

I have to say that I barely changed stuff since I upgrade from a 2070 super to a 3090ti. I'm/was just enjoying the smoothness... : ) 
 

To run it the old way remove the --force_OpenXR from the shortcut

I used the per application opencomposite method. So I just copied the openvr_api.dll to the DCS World OpenBeta\bin folder from here OpenComposite | OpenXR Toolkit (mbucchia.github.io) 

I guess it should work using the automatic method too.

Without --force_OpenXR it should try to start up in OpenVR and opencomposite will intercept this and start OpenXR as it did before the initial patch to add native OpenXR support.

 

[Sr.]

Curious:

 

Does this still control resolution or is it set via the OXR tool kit in game interface?

 

 

[mbucchia]

50 minutes ago, Sr. said:

Curious:

 

Does this still control resolution or is it set via the OXR tool kit in game interface?

 

 

This and OpenXR Toolkit Override Resolution do the same exact thing. 

The OpenXR Toolkit one, if enabled, will override any other setting though (as the name said). In other words, if you have any Override Resolution in OpenXR Toolkit, it takes precedence over what you had set in OpenXR Tools for WMR.

Edited January 29, 2023 by mbucchia

[II.JG1_Vonrd]

21 hours ago, edmuss said:

Although you don't technically

 

I just have the use VR headset box checked in options.

Sorry, I'm still confused. Do I just make the shortcut properties as shown?

• Target: "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin\DCS.exe" --force_enable_VR --force_OpenXR
• Start in" "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin"

What I currently have is:

• Target: "C:\Program Files\Eagle Dynamics\DCS World OpenBeta\bin\DCS_updater.exe"            (so that it checks for updates every time I start DCS)

No need to place --force_enable_VR --force_OpenXR in any .cfg or .lua file? 

And what about using Skatezilla's DCS Updater Utility?