[REL] OpenOVR: possible performance boost for Oculus owners.

This is now working, see here: https://forum.sector3studios.com/in...ce-boost-for-oculus-owners.11535/#post-162806

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https://www.reddit.com/r/oculus/comments/9i7s16/openovr_released_play_steamvr_games_without/ This might improve VR performance on Oculus for SVR games by forwarding Steam VR API calls directly to Oculus SDK, with less overhead due to no Vive specific tweaks. rF2 guys made it work already. It might also work for R3E, if it doesn't, Dev is responsive and might fix it, if one has time to try it and report problems. Just thought someone might be interested for both rF2 and R3E.
reddit
r/oculus - OpenOVR Released - play SteamVR games without SteamVR!
411 votes and 202 comments so far on Reddit

Initial results for rF2 look promising, I haven't tried it yet though.

 

That's very good, SteamVR is a mess, i'd gladly go directly to Oculus.

 

We will see how well this will end up supported. I was skeptical initially, but folks on rF2 Discord report reduced frametimes, which is exactly what we need. I really hope this flies.

 

Oh wow, looking forward to giving this a shot. SteamVR isn't too bad on my system but if I could get rid of that annoying little steam VR window that always gets in my way at some point during a Raceroom session I'd be a happy camper. Improved performance wouldn't be unwelcome either ofcourse

 

Uncheck the always on top option of the SteamVR window and you're good to go.

For me it seems that SteamVR doesn't have as much impact as Oculus Home. Disabled the Oculus Home at Startup, so I've only one system up and runing while driving. Very liking the VR Dashboard (disliking the SteamVR Home starting every time...)
But if there's a speed up, I would be happy as well.
Yesterday I've thought that the graphics quality is better than before. But I don't know why, hadn't changed anything except that I don't start R3E with the sturtup commands but with the Steam VR settings.

 

Not very good news guys. It looks like this approach won't work with R3E due to DX9.

 

No wonder, tried almost every combination of copying the openvr_api.dll but like you said, nothing worked. Where'd you see it being due to DX9? Works great w/ rF2.

 

I spoke to author and looked at code. There are DX11/DX12 related wrappers, but no DX9.

 

Skill no dx9 wrappers ?

 

I am working on it, expect news in next 2 weeks.

 

Guys, I implemented Raceroom support in OC (as well as rF2 track loading screen and ability to run scripts on startup), but merge into main binary takes longer than I expected. Stay tuned, I'll update this thread when main binary gets my work.​

 

I really appreciate your hard work on this! Looks nice.

 

Just so that you know - do not expect miracles. OC did not make much difference in R3E (although there's difference in anti aliasing). But ability to uninstall SVR alone is worth it to me

 

Latest instructions here: https://forum.sector3studios.com/in...st-for-oculus-owners.11535/page-2#post-165848

enableCubemap should be False for Raceroom.

-----original post---

Latest version of OC supports Raceroom! I liked the idea behind OC, and I always liked computer graphics, so, as a fun challenge, I decided to try adding Raceroom support. I worked with OC developer ZNix and successfully made OC work with R3E.

Note that I am not seeing much improvement/difference compared to SVR, but to me just the fact that SVR no longer starts is worth it.

Binary provided as is, use at your own risk.

Get it here: https://gitlab.com/znixian/OpenOVR

To install:
• Back up original open_ovr.dll under "Steam\SteamApps\common\raceroom racing experience\Game\x64\" folder
• Drop OC's implementation of open_ovr.dll into Raceroom\x64 folder.
* Create opencomposite.ini next to open_ovr.dll and place those lines into it:

supersampleRatio=2.0
enableAudio=false
useViewportStencil=true
threePartSubmit=true
enableLayers=true
dx10Mode=true

* Adjust supersampleRatio to your liking.

• Feel free to join OC Discord for news and updates: https://discordapp.com/invite/zYA6Tzs

Known issues/limitations:
- in theory, you need Win8 or Win7 with KB2670838 or later OS for this to work, but I only tried Win10 x64 1809
- To me it seems that there's some difference between SVR SS and OC SS (PPD) visually, so you might have to review your settings.

One more interesting thing is to see how those two settings affect Raceroom:
threPartSubmit=true/false
useViewportStencil=true/false
Share your findings!

Enjoy R3E Oculus without Steam VR! And if you like how it works spread the word.

 

Make sure to set enableLayers=true
On opencomposite.ini

 

Thanks! Are these also put in opencomposite.ini?
Works well in rF2, hope it does too here in R3E, will test soon.

Oh, BTW, Discord invite appears invalid.

 

https://discordapp.com/invite/zYA6Tzs
I tested it works in merged branch, but there are still some merge issues, I'll let this thread know when it is done done

 

Clarification... I've maintained supersampling under launch options (-vr 1.9). Should we maintain it here, or just in the .ini file, or it doesn't matter?

Thanks.

 

I don't think game's switches will work. You have to use OC's ini file, here's mine:
supersampleRatio=2.0
enableAudio=false
useViewportStencil=true
threePartSubmit=true
enableLayers=true

opencomposite.ini next to .dll.

Please note, that this .ini is not final, there's a regression caused during the merge, so I will keep this thread posted if .ini will change.

 

Important update:
For Raceroom, you have to also use:
dx10Mode=true

flag.