# ACC + Openxr + Open Composite **URL:** \ **Category:** Game On!\ **Created:** [June 19, 2023, 10:24pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839 "2023-06-19T22:24:51Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![Yata\_PL](https://forum.openmr.com/letter_avatar_proxy/v4/letter/y/a87d85/32.png) [@Yata\_PL](https://forum.openmr.com/u/Yata_PL)\ **Post date:** [June 19, 2023, 10:24pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/1 "2023-06-19T22:24:51Z")
Hello, Anyone know how to setup this sim without steamvr using only pimaxr/openxr and/or open composite? I tried many setups and only steamVR mode is working but I cant use openvr toolkit in that way. ---
**Author:** ![Heliosurge](https://forum.openmr.com/user_avatar/forum.openmr.com/heliosurge/32/28073_2.png) [@Heliosurge](https://forum.openmr.com/u/Heliosurge)\ **Post date:** [June 19, 2023, 11:31pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/2 "2023-06-19T23:31:40Z")
From my understanding this night be an issue with ACC. If it has not been updated to use OpenXR; @mbucchia as the Author of Pimax OpenXR driver can likely best answer this. ---
**Author:** ![hammerhead\_gal](https://forum.openmr.com/user_avatar/forum.openmr.com/hammerhead_gal/32/24859_2.png) [@hammerhead\_gal](https://forum.openmr.com/u/hammerhead_gal)\ **Post date:** [June 20, 2023, 6:54am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/3 "2023-06-20T06:54:51Z")
Hi： Have you downloaded PimaxXR too? You may check this guide; > **[How To Run OpenXR On The Pimax Crystal | Pimax](https://pimax.com/how-to-run-openxr-on-the-pimax-crystal/)** > > OpenXR is an open standard that provides high-performance access to AR and VR (collectively known as XR, hence the name). ---
**Author:** ![Heliosurge](https://forum.openmr.com/user_avatar/forum.openmr.com/heliosurge/32/28073_2.png) [@Heliosurge](https://forum.openmr.com/u/Heliosurge)\ **Post date:** [June 20, 2023, 2:16pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/4 "2023-06-20T14:16:42Z")
Yata is looking more for title specific in this case Acc which might not have been updated to properly be able to use openxr. Mbucchia mentioned this has slowed part of the problem with getting OpenXR rolling quicker with some of the bigger studios. ---
**Author:** ![Lnick](https://forum.openmr.com/letter_avatar_proxy/v4/letter/l/45deac/32.png) [@Lnick](https://forum.openmr.com/u/Lnick)\ **Post date:** [June 20, 2023, 8:47pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/5 "2023-06-20T20:47:02Z")
Nope. It works fine. You need open composite and run it and set it for all sw or just to acc. Install Pimax-OpenXR and it is easy to use. After install OpenXR and the tool kit. Start Acc without steamvr and it will work. In those sw site’s you will find several information from dev including a table of compatible games and Acc is validated with FFR as well if you have eye tracking. Good luck ---
**Author:** ![dogbite](https://forum.openmr.com/user_avatar/forum.openmr.com/dogbite/32/1793_2.png) [@dogbite](https://forum.openmr.com/u/dogbite)\ **Post date:** [June 21, 2023, 1:56pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/6 "2023-06-21T13:56:40Z")
> [@Lnick](#): > > Acc is validated with FFR as well if you have eye tracking. FFR should work without ET as long as you have an RTX card ---
**Author:** ![Lnick](https://forum.openmr.com/letter_avatar_proxy/v4/letter/l/45deac/32.png) [@Lnick](https://forum.openmr.com/u/Lnick)\ **Post date:** [June 21, 2023, 2:27pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/7 "2023-06-21T14:27:53Z")
Sorry. My mistake. DFR that needs ET. I use FFR even with drolonp1 since the result is very good. ---
**Author:** ![Heliosurge](https://forum.openmr.com/user_avatar/forum.openmr.com/heliosurge/32/28073_2.png) [@Heliosurge](https://forum.openmr.com/u/Heliosurge)\ **Post date:** [June 21, 2023, 7:38pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/8 "2023-06-21T19:38:44Z")
Once you add ET; FFR becomes DFR. 🍻😉👍✨ ---
**Author:** ![Yata\_PL](https://forum.openmr.com/letter_avatar_proxy/v4/letter/y/a87d85/32.png) [@Yata\_PL](https://forum.openmr.com/u/Yata_PL)\ **Post date:** [June 21, 2023, 8:08pm UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/9 "2023-06-21T20:08:11Z")
Right now it doesn’t work for me at all and I have all components mentioned by hammerhead\_gal Configured and switched to openx xr and open composite. What ACC file do you use to get it running? I have this to choose: ![image](https://community.openmr.com/uploads/default/original/3X/7/7/77871718c14aab6f447fcacdcea5f77611f26ee1.png) and don’t see ACC in app configuration in open composite and openVR toolkit. What should I do ? ![image](https://community.openmr.com/uploads/default/original/3X/9/2/92210ec820347f75b009a5618e1dbeb842286830.png) Next question - what Pimax HMD have you tried with ACC and the stuff above? ---
**Author:** ![mbucchia](https://forum.openmr.com/letter_avatar_proxy/v4/letter/m/c37758/32.png) [@mbucchia](https://forum.openmr.com/u/mbucchia)\ **Post date:** [June 22, 2023, 3:40am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/10 "2023-06-22T03:40:57Z")
Pimax Client 1.10 and above broke ACC with PimaxXR. You can either downgrade to Pimax Client 1.9 or wait for a newer version of PimaxXR with a workaround to Pimax Client broken frame timing. ---
**Author:** ![karajzk](https://forum.openmr.com/letter_avatar_proxy/v4/letter/k/9dc877/32.png) [@karajzk](https://forum.openmr.com/u/karajzk)\ **Post date:** [June 22, 2023, 6:39am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/11 "2023-06-22T06:39:55Z")
Somehow it works for me in the crystal with Pimax client 1.12, openxr 0.3.7. However I don’t use the opencomposite global switcher. Downloaded the openvr\_api.dll from [https://znix.xyz/OpenComposite/download.php?arch=x64&branch=openxr](https://znix.xyz/OpenComposite/download.php?arch=x64&branch=openxr). Placed the file in Assetto Corsa Competizione\Engine\Binaries\ThirdParty\OpenVR\OpenVRv1\_5\_17\Win64 renaming the original in the folder as backup. And starting ACC from steamvr, choosing openvr mode. One more thing I noticed, sometime ago I set the fps limit inside ACC to 91 fps, I don’t know if that is relevant or not. ---
**Author:** ![SpencerGrant](https://forum.openmr.com/letter_avatar_proxy/v4/letter/s/48db29/32.png) [@SpencerGrant](https://forum.openmr.com/u/SpencerGrant)\ **Post date:** [June 22, 2023, 8:02am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/12 "2023-06-22T08:02:58Z")
But the issue is that client 1.12 broke the smart smoothing by reintroducing the chaotic 1/2 → 1/3 framerate reprojection. With a 2080ti for exemple I can only play ACC with 1/2 framerate smart smoothing at 90hz ---
**Author:** ![karajzk](https://forum.openmr.com/letter_avatar_proxy/v4/letter/k/9dc877/32.png) [@karajzk](https://forum.openmr.com/u/karajzk)\ **Post date:** [June 22, 2023, 8:19am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/13 "2023-06-22T08:19:29Z")
I have not tried smart smoothing with acc, but with MSFS and DCS works for me very well staying at 1/2, 1.12 client and 0.3.7 pimaxxr. Turbo mode on in Pimaxxr 0.3.7 and Turbo mode off in openxr toolkit. Smart smoothing on in pimax client or with pimax\_cli.exe -int dbg\_asw\_enable 1 And forcing 1/2 with pimax\_cli.exe -int dbg\_force\_framerate\_divide\_by 2 ---
**Author:** ![Yata\_PL](https://forum.openmr.com/letter_avatar_proxy/v4/letter/y/a87d85/32.png) [@Yata\_PL](https://forum.openmr.com/u/Yata_PL)\ **Post date:** [June 22, 2023, 10:43am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/14 "2023-06-22T10:43:49Z")
I only see PimaxXR-0.3.4.msi ? How did you recived 0.3.7 ? [https://github.com/mbucchia/Pimax-OpenXR/releases/download/0.3.4/PimaxXR-0.3.4.msi](https://github.com/mbucchia/Pimax-OpenXR/releases/download/0.3.4/PimaxXR-0.3.4.msi)). ---
**Author:** ![karajzk](https://forum.openmr.com/letter_avatar_proxy/v4/letter/k/9dc877/32.png) [@karajzk](https://forum.openmr.com/u/karajzk)\ **Post date:** [June 22, 2023, 11:01am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/15 "2023-06-22T11:01:16Z")
It is a beta, it can be downloaded from the openxr toolkit discord. [https://discord.gg/WXFshwMnke](https://discord.gg/WXFshwMnke) It is a pinned message in the pimax technical channel. ---
**Author:** ![III2fast4UIII](https://forum.openmr.com/user_avatar/forum.openmr.com/iii2fast4uiii/32/17303_2.png) [@III2fast4UIII](https://forum.openmr.com/u/III2fast4UIII)\ **Post date:** [July 14, 2023, 12:58am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/16 "2023-07-14T00:58:45Z")
have you been able to make it work yet ? I am on the new PimaxXR 0.4.0 ? ---
**Author:** ![Yata\_PL](https://forum.openmr.com/letter_avatar_proxy/v4/letter/y/a87d85/32.png) [@Yata\_PL](https://forum.openmr.com/u/Yata_PL)\ **Post date:** [July 19, 2023, 9:39am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/17 "2023-07-19T09:39:08Z")
yes but frames times was broken - inconsistent ---
**Author:** ![system](https://forum.openmr.com/uploads/default/original/2X/1/19863a63bd0f452a38669829a92f279c59ddd490.png) [@system](https://forum.openmr.com/u/system)\ **Post date:** [September 17, 2023, 9:39am UTC](https://forum.openmr.com/t/acc-openxr-open-composite/40839/18 "2023-09-17T09:39:53Z")
Closed on September 17, 2023, 9:39am UTC This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.