OpenXR API DLL ACC FFB Initiation failure

Sam KilianSam Kilian Member
edited October 6 in Third-Party Software

Hi everyone,


I try to use OpenXR instead of SteamVR (OpenVR) for ACC cause it's way more modern. Better visuals, better perfomnace etc.

In order to be able to use it, you need to replace the original SteamVR DLL within the ACC engine folder, with the one from OpenXR. Unfortunately this DLL failures to initiate the FFB on my DD2 Base. It seems in the original SteamVR are codelines for the Fanatec Software, that are missing in the DLL from OpenXR.

Is there any workaround for this Issue? Or alternatively anyone here, who knows which lines in the SteamVR DLL initiate the FFB? So that can I provide them to the Devs of OpenXR, that they can implement them to their DLL aswell?


Thank you for your attention.


Greetings from Germany

Comments

  • Allan LehtlaAllan Lehtla Member

    ?

    FFB comes from directX input

    you should check the game settings

  • Sam KilianSam Kilian Member

    Hi,


    I didn't changed anything in the Gamesettings, just the DLL for SteamVR to OpenXR. When I change it back to the original DLL from SteamVR, the FFB is immedately back.


    It must be the DLL.

  • Allan LehtlaAllan Lehtla Member

    perhaps it lose game focus and then game automatically disable the ffb

    some games have that feature

  • Sam KilianSam Kilian Member
    edited October 6

    Hi,


    could you please elaborate what you mean by "losing game focus"?


    The modified DLL causing ACC bootorder to lose its loading order for initiating the game and its subsystems?

  • Allan LehtlaAllan Lehtla Member
    https://forum.fanatec.com/discussion/comment/130829#Comment_130829

    hard to say exactly , but game does make link between device, if that link is killed all ffb effects goes lost

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