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How do i get to work my Logitech g27 Force Feedback?

Discussion in 'Troubleshooting: Bugs, Questions and Support' started by gmaksi83, Nov 10, 2014.

  1. gmaksi83

    gmaksi83
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    Aug 5, 2013
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    How do i get to work my Logitech g27 Force Feedback?
    Force Feedback basics (disabled by default), not working out of the box yet, might damage your hardware, [ico=exclamation]try on your own risk. FF is currently always on for the first wheel and it might be inverted depending on your hardware.
    Not recognized G27
    e8bac82de5.jpg 5f0588d601.png fb768947c4.png
    G27 inputmap is there *.cs

    Update....
    here it is.
    hydros.lua
    7998f74739.png
    M.enableFFB = false - true
    just careful,i can't say this is force feedback, for me it is just force on the wheel:) but something began, and can be better further.


    Here is my hydros.cs file now i feel lite FFB on the wheel. when the car sliding left the force turn the wheel inverse (right).
    set the wheel FFB strength to 50% in onw profile.
     

    Attached Files:

    #1 gmaksi83, Nov 10, 2014
    Last edited: Nov 10, 2014
  2. Coodwhaty

    Coodwhaty
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    Aug 12, 2013
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    1
    Thanks for this post mate!

    I have tried out FFB, ofc started with lowest possible force settings and slowly rising them. I've found force setting good enough to start feeling it without my wheel freaking out. There's also debug tool for in game gui. Here starts funny thing. If you turn wheels just a little let's say left ( standing in place ) force will keep rising. Same thng is for driving. I'm not sure what kind of magic is that :p

    Anyway It's great to see some progress on implementing force feedback :D

    //Edit

    Just checked higher force settings, with these it seems to work better ( no constantly rising force ). Bumps and terrain irregularities are not really noticeable.
     
    #2 Coodwhaty, Nov 10, 2014
    Last edited: Nov 10, 2014
  3. gmaksi83

    gmaksi83
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    The same problem here, it's very frustrating for me. Which directin you turn the wheel firt the force will keep rising the same direction, it feels like the hydro deformed (tie rod deformed);)
    If you're bored, try the game with the original FFB values. Take care of your hands would break:D
    I hope in future come some good improvement!

    Edit.....
    Tomorrow if i get more time, i will try to improve the ffb value, hope with better results.
     
    #3 gmaksi83, Nov 10, 2014
    Last edited: Nov 10, 2014
  4. estama

    estama
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    Developer
    BeamNG Team

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    The hydros.lua that was uploaded is quite old. Try the attached.

    You might need to increase the:

    M.wheelFFBHFCoef
    M.wheelFFBLFCoef
    M.wheelFFBForceLimit (stay below 10)

    values in the file to find values that work for G27 (i use a thrustmaster tx with very conservative values) .

    Also, remember to set your wheel at 900 degrees and 100% force (don't go over it, it becomes very unstable).

    Have fun.


    {{ REMOVED FILE - simply update now }}
     
    #4 estama, Nov 11, 2014
    Last edited by a moderator: Nov 11, 2014
  5. DrowsySam

    DrowsySam
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    I had some nice settings once, but I forgot to save them(Probably wouldn't work now anyways). This was the first few days of Force Feedback development. I'll have a play around and find some nice settings for the G27.

     
    #5 DrowsySam, Nov 11, 2014
    Last edited by a moderator: Oct 21, 2015
  6. Goosah

    Goosah
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    Global Moderator
    BeamNG Team

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    Aug 30, 2013
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    I've noticed that if I alt tab or change windows while there is force acting on the wheel, that force gets "stuck" in the wheel, the game forgets about it but the wheel doesnt? and will pull the wheel all the way to lock. It may also happen when resetting vehicle, not sure. But be careful not to do that. I have to unplug the controller and plug it back in to stop it (Driving Force Pro 900 deg).

    Overall I am getting the best results with the Grand Marshall. Bumps and curbs feel great, it steers into the slide on its own and centers well. There are a few incorrect behaviours, but it's already adding to the experience quite a bit. On other vehicles the effects don't seem nearly as strong or intuitive as with the Grand Marshall, not sure if it's a product of the suspension geometry or something else at play.
     
  7. tdev

    tdev
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    Developer
    BeamNG Team

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    updated the game, contains a newer hydros.lua now.
     
  8. gmaksi83

    gmaksi83
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    Joined:
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    Hi, Now I had time to test the new FFB. and I got some nice values. here it is my G27 hydro.lua FFB values, can try and compare how you like, test with attached car.
    hydro.zip - modified hydro.lua (same file like under fullsize folder)
    Fullsize.zip - modified F Suspension (more realistic), F diff, 24 ray wheels.

    - - - Updated - - -

    Thanks for the new file and the info, but it was not possible to test, because I worked today, and it was too late when i get home.:(
    but now i reinstalled the game to get all new file, and tuned the FFB values, and got some nice effect.
    great work on the FFB, keep up the good work!
    I have attached the fullsize, with modified front suspension and 24ray wheels if you want, you can check the modified F suspension how it work, maybe good solution to fix the original, the original F suspension I think is buggy, the lower arm can not be soft on real car.

    logInfo("yay, force feedback is available :D")
    Updated Files.....please download again.
    Now the FFB Have fast reaction and sensitive.
     

    Attached Files:

    #8 gmaksi83, Nov 11, 2014
    Last edited by a moderator: Oct 21, 2015
  9. WacKEDmaN

    WacKEDmaN
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    Joined:
    Aug 15, 2013
    Messages:
    60
    these settings seem to work well on my DFGT
    Code:
    -- The direction of the real wheel's FFB
    M.wheelFFBaxisdir = -1
    -- The FFB High frequency coefficient
    M.wheelFFBHFCoef = 150
    -- The FFB Low frequency coefficient
    M.wheelFFBLFCoef = 15000
    -- The FFB steady force limits (in Newton)
    M.wheelFFBForceLimit = 10
    -- FFB damping percent (values from 0 to 1)
    -- for example for 10% set it to 0.1
    M.wheelFFBDampingPercent = 0.05
    -- FFB smoothing
    M.wheelFFBSmoothing = 50
    
     
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