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Automobilista 2 Custom Force Feedback - Overview & Recommendations

Discussion in 'Automobilista 2 - General Discussion' started by Karsten Hvidberg, May 30, 2020.

  1. TomP

    TomP Active Member

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    @hotak Try default file generated by the game. From description it "gives you raw & unaltered force as integrated by physics engine acting on steering rack of the vehicle physical model" .

    Here you have default file with modified bumpstop.
     

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  2. Danielkart

    Danielkart Well-Known Member

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    Stakanov and to everyone here in the forum. Stakanov I discovered something in the thread. If that's what I think, after these 2 codes (front axle connected to steering) there is another gamechanger in ffb. Oh my God :D:D I'll try to test it today and report back
    regards
     
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  3. Kuku

    Kuku Flying Kiwi AMS2 Club Member

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    Many moons ago, I experimented with porting Christians file into Ams2 , it was probably before there was even a damping slider in Ams2,
    I can’t remember how well it worked , but it’s possible.
    I will have to see if I can find the file on my old hardrive, it may help you identify what you need to get it working.
     
  4. Stakanov

    Stakanov Well-Known Member AMS2 Club Member

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    I am also experiencing these strange phenomena of changing sensations ... it happens when I restart the game, or when I change the car and then return to the same, or, when I leave I have an accident and then I restart the game ... having said that, if the my game does not throw a tantrum, with the latest experimental version n.6 by karsten I recently find this center decent which initially I would have given for exaggeration .....

    (center_full (blend (min 1.00 (* lfb_slider 12.0)) 0.6 0.3)

    ????? o_Oo_Oo_Oo_Oo_Oo_O

    :D:D:D
     
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  5. Kuku

    Kuku Flying Kiwi AMS2 Club Member

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    if you use/ have one of my previous tunes, you could copy the scrub and tear threshold values and also the frequency’s and scales and it will feel very similar.
    But try it in steps, do threshold first then effects .
     
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  6. Danielkart

    Danielkart Well-Known Member

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    oh my god it s incredibly accurate what I thought I m grinning at all times. Will post it to you today:D:D:D:D:D
     
  7. Danielkart

    Danielkart Well-Known Member

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    Tested with Mercedes Benz CLK LM (rather a difficult car to drive)
    Scrup comes before tear:

    (tear_threshold 0.3)
    (scrup_threshold 0.15)

    For effects scales:
    (tear_hard 0.3)
    (tear_frq_scale 1.25)
    (tear_scale 0) I could hardly believe it myself, set tear_scale to 0. But it takes away all the tire feel and roughing. It covers the whole ffb feeling enormously.

    Now the implementation at Scrub FX. 2 new lines

    (FL_scrub(*FL_scrub(blend(abs RL_scrub)1 0.3)))

    (FR_scrub(*FR_scrub(blend(abs RR_scrub)1 0.3)))

    This is for Stakanov's custom file, mine would be just one line. But with both Stakanov and my custom, it's just amazing. A tire feeling to dream of and full car control.
    Have fun and good night
     
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  8. Stakanov

    Stakanov Well-Known Member AMS2 Club Member

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    @Danielkart you'll be a fool but I'm going to the asylum with you!!! o_O:Do_O:Do_O:D
    it's true, I activate the tear_scale at any level and the tires doze off, I set tear_scale 0.00 and the tires return and excellent advice on the implementation of additional scrub lines. :D:D:D

    @Karsten Hvidberg i think, if we are not wrong, that here we need to investigate, if this mistake is irremovable we could think of eliminating the tear otherwise we must find a way to produce the effect while preserving the feeling of the tires. The problem is immediate when the tear_scale_effect is activated > 0 ... o_O

    I tested a little, but for now, I can only confirm that I am happy with this code for the center :)
    (center_full (blend (min 1.00 (* lfb_slider 12.0)) 0.6 0.3)

    and add that I have re-entered the MadnessBug code, maybe it will be placebo but I no longer feel the strange random variations in the driving sensations ;)

    Good night guys!!!
     
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  9. Danielkart

    Danielkart Well-Known Member

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    good morning Stakanov, good morning Karsten!
    hihi, Stakanov i know an institution here, should i make a reservation?:D:D It's unbelievable but true, I felt like a donkey yesterday too, but a happy donkey.
    Karsten, I don't think it's a mistake, on the contrary, it opens up great opportunities again. :)This tear_scale was responsible for a lot of bugs. It can also be that the fluctuations in the driving experience that you described caused it. I only had a little time yesterday to test more. Anyway, it's getting better and better, and I'm already seeing new possibilities with this extreme progression and these changes. Have a nice day, it's snowing here:eek:
     
  10. Karsten Hvidberg

    Karsten Hvidberg Well-Known Member

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    I am not sure what you mean by bugs reg. tear_scale?
     
  11. Stakanov

    Stakanov Well-Known Member AMS2 Club Member

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    @Danielkart and @ALL I'm not on my computer today and I will stay away from home so I can only search the archives on my mobile, in these spoilers there are the first version of tear implemented by Karsten ... you or someone could try if it works or if it covers also the feeling of rubber ..... perhaps some of these give important indications. ;)

    First tear...
    ###########################################################
    #
    # Tear FX
    #

    (tear_scale_front 0.3)
    (tear_scale_rear 0.5)

    (FL_tear (* 2 grip_fl FL_tear))
    (FR_tear (* 2 grip_fr FR_tear))
    (RL_tear (* 2 grip_rl RL_tear))
    (RR_tear (* 2 grip_rr RR_tear))

    (F_tear (max FL_tear FR_tear))
    (R_tear (max RL_tear RR_tear))

    (F_tear (max 0 (- F_tear 0.05)))
    (R_tear (max 0 (- R_tear 0.05)))

    (F_tearVol (power F_tear 1.7))
    (R_tearVol (power R_tear 1.7))

    (F_tearS (* tear_frq_scale (- 1.5 (* 0.2 F_tear))))
    (R_tearS (* tear_frq_scale (- 1.5 (* 0.2 R_tear))))

    (F_tearP F_tearP)
    (R_tearP R_tearP)

    (F_tearP (+ F_tearP (* dt F_tearS 0.4 750)))
    (R_tearP (+ R_tearP (* dt R_tearS 0.4 500)))

    (F_tear (+ (* 0.4 (sin (* 1 F_tearP))) (* 0.4 (sin (* 1.23 F_tearP)))))
    (R_tear (+ (* 0.4 (sin (* 1 R_tearP))) (* 0.4 (sin (* 1.23 R_tearP)))))

    (F_tear (* F_tear tear_scale_front F_tearVol))
    (R_tear (* R_tear tear_scale_rear R_tearVol))

    (tear_effect (* tear_scale 1.3 (+ F_tear R_tear)))
    (tear_effect (spring tear_effect 200000 1 1))

    A subsequent change to the tear took place in rfactor 4.1 with the insertion of the deadzone...
    ###########################################################
    #
    # Tear FX
    #

    (tear_scale_front 0.32)
    (tear_scale_rear 0.28)

    (FL_tear (* (if FL_bump_offroad 0 1) FL_tear))
    (FR_tear (* (if FL_bump_offroad 0 1) FR_tear))
    (RL_tear (* (if FL_bump_offroad 0 1) RL_tear))
    (RR_tear (* (if FL_bump_offroad 0 1) RR_tear))

    (F_tear (max FL_tear FR_tear))
    (R_tear (max RL_tear RR_tear))

    (tear_deadzone 0.07)
    (F_tear (max 0 (- F_tear tear_deadzone)))
    (R_tear (max 0 (- R_tear tear_deadzone)))
    (F_tear (/ F_tear (- 1 tear_deadzone)))
    (R_tear (/ R_tear (- 1 tear_deadzone)))

    (F_tearVol (power F_tear 1))
    (R_tearVol (power R_tear 1))

    (F_tearS (* tear_frq_scale (+ 0.5 (* 1.5 F_tear))))
    (R_tearS (* tear_frq_scale (+ 0.5 (* 1.5 R_tear))))

    (F_tearP F_tearP)
    (R_tearP R_tearP)

    (F_tearP (+ F_tearP (* dt F_tearS 0.4 750)))
    (R_tearP (+ R_tearP (* dt R_tearS 0.4 500)))

    (F_tear (+ (* 0.4 (sin (* 1 F_tearP))) (* 0.4 (sin (* 1.23 F_tearP)))))
    (R_tear (+ (* 0.4 (sin (* 1 R_tearP))) (* 0.4 (sin (* 1.23 R_tearP)))))

    (F_tear (* F_tear tear_scale_front F_tearVol))
    (R_tear (* R_tear tear_scale_rear R_tearVol))

    (tear_effect (* tear_scale 1.3 (+ F_tear R_tear)))
    (tear_effect (spring tear_effect 65000 1 1))

    And then in 4.3 it changed again in the first embryonic forms of the present one,,,,

    ###########################################################
    #
    # Tear FX
    #

    (FL_tear (max 0 (- FL_tear 0.3)))
    (FR_tear (max 0 (- FR_tear 0.3)))
    (F_tear (* 0.5 (+ FL_tear FR_tear)))
    #(tear (* 0.15 tear_scale (min 0.5 F_tear) (power (oscillator (* tear_frq_scale (min 1 F_tear) dt 50)) 5)))
    (oo oo)
    (o (oscillator (* tear_frq_scale (min 1 F_tear) dt 50)))
    (o (power o 1.8))
    (o2 (if (min 0 (* o (- o oo))) (* o 0.5) o))
    (oo o)
    (tear (* 0.15 tear_scale (min 0.5 F_tear) o2))
    (tear (spring tear (* tear_hard 700000) 1))
    (tear_effect tear)

    That's all, after these the latest version of tear took over (obviously I haven't published all the minor changes that have occurred in the individual values) ;)
     
    Last edited: Apr 2, 2022
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  12. Karsten Hvidberg

    Karsten Hvidberg Well-Known Member

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    Is there a problem?
     
  13. Kuku

    Kuku Flying Kiwi AMS2 Club Member

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    I’m almost caught up ;)

    the way than Daniel has implemented the scrub and tear isnt dissimilar to the way I’ve been using for some time, except for the zero tear scale. So it mostly feels very similar but does come through the wheel smoother,

    for me, tear has always been a snag feeling which is why I’ve always pushed it out to be at edge of grip threshold as a que that the tire is almost ready to give in.

    it also gives a good initial lock up feeling .

    some tires have more tack than other, and on some tracks with the tacky tires the tear can be quite rough feeling.

    making the scale low does smooth this out for sure. But there is a trade off that the tire sensation is quite same same throughout if you know what I mean.

    so I’m not saying I don’t like it at zero, I’m just saying there’s still a case for it to be used depending on taste.
    I’m not sure there’s any actual bug with it, it’s just an effect.
     
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  14. Danielkart

    Danielkart Well-Known Member

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    sorry karsten , English is not my mother tongue. I mean Tear_scale is responsible for the wrong scrub feeling and tear feeling. How long it's been you'd have to look up what Stakanov said. I usually never look back at what used to be. I test and go by my feelings and adjust values accordingly. But I'm sure it's been like this for a long time.
    regards Karsten
     
  15. Benzaah

    Benzaah Member

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    Ive been away for a week and this thread has blown up. I now have some testing to do. Thank you all :p
     
  16. Danielkart

    Danielkart Well-Known Member

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    hey kuku
    I have a different opinion than you. Tear_scale interferes with every value above 0 . But if you have a different feeling then use it
     
  17. Danielkart

    Danielkart Well-Known Member

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    :)
     
    Last edited: Apr 3, 2022
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  18. Kuku

    Kuku Flying Kiwi AMS2 Club Member

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    I don’t mind it at 0 at all, it feels fine.
    But trying to understand what you mean by a bug ?
    What values is it interfering with specifically.
    I’m sure Karsten would be able to correct it and it may improve everything if there is something unintentional happening.
     
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  19. Karsten Hvidberg

    Karsten Hvidberg Well-Known Member

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    It's weird how we all feel tear and scrub are better or worse, perhaps it's a thing that is more wheel base dependent than most other things... Great if these efforts can result in somethi g that works well for most...
     
    Last edited: Apr 2, 2022
  20. Kuku

    Kuku Flying Kiwi AMS2 Club Member

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    Yes this is always a strange anomaly, but I ( you may remember back in the day ) have always felt low scrub frequency a different way even with my old T300, compared to what you found best on your trusty simucube.
    but for me it has carried over to my DD. The preference is still the same.
     

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