Automobilista 2 Custom Force Feedback - Overview & Recommendations

Hey @Karsten Hvidberg,
I have tuned your 3.5 EXP file for use with Logitech bases (according to my personal tastes) ... I preferred to use the trail, I have activated the tightening in the general part and the values that manage the center of the wheel leaving the curves relaxation like you did, and modify only the curve of slip_crossover ... in the specific karts part, on the other hand, I disabled the tightening, used high values of center and centering and modified the relaxation of os and ds curves ... if it can be useful before the final 3.5 ( even just out of curiosity) do not hesitate to ask ... I can publish it here or even in pvt ... otherwise I will wait for your final file for which I am very curious.

Curious or stupid question, if I open the links (in the FFB file) of the functions and curves (relx, yaw, etc.) the starting values are a little different from those of the file ... they are different because they are the values you are using now in the Final 3.5???

Have a good day

 

Does the wet weather bug only affect the latest files or is it all of them?

 

I think the later rFuktor files, but no other files.

 

Yes, def. post your file as it will make it simpler to see if there's some preference that makes sense for the high end file as well.

The links in the file have values from rFuktor 3.4 or so, I did not make any change since the 3.5 exp. file. Also the links are static, so the values won't change even if I change something & you can adjust them exactly as you like & not worry about overwriting anything.

 

@Karsten Hvidberg
This is the tuned file for Logitech ... I find it very coherent for karts (although many things need to be fixed by Reiza) ... as you can see, leaving aside the usual quite personal values, I reduced a little the slip_crossover in the general part ... while in karts I disabled the tightening, I modified the curves of relx "os" and "ds", starting the relaxation as soon as possible, widening the relaxation as much as possible and setting a quantity consistent with the shape of the curve so as not to create jolts ... without tightening to make the center full I had to raise the centering and relax_center a lot

(over_steer_scale (if isKart 0.85 over_steer_scale))
(relax_os_line2_start_y (if isKart 0.0001 relax_os_line2_start_y))
(relax_os_pos (if isKart 0.00400 relax_os_pos))
(relax_os_width (if isKart 0.0400 relax_os_width))
(relax_os_coef (if isKart -0.030 relax_os_coef))

(under_steer_scale (if isKart 0.035 under_steer_scale))
(relax_us_line2_start_y (if isKart 0.0001 relax_us_line2_start_y))
(relax_us_pos (if isKart 0.00100 relax_us_pos))
(relax_us_width (if isKart 0.0100 relax_us_width))
(relax_us_coef (if isKart -0.010 relax_us_coef))

I tested everything with my usual in-game FFB values of 65-50-55-55, but I noticed that I could still raise something, I will set it precisely in your next final file 3.5

 

nice work @Stakanov , these curve values help a lot with the karts.

 

Thanks @Kuku Maddog, the idea came to me when I understood how it worked after Karsten's explanations ... the problem for me was to find a curve that relaxed as much as possible the immediate tendency of the Karts to spin when cornering (both in entrance, in distance and in exit) or for example when the kart turned over passing over the highest curbs, ... I found the solution by inverting the way to tune the file, i.e. first I create a relaxation curve that makes me drivable the car and then I tune all the remaining values to make all the other aspects coherent ...

The same thing I want to do in Karsten's final 3.5 also in the general part, first I will create a relaxation curve to make the Caterans and the other more swaying cars (Vintage, OldStock, SuperV8, etc.) drivable, then I will set the remaining parameters to make the 'FFB more informative about the same cars, ... finally, only later, I will make the remaining adjustments (in order) to make driving even more rigid cars like the Formula Reiza, Ultimate, Gen 2, the other Formula, the GT3-2-1, the P1-2-3-4, etc. .... let's see what comes out!!!

 

when I look at the graph, I can see what it does but have no reference to what is ideal , so I don’t really get it, then again I failed math

 

If this can help you, and if I interpret it correctly, do not look at it with a mathematical cut, but look at it in a graphic way ... you have two functions (the first OS_Scale and the second OS_Relax that relaxes), speaking of the second you have to mentally start from a borderline case that is this:



- Assume that the graph of the OS_Relax function is perfectly linear and inclined by 45 degrees (1: 1) as in the photo above ... in this condition (given the first starting OS_Scale function whatever its shape, linear or non-linear) the relaxation implemented by the second OS_Relax is applied in a uniform and linear way, and therefore by both increasing and decreasing the relaxation values in a fixed manner. Practically the OS_Relax function would be unnoticeable on the steering wheel when the force changes, because the final result will always be "OS_Scale - Relax_OS (linear relaxation)" ... you would get the same result by directly lowering the value of the OS_Scale function without relaxation.

If instead OS_Relax is not linear (therefore different from 1: 1), then the relaxation is applied in a variable way and in an exponential + or - way, depending on whether OS_Relax is concave or convex, and whether above or below line 1: 1 and this depends on the two functions or lines contained in OS_Relax (and joined by interpolation) and on the 4 variables we discussed earlier.

 

Ragazzi Buongiorno
Scusate ma sono poco pratico.
Il file aggiornato per simcube 2 è quello nel primo post?
Ho letto di vari aggiornamenti fino al 3.5 ma non riesco a capire se è sempre quello nel primo post aggiornato mano mano.
Grazie mille

 

Translation
Good morning guys Sorry but I'm impractical. Is the updated file for simcube 2 the one in the first post? I have read about various updates up to 3.5 but I cannot figure out if it is always the one in the first post updated gradually. Thanks so much

 

Only the latest Easter Fuktor and the one after.
3.1 and 3.2 working well, as well as the latest fixed version about 2 or 3 pages back posted by @Karsten Hvidberg

 

Working in the general part with 3.5 EXP...

The OS and US relaxation values also increased quite a bit also ...

(relax_os_line2_start_y 0.00001)
(relax_os_pos 0.00300)
(relax_os_width 0.0200)
(relax_os_coef -0.020)
(relax_us_line2_start_y 0.00001)
(relax_us_pos 0.00200)
(relax_us_width 0.0100)
(relax_us_coef -0.010)

this allowed me to raise the values in game from 65-50-55-55 to 68-58-58-58 (it's a big difference) ... to balance everything with this relaxation curves I had to slightly increase further the center and left unchanged relax_center ... close to the limit of clipping, but fortunately not noticeable on the steering wheel with a little increase of "static_force_reduction_hi_df"
Kart-part is the same as before

I just say that I have never had my Logitech so full and informative, I hear practically everything and I hope that the other Logitech owners have the same experience.

Meanwhile Karsten works on his new final file, I would not mind your judgments and feedback (even if negative) so I have more opinions to apply them to the next file ... hoping that @Karsten Hvidberg does not upset the whole functioning of the file, but who will live will see!!!

Logitech G920 and also for G29/G27/G25 (Date 20/04/2021)
GAIN 68* LFB 58 FX 58 DP 58.
*In the car setting, use +/- % of Gain for car to taste.

 

Unfortunately these values didn’t transfer to my close to stock t300 file well.

Just made things a bit delayed and unresponsive.

But then that’s not unexpected i guess, and
wasn’t your aim .

I’ve been playing around with not using tightening anymore and increasing centre full a bit . and still can’t conclude which centering method feels best , as what feels good on one car doesn’t always feel optimal on another.
neither are bad though and a combo also feels good.

 

I am not surprised by the difference in sensation between a G920 and a T300, but not even your first sensation that you experienced, as I was also initially perplexed on my G920 ... the relaxation is abundant and the file needs to be completely recalibrated, especially in the values in game and something in the FFB file.

If it helps you, I'll bring you my experience based on Logitech:
- to compensate for the relaxation, in addition to a slight increase in the GAIN and FX sliders, it was necessary to increase the LFB more markedly (which considerably reduces the feeling of vacancy caused by the relaxation itself), moreover, given the variations in the values, I had to re-tune the DP (power stering) to regain coherence on the wheels and on the steering wheel and thus regain the edge sensations;
- With these assumptions, the feeling is still too soft, so (speaking of the values in the FFB file), I preferred to let the tithening work (consistent calibration on the G920 was not possible for me without it) but you could try to modify the range a little up and especially the falloff down (try low value +/- 1/10 or 2/10 to anticipate the tightening, if i not mistake you use 1/4);
- Having done the above, I increased the center a little without increasing the center_relax (in your case it could help you lower it) and finally review all the other aspects as usual ... privileging the hardness, the definition and the road effects that go into antagonism with relaxation.

Thanks @Kuku Maddog for the feedback , try if you have time a similar approach, in case it goes back to your previous values ...

 

Hey Kuku, don't mean to hijack this thread but I'm new here and can't seem to private message. I realized you are also a fellow T300 owner and would like some help. Been trying to read this thread to find solutions but my head is spinning.

I noticed the rfuktor file is typically meant for a logitech and was wondering if you could help direct me to a file that is t300 specific?

 

The rFuktor files Karsten posts are generally for all wheels, only stakanov’s tuned files are for Logitech.

The latest rfuktor 3.5 should be on the first page of thread I think. there’s an older file that I tuned in my profile but it’s not the latest and may have a rain bug .
edit : now updated

 

my latest tune ( prob not final but close enough)
@shizraticus

 

Hey @Kuku Maddog you can try this for your T300???

Relax OS

Original Karsten


Modified curve


Relax US

Original Karsten


Modified curve



Try to use this curves with thitening or without and with various center and center_relax .... if necessary, adjust the LFB and the DP

(relax_os_line2_start_y -0.008)
(relax_os_pos 0.0090)
(relax_os_width 0.0450)
(relax_os_coef -0.015)

(relax_us_line2_start_y -0.0008)
(relax_us_pos 0.0000)
(relax_us_width 0.0100)
(relax_us_coef -0.010)

 

Hey @Karsten Hvidberg ! I've been messing with the latest high end file and i have to say im very impressed, and want to leave some feedback. When testing force feedback in a sim i always try to drift first or just generally go over the limit whenever i can. While the wheel self aligns properly at low angles, approaching lock the self aligning simply stops. For example, the street Camaro has 900 degrees, and the self aligning seems to stop just a bit before 720, from there on, it feels like the caster of the car just disappears. Another thing i really like is how the wheel centers back perfectly when straightening out. If you could maybe take a look at self aligning through the whole steering range it would be awesome. If you need some help testing, let me know. Thanks for your work.