Baseline Wheel FFB Values - Google Sheet & FCM. Universal

[skoader]

I was hoping to have confirmation from SMS on some of these algorithms before releasing my tools, but it's been a long wait and things are really kicking off now so here it is.

PCars Force Curve Modifier 1.2
Download the latest version here

The program features a wheelcheck like linear force test and allows you to manipulate the force curve with sliders akin to those in-game and see the effect on your wheels response graphed in realtime.

Other key features -

• Iterative compression test to find the best R² value for your wheels response curve. In most cases this should be used as a starting point.
• Perform the force test with your resulting compressed forces.
• Export selected data into a csv file for those who like to dig a little deeper.
• Import wheelcheck linear force test csv files. Select multiple files when importing and they will be averaged into a single result.

Thanks of course to everyone who has contributed to these discussions and to those who were kind enough to assist with some brief testing.

If you find any issues, let me know. Hope it's useful.

Known issues -
The linear force test doesn't work well with some Fanatec wheels. You can however still import wheelcheck's linear force test results.

[hehehemann]

Brilliant Skoader!! The tool is well designed and makes it all so much easier. Tested out the calculated settings in game and they felt really good.

[Nick Claydon]

Excellent work Skoader !

This makes things so easy, Thank you for your hard work.

[raizuken]

This is amazing. Thank you!

Just a quick question. What i need to to to enable cliping sliders?

[konnos]

@raizuken You need to pay 1 million euros!

[BrightDark]

Hello! T300RS - PS4 user here.

I've been using Jack Spade's settings for a while. Very satisfied, would have been lost in tweaking without them!

The wheel really came alive when I found this thread, and I could set appropriate settings for DRR and Scoop.

Edit december 18th:
I have had time recently to test, and the basis for the settings are:
- Master FFB 100, Tire Force 75 (Jack Spades advice for global settings)
- Jack Spades classic/standard settings v2.6 (I've previously used Fy SoPlateral).
- Diluvians sheet (with wheelchecker)

Set 1 - Steering Gain 0,75: (lowest force at the wheel - "weak FFB")


Set 2 - Steering Gain 0,80:


Set 3 - Steering Gain 0,85: ("medium FFB")


Set 4 - Steering Gain 0,90:


Set 5 - Steering Gain 1,00: (highest force at the wheel - "strong FFB")
Note: The red line is intentionally not linear. With Scoop Reduction set higher, I couldn't feel that much of a difference from SG 0,90...


The log2 tests (wheelchecker) were done with "Overall strenght of all forces" @75% (Thrustmaster Control Panel).
The reason is that this is the default setting, and it's not certain how this "parameter" is affected on the PS4.
All other settings (Constant - Periodic - Spring - Damper) @100%. This also is default.

#1: One way to reduce oscillation/wheel wobble: lower DRR (the result is a little more deadzone), or increase DRF.
Another way is to reduce Master Scale & SoPScale per car (set theese two parameters to the same level).
A larger reduction of MS & SoPS might alter the balance of the car-ffb.

#2: When Steering Gain is increased, Scoop Reduction must be set higher to maintain a linear response.
Because of this, the force felt at the wheel isn't that much stronger from set 1 to set 2 to set 3, and so on.


Full settings, from SG 0,75 to SG 1,00:

Main FFB-setting: 100 (Jack Spade global setting)

Set 1 - - - - - - / - - Set 2 - - - / - - Set 3 - - -/ - - Set 4 - - -/ - - Set 5 - - - /
TF: 75 - - - - - / - - 75 - - - - -/ - - 75 - - - - -/ - - 75 - - - - / - - 75 - - - - - / (Jack Spade global setting)
PWM: 0 - - - - / - - - 0 - - - - / - - - 0 - - - - / - - - 0 - - - -/ - - - 0 - - - - -/
PWMS: 0 - - - / - - - 0 - - - - / - - - 0 - - - - / - - - 0 - - - -/ - - - 0 - - - - -/
WPS: 0,04 - - / - - - 0,04 - - -/ - - - 0,04 - - / - - - 0,04 - - / - - - 0,04 - - - /
DRR: 0,11 - - / - - - 0,11 - - - / - - - 0,11 - - / - - - 0,11 - - / - - - 0,09 - - - / (values from sheet and testing)
DRF: 0,016 - / - - - 0,016 - - / - - - 0,017 - -/ - - - 0,017 - -/- - - 0,016 - - / (values from sheet and testing)
LSc: 0,00 - - /- - - 0,00 - - - / - - - 0,00 - - -/ - - - 0,00 - - /- - - 0,00 - - - /
LSt: 1,00 - - -/- - - 1,00 - - -/ - - - 1,00 - - -/ - - - 1,00 - - /- - - 1,00 - - - /
LD: 1,00 - - - /- - - 1,00 - - -/ - - - 1,00 - - -/ - - - 1,00 - - /- - - 1,00 - - - /
RAG: 1,50 - - / - - - 1,50 - - -/ - - - 1,50 - - -/ - - - 1,50 - - /- - - 1,50 - - - / (Jack Spade global setting)
RAB: 0,10 - - / - - - 0,10 - - -/ - - - 0,10 - - -/ - - - 0,10 - - /- - - 0,10 - - - / (Jack Spade global setting)
RAC: 0,85 - - / - - - 0,85 - - -/ - - - 0,85 - - -/ - - - 0,85 - - /- - - 0,85 - - - / (Jack Spade global setting)
SK: 0,78 - - - / - - - 0,79 - - -/ - - - 0,77 - - -/ - - - 0,77 - - / - - - 0,77 - - -/ (values from sheet and testing)
SR: 0,18 - - - / - - - 0,22 - - -/ - - - 0,25 - - -/ - - - 0,29 - - / - - - 0,29 - - -/ (values from sheet and testing)
SC H: 0,00 - -/ - - - 0,00 - - -/ - - - 0,00 - - -/ - - - 0,00 - - / - - - 0,00 - - -/
SC F: 0,00 - -/ - - - 0,00 - - -/ - - - 0,00 - - -/ - - - 0,00 - - / - - - 0,00 - - -/
MSS: 0,50 - -/ - - - 0,50 - - -/ - - - 0,50 - - - / - - - 0,50 - - / - - - 0,50 - - -/
LSSS: 0,75 - / - - - 0,75 - - - / - - - 0,75 - - - / - - - 0,75 - - / - - - 0,75 - - -/
LSSC: 0,55 - / - - - 0,55 - - - / - - - 0,55 - - - / - - - 0,55 - - / - - - 0,55 - - -/
SG: 0,75 - - -/ - - - 0,80 - - - / - - - 0,85 - - - / - - - 0,90 - - / - - - 1,00 - - -/ (desired force strength)

[poirqc]

@raizuken You need to pay 1 million euros!

To me!

[ducks and run]

Hi poirqc, I guess you´re right.

Still experimenting. Linear is a very good foundation to start from.
For my personal taste, a slightly convex curve is livelier and feels better.
Might as well end up with vanilla "Recruit" without waveshaping...

At the end of the day, your personal taste win. That's the beauty of the system, and it's "uglyness", is that you can tune it to your taste. It's just way too easy to get lost!

Good luck.

[poirqc]

I was hoping to have confirmation from SMS on some of these algorithms before releasing my tools, but it's been a long wait and things are really kicking off now so here it is.

PCars Force Curve Modifier 1.1
Download the latest version here

The program features a wheelcheck like linear force test and allows you to manipulate the force curve with sliders akin to those in-game and see the effect on your wheels response graphed in realtime.

Other key features -

• Iterative compression test to find the best R² value for your wheels response curve. In most cases this should be used as a starting point.
• Perform the force test with your resulting compressed forces.
• Export selected data into a csv file for those who like to dig a little deeper.
• Import wheelcheck linear force test csv files. Select multiple files when importing and they will be averaged into a single result.

Thanks of course to everyone who has contributed to these discussions and to those who were kind enough to assist with some brief testing.

If you find any issues, let me know. Hope it's useful.

Thanks alot skoader, this is another tool that can be handy to calculate Scoops and Deadzone. I could understand why SMS wouldn't talk about something that comes from another studio(wheelcheck) but since your program is build from the ground up for pCars, maybe it will change the situation.

But anyway, i think we are to a point where people can get nice force feedback without messing with it for months without understanding what's going on.

I lift my hat off to you Diluvian and skoader, all of this couldn't happend if you didn't write those 2 good tools!

[Diluvian]

@skoader, very nice tool You said you wanted some confirmation of your maths - did you show them somewhere? your maths seem to be similar to mine of the sheet (same results). Cause there is no greyed-out DRF, do you intend to implement it someday, too (as far as SMS tells us what's behind)?

What's your programming language? C++, Java?

[Ace Diesel]

Here is some additional data from the Accuforce Pro Wheel with standard rim, programmed with latest Simcommander Beta 4.0.0.34-15, for setting "Responsive":



@ skoader:
The graph-related part and automated calculation of settings work like a charm.
My Accuforce Wheel is not detected, though.

Nevertheless: slick tool!! Hats off to you!