LUT Generator for AC for Assetto Corsa
Small program that creates a force feedback LUT from a WheelCheck test so your wheel delivers force linearly in Assetto Corsa. Free.
Download LUT Generator for AC
More screenshots on OverTake.gg (formerly RaceDepartment) ↗
What this mod does
LUT Generator for AC is the most downloaded utility in the Assetto Corsa apps section on OverTake.gg, with over 400,000 downloads. It’s made by Akis and it corrects the non-linear behavior of many wheels’ motors: at low force you barely feel anything, and at high force they clip. The program generates a lookup table (LUT) that the game applies to the force feedback so the response is more even.
How it works
- First you run WheelCheck, a separate tool, with the «Step Log 2 (linear force test)» test and a «Max Count» of 50 or more.
- Then you open LUTGenerator.exe and load the CSV file WheelCheck created.
- The program smooths the data, filters out spikes and draws a graph before saving the table.
- The LUT is saved in the Assetto Corsa cfg folder inside Documents and enabled in ff_post_process.ini.
Who it’s for
It’s meant for gear- or belt-driven wheels, such as entry-level Logitech or Thrustmaster models, where the center of the force feedback feels empty. With the right table you feel small road details better without losing force in fast corners.
Tips
Set the game’s minimum force to 0 when you use the LUT. If you change the wheel gain in the manufacturer’s software, you’ll have to repeat the WheelCheck test and generate a new table.
User rating
Highlights and things to keep in mind
- The most downloaded Assetto Corsa app on OverTake
- Improves on-center feel on entry-level wheels
- Just 10 KB in size
- Needs WheelCheck, a separate program
- The whole process is manual, editing an .ini file
- No updates since 2016
- Some users warn in the reviews about antivirus alerts with the .exe: scan it before running it
Requirements
- Assetto Corsa for Windows PC
- WheelCheck (link on the resource page)
- A force feedback wheel
- Free OverTake.gg account to download
How to install it
- Download LUT Generator from its page on OverTake.gg (you need to log in) and WheelCheck from the link on the same page.
- Open WheelCheck, set Max Count to 50 or 100 and run the Step Log 2 (linear force test) until it finishes.
- Run LUTGenerator.exe and open the CSV file WheelCheck created.
- Save the .lut table in Documents/Assetto Corsa/cfg.
- Edit ff_post_process.ini in that folder: TYPE=LUT, ENABLED=1 and the .lut file name under CURVE.
- In the game's control settings, set the minimum force (min force) to 0.
Version history
-
0.1523 Apr 2016Current
Improved smoothing algorithms and added graph
-
Spike filter for the WheelCheck CSV and decimal separator fixed to a period
Common problems
Do I have to repeat the process if I change my wheel settings?
Yes. If you change the gain in the manufacturer's software, run WheelCheck again and generate a new LUT.
Does it work for direct drive wheels?
The mod page doesn't mention specific models; the idea is to correct motors with a non-linear response, which is more typical of gear- and belt-driven wheels.
WheelCheck won't start
Some users mention this on Windows 11 in the reviews. The mod page only links WheelCheck version 1.72.
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