1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory.
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  3. If your game executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, then run a Steam integrity check or reinstall the game altogether.

Display comparison and FoV tool

Discussion in 'ACC Tools' started by jcarruthers, May 27, 2020.

  1. jcarruthers

    jcarruthers Rookie

    Hi all,

    I made this to calculate FOV and compare different combinations of display sizes; hope it helps some people.


    Note that ACC uses VFoV.

    Screenshot 2020-05-27 at 10.40.44.png
    Last edited: May 27, 2020
    sps_for_race likes this.

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  3. vlado Cro

    vlado Cro Simracer

    Its missing 29" size in 21:9.
  4. grandepunto

    grandepunto Simracer

    ACC uses vertical fov.
  5. jcarruthers

    jcarruthers Rookie

    Oops - yeah - brain fail - corrected it.
  6. André Silva

    André Silva Rookie

    Hi , great tool .

    Can you explain a bit some of your settings, like distance from baseline an baseline offset ?
  7. jcarruthers

    jcarruthers Rookie

    Hi André — thank you!

    Baseline is essentially "zero", which is where the monitor is. Distance from baseline is how far your eyes are away from the baseline.

    You can offset each monitor to simulate moving them forwards or backwards.
  8. jcarruthers

    jcarruthers Rookie

    Someone asked to add curved monitor option - so that’s included now.

    Also fixed some bugs with the screens sometimes rendering in an odd order. So now the red screen is always on top of the black - no matter where it’s positioned. Makes sense to me that the red is the comparison.
  9. magictap

    magictap Rookie

    Hi all, don't hate...but.....i use HFOV in ACC as it works better than VFOV for me, much more consistent. My eyes are 94 cm away from 42 inch 1080 TV. just couldn't keep it on the track using vfov of 31, but with hfov or 53 it feels more intuitive and much easier to keep on the black stuff. Don't be afraid to give it an hour dedication if you feel ACC is to twitchy for you and see if it helps you also.
  10. sps_for_race

    sps_for_race Alien

    You don't use hFov, you just use a random number in this case.
    Gevatter, ohjeah and LATE4APEX like this.
  11. magictap

    magictap Rookie

  12. sps_for_race

    sps_for_race Alien

    That's not the point.
    Some are faster with gamepads than others with wheel and pedals...

    You can do whatever you want, but don't call it hFov.
  13. magictap

    magictap Rookie

    not sure what else to call it tbh as using a fov calc and inputting a hfov resulting number! I get your point though.

    LATE4APEX Alien

    "Coincidence", maybe ?
    Last edited: Dec 14, 2020
    AndyK70 and sps_for_race like this.
  15. ohjeah

    ohjeah Simracer

    Yea, doesnt make any sense to use a fov calculator unless using the vfov value that it gives in the game. Otherwise it's literally just a random number.
    Pekka and sps_for_race like this.
  16. Dave_B005

    Dave_B005 Rookie

    Hi, can you explain why ACC cannot use hFOV as my setup is weird if using vFOV of 22.5 (48 inch TV @ 150cm). I also have plugged in a hFOV of 42 from an FOV calculator and it looks and feels ok. Only new to ACC coming from console GT Sport so have lots to learn.
  17. ohjeah

    ohjeah Simracer

    Well if you want to use the mathematically correct fov you should use the vfov value that the calculator gives you. That is the one and only correct value, everything else is just wrong.

    I'd suggest getting closer to the tv if possible and just getting used to it. Takes some time but usually there are benefits from using the correct fov.
    LATE4APEX likes this.
  18. magictap

    magictap Rookie

    bit harsh to say everything else is just wrong, the calcs are mathematical but not the absolute only number as personal preference, situation etc have influence also. If the hfov works over the vfov or vise versa, thats right for you. So long as you have tried (in my case persisted) the 'correct' fov until it wont work for you. As a side note on this, I move to VR HP G2, and have no fov issues any longer, I can categorically say that the wrong fov is was running looks way closer to the VR view than correct fov, in my personal case.

    LATE4APEX Alien


    Using the WRONG input in a calculation, is like calculating the area of a rectangle by inputting a metric dimension for length, and an Imperial/US dimension for the width.

    12" x 10 cm = ???

    You will get a result, but it will be MEANINGLESS, and of no value.
    Last edited: Jan 14, 2021 at 6:06 PM
    ohjeah and sps_for_race like this.
  20. magictap

    magictap Rookie

    agree entirely that is how mathematics works bud, but open your mind a little more and understand this goes a little further. If a game becomes more playable and controllable therefore more fun and less likely to take others out in the process, can't be all meaningless and deliver no value surely.

    Yes, use the calculators and the correct fov settings first, but if it doesn't work for someone fair enough right.
  21. sps_for_race

    sps_for_race Alien

    Nobody ever said here, do not use a random number fov.
    But you don't need a correct vfov calculator to find, what makes you feel comfortable and call it then, i use hfov, this is plain wrong.
    ohjeah, LATE4APEX and AndyK70 like this.

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