FOV Question - 57” g9

Discussion in 'Automobilista 2 - General Discussion' started by Lexelot, Nov 26, 2024 at 2:19 AM.

  1. Lexelot

    Lexelot New Member

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    Hi there,

    I’ve taken a look at the FOV calculators online and input my data:
    • 57” diagonal (32:9)
    • 55cm from eyes
    • 1000R curve

    They’re telling me ~127 degrees but in game there is a fisheye view and even the center of the screen looks warped.

    Is this due to the lack of projection correction in the game, or am I interpreting the FOV calculators incorrectly?

    I’ve noticed each calculator recommended: a Google Sheets spreadsheet, dinex86 and andystoica’s all have slightly varied results as well which has me questioning their validity. Is there a recommended calculator for 32:9 curved screens?

    Thanks!
     
  2. Marius H

    Marius H Internal Beta Tester Staff Member AMS2 Club Member

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    Dinex is recommended, yes. 127 is correct. 57 is an enormous single screen monitor. Then you will experience some sort of fish eye in some of the corners, yes.

    Alternavively you can sell the monitor and go triple screen. Then use the ingame triple screen-menu.

    Some users like you, and me, have reported this issue on large single screen, 34, 49 and 57, so hopefully Reiza tackles it someday. Fingers crossed!
     
    Last edited: Nov 26, 2024 at 4:01 AM
  3. Lexelot

    Lexelot New Member

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    Thank you, much appreciated!

    It’d be awesome if there was a way to enable triple screen even with the one monitor. I noticed I could do that in some other titles and was able to get a really decent FOV using angle adjustments.
     
  4. Marius H

    Marius H Internal Beta Tester Staff Member AMS2 Club Member

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    Agreed. Lets hope! 49 and 57 inch single monitors are awesome. I've two cats.. Never unaligned monitors anymore.
     
  5. VFX Pro

    VFX Pro Well-Known Member AMS2 Club Member

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    It would be fantastic to get projection correctly so people with ultrawide don't get significant distortion the close you get to the edge... like iRacing. It makes the experience a lot more realistic and also great for people that cannot have triple mounted on motion rigs.
     
  6. Bull Shark

    Bull Shark "Later has already begun." AMS2 Club Member

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    Such a large screen is awesome but still not as immersive as a triple screen setup. I went back to triple screens just of that. And because my eyes can’t handle very long sessions in VR anymore due to a condition. But after VR, comes a triple setup for me, and after the triple setup the ultra wide screens. That is personal preference of course. :D
     
  7. Lexelot

    Lexelot New Member

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    Interestingly, I wear glasses with a negative diopter (-4.50), so things appear a bit minified. I took this into account and found a formula for minification:

    m = (Lens Power)*(Distance of Lens from Eye in cm)
    m = (-4.50 )*1.5 = -6.75%

    z = 55 * (1.0675) = 58.7cm

    I changed FOV to 121 and even though it's a small adjustment it looks much more accurate to me now. No idea on the scientific validity of this, but it passed the sniff test and visual scrutiny.

    *I did see a different minification formula on some optics forums that produced a 6.32% number, but close enough to the original
     
    Last edited: Nov 26, 2024 at 7:33 PM
  8. Xzanman

    Xzanman Active Member

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    Projection correction would solve the problem.

    When FOV calculators take the curve into consideration of course you get a much wider fov, however the closer to the center you get then the more off the fov becomes, when not taking the curve into consideration the fov becomes more wrong from the center out.

    In your case the difference is huge 103 without the curve and 127 with the curve. Perhaps a compromise between the two would be a better solution? Maybe 115.

    Without the projection correction it is impossible to get a mathematically correct fov.
     

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