24 fps for maximum graphic details

Discussion in 'Technical & Support' started by Laborie, Nov 12, 2024.

  1. Laborie

    Laborie Registered

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    Hello,
    I am an electronic engineer graduated in 2010 and I don't understand the meaning of the fps race... I would like a regular frame rate of only 24 fps, a rate at which the movement is fluid for the human eye, and to be able to put the power calculation on image quality instead of number. I can't find anything on the subject in the forums. Has anyone ever tried to do this? Would you know why this would not be possible (or even desirable)?
    Thanks by advance for your reply because I feel a little alone in this race ! ;)
     
  2. 8Ball

    8Ball Registered

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  3. Emery

    Emery Registered

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    With 24 fps film, the frames were exposed at 1/24th of a second, so objects in motion are blurred. Computer frames, however, are not exposed in that way, there's no blurring and no tweening, so 24 fps looks jerky and not smooth.

    Even 60 fps in games will not be smooth when the camera panning motion is fast (going around a hairpin curve is when you'll most notice the lack of smoothness). Some games include motion blur, but it isn't applied evenly to all objects, generally being reserved for things like wheels turning and sometimes being misapplied "because it looks cool". Motion blur also uses up CPU time that could be better spent on car physics.

    So 60 fps minimum (partly because monitors are already refreshing at that rate). 90 fps will look smooth for most people, but, as usual with humans, there are some exceptional individuals who require more fps.

    Sometimes racing games have a link between the physics rate and fps. 24 fps (24 Hz) is much too slow to represent suspension motion! This is why most racing games now have a minimum of 300 Hz for the physics and often higher.
     
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  4. 8Ball

    8Ball Registered

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    Best example for mine is Grand Prix Legends 60fps / 144fps patches, difference is significant and very noticeable.
     
  5. davehenrie

    davehenrie Registered

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    and, there are plenty of people who can 'see' much more than just 24fps.
     
  6. Lazza

    Lazza Registered

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    Some people have accidentally done this and asked for help because the game runs like cr*p at 24fps (visually).

    All you need to do it properly is a screen that does 24fps. Set that as your video mode in rF2, and put vsync on.

    The backup option is to set Max Framerate to 24 in your player.json. (but - boy oh boy - you don't want tearing at 24fps...)

    As 8ball and Emery explained, this isn't desirable, and the "24fps thing" is misunderstood.
     
  7. Laborie

    Laborie Registered

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    Yes guys :)
    I think the image the GPU computes shall be in phase with the fps of the screen. My game runs now much better as I unlocked the NVIDIA maximum frame rate. I have set on the other hand in the game the fps at 50Hz and I can get better image quality ... ;)
     
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  8. PlanRZ

    PlanRZ Guest

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    I think there is a misunderstanding.
    24 fps is where, in average, eyes start to see motion. Below that it stutters and don't feel like moving.
    It's just a threshold.
    It's quite easy to see that 60 fps is better than 30 even on any poor televison/screen.
    And i think there is no limit.
    If latency between images gets lower, motion is more fluid and feels more real. No doubt on that.
    It's probably some genetics reasons that some people don't feel nothing above 60.
    Like sounds and frequencies there is a lot of biological things going on.
     
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  9. Laborie

    Laborie Registered

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    I think the stability of the images periodicity (or frequency) is more important for fluidity...
     
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