the 24 fps thing is one hella myth. our cones and rods send a continuous stream of information, which is blended with past-received information in our perception to remove stuff like the movement from darting your eyes around.
TachyonTele@lemm.ee 2 months ago
Basically, yes. Our eyes capture the light that goes into them at 24 frames per second (please correct me if I goofed on that) and the image is upside down.
Our brains turn those images upright, and it also fills in the blanks. The brain basically guesses what’s going on between the frames. It’s highly adapt at pattern recognition and estimation.
My favorite example of this is our nose. Look at you nose. You can look down and see it a little, and you can close one eye and see more of it. It’s right there in the bottom center of our view, but you don’t see it at all everyday.
That’s because it’s always there, and your brain filters it out. The pattern of our nose being there doesn’t change, so your brain just ignores it unless you want to intentionally see it. You can extrapolate that to everything else. Most things the brain expects to see, and does see through our eyes, is kind of ignored. It’s there, but it’s not as important as say, anything that’s moving.
Also, and this is fun to think about, we don’t even see everything. The color spectrum is far wider than what our eyes can recognize. There are animals, sea life and insects that can see much much more than we can.
But to answer more directly, you are right, the brain does creazy heavy like lifting for all of our senses, not just sight. Our reality is confined to what our bodies can decifer from the world through our five senses.
HatchetHaro@lemmy.blahaj.zone 2 months ago
PrimeErective@startrek.website 2 months ago
24fps vision is a lie told by Hollywood so they can save on film
someguy3@lemmy.world 2 months ago
It’s the lowest fps they can go without it being horrid, really.
TonyTonyChopper@mander.xyz 2 months ago
It is horrid. I get nauseous whenever a low framerate video has any significant motion
robdor@lemmynsfw.com 2 months ago
Cloverfield needs a 420 fps remaster.
leds@feddit.dk 2 months ago
Also, your eyes dart around and you only see a little patch. You blink. Your brain makes up a nice stable image of the world, mostly consisting of things that your brain think should be there.
Reyali@lemm.ee 2 months ago
If you want a fun experiment of all the things we see but don’t actually process, I recommend the game series I’m On Observation Duty. You flip through a series of security cameras and identify when something changed. It’s incredible when you realize the entire floor of a room changed or a giant thing went missing, and you just tuned it out because your brain never felt a need to take in that detail.
It’s sorta horror genre and I hate pretty much every other horror thing, but I love those games because they make me think about how I think.
DarkDarkHouse@lemmy.sdf.org 2 months ago
Reyali@lemm.ee 2 months ago
Ha, I’ve heard of that one so I caught it. I missed 3 of the passes, though!
TachyonTele@lemm.ee 2 months ago
That sounds pretty interesting. Thanks
FeelzGoodMan420@eviltoast.org 2 months ago
The 24fps thing aounds wrong. That’s not even a cinematic 30.
calabast@lemm.ee 2 months ago
We definitely are seeing things faster than 24 Hz, or we wouldn’t be able to tell a difference in refresh rates above that.
TachyonTele@lemm.ee 2 months ago
Yeah it’s not like frames from a projector. It’s a stream. But the brain skips parts that haven’t changed.
Steve@communick.news 2 months ago
People looking at a strobing light, start to see it as just “on” (not blinking anymore) at almost exactly 60Hz.
In double blind tests, pro gamers can’t reliably tell 90fps from 120.
There is however, an unconscious improvement to game reaction time, all the way up to 240fps. Maybe faster.
RecluseRamble@lemmy.dbzer0.com 2 months ago
It seems to be more complicated than that
seaQueue@lemmy.world 2 months ago
The real benefit of super high refresh rates is the decrease in latency for input. At lower rates the lag between input and the next frame is extremely apparent, above about ~144hz it’s much less noticable.
The other side effect of running at high fps is that when heavy processing occurs and there are frame time lags they’re much less noticable because the minimum fps is still very high. I usually tell people not to pay attention to the maximum fps rather look at the average and min.
Contramuffin@lemmy.world 2 months ago
I think having higher frame rates isn’t necessarily about whether our eyes can perceive the frame or not. As another commenter pointed out there’s latency benefits, but also, the frame rate affects how things smear and ghost as you move them around quickly. I don’t just mean in gaming. Actually, it’s more obvious when you’re just reading an article or writing something in Word. If you scroll quickly, the words blur and jitter more at low frame rates, and this is absolutely something you can notice
ekky@sopuli.xyz 2 months ago
I think i read that fighter pilots need to be able to identify a plane in one frame at 300 fps, and that the theoretical limit of the eye is 1000+ fps.
Though, whether the brain can manage to process the data at 1000+ fps is questionable.
Fester@lemm.ee 2 months ago
I’m using part of this comment to inform my monitor purchases for the rest of my life.
ivanafterall@lemmy.world 2 months ago
New 1,200 Hz displays? Well, it did say 1,000-plus…
nimpnin@sopuli.xyz 2 months ago
Both of these claims are kinda misguided. The brain is able to detect very short flashes of light (say, 1 thousandth of a second), and other major changes in light perception. Especially an increase in light will be registered near instantly. However, since it doesn’t have a set frame rate, more minor changes in the light perception (say, 100 fps) are not going to be registered. And the brain does try to actively correct discontinuities, that’s why even 12 fps animation feels like movement, although a bit choppy.
olafurp@lemmy.world 2 months ago
I would believe it if someone told me that an individual rod or cone in the eye was 24fps but they’re most likely not synched up
SpaceNoodle@lemmy.world 2 months ago
Generally humans don’t perceive a difference above 60 Hz.
yoevli@lemmy.world 2 months ago
Completely untrue and not even up for debate. You’d know this if you had ever used a high-refresh rate display.
SpaceNoodle@lemmy.world 2 months ago
Let me guess, you’ve also bought a Gamer Chair to go with your overpriced 144 Hz display.
SoleInvictus@lemmy.blahaj.zone 2 months ago
It’s noticeable, it’s just not massive. My phone screen runs at 120hz but I don’t notice a difference unless I’m scrolling rapidly. Gaming culture (driven by corporations) really overemphasizes its importance.
Also keep in mind there likely isn’t a lot of selective pressure on biological vision refresh rate, so I wouldn’t be surprised if there’s a fair amount of variability in the ability to discern a difference amongst individuals.
SpaceNoodle@lemmy.world 2 months ago
Finally, a reasonable reply to my comment.
Venator@lemmy.nz 2 months ago
You’re right that is a continuous process, so there’s no frame rate as such. 24 fps is just the lowest framerate that doesn’t look “framey” in videos, but can go as low as 12 and still reliably perceive it as movement, which is why most stop motion films are done at 12fps.
The amount of motion blur we see on fast moving objects is similar to a 24fps camera with a normal shutter angle setting, but we don’t perceive any blur when we turn our heads or move our eyes like a camera at that fps does.
There’s also our reaction time, which can vary a lot depending on a plethora of factors, but averages around 250ms, which is similar to 4fps 😅