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My friend just told me the eye can only see 30FPS

elohel

Member
so this thread is about an argument and asking us to do research for him in the name of "GAF" I dunno that doesn't sound very nice why not just do the research yourself
 
I'm tempted to show him this thread, but at the same time as he does drive me crazy at times, he is still a great friend who has been there for me, who has taught me a lot, who has made me a much better person.

Hmmmm...

Thank him for that and repay him by saying he is full of shit this time.

He will thank you later.

Best friends forever.
 
I remember reading that most people can't tell the difference above 72 frames a second.
Am I pulling this out my arse or is there any truth to that?
 
I just feel really sorry for people doing things in Windows without a 120Hz+ screen in low persistence mode. You people have no idea how good that shit feels. No idea.

As others have said, eyes don't see in separate frames, and the upper limit of motion clarity is definitely way above 60, not to mention 30. The quicker something moves across the screen the higher refresh rate (and lower pixel response time) you'll need to be able to maintain details while tracking the moving object with your eyes.

Here's a simple test anyone can do: try reading text on a website while scrolling somewhat quickly. I bet you can't, it looks like a blurry mess. Guess what? I can with the type of monitor I'm using, and I'm willing to bet it can get even better.
 
A customer once told me he didn't believe in surround sound because we only have two ears.

Your customer is not too far off though, is he?
Ever tried a good virtual surround headset run through proper software? It's all just a question of manipulating the right frequencies and loudness for the right sounds in a 3D environment.
 

Falk

that puzzling face
I read it around the time Dead or Alive 4 was releasing because Tecmo claimed they could get it running at 120 on 360 but there was no point because the eye couldn't tell.

Aside from "because the eye couldn't tell" that actually makes sense as the average consumer market doesn't all have 120Hz TVs.
 

nkarafo

Member
The human eye can perceive more than 60fps.

I can only play Quake 3 competitively at 85fps+ on a CRT. 60fps is slow for this game.
 

Macka

Member
I've been shown 30fps and 60fps and honestly couldn't tell the difference. I didn't play the game though, so I didn't get a chance to compare the response time and whatnot.

Kinda annoys me when people act as if it's such an obvious visual difference when I've met several people who can't tell either.
 

Javaman

Member
Do his ears also not hear surround sound?

Can the ears really hear 3d sound? I always figured minor head movement were necessary to complete the aural picture since sound waves get channeled through tunnels before getting to the eardrum.

I don't mean left or right I mean front to back.
 

Shpeshal Nick

aka Collingwood
I've been shown 30fps and 60fps and honestly couldn't tell the difference. I didn't play the game though, so I didn't get a chance to compare the response time and whatnot.

Kinda annoys me when people act as if it's such an obvious visual difference when I've met several people who can't tell either.

Between 60 and 30? Yeah there's a pretty decent difference.

I'm yet to lay eyes on anything higher than 60 so I'm interested to see if I can tell there.
 

nkarafo

Member
I've been shown 30fps and 60fps and honestly couldn't tell the difference. I didn't play the game though, so I didn't get a chance to compare the response time and whatnot.

Kinda annoys me when people act as if it's such an obvious visual difference when I've met several people who can't tell either.
Dude. Either the footage they shown you was messed up, or there's something wrong with your vision. I'm not trying to be a jerk or anything, but if you honestly can't tell the difference, then something must be wrong and you should check it. Just to be safe, you know.
 

Arun1910

Member
If you can't see the difference between 30fps and 60fps you have eye issues.

That said, I can't notice anything over 60fps.
 

SgtCobra

Member
Technically speaking he's right, an eye can only see 30fps. It can't taste it, it can't smell it, it can only see it.

You don't really need me to tell you he's talking bs, but let him show this thread to prove that you're right.
 
Can a Human See a Single Photon?

In their experiment they allowed human subjects to have 30 minutes to get used to the dark. They positioned a controlled light source 20 degrees to the left of the point on which the subject's eyes were fixed, so that the light would fall on the region of the retina with the highest concentration of rods. The light source was a disk that subtended an angle of 10 minutes of arc and emitted a faint flash of 1 millisecond to avoid too much spatial or temporal spreading of the light. The wavelength used was about 510 nm (green light). The subjects were asked to respond "yes" or "no" to say whether or not they thought they had seen a flash. The light was gradually reduced in intensity until the subjects could only guess the answer.

They found that about 90 photons had to enter the eye for a 60% success rate in responding. Since only about 10% of photons arriving at the eye actually reach the retina, this means that about 9 photons were actually required at the receptors. Since the photons would have been spread over about 350 rods, the experimenters were able to conclude statistically that the rods must be responding to single photons, even if the subjects were not able to see such photons when they arrived too infrequently.

If we can percieve faint flashes at 1/1000th second, I really don't think we can say that our eyes have "30 hz" (which is just a stupid way to describe how it works nonetheless).
Go ahead and be all crazy and mock your friend too, have a good laugh about his sillyness.
 

Oppo

Member
An easy way to demonstrate this, if you have an iPhone 5s handy:

Show them the viewfinder on the camera app in a Video mode (30FPS)
Then show them the same things slo- mo mode (120FPS)

It's pretty apparent
 

Relativ9

Member
A car traveling at just 100km/h covers 27,7 meters in one second, which equals 0.93 meters in one frame if the eye were too see in 30 frames per second. Given this, if you were to obstruct your vision so thst only 0.92 meters of the road was visible to you; the car would be invisible to you as it traveled past. Hopefully you know from experience that this wouldnt be the case.
 

nkarafo

Member
Here's a test i use to do, in order to see how fast the frame rate should be in order to stop seeing any difference.

First of all, i use a CRT at 100hz, with v-sync off. Then, in Quake 3 Arena, i bind different max_fps values at different buttons. Button 1 makes the game run at 10fps, 2 at 20, 3 at 30, etc all the way to 100. Then i use the strafe button to make the screen scroll horizontally and start testing all the different values.

Even at 80 fps i can see a noticeable difference in smoothness compared to 60. The difference from 80 to 100 is very small but even that is noticeable if the speed of the camera is fast enough. Unfortunately, i couldn't test beyond 100fps since the monitor couldn't handle it. But i can confirm that your eyes can tell the difference between 60 and 100 fps.
 

Ranger X

Member
The human eye doesn't see in "frames". The human eye perceive light intensity changes. And the brain processes eye signals wayyyyyyy faster than our little 30hz/60hz machines.

Its also about contrast, the more there will be contrast, the more you will notice. A good human eye can see a black screen that appears for 1 frame in a completely white movie running at 1000 fps. Because the black is such a change in luminosity compared to white, its so contrasting with the rest that the eye will notice.

Now, your body notices the difference between 30fps and 60fps but at the end of the day its all about caring. Everybody notices but it doesn't mean it matters for everybody. You brain is dumping information you deem unimportant all the time, everyday.
 
I have horrible eyesight and I can see a clear difference.

That said, I'm not on team "30 is garbage." If a frame rate is smooth, I can deal with it.. I would prefer 60, but I'm not going to say no to a game because it runs at 30 fps.
 

gogosox82

Member
Your friend is full of shit and probably doesn't want to admit to you that your right and he's wrong. I can't imagine how anyone couldn't tell a difference.
 

Tesseract

Banned
time is so strange, i wish snoop dogma was here to skibby da hibby dibby on da frames of life per units

laiiiiiiid back
 

nkarafo

Member
I've watched videos on YT of those 60fps games and they look just like the 30fps games. That's evidence, right?
image.php
 
TLoU's ability to switch between FPS makes it so incredibly noticeable. Just change the setting and spin the camera and the difference is instantly recognizable. Anybody on the fence should try it and I'm pretty sure it's impossible to miss.
 

Dash Kappei

Not actually that important
"My uncle is a jet pilot, he has a F14 down in the garage".... "It's right here in front of us. You can't see it right now because the stealth shields are up".

Note: actual shameless bullshit a neighbor used to tell us when I was a kid.

Aren't you a fellow italian? If so then a Tornado would have probably been more fitting

:p
 

TSM

Member
What's funny is that the largest difference to me between 60hz and 120hz is just basic windows interaction. 120hz is just so much smoother to use on a daily basis. If people had to interact with windows at 30hz, they would probably want to throw their computer out the window.
 
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