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30 hz eyes
- Thread starter alexoprice
- Start date
Yeah... ok...
I wouldn't take a whole lot of what people are saying about how the human eye works too seriously in this thread
.
Anyways:
Turn your monitor to 60hz, load up a big white picture (like an internet explorer error page).
Do you NOT see that flicker? I do. Still don't see it? OK, leave the page open, look upwards. You should definitely see it in your peripheral vision, but most people can see it when they look directly at the monitor, too.
So obviously your eye can still tell there are individual frames at 60fps.
Who knows exactly where the eye doesn't notice the frames anymore. I don't see a flicker around 80hz, so I would say 80fps is enough that things look like smooth motion to me.
However, does that mean when I benchmark a game I should set the detail as high as I can so that I can just hit 80fps, on the premise that I will then see smooth motion the entire time I play the game?
Heck no, because we all know (or should know) that game FPS is gonna drop in heavy action. Benchmarks are an average. If I bench 80fps in Quake 3 (...haha), it would mean that I'd be hitting highs well over 80fps, but also hitting lows probably down as far as 20fps, something I wouldn't want.
THAT's why FPS in video games is still important: the higher your average FPS, the higher your 'worst case scenario' FPS is as well, and we all know that when things bog down is usually when everything is blowing up around us, and when everything is blowing up around us is exactly when we WANT high framerates.
Erik
I wouldn't take a whole lot of what people are saying about how the human eye works too seriously in this thread
.Anyways:
Turn your monitor to 60hz, load up a big white picture (like an internet explorer error page).
Do you NOT see that flicker? I do. Still don't see it? OK, leave the page open, look upwards. You should definitely see it in your peripheral vision, but most people can see it when they look directly at the monitor, too.
So obviously your eye can still tell there are individual frames at 60fps.
Who knows exactly where the eye doesn't notice the frames anymore. I don't see a flicker around 80hz, so I would say 80fps is enough that things look like smooth motion to me.
However, does that mean when I benchmark a game I should set the detail as high as I can so that I can just hit 80fps, on the premise that I will then see smooth motion the entire time I play the game?
Heck no, because we all know (or should know) that game FPS is gonna drop in heavy action. Benchmarks are an average. If I bench 80fps in Quake 3 (...haha), it would mean that I'd be hitting highs well over 80fps, but also hitting lows probably down as far as 20fps, something I wouldn't want.
THAT's why FPS in video games is still important: the higher your average FPS, the higher your 'worst case scenario' FPS is as well, and we all know that when things bog down is usually when everything is blowing up around us, and when everything is blowing up around us is exactly when we WANT high framerates.
Erik
Some people see things differently. Vision changes as people get older. Thus, some people notice it, others don't.
All i can say is get your computer running as fast as it can, so that you don't notice slowdown (as i think i may have said before).
In the words of Dem: "THAT's why FPS in video games is still important: the higher your average FPS, the higher your 'worst case scenario' FPS is as well, and we all know that when things bog down is usually when everything is blowing up around us, and when everything is blowing up around us is exactly when we WANT high framerates."
Well said
All i can say is get your computer running as fast as it can, so that you don't notice slowdown (as i think i may have said before).
In the words of Dem: "THAT's why FPS in video games is still important: the higher your average FPS, the higher your 'worst case scenario' FPS is as well, and we all know that when things bog down is usually when everything is blowing up around us, and when everything is blowing up around us is exactly when we WANT high framerates."
Well said
alexoprice
n00b
- Joined
- Oct 3, 2003
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- 27
Everyone knows eyes dont see in fps so quit saying that we are not saying that. If you do some research you will see that visual signals are sent to the brain at 30hz. Just becuase you can see something that was flashed for 1/200 of a second does not mean that our eyes work at 200hz. Theres a lot of people repeating obvious stuff in this thread, I know that i can see a difference above 30fps, I was just curious if anyone knew much about how the eyes worked and why even though we proccess at 30hz, we can see things as that happen much faster.
Vision is different for everyone. I see those damned dots in movies, my wife doesn't see as many, her mother doesn't see them at all.
The main reason people have this argument so screwed up is the fps of TV. It's 30 and people don't see a slide show, so that must be the limit right? No, people are not accounting for motion blur as others mentioned. At any rate, that's where the fabled 'human eye can only see 30 fps'...
The main reason people have this argument so screwed up is the fps of TV. It's 30 and people don't see a slide show, so that must be the limit right? No, people are not accounting for motion blur as others mentioned. At any rate, that's where the fabled 'human eye can only see 30 fps'...
Ocean
Supreme [H]ardness
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did you know that astronauts wake up in the middle of the night to bright flashes inside of their eyelids?
cosmic radiation not blocked by the earth's ionosphere and electromagnetic field passes right through their eyelids, and triggers a rod firing on their retina.
cosmic radiation not blocked by the earth's ionosphere and electromagnetic field passes right through their eyelids, and triggers a rod firing on their retina.
Most of the radiation is sheilded by the coating on the space craft. Its the small amount of cosmic radiation, thats practically harmless, that passes through the coating and into the astronauts. That sounds bad and dangerous, but really it isn't.
If this turns into a debate about radiation in space and astronauts, im not going to be happy...
Come tomorrow, I'll dig up a nice, heavy book on perception psychology and beat you over your head with it for a while. All in the quest for furthering of knowledge, and in a caring, gentle way, of course.
(Waking up the rest of the house at 0020 to fetch it, however, is going too far.)
The essence, though, is that you do not get discrete updates, at all, in any way. Reaction times, thresholds for flicker et boring cetera might hover around 30Hz, but that is not even remotely the same. Trust me, until I get around to backing it up.
Whatsisname
[H]F Junkie
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You just said everyone knows eyes dont have fps yet then you say they do Your eyes constantly stream data much faster than 30hz.
Your eyes constantly stream data much faster than 30hz.Whatsisname
[H]F Junkie
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holy christ you need to read an anatomy book. Our eyes stay on. Always. However, they dont have a fixed framerate. If you are out in the middle of the night and cant see shit not as much processing will be dedicated to them. If you are driving a car at 200mph your brain will devote a huge amount of processing to them. The reason the strobe effect work is because there is only light present at a certian state in a scene. Thats the only thing your eyes see, and your brain peices it together. Thats why if you flash a strobe in sync with a high speed rotating part, the part will seem to not be moving. On the other hand, if its at a dance club and a slow speed it will confuse your brain because you'll be seeing erratic motion.
Ocean
Supreme [H]ardness
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some links to the astronaut cosmic ray eye flash thing.
http://www.space.com/scienceastronomy/mir_lights_030416.html
http://lsda.jsc.nasa.gov/books/apollo/S4CH2.htm
http://helios.gsfc.nasa.gov/qa_cr.html
http://www.space.com/scienceastronomy/mir_lights_030416.html
http://lsda.jsc.nasa.gov/books/apollo/S4CH2.htm
http://helios.gsfc.nasa.gov/qa_cr.html