the human eye 60fps thing

[Leto]

How do I change my 640x480 frequency setting? I cant chose 640x480 in windows and change to 75 hz :/

I don't think theres an upper limit to perceivable fps. It's a question of bridging the gap between 2 different frames. Something videocameras do with a framerate of just 24, because the shutter time by nature creates a nice motion blur, connecting the frames. 60 fps is in most cases enough to prevent ghosting, but when theres alot of fast motion across the screen it will look unpleasent. If a car zooms by you and it takes 0.5 seconds to pass, it will be seperated into 30 frames with a distance of 40 pixels (1600x1200) between "each" car. It's hard to follow something with your eyes when it "teleports" like that.

 

[carpediem]

How do I change my 640x480 frequency setting? I cant chose 640x480 in windows and change to 75 hz :/

Try RefreshForce http://www.pagehosting.co.uk/rf

 

[eg1441]

I think there is some confusion here. There is a big difference between movies (recorded) and game-produced screens. Movement in games is time-aliased (there's probably a better term for this). That is, there is no motion blur (and if there is, it's not correct)

I'm sure you could notice the difference between 200fps and 300fps in this situation (maybe with some training), whereas I wouldn't be surprised if it was impossible to notice anything above 80fps for recorded film.

 

[Thowllly]

I think there is some confusion here. There is a big difference between movies (recorded) and game-produced screens. Movement in games is time-aliased (there's probably a better term for this). That is, there is no motion blur (and if there is, it's not correct)

I'm sure you could notice the difference between 200fps and 300fps in this situation (maybe with some training), whereas I wouldn't be surprised if it was impossible to notice anything above 80fps for recorded film.

The problem with motionblur is that if your actually following a moving object with your eyes, it shouldn't be blurred, but it will still be blurred.

 

[GameCat]

I think the idea that "the human eye can only see max X fps" (where X generally is pretty low) is calculated by taking the minimum response time of neurons, which is actually pretty high. Obviously, since the eye (and the brain for that matter) are parallel, this is bogus. Individual light sensitive cells and neurons in the eye and brain might be relatively slow to react, but they aren't all synced to some central clock, so it really doesn't matter.

 

[T2k]

Well, just FYI, the "church" (or great money-extorting scam, depending on how you look at it) of scientology teaches that the brain is capped at precisely 24fps. Of course, that number comes from the fact the "church"'s founder, L. Ron Hubbard, was a technological dunderhead and did not understand that movie cameras/projectors run at that speed for quite trivial reasons. He just thought that was the upper limit of the perception of the human mind and integrated that into his equally bogus teachings...

XENU!!!!!

Sorry, just gotta make sure.

Yeah.

OFF
That's a fuckin' dangerous maffia, I'm telling you. I consider myself liberal but these guys should have been investigated and locked down worldwide decades ago.
Frikkin' dangerous sect.
ON

 

[T2k]

How do I change my 640x480 frequency setting? I cant chose 640x480 in windows and change to 75 hz :/

Try RefreshForce http://www.pagehosting.co.uk/rf

With ATI you don't need anything like that since a year now - go to ATI CP/Displays, click on your monitor and there's a small menu called "refresh rate override"...

 

[Druga Runda]

]
It's kind like the Hz of the monitors. Some say that they get headache from 60Hz and others can look at it without any problems. I can't stand 60Hz (get headache very quickly) and need at least 80Hz+ in order to look at a plain white image on screen. A friend of mine can't even look at 85Hz without getting his eyes sore. His "minimum limit" is 100Hz. It is all very much up to the person.

Same here... I need at least 85hz to stop noticing a flicker. I don't notice any difference from 85 and up though.

I actually notice difference but I am OK as long as I don't use the monitor whole day...

To me 100 hz - OK very long - I don't know whether a higher hz rate would make a difference rather than the lighting in the room etc... at that point I think hz might not be main factor for getting eye strain etc...
85 hz - up to.8- 10hrs if I am not tired
75 hz - 1-2 hrs
60 hz - can't stand more than 5 -10 minutes....

 

[pcchen]

IMHO, using normal CRT monitors to test the "upper limit" of the human eye is not the correct way. CRT monitors still has an "optimal refresh rate," when the refresh rate is set lower, you can easily feel filcker, and when the refresh rate is set higher, fast moving objects left ghost trails. Furthermore, most "frame rate generators" does not perform temporal anti-aliasing at all, and that may create easy to identify aliasing effect even at high frame rate.

 

[Deepak]

]Actually my left eye was diagnosed as "super sight" since I could see things with that eye only a handful of people can see.

Interesting. Could you please elaborate more?

 

[T2k]

]Actually my left eye was diagnosed as "super sight" since I could see things with that eye only a handful of people can see.

Interesting. Could you please elaborate more?

Sure - he can see through female clothes if the person is between 16 and 40 ys old.