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Dissident: That's your monitors hsync, that is, how many times per second the electron beam that draws the picture on the monitor goes from one end of the monitor to the other horizontally.
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This is Shireroth, and Giant Squid will brutally murder me if I ever remove this link from my signature | In the end it won't be love that saves us, it will be mathematics | So many people have this concept of God the Avenger. I see God as the ultimate sense of humor -- SlowwHand -
--"is this psychological or is there a real reason for it?"
A large number of people have that complaint, so there's probably a real reason for it
It does vary by person and by conditions; flourescent lighting will make it worse. Personally, I never run below 75.
--"what to laptops typically run at?"
LCD monitors do not use a refresh rate per-se. Instead they have a delay time, the time it takes a pixel to light up or darken. However, this won't cause the same sort of problems the low refresh rate does, it'll just cause streaking in fast-moving graphics.
--"For comparison purposes, a movie runs at 48 frames per second"
48? I thought movies were 24.
--"Yeah, but isn't FPS a whole other thing than refresh rate?"
You're getting two different things mixed up. Refresh rate is how often the screen is redrawn. FPS as you are using it is how many full screens the video card can draw. FPS as it is being used above is basically equivalent to the refresh rate, namely how many times the image on the screen is redrawn.
Wraith
First snow, then silence
This thousand dollar screen
Dies so beautifullyComment
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"48? I thought movies were 24."
No. 24 unique pictures. But 48 actual frames on all modern projectors, including IMAX. The film contains two identical frames adjacent.
"I thought the movies go at 25 fps?"
OK, ignore the 24 v. 48 question for a moment. Even film shipped to PAL-land will contain 24 unique pictures. But the DVD pressing is adifferent matter. When a PAL DVD is pressed, it is first interleaved (making 48 fields), then pre-filtered so that you won't have wavy lines on interlaced TVs when displayed, then 2:2 pulldown is added which just repeats one frame/two fields per second to bringing it from 48 to 50 Hz.
For NTSC DVD, after interleaving and pre-filtering, when a DVD is played, the player adds 3:2 pulldown, meaning that one out of every five frames/two fields is just a repeat bringing it from 48 to 60 Hz.Last edited by DanS; January 2, 2003, 14:03.I came upon a barroom full of bad Salon pictures in which men with hats on the backs of their heads were wolfing food from a counter. It was the institution of the "free lunch" I had struck. You paid for a drink and got as much as you wanted to eat. For something less than a rupee a day a man can feed himself sumptuously in San Francisco, even though he be a bankrupt. Remember this if ever you are stranded in these parts. ~ Rudyard Kipling, 1891Comment
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Most people somehow can see it. I, personally, can't tell the difference between 85 and 60 - I just don't see it.Solver, WePlayCiv Co-Administrator
Contact: solver-at-weplayciv-dot-com
I can kill you whenever I please... but not today. - The Cigarette Smoking ManComment
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My laptop (LCD) runs at 60 Hz, though I don't seem to notice it as badly as 60 Hz on a monitor. I run my home monitor at 85 Hz, and when it occasionally drops down to 60 (Civ3 does this for a moment when it starts up, don't know why), it does hurt my eyes.
I think I heard a techincal explanation for why this is, but I don't remember all the details any more. Something to do with your brain beginning to perceive the individual images as opposed to "melding" them into one "continuous" image, or something like that..."If you doubt that an infinite number of monkeys at an infinite number of typewriters would eventually produce the combined works of Shakespeare, consider: it only took 30 billion monkeys and no typewriters." - UnknownComment
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