On Thu, 5 Aug 1999 00:20:55 +0200, "Ross MacGregor"
>Actually, video and cinema frame rate is precisely 24 frames a sec, not
>"around 30"
Nobody said cinema.
Cinema = 24 fps
Video NTSC = 29.97 fps (~30)
Video PAL = 25 fps
Where video does things in fields to complicate things. Thus Video
frame rates are actually doubled, but flicker a bit depending on the
phosphor used in the monitor.
Cinema is great, but is sure is jerky when you see some panning!
Ah well, we've seen these discussions before.
Around 120Hz the discussion ends for all people I guess. Although
probably many will still prefer 130Hz over 120Hz ;-)
But he's very right about the jerkyness coming into play when the
frequency is *not stable*. It's more irritating to see a 30Hz picture
move every now & then to 25Hz than to look at a stable 15Hz picture.
Just watch cartoons...
Ruud
>Ross
>Wolfgang Preiss a crit dans le message
>>>: 3/ Screen update rate: Even a steady 36 Hz frame rate is noticeably
>>>: worse than real life. There is a reason real flight simulators
>>>: use 60 Hz or more. With a less than a 1GHz pc, you probably
>>>: have variations in frame rate also which doesn't make it easier.
>>> This I don't believe - TV is around about 30Hz and nobody complains
>>>that their TV looks jerky. When a framerate of 30 fps looks jerky it's
>>>inevitably because that 30 fps was an average and at some point it
>>>dropped way below that.
>>DON'T DO IT! Richard, for your own good, do not - I repeat DO NOT -
>>start the "30 fps is all the eye can distinguish" discussion again. I
>>know you're not saying this, but it's dangerously close. :)
>>Really, this is a topic that leads to regular RAS flamefests every six
>>months or so. And the side that claims that framerates above 30 fps
>>are overkill always loses.
>><Obi Wan> "This is not a discussion you want to have." </Obi Wan>
>>--
>>Wolfgang Preiss \ E-mail copies of replies to this posting are welcome.
>cancellation
>warned.
Ruud van Gaal
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