Subject: Re: game framerates
From: Stanley Long (slong@customcpu.com)
Date: Tue Feb 26 2002 - 19:24:04 AKST
Justin Dieters wrote:
>
> > This is something I've been curious about -- does it really matter
> > if a game can produce 150 frames per second? Can your monitor even
> > display 150 fps? Certainly not if it has less than 150 Hz vertical
>
> 30 fps is generally considered good enough to be smooth. Certainly it
> doesn't make a difference if you are doing 60fps or 150fps.
>
> But, the main key is not how fast it can go, but what how low it drops
> when you have lots of stuff going on. If you run a game at 30 fps, but
> when you get a bunch of stuff going on it drops down to 15 fps, it makes
> the game just as unplayable as if it were going at 15 fps all the time.
> The key is to have it never drop below 30fps or thereabouts..
>
> > refresh rate. Can your eyes even *see* 150 fps? I very much doubt
> > it.
>
> I've heard somewhere that florescent lights typically flicker at 120
> times per second,
Coil-and-core magnetic only ballasts still zero out the lamp current 120
times per second. Different fluorescent powders may have slight effects
on how severe the dip shows.
> but those appear to be solidly lit, so no. But I have
> heard somewhere that like insects (flys) are able to see the flickering
> of florecent lights. (don't ask me how they know that one!) In any
> case, it depends on the person.
Be careful getting too close to a lathe if the overhead light is
magnetic-ballast fluorescent!
Newer electronic ballasts at 20kHz or 30kHz smooth things out rather
nicely.
They also tend not to interfere with monitors set to slow scanning
frequencies.
> I can detect flickering on a monitor at
> 60 fps, but many people cannot. I can't detect anything at 70fps or
> higher though.
>
> > 30 fps is the same framerate as American television. Is that not
> > enough for gaming?
>
> i believe tv is 24fps, iirc..
>
> Justin
Ever watch automobile wheels turn backwards (ie, TV adds ?)
Wave your hands (fingers spread) in front of your TV or computer monitor
...
How many fingers do you see?
This archive was generated by hypermail 2a23 : Tue Feb 26 2002 - 19:21:09 AKST