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GPL - Frame Rate Limits ?

13 posts by 8 people · 18 Mar 2001 18:43 UTC - 20 Mar 2001 17:09 UTC

Larry 18 Mar 2001 18:43 UTC#195227
Is it just me, or is GPL limited to around 36fps no matter what hardware you throw at it ? Now, I get 36fps pretty much all the time, everywhere, but it never exceeds 36fps. Is this normal ? -Larry
yep there's a limit at 36 "Larry" <[email hidden]> wrote in message news:1l7t6.143803$[email hidden]... > Is it just me, or is GPL limited to around 36fps no matter what hardwareyou > throw at it ? > > Now, I get 36fps pretty much all the time, everywhere, but it neverexceeds
Quoted text (7 lines)> 36fps. > > Is this normal ? > > -Larry > >
GraDee 18 Mar 2001 19:54 UTC↳ reply to Larry#195103
Yeah 36fps is the max for GPL and is accepted by most yet unusually GP got roasted for it's FPS limit !?!?! I'm not actually too sure how accurate 36fps is. I'll get flamed for saying this but people (scientific people) say the human eye can't detect anything more than 25fps. I find that to be true in a lot of sims. Some sims you still notice the difference even up to 30fps but even if you dip to 32-33 fps in GPL you start to notice it a lot! I wonder how accurate built-in counters are some times. Larry <[email hidden]> wrote in message news:1l7t6.143803$[email hidden]... > Is it just me, or is GPL limited to around 36fps no matter what hardwareyou > throw at it ? > > Now, I get 36fps pretty much all the time, everywhere, but it neverexceeds
Quoted text (7 lines)> 36fps. > > Is this normal ? > > -Larry > >
"GraDee" <[email hidden]> schreef in bericht news:9933pe$dk6$[email hidden]... > I'll get flamed for saying this but people (scientific people) say thehuman > eye can't detect anything more than 25fps. Which scientific people? Tell them the limits of perception have been established at well over 100 frames per second. In GPL the controls are tied to the frame rate. 25 fps makes your driving a lot less accurate than 36 fps. Bye, Leo
Rats :( -Larry "Jim L" <[email hidden]> wrote in message news:_A7t6.12702$[email hidden]...
Quoted text (20 lines)> > yep there's a limit at 36 > > "Larry" <[email hidden]> wrote in message > news:1l7t6.143803$[email hidden]... > > Is it just me, or is GPL limited to around 36fps no matter what hardware > you > > throw at it ? > > > > Now, I get 36fps pretty much all the time, everywhere, but it never > exceeds > > 36fps. > > > > Is this normal ? > > > > -Larry > > > > > >
So _that's_ why it feels so much better, yet doesn't have higher frame rates :) -Larry "Joachim Blum" <[email hidden]> wrote in message news:993bd3$vhb$02$[email hidden]... > "GraDee" <[email hidden]> schrieb im Newsbeitrag > news:9933pe$dk6$[email hidden]... > > Hi! > > > Yeah 36fps is the max for GPL and is accepted by most yet unusually GPgot > > roasted for it's FPS limit !?!?! > > I'm not actually too sure how accurate 36fps is. > > I'll get flamed for saying this but people (scientific people) say the > human > > eye can't detect anything more than 25fps. I find that to be true in alot > > of sims. > > Some sims you still notice the difference even up to 30fps but even ifyou > > dip to 32-33 fps in GPL you start to notice it a lot! > > I wonder how accurate built-in counters are some times. > > The special problem with GPL is, that its internal physics engine isrunning
Quoted text (11 lines)> at steady 288 Hz, no matter what fps your hardware is capable of. The only > way to get the output on screen properly synchronized with the internal > physics is to nail the fps-rate on 36 (that's 288 divided by 8) and that's > exactly what GPL is doing. If your hardware is too slow (i. e. your > framerate drops), you'll miss significant information from the physics > engine because of its realtime behaviour and therefore your driving will > become more or less jerky. > > Regards > Crash >
Andrew MacPherson <[email hidden]> wrote in message news:[email hidden]...
Quoted text (9 lines)> [email hidden] (Leo Landman) wrote: > > > Which scientific people? > > Yuri Geller, Mystic Meg, Eric Von Daniken.... *that* kind of scientific > people ;-) > > Andrew McP >
hehe, well, supposedly that's the fact, It's like TV, at a correctly timed 25fps you can notice a difference but come on, after that you can't. Talk about 60fps, you can't see a visible frame rate change, just a boost in PC performance. 60fps on a Tv couldn't be detected since you don't have the PC telling you what it's doing. 25 might be pushing, it, i think you can tell up to 30fps if your sensitive enough but after that, not really. Anyway, that's off topic, my point is that you need solid 36fps to run smoothly in GPL, even 32-33 is jumpy, it's different to all sims. That leads me to believe that each game seems to have it's own interpretation of FPS and forgets that it stands for frames per SECOND! due to slow-mo effects. Sure, it's easy for a person to add to their own game a graphic telling them the are getting 100fps, doesn't mean they actually are though.
"GraDee" <[email hidden]> schrieb im Newsbeitrag news:9933pe$dk6$[email hidden]... Hi! > Yeah 36fps is the max for GPL and is accepted by most yet unusually GP got > roasted for it's FPS limit !?!?! > I'm not actually too sure how accurate 36fps is. > I'll get flamed for saying this but people (scientific people) say thehuman > eye can't detect anything more than 25fps. I find that to be true in a lot > of sims. > Some sims you still notice the difference even up to 30fps but even if you > dip to 32-33 fps in GPL you start to notice it a lot! > I wonder how accurate built-in counters are some times. The special problem with GPL is, that its internal physics engine is running at steady 288 Hz, no matter what fps your hardware is capable of. The only way to get the output on screen properly synchronized with the internal physics is to nail the fps-rate on 36 (that's 288 divided by 8) and that's exactly what GPL is doing. If your hardware is too slow (i. e. your framerate drops), you'll miss significant information from the physics engine because of its realtime behaviour and therefore your driving will become more or less jerky. Regards Crash
On Mon, 19 Mar 2001 01:04:34 +0100, "Leo Landman" <[email hidden]> wrote:
Quoted text (13 lines)> >"GraDee" <[email hidden]> schreef in bericht >news:9933pe$dk6$[email hidden]... > >> I'll get flamed for saying this but people (scientific people) say the >human >> eye can't detect anything more than 25fps. > >Which scientific people? Tell them the limits of perception have been >established at well over 100 frames per second. > >In GPL the controls are tied to the frame rate. 25 fps makes your driving a >lot less accurate than 36 fps.
So 36fps should be the upper and lower limit. For example, in my own sim, I read controls as fast as the framerate (could be done better by having an internal controls frequency as well, independent of framerate). But I also send out FF information every rendered frame. Which may have quite some impact, since too much going out (at 100fps for example) may bottleneck on the FF communication speed. Ruud van Gaal, GPL Rank +53.25 Pencil art : http://www.marketgraph.nl/gallery/ Free car sim : http://www.marketgraph.nl/gallery/racer/

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