rec.autos.simulators

Problems F1GP FPS=50

W. van der Dei

Problems F1GP FPS=50

by W. van der Dei » Fri, 17 Nov 1995 04:00:00

Hi,

I've used the editor to raise the FPS for F1GP v1.05. The doc
mentioned something about a FPS>50 causing problems with the password
protection.

Well this is exactly true, So I used 50FPS. I also used the GPDamage
Editor to make the card a bit more fragile. But with 50FPS on the
first straight at Monza almost 20-24 cars crash completely and are out
of the race.

This happens every race. When I look at the replay the cars are nicely
running together and suddenly someone steers left or right causing a
massive accident.

Also when I use Replay and look at my own car, I see a completely
other Replay than what I really dit, mostly causing my car to crash.

When I lowered the FPS to 25 again, everything works fine.

My machine should be able to handle 50FPS (P100, 32Meg, Number9 Motion
771). When I look at the processor occupancy it's only about 50% on
50FPS.

Doe anyone now what might be wrong?? Can this be fixed or do I have to
live with 25 FPS :-(

Bye,
Wilfred

Steve Smit

Problems F1GP FPS=50

by Steve Smit » Sat, 18 Nov 1995 04:00:00


I've been doing some research in to this area for my Windows F1GP editor
(coming RSN).

Basically, the game engine wasn't designed to handle much more than 25
FPS.  Even at 30 FPS, I had bizarre things happen (I've got a Pentium
120, so processing power isn't an issue).  For instance, I was almost at
the end of a 100% race distance, and I passed another car.  So, I paused
the game to take a look at the replay.  Even though I cleanly outbraked
and passed the car in to a turn, the replay showed a completely different
story and ended up with my car out of the race.  Even more alarming, when
I came out of replay mode, the game had decided that the replay had been
telling the truth, and I lost a certain victory :-(

So, in short, I wouldn't recommend anyone using GPFPS to set the frame
rate higher than 27FPS (the only speed at which I didn't notice any side
effects).  The only situation where it is safer to go higher that this is
if you intend to have a practice session on one of the circuits (ie. only
your own car on the track).  It seems O.K. in this situation.

Steve.


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