I will try that, but I am starting to think that the real problem is
latency. I did a little more reading after posting that message last
night, and found out that the latency setting is used by GPL to
determine how much to predict ahead when calculating the forces. IF you
have high latency in the FF system, the game has to predict ahead,
otherwise it can't make the force happen at the same time that you see
it on screen. But the farther it predicts ahead, the more likely it is
to make a mistake which will have to be immediately corrected on the
next frame, thus a spike. The reason I think it is a prediction error is
that I noticed that when a spike occurs it also shows the wheel on
screen turn sideways, and then it immediately goes back to the straight
ahead position on the next frame. So my thinking is this: we know that
FF requires a fair amount of CPU overhead because most games run more
slowly when you use FF, therefore much of the latency of FF is in the
software, therefore the faster PC's that we all have now should not
require as much latency correction as the ones that GPL was designed
for. I tried turning the latency down from the default 0.085 to 0.020,
and it seemed to reduce, though it did not totally eliminate, the
spikes. I'm going to try some lower settings, and maybe even 0, tonight
to see what happens. I will also try your suggestion.
Thanks,
Hal
> GPL is weird :) torque is actually damping and damping is actually
torque,
> so increase torque and test that. Go to http://www.slottweak.com he
has the
> best advice
> Thanks,
> Alex
> > Okay I finally got GPL, I wrote a letter to my relatives informing
that
> > I wouldn't be seeing them for a while, and I sat down to play. I
have
> > installed the 1.2 patch, the D3D patch, and have added the necessary
> > lines to core.ini to enable force feedback. Using the example
values in
> > core.ini.sample, I found that I was getting spikes every once in a
while
> > on long straights. I searched around, and found that most people
> > advised setting the values to much higher numbers. I didn't go up
into
> > the thousands but I did try using up to 600 for damping and about
300
> > for torque. Spikes are still there. Rather than spend all evening
> > tweaking it can anyone tell me what settings to use to eliminate
spikes?
> > I am using a Logitech FF GP wheel.
> > Thanks,
> > Hal
