rec.autos.simulators

GPL: force_feedback_damping = 0 is very bad!

Aubre

GPL: force_feedback_damping = 0 is very bad!

by Aubre » Wed, 26 Jan 2000 04:00:00

It's true you know.  Huge thanks to GTX_SlotCar for pointing this out!

I've got a Saitek wheel.  I just set damping to 1200 instead of 0, and
noticed effects that definitely weren't there before.  Also most of the
annoying friction is gone!  Much easier to feel the front tires gripping
now.  Really feels a lot like the rack-and-pinion steering on my little
Honda Civic!  Try it!

I started a new thread just because I wanted to make people aware that this
isn't just for the Ferrari wheel.

Thanks again, Slot!

-A

Alan Orto

GPL: force_feedback_damping = 0 is very bad!

by Alan Orto » Thu, 27 Jan 2000 04:00:00

I did the same thing with my MSFF and it made it feel better. I wish GPL
had a castor adjustment in it though as it would adjust the re-centering
of the wheel.

> It's true you know.  Huge thanks to GTX_SlotCar for pointing this out!

> I've got a Saitek wheel.  I just set damping to 1200 instead of 0, and
> noticed effects that definitely weren't there before.  Also most of the
> annoying friction is gone!  Much easier to feel the front tires gripping
> now.  Really feels a lot like the rack-and-pinion steering on my little
> Honda Civic!  Try it!

> I started a new thread just because I wanted to make people aware that this
> isn't just for the Ferrari wheel.

> Thanks again, Slot!

> -A

jbo..

GPL: force_feedback_damping = 0 is very bad!

by jbo.. » Thu, 27 Jan 2000 04:00:00



I have a Saitek wheel, too -- could you send me your .ini file or post
your settings for FF?  If you e-mail it to me, use this address:


Thanks!

-- JB

Sent via Deja.com http://www.deja.com/
Before you buy.

Michael Youn

GPL: force_feedback_damping = 0 is very bad!

by Michael Youn » Thu, 27 Jan 2000 04:00:00

Doesn't it? I knocked the front end out of alignment in a qualifying heat
and it definitely tracked straight with the wheel off center. This is a huge
improvement over the original non-FF wracked response: you tug it off center
against spring pressure until the car tracked straight.

Michael.


Aubre

GPL: force_feedback_damping = 0 is very bad!

by Aubre » Thu, 27 Jan 2000 04:00:00

Well, I'm still experimenting.
If you're feeling adventurous you can try this:

force_feedback_damping = 2700.000000
force_feedback_latency = 0.300000
max_steering_torque = 3300.000000

Far beyond the values reccomended in the readme file, but you get some
interesting effects.  The car almost seems to steer itself.  I think it
feels a bit too squishy, though.

For now I'm using this, which feels more taught, but seems to lack some of
the neat effects:

force_feedback_damping = 40.000000
force_feedback_latency = 0.300000
max_steering_torque = 400.000000

By the way, I've got a Celeron 366.  If your system is faster, you might
want less latency.

I think I'll experiment with gradually higher damping values.  It's
interesting that inreasing the damping makes the overall force more powerful
and requires much higher torque values.  I don't fully understand it yet.

Naturally, you'll be less impressed than I was if you didn't have damping
set to 0 to begin with. ;o)

-A


>I have a Saitek wheel, too -- could you send me your .ini file or post
>your settings for FF?  If you e-mail it to me, use this address:


>Thanks!

>-- JB

>Sent via Deja.com http://www.deja.com/
>Before you buy.

GTX_SlotCa

GPL: force_feedback_damping = 0 is very bad!

by GTX_SlotCa » Thu, 27 Jan 2000 04:00:00

Gee Marc,  when I set my damping to 4000 and steering torque to 2000, the
wheel is smooth, I feel every little slip of the tires, the road is smooth,
if I go onto the edge of the grass the wheel buzzes (for lack of a better
word), if I run on the grass the wheel bounces slightly, running onto a curb
tosses my wheel and hitting a rail almost pulls it out of my hands. Which of
these feedbacks would be spurious or unintended? I'm not feeling bumps that
aren't there. However, with damping at 5 and torque at 200, we've all
(including you with the Saitek according to a previous post) felt spurious
forces on a smooth road that shouldn't be there. Frankly, it is not logical
to set the damping to zero with Constant Force feedback programming. If you
try these settings and you like them, you can still complain about lack of
forces in N3 <g> so all is not lost.

Slot


> The question we must answer is of the new "effects" that appear when you
> crank up the damping, how many of them are supposed to be there and how
many
> are spurious, unwanted, unintended??  When I crank my damping up to very
> high levels, I get mostly the latter.

> Marc.



> > It's true you know.  Huge thanks to GTX_SlotCar for pointing this out!

> > I've got a Saitek wheel.  I just set damping to 1200 instead of 0, and
> > noticed effects that definitely weren't there before.  Also most of the
> > annoying friction is gone!  Much easier to feel the front tires gripping
> > now.  Really feels a lot like the rack-and-pinion steering on my little
> > Honda Civic!  Try it!

> > I started a new thread just because I wanted to make people aware that
> this
> > isn't just for the Ferrari wheel.

> > Thanks again, Slot!

> > -A

Alan Orto

GPL: force_feedback_damping = 0 is very bad!

by Alan Orto » Fri, 28 Jan 2000 04:00:00

I think you changed the toe out/in and not the castor.

> Doesn't it? I knocked the front end out of alignment in a qualifying heat
> and it definitely tracked straight with the wheel off center. This is a huge
> improvement over the original non-FF wracked response: you tug it off center
> against spring pressure until the car tracked straight.

> Michael.



> >  ... I wish GPL
> > had a castor adjustment in it though as it would adjust the re-centering
> > of the wheel.

Marc Collin

GPL: force_feedback_damping = 0 is very bad!

by Marc Collin » Fri, 28 Jan 2000 04:00:00

The question we must answer is of the new "effects" that appear when you
crank up the damping, how many of them are supposed to be there and how many
are spurious, unwanted, unintended??  When I crank my damping up to very
high levels, I get mostly the latter.

Marc.


jbo..

GPL: force_feedback_damping = 0 is very bad!

by jbo.. » Fri, 28 Jan 2000 04:00:00



> Well, I'm still experimenting.
> If you're feeling adventurous you can try this:

> force_feedback_damping = 2700.000000
> force_feedback_latency = 0.300000
> max_steering_torque = 3300.000000

> Far beyond the values reccomended in the readme file, but you get some
> interesting effects.  The car almost seems to steer itself.  I think
it
> feels a bit too squishy, though.

> For now I'm using this, which feels more taught, but seems to lack
some of
> the neat effects:

> force_feedback_damping = 40.000000
> force_feedback_latency = 0.300000
> max_steering_torque = 400.000000

> By the way, I've got a Celeron 366.  If your system is faster, you
might
> want less latency.

> I think I'll experiment with gradually higher damping values.  It's
> interesting that inreasing the damping makes the overall force more
powerful
> and requires much higher torque values.  I don't fully understand it
yet.

> Naturally, you'll be less impressed than I was if you didn't have
damping
> set to 0 to begin with. ;o)

> -A


> >I have a Saitek wheel, too -- could you send me your .ini file or
post
> >your settings for FF?  If you e-mail it to me, use this address:


> >Thanks!

> >-- JB

> >Sent via Deja.com http://www.deja.com/
> >Before you buy.

Sent via Deja.com http://www.deja.com/
Before you buy.

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