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GPL: force_feedback_damping = 0 is very bad!

9 posts by 6 people · 25 Jan 2000 - 27 Jan 2000

Aubrey 25 Jan 2000#516387
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 Orton 26 Jan 2000#516625
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.
Quoted text (14 lines)> 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.. 26 Jan 2000#516626
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.
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.
Aubrey 26 Jan 2000#516628
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
Quoted text (12 lines)>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_SlotCar 26 Jan 2000#516629
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
Quoted text (23 lines)> 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 Orton 27 Jan 2000#516769
I think you changed the toe out/in and not the castor.
Quoted text (13 lines)> 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.
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.. 27 Jan 2000#516771
Quoted text (9 lines)> 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
Quoted text (7 lines)> 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
Quoted text (8 lines)> set to 0 to begin with. ;o) > -A > >I have a Saitek wheel, too -- could you send me your .ini file or
post
Quoted text (11 lines)> >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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