FF spikes in GPL?

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

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 Haqsau <[email hidden]> wrote in message news:LOo77.20950$[email hidden]...

Quoted text (16 lines)

> 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 > >

are you using windows 2k? "Alex Kihurani" <[email hidden]> wrote in message news:Qeq77.28203$[email hidden]... > 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 hasthe

Quoted text (23 lines)

> best advice > > Thanks, > Alex > Haqsau <[email hidden]> wrote in message > news:LOo77.20950$[email hidden]... > > 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 > > > > >

What are spikes? I'm running windows 98 and am having problems with the force feed letting go (no ability to steer and the throttle locking open) until I hit something, then it comes back. I'm running NASCAR3. Is this the same thing and is there any suggestions on what causes this? Darren Taylor <[email hidden]> wrote in message news:pqu77.13727$[email hidden]... > are you using windows 2k? > > "Alex Kihurani" <[email hidden]> wrote in message > news:Qeq77.28203$[email hidden]... > > GPL is weird :) torque is actually damping and damping is actuallytorque,

Quoted text (9 lines)

> > so increase torque and test that. Go to http://www.slottweak.com he has > the > > best advice > > > > Thanks, > > Alex > > Haqsau <[email hidden]> wrote in message > > news:LOo77.20950$[email hidden]... > > > 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 valuesin > > > core.ini.sample, I found that I was getting spikes every once in awhile > > > on long straights. I searched around, and found that most people > > > advised setting the values to much higher numbers. I didn't go upinto > > > 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 eliminatespikes?

Quoted text (9 lines)

> > > I am using a Logitech FF GP wheel. > > > > > > Thanks, > > > Hal > > > > > > > > > >

I am not Thanks, Alex Darren Taylor <[email hidden]> wrote in message news:pqu77.13727$[email hidden]... > are you using windows 2k? > > "Alex Kihurani" <[email hidden]> wrote in message > news:Qeq77.28203$[email hidden]... > > GPL is weird :) torque is actually damping and damping is actuallytorque,

Quoted text (9 lines)

> > so increase torque and test that. Go to http://www.slottweak.com he has > the > > best advice > > > > Thanks, > > Alex > > Haqsau <[email hidden]> wrote in message > > news:LOo77.20950$[email hidden]... > > > 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 valuesin > > > core.ini.sample, I found that I was getting spikes every once in awhile > > > on long straights. I searched around, and found that most people > > > advised setting the values to much higher numbers. I didn't go upinto > > > 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 eliminatespikes?

Quoted text (9 lines)

> > > I am using a Logitech FF GP wheel. > > > > > > Thanks, > > > Hal > > > > > > > > > >

On Wed, 25 Jul 2001 00:56:11 GMT, "Haqsau" <[email hidden]> wrote:

Quoted text (15 lines)

>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 >

I had the same problem on that wheel, but not on a MSFF wheel. Try turning down the FF strength in Windows.

No, Windows 98. "Darren Taylor" <[email hidden]> wrote in message news:pqu77.13727$[email hidden]... > are you using windows 2k? > > "Alex Kihurani" <[email hidden]> wrote in message > news:Qeq77.28203$[email hidden]... > > GPL is weird :) torque is actually damping and damping is actuallytorque, > > so increase torque and test that. Go to http://www.slottweak.com hehas

Quoted text (8 lines)

> the > > best advice > > > > Thanks, > > Alex > > Haqsau <[email hidden]> wrote in message > > news:LOo77.20950$[email hidden]... > > > 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. Ihave > > > installed the 1.2 patch, the D3D patch, and have added thenecessary > > > lines to core.ini to enable force feedback. Using the examplevalues in > > > core.ini.sample, I found that I was getting spikes every once in awhile > > > on long straights. I searched around, and found that most people > > > advised setting the values to much higher numbers. I didn't go upinto > > > the thousands but I did try using up to 600 for damping and about300 > > > for torque. Spikes are still there. Rather than spend allevening > > > tweaking it can anyone tell me what settings to use to eliminatespikes?

Quoted text (9 lines)

> > > I am using a Logitech FF GP wheel. > > > > > > Thanks, > > > Hal > > > > > > > > > >

What I am calling spikes are when the wheel jerks to one side and then comes immediately right back again, for no particular reason. I don't think it is the same problem you are having. "bill jones" <[email hidden]> wrote in message news:rvy77.8498$[email hidden]... > What are spikes? I'm running windows 98 and am having problems withthe > force feed letting go (no ability to steer and the throttle lockingopen) > until I hit something, then it comes back. I'm running NASCAR3. Isthis the

Quoted text (10 lines)

> same thing and is there any suggestions on what causes this? > Darren Taylor <[email hidden]> wrote in message > news:pqu77.13727$[email hidden]... > > are you using windows 2k? > > > > "Alex Kihurani" <[email hidden]> wrote in message > > news:Qeq77.28203$[email hidden]... > > > 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

Quoted text (8 lines)

> > the > > > best advice > > > > > > Thanks, > > > Alex > > > Haqsau <[email hidden]> wrote in message > > > news:LOo77.20950$[email hidden]... > > > > 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 thenecessary > > > > lines to core.ini to enable force feedback. Using the examplevalues > in > > > > core.ini.sample, I found that I was getting spikes every once ina > while > > > > on long straights. I searched around, and found that mostpeople > > > > advised setting the values to much higher numbers. I didn't goup > into > > > > the thousands but I did try using up to 600 for damping andabout 300 > > > > for torque. Spikes are still there. Rather than spend allevening

Quoted text (13 lines)

> > > > tweaking it can anyone tell me what settings to use to eliminate > spikes? > > > > I am using a Logitech FF GP wheel. > > > > > > > > Thanks, > > > > Hal > > > > > > > > > > > > > > > > >

Isnt this called "wheel jerks to one side and then comes immediately right back again??" :) just curious... "Haqsau" wrote: | What I am calling spikes are when the wheel jerks to one side and then | comes immediately right back again, for no particular reason. I don't | think it is the same problem you are having. | --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.265 / Virus Database: 137 - Release Date: 7/18/2001

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 "Alex Kihurani" <[email hidden]> wrote in message news:Qeq77.28203$[email hidden]... > GPL is weird :) torque is actually damping and damping is actuallytorque, > so increase torque and test that. Go to http://www.slottweak.com hehas the

Quoted text (7 lines)

> best advice > > Thanks, > Alex > Haqsau <[email hidden]> wrote in message > news:LOo77.20950$[email hidden]... > > 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. Ihave > > installed the 1.2 patch, the D3D patch, and have added the necessary > > lines to core.ini to enable force feedback. Using the examplevalues in > > core.ini.sample, I found that I was getting spikes every once in awhile > > on long straights. I searched around, and found that most people > > advised setting the values to much higher numbers. I didn't go upinto > > the thousands but I did try using up to 600 for damping and about300 > > for torque. Spikes are still there. Rather than spend all evening > > tweaking it can anyone tell me what settings to use to eliminatespikes?

Quoted text (7 lines)

> > I am using a Logitech FF GP wheel. > > > > Thanks, > > Hal > > > > >

[ Joy ] allow_force_feedback = 1 force_feedback_damping = 55 force_feedback_latency = 0.05 max_steering_torque = 250 I use these settings in the core.ini file. I also have a Logitech FF GP. No more spikes.

<groan> ;o) "Thom j." <[email hidden]> wrote in message news:J7I77.28792$[email hidden]... > Isnt this called "wheel jerks to one side and then comes > immediately right back again??" :) just curious... > > "Haqsau" wrote: > | What I am calling spikes are when the wheel jerks to one side andthen > | comes immediately right back again, for no particular reason. Idon't

Quoted text (11 lines)

> | think it is the same problem you are having. > | > > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.265 / Virus Database: 137 - Release Date: 7/18/2001 > >

I guess I will try that tomorrow. Tonight I tried: [ Joy ] allow_force_feedback = 1 force_feedback_damping = 400 force_feedback_latency = 0.005 max_steering_torque = 400 With those settings I only had one spike, on the back straight at Mosport going full throttle up the hill. Other than that it was well behaved. I still need to try zero latency, and I will also try your suggestion when I get a chance. Thanks, Hal "+G�" <[email hidden]> wrote in message news:2zK77.270925$[email hidden]...

Quoted text (8 lines)

> [ Joy ] > allow_force_feedback = 1 > force_feedback_damping = 55 > force_feedback_latency = 0.05 > max_steering_torque = 250 > > > I use these settings in the core.ini file. I also have a Logitech FF

GP. > No more spikes. > > >

"Haqsau" <[email hidden]> wrote in message news:GbI77.22335$[email hidden]... > 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. > I use latency of 0 on a fast computer and I'll still see these spikes (one or two over say, 10 laps). It's followed me through two different wheels, three computers and two operating systems. I've never seen a resolution to this problem. Dale.

Sorry "Haqsau" :( Bad day...lol "Haqsau" wrote:

Quoted text (8 lines)

| <groan> | | ;o) | | "Thom j." wrote: | > Isnt this called "wheel jerks to one side and then comes | > immediately right back again??" :) just curious... |

--- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.265 / Virus Database: 137 - Release Date: 7/18/2001

On Wed, 25 Jul 2001 22:59:50 GMT, "Haqsau" <[email hidden]> wrote: > I'm going to try some lower settings, and maybe even 0, tonight > to see what happens. I will also try your suggestion. I'm glad you posted this, as my copy of GPL from purplus arrived yesterday and I was having the same problem. I took the latency down to 0 and it's all but gone. -Scott Johnson Fry Mumia http://www.danielfaulkner.com

On older wheels I would suspect the steering pot to be worn out. Also check whether your setup has a high asymetrical camber-setting. GPL is a bit picky in that. HTH JensSchumi On Wed, 25 Jul 2001 00:56:11 GMT, "Haqsau" <[email hidden]> wrote:

Quoted text (15 lines)

>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 >

--------------------------------------------- LWFF Ball Bearing conversion at: http://members.nbci.com/JensSchu/ GPLRank: -13 Monsters of GPL: sub 200

New wheel, standard setup. Granted a new wheel could still have a bad pot, but I don't get the spikes in any other games so I doubt that is the cause. I have been playing around with core.ini settings some more. I can't seem to get rid of it entirely, but I have been able to minimize it. And I have yet to be thrown off the road because of it, so it is mostly just an annoyance. Thanks, Hal "JS" <[email hidden]> wrote in message news:[email hidden]... > On older wheels I would suspect the steering pot to be worn out. > Also check whether your setup has a high asymetrical camber-setting.GPL is a

Quoted text (7 lines)

> bit picky in that. > > HTH > JensSchumi > > > On Wed, 25 Jul 2001 00:56:11 GMT, "Haqsau" <[email hidden]>

wrote: > > >Okay I finally got GPL, I wrote a letter to my relatives informingthat > >I wouldn't be seeing them for a while, and I sat down to play. Ihave > >installed the 1.2 patch, the D3D patch, and have added the necessary > >lines to core.ini to enable force feedback. Using the example valuesin > >core.ini.sample, I found that I was getting spikes every once in awhile > >on long straights. I searched around, and found that most people > >advised setting the values to much higher numbers. I didn't go upinto > >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 eliminatespikes?

Quoted text (12 lines)

> >I am using a Logitech FF GP wheel. > > > >Thanks, > >Hal > > > > --------------------------------------------- > LWFF Ball Bearing conversion at: > http://members.nbci.com/JensSchu/ > > GPLRank: -13 > Monsters of GPL: sub 200

"Haqsau" <[email hidden]> wrote in message news:WvH97.27271$[email hidden]... : I can't seem to get rid of it entirely, but I have been able to minimize : it. And I have yet to be thrown off the road because of it, so it is : mostly just an annoyance. : Same situation here. For some users (including me) this never goes away. The only time I got turfed off the road was when the wheel jerked as I was airborne over the Flugplatz. Unfortunately, I didn't get the wheels straight before landing. I counted the rolls at the time but forget now... one... two.. three... four... five... Dale. ================================================== GPL Rank: +106.12 DSM: www.dsm.org CP990 Pano Gallery: http://members.home.net/digitallattice/pano.html