GPL: Core.ini

Anh oldie but a goodie - recently reinstelled here on a new compy, can someone recommend the right numbers in core.ini for FF, please? You know, damping; latency and torque. Cheers! -- Colin ICQ 25485061

FWIW, on my LWFF, I use: Damping = 120 Latency = 0.02 Torque = 175.000 Colin Harris wrote:

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> Anh oldie but a goodie - recently reinstelled here on a new compy, can > someone recommend the right numbers in core.ini for FF, please? You know, > damping; latency and torque. > Cheers! > > -- > > Colin > ICQ 25485061

-- Bert

This could be good thread. Share experience. I think you have too high latency, so your FF responce is not sharp enough ( it is blury), so you have to damp it too much. My setup ( LWFF) : Damping = 175 Latency = 0.015 Torque = 175 P.S.: Don't forget [ Hack ] steer_ratio = 0 ; Enable low speed ratio override "BRH" <[email hidden]> wrote in message news:[email hidden]... : FWIW, on my LWFF, I use: : : Damping = 120 : Latency = 0.02 : Torque = 175.000

thanks, lads, keep 'em coming -- Colin ICQ 25485061 Mario Petrinovic <[email hidden]> wrote in message news:99ck9v$9sh6$[email hidden]... > This could be good thread. Share experience.

G'day there mate, You might as well see mine which I use for LWFF mostly straight off eaglewomans page.. anyway works for me. [ Hack ] steer_ratio = 1 ; Enable low speed ratio override [Joy ] allow_force_feedback = 1 ; Use FF if device has it force_feedback_damping = 5.000000 ; force feedback damping coefficient force_feedback_latency = 0.020000 ; force feedback latency (secs) max_steering_torque = 350.000000 ; steering torque giving max device force "Colin Harris" <[email hidden]> wrote in message news:AKlu6.10186$[email hidden]...

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> thanks, lads, keep 'em coming > > -- > > > Colin > ICQ 25485061 > Mario Petrinovic <[email hidden]> wrote in message > news:99ck9v$9sh6$[email hidden]... > > This could be good thread. Share experience. > > > >

On Fri, 23 Mar 2001 01:24:42 +1200, "Stu C" <[email hidden]> wrote: ... >[Joy ] >allow_force_feedback = 1 ; Use FF if device has it >force_feedback_damping = 5.000000 ; force feedback damping coefficient >force_feedback_latency = 0.020000 ; force feedback latency (secs) >max_steering_torque = 350.000000 ; steering torque giving max device force This is a bit more technical, but I'm wondering again. Ok, so the latency is actually the time it takes for the command for a force leaves GPL and actually ends up in the hands of the player, somewhat. In my Ferrari (in my sim), I can't really get the steering torque doing more than 100Nm, so 350Nm seems a bit much? And the damping, what exactly would it be damping here? Just the general forces? Hard changes in the force (getting smoothed out)? And how would you formulate it in an equation? Seems a bit of a magical coefficient to me still. Perhaps people with experimental results can shine a bit of light on this. I have no physical idea btw of what 350Nm (it IS Nm is it?) would feel like on a steering wheel. Ruud van Gaal, GPL Rank +53.25 Pencil art : http://www.marketgraph.nl/gallery/ Free car sim : http://www.marketgraph.nl/gallery/racer/

Hi Ruud, I've pasted some info about core.ini below from a previous thread, maybe of some help. This was posted by Chris "Ambulater" Lee. Rgds Phil. "Ruud van Gaal" <[email hidden]> wrote in message news:[email hidden]... > On Fri, 23 Mar 2001 01:24:42 +1200, "Stu C" <[email hidden]> > wrote:Snipped a bit

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> Perhaps people with experimental results can shine a bit of light on > this. I have no physical idea btw of what 350Nm (it IS Nm is it?) > would feel like on a steering wheel. > > > Ruud van Gaal, GPL Rank +53.25 > Pencil art : http://www.marketgraph.nl/gallery/ > Free car sim : http://www.marketgraph.nl/gallery/racer/

Here it is: Jay, if you've patched to 1.2 and have "allow_force_feedback =1" in your core.ini you should be getting FF effects if you're wheel is working. Check your ACT-LABS wheel in the controller/game Options applet to make sure the sample effects are working, also make sure you have feedback effects all the way up (to the right in the controller applet). You might also double check your core.ini just to make sure your "allow_force_feedback" value isn't set to 0 somehow. This is what I use with my ACT-LABS wheel: [ Joy ] allow_force_feedback = 1 force_feedback_damping = 350.0 force_feedback_latency = 0.025 max_steering_torque = 300.0 LATENCY: I determined the latency by driving over curbs repeatedly and adjusting the value until all four wheels produced individual FF effects in sync with what I was seeing from an outside view of the car. MAX STEERING TORQUE: This is an interesting one. This is not actually the maximum torque your wheel will produce, but is instead the *THRESHOLD* at which your wheel produces it's maximum force. Let's just pick some numbers out of the air to illustrate this. Let's say the GPL software models the torque of shifting at high revs at 50N, fish-tailing through a corner at 200N, and a complete wipe out at 300N. If you were to set your max steering torque threshold at "50" all of these effects would be equally powerful as all would produce the maximum amount of torque possible. So if you set this threshold value too low the car is virtually undrivable and there is little distinction between the various forces. If however you set the value to 300 you'll feel a marked gradation between these 3 very different effects. If you set this threshold value too high (say 2000), you'll lose all steering torque altogether as no steering torque force will ever reach the threshold to trigger the max effect. So how do you set this? First set damping in both the controller panel and core.ini to 0. We don't want to mess with that right now. From a dead stop take your hands off the wheel then gradually accelerate. If the forward momentum of the car very gradually brings the front wheels (and steering wheel) into forward alignment (as in a real car with manual steering) then you've got the threshold value just about right. If the front wheels (and steering wheel) do not center and your car just continues in a perpetual circle, then the threshold value is too high. If the wheel suddenly snaps to center and or see-saws violently, then you have the threshold set too low. Adjusting the threshold to level that just barely produces a centering effect at low speeds will result in a very drivable car and nice subtle tactile inputs that will cue you as to the status of your vehicle. Now here is the part that really throws people: the Max Steering Torque threshold *ONLY* affects *STEERING TORQUE FORCE* or the forces related to engine torque, torque caused by maneuvering through corners, wheel centering torque, etc. It does *NOT* affect any of the forces related to crashing into guardrails or driving on grass. For some odd reason these are affected by damping. DAMPING: This does in fact do what it says. It causes increased "friction" or "viscosity" in the movement of the wheel and therefore also tends to lessen some effect spikes. Now the really odd thing is, as you increase the damping value and the friction on the wheel, you also increase the forces felt when driving on grass or slamming into rails. I recommend adjusting this value just high enough to just barely feel a subtle difference between pavement and grass when one single wheel drops off the road. Using this as a guide you'll be able to tell with your eyes closed if all four wheels are on the road, hitting curbs will feel realistic, guard rails will give you a jolt but usually allow you to correct, and the wheel will not be so tight that you begin to lose torque effects. The key to good driving and useful tactile information is subtlety in each of these settings. GPL is not an arcade game. Finally, I have the force effects in my controller applet at 100% and dampening effects to 0% (you've already adjusted this in the core.ini and adding more damping in the controller panel will just result in reduced subtlety in effects). I use full linear steering in GPL and a steering ratio of 15:1. (these latter two things are purely a matter of taste, but may effect the way you feel the forces at work in your wheel or at least the way your car responds as torque is placed on the wheel). Hope this helps. -- Chris "Ambulater" Lee "Don't Bother Running.........You'll Just Die Tired." Reviews at www.sim-arena.com "Jay Wolfe" <[email hidden]> wrote in message news:3xa36.44320$[email hidden]... > 1. i am using an Act Labs Force RS w/shifter > 2. i have patched to 1.2.0.1 > 3. i have changed the core.ini to reflect: > > [ Joy ] > allow_force_feedback = 1 > force_feedback_damping =40.000000 > force_feedback_latency = 0.085000 > max_steering_torque = 225.000000 > > no dice. i have yet to get any force feedback effects as of yet. > > also, someone had suggested that those default settings are not premium for > the Force RS. what are? > > thanks in advance, > > j > >

On Fri, 23 Mar 2001 00:21:13 GMT, "Philip Ford" <[email hidden]> wrote: >Hi Ruud, > >I've pasted some info about core.ini below from a previous thread, maybe of >some help. This was posted by Chris "Ambulater" Lee. Thanks Phil, it will help. Now I only have to find some to time to read it. :) Ruud van Gaal, GPL Rank +53.25 Pencil art : http://www.marketgraph.nl/gallery/ Free car sim : http://www.marketgraph.nl/gallery/racer/