rFactor 2 Online Tools by Chris “redapg”

Discussion in 'Modding' started by Slow Motion, Oct 11, 2016.

  1. redapg

    redapg Registered

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    My Eyes are too old as it seems. :)
    From the Pictures, i don't see a Difference.
    So it would good to have it on my own PC, that i can switch between old and new Tire Model, to better see it.
     
  2. redapg

    redapg Registered

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    Yes, but to be honest, i don't remember exactly anymore what exactly it is.
    It is the oldest Tire resize Tool and i did make it ~ 10 Years ago.
    But what i remember, is that the Multipliers get definitely set to 1, because to leave them as they are, if they are not 1 in the uploaded Tires, makes no Sense at all, because they, of course, also define the Tire Size.
    But when they are 1, the Nodes define the Size.
    What could have an Influence too, is the Height of the Tire Tread.
    If i remember it right, i did add that to the Radius Calculations of the Nodes, because it gave me better Results.
     
    Last edited: Nov 5, 2024
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  3. mantasisg

    mantasisg Registered

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    The difference is not as great as in Svictors example, but it becomes very obvious when wheels starts going through body mesh.

    @redapg When you say size multiplyers should be on "0", do you literally mean 0, or 0 is 1 as per default in tgm tires ? Or setting it to 0, has a different effect, maybe same as it would be to removing line completely ? IDK if you can remove that line, I guess you can.

    I will either send a devmode car to you later, or upload to workshop, or both. As everything right now is semi-alright with the car.
     
  4. redapg

    redapg Registered

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    I've meant 1, but wrote 0 because i was in a Rush a little bit. :)
    I will make a Test now.
     
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  5. redapg

    redapg Registered

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    @mantasisg I've made a Test with the Skip Barber now.
    The Size between tbc (SkipBarber.tbc with only 1 Compound) and tgm, when you use Alt+T is identical.
    At least i would call it identical. :)
    I did check the Radius of the 3D Tire and the Radius from the tbc and the tbc Radius is 0.2957 and the 3D Radius 0.292764.
    That are ~3 mm Difference, so we can ignore it.

    Then i did load the original front Tire into my Resize Tool, did not change anything, downloaded it and checked it with Alt+T too.
    There also was no visible Difference, even if my Tool does not use the exact same Values, due to the Fact, that i don't use 6 Decimals in the Dropdowns.

    Then i did use the front Tire from our F3 Mod and resized it to the Values that i got, when i did upload the original Skip Barber front Tire.
    And with that, the resized Tire, when i switch the Tire Model, has a smaller Diameter than the tbc Tire.
    But when i compare the Radius Value from the Center Node, i get 0.293484 from the original Tire and 0.293300 from the resized F3 Tire.
    That is a Difference of 0,184 mm and should not be visible when i switch between old and new Tire Model.

    So my Suspicion is, that it has something to do with the Stiffness of the Tire Wall Material, that makes the Difference.

    I will try to "display" the Size of the Tire in DevMode.
    Maybe that sheds some Light to it.
     
  6. redapg

    redapg Registered

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    Not 100 % perfect, but it should be OK to measure the Tire Radius.
    It's the Skip Barber LF Tire, tbc Radius is 0.2957 and the measure Mesh shows ~0.298.
    @mantasisg If you want, i can upload the measure Mesh, that you can check your Radius.

    [​IMG]
     
  7. mantasisg

    mantasisg Registered

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    Thank you, this is funky device haha I don't need that. At least not for now, maybe some time later. I trust the size that comes with tbc tire, so it is good enough to try to minimise radius difference visually between two tire models. And it makes sense to interpret it as tire deformation due pressure, as an example

    Good to hear that your resize tool comes with negligable errors. In my case the tire is most definitely couple centimeters larger in radius, than it is defined by nodes. I had to go to size multiplier of around 0.92 to go down to roughly 30cm radius.

    Anyway, I am pretty happy about how my 911 is now, actually I think it even drives too well. So perhaps the multiplier values for radius aren't too bad. But when I applied them to width wrongly I didn't feel well about handling, although I also was rather ill yesterday.
     

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