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Sneak Peek: Tire Physics Development

Discussion in 'General Discussion' started by stenyak, Jul 7, 2025.

  1. SynthethicMorgan?

    SynthethicMorgan?
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    i suspect that you're under 16
     
  2. stenyak

    stenyak
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    Some people have asked about non-asphalt physics, we can probably split the answer into two topics:

    Deformable terrain geometry: our sim already offers some dynamic terrain behaviour when in contact with loose surface materials. This is not done by permanently altering the terrain geometry, but with special treatment on the tire model and physics engine itself. Permanently deformable terrain geometry is outside the scope of our short-term tire research plans.

    Loose surface tire model: while our collected data is focused on asphalt-like surfaces, some of the insights we gain should be applicable to non-asphalt surfaces. We hope and expect that driving will improve beyond asphalt. For example, if we gained any insights on structural stiffness, then this would be directly applicable to all driving disciplines, including racing, drifting, mudding, rallying, rock crawling, even parking next to a low sidewalk.
     
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  3. bombardier

    bombardier
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    Will there be a tool for people to make their own tires or is it too early to say?
     
  4. stenyak

    stenyak
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    Yeah it's too early to tell at this stage. If we end up creating any new tool, and it has no use for modders, we won't release it (it would mean unnecessary slowing development due to extra development/maintenance/support time and costs for zero benefit). While if such hypothetical tool could benefit modders, and there were no blocking issues (like licensing restrictions or alike), then chances are we'll consider releasing them for the benefit of the community, as we've traditionally done.
     
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  5. Evaner5580

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    They mentioned and showed that they have their own tire testing machine in the game, so hopefully, like the roof crusher, it will be available as a prop for modders to test their tires with.
     
  6. McBeamer94

    McBeamer94
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    And studded rally tires too!!
     
  7. Pr9tkin

    Pr9tkin
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    By the way you should do parallel research on the braking system, in particular brake disks, their heating, wear and tear and the effect of disk heating on wheel heating, which is actually very influential in circuit racing
     
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  8. stenyak

    stenyak
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    We cannot do a lot of parallel research, since we are not a huge team with spare people to work on these topics.

    That said, this is an area of interest for me. So in my own spare time, these past few years I've been keeping track of some simple brake-related information in my trackdays, under as wide a range of conditions/cars/compounds/etc as I could. Very simplistic data collection, and nothing like proper scientific testing in a controlled environment, but better than nothing. Note that this doesn't mean we'll have available dev time for this particular topic any time soon - that depends on whatever the relevant dev has on his pile of priorities above 'brakes'.
     
    #48 stenyak, Jul 12, 2025 at 1:53 AM
    Last edited: Jul 12, 2025 at 2:00 AM
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  9. McBeamer94

    McBeamer94
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    Plus the fact that carbon-ceramic discs are lighter than normal iron ones. I remember the dev team ran into some serious issues with bugs in their first attempt at this topic with the Scintilla. And while I'm glad carbon-ceramic discs spread amongst the modern BeamNG performance vehicles (the Scintilla and both the modern ETKs, plus, along with the Selecta SportPlus 2R tires, I'd also love these brakes to be part of the Vivace S 410Q Arsenic, they certainly could remove some weight from the front end, carrying the 5-cylinder, and they would also remove the worry of fading, since the front brakes of the S 410Q Arsenic will fade from continuous deceleration sooner or later), some work on their weight reduction has to be done sometime in the future.
    Can't rush work though! :)

    P.S.: The carbon fiber roofs of the ETK ttSport+ and the FCV Arsenic models also need some weight shaving! :)
     
    #49 McBeamer94, Jul 12, 2025 at 3:12 AM
    Last edited: Jul 14, 2025 at 1:03 PM
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  10. bleussaille

    bleussaille
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    pov minecraft updates, i don't think it will take that long, i think atleast 5 month
    --- Post updated ---
    just look between these two update there only 3 month, so not in yearS
     

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  11. ClarOnNG

    ClarOnNG
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    we're talking about the new tire physics here, not updates in general

    the new tire physics will take forever to make, that video was just a little sneak peek
     
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  12. HybridRooDragon

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    Being honest, I'm looking forward to seeing potentially vehicles losing the bead of their tire due to significant side loading or pressure. Or some dork over pressurizes the tire and it blows the heck out over a bump. Im looking forward to future updates on here regarding every little improvement. I wanna see this and get an idea of exactly how slow these sorts of things take to develop
    --- Post updated ---
    I hope to see tire chains eventually. That would be interesting and I think they should test for that too. I want to hear and see tire chains being tested on tires and how the wear affects that as well. If they're really going all the way with that I've got to see this.
     
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  13. FPSKoda4

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    If a new tire model appears it would drastically change how they adapt to terrain and grip onto surfaces. Currently when you're going slow you can see how the tire is bobbing the vehicle up and down or just rock crawling which makes the tires constantly slip slip slip between the edges of the tire faces. If it had a higher res or a different model it would handle a lot better overall. right?

    However i don't see how the tires smooth out in a recent comment. In slowmo at 100 km/h the tire has a air gap between each edge of the tire and often times still bumping ever so slightly. When you turn one of the wheels will be going faster while the other side is going slower, making them desync and start skipping or make the vehicle shake (gets noticeable with larger wheels). Am i not seeing something in the background of how that is not negatively effecting the performance of the vehicle or is gyroscopic stabilization in consideration? (If that's the right word for this situation) I'm very curious how the current wheel model holds up and if it will ever be possible to have a smooth realistic tire with simulated treads.

    nonetheless when this drops it will definitely be my favorite game update overall as i love racing and offroading. Hope to see more updates on this topic!
     
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  14. HybridRooDragon

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    I am 100% looking forward to this and if it does what I think it's going to..... We might actually see snow chains being an option in the future.... We'll see because I'm curious now
    --- Post updated ---
    Are you like a team of like five? I'm just curious. I'm not trying to poke any fun at you. I'm being very serious right now. Like have you ever thought about hiring another person like one at a time over time? I don't know. I'm just throwing that out there. How big is your team exactly? I'm curious.
    --- Post updated ---
    If you guys need someone to Geek the freak out about the weather and how weather patterns may be simulated in the game. Im probably a good person to talk to and if I dont know. I can probably toss you at a chat or recommend a meteorologist. Weather is what I love more than cars.
     
  15. Kuube

    Kuube
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    Tires naturally spin at different speeds when u turn no? The bumpiness argument I understand tho
     
  16. Division_Devin

    Division_Devin
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    This phenomenon can be felt via FFB in higher end wheels. I feel like the devs have spent a significant amount of time tuning the FFB model to compensate for the current tire model and possibly tweaked the grip levels in the tires to also compensate for the rough model of the current tires. Tbh the only way to know for sure would be to make a "smoother" tire model and see if that makes a big enough difference (Hint, it would).

    When building racecars using vanilla parts and cars is where you really feel how bad the current tire model really is. It feels like the cars were not meant to be pushed to their absolute limits. I feel like this new in development tire model will help a lot, but the J-Beam will still probably need work.
     
  17. Turbo49>

    Turbo49>
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    Except you already can increase the number of rays in the model to make it smoother, and you then realize it doesn't really improve stuff at all
     
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  18. FPSKoda4

    FPSKoda4
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    That's what i was implying which is causing the vehicle is slip more as it's vibrating from the changes of wheel speed on each side.

    I can also see slippage upon heavy braking where it should be getting the absolute most grip as it's tippy toeing on the faces of the tire. It feels like brake failure even though the brakes are perfect but it only happens semi-rarely but annoying enough to say something and can ruin competition in races
     
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  19. HybridRooDragon

    HybridRooDragon
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    If you guys need someone to Geek the freak out about the weather and how weather patterns may be simulated in the game. Im probably a good person to talk to and if I dont know. I can probably toss you at
    Also antilock brake system is advanced enough it notices that and freaks out sometimes my car REFUSES TO SLOW DOWN at all for 500 feet AND THEN THE brakes kick in.
     
    • Agree Agree x 2
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