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Bumpy Wheels ?

Discussion in 'Troubleshooting: Bugs, Questions and Support' started by Jeremy_GR, May 15, 2019.

  1. Jeremy_GR

    Jeremy_GR
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    Joined:
    Feb 17, 2017
    Messages:
    44
    The other day I was playing and my van started to slowly go downhill, and I noticed that it was sort of bumping a little bit as if the road had tiny potholes on it. I decided to take a closer look and yes, the tires make weird little bumps when slowly rotating
    Video :
     
    #1 Jeremy_GR, May 15, 2019
    Last edited: May 15, 2019
  2. default0.0player

    default0.0player
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    Joined:
    Nov 30, 2018
    Messages:
    274
    Known problem:the wheels are polygons.
     
    • Informative Informative x 1
  3. Nadeox1

    Nadeox1
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    BeamNG.Support
    Staff Member

    Joined:
    Aug 5, 2012
    Messages:
    12,954
    That is how the wheels works in the game. They are approximation of a circle shape.
    Enable the 'Skeleton' view (CTRL+B - Advanced Features must be on in Options > User Interface) to view in detail the physical side.

    This is a wheel:

    They are cylinders, with around 16 sides.
    At very low speeds, you will feel the the sides of the cylinder. The effect disappears quickly at slightly higher speeds.

    Why not more sides? Why +-16 sides?
    Performance balance. The more sides, the double/triple the amount of node and beams per wheel, the more CPU performance required.
     
    • Informative Informative x 2
  4. Danny Werewolf

    Danny Werewolf
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    Mar 31, 2017
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    I think it's a good thing when I knew how the wheel collisions worked, yet never knew you could see the bumping.
     
  5. Jeremy_GR

    Jeremy_GR
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    Feb 17, 2017
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    44
    Oh that's why i'll sleep smarter today, thank you for the responses
     
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