1. Trouble with the game?
    Try the troubleshooter!

    Dismiss Notice
  2. Issues with the game?
    Check the Known Issues list before reporting!

    Dismiss Notice
  3. Before reporting issues or bugs, please check the up-to-date Bug Reporting Thread for the current version.
    0.35 Bug Reporting thread
    Solutions and more information may already be available.

Car changes his turn direction in the air

Discussion in 'Troubleshooting: Bugs, Questions and Support' started by element, Aug 8, 2013.

  1. element

    element
    Expand Collapse

    Joined:
    Aug 4, 2013
    Messages:
    5
    when you drive inclined to a ramp, then the car is always turning in the air back to his normal position (when you have enough air time) and want to land on the tires.

    It just looks not realistic when your car changes his turn direction in the air.

    i hope you can understand what i mean.

    greetings from germany :eek:
     
  2. Pyroxyde

    Pyroxyde
    Expand Collapse

    Joined:
    Nov 13, 2012
    Messages:
    58
    I have noticed that too, but only on very, very, very long or high jump.

    I think this is because the engine do consider the weight repartition (which is mainly at the bottom front, except for the Bolide) and maybe the air friction, which will make the car rotate while in air.

    So, it may be totally normal, not so unrealistic.
     
  3. element

    element
    Expand Collapse

    Joined:
    Aug 4, 2013
    Messages:
    5
    it dont rotate forward or backwards.

    it rotate to the right then to the left (or from left to right)

    i dont think it is because of the air friction, i dont think that this game is so realistic to pay attention to that.


    (imported from here)
     
    #3 element, Aug 8, 2013
    Last edited: Aug 8, 2013
  4. iRec42

    iRec42
    Expand Collapse

    Joined:
    Aug 7, 2013
    Messages:
    43

    Heavy things don't fall faster, so the wight doesn't matter. Normaly cars are turning to the front when they drive over a ramp because the front leaves the ramp at first. So the turning of the car might be unrealistic.
     
  5. pfannkuchen_gesicht

    pfannkuchen_gesicht
    Expand Collapse

    Joined:
    Aug 5, 2012
    Messages:
    34
    in a world with air friction heavy things fall faster.(depends more on the surface area and shape though)
     
  6. pulley999

    pulley999
    Expand Collapse

    Joined:
    Jan 21, 2013
    Messages:
    824
    I read somewhere that aerodynamics play a role in Beam. Let me demonstrate with a pictograph.

    Here we see the air pressure wrapping around the car.
    Code:
    ^^      /`-_     ^
    ^^     /    `-_  ^
    ^     /        / ^
    ^    /        / ^^
    ^   /        / ^^^
    ^  /        / ^^^^
    ^ /        / ^^^^^
    ^/        / ^^^^^^
    ^ `-_    / ^^^^^^^
    ^^^  `-_/ ^^^^^^^^
    ^^^^^^   ^^^^^^^^^
    ^^^^^^^^^^^^^^^^^^
    
    Because the pressure on the side going into the wind is higher than the one on the other side, the pressure difference makes the car want to point like this:
    Code:
    ^^^^         ^^^^^
    ^^^  _______  ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ |       | ^^^^
    ^^^ L-------J ^^^^
    ^^^^^^^^^^^^^^^^^^
    
    so that the pressure on both sides is equal. Make sense?

    Basically, after the inertia from the initial spin from the ramp bleeds off due to air resistance, the differences in air pressure around the car make it want to point straight again.


    little edit.

    Found a quote from tdev here.

     
    #6 pulley999, Aug 8, 2013
    Last edited: Aug 9, 2013
  7. dkutch

    dkutch
    Expand Collapse

    Joined:
    Mar 24, 2013
    Messages:
    818
    The air is dependent on the shape of the submesh, yes.

    In all honesty, a real car doesn't fly through the air perfect every time, does it? Wind is also able to be applied to maps, so I'm sure that has something to do with it.
     
  8. estama

    estama
    Expand Collapse
    Developer
    BeamNG Team

    Joined:
    Aug 7, 2012
    Messages:
    268
    When a vehicle becomes airborne, there are quite a number of physical effects going on.

    One of the most important is the gyroscopic effects from the wheels. Depending on if you are turning the wheels, not applying any gas at all, speeding up, or braking the wheels, the gyroscopic effects will affect the vehicle in different ways.

    Right now, we have a physics deficiency concerning the "speeding up" part, where we do not fully simulate the interplay between the wheels and the engine (it is in the todo list to be fixed). But i don't think that this should affect too much the airborne behavior.

    Aerodynamics (which other people have talked about too) is another thing that affects airborne behaviour. We indeed simulate vehicle aerodynamics (a car with wings would glide), and they can greatly affect airborne behaviour.

    Hope i have cleared some things :) .
     
    #8 estama, Aug 9, 2013
    Last edited: Aug 9, 2013
  9. Deewad

    Deewad
    Expand Collapse

    Joined:
    Aug 5, 2013
    Messages:
    240
    Quick someone model a car with wings!
     
  10. dkutch

    dkutch
    Expand Collapse

    Joined:
    Mar 24, 2013
    Messages:
    818
    A car essentially is a wing.


    Thank you estama.
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice