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Changing levels of tyre (tire for those not using the Queen's english) grip

Discussion in 'General Discussion' started by spoonalious, Aug 5, 2013.

  1. spoonalious

    spoonalious
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    Joined:
    Aug 4, 2013
    Messages:
    16
    Hi,

    Does anyone know if changing the friction levels is possible? Whilst I have no doubt that the levels made by the tyres now is physically correct, I wouldn't mind setting the supercars tyre grip to something great just to make a weapon of a track car.

    :confused:
     
  2. gabester

    gabester
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    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    Open the wheels .jbeam files (front and rear) and find the "frictionCoef" value and increase it :)
     
  3. ast5515

    ast5515
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    Aug 4, 2013
    Messages:
    220
    I tried to make the Bolide easier to drive, but no matter how I set it in super_wheels_R/F, nothing changes. I increased it until 3000. And by this I made all skid marks disappear. But the wheel is still spinning, slipping.
     
  4. Tha Smit

    Tha Smit
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    Aug 4, 2013
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    48
    HMMMM, you may be onto something here...
     
  5. Zeblote

    Zeblote
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    Aug 5, 2013
    Messages:
    18
    You might be changing the wrong one. Be sure to change this friction:


    {"super_wheel_F": {
    "information":{
    "authors":"gabester",
    "name":"Civetta Bolide Front Wheels",
    }
    "slotType" : "super_wheel_F",
    "selfCollisionThickness":0.02,
    "remoteCollisionThickness":0.06,
    "scalebeamSpring":0.8,
    "scalebeamDamp":0.86,
    "scalebeamDeform":0.56,
    "scalebeamStrength":0.89,
    "scalenodeWeight":1.1,
    "flexbodies": [
    ["mesh", "[group]:", "nonFlexMaterials"],
    //wheels
    ["super_wheel_FR", ["wheel_FR","wheelhub_a_FR","wheelhub_b_FR"], ["super_wheel","super"]],
    ["super_wheel_FL", ["wheel_FL","wheelhub_a_FL","wheelhub_b_FL"], ["super_wheel","super"]],
    ],
    "nodes": [
    ["id", "posX", "posY", "posZ"],
    //front wheel
    {"nodeWeight":3.6},
    {"selfCollision":false},
    {"collision":true}
    {"frictionCoef":0.7},
    {"nodeMaterial":"|NM_METAL"},
    {"group":"wheelhub_a_FR"},
    ["fw1r",-0.62,-1.28,0.34],
    {"group":"wheelhub_b_FR"},
    ["fw1rr",-0.87,-1.28,0.34],
    {"group":"wheelhub_a_FL"},
    ["fw1l",0.62,-1.28,0.34],
    {"group":"wheelhub_b_FL"},
    ["fw1ll",0.87,-1.28,0.34],
    {"group":""},
    ],
    "beams": [
    ["id1:", "id2:"],
    {"beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
    {"beamSpring":9501000,"beamDamp":180,"beamDeform":100000,"beamStrength":"FLT_MAX"},
    //front wheel
    ["fw1r","fw1rr"],
    ["fw1l","fw1ll"],

    {"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
    ],
    "hubWheels": [
    ["name","group","node1:","node2:","nodeS","nodeArm:","wheelDir"],
    {"enableTireSideSupportBeams":true},

    //general settings
    {"radius":0.32},
    {"hubRadius":0.20},
    {"wheelOffset":-0.05},
    {"hubWidth":0.225},
    {"tireWidth":0.215},
    {"numRays":12},

    //hub options
    {"hubBeamSpring":1601000, "hubBeamDamp":14},
    {"beamSpring":1601000, "beamDamp":14},
    {"hubBeamDeform":90000, "hubBeamStrength":140000},
    {"beamDeform":180000,"beamStrength":360000},
    {"hubNodeWeight":0.41},
    {"hubNodeMaterial":"|NM_METAL"},
    {"hubFrictionCoef":0.7},

    //tire options
    {"wheelTreadBeamSpring":321000,"wheelTreadBeamDamp":70,"wheelTreadBeamDeform":55000,"wheelTreadBeamStrength":55000},
    {"wheelPeripheryBeamSpring":321000,"wheelPeripheryBeamDamp":70,"wheelPeripheryBeamDeform":55000,"wheelPeripheryBeamStrength":55000},
    {"springExpansion":1601000, "dampExpansion":14},
    {"nodeWeight":0.41},
    {"nodeMaterial":"|NM_RUBBER"},
    {"frictionCoef":3.25},

    //
    {"pressurePSI":30},
    {"maxPressurePSI":1400},
    {"reinforcementPressurePSI":30},
    {"pressureSpring":2001000},
    {"reinforcementPressureSpring":160000},
    {"pressureDamp":70},
    {"reinforcementPressureDamp":70},

    //front
    {"selfCollision":false}
    {"collision":true}
    ["FR", "wheel_FR", "fw1rr", "fw1r", 9999, "fa4r", 1],
    ["FL", "wheel_FL", "fw1ll", "fw1l", 9999, "fa4l", -1],
    {"propulsed":0},
    ],
    "triangles": [
    ["id1:","id2:","id3:"],
    ],
    }
    }
     
  6. Olaf16

    Olaf16
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    Aug 4, 2013
    Messages:
    41
    Interesting... Going to test it out.... :D
     
  7. spoonalious

    spoonalious
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    Aug 4, 2013
    Messages:
    16
    Is there a way to convert a RWD or FWD vehicle to AWD/4WD?
     
  8. badya122

    badya122
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    Joined:
    Aug 25, 2013
    Messages:
    3
    Hi guys, I managed to change the friction coefficient of the tires, but after I launched the game, instead of tire skid marks I have huge orange squares that say "no material". Does anybody have an idea how to fix this? I change the coef back to what is was normally, but the problem persisted...
     
  9. moosedks

    moosedks
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    Joined:
    Nov 4, 2012
    Messages:
    1,112
    does it still happen after you restart the game? have you updated to the current version yet?
     
  10. badya122

    badya122
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    Joined:
    Aug 25, 2013
    Messages:
    3
    Updating now, though I just got the game a couple of days ago. I restarted it, problem was still there. I'll let you know what I'm done updating :D
     
  11. SleepyPickup

    SleepyPickup
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    Joined:
    Aug 22, 2013
    Messages:
    441
    I'm sorry if this is a thread hijack, but I feel it's related...

    Has the the tire 'max rotation speed' been lowered? I used to be able to get to 500mph+ no problem, but now I have stability issues at a much lower MPH (455).


    (imported from here)via Imgflip GIF Maker

    I would love to know how to increase the top speed of a tire :)
     
  12. badya122

    badya122
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    Joined:
    Aug 25, 2013
    Messages:
    3
    With the new update there are no more orange square or any other shapes there :) And the game seems way more stable and has only crashed once :)
     
  13. gabester

    gabester
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    Vehicle Director
    BeamNG Team

    Joined:
    Jun 6, 2012
    Messages:
    2,653
    There is no "max rotation speed." We made some changes to the tires and they perform as expected with reasonable speeds. I don't think real stock truck tires can go 400-500 mph ;) I'm not really sure what you could do to make it more stable at high speeds. Experiment with the values (there are a lot of them).
     
  14. SleepyPickup

    SleepyPickup
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    Joined:
    Aug 22, 2013
    Messages:
    441
    Nevermind, haha you edit your posts before I click reply.

    Thanks, I will experiment.
     
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