Wheel collider goes crazy

[tired remnant]

Hi guys, I tried setting up my car.
However, whenever I hit play and the car touches the mesh collider or a box collider, it goes absolutely crazy and I cant figure out why.
heres the code:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CarController : MonoBehaviour
{
    public WheelCollider[] wheels = new WheelCollider[4];
    public float torque = 200;
    private void Start()
    {
        
    }

    private void FixedUpdate()
    {
        if (Input.GetKey(KeyCode.W))
        {
            for (int i = 0; i < wheels.Length; i++)
                wheels[i].motorTorque = torque; ;
        } else
        {
            for (int i = 0; i < wheels.Length; i++)
                wheels[i].motorTorque = 0; 
        }
    }

}

[weak lark]

use edy's vehicle physics, for example the free community edition, to get started with vehicles in unity

there you can learn how to configure wheels

[tired remnant]

any free options, i dont feel like paying 30 just for setting up the cars

[weak lark]

i think vehicle physics community edition is authored by edy and is free

there is also a car set up in the unity standard assets

[tired remnant]

I´ve been using the edy´s vehicle physics now, but the issue is still the same. As soon as the rigidbody hits the collider of the floor, it goes crazy

[weak lark]

are you using his vehicle as an example?

maybe your floor is busted

[tired remnant]

ive tried out the vehicle physics asset over different projects now and its always the same issue.

[weak lark]

hmm

are you using his vehicle as an example

i do this stuff all the time

some samples:
https://appmana.com/watch/virtualtestdrive
https://appmana.com/watch/bonneville

[tired remnant]

I've figured out that the rigidbody doesn't cause the problem

[weak lark]

why are you setting up the car from scratch?

start with the prefab

and study how it is structured

[tired remnant]

But as soon as I activate the wheelcolliders again, it sends the car flying

[weak lark]

answer this question with a simple yes or no: are you using one of his example prefabs?

i've asked you 3 times

[tired remnant]

Yes, I did and it worked fine

[weak lark]

okay

so it goes without saying that this configuration is arbitrary

you can't just figure it out

start with the sample hierarchy

one thing you absolutely cannot do is attach the wheel colliders to a real mesh

unless your mesh is perfect, you attach them to transforms that are oriented correctly

that have all the right orientations, 1-1-1 scale, symmetric positions, etc.

and you can use parent constraints to rig the art wheels to the simulation wheels

if that makes sense

[tired remnant]

I have an empty parent object for all the wheel colliders, the car is rigged and everything, each wheelcollider is assigned to an individual object, just like in every tutorial on YouTube

[weak lark]

don't use video tutorials

use the sample prefab

replace the sample prefab's mesh with yours

use its hierarchy as an example

i wouldn't be stubborn about this

sorry i can't be more helpful. it will be a totally uninteresting configuration issue

[tired remnant]

Okay, I'll look into it tomorrow

Thank you so much

[weak lark]

okay

if you have some specific issue feel free to ping me and ask

the most obvious issue i see is that your front wheel's scale is not 1-1-1, according to the inspector screeshot you shared

@tired remnant so by now you should know, with unity, you shoul dnever be using a scale that isn't 1-1-1

unless the object is strictly cosmetic, never use a non-1-1-1 scale