The car tutorial doesn't work in unity 2

Unity Engine
1

I was following along with the car tutorial in unity 2 and thought I messed up; The car was half way below the floor when I tried to run “4 Physics” under “[A] Car Control”.

I went back through to make sure I didn’t miss anything, but it looks like the finished version has the same error.

My guess is that the wheels are not colliding with the ground, but why?

2

I’m having the same problem, can anyone shed light on this?

3

I noticed 2 things that could be causing this, but couldn’t figure out a solution.

  1. The screenshots in the tutorial show a ‘Spring’ component to the ‘Wheel Material’. This section does not exist in version 2.

I tried manually creating a ‘Spring joint’ on the wheel (which requires it to have a rigid body). It sorta worked, but the wheels didn’t collide with the ground. Which leads to…

  1. It doesn’t seem like the raycast objects on the wheels ever prevent the wheel from falling through the track. If you add a rigid body to a wheel with a raycaster on it, it still falls through the floor (not sure if this is the intended behavior).

EDIT: Fyi, here is the download to the completed tutorial:

4

we are talking about wheel colliders right? Has anyone gotten them to work yet?

5

I haven’t played around much with either the raycast collider or wheel collider in 1.6 so I’m not sure if this is new behavior for version 2.0. In 2.0 it seems to behave ‘unpredictably’:

  1. I created a default plane with a mesh collider.

  2. Then I created a sphere with a ray cast collider that had a bouncy physic material.

  3. I then added a rigidbody component to the sphere.

More often than not, the sphere passed through the plane. If I moved the plane a tiny bit (.05) in ‘z’ and select ‘convex’ then sometimes the ball collided, bounced a couple of times and fell through the plane (the ball bounced a bit erratically because it started to spin, but the ray cast direction was still toward the plane).

Maybe the wheel collider is having a similar issue here? Is this normal behavior for the raycast collider? Am I missing a setting or concept?

Cheers,
Paul