Problem: Terrain collisions and Vehicle.

[Anton Petrov]

Hello.

I'm writing a playable demo for an arcade offroad racing game. I'm trying to use the Bullet Library (Big Thanks to all its creators!) for the car phsics.

I used standard vehicle demo to setup my one game.

When my car falls down from a hill, one or two of its wheels sinks into the ground. It is a catastrophe, bacause it ruins all the gameplay.

Can I somehow avoid this ugly bug???

And is there any solution to avoid small jittering of the wheels when they are touching the ground? Though it is not a big problem, because I'm going to separate visible wheel from its physical representation.

[Erwin Coumans]

Changing the position of the wheel attachpoint can help. Try to move them deeper inside the chassis rigidbody/collision shape.

[Anton Petrov]

Thank you, Erwin. It works!

p.s. I have noticed a little inexactitude, a wheel with applied engine force does not rotate in the air, i.e. it rotates only if it has accumulated angular velocity while moving along the ground. I will take care of this and let you know