Wheel collider rotatin pivot problem when wheeling a bike

[Edy]

@hitzaum

It’s so easy to solve—either Unity should update the Wheel Collider to use multiple raycasts, a sphere cast, or a raycast based on the local GameObject.

Unfortunately, this is extremely unlikely to happen. The WheelCollider is not implemented in Unity, but in PhysX 4, the underlying physics engine in Unity.

PhysX wheels implement a feature to provide contacts along their shape (Suspension Sweeps), but I don’t think this would be ever exposed in Unity. It has been on top of my Top Three Physics Requests for Unity for 4 years now:

My top-three physics feature requests

Updated: September 2021 This is mostly for @yant , but I decided to post these requests here for public discussion. 1. WheelCollider: Implement PxVehicleSuspensionSweeps This provides contacts beyond the single raycast, allowing the wheels to smoothly climb obstacles. This feature may be configured by just two parameters (reject angles) that could be configured in Unity in the same way as WheelCollider.ConfigureVehicleSubsteps does with the vehicle substeps. https://twitter.com/PierreTerdim…

As others, I’ve abandoned the WheelCollider and implemented my own multi-contact wheel collision model: (loud sounds warning!) https://www.youtube.com/watch?v=E7Mx72ZJT_o