Inconsistent friction when comparing boxes rotating clockwise vs counterclockwise

Unity: PhysX

Won't Fix

2023.1.X

2022.2.X

2022.1.X

2021.3.X

2020.3.X

Third Party Issue

2023.2.X

This is a complex issue inside PhysX (even with the latest PhysX 5). Nvidia is aware and looking into it but for now here are a few workarounds: - Do not use the Patch Friction type, it only picks 2 out of 4 contacts and the result is never going to be symmetrical. - Use the Two-Directional Friction type. It works on all 4 of the produced contacts and has the best chance of producing a symmetrical result. - Bump us the velocity (and potentially position) iteration count to increase the convergence of the friction constraints

2022.1 has reached end of life so the issue will be fixed in a newer version.

How to reproduce:
1. Open the user's attached project
2. Open scene Scenes/SampleScene
3. Press the Play button and go to the Game view

Expected result: both GameObjects rotate symmetrically
Actual result: the Negative GameObject (left) rotates out of place

Reproducible with: 2019.4.39f1, 2020.3.34f1, 2021.3.3f1, 2022.1.1f1, 2022.2.0a13

Inconsistent friction when comparing boxes rotating clockwise vs counterclockwise

Unity: PhysX

Won't Fix

Third Party Issue

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Inconsistent friction when comparing boxes rotating clockwise vs counterclockwise

Unity: PhysX

Statuses

Won't Fix

Third Party Issue

Resolution Notes

2022.1.XWon't Fix2022.1 has reached end of life so the issue will be fixed in a newer version.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?