Wrong direction normal is returned when using BoxCast if "Use Fast Midphase" is enabled on Mesh Collider

Unity: PhysX

Won't Fix

2023.3.X

2023.2.X

2022.3.X

2021.3.X

Third Party Issue

6.0.X

This is a problem in the PhysX version that is being used.

Cancelling this 2023.2 tech release issue since the support for this release has come to end of life. Cancelling this 2023.2 port case does not affect any LTS or Unity 6 Beta/Preview that remain open.

How to reproduce:
1. Open the user’s attached “BoxcastNormalsAreWrong.zip” project
2. Enter Play Mode
3. In the Scene window, observe the red normal on “LevelMesh” GameObject

Expected result: Red and Green normals are showing the same direction
Actual result: Red and Green normals are showing different directions

Reproducible with: 2021.3.34f1, 2022.3.17f1, 2023.2.6f1, 2023.3.0b3

Reproduced on: macOS 13.6.3 (Intel)
Not reproducible on: No other environment tested

Notes:

Not reproducible without “Use Fast Midphase” enabled
Not reproducible with certain “LevelMesh” GameObject rotation values
Green normal indicating the normal returned by a Raycast, and a red normal indicating the normal returned by a BoxCast

Wrong direction normal is returned when using BoxCast if "Use Fast Midphase" is enabled on Mesh Collider

Unity: PhysX

Won't Fix

Third Party Issue

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Wrong direction normal is returned when using BoxCast if "Use Fast Midphase" is enabled on Mesh Collider

Unity: PhysX

Statuses

Won't Fix

Third Party Issue

Resolution Notes

6.0.XThird Party IssueThis is a problem in the PhysX version that is being used.

2023.2.XWon't FixCancelling this 2023.2 tech release issue since the support for this release has come to end of life. Cancelling this 2023.2 port case does not affect any LTS or Unity 6 Beta/Preview that remain open.

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?