Unity Issue Tracker - The GameObject's layer, which contains the Rigidbody, is used for "RigidBody.SweepTest" when retrieving a collider from a child GameObject with a non-collide-able layer

Active

Under Consideration for 6000.0.X, 6000.2.X, 6000.3.X, 6000.4.X

Votes

0

Found in

2021.3.47f1

2022.3.55f1

6000.0.32f1

6000.1.0a9

6000.2.0a1

6000.3.0a1

6000.4.0a1

6000.5.0a1

Issue ID

UUM-91192

Regression

No

The GameObject's layer, which contains the Rigidbody, is used for "RigidBody.SweepTest" when retrieving a collider from a child GameObject with a non-collide-able layer

-

Dec 13, 2024

How to reproduce:
1. Open the “IN-90907-SweepLayerBug.zip“ project
2. Open the “SampleScene“
3. Enter Play Mode
4. Observe the Console

Expected result: “Cube B hit? False“ is logged (“0 - 6 - 0“ log is not displayed)
Actual result: “Cube B hit? True“ and “0 - 6 - 6“ is displayed

Reproducible in: 2021.3.47f1, 2022.3.55f1, 6000.0.32f1, 6000.1.0a9

Reproduced on: Windows 11 Pro (23H2)
Not reproduced on: No other environment tested

Notes:
- The child GameObject layer is set to (6: NoCollision) where in the collision matrix the logic is set for objects to collide only between layers 0 and 6
- All parent GameObjects have their layers set to (0: Default)
- “0 - 6 - 6“ respectively is the layers of the parent GameObject, the ground GameObject, the child (collider) GameObject
- In the “SweepTest” method, the RigidBody retrieves the Collider from the child GameObject, but its layer is set as one of the parents'

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