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Fixed in 2021.2.X

Fixed in 2020.3.X, 2021.1.X

Votes

1

Found in

2018.4

2019.4

2019.4.19f1

2020.3

2021.1

2021.2

Issue ID

1334367

Regression

No

RaycastHit2D Normal is incorrect when Physics2D.Raycast hits an EdgeCollider2D with a Rigidbody

Physics2D

-

How to reproduce:
1. Open the attached project "RaycastNormals.zip"
2. Open SampleScene
3. Enable Gizmos in the Game View
4. Click Play
5. Observe the drawn Raycast and its normal
6. Add a Rigidbody2D to the Edge Collider game object
7. Observe the drawn Raycast and its normal

Expected result: The normal does not change
Actual result: The normal points up, regardless of the edge collider rotation

Reproducible with: 2018.4.34f1, 2019.4.26f1, 2020.3.9f1, 2021.1.8f1, 2021.2.0a17

Workaround: Calculate the normals manually by using RaycastHit2D.collider.transform or use a small Edge Radius on the Edge Collider

Notes:
1. This does not reproduce with other 2D colliders

  1. Response avatar

    Resolution Note (fix version 2021.2):

    This has been fixed in Unity 2021.2.0a20 and 2021.1.11f1.

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