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By Design
Votes
3
Found in
2018.3.0f2
Issue ID
1131736
Regression
No
Characters with higher Step Offset collide with objects which are above them
How to reproduce:
1. Open attached Unity project "CharacterControllerCollisionBugTest"
2. Enter the Play mode
3. Wait until Characters reach the Block
Expected result: All three Characters passes through a Block
Actual result: Second Character gets stuck, but passes through a Block. Third Character gets stuck.
Reproduced with: 2019.2.0a6, 2019.1.0b5, 2018.3.7f1, 2017.4.22f1.
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Resolution Note:
PhysX decomposes the movement vector into three components: Up, Forward, Down. A higher step offset causes the Up component to be checked higher as well, leading to behaviour like this.