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By Design
Votes
0
Found in
2021.3.31f1
Issue ID
UUM-54608
Regression
Yes
NavMesh is not generated on Physics Triggers
How to reproduce:
1. Download and open the attached project
2. Enter Play Mode
3. Open scene view
4. Observe the mesh with a trigger
Expected: NavMesh is generated on trigger colliders
Actual: NavMesh is not generated on trigger colliders
Reproducible with: 2021.3.13f1, 2021.3.31f1, 2022.3.12f1, 2023.1.18f1, 2023.2.0b16, 2023.3.0a11
Not reproducible with: 2021.3.12f1
Note: This is directly related to UUM-10109 - the fix directly caused this behaviour
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Resolution Note:
This was an intentional change that we made to prevent trigger boxes from being included in NavMesh generation because agents and physics bodies can move through trigger boxes and aren't blocked by them.
As a workaround, one can use a collider masked on specific layers. The performance overhead of that is expected to be minimal.