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Won't Fix
Votes
2
Found in
2017.4.0f1
2018.3.0a1
2018.3.8f1
2019.1.0a1
2019.2.0a1
Issue ID
1143386
Regression
No
CapsuleCastAll doesn't hit the Mesh Collider it starts in if the Mesh Collider is Non-Convex
How to reproduce:
1. Open submitted project (CapsuleCast)
2. Enter Play Mode and see the Console window
Expected result: Cast (before move) returns 1
Actual result: Cast (before move) returns 0
Reproducible with: 2017.4.25f1, 2018.3.12f1, 2019.1.0f1, 2019.2.0a11
Notes:
Works as expected when Plane Mesh Collider is Convex
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Resolution Note:
The issue arises from a very small imprecision when calculating the dot product between the capsule and the Mesh's triangle that should be hit. This causes the triangle to be treated as a backface.
Workarounds:
- Turn on the "Queries Hit Backfaces" option in the Physics settings
- Set the plane's world Y coordinate to a non-zero number