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Fixed in 2020.1.X
Fixed in 2019.3.X
Votes
1
Found in
2019.1.0a12
2019.2.0a1
2019.2.0f1
2019.3.0a1
Issue ID
1174546
Regression
No
OverlapCollider() registers an overlap only at specific points when a CompositeCollider2D with Outlines Geometry is used
How to reproduce:
1. Open the "Main" Scene in the attached "case_1174546-Composite_Collider_Bug" project
2. Enter Playmode
3. Open the Scene Window
4. Drag the Gray box to make its collider overlap completely with a green box collider
Expected results: Gray boxes that have their colliders overlap with green box colliders at any point become red
Actual results: Only gray boxes with colliders that overlap with the left edge of green box collider become red
Reproducible with: 2019.1.14f1, 2019.2.1f1, 2019.3.0a12
Additional notes:
1. Such an issue occurs only when Outline Geometry is set. Setting the Geometry to Polygons fixes the problem, but it is not a solution when a collision needs to be calculated outside the GameObject visual.
2. Project in versions before 2019.1.0a12 could not be compiled due to missing references to asmdef files.
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Resolution Note (fix version 2020.1):
Internal overlap AABB was being calculated incorrectly. Also the edge-radius wasn't being taken into account.
Resolution Note (fix version 2019.3):
Internal overlap AABB was being calculated incorrectly. Also the edge-radius wasn't being taken into account.