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Votes
0
Found in
2017.4.0f1
2018.3.0a1
2018.3.0f2
2019.1.0a1
2019.2.0a1
2019.3.0a1
Issue ID
1114763
Regression
No
Collision bumps when crossing from one Box Collider to another
How to reproduce:
1. Open attached project "Case_1142326_collision.zip"
2. Enter Play Mode
3. Use D and A keys to move left and right
4. Move left and right on the ground
Expected result: Player never gets stuck
Actual result: Player sometimes gets stuck
Reproducible with - 2017.4.26f1, 2018.3.14f1, 2019.1.1f1, 2019.2.0a13, 2019.3.0a1
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Resolution Note:
Unfortunately this is an innate quirk of the physics engine that can't be easily fixed. It can be worked around by one of these methods:
1. Using a Sphere Collider or a Capsule Collider (or a few of them, if necessary) to avoid sharp edge collisions altogether
2. Combine the individual shapes into a single mesh
3. Reducing the Default Contact Offset to a smaller value. In the provided project it's set to 0.01 and setting it to 0.0001 nullifies any problems
Modern games that are Physics driven tend to use a combination of the above methods.