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Question by RLin · Aug 01, 2015 at 09:09 PM · colliderstaticmesh colliderphysicmaterial

Mesh colliders "grab" objects

I am developing a racing game with arcade physics. All vehicles are made of box colliders that have a physics material with no bounce and no friction, and bounce/friction combine is set to minimum. All walls are made of mesh colliders. Most walls work as expected, but some of them pull the vehicle to a complete stop at the contact point, while the rest of the vehicle continues. The walls in question consistently do this, while other walls never do. Why would this happen?

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avatar image zach-r-d · Aug 01, 2015 at 09:17 PM 0
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Could you post screenshots showing the behavior, with the colliders visible?

avatar image RLin · Aug 01, 2015 at 09:29 PM 0
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alt text

50 mph crash, no problem

one.jpg (46.1 kB)
avatar image RLin · Aug 01, 2015 at 09:32 PM 0
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alt text

15 mph crash, car goes flying

two.jpg (47.9 kB)
avatar image zach-r-d · Aug 01, 2015 at 09:45 PM 0
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Weird. Are there any settings that are different between the colliders?

avatar image RLin · Aug 01, 2015 at 09:49 PM 0
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No settings differences, both use the default physic material. One thing to note is that the first collider is just two triangles to form a rectangle; the second is 6 triangles, to form three rectangles. The second collider has a top side and a side facing away from the player.

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