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Question by Chody · Jan 16, 2017 at 08:14 AM · meshmeshcollidermesh colliderconvex

Covex Mesh Collider help

I have an object that's low poly, below 30 triangles if I'm right. I want to put a mesh collider on it so its accurate. Whenever I put it on it wont collide, when I click Convex it will create a rough collider of it but it has a lot of errors lining up (not unity errors). Please help, I don't know how to get it more accurate and it would be very hard trying to put in a lot of boxes.

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avatar image SamElTerrible · Jan 16, 2017 at 01:00 PM 0
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Have you made sure that the collider is not set to trigger?

avatar image Chody · Jan 16, 2017 at 08:24 PM 0
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@SamElTerrible its not set to trigger

avatar image SamElTerrible Chody · Jan 17, 2017 at 08:59 AM 0
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Interesting. For further debugging, I'd do the following:

  1. Try giving your mesh a primitive collider (like a box or sphere) just to check if it behaves differently. If it does, then it is probably an issue of using a concave collider and you might have to stick to the convex one.

  2. Add a rigidbody to your GameObject. As I understand, collisions are calculated more accurately when the object has a rigidbody.

  3. Although obvious, make sure that the collider component box is marked on your gameobject. I.e., that the collider is active.

  4. Check your layer collision matrix under Edit --> project settings --> physics. $$anonymous$$aybe the two objects that you're trying to collide are on layers that cannot interact with each other.

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