How to make a ring collider or torus collider?

When i make a ring or torus collider where the middle is empty and test it in gameplay, lo and behold even though the middle was empty the collider wont let things pass through.

Problem: Ring/torus colliders wont let object pass through the empty middle area.
Note:All my colliders have convex on because unity throws angry fits at me when i have it off.
Link to image

 

It's not possible to have a concave shape as a convex mesh collider, by definition. If the ring doesn't move, simply leave off convex and use it as a normal mesh collider. If the ring does move and needs a rigidbody, the only feasible solution is to have multiple primitive colliders arranged in the shape of a ring.

--Eric

 

Thanks @Eric5h5 I didnt know that

 

Hi @o0_ICE_o0 do you find solution for this problem?

 

Read what I wrote above.

--Eric

 

@Eric5h5 thank I found assets help me in my problem because I don't understand your solution thanks again for your effort.

 

Hi sorry for late but may be it helps to someone else.Have a look to this attached asset link.
https://assetstore.unity.com/packages/tools/utilities/compound-collider-generator-62611