# Convex Collider Fix?

**URL:** https://discussions.unity.com/t/convex-collider-fix/1711128
**Category:** Asset & Content Management
**Tags:** FBX, Question, 6.0
**Created:** [March 2, 2026, 8:28pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128 "2026-03-02T20:28:01Z")
**Posts on this page:** 8
**Page:** 1

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### Author: ![PeasantProductions](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/peasantproductions/32/944612_2.png) [@PeasantProductions](https://discussions.unity.com/u/PeasantProductions)
#### Post date: [March 2, 2026, 8:28pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/1 "2026-03-02T20:28:01Z")

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I am aware that convex mesh colliders make this [hull](https://docs.unity3d.com/6000.3/Documentation/Manual/mesh-colliders-introduction.html#concave-convex-mesh-colliders) here, but I am unsure completely on the best way to make accurate collision here. What’s the best way to deal with this?

 ![image](https://europe1.discourse-cdn.com/unity/original/4X/0/8/6/0867d6ffa3fa51480ffd75b6e1bb8e7bf7553bb1.jpeg)

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### Author: ![zulo3d](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/zulo3d/32/363590_2.png) [@zulo3d](https://discussions.unity.com/u/zulo3d)
#### Post date: [March 2, 2026, 8:40pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/2 "2026-03-02T20:40:15Z")

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You can add multiple collider components to a gameObject. So instead of a convex mesh collider you add two capsule colliders for the skids and a few box colliders to cover the other parts of the chopper.

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<div class="post-metadata">

### Author: ![PeasantProductions](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/peasantproductions/32/944612_2.png) [@PeasantProductions](https://discussions.unity.com/u/PeasantProductions)
#### Post date: [March 3, 2026, 4:28pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/3 "2026-03-03T16:28:59Z")

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That’ll have to work I suppose. Would this impact performance much having a lot of colliders following the shape?

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### Author: ![michaelhetman](https://avatars.discourse-cdn.com/v4/letter/m/b4bc9f/32.png) [@michaelhetman](https://discussions.unity.com/u/michaelhetman)
#### Post date: [March 3, 2026, 4:33pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/4 "2026-03-03T16:33:36Z")

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You could also chop up your helicopter into convex pieces, add those pieces at a child of the helicopter, remove the mesh renderer and use those as colliders

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<div class="post-metadata">

### Author: ![PeasantProductions](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/peasantproductions/32/944612_2.png) [@PeasantProductions](https://discussions.unity.com/u/PeasantProductions)
#### Post date: [March 3, 2026, 4:47pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/5 "2026-03-03T16:47:38Z")

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Yeah, I’ve thought of that - I would have to redo the whole setup with the model in the scene but it might be worth it.

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### Author: ![zulo3d](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/zulo3d/32/363590_2.png) [@zulo3d](https://discussions.unity.com/u/zulo3d)
#### Post date: [March 3, 2026, 5:04pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/6 "2026-03-03T17:04:39Z")

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> [@PeasantProductions](#):
>
> Would this impact performance much having a lot of colliders following the shape?

I’ve never tested. A convex collider will be treated as a simple box until it makes contact with something and then the physics engine will need to check every triangle of the convex collider to see which of them is in contact.

So a convex collider may be more performant for a flight sim because the aircraft is rarely touching anything while flying. While compound colliders will be more performant for a race game because the car is always touching the ground.

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<div class="post-metadata">

### Author: ![PeasantProductions](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/peasantproductions/32/944612_2.png) [@PeasantProductions](https://discussions.unity.com/u/PeasantProductions)
#### Post date: [March 3, 2026, 5:18pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/7 "2026-03-03T17:18:45Z")

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That makes sense. I appreciate your replies!

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<div class="post-metadata">

### Author: ![PeasantProductions](https://dub1.discourse-cdn.com/unity/user_avatar/discussions.unity.com/peasantproductions/32/944612_2.png) [@PeasantProductions](https://discussions.unity.com/u/PeasantProductions)
#### Post date: [March 3, 2026, 5:27pm UTC](https://discussions.unity.com/t/convex-collider-fix/1711128/8 "2026-03-03T17:27:16Z")

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It was a bit of a pain but that did work rather well.

 ![image](https://europe1.discourse-cdn.com/unity/original/4X/d/7/b/d7b3c21b7140586aec3fe692db64fd38c7a14d8a.jpeg)
