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# CollisionComponent.Mode.default

A default collision object.

```
case `default`
```

## Discussion

When two objects of this type collide, RealityKit computes the full
contact details (contact points, normal vectors, penetration depths,
and so on) and stores them in the contact set.

> Note: Collisions will fall through and do not collide by default, to
> enable colliding see the ``doc://com.apple.RealityKit/documentation/RealityKit/CollisionComponent/Mode-swift.enum/colliding`` mode.

---

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