# bounciness

> Determines the size of the bounce when the joint hits it's limit. Also known as restitution.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

```csharp
public float bounciness { get; set; }
```

### Remarks

The **size** of the new velocity after the bounce will be determined as:

`newVelocity = currentVelocity * bounciness`.

When opening an old project using the deprecated `maxBounce` and `minBounce` the new `bounciness` will be chosen as the maximum `maxBounce` and `minBounce`.

Additional Resources: [\_bounceMinVelocity](/engine/6000.7/script-reference/unityengine/jointlimits/bounceminvelocity.md)