# projectionDistance

> Set the linear tolerance threshold for projection.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.PhysicsModule

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

### Remarks

If the joint separates by more than this distance along its locked degrees of freedom, the solver will move the bodies to close the distance.

Setting a very small tolerance may result in simulation jitter or other artifacts.

Sometimes it is not possible to project (for example when the joints form a cycle).