# Sandbox.SceneModel.GetBoneVelocity

```csharp
void GetBoneVelocity(int boneIndex, out Vector3 linear, out Vector3 angular)
```

Calculates the velocity from the previous and current bone transforms.

### Parameters

- `boneIndex` (`int`)
- `out linear` (`Vector3`)
- `out angular` (`Vector3`)

Declared in [Sandbox.SceneModel](/api/Sandbox.SceneModel).
Assembly: `Sandbox.Engine`.