# Sandbox.Animation.GraphBuilder.BoneMaskBlend

```csharp
Node BoneMaskBlend(Node source, Node target, Node weight)
```

Blend between two bone masks. A weight of 0 uses `source`, 1 uses `target`.

### Parameters

- `source` (`Node`)
- `target` (`Node`)
- `weight` (`Node`)

### Returns

`Node`

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