# GetBoneDefaultHierarchyMass(int)

> Gets the bone hierarchy mass.

## Definition

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

```csharp
public static float GetBoneDefaultHierarchyMass(int i)
```

### Parameters

**** (\[int]\(https\://learn.microsoft.com/dotnet/api/system.int32)): The humanoid bone index.

### Returns

| Type                                                          | Description              |
| ------------------------------------------------------------- | ------------------------ |
| [float](https://learn.microsoft.com/dotnet/api/system.single) | The bone hierarchy mass. |

### Remarks

The default bone mass is used to compute the mass center. The default bone mass is an approximation based on the weight of a human with normal proportions.

Additional Resources: [\_bodyPosition](/engine/6000.7/script-reference/unityengine/animator/bodyposition.md), [\_bodyPosition](/engine/6000.7/script-reference/unityengine/animations/animationhumanstream/bodyposition.md), [\_bodyLocalPosition](/engine/6000.7/script-reference/unityengine/animations/animationhumanstream/bodylocalposition.md)