# SetDensity(float, bool)

> Set the shape density. See _massConfiguration.

## Definition

* **Type:** Method
* **Namespace:** [Unity.U2D.Physics](/engine/6000.5/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public void SetDensity(float density, bool updateBodyMass)
```

### Parameters

**** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): The density to set.**** (\[bool]\(https\://learn.microsoft.com/dotnet/api/system.boolean)): Whether to update the body mass configuration. Not doing so is faster, especially when setting multiple shapes.