# radiusSpeedMultiplier

> A multiplier of the radius speed of the particle emission shape.

## Definition

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

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

### Remarks

Changing this property is more efficient than accessing the entire curve, if you only want to change the overall speed multiplier.

Additional Resources: [\_radiusMode](/engine/6000.7/script-reference/unityengine/particlesystem/shapemodule/radiusmode.md), [ParticleSystemShapeMultiModeValue](/engine/6000.7/script-reference/unityengine/particlesystemshapemultimodevalue.md), [\_shapeType](/engine/6000.7/script-reference/unityengine/particlesystem/shapemodule/shapetype.md)