# emissionRate

> The rate of particle emission.

## Definition

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

> **Warning:**
>
> **Deprecated.** emissionRate property is deprecated. Use emission.rateOverTime, emission.rateOverDistance, emission.rateOverTimeMultiplier or emission.rateOverDistanceMultiplier instead.

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