# Random

> 4 random numbers. The first 3 are deterministic and assigned once when each particle is born, but the 4th value will change during the lifetime of the particle.

## Definition

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

> **Warning:**
>
> **Deprecated.** ParticleSystemVertexStreams is deprecated. Please use ParticleSystemVertexStream instead.

```csharp
Random = 8192
```