# Sandbox.CameraEffectSystem.ScreenShake.Evaluate

```csharp
void Evaluate(float scale, ref Vector3 position, ref Angles angles, ref float fieldOfView)
```

### Parameters

- `scale` (`float`)
- `ref position` (`Vector3`)
- `ref angles` (`Angles`)
- `ref fieldOfView` (`float`)

Declared in [Sandbox.CameraEffectSystem.ScreenShake](/api/Sandbox.CameraEffectSystem.ScreenShake).
Assembly: `Sandbox.Engine`.