---
title: frameRateVariation
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/particleemittercomponent/particleemitter/imagesequence-swift.struct/frameratevariation
---

# frameRateVariation

Defines a plus/minus range (in frames per second) from which a value is randomly selected to offset frameRate.

## Declaration

```swift
var frameRateVariation: Float
```