---
title: spawnVelocityFactor
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/particleemittercomponent/spawnvelocityfactor
---

# spawnVelocityFactor

How much of the parent particle’s velocity to inherit. Defaults to 1.

## Declaration

```swift
var spawnVelocityFactor: Float
```