---
title: velocityIterations
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/physicssimulationcomponent/solveriterations-swift.struct/velocityiterations
---

# velocityIterations

The number of velocity iterations the solver performs.

## Declaration

```swift
var velocityIterations: Int
```

## Discussion

Discussion Use a value in the inclusive range [1, 255]. The default value is 1.