---
title: "convert(_:from:to:)"
framework: realitykit
role: symbol
role_heading: Instance Method
path: "realitykit/realitycoordinatespaceconverting/convert(_:from:to:)-3fumk"
---

# convert(_:from:to:)

Converts a Rect3D from a defined SwiftUI coordinate space to a BoundingBox in a RealityKit coordinate space.

## Declaration

```swift
func convert(_ rect: Rect3D, from space: some CoordinateSpaceProtocol, to realitySpace: some RealityCoordinateSpace) -> BoundingBox
```