---
title: empty
framework: realitykit
role: symbol
role_heading: Type Property
path: realitykit/boundingbox/empty
---

# empty

An empty bounding box.

## Declaration

```swift
static let empty: BoundingBox
```

## Discussion

Discussion An empty bounding box is defined with min set to positive infinity and max set to negative infinity. note: An empty bounding box where min is greater than max is different from a bounding box of size 0, where min  is equal to max. The former defines empty space without a position. The latter describes an object of size 0 at a certain position in space.