---
title: boundingBoxBuffer
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4accelerationstructureboundingboxgeometrydescriptor/boundingboxbuffer
---

# boundingBoxBuffer

References a buffer containing bounding box data in MTLAxisAlignedBoundingBoxes format.

## Declaration

```swift
var boundingBoxBuffer: MTL4BufferRange { get set }
```

## Discussion

Discussion You are responsible for ensuring the buffer address of the range is not zero.