---
title: MPSFunctions_AABB_SDR
framework: metalperformanceshaders
role: symbol
role_heading: Global Variable
path: metalperformanceshaders/mpsfunctions_aabb_sdr
---

# MPSFunctions_AABB_SDR

## Declaration

```swift
let MPSFunctions_AABB_SDR: MPSFunctions_AABB
```

## Discussion

Discussion Axis aligned bounding box for color gamut