---
title: alphaToOneState
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4meshrenderpipelinedescriptor/alphatoonestate
---

# alphaToOneState

Indicates whether the pipeline forces alpha channel values of color attachments to the largest representable value.

## Declaration

```swift
var alphaToOneState: MTL4AlphaToOneState { get set }
```