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# destinationAlpha

Premultiplication description for the destination texture.

```
var destinationAlpha: MPSAlphaType { get }
```

## Discussion

Color space conversion operations produce non-premultiplied data. Use this property to tag cases where premultiplied results are required. If the [`MPSAlphaType.alphaIsOne`](/documentation/MetalPerformanceShaders/MPSAlphaType/alphaIsOne) value is used, the alpha channel will be set to 1. The default value is [`MPSAlphaType.alphaIsOne`](/documentation/MetalPerformanceShaders/MPSAlphaType/alphaIsOne).

---

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