---
title: writeMask
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/lowlevelrenderpipelinestate/descriptor/writemask
---

# writeMask

The color channels written to the output attachment.

## Declaration

```swift
var writeMask: MTLColorWriteMask { get set }
```

## Discussion

Discussion Defaults to .all. Set this to a subset of channels to write only specific components.

## See Also

### Configuring the pipeline

- [mesh](realitykit/lowlevelrenderpipelinestate/descriptor/mesh.md)
- [renderTargets](realitykit/lowlevelrenderpipelinestate/descriptor/rendertargets.md)
- [blending](realitykit/lowlevelrenderpipelinestate/descriptor/blending-swift.property.md)
- [LowLevelRenderPipelineState.Descriptor.Blending](realitykit/lowlevelrenderpipelinestate/descriptor/blending-swift.struct.md)