> For the complete documentation index, see [llms.txt](https://support.skylum.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.skylum.com/editing-tools/masking-options/creating-a-layer-mask.md).

# Creating a Layer Mask

{% @arcade/embed flowId="1f2mVpbAglBKKXRTRDiH" url="<https://app.arcade.software/share/1f2mVpbAglBKKXRTRDiH>" %}

If you’d like to use a mask on a layer, the first step is to add one. This approach is most useful when you want to mask parts of an image layer globally or blend several filters at once. This mask can be edited using the Brush, Linear Gradient, Radial Gradient, or MaskAI tools.

To add a mask:

1. Open a photo in Luminar Neo.
2. Select the desired layer. By default, layers have no mask.
3. Click the Masking tab in the Layers Properties panel.
4. Choose one of the four mask types
   * Brush
   * Linear Gradient
   * Radial Gradient
   * MaskAI

These tools offer several controls, we’ll explore them next.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://support.skylum.com/editing-tools/masking-options/creating-a-layer-mask.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
