> For the complete documentation index, see [llms.txt](https://docs.flatredball.com/gum/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flatredball.com/gum/gum-tool/gum-elements/nineslice/texture-left.md).

# Texture Left

## Introduction

The Texture Left variable controls the left pixel of the source rectangle used to draw the NineSlice. Texture Left is only available if the NineSlice uses a Texture Address of Custom or Dimension Based.

The following image shows a NineSlice with a Texture Left value of 96.

<figure><img src="/files/EID6xpm81bPitGCVPe3N" alt=""><figcaption><p>NineSlice with Texture Left set to 96</p></figcaption></figure>

Texture Left controls the left side of the region that the NineSlice displays on its source file. In this case, the left-edge of the source rectangle is 96 pixels from the left edge of the entire file.

<figure><img src="/files/lAGzgLBBHGQgxuP0R7W5" alt=""><figcaption><p>Texture Left set to 96 pixels in the Texture Coordinates tab</p></figcaption></figure>


---

# 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://docs.flatredball.com/gum/gum-tool/gum-elements/nineslice/texture-left.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.