---
title: "WebGLTransformFeedback | JavaScript maps SDK"
description: "Documentation for MapTiler SDK"
---

> For AI agents: a documentation index is available at [/llms.txt](https://docs.maptiler.com/llms.txt). Markdown versions of all pages are available by appending .md to any URL.

# Interface WebGLTransformFeedback

The **`WebGLTransformFeedback`** interface is part of the WebGL 2 API and enables transform feedback, which is the process of capturing primitives generated by vertex processing. It allows to preserve the post-transform rendering state of an object and resubmit this data multiple times.

[MDN Reference](https://developer.mozilla.org/docs/Web/API/WebGLTransformFeedback)