---
title: "Why can't I select the \"Polygon\" algorithm? It's greyed out!"
description: "The \"Polygon\" algorithm is available only for frameworks supporting polygon meshes, like Unity, Cocos2D-X and Defold."
canonical: "https://www.codeandweb.com/texturepacker/knowledgebase/polygon-packer-not-available"
product: "texturepacker"
source: "html"
---

# Why can't I select the "Polygon" algorithm? It's greyed out!

The "Polygon" algorithm is only available for certain data formats, as not all frameworks support the import of polygon meshes.

Currently, polygon packing is supported for the following frameworks / data formats:

*   Unity Texture2D
*   Cocos2D-X
*   Defold
*   JSON (Hash)
*   JSON (Array)

## Structured data

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