# Blender - Using Decimate Tool

## Using the Decimate Geometry tool to reduce triangle count on a skinned mesh

The mesh decimation is done algorithmically, so the final results usually are not as nice as they would be if a human artist were to reduce the geometry by hand, but it does allow you to reduce your custom avatar mesh to a triangle count supported by Sansar.

Using the Decimate Geometry tool

To use the Decimate Geometry tool while editing a model in Blender:

* Select the model and switch to Edit Mode.

<figure><img src="https://1251409636-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeFXiTZShM8YWMV94n1eV%2Fuploads%2Fgit-blob-02f03951a8467e0d9e54cc0ed83ec03eaaac7f89%2Fselect-modal-decimate-tool-01.png?alt=media" alt=""><figcaption><p>Select the model and switch to Edit Mode.</p></figcaption></figure>

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* Select **Mesh > Clean up > Decimate Geometry** from the bottom menu. A Decimate Geometry options menu appears on the left side.

<figure><img src="https://1251409636-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeFXiTZShM8YWMV94n1eV%2Fuploads%2Fgit-blob-b7dea32ad7e4324820f58be58e0850282707158b%2Fdecimate-geometry-tool-02.png?alt=media" alt=""><figcaption><p>While the model is selected and in Edit Mode, select <strong>Mesh > Clean up > Decimate Geometry</strong>.</p></figcaption></figure>

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* In the Decimate Geometry options, set **Ratio** to the percentage by which to reduce the triangle count. For example, to divide the triangle count in half, enter 0.5.

<figure><img src="https://1251409636-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FeFXiTZShM8YWMV94n1eV%2Fuploads%2Fgit-blob-c26daa2a1e509bb00f8905718ef928ffac4ee4f7%2Fdecimate-geometry-ratio-03.png?alt=media" alt=""><figcaption><p>In the Decimate Geometry options panel, set <strong>Ratio</strong> to the percentage by which you would like to reduce the mesh's triangle count. In this example, the triangle count will be reduced by 62%.</p></figcaption></figure>

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* Save the file and export as an .fbx as described in [Exporting custom avatars from Blender](https://docs.sansar.com/latest/avatar-creation/avatarresources/exporting-custom-avatars-from-blender).

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Have more questions? Join our [Discord!](https://discord.gg/sansarofficial)


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