---
layout: stdlib-reference
---

# attribute [partitioning]

## Description

Used on an hull shader entrypoint to specify the patch type used by the hull shader.

## Signature

<pre>
[<a href="partitioning.html">partitioning</a>(<a href="partitioning.html#decl-mode" class="code_param">mode</a>)]
</pre>

## Parameters

####  <a id="decl-mode"></a>mode
The patch type used by the hull shader. Valid values are "tri", "quad" and "isoline".