an><span class="Identifier">factor</span><span class="Punctuation">:</span> <span class="Identifier">coarseFactor</span><span class="Punctuation">)</span>
<span class="Punctuation">)</span></pre></p>

<h2><a class="toc-backref" id="glsl-builtminusin-variables" href="#glsl-builtminusin-variables">GLSL Built-in Variables</a></h2><table border="1" class="docutils"><tr><th>GLSL Constant</th><th>Type</th><th>Description</th></tr>
<tr><td>gl_WorkGroupID</td><td>UVec3</td><td>ID of the current workgroup [0..gl_Num