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<h3 class="section">3.4 Global environment</h3>
<p>An optional global environment block provides a few ways to affect the
entire scene. The block must appear as the last text in the
<code>sketch</code> input file. It may include definitions, but note
that previous definitions at the top level (not nested inside
blocks) are also available.
<p class="noindent"><strong>Syntax:</strong>
<a name="index-global-373"></a>
<pre class="example"> global { <var>environment_settings</var> }
</pre>
<p class="noindent">The contents of <var>environment_settings</var> are discussed in the
sections that follow.
<ul class="menu">
<li><a accesskey="1" href="Global-options.html#Global-options">Global options</a>: Attributes of the entire drawing.
<li><a accesskey="2" href="Camera.html#Camera">Camera</a>: A final camera transformation of the scene.
<li><a accesskey="3" href="Picture-box.html#Picture-box">Picture box</a>: Setting the bounding box and 2d clipping.
<li><a accesskey="4" href="Frame.html#Frame">Frame</a>: Adding a box around the drawing.
<li><a accesskey="5" href="Language.html#Language">Language</a>: Setting the output language.
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