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<title>Sly: Tweens</title>
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<a name="Tweens"></a>
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<p>
Next: <a href="Quaternions.html#Quaternions" accesskey="n" rel="next">Quaternions</a>, Previous: <a href="Transforms.html#Transforms" accesskey="p" rel="prev">Transforms</a>, Up: <a href="Math.html#Math" accesskey="u" rel="up">Math</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
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<hr>
<a name="Tweens-1"></a>
<h4 class="subsection">4.2.4 Tweens</h4>
<div class="example">
<pre class="example">(use-modules (sly math tween))
</pre></div>
<p>Tweening is the process of interpolating between two key values to
create the illusion of smooth animation. There are many different
ways to alter the rate of change, or “ease”, one value to another.
</p>
<p>When tween functions are combined with <a href="Signals.html#Signals">Signals</a>, the result is
animation!
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">• <a href="Easings.html#Easings" accesskey="1">Easings</a>:</td><td> </td><td align="left" valign="top">Easing procedures.
</td></tr>
<tr><td align="left" valign="top">• <a href="Tweening.html#Tweening" accesskey="2">Tweening</a>:</td><td> </td><td align="left" valign="top">The tween procedure.
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