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<title>Easings (The Chickadee Game Toolkit)</title>
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<p>
Next: <a href="Bezier-Curves.html#Bezier-Curves" accesskey="n" rel="next">Bezier Curves</a>, Previous: <a href="Quaternions.html#Quaternions" accesskey="p" rel="prev">Quaternions</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="Easings-1"></a>
<h4 class="subsection">2.2.7 Easings</h4>
<p>Easing functions are essential for animation. Each easing function
provides a different path to go from an initial value to a final
value. These functions make an excellent companion to the
<code>tween</code> procedure (see <a href="Tweening.html#Tweening">Tweening</a>). Experiment with them to
figure out which function makes an animation look the best.
</p>
<p>Pro tip: <code>smoothstep</code> provides nice results most of the time and
creates smoother animation than using <code>linear</code>.
</p>
<dl>
<dt><a name="index-linear"></a>Procedure: <strong>linear</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-smoothstep"></a>Procedure: <strong>smoothstep</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dquad"></a>Procedure: <strong>ease-in-quad</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002dout_002dquad"></a>Procedure: <strong>ease-out-quad</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dout_002dquad"></a>Procedure: <strong>ease-in-out-quad</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dcubic"></a>Procedure: <strong>ease-in-cubic</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002dout_002dcubic"></a>Procedure: <strong>ease-out-cubic</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dout_002dcubic"></a>Procedure: <strong>ease-in-out-cubic</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dquart"></a>Procedure: <strong>ease-in-quart</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002dout_002dquart"></a>Procedure: <strong>ease-out-quart</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dout_002dquart"></a>Procedure: <strong>ease-in-out-quart</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dquint"></a>Procedure: <strong>ease-in-quint</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002dout_002dquint"></a>Procedure: <strong>ease-out-quint</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dout_002dquint"></a>Procedure: <strong>ease-in-out-quint</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dsine"></a>Procedure: <strong>ease-in-sine</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002dout_002dsine"></a>Procedure: <strong>ease-out-sine</strong> <em>t</em></dt>
</dl>
<dl>
<dt><a name="index-ease_002din_002dout_002dsine"></a>Procedure: <strong>ease-in-out-sine</strong> <em>t</em></dt>
</dl>
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