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	<title>Real-Time Physics Simulation Forum</title>
	
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	<updated>2007-01-05T08:33:10+00:00</updated>

	<author><name><![CDATA[Real-Time Physics Simulation Forum]]></name></author>
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		<entry>
		<author><name><![CDATA[Erin Catto]]></name></author>
		<updated>2007-01-05T08:33:10+00:00</updated>

		<published>2007-01-05T08:33:10+00:00</published>
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		<title type="html"><![CDATA[Verlet vs Sequential Impulses]]></title>

		
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I've been wondering how Verlet compares with Sequential Impulses for cloth. To get started, I wrote a simple pendulum simulator. I noticed a few things:<br><br>- Split impulses are less energetic than Baumgarte. It seems that semi-implicit Euler is removing energy and Baumgarte is adding some back.<br><br>- Verlet damps faster than Split Impulses, but it does oscillate (contrary to my previous assumption).<br><br>- Verlet gets more energetic when there is some initial stretch. SI is more calm.<br><br>Grab the demo here:<br><a href="http://www.gphysics.com/files/Verlet.zip" class="postlink">http://www.gphysics.com/files/Verlet.zip</a><p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=12">Erin Catto</a> — Fri Jan 05, 2007 8:33 am</p><hr />
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