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	<title>Real-Time Physics Simulation Forum</title>
	
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	<updated>2015-04-30T20:55:39+00:00</updated>

	<author><name><![CDATA[Real-Time Physics Simulation Forum]]></name></author>
	<id>https://pybullet.org/Bullet/phpBB3/app.php/feed/topic/9496</id>

		<entry>
		<author><name><![CDATA[BluePrintRandom]]></name></author>
		<updated>2015-04-30T20:55:39+00:00</updated>

		<published>2015-04-30T20:55:39+00:00</published>
		<id>https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=35354#p35354</id>
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		<title type="html"><![CDATA[Re: Bullet 2.82 released: Featherstone and direct MLCP solve]]></title>

		
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Thank you for your amazing work!<p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=10520">BluePrintRandom</a> — Thu Apr 30, 2015 8:55 pm</p><hr />
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		<entry>
		<author><name><![CDATA[bullet_team]]></name></author>
		<updated>2013-10-24T03:15:06+00:00</updated>

		<published>2013-10-24T03:15:06+00:00</published>
		<id>https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=32002#p32002</id>
		<link href="https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=32002#p32002"/>
		<title type="html"><![CDATA[Bullet 2.82 released: Featherstone and direct MLCP solvers]]></title>

		
		<content type="html" xml:base="https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=32002#p32002"><![CDATA[
The new Bullet 2.82 SDK is available for download: <a href="https://code.google.com/p/bullet/downloads/list" class="postlink">https://code.google.com/p/bullet/downloads/list</a>, svn revision 2704<br><br>Some of the features include:<ul><li> <span style="color:#FF0000">Featherstone</span> Articulated btMultiBody, with two-way interaction with regular btRigidBody. See Bullet/Demos/FeatherstoneMultiBodyDemo. Thanks to Stephen Thompson for the initial Featherstone implementation, and Martin Felis and Jakub Stepien for the discussion and information.</li><li> New MLCP constraint solver interface for <span style="color:#FF0000">higher quality direct solvers.</span> Dantzig (by Russel Smith OpenDE), PATH and Projected Gauss Seidel Mixed Linear Complementarity solvers, with fallback to the original Bullet sequential impulse solver. In a nutshell, direct MLCP solvers are useful when higher quality simulation is needed, for example in robotics. The performance is less than the PGS/SI solver, but it usually convergence faster to a good solution. See src/BulletDynamics/MLCPSolvers and Bullet/Demos/ForkLiftDemo for an example.</li><li> New <span style="color:#FF0000">btFixedConstraint </span>as alternative to a btGeneric6DofConstraint with all DOFs locked. See Demos/VoronoiFractureDemo</li><li> Various bug fixes, related to force feedback and friction. Improved performance between btCompoundShape<br>using the new btCompoundCompoundCollisionAlgorithm. See the commit log at <a href="https://code.google.com/p/bullet/source/list" class="postlink">https://code.google.com/p/bullet/source/list</a></li></ul>Focus is now on merging all functionality of Bullet 2.x into Bullet 3.x. You can follow progress at <a href="https://github.com/erwincoumans/bullet3" class="postlink">https://github.com/erwincoumans/bullet3</a> or read the SIGGRAPH course notes about the GPU rigid body simulation at <a href="http://www.multithreadingandvfx.org/course_notes" class="postlink">http://www.multithreadingandvfx.org/course_notes</a><br><br>Thanks everyone for the contributions and feedback!<br><br>Enjoy,<br>Erwin<p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=10522">bullet_team</a> — Thu Oct 24, 2013 3:15 am</p><hr />
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