Real-Time Physics Simulation Forum 2005-12-10T02:54:48+00:00 https://pybullet.org/Bullet/phpBB3/app.php/feed/topic/73 2005-12-10T02:54:48+00:00 2005-12-10T02:54:48+00:00 https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=513#p513 <![CDATA[2d physics engines]]> http://sourceforge.net/projects/physics2d

Statistics: Posted by BioSlayer — Sat Dec 10, 2005 2:54 am

]]> 2005-08-05T08:01:44+00:00 2005-08-05T08:01:44+00:00 https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=191#p191 <![CDATA[2d physics engines]]>
You can have a look at this "2D box contact calculations" demo and source:

http://www.members.lycos.co.uk/olivierrenault/

Statistics: Posted by Guest — Fri Aug 05, 2005 8:01 am

]]> 2005-08-03T16:06:42+00:00 2005-08-03T16:06:42+00:00 https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=189#p189 <![CDATA[2d physics engines]]> a best overall approach for making a 3d physics engine. But I don't
care about 3d, I just want a 2d physics engine. I am hoping that since
the computations are greatly reduced in 2d compared to 3d, speed is
not an issue and so there is a golden way of making a 2d physics
engine. I would like such an engine to handle things such as
simultaneous collisions/multiple contact points, resting contact,
friction, and joints.

To that end I was thinking of implementing Baraff's "Fast Contact ..."
paper. But I don't know how to detect collisions. Specifically, given
two polygonal rigid bodies with constant velocity and constant angular
velocity how do I detect if they will collide. If so, I need the time
of collision and moreover I need to compute the set of contact
points. And then of course LCP is used to resolve it.

Any comments/advice about pure 2d physics in general is
appreciated. The key is 2d so I don't need sophisticated stuff to make
things fast. I'm more concerned about correctness.

Statistics: Posted by fork — Wed Aug 03, 2005 4:06 pm

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