Physics Simulation Forum

 

All times are UTC




Post new topic Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Thu Mar 29, 2012 2:45 pm 
Offline

Joined: Tue Mar 27, 2012 2:31 pm
Posts: 4
I need Continuous Collision Detection Library that is Free for Commercial Use :)

I know that it’s quite difficult find one and I’m not even sure there’s any, but I hope the world is big enough to contain some Commercial Free Continuous Collision Detection Library. At least it would be nice to write here a list of possibilities how to build one. And what is the fastest way to get it or create it.

When I found something useful or interesting I write it here.

Best regards all readers,
Dalibor :wink:


Top
 Profile  
 
PostPosted: Fri Mar 30, 2012 3:46 pm 
Offline
Site Admin
User avatar

Joined: Sun Jun 26, 2005 6:43 pm
Posts: 3744
Location: California, USA
Bullet contains a continuous collision detection library, you can use it without the rigid body/soft body dynamics.


Top
 Profile  
 
PostPosted: Tue Apr 03, 2012 7:45 am 
Offline

Joined: Tue Mar 27, 2012 2:31 pm
Posts: 4
Thanks for advice Erwin.

I would like to use Bullet Collision Library, but I need fast CCD, which dynamically adjusts the required resolution. The performance is important for me, because I want to use it for simulation of robotic arm. If I understood well the CCD in Bullet Engine works just for checking between steps with constant delta time (resolution). And it must be set by something like that for selected rigid bodies:

Code:
#define CUBE_HALF_EXTENTS 0.5
btRigidBody* body = ....;
body->setCcdMotionThreshold(CUBE_HALF_EXTENTS);
body->setCcdSweptSphereRadius(0.9*CUBE_HALF_EXTENTS);

I would like to know how should be CCD used just in Bullet Collision library without the rigid body/soft body dynamics.

I found out quite interesting CCD library under BSD license: FCL - Fast Collision Library (Flexible Collision Library), url: http://www.ros.org/wiki/fcl. So I'm investigating it now.

Best regards,
Dalibor :wink:


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC


Who is online

Users browsing this forum: Google [Bot], Google Feedfetcher, hmz and 18 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group