Search found 52 matches

by Yann
Fri Apr 18, 2014 12:45 pm
Forum: General Bullet Physics Support and Feedback
Topic: softbody for clothing simulation
Replies: 1
Views: 2338

Re: softbody for clothing simulation

Here a few details on the hybrid system: http://physxinfo.com/wiki/APEX_Clothing
Quite more details in the Apex documentation
by Yann
Fri Apr 18, 2014 12:44 pm
Forum: General Bullet Physics Support and Feedback
Topic: softbody for clothing simulation
Replies: 1
Views: 2338

softbody for clothing simulation

Hello, I tried to use softBody simulation of Bullet to make clothing simulation but I'm quite unhappy with the results: it works (somehow) for simple cloth simulation like a cape, but it does not gives any good result for something more complex like a full dress with collisions on legs with a walkin...
by Yann
Fri Feb 21, 2014 9:15 am
Forum: General Bullet Physics Support and Feedback
Topic: using soft body for clothing simulation
Replies: 4
Views: 4357

Re: using soft body for clothing simulation

Well, Dynamica/Maya also integrates bullet softbodies, but I didn't found any nice clothing simulation for any of them...
Any link to some video would be appreciated ;)
by Yann
Fri Feb 21, 2014 8:46 am
Forum: General Bullet Physics Support and Feedback
Topic: using soft body for clothing simulation
Replies: 4
Views: 4357

Re: using soft body for clothing simulation

Thx for your answer ;) Like you, I tend to have better results with bigger margin... but it's still not precise/stable enough, and it's not really satisfying neither.... I ran into some videos from Modo, which seems to be using bullet, so I also tried using A LOT of clusters, low damping... Well, lo...
by Yann
Mon Feb 17, 2014 9:44 am
Forum: General Bullet Physics Support and Feedback
Topic: using soft body for clothing simulation
Replies: 4
Views: 4357

using soft body for clothing simulation

Hi everyone, I'm trying to use bullet soft bodies to simulate cloth in our software. The problem is that even if I manage to make 'simple' usage like these shown in the bullet samples, I never manage to get a stable simulation with more complex usages. To make it simple, my test is to simulate a ski...
by Yann
Thu Aug 09, 2012 3:48 pm
Forum: General Bullet Physics Support and Feedback
Topic: Multithreaded bullet + moving a ghostobject = WTF
Replies: 4
Views: 3228

Re: Multithreaded bullet + moving a ghostobject = WTF

What is your platform ?
In my own experience, Bullet multithread does not seems to work properly on windows 64bit platforms...
by Yann
Thu Aug 09, 2012 3:34 pm
Forum: Applications, Games, Demos or Movies using Bullet
Topic: Golaem Crowd for Maya, using Bullet physics ragdolls
Replies: 0
Views: 4912

Golaem Crowd for Maya, using Bullet physics ragdolls

Hello everybody, Here is a brief overview of what I made at Golaem with the Bullet Physics SDK: http://www.golaem.com/sites/default/files/images/screenshots/PhysicsEngine.jpg A video showing it in action can be seen here: http://youtu.be/fKo-AsAvySk In short, the soft is a crowd simulation software ...
by Yann
Fri May 25, 2012 9:34 am
Forum: General Bullet Physics Support and Feedback
Topic: Non-SPU multithreaded collision detection
Replies: 4
Views: 3305

Re: Non-SPU multithreaded collision detection

Got exactly the same needs, but not enough time to work on it for now...
Would be happy to hear about if you find something interesting ;)
by Yann
Wed May 23, 2012 3:30 pm
Forum: Release Announcements
Topic: Bullet 2.80 SP1 release :OpenCL rigid bodies & Android
Replies: 17
Views: 135268

Re: Bullet 2.80 SP1 release :OpenCL rigid bodies & Android

Hello, Great work ;) The performances you gives in your videos are impressive. We are using bullet for simulating a certain number of ragdolls, and having them running in parallel should be a great improve in our performances :) Do you think I could use the code from you demo for my own purpose (usi...
by Yann
Tue Mar 20, 2012 8:37 am
Forum: General Bullet Physics Support and Feedback
Topic: Multithreaded Linking Problems
Replies: 7
Views: 3712

Re: Multithreaded Linking Problems

When you build the project using the main CMake file, you have to check the 'BUILD_EXTRAS' options, and the project will be built.
If you want it to be installed too, then check the 'INSTALL_EXTRA_LIBS' option as well.
by Yann
Mon Mar 19, 2012 8:32 am
Forum: General Bullet Physics Support and Feedback
Topic: Multithreaded Linking Problems
Replies: 7
Views: 3712

Re: Multithreaded Linking Problems

It's built by the BulletMultiThreaded project.
It was just not installed in previous versions of bullet, use the last revision of Bullet and you'll have it (or copy it it manually).
by Yann
Wed Feb 29, 2012 5:07 pm
Forum: General Bullet Physics Support and Feedback
Topic: Crash when running btParallelConstraintSolver
Replies: 8
Views: 4970

Re: Crash when running btParallelConstraintSolver

Sure, I'll try to create a reproduction case and submit the patches I have to do to make it work.
I'll let you know about it.
by Yann
Fri Feb 17, 2012 2:13 pm
Forum: General Bullet Physics Support and Feedback
Topic: Crash when running btParallelConstraintSolver
Replies: 8
Views: 4970

Re: Crash when running btParallelConstraintSolver

Well, I got something working by adding the following lines in the btParallelCosntraintSolver.cpp, line 1118: if(idA<0 || idB<0) continue; But it work only if I disable split islands ( setSplitIslands(false) ), and still it's not really accurate: in one of my tests, I'm using walls made of individua...