Search found 91 matches
- Mon Feb 27, 2017 1:28 pm
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: paper Interactive Simulation of Elastic Deformable Materials
- Replies: 1
- Views: 9717
paper Interactive Simulation of Elastic Deformable Materials
Hi has any one readed the paper "Interactive Simulation of Elastic Deformable Materials" by martin.servin In chapter 2.4 they propose a new time step method but I can not deduce the formula a*lambada formulateinpaper.png this is my deduce mydeduce.jpg Note the term "1/2 * deltat + B&q...
- Wed Nov 05, 2014 3:02 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Is collision constraint proposed in PBD paper correct?
- Replies: 2
- Views: 8198
Re: Is collision constraint proposed in PBD paper correct?
I have the same question, how to make a robust softbody surface-softbody surface collision algo,and make it suitable for use in the PBD
- Mon Nov 15, 2010 8:28 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Capsule separating axis
- Replies: 1
- Views: 4068
Re: Capsule separating axis
Actually in my code I find Axis as 1. triangle face normal, 2.Triangle edge-capsule edge , 3.triangle point - capsule edge 4.trignale point - capsule edge point 3 and 4 will have totally 2+2*3 axis but they can be simplified to 3 axis test .in my code i first find the cloest point between first tria...
- Tue Aug 31, 2010 1:46 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: Papers and stuff
- Replies: 2
- Views: 9140
Re: Papers and stuff
That's great,Thanks for share,
- Fri Aug 13, 2010 2:25 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: Opensource inverse kinematics library
- Replies: 4
- Views: 21319
Re: Opensource inverse kinematics library
clauchiorean:
Thanks a lot for the information , By the way do you know how current games couple the IK system with the artists-maded animation ?
Thanks a lot for the information , By the way do you know how current games couple the IK system with the artists-maded animation ?
- Wed Aug 11, 2010 1:58 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: Opensource inverse kinematics library
- Replies: 4
- Views: 21319
Re: Opensource inverse kinematics library
Hi clauchiorean:
I am very interseting about the implementation of the project ,what method do you use in the IK solution, I only know the simple cylic coordinate descendt but seems not enough could you refer me the method use in your project?
I am very interseting about the implementation of the project ,what method do you use in the IK solution, I only know the simple cylic coordinate descendt but seems not enough could you refer me the method use in your project?
- Mon Aug 09, 2010 2:44 pm
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: New research on real-time deformable body dynamics (FEM).
- Replies: 28
- Views: 71238
Re: New research on real-time deformable body dynamics (FEM)
Hi Dirk: I read the paper <<A nonsmooth nonlinear conjugate gradient method for interactive contact force problems >> But there seems some problem in the paper . As they say r = (H − I)Lamda+h can be interpreted as the gradient of a non-smooth nonlinear quasi-quadratic function f(Lambda) ≡ 1/2|| r||...
- Fri Aug 06, 2010 1:21 pm
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: New research on real-time deformable body dynamics (FEM).
- Replies: 28
- Views: 71238
Re: New research on real-time deformable body dynamics (FEM)
Hi Dirk:
have you got the pdf of the paper<<A nonsmooth nonlinear conjugate gradient method for interactive contact force problems >>,If you have, could you send me one?
have you got the pdf of the paper<<A nonsmooth nonlinear conjugate gradient method for interactive contact force problems >>,If you have, could you send me one?
- Fri Aug 06, 2010 2:53 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: New research on real-time deformable body dynamics (FEM).
- Replies: 28
- Views: 71238
Re: New research on real-time deformable body dynamics (FEM)
XperienS: Thanks alot for you reply,that's the data I need, Actually I am more intersting about your new CG LCP sover, so you mean you solve rigid body and sift body all use your new solver? Or you use traditional PGS solver for rigid body and use your new solver for rigid-soft constraint(contact et...
- Thu Aug 05, 2010 7:19 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: New research on real-time deformable body dynamics (FEM).
- Replies: 28
- Views: 71238
Re: New research on real-time deformable body dynamics (FEM)
That's great ,Look forward to see your paper,but also I am a little intersted to know the speed efficiency and memory need when solve the system
- Wed Aug 04, 2010 5:40 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: Lagoa Multiphysics
- Replies: 3
- Views: 10562
Re: Lagoa Multiphysics
Impressive!It said all the body share the same solver ,what is the solver based,could you give a short descirption?
- Wed Aug 04, 2010 5:37 am
- Forum: Links, Papers, Libraries, Demos, Movies, Comparisons
- Topic: New research on real-time deformable body dynamics (FEM).
- Replies: 28
- Views: 71238
Re: New research on real-time deformable body dynamics (FEM)
Seems good ,Could you write paper describe you new techinique?
- Tue Jul 27, 2010 2:21 am
- Forum: General Bullet Physics Support and Feedback
- Topic: [Help] Need method to fill a Surface mesh with nodes
- Replies: 1
- Views: 3898
Re: [Help] Need method to fill a Surface mesh with nodes
the paper<<Tetrahedral Mesh Generation for Deformable Bodies>>
describle the volume mesh generate . but it based on tetrahedron ,may be you can change the method to cube?hope this will help
describle the volume mesh generate . but it based on tetrahedron ,may be you can change the method to cube?hope this will help
- Sun Jul 11, 2010 3:52 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: About tetra Mesh generate
- Replies: 0
- Views: 3827
About tetra Mesh generate
Hi: I have notice that bullet use tetgen as the volume mesh generator as suggested by Dirk. I have also tested this library but I find it is not appropriate for game physics. Because this Algo is Boundary constrainted this means given a fine surface mesh this libary cannot generate a coarse volume m...
- Wed Jun 09, 2010 5:15 am
- Forum: Research and development discussion about Collision Detection and Physics Simulation
- Topic: Anti-Tunnelling/Sinking
- Replies: 3
- Views: 5311
Re: Anti-Tunnelling/Sinking
Too large box size(like the ground shape) will make the collision detection algo unstable,try to use triangle mesh shape or bvtriangle mesh shape instead, there is an old thread mentioned for this problem,but I forget the link.