Research and development discussion about Collision Detection and Physics Simulation

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Last post

rigid body physics - what to do after generating contacts?

Last post by Dennis « Wed Jun 05, 2013 9:16 pm
Replies: 3
by ConvexHull » Mon May 27, 2013 7:41 am

3 Replies

18227 Views

Last post by Dennis
Wed Jun 05, 2013 9:16 pm
My rag-doll/geometry-cutting results

Last post by mikeshafer « Thu May 30, 2013 2:42 am
Replies: 4
by mikeshafer » Mon May 27, 2013 11:17 pm

4 Replies

20730 Views

Last post by mikeshafer
Thu May 30, 2013 2:42 am
Hinge constraint

Last post by Dani3L « Wed May 29, 2013 6:33 am
Replies: 11
by c0der » Fri Dec 21, 2012 12:52 am

11 Replies

45142 Views

Last post by Dani3L
Wed May 29, 2013 6:33 am
PGS Iteration: local vs. global

Last post by RandyGaul « Fri May 24, 2013 7:44 pm
Replies: 13
by mikeshafer » Tue May 14, 2013 4:44 am

13 Replies

41904 Views

Last post by RandyGaul
Fri May 24, 2013 7:44 pm
Interracting with 2 physics engines in the same Application

Last post by SinisterMephisto « Thu May 23, 2013 12:02 pm
Replies: 1
by SinisterMephisto » Thu May 23, 2013 8:56 am

1 Replies

12950 Views

Last post by SinisterMephisto
Thu May 23, 2013 12:02 pm
Strategies for Simulation Islands

Last post by Dirk Gregorius « Wed May 22, 2013 5:06 am
Replies: 3
by sphet » Tue May 21, 2013 2:34 pm

3 Replies

22207 Views

Last post by Dirk Gregorius
Wed May 22, 2013 5:06 am
SAT - Max Separation and Axis of Min Penetration

Last post by mikeshafer « Tue May 21, 2013 2:27 am
Replies: 7
by RandyGaul » Mon May 20, 2013 8:32 am

7 Replies

35354 Views

Last post by mikeshafer
Tue May 21, 2013 2:27 am
Barraff's Collision Resolver: Contact point solve order

Last post by Dirk Gregorius « Sun May 19, 2013 10:59 pm
Replies: 8
by SinisterMephisto » Thu Apr 25, 2013 11:16 am

8 Replies

30995 Views

Last post by Dirk Gregorius
Sun May 19, 2013 10:59 pm
Chris Hecker's impulse calculation versus block solver

Last post by mikeshafer « Tue May 14, 2013 6:41 am
Replies: 10
by mikeshafer » Thu May 09, 2013 12:32 am

10 Replies

35710 Views

Last post by mikeshafer
Tue May 14, 2013 6:41 am
Box Box Collider - ODE style or GJK?

Last post by sphet « Tue May 14, 2013 5:32 am
Replies: 2
by sphet » Sun May 12, 2013 7:21 pm

2 Replies

14919 Views

Last post by sphet
Tue May 14, 2013 5:32 am
Angular velocity integration

Last post by mikeshafer « Sat May 11, 2013 12:09 pm
Replies: 2
by mikeshafer » Sat May 11, 2013 10:57 am

2 Replies

13089 Views

Last post by mikeshafer
Sat May 11, 2013 12:09 pm
Writting a walk-and-jump character controller from scratch?

Last post by mikeshafer « Fri May 10, 2013 5:57 am
Replies: 1
by ConvexHull » Fri May 10, 2013 5:18 am

1 Replies

12707 Views

Last post by mikeshafer
Fri May 10, 2013 5:57 am
Contact penetration resolution

Last post by sphet « Fri May 10, 2013 4:01 am
Replies: 4
by sphet » Thu May 09, 2013 6:37 pm

4 Replies

22727 Views

Last post by sphet
Fri May 10, 2013 4:01 am
Is btDbvt based on a paper or article?

Last post by sphet « Tue May 07, 2013 4:13 am
Replies: 4
by sphet » Mon May 06, 2013 6:40 pm

4 Replies

17295 Views

Last post by sphet
Tue May 07, 2013 4:13 am
Quaternion Integration: velocity and acceleration

Last post by SinisterMephisto « Wed May 01, 2013 6:20 am
Replies: 2
by SinisterMephisto » Fri Apr 12, 2013 6:12 pm

2 Replies

18441 Views

Last post by SinisterMephisto
Wed May 01, 2013 6:20 am
Support Mapping Function for Triangles with MPR

Last post by mikeshafer « Tue Apr 30, 2013 11:00 am
Replies: 2
by jason.ngai » Wed Mar 13, 2013 3:46 pm

2 Replies

14433 Views

Last post by mikeshafer
Tue Apr 30, 2013 11:00 am
loading a level into jbullet

Last post by deepthought « Mon Apr 29, 2013 6:33 pm

by deepthought » Mon Apr 29, 2013 6:33 pm

0 Replies

11676 Views

Last post by deepthought
Mon Apr 29, 2013 6:33 pm
My rag doll works!

Last post by mikeshafer « Sat Apr 20, 2013 7:58 pm
Replies: 2
by mikeshafer » Sun Jul 29, 2012 8:18 pm

2 Replies

13931 Views

Last post by mikeshafer
Sat Apr 20, 2013 7:58 pm
Facilities for Physics-Based Animation

Last post by Geometrian « Thu Apr 18, 2013 10:31 pm

by Geometrian » Thu Apr 18, 2013 10:31 pm

0 Replies

11443 Views

Last post by Geometrian
Thu Apr 18, 2013 10:31 pm
A verlet based approach for... 3D physics?

Last post by bone « Thu Apr 18, 2013 1:35 pm
Replies: 6
by ConvexHull » Mon Apr 15, 2013 5:56 pm

6 Replies

24168 Views

Last post by bone
Thu Apr 18, 2013 1:35 pm
Numerical Method or Methods used by Bullet

Last post by rtrius « Mon Apr 15, 2013 2:03 am
Replies: 4
by JDTR75 » Tue Apr 09, 2013 1:14 am

4 Replies

22584 Views

Last post by rtrius
Mon Apr 15, 2013 2:03 am
Contact point refreshing

Last post by mikeshafer « Sat Apr 13, 2013 3:22 am
Replies: 1
by mikeshafer » Fri Apr 12, 2013 5:30 pm

1 Replies

11674 Views

Last post by mikeshafer
Sat Apr 13, 2013 3:22 am
Polymers in a sphere

Last post by jma « Fri Apr 12, 2013 9:45 am

by jma » Fri Apr 12, 2013 9:45 am

0 Replies

10399 Views

Last post by jma
Fri Apr 12, 2013 9:45 am
Rope physics with position constraints question

Last post by vitaminD « Thu Apr 11, 2013 4:39 pm
Replies: 4
by vitaminD » Mon Apr 08, 2013 5:23 pm

4 Replies

26056 Views

Last post by vitaminD
Thu Apr 11, 2013 4:39 pm
Questions about collision response order

Last post by bone « Tue Apr 02, 2013 6:57 pm
Replies: 1
by sunhh » Sat Mar 23, 2013 1:40 pm

1 Replies

11958 Views

Last post by bone
Tue Apr 02, 2013 6:57 pm
rigid body joint constraints import from '.bullet' file?

Last post by aKiiY « Wed Mar 27, 2013 2:24 pm

by aKiiY » Wed Mar 27, 2013 2:24 pm

0 Replies

10343 Views

Last post by aKiiY
Wed Mar 27, 2013 2:24 pm
Corotated SPH for deformable solids

Last post by 64185008aaa « Mon Mar 18, 2013 12:39 pm
Replies: 3
by mobeen » Fri Nov 18, 2011 3:11 am

3 Replies

17569 Views

Last post by 64185008aaa
Mon Mar 18, 2013 12:39 pm
Sequential impulses and warm starting

Last post by Dirk Gregorius « Sat Mar 09, 2013 3:37 am
Replies: 15
by c0der » Thu Feb 21, 2013 10:08 am
1

2
15 Replies

57398 Views

Last post by Dirk Gregorius
Sat Mar 09, 2013 3:37 am
Physics Shader - Just a thought

Last post by Dirk Gregorius « Wed Mar 06, 2013 4:19 pm
Replies: 6
by codetiger » Mon Feb 18, 2013 8:56 am

6 Replies

28480 Views

Last post by Dirk Gregorius
Wed Mar 06, 2013 4:19 pm
Soft constraint derivation

Last post by c0der « Mon Mar 04, 2013 11:30 am
Replies: 19
by c0der » Sat Feb 23, 2013 2:45 am
1

2
19 Replies

72850 Views

Last post by c0der
Mon Mar 04, 2013 11:30 am
Resting Contact: Relative Velocity < Impulse Threshold

Last post by SinisterMephisto « Sun Mar 03, 2013 9:23 pm
Replies: 4
by SinisterMephisto » Tue Feb 19, 2013 12:35 am

4 Replies

21431 Views

Last post by SinisterMephisto
Sun Mar 03, 2013 9:23 pm
Collision with a quad terrain

Last post by Dirk Gregorius « Thu Feb 14, 2013 4:59 pm
Replies: 6
by c0der » Sun Jan 13, 2013 3:25 am

6 Replies

26582 Views

Last post by Dirk Gregorius
Thu Feb 14, 2013 4:59 pm
Quaternion angle constraint

Last post by c0der « Fri Feb 08, 2013 2:54 am

by c0der » Fri Feb 08, 2013 2:54 am

0 Replies

10487 Views

Last post by c0der
Fri Feb 08, 2013 2:54 am
Revolute joint between two particles

Last post by c0der « Wed Feb 06, 2013 11:12 pm

by c0der » Wed Feb 06, 2013 11:12 pm

0 Replies

9985 Views

Last post by c0der
Wed Feb 06, 2013 11:12 pm
GJK variant for some concave situations ???

Last post by bootstrap « Mon Jan 21, 2013 9:54 am

by bootstrap » Mon Jan 21, 2013 9:54 am

0 Replies

11707 Views

Last post by bootstrap
Mon Jan 21, 2013 9:54 am
Clipping and contacts using SAT

Last post by Dirk Gregorius « Sat Jan 19, 2013 6:39 pm
Replies: 7
by c0der » Tue Jan 15, 2013 2:38 am

7 Replies

26072 Views

Last post by Dirk Gregorius
Sat Jan 19, 2013 6:39 pm
Point to ellipsoid distance

Last post by zetzar « Fri Jan 18, 2013 5:39 pm

by zetzar » Fri Jan 18, 2013 5:39 pm

0 Replies

12483 Views

Last post by zetzar
Fri Jan 18, 2013 5:39 pm
Line constraint

Last post by Dirk Gregorius « Thu Jan 10, 2013 9:43 pm
Replies: 3
by c0der » Sat Jan 05, 2013 11:50 pm

3 Replies

14967 Views

Last post by Dirk Gregorius
Thu Jan 10, 2013 9:43 pm
Multiplication by time step in Sequential Impulses

Last post by Dirk Gregorius « Fri Jan 04, 2013 4:58 pm
Replies: 4
by Dani3L » Thu Jan 03, 2013 10:11 am

4 Replies

21888 Views

Last post by Dirk Gregorius
Fri Jan 04, 2013 4:58 pm
Impulse accumulation issue

Last post by lgchemer « Wed Jan 02, 2013 9:02 pm

by lgchemer » Wed Jan 02, 2013 9:02 pm

0 Replies

12181 Views

Last post by lgchemer
Wed Jan 02, 2013 9:02 pm
Inverse of a block K matrix

Last post by Dirk Gregorius « Wed Jan 02, 2013 6:33 pm
Replies: 2
by c0der » Wed Dec 19, 2012 10:51 am

2 Replies

14704 Views

Last post by Dirk Gregorius
Wed Jan 02, 2013 6:33 pm
Inverting a matrix of any size

Last post by Dirk Gregorius « Wed Jan 02, 2013 6:29 pm
Replies: 1
by c0der » Wed Dec 26, 2012 11:00 am

1 Replies

11302 Views

Last post by Dirk Gregorius
Wed Jan 02, 2013 6:29 pm
Maybe an error in Bender&Trinkle's recent paper?

Last post by shikui08 « Mon Dec 24, 2012 12:48 am
Replies: 2
by shikui08 » Sun Nov 18, 2012 12:46 pm

2 Replies

12880 Views

Last post by shikui08
Mon Dec 24, 2012 12:48 am
Distance constraint

Last post by c0der « Tue Dec 18, 2012 11:43 pm
Replies: 1
by c0der » Mon Dec 17, 2012 11:02 pm

1 Replies

10791 Views

Last post by c0der
Tue Dec 18, 2012 11:43 pm
Point-point constraint

Last post by c0der « Sun Dec 16, 2012 3:16 am
Replies: 4
by c0der » Fri Dec 14, 2012 4:10 am

4 Replies

17852 Views

Last post by c0der
Sun Dec 16, 2012 3:16 am
S-H clipping

Last post by c0der « Wed Dec 12, 2012 2:03 am

by c0der » Wed Dec 12, 2012 2:03 am

0 Replies

10499 Views

Last post by c0der
Wed Dec 12, 2012 2:03 am
Tangent vector

Last post by c0der « Wed Dec 12, 2012 1:52 am
Replies: 5
by c0der » Mon Dec 10, 2012 12:37 pm

5 Replies

21943 Views

Last post by c0der
Wed Dec 12, 2012 1:52 am
How is the Persistent Manifold Area computed in Bullet ?

Last post by Erwin Coumans « Tue Dec 04, 2012 6:52 pm
Replies: 4
by Dani3L » Fri Nov 30, 2012 12:46 pm

4 Replies

22380 Views

Last post by Erwin Coumans
Tue Dec 04, 2012 6:52 pm
2d game friction problem

Last post by skinnny « Fri Nov 30, 2012 5:17 pm
Replies: 1
by skinnny » Fri Nov 30, 2012 3:36 pm

1 Replies

12759 Views

Last post by skinnny
Fri Nov 30, 2012 5:17 pm
hoping someone could explain something about these engines

Last post by TheSparrow « Mon Nov 19, 2012 5:35 pm

by TheSparrow » Mon Nov 19, 2012 5:35 pm

0 Replies

10167 Views

Last post by TheSparrow
Mon Nov 19, 2012 5:35 pm

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