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6cbf89905f60db80bfef21954acceada3a6b6b7b
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15 Commits

Author SHA1 Message Date
Erwin Coumans
6cbf89905f move the clearForceAndTorque to after the stepVelocities, 
see also https://github.com/bulletphysics/bullet3/pull/221
todo: create test
 2014-08-25 08:48:45 -07:00
Erwin Coumans
95f207e786 fix another warning 2014-08-22 11:51:22 -07:00
Erwin Coumans
af5883c6e8 remove a lot of warnings (more todo in demos and serialization code) 2014-08-22 10:29:05 -07:00
kubas
876293ac95 minor: replaced convenience lambda functions 2014-01-09 01:15:51 +01:00
kubas
aa87e47d2d preparing for stabilization investigation: useRK4 is now a btMultiBody flag (not world's), reenabled global velocities (as a flag-controlled option), made the test application easier to handle for multiple multibodiez and added a max coordinate multibody (created from btMultiBody) 2014-01-09 01:14:48 +01:00
kubas
66fdc1704b RK4 for floating systems too 2014-01-09 01:01:03 +01:00
kubas
c5594a5826 a bit of rk4 clean-up 2014-01-09 00:59:48 +01:00
kubas
e5372f3712 first experiments with RK4 2014-01-09 00:56:46 +01:00
kubas
96ff69276f multidof4 patch 2014-01-09 00:26:24 +01:00
erwin.coumans@gmail.com
488dd44835 Added btMultiBodyPoint2Point, it can be used between btMultiBody vs btMultiBody or btMultiBody vs btRigidBody 
Allow picking of btMultiBody, using a btMultiBodyPoint2Point constraint, with limited strength to avoid adding too much energy to the system (= blowup)
Add btMultiBodyJointMotor, it can be used in combination with joint limit (just add the joint limit after the motor, to avoid jitter)
 2013-10-05 01:46:32 +00:00
erwin.coumans@gmail.com
2fb686b937 change btMultiBody to allow removal/changing of links 
(still not easy to modify the link structure of a btMultiBody -> You have to manually re-link parents, copying links around etc)
 2013-10-03 05:13:41 +00:00
erwin.coumans
c2bece5280 Enable btMultiBodyJointLimitConstraint, seems to be working for the prismatic joint 
Fix case sensitive issue, thanks to Martin Felis
Fix crash/bug in btMultiBodyConstraint computation
 2013-10-02 20:14:48 +00:00
erwin.coumans
36cfbd47a6 preparation for joint limit constraint for Featherstone btMultiBody 2013-10-02 06:25:20 +00:00
erwin.coumans
d8b6a02a7a Fix some crashes in FeatherstoneMultiBodyDemo, when using a fixed base 
Create two btMultiBody, one fixed and one free base
Preparation towards btMultiBodyConstraint
 2013-10-02 03:07:52 +00:00
erwin.coumans
f02dd51597 Added a first version of a Featherstone multi body implementation. 
The original version was written by Stephen Thompson.
I replaced Eigen math by Bullet LinearMath, and added a dedicated 6x6 matrix solver. 
Also I integrated support for collisions/contact constraints between btMultiBody and btRigidBody, and de-activation support.
See Demos/FeatherstoneMultiBodyDemo/Win32FeatherstoneMultiBodyDemo.cpp for example usage.
There is currently only support for contact constraints for btMultiBody. 
Next on the list will be adding support for joint limit constraint for btMultiBody. 
The implementation is still experimental/untested, the quality will improve in upcoming Bullet releases.
 2013-10-01 22:50:31 +00:00