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347 Commits

Author SHA1 Message Date
erwin.coumans
6f60a388c6 add missing Demos/BulletXmlImportDemo 
serialize DynamicsWorldInfo
 2012-09-22 02:06:09 +00:00
erwin.coumans
f2c9cdfb11 add m_rollingFriction to serialization structures 
add btContactSolverInfo and gravity to serialization structures
(actual serialization code will follow soon)
 2012-09-21 23:37:24 +00:00
erwin.coumans
214579ec60 Allow btBulletWorldImporter to convert/export a .bullet file to XML 
Add first version of btBulletXmlWorldImporter, still incomplete but it can read some files
Fix false assert in btSequentialImpulseConstraintSolver
 2012-09-21 22:47:11 +00:00
erwin.coumans
7494463be8 reset the companion Id back to -1, because of a bug related to kinematic objects 
Thanks to Francois for the report. See Issue 652
 2012-09-20 11:32:27 +00:00
erwin.coumans
5bba00dea4 improve control over rolling friction, use the same m_rollingFriction for both linear factor and absolute clamping value. 2012-09-20 04:18:29 +00:00
erwin.coumans
59a29b1859 fix kinematic objects, see Issue 652 
add m_rollingFriction to btRigidBody::btRigidBodyConstructionInfo
 2012-09-20 03:32:52 +00:00
erwin.coumans
22fb7d5c1e improve rolling friction using anisotropic direction, to avoid resting in an instable position 
(for implicit capsule, cylinder and cone shape)
See Bullet/Demos/RollingFrictionDemo for an example
 2012-09-16 17:01:25 +00:00
erwin.coumans
7eebb79ced implemented rolling friction, using a contact constraint. Useful to get rolling spheres to rest, even on a slightly sloped plane. 
See http://www.youtube.com/watch?v=RV7sBAsKu4M and Bullet/Demos/RollingFrictionDemo
Fixes in FractureDemo (mouse picking constraint needs to be removed, otherwise constraint solver crashes/asserts)
 2012-09-15 06:52:17 +00:00
erwin.coumans
54744b6ab9 added gyroscopic force option for btRigidBody, body->setFlags(BT_ENABLE_GYROPSCOPIC_FORCE); 
Note that it can easily introduce instability at regular (60Hertz) simulation steps so it is generally best to not use the option.
If needed, use a very small internal step, such as 1000 Hertz (world->stepSimulation(dt,100,1./1000.f); or stepSimulation(1./1000.,0);
 2012-09-14 21:39:48 +00:00
erwin.coumans
3e9f35c0fd Add btGearConstraint, with a demo in Bullet/Demos/ConstraintDemo 
Thanks to Dimitris Papavasiliou for the idea.
 2012-09-13 22:40:39 +00:00
erwin.coumans
4eb5240cbe Applied patch for character controller by bjorn.wesen. Fixes Issue 644. 
Fixed some warnings in double-precision compile
 2012-09-11 04:36:57 +00:00
erwin.coumans
8c56528a79 Avoid using restitution for ccd motion clamping. Restitution for fast moving objects should be handled by btDiscreteDynamicsWorld::createPredictiveContacts 
(make sure to merge islands based on those predictive contacts too, added some check in the solver)
This fixes Issue 356.
Use same solver settings for AllBulletDemos
Make sure to embed the setCcdSweptSphereRadius inside the actual collision shape (for shoot box)
 2012-09-11 03:12:32 +00:00
erwin.coumans
9612561113 add btDiscreteDynamicsWorld::createPredictiveContacts after discrete collision detection and add temporary contact manifolds, for the constraint solver. 
This should improve 'ccd' handling when using world->getDispatchInfo().m_useContinuous = true;body->setCcdSquareMotionThreshold(...); body->setCcdSquareMotionThreshold(...)
shoot smaller boxes (test)
use yellow instead of orange for contact point normals
tweak default erp and erp2 values, now split impulse is on by default (need to check it)
 2012-09-11 00:56:11 +00:00
erwin.coumans
3b83428a7f Applied polar decomposition patch. Fixes Issue 621. Thanks to Christian for the report, Joshua for the fix, Dongsoo for checking the fix. 
Applied picking cloth patch. Fixes Issue 646. Thanks to Dongsoo.
Applied patch Softbody updateConstraints. Fixes Issue 503. Thanks to Dave Bruce Phillips and Dongsoo.
Fix various warnigns under Mac OSX.
 2012-09-09 17:22:30 +00:00
erwin.coumans
b69c6ac3f5 fix padding in btSolverConstraint, see Issue 650 
fix some warnings
 2012-09-08 19:21:14 +00:00
erwin.coumans
196aa20329 add m_splitImpulseTurnErp solver setting, initialized to 0.1: more stable recovery from deeper penetrations by reducing the angular effect (if split impulse is enabled) 
Set it to 1.0 to disable the effect.
removed broken/not maintained heightfield fluid demo
add some API methods to btPersistentManifold
 2012-09-03 04:38:08 +00:00
erwin.coumans
84b1774dda improve handling of restitution by using the velocity (linear/angular) before applying forces: this is done by re-introducing the btSolverBody and only apply the forces to solver body, and use the original rigid body velocity for restitution computation. 
warmstarting for contact points was broken, fix in btPersistentManifold
enable split impulse by default (at the cost of some performance)
add  the option for zero-length friction (instead of recomputing friction directions using btPlaneSpace), use the solver mode flag SOLVER_ALLOW_ZERO_LENGTH_FRICTION_DIRECTIONS
precompute lateral friction directions (in btManifoldResult)
remove the mConstraintRow[3] from btManifoldPoint, it just took a lot of memory with no benefits: fixed it in btParallelConstraintSolver
 2012-08-31 19:46:24 +00:00
erwin.coumans
10ed7bffd5 Fix serialization issue with btGeneric6DofSpringConstraintData, due to typo 
Skip btGeneric6DofSpringConstraintData parts of the data that will be invalid in .bullet files version 280 or older
This fixes Issue 618, thanks to cyrfer for the report.
minor improvements in premake build (name library output so multiple Visual Studio installations don't conflict)
remove msvc folder
 2012-07-24 04:07:25 +00:00
erwin.coumans
73b217fb07 Apple contribution for OSX SSE and iOS NEON optimizations unit tests, thanks to Jordan Hubbard, Ian Ollmann and Hristo Hristov. 
For OSX:
cd build
./premake_osx xcode4
for iOS:
cd build
./ios_build.sh
./ios_run.sh

Also integrated the branches/StackAllocation to make it easier to multi-thread collision detection in the near future. It avoids changing the btCollisionObject while performing collision detection.

As this is a large patch, some stuff might be temporarily broken, I'll keep an eye out on issues.
 2012-06-07 00:56:30 +00:00
erwin.coumans
710954d772 Constraints can override their own number of solver iterations (either more or less than the default) or leave it default (-1) 
Bump version to 2.80
 2012-03-03 03:07:18 +00:00
erwin.coumans
a5aa2a5ff7 Add single body constructor for btGeneric6DofSpringConstraint. See Issue 601, thanks to aj.dneg for the patch. 2012-03-01 05:48:51 +00:00
erwin.coumans
22dc2ca6c3 fix for btGeneric6DofConstraint, when the btRotationalLimitMotor goes over PI or under -PI. 
See http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=5046&p=27113#p27113
Thanks zlash for the fix/report and Flix for the reminder.
 2012-02-18 09:21:16 +00:00
erwin.coumans
15deee7e79 Fix a division by zero in btConeTwistConstraint::calcAngleInfo2 
http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=7867
Thanks to Aardwolf for report and Roman Ponomarev for the fix
 2012-02-16 23:44:43 +00:00
erwin.coumans
dacb24e968 pass in const vectors into btUniversalConstraint and normalize the local copy 
Thanks to SkewMatrix for the patch, http://code.google.com/p/bullet/issues/detail?id=571
 2011-12-14 09:10:12 +00:00
erwin.coumans
22915b2344 enable randomization of non-contact constraints (disabled by default) 
Thanks to Peter Kyme, http://code.google.com/p/bullet/issues/detail?id=576
 2011-12-14 09:06:14 +00:00
erwin.coumans
8b849e0d07 Fixed split impulse SIMD issue in the constraint solver (doesn't affect default behaviour, as split impulse is switched off by default) 
Thanks to Laurent Coulon for the report/fix. http://bulletphysics.org/Bullet/phpBB3/viewtopic.php?f=9&t=7515&p=25766#p25766
 2011-10-12 20:22:55 +00:00
erwin.coumans
a13d22dc84 Fix a lot of warnings, thanks to ejtttje, Fixes issue 537 
Fix soft body debug rendering
 2011-09-15 01:17:34 +00:00
erwin.coumans
b690019e39 Removed global operator- in btQuaternion, and rewrote the 'getAxis' method 
Add a unit test for testQuaternionGetAxisAngle
Thanks to ejtttje, fixes Issue 538
 2011-09-13 23:37:05 +00:00
erwin.coumans
16cc5665de fix in the breaking constraints feature 2011-07-01 21:51:38 +00:00
erwin.coumans
cdddf9d25a add FractureDemo to AllBulletDemos 
improvements in CCD handling
some cleanup of CcdPhysicsDemo and BasicDemo
 2011-04-09 01:14:21 +00:00
erwin.coumans
b16b61d9d6 disable constraints when they exceed a breaking threshold, control it with new methods in btTypedConstraint: get/setBreakingImpulseThreshold and get/setEnabled 
Disabled constraints are not removed from the world and they use negligible CPU cycles
 2011-04-02 19:01:23 +00:00
erwin.coumans
d198451909 clear the applied impulse for constraints (no warmstarting) 
simplify logic, see Issue 499
 2011-04-02 00:44:15 +00:00
erwin.coumans
852fa3ba30 add the BT_ prefix for all #ifdef guards, to avoid conflicts with developers own header defines. 
Fixes Issue 497

//license header
#ifndef BT_RIGIDBODY_H
#define BT_RIGIDBODY_H
class btRigidBody
{
};
#endif //BT_RIGIDBODY_H
 2011-04-01 17:14:52 +00:00
erwin.coumans
f17fa297d5 wrapped up first version of the FractureDemo 
move 'split impulse' / position solver before velocity solver, so that applied impulse is available for fracture
add btSliderConstraint::getAngularPos see http://code.google.com/p/bullet/issues/detail?id=489
 2011-03-18 00:20:52 +00:00
erwin.coumans
7a9c349a8c enable predictive contact constraints, see BasicDemo 2011-03-05 03:01:44 +00:00
erwin.coumans
e621c880d6 avoid naming conflicts with vectormath/sse version 2011-02-28 06:54:08 +00:00
erwin.coumans
4e8596eef5 Added some helper methods for constraints and btMatrix3x3, 
Thanks to  francois, See Issue 466

Prevent crash in SoftBodyDemo, when picking constraints and demo-mode switches to next demo.
 2011-02-27 03:28:53 +00:00
erwin.coumans
3f74c62ca4 new getLow/getHigh methods aren't inline, thanks harkon for report and fix, see Issue 484 2011-02-22 01:36:50 +00:00
erwin.coumans
f19995aeab improvement for btHingeConstraint to deal with large constraint limits, see Issue 479 
Thanks promyclon for the report and patch, and Roman Ponomarev for testing.
 2011-02-19 20:02:19 +00:00
erwin.coumans
dd7ee6919e serialize btGeneric6DofSpringConstraint 
serialize btSoftBody::Joint
See also Issue 456
 2010-12-16 02:35:44 +00:00
erwin.coumans
c49927b4ed Use cylinder inertia tensor, instead of box, by default. 
See Issue 427

Expose some internal data for constraints,
Thanks to Francois Sugny, see Issue 420
 2010-11-17 23:55:39 +00:00
rponom
a1c1007a81 Bug in btAdjustAngleToLimits() (issue 377) fixed 2010-09-16 21:04:41 +00:00
erwin.coumans
c296122e4e fix build for Intel Compiler 11.1 -> move static ::getFixedBody method from header to cpp file. 2010-09-08 00:38:15 +00:00
erwin.coumans
54c07ddac4 Implemented constraint damping, as requested in Issue 416 
Thanks Mark for the feedback
 2010-08-24 21:12:32 +00:00
erwin.coumans
40958f2b4a Implement btTypedConstaint::setUserConstraintPtr/setUserConstraintPtr (data shared with get/setUserConstraintId) 2010-08-11 01:01:50 +00:00
erwin.coumans
73ca9bafc8 fix angular only for btHingeConstraint 2010-07-30 22:57:49 +00:00
erwin.coumans
7a519da691 add support in btHingeConstraint for m_angularOnly 2010-07-21 22:50:10 +00:00
erwin.coumans
745b3d4e05 fix some warnings, see Issue 400 2010-07-20 01:09:34 +00:00
erwin.coumans
b3f081fc85 Added preparation for GPU hardware accelerated solvers for BulletSoftBody (OpenCL and DirectCompute backends will follow) 
Added assert to check for positive masses in btCompoundShape::calculatePrincipalAxisTransform, see Issue 399
Fixes for LLVM/GCC compilation issue in btSequentialImpulseConstraintSolver
(Untested) fix for Linux 64bit compilation Issue 409
 2010-07-16 23:26:25 +00:00
erwin.coumans
fbc17731ec Several changes to sync Bullet trunk with PlayStation 3 spubullet version 
Still needs some cross-platform fixes
 2010-07-08 17:02:38 +00:00