Commit Graph

459 Commits

Author SHA1 Message Date
erwin.coumans
5698d6aed1 reset randseed in constraint solver for determinism
use BT_USE_SSE in btDbvt, defined in btScalar.h
2009-02-11 05:44:48 +00:00
erwin.coumans
6d17f63c54 fix in btMinkowskiSumShape,
thanks to Kester Maddock for the report, reproduction case and fix:
http://code.google.com/p/bullet/issues/detail?id=194
2009-02-11 00:12:08 +00:00
erwin.coumans
7a2a98078a Fixes for broadphase/paircache determinism.
Revert definition for ATTRIBUTE_ALIGNED16, and try to force sizeof(btSolverConstraint) by using unions with btScalar, for non-btScalar data types.
Use btAssert and not assert.
Don't access btAlignedObjectArray elements, for zero sets
2009-02-10 23:50:21 +00:00
erwin.coumans
2a10a61f50 Some work-in-progress on making btDbvtBroadphase deterministic. When using the btSortedOverlappingPairCache, it seems deterministic now. todo: when using btHashedOverlappingPairCache. 2009-02-10 03:50:58 +00:00
erwin.coumans
98436a85c3 Fix issues with btSortedOverlappingPairCache, both for btAxisSweep3 and btDbvtBroadphase. 2009-02-09 22:57:52 +00:00
erwin.coumans
cf751f5493 Add a convenience method to control the number of single-shot contact points for convex-convex collision detection, using the perturbation method.
(btDefaultCollisionConfiguration::setConvexConvexMultipointIterations)
Default value is zero, for best performance.
2009-02-09 19:53:00 +00:00
john.mccutchan
cd126aae8f Height field terrain shape fixes from tomva1@yahoo.com 2009-02-09 16:28:44 +00:00
erwin.coumans
41af960e7a Applied some warning/assert patches, thanks to Ole K.
http://code.google.com/p/bullet/issues/detail?id=186
2009-02-06 19:05:54 +00:00
erwin.coumans
24d1fea8b2 applied patches against warnings, thanks a lot Ole K.
http://code.google.com/p/bullet/issues/detail?id=165
http://code.google.com/p/bullet/issues/detail?id=164
http://code.google.com/p/bullet/issues/detail?id=166
http://code.google.com/p/bullet/issues/detail?id=167
2009-02-06 06:09:57 +00:00
erwin.coumans
2162f6663d disable help text by default in AllBulletDemos (text slows down many graphics cards)
improve CollisionDemo.cpp, show multi-contact generation using perturbation
improve ColladaConverter: add hinge/point 2 point constraint conversion support, add btScaledTriangleMeshShape support
Fix Dynamica MayaPlygin: remove 'active' flag, it has to be replaced by mass=0 for active, mass<>0 for passive
Added missing projectfiles
Fixed single-shot contact generation. it is disabled by default to improve performance
Bugfixes for character controller, thanks to John McCutchan for reporting
Constraint solver: better default settings
btDefaultAllocator: aligned allocator uses non-aligned allocator (instead of directly malloc/free)
disable memalign by default, use Bullet's aligned allocator
2009-02-06 03:20:43 +00:00
erwin.coumans
fd2cc88db8 contact point perturbation is work-in-progress, so disable until fully functional and tested. 2009-02-05 06:25:09 +00:00
erwin.coumans
daf350168d fix spelling mistake: pertube -> perturbe 2009-02-03 01:00:55 +00:00
erwin.coumans
0754876d77 Calculate multiple contact points (for convex-convex and convex-plane) when less then 3 points exist in the persistent manifold.
Uses the normal pertubation method, described by Gino van den Bergen:  http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=4&t=288&p=888#p888
Made btRigidBody::getInvInertiaDiagLocal const, thanks to abhikp (http://code.google.com/p/bullet/issues/detail?id=183 )
2009-02-03 00:54:01 +00:00
erwin.coumans
bcbe730471 Perform several rotation pertubations, to create multiple collision contact. works for convex versus plane. todo: convex versus convex.
See issue http://code.google.com/p/bullet/issues/detail?id=20:

Note that the default number of pertubation iterations (10) and pertubation angle (0.05) can be modified through the collisionConfiguration:

	btConvexPlaneCollisionAlgorithm::CreateFunc* func = (btConvexPlaneCollisionAlgorithm::CreateFunc*)collisionConfiguration->getCollisionAlgorithmCreateFunc(BOX_SHAPE_PROXYTYPE,STATIC_PLANE_PROXYTYPE);
	func->m_numPertubationIterations = 0;
	func = (btConvexPlaneCollisionAlgorithm::CreateFunc*)collisionConfiguration->getCollisionAlgorithmCreateFunc(STATIC_PLANE_PROXYTYPE,BOX_SHAPE_PROXYTYPE);
	func->m_numPertubationIterations = 0;
2009-02-02 21:11:19 +00:00
erwin.coumans
ed4fab6c47 Fix in btCompoundShape that can cause removeChildShapeByIndex to crash.
Thanks to Benoit for the report and proposed fix:
http://code.google.com/p/bullet/issues/detail?id=171
2009-01-19 07:32:24 +00:00
erwin.coumans
994224c94f fix another bug caused by error-prone btCollisionShape 'getShapeType' refactoring.
Thanks a lot to Alex Silverman for the report and fix:
http://code.google.com/p/bullet/issues/detail?id=170
2009-01-19 07:19:24 +00:00
erwin.coumans
0e3b04d952 Add COLLADA physics support for GImpact (allowing dynamic moving rigid bodies using concave collision shapes) in ColladaDemo, and ColladaConverter (import and export)
Note: ColladaConverter will export a btGImpactConvexDecompositionShape the same as a btCompoundShape, so importing an exported btGImpactConvexDecompositionShape (roundtrip) creates a btCompoundShape
2009-01-19 04:18:02 +00:00
john.mccutchan
a8ec916af0 Added Height Field Fluid Demo to Bullet. All code stored in the Demos/HeightFieldFluidDemo directory for now.
Please see HfFluidDemo.cpp for examples of how to use the height field fluid along with buoyant collision shapes.

The implementation is still lacking in my ways:
1) Need to complete more collision algorithms for buoyant collision shapes
2) Support compound buoyant shapes
3) The buoyancy model isn't that great
4) Fluid volume can be lost over time
2009-01-08 22:53:23 +00:00
erwin.coumans
c541414c84 disable btDbvt::collideTT with transform, it is unused and uses an invalid Intersect method. 2008-12-09 06:21:19 +00:00
erwin.coumans
6db1b932fd Make the btDbvtBroadphase deterministic/reproducable, by sorting the btBroadphasePair using unique ID, instead of proxy address.
The btAxisSweep3 didn't suffer from this issue, because proxies were always allocated in-order, as part of an array.
2008-12-08 20:16:29 +00:00
erwin.coumans
f3a70b65eb Fix issues with btCompoundShape when adding/removing child shapes after construction of a btRigidBody.
Thanks tp for the report:
http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2925&p=11700#p11700
2008-12-07 20:57:38 +00:00
erwin.coumans
635e1a6aa0 set broadphase handle to zero when destructing a btCollisionWorld, just in case a collision object/ rigid body is re-used.
Thanks to Ole for reporting

Fix a bug , causing some deep penetrations to be missed. Not likely to have impacted many users, as such deep penetrations should have prevented in the first place.
Thanks a lot to Andy O'Neil for reporting and reproduction case.
2008-12-05 22:40:13 +00:00
erwin.coumans
5383ed4930 + need to reset rigid body using 'setCenterOfMassTransform' to reset world inertia tensor
+ fixes in compound algorithm -> recompute contact points
+ add debug drawing to some demos.
+ revert btJacobianEntry change
+ replace dCROSSMAT by btVector3::getSkewSymmetricMatrix
2008-12-02 04:01:56 +00:00
erwin.coumans
e80feca36b Big work-in-progress refactoring of the constraint solver:
1) Add fast branchless SIMD support for constraint solver (Windows only until we get other contributions).
See resolveSingleConstraintRowGenericSIMD in Bullet/src/BulletDynamics/ConstraintSolver/btSequentialImpulseConstraintSolver.cpp
resolveSingleConstraintRowGenericSIMD can be used for all constraints, including contact, point 2 point, hinge, generic etc.

2) During this refactoring, all constraints support the obsolete 'solveConstraintObsolete' while we add 'getInfo1' and 'getInfo2' support.
This interface is almost identical interface to Open Dynamics Engine, to make it easier to port Dantzig LCP solver.

3) Some minor refactoring to reduce huge constructor overhead in math classes.
2008-12-01 06:41:25 +00:00
erwin.coumans
e26b11ea5a fixed IBM Cell sdk build + demo (need to review related patch), thanks Jochen for reporting the issues. 2008-11-26 19:34:20 +00:00
erwin.coumans
decf91a34d Made btCollisionWorld::convexSweepTest and btGhostObject::convexSweepTest consistent. Both have an optional last argument for allowedCcdPenetration.
Bugfix due to recent change in friction in constraint solver.
2008-11-19 19:55:14 +00:00
erwin.coumans
50344c4a23 Add support for broadphase acceleration of convex cast (re-use rayTest implementation with an added aabb min/max, zero for rays)
Add Concave Convexcast demo back in AllBulletDemos, and tweaked it a bit.
Fix view frustum of ForkLiftDemo (caused picking to fail)
Removed innerloop profiling for ray and convex casts, it hurts performance.
Set default #aabb's in CDTestFramework to 8192
2008-11-19 00:38:29 +00:00
erwin.coumans
fe461296c6 Fix issue with un-initialized broadphase proxy during broadphase insert. It was an chicken-egg problem:
1) creating a broadphase proxy -> adding pairs during insertion. But during this pair insertion, the btGhostObject broadphase handle isn't set yet (it is done in step 2)
2) assign the broadphase proxy to btGhostObject
Thanks to ihar3d for the report http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2864
2008-11-17 18:40:21 +00:00
erwin.coumans
0deffb7495 mutable wasn't needed for this anonymous union (btBroadphasePair) 2008-11-16 08:06:07 +00:00
erwin.coumans
a5c18db854 fix CMake install for CMAke 2.6 -> version GREATER then 2.5 2008-11-15 03:48:24 +00:00
rponom
8abddb2400 Fixed deleting objects procedure for btSimpleBroadphase 2008-11-15 00:17:59 +00:00
erwin.coumans
cc43193b25 Fixes to allow compilation of BulletMultiThreaded under 64bit linux 2008-11-14 23:51:49 +00:00
erwin.coumans
9516e505a7 fix broken build
Add btCompoundShape export support for BulletColladaConverter. 
Thanks to JamesH for the report/request:
http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=12&t=2840
2008-11-12 22:25:23 +00:00
erwin.coumans
5feea39803 Fix compilation for MSVC 6.0 for Bullet and COLLADA DOM.
Fix issues with btDbvt: use ATTRIBUTE_ALIGNED16
Removed several places where variable was declared within for statement: for (int i=0; should be int i; for (i=0
2008-11-12 18:37:05 +00:00
erwin.coumans
444fbfeb40 add obsolete 'getPoints' to be backwards compatible (breaks MayaPlugin) 2008-11-12 16:53:06 +00:00
erwin.coumans
1381394dd8 reverted 'getActiveObjects', island management will be improved for Bullet 2.74 release.
The implementation was error-prone and could lead to crashes.

See http://code.google.com/p/bullet/issues/detail?id=128
2008-11-11 16:19:20 +00:00
erwin.coumans
8865e38e5b bugfix: for btCompoundShape::getChildTransform: return (const) reference to btTransform, not a copy.
added btCompoundShape::updateChildTransform
Thanks to ejtttje, see http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2831
2008-11-10 09:04:04 +00:00
erwin.coumans
5dac27e694 fix in GIMPACT, reported here: http://code.google.com/p/bullet/issues/detail?id=118
tweak character margin for smoother sliding (needs to be fixed properly)
2008-11-08 21:33:37 +00:00
erwin.coumans
075ba0b9d9 Enabling USE_SEPDISTANCE_UTIL2 requires 100% reliable distance computation, but there are issues with large size rations. todo: fix this
Make synchronizeMotionStates() pure virtual in btDynamicsWorld and public in btDiscreteDynamicsWorld. Thanks Chunky.
2008-11-08 19:27:53 +00:00
erwin.coumans
3e9af21cec disable btActivatingCollisionAlgorithm 2008-11-08 17:14:13 +00:00
erwin.coumans
f6dcf94f25 Reduce default memory pool sizes (will use heap on overflow anyway), fits better with iPhone and consoles
Debug drawer needs to iterate over all objects, not just active
2008-11-08 06:37:48 +00:00
erwin.coumans
cef40e5cce no 'const int' but inline for a few methods
remove redundant/unreachable 'breaks'
2008-11-08 05:27:26 +00:00
erwin.coumans
88ac9e8bfe added btActivatingCollisionAlgorithm.* to build systems 2008-11-07 04:27:59 +00:00
erwin.coumans
345da029b9 minor issues, don't inline a out-of-line method, reorder members 2008-11-07 04:02:32 +00:00
erwin.coumans
86353f0ad8 add btActivationCollisionAlgoritm to fix deactivation problems, reported here:
http://bulletphysics.com/Bullet/phpBB3/viewtopic.php?f=9&t=2616

provide access to active objects, requested here:
http://code.google.com/p/bullet/issues/detail?id=128
2008-11-07 03:37:14 +00:00
erwin.coumans
9aadc53322 Add VERSION to CMake build.
http://code.google.com/p/bullet/issues/detail?id=137
Removed TerrainDemo from AllBulletDemos, it isn't properly tested (has grinds to a halt after running it for a while, shooting some objects on it).
2008-11-07 00:10:29 +00:00
erwin.coumans
a4c205afc0 enable convex separation util, potentially improves performance. set threshold to zero (docs follow)
fix scaling issue with btConvexHullShape
use virtual getSupportingVertex on non-SPU platform
2008-11-06 23:38:18 +00:00
john.mccutchan
9b5df088de Committing height field terrain work from tomva1@yahoo.com 2008-11-06 19:41:31 +00:00
erwin.coumans
2daf428386 updated CMake support: remove Lib prefix, to facilitate Apple Framework support, add App prefix for demos
See discussion here: http://code.google.com/p/bullet/issues/detail?id=129
2008-11-06 06:54:35 +00:00
erwin.coumans
108c88af41 Applied Cmakelist patch, adding Apple Framework support
Disable libxml LIBXML_MODULE_EXTENSION
Fixed include path in btConeTwistConstraint (it should be relative to src folder, not using ../../ )
Thanks to ejtttje, http://code.google.com/p/bullet/issues/detail?id=129
2008-11-06 06:02:38 +00:00