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260 Commits

Author SHA1 Message Date
Erwin Coumans
c517c434e6 pybullet allow to enable/change joint limits: 
pybullet.changeDynamicsInfo(objectUniqueId, linkIndex, jointLowerLimit=..., jointUpperLimit=...) # jointLowerLimit <= jointUpperLimit

and joint limit max force:
pybullet.changeDynamicsInfo(objectUniqueId, linkIndex, jointLimitForce=...)

For example:
p.changeDynamics(sphereUid,linkIndex, jointLowerLimit=1, jointUpperLimit=3, jointLimitForce=10.5)

add b3ChangeDynamicsInfoSetJointLimit/b3ChangeDynamicsInfoSetJointLimitForce
add getConstraintType for btMultiBodyConstraint
 2020-07-07 19:42:23 -07:00
Erwin Coumans
9de78ab6b3 fix array size in inverse kinematics orientation command 
bump up shared memory version, since this was a potentially incompatible change
 2020-07-06 22:57:03 -07:00
Xuchen Han
8a189763df support configuring gravity factor from client 2020-05-26 16:51:45 -07:00
erwincoumans
5233b72160
Merge pull request #2800 from xhan0619/splitImpulseMulti 
Stability improvements for deformable.
 2020-05-21 09:47:33 -07:00
Erwin Coumans
754dbd5fda add pybullet.unsupportedChangeScaling feature for some small experiments, this is not general and has many limitations that are not likely are going to be resolved, 
so unless it does what you want, ignore this api, it is unsupported!
 2020-05-17 13:46:11 -07:00
Xuchen Han
ce237ec7ec fix API for different damping modes for mass spring 2020-05-11 17:08:33 -07:00
Xuchen Han
644fd5f311 add API for two different damping modes for mass spring 2020-05-11 16:42:17 -07:00
Erwin Coumans
53b65b795f add fractionEpsilon to filter rays with similar hit fraction 
remove debug printf
 2020-05-09 02:42:47 -07:00
Erwin Coumans
f0cccf0faa add collisionFilterMask to rayTestBatch and rayTest 
This will allow to exclude (filter) certain bodies.
By default, static bodies have collision group 2, and dynamic (mass=1) bodies have collision group 1.
As long as mask & group != 0, a raytest will be performed.
 2020-05-08 11:57:25 -07:00
Erwin Coumans
daa0a27403 add reportHitNumber to allow reporting a specific ray intersection hit 
(by default, pybullet.rayTestBatch reports the closest hit, so you can report 2nd closest or 3rd closest hit etc)
Fix pybullet.createCollisionShape, in some cases (concave trimesh, convex mesh) two instances were created.
 2020-05-07 23:23:24 -07:00
Xuchen Han
ae3526254d add API for setting repulsion stiffness 2020-04-27 17:42:45 -07:00
Erwin Coumans
1640eef937 pybullet: enable getMeshData for multibody/rigid body (and filter on collisionShapeIndex for compound shapes) 2020-03-17 00:38:12 -07:00
Erwin Coumans
27fbbfee7f pybullet removeAllParameters (sliders, buttons) 
pybullet addUserDebugParameter adds button instead of slider, if min > max.
 2020-03-16 21:29:30 -07:00
Xuchen Han
62537436f2 more Motor->NonContactInner 2020-03-02 16:03:27 -08:00
Xuchen Han
c86da93d58 fix type error 2020-03-02 13:29:59 -08:00
Xuchen Han
7ad19fde6f formatting 2020-02-26 14:16:51 -08:00
Xuchen Han
84117b8440 separate motor constraint iterations and expose API 2020-02-26 14:11:41 -08:00
Erwin Coumans
6afa0a463d unsupported: expose collisionMargin to changeDynamics/getDynamicsInfo. 
add cube_convex.urdf for testing this collisionMargin. Test script:
import pybullet as p
import time
p.connect(p.GUI)
plane = p.loadURDF("plane_implicit.urdf")
cube = p.loadURDF("cube_convex.urdf",[0,0,1])
p.setGravity(0,0,-10)
while (1):
	p.stepSimulation()
	pts = p.getContactPoints()
	p.changeDynamics(plane,-1,collisionMargin=0.3)
	p.changeDynamics(cube,-1,collisionMargin=0.3)
	print("===================")
	print("cube pos=", p.getBasePositionAndOrientation(cube)[0])
	print("margin=", p.getDynamicsInfo(plane,-1)[11])
	#time.sleep(1./10.)
 2020-02-14 17:36:40 -08:00
Tigran Gasparian
19075f75b2 Only clear the user data cache when a full user data sync is requested. 2020-02-03 15:24:12 +01:00
Tigran Gasparian
34db76d263 Adds an option to syncUserData to specify the bodies for which to sync. 2020-01-23 14:46:33 +01:00
Erwin Coumans
8ebdf7862c fix b3RobotSimulatorClientAPI_NoDirect::changeConstraint API 2020-01-09 17:56:21 -08:00
Xuchen Han
7bce5d61f4 separate in-plane and bending stiffness for mass spring model for easier parameter tuning 2019-11-27 11:40:10 -08:00
Xuchen Han
00add5490f fix separate render and sim mesh 2019-11-19 23:10:08 -08:00
Xuchen Han
64e5e007e3 load render mesh from command 2019-11-19 21:07:26 -08:00
Erwin Coumans
96deb42aa5 pybullet.createSoftBodyAnchor 2019-11-19 19:20:08 -08:00
Erwin Coumans
1f6d504e44 fix memory issues in btSparseSDF.h 
(hash function on structure with uninitialized padding, and  Reset not called in destructor)
expose sparseSdfVoxelSize in PyBullet.setPhysicsEngineParameter
don't call deformable wireframe drawing in the wrong thread/place (it can cause crashes)
 2019-11-18 10:22:56 -08:00
Xuchen Han
a86710c5b6 add python binding to allow loading deformable objects 2019-11-15 21:25:11 -08:00
Chuyuan Fu
913400eba1 add SOLVER_USE_ARTICULATED_WARMSTARTING option and APIs 
fix compile
 2019-10-23 21:36:26 -07:00
Xuchen Han
e13578fee3 add option to turn self-collision on/off 2019-10-15 13:47:55 -07:00
Xuchen Han
ec91a0ffa4 configure damping coefficients for neohookean models 2019-10-15 13:47:54 -07:00
Xuchen Han
3d2f945f9c address PR comments 2019-09-04 18:49:44 -07:00
Xuchen Han
0b391798b7 hook deformable world into the physics server 2019-09-04 18:48:00 -07:00
Erwin Coumans
88d1788ee5 PyBullet: allow to update an existing heightfield shape 
Also, use flags = p.GEOM_CONCAVE_INTERNAL_EDGE to enable internal edge filtering for heightfield (disabled by default)
See https://github.com/bulletphysics/bullet3/blob/master/examples/pybullet/examples/heightfield.py
 2019-08-14 21:06:10 -07:00
Erwin Coumans
f9b232b153 pybullet: allow programmatic creation of heightfield. See https://github.com/erwincoumans/bullet3/tree/master/examples/pybullet/examples/heightfield.py 
premake4: allow to build example browser without C++11, re-enable stable PD control plugin using --enable_stable_pd=True
 2019-08-11 13:59:24 -07:00
Chuyuan Fu
2e64b27a31 bindings for setting warmstarting factor 
fix space
 2019-08-06 15:53:31 -07:00
Erwin Coumans
7263439c4b improved for inserting profile timings from Python, to analyzer performance of pybullet programs. 
See examples/pybullet/examples/profileTiming.py for an example. Note that python and c++ is properly interleaved.
Open a timings with a name, close the timing without a name. Note that timings can be recursive, added/popped as a stack.
 2019-08-01 19:12:16 -07:00
Erwin Coumans
51fba6f78d export btHeightfieldTerrainShape to PyBullet. Note that tinyrenderer doesn't support rendering it (it would be too slow on CPU) 
fix rare getKeyboardEvents threading issue
change texture color to default plane.urdf blue
 2019-07-29 20:23:38 -07:00
Erwin Coumans
ee9575167d expose PyBullet.calculateInverseKinematics2 that allows to specify multiple IK end effector locations (not multiple orientations) 
usage example:
jointPoses = p.calculateInverseKinematics2(bodyUniqueId, [endEffectorLinkIndices], [endEffectorTargetWorldPositions])
 2019-07-10 17:21:18 -07:00
Erwin Coumans
ed4515ae17 for the GraphicsServer, expose a sync transform interval: only synchronize the transform once the stepSimulation exceeds this time interval. 
(for example, run the simulation at 1kHz but sync the graphics transforms to remove graphics server at 30Hz)
 2019-06-19 09:45:29 -07:00
Erwin Coumans
c3b7f39aaf expose shadowMapResolution (texture resolution) and shadowMapWorldSize (size in meters in world space) 
expose pybullet.ConfigureOpenGLVisualizerRequest(lightPosition=[x,y,z], shadowMapWorldSize=10.5, shadowMapResolution=16384)
See examples/pybullet/examples/configureDebugVisualizer.py for an example.
This reimplements https://github.com/bulletphysics/bullet3/pull/2295 but without creating a new command/status and explicitly referring to the debug visualizer
(since the 'getCameraImage' also has a lightPosition)
 2019-06-19 09:01:16 -07:00
Erwin Coumans
7e76ee0ad7 make pybullet.getMeshData work for softbody 2019-06-17 21:43:38 -07:00
Chuyuan Fu
229e87c3c9 get mesh data api 
fix compile

fix typo
 2019-06-17 19:00:53 -07:00
Chuyuan Fu
5b5307cf14 load softbody API 
update warning message

format
 2019-04-25 15:40:15 -07:00
erwincoumans
e97a7d77af only report solver analytics if enabled using setPhysicsEngineParameter(reportSolverAnalytics=1) 2019-04-14 18:20:20 -07:00
erwincoumans
5ff52e47d9 report constraint solver analytics data, currently for each island the number of solver iterations used and remaining residual error. 2019-04-11 22:19:02 -07:00
erwincoumans
4ea907aacf expose maxJointVelocity through PyBullet.changeDynamics, this Fixes Issue #1890 
bump up PyBullet to version 2.4.8
 2019-03-09 09:23:16 -08:00
erwincoumans
9408e4f2d0 Expose anisotropic friction, add snake demo. Simple snake slither locomotion from > 15 years ago, thanks to Michael Ewert @ Havok! 
Visit http://www.snakerobots.com to see one of these in the wild
 2019-03-07 21:13:00 -08:00
erwincoumans
0af0f193ee reduce size of SharedMemoryStatus by moving state details into shared memory streaming block. 2019-03-06 23:27:59 -08:00
erwincoumans
8e1c1448ab Expose motor drive torque reporting for motors in spherical joints in getJointStateMultiDof. 2019-02-27 09:54:12 -08:00
erwincoumans
e7e46154bb
Merge pull request #2106 from erwincoumans/master 
fast createMultiBody batch creation, more deep_mimic work
 2019-02-12 12:10:10 -08:00