1) allow to render deformables in 'getCameraImage', for TinyRenderer (tested OK) and EGL (untested)
2) allow to have textures for deformables. See deformable_ball.py, deformable_anchor.py and deformable_torus.py for examples
3) deformables: allow to request simulation mesh data (even if there is a render mesh) See deformable_anchor.py for an example usage
data = p.getMeshData(clothId, -1, flags=p.MESH_DATA_SIMULATION_MESH)
4) fix deletion of deformables, thanks to Fychuyan, https://github.com/bulletphysics/bullet3/pull/3048
5) allow to enable and disable double-sided rendering, p.changeVisualShape(objectUid, linkIndex, flags=p.VISUAL_SHAPE_DOUBLE_SIDED)
6) fix GripperGraspExample, model not found
7) Fix deformable anchor not attaching to multibody with object unique id of 0
8) Fix issue with assignment of unique ids in TinyRenderer/EGL renderer (always use broadphase uid)
9) Avoid crash/issue of simulation with pinned vertices (mass 0) in btDeformableBackwardEulerObjective::applyExplicitForce
10) Store uv/normal in btSoftBody::RenderNode to allow textured meshes
11) (uncomment in btSoftBodyHelpers.cpp): dump vertices and indices in obj wavefront format, when loading a VTK file, for quicker creation of a (textured) surface mesh
12) allow interpolateRenderMesh also for old position-based soft bodies (not only the shiny new FEM deformables)
13) fix a few premake targets
14) update build_visual_studio_vr_pybullet_double_cmake.bat so it suits c:\python37 and installs locally
for local install of Bullet, see also this example https://github.com/erwincoumans/hello_bullet_cmake
(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.
This allows to render at a different machine, sending all assets across the TCP network, using port 6667 by default.
You can use ssh port forwarding to get this working:
ssh -R 6667:localhost:6667 username@remotehost.com -v
python3 -m pybullet_utils.graphicsServer
python3 -m pybullet_utils.graphicsClient
Note that there are still some tcp networking issues that can cause a hang, just restart graphics server and graphics client if it hangs.
(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)
add optional flags in pybullet.resetSimulation.
fix compile issue due to SKIP_DEFORMABLE_WORLD
fix issue in .obj importer (todo: replace with tiny_obj_loader)
todo: replace std::ifstream fs; by fileIO usage.
Implement StablePD in C++ through setJointMotorControlMultiDofArray method for pybullet_envs.deep_mimic, see testHumanoid.py and examples/pybullet/examples/humanoidMotionCapture.py
Minor fix in ChromeTraceUtil in case startTime>endTime (why would it happen?)
allow btMultiBody to not wakeup (for some RL experiments)
move deep_mimic motion files to data/motions folder, so we can use the args files unmodified.
When using the USER_DATA_ADDED and USER_DATA_REMOVED notifications, some
more information is necessary than just the user data id, especially
when a user data entry has been removed.
Add inverse dynamics / mass matrix code from DeepMimic, thanks to Xue Bin (Jason) Peng
Add example how to use stable PD control for humanoid with spherical joints (see humanoidMotionCapture.py)
Fix related to TinyRenderer object transforms not updating when using collision filtering
See createMesh.py for an example.
The data has to fit in shared memory, hence the limit on Mac is lower than Windows and Linux:
#ifdef __APPLE__
#define B3_MAX_NUM_VERTICES 8192
#define B3_MAX_NUM_INDICES 32768
#else
#define B3_MAX_NUM_VERTICES 131072
#define B3_MAX_NUM_INDICES 524288
#endif
Using calculateInverseDynamics with zero target acceleration allows to compute the non-linear dynamics forces (coriolis/gyroscopic) and/or gravity force.
See createObstacleCourse.py for an example use. At the moment a limit of 1024 vertices and 1024 indices.
Will be lifted once we implement the streaming version (soon).
enable follow cam in other Gym locomotion environments
add testing assets for multi-material obj files -> sdf conversion.
Also use ER_NO_SEGMENTATION_MASK flag for TinyRenderer/EGL plugin renderer
Support SDF loading through fileIO plugin.
Replace strcspn by C code (not crossplatform)
Add flag for loadURDF to use color from MTL file (instead from URDF link material)
pybullet.URDF_USE_MATERIAL_COLORS_FROM_MTL and pybullet.URDF_USE_MATERIAL_TRANSPARANCY_FROM_MTL
