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Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.
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In Gym env, get pybullet.error: Cannot load soft body. & Cannot load URDF file.(deformable) #4517

Open aganganga opened 1 year ago

aganganga commented 1 year ago

I am trying do RL with deformable objects in pybullet. I first try to the code of "kukaGymEnv.py" by sample code in pybullet_env.

I replaced the robotics arm's target "self.blockUid" from a rigid object block.urdf , to others rigid object is good, but to a deformable one _torusdeform.urdf get the trouble.

I could run loadURDF call _torusdeform.urdf well in pybullet general codes, only get the "pybullet.error:Cannot load URDF " file while run the spinning up RL training. I use loadSoftBody faced the same problem, it's usually fine, only when run the spinning up RL training get the error. image

I want to know what is the difference between the use of deformable objects in this environment and the general rigid body? Or is it that deformable objects cannot exist in this environment?

Thanks for answering.

VallesMarinerisExplorer commented 1 year ago

Not 100% sure this is your exact problem but you may want to consider adding your geometry as a .vtk file. See https://github.com/bulletphysics/bullet3/issues/2726