ovphysx
ovphysx is a self-contained Python library for ovstage/USD-based physics simulation with DLPack tensor interoperability. It wraps NVIDIA PhysX and provides:
- ovstage attachment plus rigid-body / articulation simulation
- Same-device zero-copy tensor exchange with transparent CPU/CUDA staging for NumPy, PyTorch, and other DLPack frameworks
- Environment cloning for batched reinforcement-learning workloads
Quick start
pip install ovphysx
import ovstage
from ovphysx import PhysX
stage = ovstage.Stage("scene")
ovstage.population.open_usd(
stage, "scene.usda", ordinal=1, domains=ovstage.PopulationDomain.PHYSICS
)
physx = PhysX()
physx.attach_ovstage(stage, read_ordinal=1)
physx.step(1.0 / 60.0)
physx.detach_ovstage()
physx.release()
stage.destroy()
For full documentation and tutorials, see ovphysx/docs/ inside the
installed package, or the ovphysx repository.
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