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Experimental Features

Welcome to the bleeding edge!

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Isaac Lab is open source because our intention is to grow a community of open collaboration for robotic simulation. We believe that robust tools are crucial for the future of robotics.

Sometimes new features may require extensive changes to the internal structure of Isaac Lab. Directly integrating such features before they are complete and without feedback from the full community could cause serious issues for users caught unaware.

To address this, major and experimental features are developed in the isaaclab_contrib package and released as experimental features. This way, the community can experiment with and contribute to a feature before it is fully integrated, reducing the likelihood of being derailed by unexpected errors.

The isaaclab_contrib Package

The isaaclab_contrib Package

The source/isaaclab_contrib folder is the community incubator for Isaac Lab. It provides a collection of specialized robot types, actuator models, sensors, controllers, and other components that extend the core framework for specific use cases. Contributions here are:

  • Actively maintained and supported by the community
  • Developed openly so the broader community can provide feedback before a wider release
  • Candidates for eventual integration into the core Isaac Lab packages once they mature

The package follows Isaac Lab’s standard extension structure and can be installed with optional extras that pull in only the dependencies needed for the features you use:

# The base contrib package is installed with the core Isaac Lab packages.
# Install optional dependencies (e.g., for RLinf VLA post-training) via the
# matching root extra. --inexact keeps the existing environment untouched.
uv sync --inexact --extra rlinf

Current Contributions

The following features are currently available in isaaclab_contrib:

FeatureDescriptionDocumentation
Visuo-Tactile Sensor (TacSL)GPU-accelerated simulation of vision-based tactile sensors with elastomer deformation, RGB tactile images, and per-taxel force fields.visuo_tactile_sensor
RL Post-Training for VLA Models (RLinf)Reinforcement learning fine-tuning of Vision-Language-Action models (e.g., GR00T, OpenVLA) using RLinf’s scalable PPO / Actor-Critic / SAC infrastructure.rlinf_vla_posttraining
Multirotor SystemsFull simulation support for multirotor aerial vehicles (quadcopters, hexacopters, octocopters), including the ~isaaclab_contrib.assets.Multirotor asset, ~isaaclab_contrib.actuators.Thruster actuator with asymmetric motor dynamics, and ~isaaclab_contrib.mdp.actions.ThrustAction MDP terms.API reference: ~isaaclab_contrib.assets, ~isaaclab_contrib.actuators, ~isaaclab_contrib.mdp
Geometric ControllersGeometric controllers for multirotor attitude, velocity, acceleration, and position tracking on SO(3) (Lee et al.). Suitable for both trajectory following and RL baselines.API reference: ~isaaclab_contrib.controllers
Newton Solver CouplingProxy coupling between MJWarp and VBD. Deformable assets are implemented in isaaclab_newton.assets.API reference: ~isaaclab_contrib.coupling

Contributing

We welcome contributions to isaaclab_contrib! If you have developed specialized robot assets, novel actuator models, custom MDP components, or domain-specific utilities, please follow the Isaac Lab contribution guidelines and open a pull request. See the contributing guide for more information.