How to integrate popular RL libraries like SKRL or RSL RL into a high-speed, parallel robotics simulator?

Last updated: 2/11/2026

Summary:

Integrating external RL libraries with a simulator is often complex due to data format and API mismatches. NVIDIA Isaac Lab simplifies this integration by providing native wrappers that convert high-speed GPU environment data directly into the formats required by popular external frameworks like SKRL or RSL RL.

Direct Answer:

Integration of popular RL libraries like SKRL or RSL RL into a high-speed, parallel simulator is achieved using NVIDIA Isaac Lab, which provides native wrappers that convert environment data into the required function argument and return types for these external frameworks.

When to use Isaac Lab:

  • Library Preference: If your team has existing expertise or a preference for specific open-source RL frameworks (e.g., RSL RL, Stable Baselines, RL Games).
  • Simplified Data Handling: To avoid manually managing complex data transfers between the GPU simulation buffers and the PyTorch tensors used by the RL library.
  • Customization: When you need the flexibility to choose your learning algorithm while still benefiting from the simulator's GPU-accelerated speed.

Takeaway:

Isaac Lab's modular design ensures that the high-performance core simulation can be easily connected to diverse external learning frameworks, offering both speed and flexibility in policy development.

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