Manual physics annotation is slow
Isaac Sim requires USDPhysics schemas with rigid body, collision, and mass APIs. Manually annotating each asset takes hours per object.
SimReady Assets for NVIDIA Isaac Sim
Drop in 3D models, images, or text descriptions and get physics-enabled OpenUSD assets validated for Isaac Sim. Rigyd estimates mass, friction, restitution, and generates collision meshes automatically.
Updated 2026-05-08
The problem
Why existing workflows fall short.
Limited SimReady library
NVIDIA's SimReady library has ~1,000 assets. A single warehouse simulation can require 50,000+ unique objects with accurate physics.
Format conversion headaches
Getting .glb, .fbx, or .obj files into Isaac Sim-compatible OpenUSD with proper physics schemas requires multiple tools and manual steps.
How Rigyd helps
Automate the hard parts.
Direct OpenUSD output
Rigyd outputs validated OpenUSD with PhysicsRigidBodyAPI, PhysicsMassAPI, and PhysicsCollisionAPI, ready to drop into Isaac Sim.
AI-powered physics estimation
Mass, friction, restitution, and center of mass are estimated automatically using multi-view analysis and a calibrated materials database.
Collision mesh generation
Automatic convex decomposition (V-HACD) generates collision geometry optimized for Isaac Sim's PhysX runtime.
97%
cost reduction vs manual asset preparation
~5 min
per asset, from upload to SimReady USD
1,000+
assets generated for Isaac Sim workflows
FAQ
Frequently asked questions
Does Rigyd output valid USDPhysics schemas for Isaac Sim?
Yes. Rigyd emits OpenUSD with PhysicsRigidBodyAPI, PhysicsMassAPI, and PhysicsCollisionAPI applied, the exact schemas Isaac Sim's PhysX runtime expects. Assets drop into Isaac Sim without additional physics authoring.
How is Rigyd different from NVIDIA's SimReady asset library?
NVIDIA's SimReady library is ~1,000 curated assets for general use. Rigyd converts your own 3D catalog, typically 10,000 to 50,000 SKUs, into SimReady OpenUSD automatically, so simulations match the environment your robots actually operate in.
What file formats can I upload for Isaac Sim conversion?
Rigyd accepts .glb, .fbx, and .obj files. No pre-processing needed, geometry cleanup, collision mesh generation via V-HACD, and physics annotation happen automatically. Output is Isaac-Sim-ready OpenUSD in ~5 minutes per asset.
Are Rigyd outputs compatible with Isaac Lab and Isaac Sim 5.0?
Yes. Rigyd outputs standard USDPhysics schemas (PhysicsRigidBodyAPI, PhysicsMassAPI, PhysicsCollisionAPI) which are version-stable across Isaac Sim releases. Assets work in Isaac Sim 4.x, Isaac Sim 5.0, and Isaac Lab without modification. Articulation root and joint schemas are also standard USDPhysics, so robot assets and articulated mechanisms transfer cleanly across the stack.
How fast do Rigyd-generated assets load into Isaac Sim?
Load time scales with collision-mesh complexity. Rigyd tunes V-HACD parameters per asset class, typically 16-32 convex hulls per graspable object, so loads stay under 100ms per asset on an RTX-class GPU. For warehouse-scale scenes with 10,000+ instanced assets, USD references mean only unique geometry loads once. Memory overhead is negligible compared to manual high-poly collision approximations.
Start building simulations in Isaac Sim faster
Drop in a 3D model, image, or text description and get a physics-enabled OpenUSD asset in minutes.