Catalog, place, and validate USD assets in Omniverse scenes with bbox offset correction.
npx skills add https://github.com/isaac-sim/IsaacSim --skill usd-pipeline
Please help me install this Agent Skill. Skill: usd-pipeline Source: https://github.com/isaac-sim/IsaacSim/tree/main/skills/usd-pipeline Command: npx skills add https://github.com/isaac-sim/IsaacSim --skill usd-pipeline
Building realistic USD scenes in Omniverse requires measuring scattered asset libraries, correcting for non-origin-centered bounding boxes, and ensuring shaders render in headless environments—tasks that are error-prone and slow when done manually.
Catalog all USD assets under my assets folder, then replace the placeholder cubes in my stage with matching dual-shader assets using bbox offset correction.
High-intent search queries and answers about installing and using this skill.
Open the stage with Usd.Stage.Open, then use UsdGeom.BBoxCache.ComputeWorldBound on the default prim to get the aligned range. Multiply dimensions by the stage's meters-per-unit value, since some assets use centimeters instead of meters.
Collect visible UsdGeom.Cube prims grouped by name prefix, map each prefix to a measured asset, then define Xform prims at each block position with a reference to the asset. Subtract the asset's bbox center from the target position so it lands correctly.
MDL-only materials do not render in headless SimulationApp on arm64. Use assets with a UsdPreviewSurface fallback (dual-shader), and add explicit DomeLight and DistantLight prims since headless mode does not create viewport lights automatically.
Most USD assets are not centered at the origin, so referencing them directly places their bbox center away from the target. Correct by translating to target minus the asset's bbox center, and set Z to negative bbox minimum to ground the asset.
No. Scaling assets to cube dimensions destroys visual density and realism. Place assets at their natural size, and if an asset is far larger than its zone, use smaller modular pieces instead.
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