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HOME/USEFUL GUIDES/GUIDE TO 3D FILE FORMATS/HRC FILE FORMAT EXPLAINED
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HRC File Format Explained

The HRC file format is a legacy Softimage, 3D model file format used to store model geometry and hierarchy information. It defines complex 3D models by organizing objects into a structured parent-child hierarchy, preserving hierarchy and spatial relationships.

IconExtensionOriginal SoftwareYearPrimary IndustryGeometryUV MapsTexturesPBRAnimationRiggingOpen Use
HRC Icon.HRCSoftimage1989Animation
Game Development		Mesh
NURBS		✔✔––✔–

HRC File Format Details

What It Stores

The format stores model geometry, material references, texture mapping coordinates, and hierarchy information, including transformation data. It does not store camera or lighting data.

Primary Use Cases

  • Archiving legacy Softimage, 3D assets.
  • Describing hierarchical bone or object structures used in animation pipelines.
  • Transferring Softimage hierarchy data through specialized converters.

Strengths

  • Efficiently represents complex nested transformations and object relationships.
  • Preserves Softimage, 3D model hierarchy for conversion or archival workflows.

Limitations

  • Modern DCC support is limited without specialized converters.
  • Lacks the modern ecosystem support and performance optimizations found in USD or glTF.
  • Primarily restricted to older animation pipelines.

Common Software Support

Legacy support is centered on Softimage, 3D and older Autodesk Softimage versions with the SI/3D Scene/Model importer. Conversion support is documented through Okino PolyTrans.

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