Supported Formats
Scene Formats
Section titled “Scene Formats”| Format | Extension | Import | Export |
|---|---|---|---|
| Universal Scene Description | .usd, .usda, .usdc | ✓ | ✓ |
| USDZ Archive | .usdz | ✓ | ✓ |
| Filmbox | .fbx | ✓ | — |
| glTF / GLB | .gltf, .glb | ✓ | — |
| Wavefront OBJ | .obj | ✓ | — |
| Alembic | .abc | ✓ | — |
| Polygon File Format | .ply | ✓ | — |
| Stereolithography | .stl | ✓ | — |
Non-USD formats are converted to USD on import. The converted representation is what Gantry edits and exports.
Material Format Support
Section titled “Material Format Support”| Format | View | Edit | Convert to/from |
|---|---|---|---|
| USD Preview Surface | ✓ | ✓ Full | ✓ |
| MaterialX | ✓ | ✓ Full | ✓ |
| RealityKit | ✓ | ✓ Full | ✓ |
| OpenPBR | ✓ | ✓ Partial | — |
Texture Formats
Section titled “Texture Formats”The following image formats are supported for material textures:
- PNG (.png)
- JPEG (.jpg, .jpeg)
- TIFF (.tiff, .tif)
- HEIC (.heic)
- AVIF (.avif)
- BMP (.bmp)
When exporting for RealityKit, Gantry can convert textures to KTX2 with GPU-compressed ASTC encoding using Apple Texture Converter. KTX2 is optimized for runtime loading on Apple hardware and significantly reduces GPU memory usage. See Optimizing Textures for details.