O-Voxel is the native structured representation used by TRELLIS.2 to encode geometry and surface attributes without relying on an iso-surface field.
- Structure
- Sparse voxels
- Field
- Field-free
- Carries
- Geometry + surface attributes
- Used by
- TRELLIS.2
Why field-free matters
Iso-surface representations usually recover a boundary from a scalar field. O-Voxel represents the asset without requiring that conversion, which broadens the topology it can express.
Representation is not topology cleanup
Support for open or non-manifold geometry is useful for generation, but a downstream task may still require a closed manifold, retopology, or a lower triangle budget.