Octaviewer
We aim to render detailed 3D models (e.g., scan reconstructions) in a web browser from compact files.
The approach is to minimize mesh complexity by transferring normals and color attributes to textures,
and to use a spherical parameterization for improved continuity, level-of-detail, and compression.
Processing the models builds on several earlier techniques:
- Min-cycle topology simplification to pinch handles and tunnels [§6.2 in Collet et al. 2015]
- Spherical parameterization to remap onto a flat octahedron [Praun and Hoppe 2003]
- Stretch minimization to prevent undersampling at extremities [Sander et al. 2001]
- Appearance-preserving simplification to minimize visual errors [Cohen et al. 1998]
- Progressive meshes to create smooth level-of-detail geomorphs [Hoppe 1996]
- Mesh compression using the Draco implementation of Edgebreaker [Rossignac 2002]
- Texture compression using AVIF for all surface attributes (albedo, normals, etc.)
See the project page for more info.
A single-chart map enables a compact glTF file, seamless rendering, and runtime LOD:
Select a thumbnail to open an interactive 3D viewer in a new tab.