KNOWLEDGE GRAPH / AI 3D
Understand
what you generate.
Definitions connected to real tools.
Learn the representation, geometry, materials and formats behind modern 3D generation.
TRELLIS
The original structured-latent model family for image- and text-conditioned 3D generation.
TRELLIS.2
A 4B single-image 3D model that generates meshes and PBR surface attributes through O-Voxel latents.
O-Voxel
A sparse, field-free voxel representation for geometry and surface attributes in TRELLIS.2.
SC-VAE
A variational autoencoder that compresses sparse 3D structure and attributes into a smaller latent space.
Sparse DiT
A diffusion-transformer design that works over active sparse 3D latent locations instead of a dense volume.
Structured latent
A compressed feature representation whose latent values remain attached to spatial structure.
PBR
A material workflow that describes surface response with consistent physical parameters rather than baked lighting alone.
Base color
The intrinsic visible color of a surface, separated as much as possible from directional lighting and highlights.
Roughness map
A linear-data map controlling how broad or sharp a surface's reflected highlights appear.
Metallic map
A material channel identifying areas that behave like conductive metal rather than dielectric material.
Mesh
A surface built from vertices, edges, and polygon faces, usually triangles at render time.
Topology
The connectivity and organization of a mesh, independent of its exact size or pose.
Retopology
Rebuilding a mesh with deliberate connectivity for deformation, subdivision, editing, or a target polygon budget.
Remeshing
Redistributing or reconstructing surface elements to improve consistency or meet a target mesh form.
Watertight mesh
A closed surface that encloses a volume without boundary gaps, a common prerequisite for reliable fabrication operations.
Voxel
A value associated with a cell or sample in a three-dimensional grid, analogous to a pixel in a 2D image.
UV mapping
Mapping points on a 3D surface to coordinates in a 2D texture image.
Texture baking
Transferring surface detail or evaluated properties from one representation to texture maps on another mesh.
GLB
The binary container form of glTF, commonly used to deliver a scene and its resources as one portable file.