Type Alias: MeshJSON

MeshJSON = object

Plain-data serialization of Mesh (half-edge, n-gon, single outer loop per face — no holes). positions is a flat XYZ pool; each entry in faces is an array of vertex indices (CCW). faceUvs, when present, mirrors faces: each inner array is [u, v, u, v, ...] paired with that face's corners — per-corner so a shared vertex can carry different UV in each face. materials, when present, has one entry per face (null = no material), each an id keyed into materialPalette. Texture assets referenced by materials live in texturePalette — shared across materials to avoid duplicate blobs.