Module model 

The loader-facing layer: clips, tracks, and the skeleton before metric resampling or repair. The glTF loader preserves authored animation values; the FBX loader normalizes scene coordinates and bakes takes to linear TRS tracks. Mechanical checks (NaN, quaternion flips, key density, …) read this layer; semantic checks read the sampled layer built from it (see crate::sample).

Structs

Bone

One skeleton node/bone in parent-before-child order.

Clip

One animation clip targeting the document skeleton.

Document

A loaded file: one skeleton, any number of clips targeting it, and the scene assets (meshes, materials, and textures) that rode in alongside them. assets is default-empty: the check catalog judges animation and ignores it, but the load/write round-trip carries it so transform and convert preserve geometry instead of silently dropping it.

MaterialAsset

Factor-only material plus an optional embedded base-color texture.

MeshAsset

Mesh data attached to a scene node.

Primitive

One triangle-list primitive sharing a material. Attribute arrays may be indexed already; Primitive::weld dedupes an unindexed primitive into indexed form.

SceneAssets

Mesh and material assets carried alongside animation data.

Skeleton

Bones in topological order: a bone’s parent always precedes it. Loaders are responsible for establishing this invariant.

SourceInfo

Loader-provided provenance for a Document.

TextureAsset

An embedded texture: raw encoded image bytes (glTF embeds the file as-is, no decoding).

Track

One animated property of one bone.

Transform

Node-local TRS transform.

Enums

Interpolation

Interpolation mode for a Track.

Property

Animated property targeted by a Track.

TrackValues

Storage for a track’s key values.

Type Aliases

BoneId

Index into Skeleton::bones.