Skeleton

An armature defined by a hierarchy of Bone objects. Used by SkinnedMesh for skeletal animation.

Constructor

const skeleton = new Skeleton(bones?, boneInverses?)

If boneInverses is omitted, they are computed automatically.

Properties

• uuid — UUID string
• bones — Array<Bone>
• boneInverses — Array<Matrix4> (inverse bind matrices)
• boneMatrices — Float32Array (flattened bone data)
• boneTexture — DataTexture (bone data for GPU, or null)

Methods

• init() — Initialize bone matrices (called by constructor)
• calculateInverses() — Recompute inverse bind matrices from current bone world matrices
• pose() — Reset to bind pose
• update() — Flatten current bone transforms into boneMatrices
• computeBoneTexture() — Create GPU data texture for bone matrices
• getBoneByName(name) — Find bone by name
• dispose() — Free GPU resources
• clone() — Clone skeleton
• toJSON() / fromJSON(json, bones) — Serialization

Usage

const bones = [shoulder, elbow, hand]
shoulder.add(elbow)
elbow.add(hand)
const skeleton = new Skeleton(bones)