Module skeleton 

Skeletal animation primitives: bones, poses, skinning matrices, bone masks.

Provides the structural foundation for character animation:

• Skeleton — the bone hierarchy with name index
• Pose — per-bone local transforms that can be blended and masked
• BoneMask — per-bone weights for partial-body animation layers
• SkinningMatrices — GPU-ready world-space skinning matrices
• SkeletonBuilder — fluent API for constructing skeletons

Structs

Bone

A single bone in the skeleton hierarchy.

BoneId

Typed index into a Skeleton’s bone list.

BoneMask

Per-bone blend weights in [0.0, 1.0] used for partial-body animation layers.

Pose

Per-bone local transforms representing a character pose.

Skeleton

The bone hierarchy for a character or object.

SkeletonBuilder

Fluent builder for constructing a Skeleton.

SkinningMatrices

GPU-ready skinning matrices computed from a pose and skeleton.

Transform3D

Local-space transform: translation, rotation, scale.