ozz-animation
A game-focused C++ skeletal animation library and offline toolset for sampling, blending, local-to-model transforms, inverse kinematics, optimization, and compact runtime data.
Why use it
Custom engines gain an animation core designed for cache efficiency and parallel work while separating import from runtime formats for explicit performance and memory control.
Where it fits
Find engines, frameworks, code libraries, version control, and production automation.
What to check
It is not a complete animation editor with timelines or state machines; teams must integrate import, graphs, events, root motion, and engine components while versioning serialized data carefully.