guillaumeblanc/ozz-animation

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2967 stars · 349 forks observed · 2026-10-16

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

ozz-animation is an open source C++ 3D skeletal animation library and toolset providing runtime character animation playback (sampling, blending, IK, skinning) with a data-oriented, SIMD-optimized design. It includes offline tooling to convert major DCC formats like FBX, Collada, and glTF into optimized runtime structures, and is renderer- and game-engine-agnostic.

Use cases

• play skeletal animations in a custom game engine
• blend and sample character animation clips at runtime
• convert FBX or glTF animations to an optimized runtime format
• implement inverse kinematics like foot IK or two-bone IK
• do software skinning with SIMD acceleration
• reduce keyframes and compress animation data
• run character animation in WebAssembly

When to choose

• you need a fast, memory-efficient, engine-agnostic skeletal animation runtime in C++
• you want offline tooling to import animations from FBX, Collada, or glTF
• you target multiple platforms including WebAssembly with no OS-specific dependencies
• you need IK, blending, motion extraction, and skinning out of the box

When to avoid

• you need a full game engine with rendering built in
• you work in a language other than C++ without bindings
• you only need simple tweened UI or 2D sprite animation
• you want a high-level editor-driven animation system

Facets

library · maturity stable

animation graphics parser math simulation graphics simulation cpp windows wasm cross-platform skeletal-animation simd data-oriented fbx gltf collada inverse-kinematics skinning game-engine-agnostic soa game-development linux macos

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