three-zoo

Reusable Three.js utilities. WebGL 1 compatible.

API

• IK: TwoBoneIK (analytical two-bone solver), AimChainIK (distributes aim across a bone chain with per-bone weights).
• Instanced Mesh Pool: InstancedMeshPool, InstancedMeshInstance, InstancedMeshGroup. Keyed by geometry+material, auto-grows capacity.
• Lighting: Sun (DirectionalLight with spherical positioning, shadow auto-config from bounding box or HDR), SkyLight (HemisphereLight that samples sky/ground from HDR).
• Material Converters: Standard to Basic/Lambert/Phong/Toon/Physical, Basic to Physical. Single static convert() call each.
• DualFovCamera: PerspectiveCamera with independent horizontal and vertical FOV. Can fit FOV to points, boxes, or skinned meshes.
• EnhancedPerspectiveCamera: PerspectiveCamera whose vertical FOV is derived from a FovPolicy and the current aspect ratio. Policies: FovPolicyFixedVertical, FovPolicyFixedHorizontal, FovPolicyHybrid, FovPolicyHybridInverted, FovPolicyCover, FovPolicyFit.
• SceneTraversal: static helpers for finding/filtering objects and materials by name, regex, or predicate.
• SceneSorter: assigns renderOrder by distance to a point (front-to-back or back-to-front).
• SkinnedMeshBaker: bakes a SkinnedMesh to static geometry at current pose or a specific animation frame.

Install

npm install three-zoo

Peer dep: three >=0.157.0 <0.180.0

License

MIT