threejs-animation

When to use this skill

ALWAYS use this skill when the user mentions:

• AnimationMixer.update, AnimationAction play/pause/stop, crossfade, synchronized clips
• AnimationClip from glTF or AnimationClipCreator, retargeting caveats at API level
• Keyframe tracks: position/rotation/scale/color tracks, boolean/string tracks where applicable
• IK: CCDIKSolver / CCDIKHelper from addons

IMPORTANT: animation vs objects

• threejs-animation = time evaluation and tracks.
• threejs-objects = SkinnedMesh/Skeleton attachment, bind pose—mesh side.

Trigger phrases include:

• "AnimationMixer", "AnimationAction", "AnimationClip", "crossFade", "KeyframeTrack"
• "动画混合", "骨骼动画", "剪辑", "淡入淡出"