# W-036 Status

status: done_current_scope
task: 导出动画和帧状态

## Implemented

Scene frame current/start/end and object transforms are exported from the
serialized Scene block. Legacy FCurve lists and Blender 5.2 layered Actions
(keyframe strips/channelbags) are decoded into target-scoped `AnimationIR`
channels with RNA paths, scalar keyframes and bounded frame ranges. The
Timeline uses scene bounds instead of a fixed 250-frame range after a `.blend`
is opened.

## Accepted bounded scope

Timeline keyframe insertion/deletion for object location, Euler rotation and
scale writes Blender layered Actions through Main. The UI exposes frame range,
key dots, active Action and CONSTANT/LINEAR/BEZIER interpolation selection.
Object constraint enable/influence is editable and node constraints plus pose
constraints are exported in SceneIR. Frame/pose goldens cover 1/5/10/15 and
save/reopen compares evaluated matrices and vertices.

The N-014 bounded extension now reads and atomically replaces single-object
Action Clip stacks, and Blender's native depsgraph evaluates the saved Main at
the requested frame. Transition/meta/sound strips, Animated Time, reverse,
Drivers, complete blending matrices and arbitrary constraint types remain
structured future extensions; Three.js does not approximate them.