Only swing doors (hinged/double/french) baked an open clip into the GLB —
they carry a `pascalSwingLeaf` marker the exporter reads. Every operation
door type (sliding, pocket, barn, folding, garage-sectional/rollup/tiltup)
baked its `operationState` straight into mesh vertex positions at build
time, so the exporter had no re-poseable node to sample and the artifact
never flagged them `openable`.
Give operation doors the same build-once + pose-at-t split windows already
use. Each builder now emits its moving parts in a named group at the CLOSED
pose, and `poseDoorMovingParts` (the single source of truth, shared by the
live system and the GLB exporter) drives the open motion:
- sliding/pocket/barn: rigid leaf translation
- garage-tiltup: rigid hinge about the lintel
- folding: hinged accordion chain (nested groups, per-joint fold)
- garage-sectional: per-panel groups posed along the overhead curve
- garage-rollup: the one type whose live geometry changes (slats roll onto
a drum, which a glTF clip can't express) keeps its full-detail live
rebuild; the curtain is wrapped in a top-pivoted group the exporter
scales up into the lintel as the baked approximation.
The exporter samples each operation door's motion into keyframe tracks
(16 segments) so the non-linear rigs (curve, accordion) stay faithful, and
stamps `extras.openable` + `extras.clips` so any glTF consumer can play it.
Tests: per-type kinematics (groups build, rest closed, open) +
sliding/roll-up clip baking (sampled position/scale tracks).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
