- Replace runtime mesh-based bounding-box computation with static dimension-based polygons for item footprints
- Add snapUpToGridStep() and getGridAlignedDimensions() to placement-math for grid-cell-aligned placement wireframes
- Add expandBoundsToGrid() to use-placement-coordinator for consistent wireframe snapping
- Add currentCursorRotationY to PlacementContext; preserve world orientation across item-surface transitions
- Fix item detach from surface: use worldToBuildingLocal() instead of event.localPosition to avoid coordinate-space jump
- Subscribe to useLiveTransforms in FloorplanPanel during placement so R/T keyboard rotation refreshes the 2D overlay immediately
- Fix FloorplanItemImage rotation (+180° to account for top-down camera capture orientation)
- Simplify spatial-grid-manager: single dimension-based getItemLocalBounds(), removes runtime mesh-metadata path
- Remove item-mesh-metadata system (compute-item-mesh-metadata, item-mesh-metadata-system, sync-request)
Mark stair nodes as dirty when slabs change so stairs properly stack on
top of floor slabs. StairSystem now computes slab-driven elevation by
sampling segment centers against the spatial grid.
Changes:
- spatial-grid-sync: mark stair nodes dirty on slab changes (same level)
- stair-system: syncStairGroupElevation + getStairSlabElevation compute
Y offset from slab data; rotateXZ helper for world-space transforms
- stair-renderer: use position-x/position-z so the system controls Y
The spatial-grid manager, scene-store subscriptions, and the viewer
outliner's Object3D arrays are module-level singletons that previously
lived for the whole page lifetime. When an app unmounted the Editor
(e.g. navigating away from the 3D editor and back in an SPA host) they
retained references to the disposed Three.js scene graph, which caused
the app to freeze on re-entry as the stale data was replayed against a
fresh scene.
- initSpatialGridSync now returns the unsubscribe handle from its
scene-store subscription so callers can detach it.
- initializeEditorRuntime becomes reversible: it wires up the spatial
grid, space detection and SFX bus on mount and returns a teardown
closure that detaches both store subscriptions, clears the spatial
grid manager, and truncates the viewer outliner's selected/hovered
arrays in place.
- The Editor component's runtime-init effect now returns that teardown,
so the singletons are reset cleanly every time the Editor unmounts.
- initSFXBus is now idempotent via an internal guard so repeated
Editor mounts do not stack duplicate mitt listeners.
Co-authored-by: Claude <noreply@anthropic.com>
Major changes:
- Roof system rewrite with roof-segment support
- Scene store refactor
- Spatial grid improvements
- Item light system
- Post-processing and selection manager updates
- Perf monitor component
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
