Adds a "Create Custom Furniture" button at the bottom of the catalog
sidebar that expands into a form with fields for name, dimensions
(W/D/H in meters), color picker, and category selector. Submitting
creates a simple box-geometry catalog item and adds it to the
in-memory catalog for immediate placement into rooms.
- ExportManager with JSON export (toJSON + timestamp), import with
file picker and validation, and high-res PNG screenshot capture
- Save/Load/Screenshot buttons in sidebar
- Ctrl+S keyboard shortcut for quick save
- Design load event updates info bar
- Mode system: view | select | move | rotate | place
- Click furniture to select with cyan wireframe outline
- Keyboard: R/Shift+R rotate, Delete remove, Escape deselect,
Ctrl+Z undo, Ctrl+Shift+Z/Ctrl+Y redo
- Listens to DesignState changes to sync scene on undo/redo
- Wired into index.html with DesignState integration
- Added furnitureIndex to mesh userData for state lookups
- Export COLORS for external module access (themes)
- Extend _onClick to detect furniture clicks before room clicks,
dispatching 'furnitureclick' with catalog/room/mesh details
- Add setControlsEnabled(enabled) to toggle OrbitControls
- Dispatch 'floorchange' event from showFloor()
- Wire up furnitureclick in index.html to show item info
Renderer improvements:
- Configure shadow camera frustum to cover full house (was default -5..5)
- Add geometry and material caching to reduce GPU allocations
- Add proper disposal of Three.js objects on floor switch (fix memory leak)
- Add error handling for fetch failures with custom event dispatch
- Add room labels as sprites floating in each room
- Support wall-mounted furniture Y positioning via position.y
- Use cached highlight materials instead of mutating shared materials
- loadCatalog() and loadDesign() methods on HouseRenderer
- Builds Three.js meshes from catalog part definitions (box/cylinder)
- Places furniture in room-local coordinates with rotation
- Furniture clears and re-renders on floor switch
- index.html loads catalog and design after house data
renderer.js: HouseRenderer class that loads house JSON and renders
rooms as 3D geometry - walls with door/window cutouts, floors with
material colors, translucent ceilings, orbit camera controls, room
click selection and highlighting.
index.html: Viewer page with sidebar showing floor switcher and
room list with areas. Click rooms in 3D or sidebar to focus camera.
Uses Three.js via CDN importmap (no build step needed).
