Windows and doors build all visuals in their viewer systems from module-global materials, so this threads per-node slot materials + userData.slotId tags through those builders without restructuring them: - window: 'frame' + 'glass' slots. door: 'panel' (body = casing + leaf) + 'glass'; the opening reveal keeps its own material. - Each system captures per-frame viewer state, then updateWindow/DoorMesh points the builder-facing base/glass materials at the node's resolved slot override (recomputed per node, so the next node resets without a restore). Meshes are auto-tagged in the shared addBox/addShape helpers by which material they got. - Textures-off still collapses to the role material (escape hatch); a slot override only applies in colored mode. - Editing a referenced scene material re-dirties the window/door (these systems aren't covered by GeometrySystem's scene-material re-dirty). - New paint capabilities (resolve role from userData.slotId, preview by userData.slotId) + capabilities.slots; window/door dropped from the paint disabled list. Shared previewSlotByUserData helper. Defaults unchanged: unpainted windows/doors render exactly as before (the slot fallback is the existing frame/glass material), so no visual regression. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
@pascal-app/core
Core library for Pascal 3D building editor.
Installation
npm install @pascal-app/core
Peer Dependencies
npm install react three @react-three/fiber @react-three/drei
What's Included
- Node Schemas - Zod schemas for all building primitives (walls, slabs, items, etc.)
- Scene State - Zustand store with IndexedDB persistence and undo/redo
- Systems - Geometry generation for walls, floors, ceilings, roofs
- Scene Registry - Fast lookup from node IDs to Three.js objects
- Spatial Grid - Collision detection and placement validation
- Event Bus - Typed event emitter for inter-component communication
- Asset Storage - IndexedDB-based file storage for user-uploaded assets
Usage
import { useScene, WallNode, ItemNode } from '@pascal-app/core'
// Create a wall
const wall = WallNode.parse({
points: [[0, 0], [5, 0]],
height: 3,
thickness: 0.2,
})
useScene.getState().createNode(wall, parentLevelId)
// Subscribe to scene changes
function MyComponent() {
const nodes = useScene((state) => state.nodes)
const walls = Object.values(nodes).filter(n => n.type === 'wall')
return <div>Total walls: {walls.length}</div>
}
Node Types
SiteNode- Root containerBuildingNode- Building within a siteLevelNode- Floor levelWallNode- Vertical wall with optional openingsSlabNode- Floor slabCeilingNode- Ceiling surfaceRoofNode- Roof geometryZoneNode- Spatial zone/roomItemNode- Furniture, fixtures, appliancesScanNode- 3D scan referenceGuideNode- 2D guide image reference
Systems
Systems process dirty nodes each frame to update geometry:
WallSystem- Wall geometry with mitering and CSG cutoutsSlabSystem- Floor polygon generationCeilingSystem- Ceiling geometryRoofSystem- Roof generationItemSystem- Item positioning on walls/ceilings/floors
License
MIT