Wassim SAMADandClaude Opus 4.7
9a481f2511
Symptom: a shelf placed on a level with a raised slab underneath visually clipped through it — `ItemSystem` lifted items onto slabs, but shelves (and other floor-placed registry kinds) had no equivalent path. Fix: lift the slab-elevation logic out of `ItemSystem` into a generic `<FloorElevationSystem>` keyed off a new `capabilities.floorPlaced` config. Any kind that opts in declares a `footprint(node)` (dimensions + rotation used to query overlapping slabs) and an optional `applies` predicate (skips items whose `asset.attachTo` is wall / ceiling). The new system runs at frame priority 1 so its `mesh.position.y` override lands before `ItemSystem` / `GeometrySystem` (priority 2) clear the dirty mark. The spatial-grid sync's `markNodesOverlappingSlab` also dropped its hardcoded `item` branch in favour of an iteration over every registered kind that declares `floorPlaced` — so any new floor-placed kind picks up slab-driven re-elevation automatically. Tagged kinds: - `item` — `footprint = getScaledDimensions`, `applies = !asset.attachTo` - `shelf` — `footprint = (w, h, d)` - `column` — `footprint = (w, h, d)` - `spawn` — `footprint = (0.6, 1.8, 0.6)` (marker) `ItemSystem` retains only the wall-side z-offset block (`mesh.position.z = wallThickness / 2`). The elevation block + its `getScaledDimensions` / `resolveLevelId` / `spatialGridManager` imports moved to the generic system. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
@pascal-app/viewer
3D viewer component for Pascal building editor.
Installation
npm install @pascal-app/viewer @pascal-app/core
Peer Dependencies
npm install react three @react-three/fiber @react-three/drei
What's Included
- Viewer Component - WebGPU-powered 3D viewer with camera controls
- Node Renderers - React Three Fiber components for all node types
- Post-Processing - SSGI (ambient occlusion + global illumination), TRAA (anti-aliasing), outline effects
- Level System - Level visibility and positioning (stacked/exploded/solo modes)
- Wall Cutout System - Dynamic wall hiding based on camera position
- Asset URL Helpers - CDN URL resolution for models and textures
Usage
import { Viewer, useViewer } from '@pascal-app/viewer'
import { useScene } from '@pascal-app/core'
function App() {
return (
<div style={{ width: '100vw', height: '100vh' }}>
<Viewer />
</div>
)
}
Custom Camera Controls
import { Viewer } from '@pascal-app/viewer'
import { CameraControls } from '@react-three/drei'
function App() {
return (
<Viewer selectionManager="custom">
<CameraControls />
</Viewer>
)
}
Viewer State
import { useViewer } from '@pascal-app/viewer'
function ViewerControls() {
const levelMode = useViewer(s => s.levelMode)
const setLevelMode = useViewer(s => s.setLevelMode)
const wallMode = useViewer(s => s.wallMode)
const setWallMode = useViewer(s => s.setWallMode)
return (
<div>
<button onClick={() => setLevelMode('stacked')}>Stacked</button>
<button onClick={() => setLevelMode('exploded')}>Exploded</button>
<button onClick={() => setWallMode('cutaway')}>Cutaway</button>
<button onClick={() => setWallMode('up')}>Full Height</button>
</div>
)
}
Asset CDN Helpers
import { resolveCdnUrl, ASSETS_CDN_URL } from '@pascal-app/viewer'
// Resolves relative paths to CDN URLs
const url = resolveCdnUrl('/items/chair/model.glb')
// → 'https://pascal-cdn.wawasensei.dev/items/chair/model.glb'
// Handles external URLs and asset:// protocol
const externalUrl = resolveCdnUrl('https://example.com/model.glb')
// → 'https://example.com/model.glb' (unchanged)
Features
- WebGPU Rendering - Hardware-accelerated rendering via Three.js WebGPU
- Post-Processing - SSGI for realistic lighting, outline effects for selection
- Level Modes - Stacked, exploded, or solo level display
- Wall Cutaway - Automatic wall hiding for interior views
- Camera Modes - Perspective and orthographic projection
- Scan/Guide Support - 3D scans and 2D guide images
License
MIT