Wassim SAMADandClaude Opus 4.8
0a7cbd2081
Add `GlbScene` — the viewer that renders a baked GLB artifact with no parametric scene graph, and finish the phase-1 export contract it consumes. Viewer (packages/viewer): - GlbScene: loads the artifact, drives a building → level → zone → node drill hierarchy on useViewer.selection. Room/zone picking resolves from the floor plane (ray ∩ floor + point-in-polygon), node picking uses a footprint test, so walls/ceilings/zone-helpers never skew or block selection. Level modes (stacked/exploded/solo), dollhouse (hide a focused floor's ceilings + roof so rooms are visible and pickable), reconstructed zone floor fills + gradient edge borders + room labels (faded, hover-brightened), baked door/window open clips, click-outside / empty-space deselect, and the shared outline post-FX. Exported as GlbScene/GlbLevel/GlbIdentity/GlbHover. - post-processing: composite the zone-pass tint into the base scene so rooms show whether or not SSGI is enabled (previously only added in the SSGI branch). Export contract (packages/editor/src/lib/glb-export.ts): - Convert WebGPU NodeMaterials to classic glTF-standard materials; decompress KTX2 maps via WebGPUTextureUtils so GLTFExporter can embed them. - Stamp name + extras identity (pascalId/kind/label/openable/clips), bake door/window open clips (loop:false), strip editor overlays (off-layer + invisible-material hitboxes) so cutouts aren't plugged. - Fix opaque-but-flagged-transparent materials (no spurious alphaMode=BLEND) and BackSide → FrontSide + winding flip (glTF has no back-face-only). - Force levels + zones visible and stamp level display names + zone polygons so every floor bakes and /viewer can reconstruct rooms and label the breadcrumb. Co-Authored-By: Claude Opus 4.8 (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