Files
editor/packages/viewer
f6ffb93a39 fix(export): unbreak bakes and STL/OBJ exports on malformed/placeholder meshes (#466)
- roof-system: replace BoxGeometry placeholders (initial swap + empty-roof
  merged shell) with a group-less degenerate geometry — a Box's 6 groups
  against the roof's 4-material array crashed GLTFExporter on every scene
  with a segment-less roof node (prod: 'reading isShaderMaterial'), and
  count-0 groups crash MeshBVH's packed-tree build.
- glb-export: sanitizeMaterialGroups pass repairs any mesh whose geometry
  groups don't line up with its material array before GLTFExporter runs.
- export-manager: give neutralised (attribute-less) meshes an empty position
  attribute before STL/OBJ export — both exporters read position.count
  unconditionally.
- bake-exporter: log the full error stack so the bake worker's console relay
  captures it in the job's error trail.
- viewer: host-controlled disablePostFx prop (Viewer → PostProcessing) that
  skips building the SSGI/denoise pipeline entirely; the ?disable=postFx URL
  flag previously only bypassed it per-frame while still allocating it.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 16:07:08 -04:00
..
2026-02-05 08:22:19 +09:00

@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