Files
editor/packages/viewer
7309fc8f1d editor: stabilize floorplan and camera interactions (#545)
* Add roof surface placement support for items

Items (e.g. solar panels) can now be placed on sloped roof surfaces.
The placement system computes euler rotation from the roof surface
normal so items sit flush on the slope instead of going inside.

- Add roofStrategy to placement-strategies with enter/move/click/leave
- Wire roof:enter/move/click/leave events in the placement coordinator
- Add calculateRoofRotation in placement-math using surface normals
- Support full 3D cursor rotation for sloped surfaces
- Items on roofs are parented to the level with world-space rotation

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fixed conflict

* fix(viewer): keep outlines during camera movement

* fix(editor): prevent floorplan clipping during rotation

* fix(editor): keep compass rotation in sync

Stream live headings in 2D and 3D, and defer restoring the compositor rotation preview until the committed floor-plan state is ready to paint so pointer release cannot snap back.

* fix(editor): stabilize floorplan and camera sync

* fix floorplan registry scale subscriptions

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
2026-07-24 12:33:58 -04:00
..

@pascal-app/viewer

3D viewer component for Pascal building editor.

Installation

npm install @pascal-app/core @pascal-app/viewer @pascal-app/editor @pascal-app/nodes

Peer Dependencies

npm install next react react-dom three @react-three/fiber @react-three/drei lucide-react zustand

What's Included

  • Viewer Component - WebGPU-powered 3D viewer with camera controls
  • Node Rendering Runtime - Registry-driven dispatch for node renderers supplied by @pascal-app/nodes
  • 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 { loadPlugin } from '@pascal-app/core'
import { builtinPlugin } from '@pascal-app/nodes'
import { Viewer } from '@pascal-app/viewer'
import { useEffect, useState } from 'react'

const registryReady = loadPlugin(builtinPlugin)

function App() {
  const [ready, setReady] = useState(false)

  useEffect(() => {
    void registryReady.then(() => setReady(true))
  }, [])

  if (!ready) return null

  return (
    <div style={{ width: '100vw', height: '100vh' }}>
      <Viewer />
    </div>
  )
}

Load the built-in plugin once, before mounting any viewer. Without it, the registry has no node definitions and scene nodes cannot render. Host-provided plugins use the same loadPlugin API.

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