NEON LOFT：二维霓虹展示站与独立商户 CRM。当前首页使用原项目附带的城市夜景照片，下方保留来源与许可信息。

MIT License

Copyright (c) 2026 klmtseng

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

Bundled third-party assets (models, textures, images, video, audio) are NOT
covered by this license. Each keeps its original license as documented in
THIRD_PARTY_ASSETS.md.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.


# Third-Party Assets

A complete record of every external asset bundled in this project, the
source it came from, the date it was fetched, and the license under which
it was distributed at that time.

CC0 / public-domain assets do not *legally* require attribution. We still
record them here as a paper-trail in case the licensing of an upstream
source is ever questioned. Screenshots of license pages are kept under
`docs/asset-licenses/` when relevant.

## Polyhaven (CC0 1.0 Universal)

Polyhaven's policy: <https://polyhaven.com/license>
> "Everything on this site is licensed as CC0, which is effectively public
> domain.  You can use it for any purpose, including commercial use."

| Asset | Files | Fetched | URL |
|---|---|---|---|
| `leather_white` | `public/assets/textures/sofa/leather_white_diff_1k.webp` (+ `nor_gl`, `rough`; converted from original 1K JPGs) | 2026-06-15 | <https://polyhaven.com/a/leather_white> |
| `sofa_02` (Victorian tufted leather) | `public/assets/models/polyhaven/sofa_02/sofa_02_1k.gltf` + .bin + 5 textures | 2026-06-15 | <https://polyhaven.com/a/sofa_02> |
| `Ottoman_01` (black leather pouf) | `public/assets/models/polyhaven/Ottoman_01/Ottoman_01_1k.gltf` + .bin + 3 textures | 2026-06-15 | <https://polyhaven.com/a/Ottoman_01> |
| `ArmChair_01` (Victorian armchair) | `public/assets/models/polyhaven/ArmChair_01/ArmChair_01_1k.gltf` + .bin + 3 textures | 2026-06-15 | <https://polyhaven.com/a/ArmChair_01> |

## Wikimedia Commons (CC-BY / CC-BY-SA / public domain)

Photos fetched by `tools/streetlive/fetch_textures.py`. Each file is
post-processed (cropped + night-shifted) before bundling. The script
queries Wikimedia's `imageinfo` API to follow the canonical file URL on
`upload.wikimedia.org`.

| Asset (in repo) | Source file on Commons | Fetched | Licence at time of fetch |
|---|---|---|---|
| `public/assets/textures/street_live/cyberpunk_facade_a.jpg` | `Mode Gakuen Cocoon Tower in the evening with blue sky Tokyo Japan.jpg` | 2026-06-15 | CC-BY-SA 4.0 |
| `public/assets/textures/street_live/cyberpunk_facade_b.jpg` | `Taipei Taiwan Shin-Kong-Tower-03.jpg` | 2026-06-15 | CC-BY-SA 3.0 |
| `public/assets/textures/street_live/cyberpunk_facade_c.jpg` | `Petronas Towers at Night - from the base upwards.jpg` | 2026-06-15 | CC-BY-SA 4.0 |
| `public/assets/textures/street_live/train_livery_a.jpg` | `Seoul-metro-510-Banghwa-station-platform-20180914-173620.jpg` | 2026-06-15 | CC-BY-SA 4.0 |
| `public/assets/textures/street_live/train_livery_b.jpg` | `Tokyo Monorail 10000 2015-04.jpg` | 2026-06-15 | CC-BY-SA 4.0 |
| `public/assets/textures/street_live/city_aerial_night.jpg` (LED billboards) | `Shibuya_Crossing_at_night.jpg` | 2026-06-15 | CC-BY-SA 4.0 |
| `public/assets/textures/street_live/street_overlay_night.jpg` (street ground overlay) | `Drone shot with Tokyo Skytree in the distance at night.jpg` | 2026-06-15 | CC-BY-SA 4.0 |

Photographer credits and exact licence stamps are preserved on each
Commons file's description page (linked via `File:<name>` on
<https://commons.wikimedia.org>). When deploying publicly the project
must remain CC-BY-SA compatible or replace these assets.

### Wikimedia Commons video clips (fetched by `tools/streetlive/fetch_videos.py`)

Short clips used as outdoor holographic projections (`AD_FILES` in
`src/world/city.ts`). Each is downloaded full from Commons, ffmpeg-clipped
to ~20–25 s, scaled to 480p, re-encoded h264 ~600 kbps, stored as mp4.
Original webm sources are discarded after transcode.

| Asset (in repo) | Source file on Commons | Fetched | Licence |
|---|---|---|---|
| `public/assets/video/cc/cc_tokyo_night.mp4` | `First nights in Tokyo.webm` | 2026-06-16 | CC-BY 3.0 |
| `public/assets/video/cc/cc_highway_night.mp4` | `Cars driving at night.webm` | 2026-06-16 | CC-BY 3.0 |
| `public/assets/video/cc/cc_nasa_launch.mp4` | `Igniting the Booster Space Launch System - NASA.webm` | 2026-06-16 | NASA — public domain (U.S. Government work) |

## ambientCG (CC0 1.0 Universal)

ambientCG's policy: <https://ambientcg.com/list?category=&type=PhotoTexturePBR>
> "Everything on this site is licensed under CC0 1.0 Universal."

| Asset | Files | Fetched | Source pack |
|---|---|---|---|
| Wet asphalt diffuse | `public/assets/textures/street_live/asphalt_wet_diff.jpg` | 2026-06-15 | `Asphalt026A_1K-JPG.zip` |
| Concrete diffuse (rail beam + pylons) | `public/assets/textures/street_live/concrete_diff.jpg` | 2026-06-15 | `Concrete034_1K-JPG.zip` |

## The Metropolitan Museum of Art (Open Access — CC0)

The Met's Open Access program releases >470,000 images under CC0:
<https://www.metmuseum.org/about-the-met/policies-and-documents/open-access>

| Asset | Files | Fetched | URL |
|---|---|---|---|
| Various artworks (Hokusai, Hiroshige, Klimt, Van Gogh, Monet, Cezanne search results) | `public/assets/textures/mosaic_art/met-*.webp` | 2026-06-12 | <https://collectionapi.metmuseum.org> (live search API; images are CC0 only when the `isPublicDomain` flag is true on the object record) |
| Rotating gallery frames (paintings cycling on wall art) | runtime fetch in `props.ts` | continuous | same API as above |

The `met-*` filenames are **internal codenames, not the artwork's author**
(e.g. `met-vangogh.webp` is actually *The Outer Harbor of Brest* by Henri
Joseph van Blarenberghe, `met-monet.webp` is *The Forest in Winter at Sunset*
by Théodore Rousseau). The real titles and artists are recorded in
`public/assets/textures/mosaic_art/manifest.json` and surfaced in the
in-app credits panel.

## Project Gutenberg (Public Domain)

Project Gutenberg releases pre-1928 US public-domain books. The in-game
library reader (`/__book` proxy) streams chapters from these IDs:

| IDs | Where |
|---|---|
| 24264 / 23950 / 23962 / 23863 / 132 / 84 / 35 / 164 / 345 / 174 / 1661 / 2554 / 1184 / 2701 / 1342 / 996 / 1727 / 2680 | hardcoded in `src/lib/books.ts` |

## Google News RSS (third-party content, fair-use snippets)

The smart mirror's news ticker fetches Google News RSS via `/__news`
proxy. Headlines are short snippets and are used for atmospheric flavour
only, not stored. No commercial republication of the underlying news
articles is performed.

## Open-Meteo (CC-BY 4.0)

Smart mirror weather pulled from <https://open-meteo.com/>. Free for
commercial use; attribution required if data is redistributed in
processed form. We display the data live and do not redistribute.

## GeoJS (free IP geolocation)

Smart mirror uses <https://get.geojs.io/> for IP-based location lookup.
No API key required; service is free for personal and commercial use.

## YouTube via yt-dlp (DEV-ONLY)

`/__resolve` and `/__stream` in `vite.config.ts` use yt-dlp to fetch
YouTube progressive streams. **Dev-only**: these endpoints are not
deployed to Vercel (see project memory). Any production deploy must
direct users to a YouTube-compliant embed if YouTube content is needed.

## Internal assets (created in this project — copyright belongs to project owner)

These are listed for completeness but are not third-party.

- `public/assets/textures/lantern_mosaic*.webp` — procedurally generated by `tools/lantern/build_mosaic.py` (converted to WebP by `tools/webp_convert.py`)
- `public/assets/textures/desk_lantern_mosaic*.webp` — extracted from project owner's own photos (converted to WebP by `tools/webp_convert.py`)
- `public/assets/textures/mosaic_art/cat-*.png`, `abs-*.png` — procedurally generated by `tools/mosaic/build_art_cache.py`
- `public/assets/models/bar_lantern.glb`, `desk_lantern.glb` — Blender CLI builds (`tools/lantern/`)
- `public/assets/textures/backdrop/*` — AI panoramas generated to project owner's prompt per `docs/ASSET_REQUESTS.md`
- All in-code procedural textures in `src/world/room.ts` (`makeConcreteTexture`, `makeWallPanelTexture`, `makeBrushedMetalTexture`, etc.) — original code, no external source

## Excluded from this repository (gitignored, not redistributed)

- `public/assets/video/hoload_*.mp4` — CD Projekt Red Cyberpunk 2077 in-universe holo-ads. Used **locally only** during development to test the holo-TV cast pipeline; never committed, never deployed.
- `public/assets/music/viola/*` — project owner's family recordings.