Afterhours - adapted Tokyo building geometry

Source: Project PLATEAU / Ministry of Land, Infrastructure, Transport and
Tourism, Japan. "3D City Model Minato-ku (2025)".
https://www.geospatial.jp/ckan/dataset/plateau-13103-minato-ku-2025
https://www.mlit.go.jp/plateau/

Original open 3D city data is copyrighted by the relevant local government,
as described in the PLATEAU site policy.
https://www.mlit.go.jp/plateau/site-policy/

License: Creative Commons Attribution 4.0 International.
https://creativecommons.org/licenses/by/4.0/
Section 3 of the PLATEAU site policy permits use under CC BY 4.0 as an
alternative compatible with Public Data License 1.0.

This is an independent adaptation, not an official MLIT visualization.
Changes made by Afterhours:
- Selected a bounded subset of the Minato 2025 LOD3 tileset. Individual
  buildings retain their actual source level: LOD1, LOD2 or LOD3.
- Converted ECEF coordinates to a scaled local frame, flattened building
  foundations to the authored ground, and omitted volumes that interfere
  with the original park, animated streets or Tokyo Tower composition.
- Repositioned and proportionally fitted 27 selected source buildings to
  the existing foreground composition; these are not their GIS locations.
- Welded and quantized geometry, compressed local buffers, resized and
  repacked texture atlases, and derived approximate glass masks.
- Rebuilt close-range cladding, glazing, window interiors, frames and
  rooftop equipment. These details and all night illumination are
  authored approximations, not surveyed appearance or live occupancy.
- Seven foreground buildings now use independently modeled,
  reference-inspired silhouettes instead of the selected survey meshes.
  Their unused source data remains in the package for reproducibility.
- Additional near-district infill buildings, parking/service courts and
  their contents are authored additions, not part of the survey data.

manifest.json records the exact source URL and SHA-256 of every imported
tile. No city panorama or skyline photograph is used as a backdrop.

The separate tower, temple, roads, traffic, shop signs, plants and room
remain authored geometry. CC0 surface-map sources are credited in
../room/ATTRIBUTION.txt. This credit does not imply source endorsement.