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Sources and modifications

This public browser model depicts the approved nominal 750 m selection of Starý Spořilov, Prague. The model is a modified representation of the credited data. It is not a survey, an assertion of exact 2016 completeness or an endorsement by the data providers.

Buildings and terrain

datový podklad © IPR Praha — Creative Commons Attribution 4.0 International (CC BY 4.0).

Source: Institut plánování a rozvoje hlavního města Prahy. Municipal CityGML building geometry and terrain TIN, source sheets 5-4 and 5-3. Public source metadata: 3D buildings and terrain. The licensing association was recorded from the parent metadata; individual distribution license fields were blank.

Changes: clipped to the approved rotated selection, triangulated, transformed to local metric coordinates and colored for inspection. Blender Z-up was converted to glTF Y-up; inspection cameras and the boundary ribbon were excluded; materials were converted to rough PBR equivalents. No building/terrain elevation edits or simplification. The native scene, boundary and exported GLB remain unchanged during deployment preparation.

Street and path context

© OpenStreetMap contributors — data available under the Open Database License (ODbL), copyright and source information. Full ODbL 1.0 license.

The Overpass snapshot was acquired on 2026-10-11 at 08:48:21 UTC. Centerlines and perimeters are displayed as symbolic 4 m street and 1.2 m path ribbons draped 0.15 m above the source terrain. They are a produced representation, not surveyed pavement, sidewalks or curbs. The municipal layers retain their separate license.

Browser software

The compiled viewer includes Three.js 0.186.1 and Vite's module-preload helper. Their MIT notices follow. Source repository access remains private; the deployed JavaScript, rendered data and GLB are public and downloadable.

Three.js

The MIT License

Copyright © 2010-2026 three.js authors

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.

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.

Vite helper

# Vite core license
Vite is released under the MIT license:

MIT License

Copyright (c) 2019-present, VoidZero Inc. and Vite contributors

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.

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.

There are no external map tiles, account system, backend, cookies or application telemetry. Hosting infrastructure still receives ordinary web requests. Source limitations include coarse terrain, simplified streets, conservative collision proxies and intentionally stylized animation; the character may be tiny at the furthest camera distance.