Full pack · 4×4 km

Sobótka and ŚlężaFree demo

Name: Sobótka and Ślęża 3D city model, free demo
Creator: Ontic Cities
License: https://ontic.city/cities/sobotka/#licence

16 km², all layers, all formats. About 770 MB.

Sobótka and Ślęża 3D city model, LOD2.2, Aerial view

4×4 kmAerial view

What is in the archive

1,669 buildings at LOD2.2, plus terrain, vegetation, orthophoto and centrelines across 16 km². The buildings were reconstructed from the 2019 national LiDAR campaign at 4 pts/m². All data except 3D Tiles is stored in EPSG:2180. The bundled README covers units, the georeferencing specification and import into Unreal Engine, Cesium, DCC tools and GIS.

ontic-free-demo-sobotka-4x4.zip472 files · 1.51 GB unpacked

README.mdUnits, the georeferencing contract, import routes for Unreal Engine, Cesium, DCC tools and GIS.11 KB
LICENSE.mdThe licence for this pack, the same text as on this page.4 KB
LICENSE.pl.mdThe Polish text of the licence for this pack.5 KB
CREDITS.mdSource attribution, survey vintage per sheet.1 KB
CREDITS.pl.mdThe Polish text of the source attribution.2 KB
NOTICES.mdData sources and the access basis for each.2 KB
data-dictionary.mdAn explanation of every building attribute.11 KB
georeference.jsonMachine-readable georeferencing contract: EPSG:2180 anchor, vertical datum, units, cell grid.3 KB
manifest.jsonPack id, source vintages, per-layer file lists, quality metrics.85 KB
usd/A single-file scene covering the full extent.70 files · 235 MB
- pack.usdaReferences every cell with its offset; one file opens the full extent.20 KB
- cells/<cell>/cell.usdaThe cell's stage, referencing its ground and building layers.×16 · 4 MB
- cells/<cell>/ground.usdcGround mesh per cell.×16 · 226 MB
- cells/<cell>/lod12.usdcBuildings at LOD1.2, block models.×12 · 1 MB
- cells/<cell>/lod13.usdcBuildings at LOD1.3, block models with height steps.×12 · 1 MB
- cells/<cell>/lod22.usdcBuildings at LOD2.2, roof shapes from LiDAR.×12 · 2 MB
- shared/materials.usdaMaterials shared across cells.8 KB
3dtiles/Streaming buildings for Cesium and web viewers.6 files · 3 MB
- tileset.jsonEntry point for any 3D Tiles 1.1 client.1 KB
- t/<tile>.glbGLB tile payloads, quadtree.×4 · 3 MB
- metadata/cjindex-metadata.city.jsonTileset metadata.1 KB
cityjson/Buildings with full attributes, all LoDs, EPSG:2180.4 files · 9 MB
- <tile>.city.jsonlCityJSONSeq, one feature per line.×4 · 9 MB
fbx/Per-cell meshes, binary FBX, cell-local origins.52 files · 237 MB
- …_<cell>_GROUND.fbxGround mesh; roads, rail, water and vegetation as material regions.×16 · 218 MB
- …_<cell>_LOD12.fbxBuildings at LOD1.2, block models.×12 · 6 MB
- …_<cell>_LOD13.fbxBuildings at LOD1.3, block models with height steps.×12 · 6 MB
- …_<cell>_LOD22.fbxBuildings at LOD2.2, roof shapes from LiDAR.×12 · 7 MB
obj/The same meshes as OBJ, with MTL companions.69 files · 691 MB
- materials.mtlShared material library.1 KB
- …_<cell>_GROUND.objGround mesh; roads, rail, water and vegetation as material regions.×16 · 686 MB
- …_<cell>_GROUND.mtlMaterial-region definitions for the ground mesh.×16 · 35 KB
- …_<cell>_LOD12.objBuildings at LOD1.2, block models.×12 · 1 MB
- …_<cell>_LOD13.objBuildings at LOD1.3, block models with height steps.×12 · 1 MB
- …_<cell>_LOD22.objBuildings at LOD2.2, roof shapes from LiDAR.×12 · 3 MB
glb/The same meshes in binary glTF format.69 files · 219 MB
- materials.jsonMaterial slot names and base tints.3 KB
- …_<cell>_GROUND.glbGround mesh; roads, rail, water and vegetation as material regions.×16 · 185 MB
- …_<cell>_GROUND_PROXY.glbSimplified ground proxy with a 4 m error budget, for fast previews.×16 · 11 MB
- …_<cell>_LOD12.glbBuildings at LOD1.2, block models.×12 · 6 MB
- …_<cell>_LOD13.glbBuildings at LOD1.3, block models with height steps.×12 · 7 MB
- …_<cell>_LOD22.glbBuildings at LOD2.2, roof shapes from LiDAR.×12 · 10 MB
heightmaps/Terrain heightfield, 1 m grid, per cell.17 files · 10 MB
- terrain_<cell>.png16-bit PNG per cell.×16 · 10 MB
- heightmaps.jsonDecode window (height floor and span) and cell layout.7 KB
masks/Per-class coverage rasters, 1 m grid, per cell.81 files · 453 KB
- terrain_<cell>_roads.pngRoads.×16 · 187 KB
- terrain_<cell>_rail.pngRail.×16 · 24 KB
- terrain_<cell>_tram.pngTram tracks.×16 · 17 KB
- terrain_<cell>_water.pngWater.×16 · 81 KB
- terrain_<cell>_vegetation.pngVegetation.×16 · 131 KB
- masks.jsonCell layout sidecar.14 KB
ortho/National orthophoto, EPSG:2180, cloud-optimised GeoTIFF.64 files · 92 MB
- ortho_<cell>.tifOne GeoTIFF per tile.×64 · 92 MB
vectors/3D road and rail centrelines, with elevations sampled from the included surfaces.5 files · 5 MB
- centrelines.gpkgGeoPackage, EPSG:2180.1 MB
- centrelines_roads.fgbFlatGeobuf, roads.988 KB
- centrelines_rail.fgbFlatGeobuf, rail.8 KB
- centrelines_local.geojsonCell-local coordinate frame for use in engines.3 MB
- centrelines.jsonAttribute dictionary and notes on elevation sources.13 KB
trees/Tree instances per cell: position, height and canopy tint.16 files · 3 MB
- trees_<cell>.jsonOne JSON file per cell.×16 · 3 MB
previews/Preview renders of the pack, 2560 px wide.10 files · 7 MB
- …_<shot>_web_2560.jpgOne JPEG per view.×10 · 7 MB

Checksum

SHA-256: fe9d20ad59a7cd7afe68680d1321c58f5c5809bb1ddb4f46621d06f5169cf303
Digest file: Download →

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The text is included in the archive as LICENSE.md; a copy appears below for review before downloading.

Ontic Cities Free Demo License, version 0.1

This license governs the free demo pack "Sobótka 4×4 km" (the "Pack") obtained from ontic.city or an official Ontic Cities listing. By downloading or using the Pack, the Licensee accepts these terms.

1. Definitions. "Licensor" means Ontic Cities. "Licensee" means the natural person who obtained the Pack or, where it was obtained on behalf of an organization, that organization together with its employees and contractors acting on its projects. "End Product" means a work that incorporates the Pack's assets or data, including games, film, television, and visual-effects productions, still imagery and renders, architectural visualization, simulation and training applications, virtual- and augmented-reality experiences, interactive experiences, broadcast, and print.

2. Grant. Subject to the terms of this license, the Licensor grants the Licensee a non-exclusive, perpetual, worldwide, royalty-free license, at no charge, to use the Pack as set out in Section 3. The Pack's files remain the property of the Licensor. The Licensee owns the End Products it creates. These are the same use rights the paid Ontic Cities city packs carry.

3. Permitted use. The Licensee may: (a) use, modify, and combine the Pack's assets and data in any number of End Products, commercial or non-commercial; (b) distribute the assets and data within End Products in compiled or otherwise non-extractable form; and (c) permit contractors to work with the Pack on the Licensee's projects under these terms.

4. Prohibited use. The Licensee may not: (a) redistribute, resell, sublicense, or publicly host the Pack's files or data as files or data, whether raw, converted, or trivially modified; (b) distribute any product from which the Pack's meshes, heightmaps, imagery, or vector data can be extracted in usable form; (c) use the Pack to build or seed a competing dataset, asset library, or map product; or (d) use the Pack as training data for a generative-AI model made available to third parties. The Pack is available to anyone free of charge at ontic.city; third parties are to be referred to that page rather than supplied with copies.

5. Attribution. End Products do not require an on-screen credit. The Licensee shall keep CREDITS.md and NOTICES.md alongside the Pack's files wherever the files themselves are stored or moved. Where a published End Product reproduces the source imagery substantially (for example, the orthophoto visible as a map or texture), the data credit from CREDITS.md shall be included in the End Product's credits or documentation where practicable.

6. Source data. The Pack is derived from Polish public geodata: datasets of the national geodetic and cartographic resource provided by the Head Office of Geodesy and Cartography (GUGiK), processed by the Licensor. The source authorities are not responsible for, and do not endorse, the processed content. The Pack contains no personal data. Survey vintages and retrieval dates are stated in manifest.json and CREDITS.md.

7. No warranty. The Pack is provided "as is". Geometry and imagery derive from public survey data with the stated vintages. The Licensor makes no warranty of positional accuracy, completeness, currency, or fitness for a particular purpose.

8. Limitation of liability. The Licensor's total liability under this license is capped at the amount the Licensee paid for the Pack.

9. Termination. This license ends if the Licensee materially breaches it and does not cure the breach within 30 days of notice. Sections 5 through 8 survive termination.

10. Marketplace terms. Where the Pack is obtained through a marketplace whose own license governs the download, that license controls and this document is informational.

The text is included in the archive as CREDITS.md; the access basis for each source is stated in NOTICES.md.

Credits and attribution

Contains processed public-sector data from the Polish national geodetic and cartographic resource: orthophoto imagery, LiDAR point clouds, NMT elevation models, and BDOT10k topographic data provided by the Head Office of Geodesy and Cartography (Główny Urząd Geodezji i Kartografii, GUGiK). The source data has been processed by Ontic Cities; the source authorities bear no responsibility for the processed content.

Source survey vintages

Layer	Campaign / vintage	Detail
LiDAR point cloud	2019 (index publication year)	GUGiK series 72925, 4 pts/m² nominal, 20 sheets
Orthophoto	2025	25 cm GSD, RGB, 6 sheets: M-33-46-A-d-2-1 (2025); M-33-46-A-d-2-2 (2025); M-33-46-A-d-2-3 (2025); M-33-46-A-d-2-4 (2025); M-33-46-B-c-1-1 (2025); M-33-46-B-c-1-3 (2025)
NMT elevation model	2020–2023	27 sheets, per-sheet years in `manifest.json`
BDOT10k (building footprints, roads, rail, water, vegetation, nature points)	continuously maintained	powiat TERYT 0223, state as retrieved

Retrieval dates

BDOT10k, LiDAR point cloud, NMT elevation model, Orthophoto: 2026-09-25

Polish attribution (dla listingów polskojęzycznych)

Zawiera przetworzone dane państwowego zasobu geodezyjnego i kartograficznego udostępnione przez Główny Urząd Geodezji i Kartografii (GUGiK). Dane źródłowe zostały przetworzone; organy udostępniające nie ponoszą odpowiedzialności za treść przetworzoną.

Questions about the pack: hello@ontic.city