DAYSIDE
CREDITS

Credits and notices.

The planet shown on the front page, parts of how it is drawn, and the data behind the documentation's examples come from other people's work. Their licences and attributions are here in full.

The planet

The planet shown on the front page and in the example plates was generated in Gleba, with its climate simulated in World Climate Lab. Gleba is used with its developer's permission.

Dayside synthesised the fine terrain detail and rendered the colour. The planet itself, its continents and its climate are the work of those tools.

Terrain model

Section terrain synthesis at 90 m and 30 m uses terrain-diffusion by Alexander Goslin, and its 30 m and 90 m model weights. The source and both model cards are MIT licensed. Paper: Alexander Goslin (2026), InfiniteDiffusion: Bridging Learned Fidelity and Procedural Utility for Open-World Terrain Generation, SIGGRAPH Conference Papers '26.

MIT License

Copyright (c) 2025 Alexander Goslin

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.

Night lights

Night-light patterns derived from NASA Black Marble 2016 (Credit: NASA). Not endorsed by NASA.

Where the lights fall on the planet comes from its own settlement model. Black Marble supplies the look of the patterns only.

Settlement model

The settlement scenario was fitted to the datasets below. Dayside derived curves, coefficients and per-person totals from them and redistributes none of their data. The data providers do not endorse Dayside.

  • Era land-use totals: HYDE 3.3, Klein Goldewijk (2024), Utrecht University, CC BY 4.0.
  • Settlement sizes and population response: GHS-POP R2023A and GHS-UCDB R2024A, © European Union 1995-2026, CC BY 4.0.
  • Built-up totals and curve shape: ESA WorldCover 10 m 2021 v200, CC BY 4.0. © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium.
  • Seed places: GeoNames (geonames.org), CC BY 4.0.

Earth examples in the documentation

  • Elevation and bathymetry: NOAA ETOPO 2022 v1, public domain (CC0 1.0).
  • Honshu land elevation: AWS Terrain Tiles, from NASA/USGS SRTM, USGS/NGA GMTED2010 and NOAA ETOPO1.
  • Rainfall: CHELSA-bioclim v2.1 BIO12, CC0 1.0 (Karger et al. 2017).
  • Climate classes: Beck et al. Köppen-Geiger v2 (1991 to 2020), CC BY 4.0 (Beck et al. 2023), resampled and recoloured for Dayside.
  • Earth land cover: ESA WorldCover 2021 v200, CC BY 4.0, counted into per-class fractions for each cell. © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium.

Atmosphere

The globe's sky, haze and twilight use Eric Bruneton's precomputed atmospheric scattering, through the WebGL2 port in jeantimex/precomputed_atmospheric_scattering. The shader library and the precomputed Earth lookup tables both come from that port, the same ones the Dayside app uses. The port is MIT licensed. The underlying implementation and shader code are BSD-3-Clause, and its copyright notice is also kept inside the shader source this site serves.

Copyright (c) 2018 Eric Bruneton
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.
3. Neither the name of the copyright holders nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
THE POSSIBILITY OF SUCH DAMAGE.
MIT License

Copyright (c) 2025 Su

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.

Typefaces

Newsreader, Public Sans and IBM Plex Mono are used under the SIL Open Font License 1.1, and are served from this domain.

NOTICES FOR THE APP ITSELF SHIP WITH THE APP