Earth texture credits — OTHERSPACE v017

Creator: Solar System Scope / INOVE
Source: https://www.solarsystemscope.com/textures/
License: Creative Commons Attribution 4.0 International (CC BY 4.0)
https://creativecommons.org/licenses/by/4.0/

Source files: 8k_earth_daymap.jpg, 8k_earth_clouds.jpg,
2k_earth_specular_map.tif, 2k_earth_nightmap.jpg.
The provider describes the maps as derived from NASA elevation and imagery data,
including Blue Marble, with colour adjustments. These are composite render maps,
not a current live satellite view.

Modifications for this project: day and clouds resized to 4096x2048;
specular/ocean and night retained at 2048x1024; converted to WebP quality 90.
The cloud and ocean images are used as linear data masks. Day and night use sRGB.
Lighting, cloud shadow approximation, ocean specular, atmosphere and compositing
are implemented separately in the webpage. No endorsement is implied.