# Third-party assets

- Three.js 0.186.1: https://github.com/mrdoob/three.js — MIT license, copied in assets/THREE-LICENSE.txt. Bundled into game.js.
- Earth color texture: Three.js r160 example asset, https://github.com/mrdoob/three.js/blob/r160/examples/textures/planets/earth_atmos_2048.jpg. Downloaded unchanged into assets/earth.jpg, then embedded by the build. Distributed from the Three.js example repository; retained with its project attribution.
- esbuild: development-only build dependency, MIT license in its installed package.
- Ship, station, hull panel textures, interface and pixel graphics are generated locally by this project.

- Mars map: NASA 3D Resources, `Images and Textures/Mars/Mars.jpg`, https://github.com/nasa/NASA-3D-Resources/tree/master/Images%20and%20Textures/Mars. Downloaded unchanged and embedded in the game.
- Asteroid surface: NASA 3D Resources Phobos map, `Images and Textures/Mars - Phobos/Mars - Phobos.jpg`, https://github.com/nasa/NASA-3D-Resources/tree/master/Images%20and%20Textures/Mars%20-%20Phobos. Used as a color and relief reference on fictional asteroid meshes; this does not represent accurate Phobos geometry.
- NASA's repository describes these resources as free and without copyright: https://github.com/nasa/NASA-3D-Resources. Usage guidelines: https://www.nasa.gov/nasa-brand-center/images-and-media/. No NASA endorsement is implied.

## NASA 3D Resources

Spacecraft and asteroid models in `assets/models/` come from NASA 3D Resources
(https://github.com/nasa/NASA-3D-Resources), published by NASA as free and
without copyright: International Space Station, Mars Reconnaissance Orbiter,
TDRS, Landsat 8, CALIPSO, Deep Space 1, Aqua, CloudSat, and asteroid 101955
Bennu (1999 RQ36). Use follows NASA's media usage guidelines
(https://www.nasa.gov/nasa-brand-center/images-and-media). NASA does not
endorse this game, and no NASA insignia or logos are used.

## Draco decoder

`assets/draco/` contains the Google Draco mesh decoder (Apache License 2.0) as
distributed with three.js, used to decompress the NASA models.

## Fonts

DM Sans and Space Mono, SIL Open Font License 1.1 (licence texts in
`assets/fonts/`).