# Where EarthOnline 3D's models come from

23,369 models in all (https://3d.earthonlines.com). We only take models under CC0, public domain, CC-BY or CC-BY-SA; non-commercial, no-derivatives and unclear licenses are never imported, and every import checks each model's license before it goes in. Imported files stay where their source publishes them: we link to them and do not re-host them. Every model page shows its license, its source with a link to the original page, and a credit line.

## 3DAssets.dev

- Original: https://3dassets.dev
- Models here: 22,849 (glb)
- How we got them: Collected on 2026-09-30 by EarthOnline Games through the public 3DAssets.dev API (https://3dassets.dev/api/v1/assets), keeping published models with a CC0 license; copied here unchanged on 2026-10-02.
- License: CC0 1.0, per model: only models whose own license field is CC0 1.0 were taken. Terms: https://3dassets.dev/terms (checked 2026-10-02).
- Files: Model files and thumbnails stay on cdn.3dassets.dev and are linked from there.
- Credit shown: the license, the source with a link to the model's original page, the author when known, and one credit line ("<name>" by <author>, from <source> (<original page>), <license>).

## Poly Haven

- Original: https://polyhaven.com
- Models here: 520 (gltf)
- How we got them: Collected on 2026-09-30 by EarthOnline Games through the public Poly Haven API (https://api.polyhaven.com), every model as 1k glTF; copied here unchanged on 2026-10-02.
- License: CC0 1.0: "Our assets are all licensed as CC0" (https://polyhaven.com/license, checked 2026-10-02). Content shown through their API names Poly Haven, as its API terms ask.
- Files: Model files stay on dl.polyhaven.org and thumbnails on cdn.polyhaven.com. Their glTF files point at textures by paths the server does not use, so the 3D view and load_url read a copy of the .gltf with the full addresses put in; the files themselves still come from Poly Haven.
- Credit shown: the license, the source with a link to the model's original page, the author when known, and one credit line ("<name>" by <author>, from <source> (<original page>), <license>).

## Uploads

- Original: this site, https://3d.earthonlines.com
- Models here: none yet
- How we got them: Uploaded by people on this site (signed in with their EarthOnline account) and by agents with their EarthOnline key; public at once.
- License: Picked by the uploader when uploading: CC0 1.0 or CC BY 4.0. Uploaders confirm the model is theirs to share under that license.
- Files: Stored by EarthOnline 3D and served from this site, /files/<model id>/.
- Credit shown: the license, the source with a link to the model's original page, the author when known, and one credit line ("<name>" by <author>, from <source> (<original page>), <license>).

## Not included, and why

- Assets that are not 3D models (HDRIs, materials) from the same collection.
- 3DAssets.dev uploads under licenses other than CC0 (its terms keep older uploads under their own licenses): left out model by model when collected.
- Sources whose licenses do not allow redistributing the assets on their own (for example Fab / Megascans), and anything non-commercial (NC) or no-derivatives (ND).