Core Technologies
CesiumJS
Apache License 2.0
An open source JavaScript library for world-class 3D globes and maps.
Copyright 2011-2022 Cesium Contributors
https://cesium.com/platform/cesiumjs/
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Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Three.js
MIT License
JavaScript 3D library for creating and displaying animated 3D computer graphics in a web browser.
Copyright © 2010-2025 three.js authors
https://threejs.org/
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The MIT License
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.
Google Earth Photorealistic 3D Tiles
Google Terms of Service
Photorealistic 3D Tiles from Google Earth used for realistic global visualization.
Google Maps Platform Documentation
APIs & Services
Sunrise-Sunset.org API
Free with Attribution
Free API providing sunset and sunrise times for a given latitude and longitude.
The sunrise and sunset API can be used free of charge. We require attribution with a link.
https://sunrise-sunset.org/api
Firebase
Apache License 2.0
Google's mobile and web application development platform for authentication and backend services.
Copyright 2017 Google LLC
https://firebase.google.com/
Open Source Tools
Blender
GNU GPL v3
Open source 3D creation suite used server-side for 3D model format conversion.
Copyright © Blender Foundation
https://www.blender.org/
Note: Blender is used only for server-side processing. The GPL license does not affect the licensing of World Studio or user-generated content.
Python
PSF License
Programming language used for server-side scripting and Blender automation.
Copyright © Python Software Foundation
https://www.python.org/
Special Thanks
We appreciate the open‑source community and service providers that make modern software possible. If we missed anything, please contact us.