설명
- Generator: DEM Net Elevation API
- Mesh reduction: geometry3Sharp (GradientSpace, Ryan Schmidt) BSL 1.0 License
- Digital Elevation Model: GEBCO Compilation Group (2019) GEBCO 2019 Grid (doi:10.5285/836f016a-33be-6ddc-e053-6c86abc0788e)
- Imagery: MapBox Light