Explore real world maps in S&Box.

This is still a pretty rough prototype, but I'd like to think it demonstrates some potential.

- High resolution (1 meter) terrain data. In the demo it is exaggerated by 2x for effect.
- Simple handling of roads. Considers lane count, and whether a road is one-way or a sidewalk.
- Very simple handling of buildings. Different materials are applied depending on the building's size.

OpenStreetMap was used to construct buildings, roads, and other features. The copyright for this data is owned by OpenStreetMap contributors. OpenStreetmap is available under the Open Database License.
https://www.openstreetmap.org/copyright

OpenStreetMap and other map data is transformed using the following program. This library uses several other open source libraries.
https://github.com/MDFL64/cartographer-cli

Elevation data is provided by the United States Geological Survey. This data is availabe free for charge and without use restrictions.
https://www.usgs.gov/3d-elevation-program/

Textures were created using Material Maker.
https://www.materialmaker.org/