The X3D Geospatial component provides support for geographic and geospatial applications that includes the ability to utilize double-precision geospatial coordinates and to handle large multi-resolution terrain databases.
These examples illustrate capabilities provided by the X3D Abstract Specification Geospatial Component. Significant additional work is being pursued by the X3D Earth Working Group Executive Summary and is documented on the X3D Earth Working Group Wiki.
The supporting Geospatial Component - X3D Earth chapter slideset is available online via X3dGraphics.com.
This viewpoint slideshow is online at https://www.web3d.org/x3d/content/examples/Basic/Geospatial/viewpointSlideshow.html
Viewpoint image version history at https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/Basic/Geospatial/_viewpoints