The code for Cesium, our WebGL globe and map engine, is now publicly available on github, https://github.com/AnalyticalGraphicsInc/cesium. Cesium was previously named Geoscope.
We released it under the Apache 2.0 license to foster broad acceptance in both commercial and non-commercial applications.
The bottom-three levels of the client-side Cesium stack are in this code release: Core is number crunching, e.g., linear algebra and geometry; Renderer is higher-level WebGL constructs like shader programs, textures, and render states; and Scene is virtual-globe constructs like streaming high-resolution imagery, polyline rendering, etc. We expect to release the fourth-level in this stack for visualizing czml, our streaming JSON scene format, soon. For more information on the architecture see our WebGL Camp Orlando talk: http://www.seas.upenn.edu/~pcozzi/downloads/WebGLForDynamicVirtualGlobes.pdf.
To start using and contributing to Cesium, see our contributor’s guide, https://github.com/AnalyticalGraphicsInc/cesium/wiki/Contributor’s-Guide. We have an outstanding community of passionate developers, and are excited for other passionate developers to join us. See the roadmap for our future direction, https://github.com/AnalyticalGraphicsInc/cesium/wiki/Roadmap.
Cesium demos are still up at http://cesium.agi.com/.