Cesium Version 1.21 Released


We are happy to announce the release of Cesium 1.21. This is mainly a bug fix release as we gear up for 1.22, which will be a major release with shadows.

Highlights include:

  • Added ability to import and export Sandcastle example using GitHub Gists. #3795
  • Added PolygonGraphics.closeTop, PolygonGraphics.closeBottom, and PolygonGeometry options for creating an extruded polygon without a top or bottom. #3879
  • Added support for polyline arrow material to CzmlDataSource #3860

For more details and the full list of changes, see the change log.

The new Sandcastle import/export feature in action.


We’ve announced plans for cesiumjs.com, a place to acquire, curate, and process 3D data. Read more about it or sign up for a chance to be part of the upcoming beta release.

Tech Articles

Cesium in Action


  • FOSS4G NA is May 2-5 in Raleigh, North Carolina. For Cesium-related events, see See You at FOSS4G NA.
  • 3D in the Cloud, sponsored by Autodesk, was April 27 in Washington, D.C. Patrick Cozzi moderated and spoke as part of the panel discussion.
  • Locate16 was held April 12-14 in Melbourne, Australia. Cesium had a great experience there.
  • Cesium Pro Seminar was held April 11 in Tel Aviv, Israel, with 150 attendees.

Patrick Cozzi at Tech in Motion in Washington, D.C.

Lots of attendees for the Cesium Pro seminar in Tel Aviv.

Our booth at Locate 16 in Melbourne.


The Cesium team at AGI is hiring!



We have three new showcases up on the Cesium website.


Cube Globe

Orbital Predictor for Earth Observation

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