Skip to main content

Cesium Version 1.45 Released

We are happy to announce the release of Cesium 1.45. With this release, CesiumJS now connects to Cesium ion by default for base imagery, terrain, and geocoding.

With a Cesium ion account you can upload your own imagery and terrain for cloud-based 3D tiling. You can also combine your terrain with Cesium World Terrain and stream curated assets, such as Bing Maps and Sentinel-2.

Cesium includes a temporary ion access token to make it easy to get started. Set up a free Community account to ensure your apps continue to work after the temporary token expires.

Community accounts are licensed for personal, exploratory, and unfunded educational use. For commercial, government, and funded research, commercial accounts are available starting at $149 per month; see the pricing page.

Other highlights include:

  • Numerous glTF improvements in visual quality and loading performance.
  • Cesium now uses a logarithmic depth buffer, which reduces CPU overhead, decreases the number of draw calls, and removes multi-frustum artifacts. #5851
  • Fix flicker when adding, removing, or modifying entities. #3945

For the full list of changes, see the change log.


Cesium World Terrain in New Zealand.



  • May 14–16 we’ll be at FOSS4G NA in St Louis. We’ll be sharing the latest on Cesium and 3D Tiles, bringing along the Cesium arcade machine, and sharing great demos at our booth. Email Sarah to meet up with us there!
  • On May 7 Patrick Cozzi will be speaking about about autonomous driving simulation with WebGL and Cesium at a New York City WebGL Meetup.
  • Patrick Cozzi spoke on the Immersive Technologies Panel at the Phorum conference in April.
  • We went to GEOINT with AGI to talk about our ability to fuse together very large point clouds, intricate 3D models, and massive terrain datasets to glean more insights from within Cesium’s highly scalable and dynamic 3D view.


We have four new showcases up on our demos page.


Virtual Citites

IMS Wireless Manager