Skip to main content

Cesium Releases in November 2025

Josh Rouzer

In October, we introduced Google Maps 2D Tiles in Cesium ion and had a busy month with events: Intergeo, FOSS4G Japan, AUSA, YII, ArchiFuture, and the 133rd OGC Member Meeting. This week we’re at FOSS4G NA in Reston, Virginia—join us at our talks and stop by the Cesium table to chat with the team.  

The mountains of the island of Kauai, Hawaii visualized with the Google Maps 2D Satellite asset from Cesium ion

The stunning mountains of Kauai, Hawaii, visualized with Cesium World Terrain and the Google Maps 2D Satellite asset from Cesium ion.

We made improvements across Cesium this month. To get notifications about our monthly releases, you can subscribe to the Cesium release roundup thread on our community forum.

CesiumJS 1.135 release

CesiumJS 1.135 is now available. Highlights of the release include:

  • Added experimental support for loading 3D Tiles as terrain, via Cesium3DTilesTerrainProvider. See the PR for limitations on the types of 3D Tiles that can be used. #12296 
  • Added support for EXT_mesh_primitive_edge_visibility glTF extension. #12765 
  • Improved performance of scene.drillPick (#12916), removing primitives (#3018) and terrain Quadtree handling of custom data. (#12907) 
  • Removed support for the KHR_spz_gaussian_splats_compression extension in favor of the latest 3D Gaussian splatting extensions for glTF, KHR_gaussian_splatting and KHR_gaussian_splatting_compression_spz_2. Please re-tile existing Gaussian splatting 3D Tiles. #12837 

This release contained a number of community contributions, including three from user Beilinson. If you’re interested in helping too, check out our contributors guide. 

Sandcastle has been updated at https://sandcastle.cesium.com!

For more details, see the changelog.

Download CesiumJS 1.135
glTF model demonstrating the EXT_mesh_primitive_edge_visibility extension in CesiumJS. Customization of edge colors will come in a future release.

glTF model demonstrating the EXT_mesh_primitive_edge_visibility extension in CesiumJS. Customization of edge colors will come in a future release.

Cesium for Unreal 2.21.0 release

Cesium for Unreal v2.21.0 is now available. Highlights of this release include:

  • Added CesiumAzureMapsRasterOverlay. 
  • Added ICesium3DTilesetLifecycleEventReceiver interface, allowing applications to receive callbacks when a material is instanced, when a tile changes visibility, when a tile is unloaded, etc. 
  • Fixed a bug where CesiumCreditSystem would not filter out empty credits, resulting in duplicate on-screen delimiters. 
  • Improved CesiumGeoJsonRasterOverlay’s support for polygons with holes and for datasets with geometry on both sides of the antimeridian. 

Check the Cesium for Unreal release and the Cesium for Unreal Samples release for the full list of updates.

Download the Cesium for Unreal plugin from Epic MarketplaceDownload the Cesium for Unreal Samples
Infrared weather data across North America overlaid on satellite imagery from Microsoft Azure.

Infrared weather data across North America overlaid on satellite imagery from Microsoft Azure.

Cesium for Unity 1.19.0 release

Cesium for Unity v1.19.0 is now available. Highlights of this release include:

  • Added CesiumGoogleMapTilesRasterOverlay to stream imagery from Google Maps. 
  • Added CesiumAzureMapsRasterOverlay to stream imagery from Microsoft Azure. 
  • Added assetOptions to CesiumIonRasterOverlay to pass JSON-string options to Cesium ion as it accesses an asset. 

Check the Cesium for Unity changelog for the full list of updates, and follow our Cesium for Unity tutorials to get started. 

Download the Cesium for Unity samples
Traffic in Philadelphia, PA, USA, visualized over a roadmap layer from Microsoft Azure alongside Cesium OSM Buildings.

Traffic in Philadelphia, PA, USA, visualized over a roadmap layer from Microsoft Azure alongside Cesium OSM Buildings.

Cesium ion updates

Cesium ion SaaS

  • Added Google Maps 2D imagery. 
  • Cesium ion now keeps track of which user created a story or uploaded an asset when that user is acting as a member of a Team account. 
  • Cesium ion now allows users to copy assets and stories between accounts to which they have access, such as from their individual Community account to a Team account. 
  • In Cesium Stories, added a feature to clip the terrain around a model. 

Cesium ion Self-Hosted 1.8.0

  • Added support for spherical harmonics when viewing Gaussian splat assets. 
  • Added support for tracking the creator of an asset and a story. 
  • Fixed an issue in reality tiler that could cause incorrect materials to be mapped to meshes when loading OBJ files. 
  • Fixed an issue where repositioning an asset would cause the re-archive process to fail. 
  • Fixed a bug with 3D Tiles imports from Microsoft Azure. 
  • Minor bug fixes. 

Reality Tiler

  • Fixed an issue that could cause models with multiple sets of texture coordinates to be subdivided more than necessary. 

Check the changelogs for the full list of updates for Cesium ion SaaS and Cesium ion Self-Hosted.

Sign up for Cesium ionDownload Cesium ion Self-Hosted

We added a feature to Cesium Stories to clip the terrain around a model.

Powered by Cesium