Cesium for Omniverse v0.27.0

Cesium for Unity Samples v1.22.0

CesiumJS 1.138

Cesium for Unreal

In January, we attended GeoBuiz in Denver and opened the call for presentations and early bird registration for the 2026 Cesium Developer Conference. Looking ahead, we’re thrilled to be a host of the 134th OGC Member meeting in Philadelphia in March. 

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 1.138 is now available. Highlights of the release include:

Fixed jitter artifacts on Intel Arc GPUs. #12879 

Improved voxel memory usage by reworking Megatexture to use Texture3D. #12570 

Fixed multiple issues causing undefined pick results in 2D/CV scene modes. #13083 

Fixed label sizing for some fonts and characters. #9767 

Volumetric rendering with voxels in CesiumJS was optimized with WebGL2’s 3D Textures for reduced memory usage at runtime.

Cesium for Unreal v2.23.0 is now available. Highlights of this release include:

When adding a CesiumCartographicPolygon to the level via the Cesium panel, the polygon is now created in the current Editor view, rather than at the origin. 

Added ACesiumCartographicPolygon::SetPolygonPoints to shape a polygon spline from a list of positions in cartographic or Earth-Centered, Earth-Fixed coordinates. 

Re-enabled support for tileset water masks on macOS devices. 

In addition to the above, this release updates cesium-native from v0.56.0 to v0.57.0. See the changelog for a complete list of changes in cesium-native. 

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 Marketplace

Cesium for Unity v1.22.0 is now available. Highlights of this release include:

Fixed a bug that prevented CesiumGoogleMapTilesRasterOverlay from being added to a GameObject in more recent versions of Unity.  

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

Coming this week: The Design and Reality Tilers will now be packaged with the tilers and tools in the 3D Tiling Pipeline. Versions will be unified, and all tilers will be on v5.0.0. 

WorldLens uses Cesium for Unity to deliver high-performance, immersive VR experiences that stream global geospatial data to Meta Quest.

Blenheim Palace leveraged 3D Tiles created through the Cesium Design Tiler and Add-In for Autodesk Revit to create a digital twin in CesiumJS that has IoT integration to enable smart heritage conservation, predictive maintenance, and sustainability.

Blenheim Palace Performing Smart Conservation with Cesium

To modernize and synchronize operational-level planning, Sandtable uses CesiumJS, Cesium for Unity, and Cesium ion to combine traditional military planning documents and immersive geospatial context.

In December, the team was in Orlando for I/ITSEC and Exton for our quarterly refactor. Then came all the jolly action with the Cesium-powered NORAD Tracks Santa app. 

Today, we opened the call for presentations for the 2026 Cesium Developer Conference. Submit your talk ideas, and we look forward to seeing you in June! 

CesiumJS 1.137 is now available. Highlights of the release include:

Fixes for positioning in workflows that delete and recreate labels. 

Fixes for texture coordinates in large billboard collections.

CesiumJS rendering a large collection of billboards with high precision, using data from the iTwin Feature Service.

Cesium for Unreal v2.22.0 is now available. Note that this release removes support for Unreal Engine 5.4; Unreal Engine 5.5 or later is required.

Other highlights of this release include:

Replaced the "Auto Fill" button on UCesiumFeaturesMetadataComponent with "Add Properties". This allows metadata properties and feature ID sets to be selectively added to the component, rather than adding them all in bulk. 

Added EnableDoubleSidedCollisions to ACesium3DTileset to allow intersections and collisions with geometry to also work when hitting "back" faces. 

Added an optional glTF model post-processing stage after the tile loading step to modify their models before they are displayed. 

Added support for refreshing Cesium ion login tokens after they expire and the refresh token is still valid. 

Fixed a material generation bug on UCesiumFeaturesMetadataComponent where user-made connections to If nodes were not preserved. 

Fixed deprecation warnings when compiling with Unreal Engine 5.5+ by replacing deprecated GetInputsView() calls with FExpressionInputIterator. 

This release also updates cesium-native from v0.55.0 to v0.56.0. See the changelog for a complete list of changes in cesium-native. 

A list of metadata properties available in the New York region of Cesium OSM Buildings.

Cesium for Unity v1.21.0 is now available. Highlights of this release include:

Setting CesiumGeoreference.ellipsoid at runtime will now correctly update the Georeference and associated transforms. 

Fixed a bug that could cause Cesium3DTileset::Update to be called more than once per frame in the Editor. 

Further improved stability when Unity reloads the AppDomain, such as when editing scripts or entering Play mode. 

In addition to the above, this release updates cesium-native from v0.55.0 to v0.56.0. See the changelog for a complete list of changes in cesium-native. 

Cesium for Omniverse v0.26.0 is now available. Highlights of this release include:

Fixed loading KTX2 textures with mipmaps.

Peruse the changelog for the full list of updates, and get started with our Cesium for Omniverse tutorials. 

Download the Cesium for Omniverse extension

Download the Cesium for Omniverse samples

Reduced memory usage when processing IFC files. 

Added support for nested IFC properties. 

(experimental) Added support for geospatially locating IFC exports from Archicad. 

Fixed a stack-overflow issue when processing some IFC elements on Windows. 

If an IFC property has multiple data types, the data will be cast to the most general type. 

Fixed an issue where a CRS origin could be applied incorrectly if the origin was set from the command line and also found in a sidecar file. 

Virtual City Systems uses CesiumJS to power open source 3D urban planning tools like VC Map and VC Solar, enabling scalable, interactive city modeling and analysis for municipalities. 

Engineering design and consulting firm WSB is using Cesium-powered geospatial capabilities in Bentley Infrastructure Cloud Connect to ensure design flaws are caught early.   

In 2025, NORAD Tracks Santa turned 70. Cesium is proud to help track Santa each Christmas Eve since 2012. 

Last month we attended both FOSS4G NA and the LSAS Aerospace and Defense Workshop, where we presented and met with the community. And we’re currently at I/ITSEC! Come by to meet with our team and see demos curated specifically for the modeling, simulation, and training community.

We’ve also welcomed new team members, including Don McCurdy, creator of glTF Transform and glTF.report. We shared his recent conversation with Sean Lilley, our lead engineer behind 3D Tiles, discussing how we can advance 3D Tiles and glTF in an open ecosystem.

CesiumJS 1.136 is now available. Highlights of the release include:

Fixed depth testing bug with billboards and labels clipping through models #13012

Billboards using imageSubRegion now render as expected. #12585

Improved scaling of SVGs in billboards #13020

Fixed unexpected outline artifacts around billboards #13038

Added scene.pickAsync for non GPU blocking picking using WebGL2 #12983

Improves performance of terrain picks via new terrain picking quadtrees #8481

This month we made performance improvements in CesiumJS for terrain picking by using a quadtree acceleration structure.

Cesium for Unreal v2.21.1 is now available. Note that this is the last release of Cesium for Unreal that will support Unreal Engine v5.4. Future versions will require Unreal Engine v5.5+.

Fixed a bug that prevented UCesiumPrimitiveFeaturesBlueprintLibrary::GetPrimitiveFeatures from retrieving the features of instanced meshes.

In addition, this release updates cesium-native from v0.54.0 to v0.55.0. See the changelog for a complete list of changes in cesium-native.

Cesium for Unity v1.20.0 is now available. Importantly, this month we added a highly requested feature: experimental support for web builds!

Improved stability when Unity reloads the AppDomain, such as when editing scripts or entering Play mode.

Fixed incorrect association of the iOS libraries with the iOS platform, which could cause errors when packaging for other platforms.

Exceptions thrown by delegates implemented in native code are now correctly propagated back to the managed caller. Previously, this scenario could cause crashes and undefined behavior.

Delegate wrappers for native functions now use SafeHandle to ensure the native function will not be destroyed by the garbage collector while it is running.

Added Azure Maps 2D imagery assets as a Technology Preview.

Cesium ion now supports setting an asset's height for individual slides in Stories.

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

To modernize defense planning and rehearsal, VRAI used Cesium for Unreal to build the Virtual All-Domain Environment (VADE), enabling users to deeply examine areas of interest before arriving. 

Forensic Rock uses Cesium for Unreal and Google Photorealistic 3D Tiles to rapidly reconstruct accident scenes with high-fidelity geospatial data for legal visualizations.

Forensic Rock Accelerates Accident Reconstruction with Google Photorealistic 3D Tiles

VADE uses Cesium to mirror operational reality. Courtesy VRAI. 

Virtual All-Domain Environment (VADE) uses Cesium to mirror operational reality. Courtesy VRAI.

This Is VADE

An immersive XR platform in the works since 2021, VADE began as a proof of concept between simulation data company VRAI and the Royal Air Force for comprehensive situational awareness and could scale across Defence. VRAI announced VADE’s full release at DSEI in fall 2025. 

Real-world 3D data and live collaboration in VADE enable a common operating picture (COP) for detailed planning and faster decisions. Add XR, and troops familiarize themselves with a location before deploying. VADE can be set for individuals or in multiplayer mode, accessed via desktop app or with headsets.  

The tool’s capabilities span domains: 

For drone intervisibility studies, users can draw routes, mark waypoints at each kilometer, and determine blind spots at specific locations and heights to ensure proper placement anywhere on the globe.  

With a volumetric tool for battlespace management and deconfliction, airspace coordination via VADE is accurate and intuitive.  

High-altitude parachute insertion simulations include trackback lines for descent, giving the distance to the drop zone throughout the line; users can view the line from the aircraft or the ground, with the surroundings they can expect to see.  

Because VADE allows users to customize for NATO standards, slopes turn red if they’re not sufficient for helicopter landing sites (HLS). 

Although VADE is not a targeting tool, users can examine the impacts of explosives. 

Restricted operating zone for UAS overwatch. Courtesy VRAI.

Intervisibility study to ensure proper placement. Courtesy VRAI.

Route planning, with directional arrows and optional kilometer markers. Courtesy VRAI.

Gun target line (GTL) tool. Courtesy VRAI.

GTL and impact of explosives. Courtesy VRAI.

VADE employs Cesium World Terrain and Bing Maps Aerial imagery with Cesium for Unreal to enable users to navigate to places that matter for their missions, manipulating the time of day and simulating weather conditions, with high-fidelity rendering. When users are online, they can pull in Google Photorealistic 3D Tiles for exercises in urban areas, and Vexcel data is a boon when VADE is used as part of an airgapped solution via Cesium ion Self-Hosted.  

The VADE library includes data via Cesium ion; 3D models of aircraft, tanks, and other vehicles; NATO map marking symbols for friendly forces and enemy capabilities; and user-specific sources, like their own imagery, photogrammetry, or GitHub repos. VADE connects to users’ private Cesium ion accounts for hosting, tiling, and streaming efficiently. Using geospecific data via Cesium saves VRAI engineers and their users days of work per location and obviates the need for hand modeling or geotypical data, improving situational awareness and decision speed and reducing the cognitive burden on those tasked with complex planning and rehearsal. 

“It’s a transformative way of planning for defense. We operate in multiple dimensions—why wouldn’t we plan in multiple dimensions?” said Ant Casson, former Squadron Commander in the Royal Air Force and VRAI’s business development lead for the UK and Europe. “The possibilities are endless for VADE, enabled by the powerful tools provided by Cesium for Unreal.”

The VADE library includes 3D models of aircraft, tanks, and other vehicles. Courtesy VRAI.

VADE is dual use: in addition to its defense value, the app’s live 3D COP enables better decisions with real data for emergency services, disaster relief, critical national infrastructure planning, large event planning, and agricultural monitoring.  

Learn to integrate 3D geospatial data when clarity, confidence, and speed matter most. 

VRAI Delivers Virtual All-Domain Environment with Cesium for Unreal 

When a court case following a serious automobile accident could benefit from a visualization of the incident, attorneys turn to Forensic Rock, a Philadelphia company that creates visualizations of accident scenes using tire marks, LiDAR scans, and other physical evidence. With Google Photorealistic 3D Tiles and Cesium for Unreal, Forensic Rock delivers immersive, accurate reconstructions with speed and precision.

Forensic Rock recreates accident scenes for court cases using Photorealistic 3D Tiles and Cesium for Unreal. Courtesy Forensic Rock.

Visualizing car accidents using Cesium for Unreal

Forensic Rock

In one urgent case, Forensic Rock animators were given only two weeks to reconstruct an accident. They completed their animation on time thanks to Cesium for Unreal.

Forensic Rock’s typical process is to complete a LiDAR scan of the site, then build the scene and add an animation of the circumstances of the accident. By using Cesium for Unreal, they were able to forgo the labor intensive scanning and modeling stage. Through Cesium ion, animators had instant access to curated global datasets, including Photorealistic 3D Tiles, which gave them the real-world terrain and building data from the exact crash location needed for the scene.

With Photorealistic 3D Tiles, Forensic Rock can focus on visualizations without losing time to scanning and modeling the environment. Courtesy Forensic Rock.

Using Photorealistic 3D Tiles from the exact location of the accident, as well as police report data about the vehicle’s speed and position, they plotted a point-to-point crash trajectory that clearly demonstrated the path of the accident. The result was a compelling, data-driven animation that attorneys could use in court.

“While the forensics business often presents stressful deadlines, the integration of Cesium into our pipeline ensures we are always prepared.” 

Because Cesium is built around open standards, animators have access to high-quality datasets like Photorealistic 3D Tiles to bridge the gap between raw data and visual storytelling—making their work not just technically impressive but also impactful in legal contexts. Sign up for a Cesium ion account to bring real-world datasets into your application.

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

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!

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

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. 

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

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. 

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

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. 

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. 

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

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

In November 2025, we added a feature to Cesium Stories to clip the terrain around a model. 

Clip Terrain in Cesium Stories

Terradepth's AUVs collect vast amounts of 3D seabed data hosted on Cesium ion Self-Hosted and streamed to its CesiumJS-powered app, Absolute Ocean.

Glider Sim uses Cesium for Unity and Google Photorealistic 3D Tiles to deliver a globally immersive and highly realistic VR flight experience for both casual explorers and professional pilots.

In September, we released Cesium Mars, highlighted MicroStation’s 3D Tiles support and Cesium Native integration, and announced participants in the iTwin Activate cohort focusing on Cesium and 3D Tiles. We also attended the GeoGov Summit and welcomed Khronos members to Philadelphia for the F2F meeting. 

Cesium Mars is a 3D Tileset to enable developers, researchers, and mission planners to create visualizations and simulations of the Red Planet. 

Cesium Mars

CesiumJS 1.134 is now available. Highlights of the release include:

Added Google2DImageryProvider to load imagery from Google Maps. #12913 

Converted voxel raymarching to eye coordinates to fix precision issues in large datasets. #12061 

Fixed vertical misalignment of glyphs in labels with small fonts. #8474 

Fixed flickering artifact in Gaussian splat models caused by incorrect sorting results. #12662 

Sandcastle has been updated at https://sandcastle.cesium.com! The legacy Sandcastle app will remain available through November 3, 2025. 

Cesium for Unreal v2.20.0 is now available. Highlights of this release include:

Added support for rendering glTFs with line primitives. 

Added UCesiumGoogleMapTilesRasterOverlay. 

Added AssetOptions property to UCesiumIonRasterOverlay. 

In addition to the above, this release updates cesium-native from v0.51.0 to v0.52.0. See the changelog for a complete list of changes in cesium-native. 

The Google Maps attribution requirements were updated to use the "Google Maps" logo instead of the "Google" logo. Cesium ion and Cesium clients now use the Google Maps logo. If your application includes its own logic for the inclusion of the logo rather than using a logo provided by Cesium, see Google Maps' documentation for guidance about whether your application needs to be changed. 

Support for spherical harmonics for Gaussian splats. 

v1.7.1 is now available, with minor bug fixes. 

Fixed an issue that could cause incorrect materials to be mapped to meshes when loading OBJ files.

Fix export issues for some elements in Revit 2026. 

Fix incorrect transforms for some exported subcomponent elements. 

Support for Mars data added to imagery-tiler, terrain-tiler, and quantizedmeshto3dtilesconverter.

point-cloud-tiler handles PLY files with any number of comments now.

point-cloud-tiler fixed issue where in certain cases when using draco compression with .pnts output could result in batch table data not being written.

imagery-tiler added TileJSON format support.

For years, Propeller has been using CesiumJS to visualize drone-captured surveys of earthworks, quarries, mines, and waste management sites. Propeller recently got an upgrade when its team incorporated Cesium’s Design Tiler into the platform. 

For Propeller’s users, streaming IFC files as 3D Tiles means a faster, higher quality experience. They can analyze large files, like viewing cross sections of this IFC model. Courtesy Propeller.

Last year, Cesium released the first readily accessible, comprehensive 3D Tileset of the Moon. Today, we are excited to introduce Cesium Mars. Cesium Mars is a 3D Tileset to enable developers, researchers, and mission planners to create visualizations and simulations of the Red Planet. 

Cesium Mars comprises precise terrain captured by NASA and the European Space Agency (ESA), paired with colorized imagery. Cesium Mars is provided as 3D Tiles, the Open Geospatial Consortium (OGC) community standard created by Cesium. 

Enabling a digital ecosystem for planetary data 

A wealth of Mars data has already been captured by orbital and rover missions. The seven man-made satellites from five space agencies currently orbiting Mars and the two active rovers on Mars, NASA's Curiosity and Perseverance, send home more data every day through the Mars Relay Network. In addition, two space agencies are actively planning manned missions to Mars, and several additional agencies are planning for continued robotic exploration and orbital analysis. Cesium Mars lowers the barrier to entry for studying existing and new Mars data and for leveraging this ever-increasing data as part of the planning, execution, and analysis for Mars programs. A precise, easily accessed model of Mars supports the space community in its efforts toward an open, interoperable platform for a digital ecosystem supporting data captured beyond Earth.  

Mars viewed from space. Data for Cesium Mars from the Mars Orbiter Laser Altimeter (MOLA) on the NASA Mars Global Surveyor (MGS) and the High-Resolution Stereo Camera (HRSC) on the ESA Mars Express. 

The Gale Crater, visualized with Cesium Mars.  

Cesium Mars draped with a Mars MOLA elevation map from NASA's Scientific Visualization Studio. 

The launch of Cesium Mars comes at the right time when there's a need for planetary-scale digital twins and simulation for the next leap in human and robotic spaceflight. Buendea intends to leverage Cesium Mars within NASA’s XR Operations Support System (XOSS) to expand our digital twin environments beyond the Moon and into Mars. By combining Cesium’s geospatial platform with our high-fidelity interactive environments in Unreal Engine, we are creating a foundation for next-generation mission planning, astronaut training, and real-time operations in support of these efforts.  

Cesium Moon in XOSS in VR mode. Courtesy Buendea and NASA’s Advanced Operations Concepts Lab.

Since Cesium Moon’s release, the dataset has become a foundation for digital twins for mission planning, for training simulators, and for games. We anticipate similar uses for Cesium Mars. 

Space architects designing for the Moon and Mars are already employing workflows like those used for infrastructure on Earth. Cesium Mars enables those processes to converge, as users leverage functionality available for our open source runtime engines. Use Cesium Mars as a base layer to place models of habitats, vehicles, or rovers on the Martian surface. If you have your own high-resolution terrain data, clip and inset it so your projects can live within a single continuous 3D surface rather than multiple separate project areas. Share realistic, interactive 3D design visualizations with large, dispersed teams to facilitate review, highlight design alternatives, and present designs as they change over time. 

NASA’s Perseverance rover on Mars, viewed with Cesium for Unreal in Unreal Engine.

Cesium Mars is provided as 3D Tiles using the IAU_2015:49901 CRS and is composed of the ⁠Mars Viking Colorized Global Mosaic 232m imagery and ⁠Mars MGS MOLA - MEX HRSC Blended DEM Global 200m for terrain, along with higher resolution data for the Jezero and Gale craters. Cesium’s visualization engines—CesiumJS, Cesium for Unreal, Cesium for Unity, and Cesium for Omniverse—are ready for you to start building with Cesium Mars using an accurate representation of the planetary ellipsoid for measurement and analysis. Cesium Mars is available via Cesium ion SaaS and Cesium ion Self-Hosted.

This CesiumJS Sandcastle provides an example of how to include Cesium Mars in a web app. A sample level in Cesium for Unreal provides an example for how to get started with development using Cesium Mars in Unreal Engine. 

As lunar and interplanetary missions proceed, the need for an open, interoperable, standards-based platform to support simulation, planning, and analysis has never been greater. Cesium Mars, along with Cesium Moon, is a step toward this vision, offering a precise and scalable foundation. 

To access Cesium Mars, sign up or sign in to Cesium ion, locate the asset in the Cesium ion Asset Depot, and add the tileset to your Asset Library. Then start building! Create Cesium Stories, incorporate the data into a CesiumJS web app, or build advanced visualizations with 3D creation engines such as Unreal Engine. 

In August, we attended SIGGRAPH, MODSIM World, TAK Offsite, and P3DL; celebrated YouthMappers’ grant-funded 3D course; and introduced iTwin Platform to Cesium developers.  

Follow the tutorials to kickstart your use of iTwin Platform with Cesium.

CesiumJS 1.133 is now available. Highlights of the release include:

Added Ellipsoid.MARS for use with Mars terrain and imagery. #12828 

Added spherical harmonics support for Gaussian splats, supported with the SPZ compression format. #12790 

Added support for the EXT_mesh_primitive_restart glTF extension. #12764 

Cesium Releases in February 2026

Cesium Releases in January 2026

Cesium Releases in December 2025

VRAI Delivers Virtual All-Domain Environment with Cesium for Unreal

Forensic Rock Accelerates Accident Reconstruction with Google Photorealistic 3D Tiles

Cesium Releases in November 2025

Cesium Releases in October 2025