Registration is open for the 2026 Cesium Developer Conference! Save your spot.

Cesium for Omniverse v0.28.0

Cesium for Unity Samples v1.23.1

CesiumJS 1.141

Cesium Release Roundup

In April, we announced the 2026 Cesium Developer Conference tracks, published the full agenda, and highlighted the pre-conference workshops; excitedly tracked Artemis II; made 3D Gaussian splats available in the Cesium and 3D Tiles ecosystems; and shared what we’re showcasing at GEOINT Symposium next week. Will we see you there? Join us in booth 1303. 

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 1.141 is now available. Highlights of the release include:

Added support for properties (EXT_structural_metadata) in vector tilesets. #13426 

Bumped minimum required Node version to 22.0.0 .

BufferPrimitiveCollection properties modelMatrix, boundingVolume, and boundingVolumeWC are now readonly. They may be modified, but not reassigned. #13448 

Fixed lighting affecting EquirectangularPanorama. #13369 

Fixed incorrect matrix multiplication for non worldspace instance transforms in pickModel. #13433 

A 3D Gaussian splat tileset of the Microsoft campus in Redmond, Washington, USA, in CesiumJS. (Explore the Sandcastle.)

Cesium for Unreal v2.26.0 is now available. Highlights of this release include:

Added ACesium3DTileset::UnloadEditorTilesInPlayMode, which toggles whether in-editor tileset instances should unload their tiles before Play-in-Editor begins. This can prevent the Editor from duplicating resources for the same tileset and potentially consuming too much memory. 

Added a "Clear Request Cache" Blueprint-callable function to UCesiumRuntimeSettings and a button to Project Settings -> Plugins -> Cesium that clears all entries from the SQLite request cache database. 

Fixed a bug where Gaussian splats would continually accumulate in the scene, eventually causing the application to crash. 

In addition to the above, this release updates cesium-native from v0.59.0 to v0.60.0. 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

The Microsoft campus in Redmond, Washington, USA, visualized with 3D Gaussian splat tilesets in Cesium for Unreal. 

Cesium for Unity v1.23.2 is now available. 

This release updates cesium-native from v0.59.0 to v0.60.0 and brings bug fixes such as:

Fixed a bug in CesiumRasterOverlays::GeoJsonDocumentRasterOverlay where styles set on geometry objects within a FeatureCollection were not applied.   

See the changelog for a complete list of changes in cesium-native. 

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

**Cesium ion SaaS**
- Cesium ion now enables organizations with paid accounts to require the use of SSO when their users log into ion. To learn more, contact support. 
- Cesium ion now generates levels of detail (LODs) for Gaussian splat assets generated through the reconstruction pipeline. 

**Cesium ion Self-Hosted** 
Cesium ion Self-Hosted 1.10.0 is now available. 

- Added support for ingestion and streaming of 3TZ assets. 
- Added UI enhancements to the Cesium ion dashboard. 
- Design tiler: Improved rendering of IFC elements by giving sub-assembly elements the bounding box of the full assembly. 
- Design tiler: Added more graceful handling of IFC lines that don’t meet the IFC specification. 
- Design tiler: Added support for parsing eastings, northings, and orthogonal height from IFC files. 
- Gaussian splats tiler: Added logic to filter out NaN and infinite values when parsing PLY files. 
- Design tiler: Emits double-precision floats (instead of single-precision floats) for IFC attributes and properties. 
- Design tiler: Fixed generation of IFC swept circular geometry for better shading and performance. 
- Design tiler: Fixed issues processing B-splines in IFC files. 
- Design tiler: Fixed issues processing some geometries with swept circles. 
- Reality tiler: Fixed an issue where duplicate vertices in input models could lead to inefficient textures and larger tilesets than necessary. 
- Reality tiler: Fixed a regression where duplicate vertices in the input would be written to tiles, rather than being filtered out. 
- Reality tiler: Significantly reduced memory usage for models with spatially incoherent textures. 

**Asset Server**
- Updated the asset server to the latest version. 

**Design Tiler**
- Added `IfcSpace` relations to element properties in IFC metadata. 

**Reality Tiler** 
- Fixed a race condition that could lead to subtree files with content/availability bits incorrectly set to zero. 

Bedrock.engineer leverages voxel support in draft 3D Tiles 2.0 and CesiumJS to stream large-scale subsurface geoscience data directly in the browser for city planning, infrastructure, and environmental decision-making.

XReality Factory (XRF) uses CesiumJS and Cesium for Unity for a single shared operational view for better, faster decisions across real operations and training scenarios, throughout defense, security, and emergency management. 

The Purdue University Envision Center has integrated Cesium for Unity into CollabXR, bringing geospatial support to their XR development platform that allows students and researchers to explore complex datasets together. 

Geotour brings together information about Crete’s history, landscapes, and biodiversity as well as photos, panoramas, and video tours of the island in a single interactive map built using CesiumJS. 

In March, we hosted the 134th OGC Member Meeting, attended the inaugural USGIF GEOINTeraction Colorado event, added support for panoramic imagery in CesiumJS, highlighted the Dev Rel team, introduced Cesium for Unity on the web, shared details about the ionosphere at this year’s Cesium Developer Conference, and launched AI-driven semantic search in Sandcastle. 

CesiumJS 1.140 is now available. Highlights of the release include:

Fixes a regression with the NGA-GPM local extension and custom shaders. #13247 

Billboards and labels now require device support for WebGL 2, or WebGL 1 with ANGLE_instanced_arrays and MAX_VERTEX_TEXTURE_IMAGE_UNITS > 0. #13053 #13253 

Added experimental, performance-focused vector primitive APIs:  BufferPointCollection, BufferPolylineCollection, and BufferPolygonCollection. #13212 

Added support for Reality Data of type  ITwinPlatform.RealityDataType.GaussianSplat3DTiles to ITwinData.createTilesetForRealityDataId. #13208 

Added GetFeatureInfo support to WebMapTileServiceImageryProvider, enabling WebMapTileServiceImageryProvider.pickFeatures for both KVP and RESTful WMTS services. New class parameters include enablePickFeatures, getFeatureInfoFormats, getFeatureInfoUrl, and getFeatureInfoParameters. #13196 

Added limited support (via downcasting) for double-precision metadata types in custom shaders. #13323 

Added a new experimental property PathGraphics.relativeTo, which allows entity PathGraphics to be displayed in a reference frame relative to another entity, or a different reference frame than the entity's Position.ReferenceFrame. #13223 

Fixed intermittent label text/background misalignment when using heightReference (CLAMP_TO_GROUND, CLAMP_TO_TERRAIN, or CLAMP_TO_TILE). #13335 

Improved Gaussian splat loading and update performance by reducing transform work, reusing aggregate buffers, and lowering repeated sort churn during camera movement. #13322 

Improved Gaussian splat SPZ decode performance by updating @spz-loader/core to 0.3.1. #13329 

Fixed a crash when decoding large Gaussian splat SPZ files with high spherical harmonics degree. #13287 

Fixed Gaussian splat modelMatrix not being correctly applied to splat positions, rotations, and scales when the tileset transform changes. Fix spherical harmonic view direction being evaluated in the wrong coordinate frame in Gaussian splat rendering, causing subtle color errors for datasets without an embedded axis-compensation matrix. #13305 

Fixed a WebGL crash when rendering Gaussian splat tilesets with more than ~16 million splats. #13235 

No longer disables custom shaders for primitives with missing metadata, as long as the metadata exists on the overall class definition. #13258 

Fix performance issue with multiple ClippingPolygon on Cesium3DTileset. #13255 

ClippingPolygonCollection performance and quality improvements. #13308 

Two orbiting satellites viewed in CesiumJS, with satellite 2's path displayed relative to satellite 1.

Cesium for Unreal v2.25.0 is now available. Highlights of this release include:

Added support for tilesets containing 3DTILES_content_voxels. Voxel metadata can be styled with materials generated by UCesiumVoxelMetadataComponent. 

Added UCesiumGlobeAnchorComponent::HeightReference. Setting this to ECesiumHeightReference::Tileset will cause the actor to maintain its height above the specified tileset during LOD transitions or object movement. 

Added UCesiumGlobeAnchorComponent::ReferencedTileset. Set this field to a ACesium3DTileset actor reference to maintain a fixed height above the tileset. 

Added UCesiumGlobeAnchorComponent::HeightUpdateInterval to specify how often the actor's height is updated when HeightReference is Tileset. 

Added ReceiveDecals property to ACesium3DTileset to allow toggling decal reception per tileset. 

In addition to the above, this release updates cesium-native from v0.58.0 to v0.59.0. See the changelog for a complete list of changes in cesium-native. 

Voxel visualization of geothermal temperature data surrounding Lake Thunersee, Switzerland. Visualized in Cesium for Unreal through glTF and 3D Tiles.

Cesium for Unity v1.23.1 is now available. 

This release updates cesium-native from v0.58.0 to v0.59.0. See the changelog for a complete list of changes in cesium-native. 

Cesium for Omniverse v0.28.0 is now available. Highlights of this release include:

Cesium for Omniverse now requires Kit 109.0 or above (Isaac Sim 6.0.0 or above). 

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

**Cesium ion SaaS**
- Coming this week: an update for the reconstruction of Gaussian splats with LODs from photo collections. 

**Cesium ion Self-Hosted**
Cesium ion Self-Hosted v1.9.0 is available.
- Added support for copying assets and stories between individual and teams accounts. 
- Design tiler: Reduced memory usage when processing IFC files. 
- Design tiler: Added support for nested IFC properties. 
- Design tiler: Improved rendering of IFC elements by giving sub-assembly elements the bounding box of the full assembly. 
- Design tiler: Added more graceful handling of IFC lines that don’t meet the IFC specification. 
- Design tiler: Fixed an issue where invalid attributes could be generated when converting from OBJ to glTF. 
- Reality tiler: Fixed an issue that could cause models with multiple sets of texture coordinates to be subdivided more than necessary. 
- Reality tiler: 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. 
- Reality tiler: Fixed an issue where duplicate vertices in input models could lead to inefficient textures and larger tilesets than necessary. 
- Reality tiler: Fixed a regression where duplicate vertices in the input would be written to tiles, rather than being filtered out. 
- Minor bug fixes.  

**Gaussian Splats Tilers** 
- Added logic to filter out NaN and infinite values when parsing PLY files.

**Design Tiler**
- Emits double-precision floats (instead of single) for IFC attributes and properties.

Camptocamp’s Geo Challenge game, built in CesiumJS, uses high‑resolution swisstopo data and Google Photorealistic 3D Tiles for a smooth, browser-based 3D guessing experience. 

Matom.AI uses AI with CesiumJS and 3D Tiles to analyze city‑scale point clouds in the browser and maintain continuously up‑to‑date digital twins. 

In February, we attended Geo Week in Denver and discussed interoperability and open standards for Gaussian splats in the RTC AECO Spotlight. This week we’re proud to host the 134th OGC Member Meeting—let us know if you’re in Philadelphia! Plus: two more weeks of early bird devcon registration. 

CesiumJS 1.139 is now available. Highlights of the release include:

Added panorama support via new EquirectangularPanorama and CubeMapPanorama classes, along with GoogleStreetViewCubeMapPanoramaProvider for loading cube map faces from the Google Street View Static API and rendering them in a cube map panorama. #13153 

Added more depth testing options for billboards and labels. #12994 

Added support for more metadata types via property textures in custom shaders. #13135 

Modified Sandcastle application to use a hybrid text and semantic, embedding based search. #13090 

Fixed Gaussian splat race conditions in snapshot/sort updates. #13016 #12965 

Fixed flashing when rendering multiple Gaussian splat primitives. #12967 

Part of a 360-degree panorama image of the interior of Laon Cathedral, France, visualized in CesiumJS. Photo by David Iliff, licensed under CC BY-SA 3.0.

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

Added support for loading tilesets with the KHR_gaussian_splatting extension. 

Added support for styling with tileset statistics on UCesiumFeaturesMetadataComponent. 

Deprecated AddCamera, RemoveCamera, UpdateCamera, and GetCameras on ACesiumCameraManager. Instead, use the new AdditionalCameras array to directly add or remove cameras. 

Added UsePlayerCameras, UseEditorCameras, and UseSceneCapturesInLevel to ACesiumCameraManager to toggle the automatic detection of cameras in the level for tile selection. 

Added ACesiumCameraManager::SceneCaptures for more explicit control over which ASceneCapture2Ds are used for tile selection. 

Added DetectTransformChanges to UCesiumGlobeAnchorComponent to toggle whether the globe anchor should update itself after changes in its Actor's transform. 

Build now uses the tinyxml2 library from Unreal's SDK on Linux and Windows if it is available. This eliminates a source of conflicts with other plugins that also use tinyxml2. 

Removed Cesium3DTileset::getFeaturesMetadataDescription. This can be directly retrieved from its attached UCesiumFeaturesMetadataComponent instead. 

In addition to the above, this release updates cesium-native from v0.57.0 to v0.58.0. See the changelog for a complete list of changes in cesium-native. 

Hines Rowing Center in Conshohocken, PA, visualized in Cesium for Unreal using Gaussian splats produced by iTwin Reality Capture.

Cesium for Unity v1.23.0 is now available. Highlights of this release include:

Added CesiumGeoJsonDocumentRasterOverlay, allowing stylized GeoJSON to be rasterized and draped over terrain and other 3D Tiles. 

Added CesiumGeoJsonDocument to parse and manipulate GeoJSON documents in code. 

Added CesiumGeoJsonObject to access individual features, geometries, and collections within a GeoJSON document. 

Added CesiumVectorStyle, CesiumVectorLineStyle, CesiumVectorPolygonStyle, and CesiumVectorPolygonFillStyle structs for styling vector data. 

A footprint of a proposed design model projected onto Cesium World Terrain using CesiumGeoJsonDocumentRasterOverlay.

Cesium for Omniverse v0.27.0 is now available. Highlights of this release include:

Cesium for Omniverse now requires Kit 107.3 or above (Isaac Sim 5.1.0 or above). 

**Cesium ion SaaS**
- Coming this week: additional options for running photo reconstruction jobs. These will make it possible to tune your automated reality modeling pipelines to better meet your requirements. 

**Cesium ion Self-Hosted**
- Coming this week: new version of Cesium ion Self-Hosted that includes recent updates to the Cesium design and reality tilers. 

**3D Tiling Pipeline** 
- The Design and Reality Tilers are now packaged with the tilers and tools in the 3D Tiling Pipeline. Versions have been unified, and all tilers are now on v5.0.1. 
- Added `terrain-and-imagery-tiler`, which produces 3D Tiles 1.1 output. 
- Removed `quantizedmeshto3dtilesconverter`; it has been replaced by `terrain-and-imagery-tiler`. 
- Fixed an issue where invalid attributes could be generated when converting from OBJ to glTF.

    - **Design Tiler** 
      - Improved rendering of IFC elements by giving sub-assembly elements the bounding box of the full assembly. 
      - Added more graceful handling of IFC lines that don’t meet the IFC specification. 
      - Added support for parsing eastings, northings, and orthogonal height from IFC files. 
      - Fixed generation of IFC swept circular geometry for better shading and performance. 
      - Fixed issues processing B-splines in IFC files. 
      - Fixed issues processing some geometries with swept circles. 

    - **Reality Tiler** 

      - Fixed an issue where duplicate vertices in input models could lead to inefficient textures and larger tilesets than necessary. 
      - Fixed a regression where duplicate vertices in the input would be written to tiles, rather than being filtered out. 
      - Significantly reduced memory usage for models with spatially incoherent textures. 

    - **Buildings Tiler**
      - Fixed an issue where some images in a glTF file had an invalid format and/or incorrect mime type. 

Trailamo uses CesiumJS to bring open geospatial data to mountaineers so they can plan safer, more informed routes anywhere in the world with advanced 3D terrain analysis and layered datasets. 

BADASS Studios uses Cesium for Unreal to create a premium digital fan experience for the E1 Series. 

Creating an XR Connection to the E1 Series with 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. 

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.

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. 

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.  

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.

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

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. 

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