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1.142

ShenhanQian/VHAP1.142Jun 1, 2026by lukemckinstry

AI Summary

Version 1.142 introduces high-performance data loading primitives for GeoJSON and MVT, adds CAD-style wireframe rendering options, and introduces experimental support for new glTF and 3D Tiles extensions.

Key Highlights

  • Added GeoJsonPrimitive for high-performance GeoJSON loading into BufferPrimitiveCollections
  • Added MVTDataProvider for Mapbox Vector Tiles with styling and metadata support
  • Added edgeDisplayMode to Model and Cesium3DTileset for CAD-style wireframe rendering
  • Added blendOption parameter to Buffer collections for alpha transparency control

New Features

  • GeoJsonPrimitive for direct GeoJSON loading
  • MVTDataProvider for Mapbox Vector Tiles
  • edgeDisplayMode enum (SURFACES_ONLY, SURFACES_AND_EDGES, EDGES_ONLY)
  • Experimental support for EXT_mesh_polygon and 3DTILES_content_gltf_vector

Full Release Notes

1.142 - 2026-06-01

Highlights include:

- Added `GeoJsonPrimitive` for loading GeoJSON directly into `BufferPrimitiveCollections`, bypassing the entity/DataSource layer for significantly improved performance with large datasets. https://github.com/CesiumGS/cesium/pull/13505
- Added `MVTDataProvider` for loading Mapbox Vector Tiles (MVT) directly into CesiumJS as 3D Tiles. Supports per-feature styling via `Cesium3DTileStyle`, feature picking with metadata (`getProperty`), and automatic property table encoding via `EXT_structural_metadata`. https://github.com/CesiumGS/cesium/pull/13404
- Added `blendOption` constructor parameter to `BufferPointCollection`, `BufferPolylineCollection`, and `BufferPolygonCollection`, supporting `BufferPrimitiveMaterial#color.alpha`. Added support for `BufferPrimitiveMaterial#outlineColor.alpha` to `BufferPointCollection`. https://github.com/CesiumGS/cesium/pull/13384
- Added experimental support for `EXT_mesh_polygon` draft glTF extension and `3DTILES_content_gltf_vector` draft 3D Tiles extension. https://github.com/CesiumGS/cesium/pull/13478
- Added `EdgeDisplayMode` enum and `edgeDisplayMode` property to `Model` and `Cesium3DTileset` for controlling how edges from the https://github.com/KhronosGroup/glTF/pull/2479 glTF extension are rendered. Supports three modes: `SURFACES_ONLY`, `SURFACES_AND_EDGES`, and `EDGES_ONLY` (CAD-style wireframe rendering). https://github.com/CesiumGS/cesium/pull/13192


See the [changelog](https://github.com/CesiumGS/cesium/blob/1.142/CHANGES.md) for the complete list of changes.