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1.144

LizardByte/Sunshine1.144Aug 4, 2026by jjhembd

AI Summary

CesiumJS 1.144 introduces enhancements for CAD-style rendering with a new glTF extension for planar polygon fills, improves vector rendering by clamping to terrain, and updates camera controllers for better asset inspection.

Key Highlights

  • New glTF extension for CAD-style planar polygon fill rendering
  • Vector rendering now supports clamping to terrain with screen-space-constant width lines
  • New camera controllers for better asset inspection
  • Memory reduction (up to 19x) for models with edge visibility extensions

New Features

  • BENTLEY_materials_planar_fill glTF extension support
  • Vector polyline/polygon clamping to terrain
  • New camera controller architecture
  • Improved WMTS picking on 3D Tiles

Full Release Notes

1.144 - 2026-08-03

Highlights include:

- To improve CAD-style rendering, CesiumJS adds support for the Bentley-contributed BENTLEY_materials_planar_fill glTF extension, bringing planar polygon fill with depth sorting and coplanar ordering that keep overlapping surfaces from flickering. [#13178](https://github.com/CesiumGS/cesium/pull/13178)
- Vector rendering now supports clamping vector polylines and polygons to terrain with screen-space-constant width lines and per-feature styling through Cesium3DTileStyle. This allows massive, tiled visualization of datasets like road connectivity, rivers, and census blocks that correctly overlay on top of terrain. [#13627](https://github.com/CesiumGS/cesium/pull/13627)
- Picking of metadata from WMTS imagery providers now works when the imagery layer is draped on 3D Tiles. [#13575](https://github.com/CesiumGS/cesium/pull/13575) 
- New camera controllers, and a more extensible controller architecture, allow controls to be better targeted to asset inspection and other use cases. [#13604](https://github.com/CesiumGS/cesium/pull/13604)
- Models using the EXT_mesh_primitive_edge_visibility extension now load with significantly less JavaScript heap (up to 19x less memory). [#13643](https://github.com/CesiumGS/cesium/pull/13643)

See the [changelog](https://github.com/CesiumGS/cesium/blob/1.144/CHANGES.md) for the complete list of changes.