1.139

vercel/streamdown1.139Mar 2, 2026by jjhembd

AI Summary

A major update introducing panorama support, depth testing options, and metadata types for custom shaders, along with fixes for Gaussian splat rendering.

Key Highlights

Added panorama support via new `EquirectangularPanorama` and `CubeMapPanorama` classes
Added more depth testing options for billboards and labels
Added support for more metadata types via property textures in custom shaders
Fixed Gaussian splat race conditions and flashing issues

New Features

EquirectangularPanorama and CubeMapPanorama classes
GoogleStreetViewCubeMapPanoramaProvider
Enhanced depth testing options
Extended metadata types support in custom shaders

Full Release Notes

1.139 - 2026-03-02

Highlights 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](https://github.com/CesiumGS/cesium/pull/13153/)
- Added more depth testing options for billboards and labels. [#12994](https://github.com/CesiumGS/cesium/pull/12994)
- Added support for more metadata types via property textures in custom shaders. [#13135](https://github.com/CesiumGS/cesium/pull/13135)
- Modified Sandcastle application to use a hybrid text and semantic, embedding based search. [#13090](https://github.com/CesiumGS/cesium/pull/13090)
- Fixed Gaussian splat race conditions in snapshot/sort updates. [#13016](https://github.com/CesiumGS/cesium/issues/13016) [#12965](https://github.com/CesiumGS/cesium/issues/12965)
- Fixed flashing when rendering multiple Gaussian splat primitives. [#12967](https://github.com/CesiumGS/cesium/issues/12967)

See the [changelog](https://github.com/CesiumGS/cesium/blob/1.139/CHANGES.md) for the complete list of changes.