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1.87.1

CesiumGS/cesium1.87.1Nov 9, 2021by ebogo1

AI Summary

Introduces experimental support for 3D Tiles Next extensions and a new ModelExperimental architecture, along with a CustomShader class for styling.

Key Highlights

  • Added experimental implementations for 3D Tiles Next (multiple extensions).
  • Added ModelExperimental, a new experimental architecture for loading glTF models.
  • Added CustomShader class for styling tilesets and models.

New Features

  • 3D Tiles Next extensions support (content_gltf, metadata, mesh_features, implicit_tiling, bounding_volume_S2, multiple_contents)
  • ModelExperimental architecture
  • CustomShader class

Full Release Notes

1.87.1 - 2021-11-09

Highlights include:

- Added experimental implementations of [3D Tiles Next](https://github.com/CesiumGS/3d-tiles/tree/main/next). The following extensions are supported:
  - [3DTILES_content_gltf](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_content_gltf) for using glTF models directly as tile contents
  - [3DTILES_metadata](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_metadata) for adding structured metadata to tilesets, tiles, or groups of tile content
  - [EXT_mesh_features](https://github.com/KhronosGroup/glTF/pull/2082) for adding feature identification and feature metadata to glTF models
  - [3DTILES_implicit_tiling](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_implicit_tiling) for a compact representation of quadtrees and octrees
  - [3DTILES_bounding_volume_S2](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_bounding_volume_S2) for [S2](https://s2geometry.io/) bounding volumes
  - [3DTILES_multiple_contents](https://github.com/CesiumGS/3d-tiles/tree/main/extensions/3DTILES_multiple_contents) for storing multiple contents within a single tile
- Added `ModelExperimental`, a new experimental architecture for loading glTF models. It is disabled by default; set `ExperimentalFeatures.enableModelExperimental = true` to enable it.
- Added `CustomShader` class for styling `Cesium3DTileset` or `ModelExperimental` with custom GLSL shaders
- Added Sandcastle examples for 3D Tiles Next: [Photogrammetry Classification](http://sandcastle.cesium.com/index.html?src=3D%20Tiles%20Next%20Photogrammetry%20Classification.html&label=3D%20Tiles%20Next), [CDB Yemen](http://sandcastle.cesium.com/index.html?src=3D%20Tiles%20Next%20CDB%20Yemen.html&label=3D%20Tiles%20Next), and [S2 Globe](http://sandcastle.cesium.com/index.html?src=3D%20Tiles%20Next%20S2%20Globe.html&label=3D%20Tiles%20Next)

See the [changelog](https://github.com/CesiumGS/cesium/blob/1.87.1/CHANGES.md) for the complete list of changes.