Library	Description
Cesium3DTiles	Lightweight 3D Tiles classes.
Cesium3DTilesReader	3D Tiles deserialization, including 3D Tiles extension support.
Cesium3DTilesWriter	3D Tiles serialization, including 3D Tiles extension support.
Cesium3DTilesSelection	Runtime streaming, decoding, level of detail selection, culling, cache management, and decoding of 3D Tiles.
CesiumAsync	Classes for multi-threaded asynchronous tasks.
CesiumGeometry	Common 3D geometry classes; and bounds testing, intersection testing, and spatial indexing algorithms.
CesiumGeospatial	3D geospatial math types and functions for ellipsoids, transforms, projections.
CesiumGltf	Lightweight glTF processing and optimization functions.
CesiumGltfReader	glTF deserialization / decoding, including glTF extension support (KHR_draco_mesh_compression etc).
CesiumGltfWriter	glTF serialization / encoding, including glTF extension support.
CesiumIonClient	Functions to access Cesium ion accounts and 3D tilesets using ion's REST API.
CesiumJsonReader	Reads JSON from a buffer into statically-typed classes.
CesiumJsonWriter	Writes JSON from statically-typed classes into a buffer.
CesiumUtility	Utility functions for JSON parsing, URI processing, etc.

💻Developers

⭐Prerequisites

• Visual Studio 2019 (or newer), GCC v11.x+, Clang 12+. Other compilers are likely to work but are not regularly tested.
• CMake 3.15+
• For best JPEG-decoding performance, you must have nasm installed so that CMake can find it. Everything will work fine without it, just slower.

Check out the repo with:

git clone --recursive https://github.com/CesiumGS/cesium-native.git

Compile from command line

cmake -B build -S . -G "Visual Studio 17 2022" -A x64
cmake --build build --config Debug
cmake --build build --config Release

Compile with any Visual Studio version using CMake generated projects

1. Open the CMake UI (cmake-gui)
2. Under "Where is the source code", point to your repo
3. Specify your output folder in "Where to build the binaries"
4. Click "Configure".
5. Under "Specify the generator for this project", choose the VS version on your system
6. Click Finish, wait for the process to finish
7. Click Generate

Look for cesium-native.sln in your output folder.

Unit tests can also be run from this solution, under the cesium-native-tests project.

Generate Documentation

• Install Doxygen.
• Run: cmake --build build --target cesium-native-docs
• Open build/doc/html/index.html

Regenerate glTF and 3D Tiles classes

Much of the code in CesiumGltf, Cesium3DTiles, CesiumGltfReader, and Cesium3DTilesReader is generated from the standards' JSON Schema specifications. To regenerate the code:

• Make sure you have a relatively recent version of Node.js installed.
• Install dependencies by running:

npm install
cd tools/generate-classes
npm install
cd ../..

• From the repo root directory, run these commands
  • npm run generate-gltf
  • npm run generate-3d-tiles
  • npm run generate-quantized-mesh-terrain
• On Windows, the line endings of the generated files will be different than those checked into the repo. Just git add them and git will fix the line endings (no need to commit).