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Data Formats

Specifications and documentation to learn about standard formats used by Cesium products

3D Tiles

Resources to learn about 3D Tiles, an open specification optimized for streaming massive 3D content

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glTF

Khronos glTF™, a royalty-free specification for the efficient transmission and loading of 3D scenes and models by applications

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CZML

A guide for working with CZML, a JSON format for time-dynamic graphical scenes in CesiumJS

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Quantized Mesh

Documentation of the quantized mesh terrain format, a multi-resolution quadtree pyramid of meshes

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ion tiling

Create optimized 3D data formats with Cesium tilers

Cesium's 3D Tiling Pipeline is built into Cesium ion and allows you to create data optimized for viewing and streaming from the common 3D file types you already use. Read the guide in 3D Tiling to learn more.

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Content and code examples at cesium.com/learn are available under the Apache 2.0 license. You can use the code examples in your commercial or non-commercial applications.