glTF Tutorial

By Marco Hutter, @javagl

This tutorial gives an introduction to glTF, the GL transmission format. It summarizes the most important features and application cases of glTF, and describes the structure of the files that are related to glTF. It explains how glTF assets may be read, processed, and used to display 3D graphics efficiently.

Some basic knowledge about JSON, the JavaScript Object Notation, is assumed. Additionally, a basic understanding of common graphics APIs, like OpenGL or WebGL, is required. This tutorial focuses on glTF version 2.0, where support for Physically Based Rendering was introduced, but the other concepts that are explained here are similar to how they had been implemented in glTF version 1.0.

Introduction
Basic glTF Structure
Example: A Minimal glTF File
Scenes and Nodes
Buffers, BufferViews, and Accessors
Example: A Simple Animation
Animations
Example: Simple Meshes
Meshes
Materials
Example: A Simple Material
Textures, Images, and Samplers
Example: A Simple Texture
Example: An Advanced Material
Example: Simple Cameras
Cameras
Example: A Simple Morph Target
Morph Targets
Example: Simple Skin
Skins

Acknowledgements:

Patrick Cozzi, Cesium, @pjcozzi
Alexey Knyazev, @lexaknyazev
Sarah Chow, @slchow

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