The Wayback Machine - https://web.archive.org/web/20200807052904/https://www.khronos.org/gltf/
glTF Overview
Runtime 3D Asset Delivery
glTF™ (GL Transmission Format) is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by applications. glTF minimizes both the size of 3D assets, and the runtime processing needed to unpack and use those assets. glTF defines an extensible, common publishing format for 3D content tools and services that streamlines authoring workflows and enables interoperable use of content across the industry.
glTF is run as an open project by Khronos. The specification, supporting materials and source code is developed and made freely available on GitHub.
Everyone is welcome to contribute to the code and provide feedback about the specification; you do not have to be a Khronos member to participate in the glTF community. Visit the "Ways to contribute to glTF" page in main glTF project on GitHub.
glTF Demo
‘Project “Polly” was produced to introduce all new features from glTF 2.0: Skinning, morphing and Physically Based materials are used in the demo. ‘Poly’ was developed using Blender and is used to test its glTF 2.0 exporter. The original Blender file will be provided to the glTF community for free!’
glTF is the "JPEG of 3D"
glTF 2.0 Scene Description Structure
Metallic-Roughness Material model
baseColor — base color
metallic — metalness
roughness — roughness
Simple to implement - mandated in core
Specular-Glossiness Material model
diffuse — reflected diffuse color
specular — specular color
glossiness — glossiness
Slightly more resources - optional extension
glTF Ecosystem
Industry Support for glTF
glTF™ (GL Transmission Format) is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by applications. glTF minimizes both the size of 3D assets, and the runtime processing needed to unpack and use those assets. glTF defines an extensible, common publishing format for 3D content tools and services that streamlines authoring workflows and enables interoperable use of content across the industry.
Please provide spec feedback by submitting issues. For technical or art workflow questions, or to showcase your work, join the glTF forum. For quick questions, use the #gltf channel in the Khronos Group Slack.
Tools, applications and libraries for working with glTF can be found in the glTF Project Explorer.
Resources
glTF-Generator-Registry - An open registry of tools that create glTF assets, along with structured metadata such as links to documentation and bug trackers.
Formats Built on glTF
3D Tiles - An open standard for streaming and rendering massive heterogenous 3D content.
We believe the true usefulness of glTF goes beyond the spec itself; it is an ecosystem of tools, documentation, and extensions contributed by the community. You are encouraged to get involved!
From github.com/javagl/gltfOverview/ |
PDF |
hardcopy |
Khronos reference cards
