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What is glTF?

glTF™ is a royalty-free specification for the efficient transmission and loading of 3D scenes and models by engines and applications. glTF minimizes the size of 3D assets, and the runtime processing needed to unpack and use them. glTF defines an extensible, publishing format that streamlines authoring workflows and interactive services by enabling the interoperable use of 3D content across the industry. glTF 2.0 has been released as the ISO/IEC 12113:2022 International Standard.

glTF Latest News: Helping to Make 3D Pervasive!

Tweak texture compression parameters

July 2023

glTF-Compressor - New Tool to Optimize 3D Assets

Interactively tune texture compression size and quality optimize performance and memory. Learn More

Introductory frame from glTF tutorial series

July 2023

New Series of glTF 'How to' Video Tutorials

New Tutorials help glTF developers use PBR Clearcoat, Transmission & Volume properties. Learn More

KTX Logo

June 2023

Updated KTX Libraries and Tools

KTX v4.3.0 includes updates to libktx YUV and stencil support, HDR payload support and much more. Learn More

Shoe glTF Model

March 2023

New glTF Asset Auditor Tools Enhances Asset Validation

Configurable open source tool released to help validate 3D assets and enable consistent and rigorous QA. Learn More

blender glTF graphic

January 2023

Blender glTF I/O Adds Support for Latest PBR Materials

Blender 3.3 upgrades glTF I/O support of glTF PBR to include a wider range of material extensions. Learn More

glTF 2.0 released as an ISO/IEC International Standard

Transposition to ISO/IEC 12113 solidifies glTF’s global recognition and adoption as a 3D asset format

glTF™ 2.0 has been released as the ISO/IEC 12113:2022 International Standard. Khronos successfully completed the transposition of glTF 2.0 through the ISO/IEC JTC 1 PAS (Publicly Available Specification) process to solidify glTF’s global recognition and accelerate its adoption by industry and other standards. Khronos will continue to evolve glTF and will regularly update ISO/IEC 12113 with proven, widely available glTF functionality to avoid industry fragmentation.

PRESS RELEASE

Join the glTF Community

The 3D Formats Working Group welcomes feedback from implementers, engine developers, content creators, and artists to influence glTF’s evolution, and there are several ways to follow the latest glTF developments, get questions answered and make suggestions for improvement.

Any company that wishes to participate directly in the 3D Formats Working Group, which is responsible for the glTF, KTX and COLLADA specifications, can join the Khronos Group for access to all its standardization activities. The 3D Formats group works closely with the 3D Commerce Working Group which brings together industry-leading e-commerce companies to enable the seamless design, manufacture, and presentation of 3D products across diverse consumer platforms to reach millions of end-users.

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Interactive glTF Demo

This is a live demo of Damaged Helmet , by Leonardo Carrion using <model-viewer> . Use your mouse or trackpad to move the view or zoom in or out. This model was originally published under a CC BY-NC 2.0 license.

glTF is the "JPEG of 3D"

glTF is the JPEG of 3D

 

glTF 2.0 Scene Description Structure

glTF Ecosystem

glTF 3D Asset Formats Ecosystem

Industry Support for glTF

Publicly stated support for glTF