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Join the chat at https://gitter.im/KhronosGroup/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.

Specification

Please provide spec feedback and community updates by submitting issues. For quick questions, use gitter.

Quickstart

Overview

From github.com/javagl/gltfOverview/
Japanese translation by Takuto Takahashi

For developers

For artists

Blender exporter for creating and converting models with glTF 2.0.

Preview tools:

Contents

glTF Tools

Converters and Exporters

Tool Input Output Description
Khronos Group Blender Exporter status Official exporter for Blender
3DS Max Exporter status Export glTF files using BabylonJS plugin for 3DS Max 2015 or later
Unity Exporter (Sketchfab fork) status Unity editor wizard that exports to glTF Format
Unity COLLADA & glTF Exporter Unity 5 & Unity 2017 status Commercial unity asset store editor extension to export COLLADA and glTF via collada2gltf
Sketchup export and import status Separate extensions for export and import
PBR extension for SketchUp SKP status PBR Material Editor, glTF Exporter, PBR Viewport
obj2gltf OBJ status Command-line converter
blendergltf status glTF exporter for Blender aimed at streaming scenes to other applications
BlackThread.io converter Multiple status Online drag and drop converter powered by three.js
Assimp Multiple status General-purpose online conversion pipeline
PiXYZ Studio Multiple status Interactively prepare & optimize any CAD data
FBX2glTF (Facebook) FBX status Command-line converter
FBX2glTF (ClayGL) FBX, COLLADA, OBJ status Python tool to convert models to glTF2.0 format, model is parsed by FBX SDK.
glTF API FBX, COLLADA, OBJ status Web API to convert OBJ, FBX and COLLADA files to glTF or GLB
Simplygon Cloud Multiple status Cloud based asset optimization pipeline
Verge3D status glTF 2.0 exporters for Blender and 3ds Max
COLLADA2GLTF COLLADA status Official command-line converter, with updates for glTF 2.0 in progress
Cesium drag-and-drop converter OBJ, COLLADA status Online drag and drop converter
batchgltf COLLADA status Batch converter with GUI
FBX-glTF (Cyrillef) FBX status Plug-in and command-line converter
jgltf-obj OBJ status Java programmatic and command-line converters
Docker collada2gltf COLLADA status Docker container for Python web service, built on COLLADA2GLTF
collada2gltf-web-service COLLADA status Node.js web service, built on COLLADA2GLTF
cqparts STEP status Python CAD for programmers (import / export doc) (GLTFExporter)

Optimizers

Tool Status Description
gltf-import-export status NPM package to convert between glb and gltf files
makeglb status Drag and drop browser tool to convert gltf to self contained binary glb
gltf-toolkit status Collection of tools and libraries to modify and optimize glTF assets for Windows Mixed Reality home
glTF Pipeline status Official Node.js command-line tool for optimizing glTF assets
gltf2glb status Python tool to convert glTF to Binary glTF
binary-gltf-utils status Node.js tool to convert glTF to Binary glTF

Validators

Tool Status Description
glTF Validator status Official command-line and drag-and-top tool to validate glTF assets against the specification

Editors and Modeling Tools

Tool Status Description
glTF VSCode Extension status Cross-platform JSON schema validation and previews for glTF 2.0 and 1.0
Blender Importer status Blender importer for glTF 2.0 (alpha)
Blender Importer status glTF 2.0 Blender Importer

Viewers and Debugging

Tool Status Description
BabylonJS Sandbox status Drag-and-drop online viewer for model preview and debugging, using BabylonJS
three.js glTF Viewer status Drag-and-drop viewer (web and desktop) for model preview and debugging, using three.js
three.js Editor status Editor with drag-and-drop support
Clay Viewer status Drag-and-drop glTF2.0 viewer with high quality rendering and PBR material editing.
glTF Animation Visualizer status Frame-by-frame debugging for glTF animations.
VirtualGIS Viewer status Cesium-based glTF viewer.
GLTFQuickLook status macOS QuickLook plugin for glTF files
glTF Viewer status Android and iOS apps for glTF 2.0 viewing and link sharing: supports embedded glTF 2.0 files and links
DirectX glTF Viewer status DirectX11, C++ desktop app for loading and rendering glTF files

Applications

Application Status Description
Paint 3D by Microsoft status 3D creation tool
Remix 3D by Microsoft status Share and print 3D creations
Facebook status Use .glb files to create 3D Posts
Sketchfab status Platform to publish, share & discover 3D online and in VR
Wordpress (plugin) status Inline glTF renderer for WordPress
Modo by Foundry status 3D modeling, texturing & rendering tools
Substance Painter by Allegorithmic status 3D painting software with glTF 2.0 export
Marmoset Toolbag status 3D real-time rendering, animation, and baking suite
Aspose.3D status File Format APIs for creating, editing, and converting over 100 file formats
3D Slash status Web-based and app-based 3D modeling imitating a stonecutter
Archilogic status Web-based 3D platform for architecture and interiors
Plex.Earth status Connects AutoCAD with Google Earth and the Real World.

Loaders and Viewers

WebGL Engines

To compare WebGL-based glTF loaders, see gltf-test.

Engine Status Scope Related
three.js (loader) status All <gltf-model/> component
BabylonJS (loader) status All
Cesium (loader) status All Drag-and-drop viewer, tutorial
OSG.JS (loader) status All
Grimoire.js (loader) status Geometry and materials, partial animation
Hilo3d (loader) status All Doc
A-Frame (loader) status All Doc
xeogl (loader) status Geometry and materials Tutorial
ClayGL (loader) status All Examples
Verge3D (loader) status All
ReactVR status All
CZPG (loader) status All Examples
PEX (loader) status Geometry and materials
GLBoost (loader) status ? Examples
xml3d.js (loader) status Geometry and materials
X3DOM (loader) status Geometry and materials

WebGL Sample Code

Sample Status Description
Sample glTF loader with WebGL PBR shader status Engine-agnostic reference implementation for PBR shading with WebGL in glTF 2.0 (source code)

Game Engines

Tool Status Description
UnityGLTF status Unity3D library for exporting, loading, parsing, and rendering glTF assets
Godot Game Engine status Godot 3.0 fully supports glTF import
jMonkeyEngine status jME 3.2 supports glTF 2.0

Languages

JavaScript / Node.js

Tool Status Description
gltf-viewer status Web component to display glTF models on a website
minimal-gltf-loader status A minimal, engine-agnostic JavaScript glTF Loader, with a raw WebGL 2 renderer example
THREE.GLTFLoader status Loads glTF assets into a three.js scene.
THREE.GLTFExporter status Exports three.js scenes to a glTF asset
gltf-walker status Convenience library for processing glTF
RedCube.js status glTF viewer without dependencies
gltf-bounding-box status Computes the global bounding box of a gltf model

C++

Tool Status Description
Tiny glTF loader status Header only C++ glTF parsing library, with Alembic→glTF and CyHair->glTF converters
yocto-gltf status Single file, header only, C++ glTF loading/writing automatically generated from the spec
glTF2-loader status C++14 glTF (2.0 only) parsing library, by Lugdunum3D
gltfpp status glTF 2.0 loader for C++14
fx-gltf status A C++14/C++17 header-only library for simple, efficient, and robust serialization/deserialization of glTF 2.0
TGen status Simple C++ Tangent Generator
Microsoft.glTF.CPP status A C++ library for serializing and deserializing gltf/glb files.
Qt 3D status Qt 3D provides functionality for near-realtime simulation systems
Laugh Engine status Vulkan PBR and IBL renderer
Lugdunum3D status A modern cross-platform 3D rendering engine built with Vulkan and modern C++14
UX3D Engine status Cross-platform multi-threaded Vulkan 3D Engine with glTF 2.0 import and export
Cinder status Work-in-progress glTF importer
nvpro-pipeline status Research rendering pipeline by NVIDIA for minimizing CPU cost
AssetKit ? 3D asset importer/exporter/util library
libgltf status glTF 2.0 parser for C++11
libgltf_ue4 status A third-party library for UE4.10+ to load glTF files
glTF for UE4 status A plugin for UE4.10+ to import glTF files

Objective-C

Tool Status Description
GLTFKit status An Objective-C glTF 2.0 loader and Metal-based renderer

C#

Tool Status Description
C# glTF loader status C# reference loader for glTF
Aspose.3D for .NET status Import, export, and convert glTF
MixedRealityToolkit-Unity status A collection of scripts and components intended to accelerate development of applications targeting Microsoft HoloLens and Windows Mixed Reality headsets.

C

Tool Status Description
AssetKit status 3D asset importer, exporter library.

Go

Tool Status Description
gltf status go library for marshaling and unmarshaling glTF

Rust

Tool Status Description
Loader status A crate for loading glTF 2.0
Viewer status glTF 2.0 Viewer written in Rust

Haxe

Tool Status Description
haxe-gltf status A Haxe library for reading glTF

Java

Ada

Tool Status Description
Orka status The OpenGL 4.5 Rendering Kernel in Ada

TypeScript

Tool Status Description
gltf-typescript-generator status CLI to generate a TypeScript interface for glTF

Swift

Tool Status Description
GLTFSceneKit status glTF loader for SceneKit

Utilities

  • gltf-utilities - JavaScript utility library to help load glTF
  • wetzel - Generate Markdown documentation from JSON Schema
  • gltf-enum - Simple site to help work with all the different enums in glTF spec

Stack Overflow

Presentations and Articles

Intros

Tutorials

All Presentations and Articles


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!

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glTF – Runtime 3D Asset Delivery

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