GlTF tagged news

Khronos Finalizes glTF 1.0 SpecificationKhronos announced that the glTF™ 1.0 (GL Transmission Format ) royalty-free specification for transmission and loading of 3D content has been finalized for Ratification and is immediately available for use by tools and application vendors. glTF is an efficient, interoperable asset delivery format that compresses the size of 3D scenes and models, and minimizes runtime processing by applications using WebGL™ and other APIs. glTF also defines a common publishing format for 3D content tools and services.

During this virtual AR Community meeting on Thursday October 15, 2015 participants will learn about the status of the Khronos Group glTF specification, experiences with implementation and we will discuss the role of glTF in reducing the complexity and bandwidth of compressing and transmitting 3D assets for use in AR experiences. Presenters will share the work the Khronos Group members are doing, trends in use of glTF and how this will impact AR. Speakers include: Neil Trevett, VP NVIDIA and President Khronos Group; Patrick Cozzi, Cesium and Marius Preda, Institut Telecom Sud-Paris.

Next week Patrick Cozzi will be giving a talk on the state of WebGL and glTF at the Graphical Web conference. He will have some exciting progress to share on glTF, and he also wants to capture the state of the entire WebGL ecosystem. If you are working on a WebGL engine, tool, or browser/driver/platform, and want Patrick to include an update for it, please contact him with the details by the morning of Friday September 18th. The slides will be posted online afterwards.

Cesium uses the web-friendly glTF format for 3D models. Cesium provides an online COLLADA-to-glTF converter that allows us to drag and drop a COLLADA model and its textures to produce a glTF model for use in Cesium. This blog post is a series of tips for authoring 3D models and then exporting them to COLLADA to get the best performance and robustness.

The COLLADA to glTF converter online tool allows you to convert your COLLADA models to glTF for use with Cesium. Simply drag-and-drop your COLLADA file (.dae) and any images it references by zipping them together. A self-contained glTF file will be downloaded once the conversion is finished, and a model preview will be shown below.

Cesium is an open-source JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin. It uses WebGL for hardware-accelerated graphics and glTF for 3D models. Version 1.0 includes support for worldwide high-resolution terrain; global imagery from standards such as WMS and Bing Maps; vector data from GeoJSON and TopoJSON; and a large geometry library.

Build 3D applications with the WebGL-based MontageJS 3D componentMontageJS has introduced a new WebGL-based component for the MontageJS framework. The 3D view component for MontageJS offers an abstraction layer for WebGL and aims to make the individual elements of a 3D scene just as easy to manipulate as conventional HTML elements in the page DOM. If your browser has WebGL enabled, you can try out a demo here. The MontageJS 3D view component is designed to load and display glTF content. The COLLADA working group provides Mac and Windows open source converters to translate COLLADA files into glTF.

Dr Rémi Arnaud from AMD offers a great review the WebGL community and a round up of just how fast WebGL is catching on, from SIGGRAPH 2013. "The SIGGRAPH 2013 WebGL BOF definitely had the kind of energy and vibrant community that I took for granted when at Silicon Graphics, but have since learned is rare. WebGL is an enabler;" writes Remi.

The COLLADA Work Group invites you to attend the COLLADA/glTF BOF at SIGGRAPH 2013. The meeting will be on Wednesday July 24th at 2PM in the California Ballroom A&B at the Hilton Anaheim. There is a great line up for speakers, news and presentations.

  • glTF updates and roadmap
    Fabrice Robinet - COLLADA Working Group Chair
  • OpenCOLLADA upgrade
    Uli Klumpp - Smith Micro
  • COLLADA and AutomationML
    Fabrice Robinet - COLLADA Working Group Chair
  • Integrating glTF and Three.js
    Tony Parisi - SkyBox Networks
  • glTF in Cesium
    Patrick Cozzi - Analytical Graphics Inc. and University of Pennsylvania
  • Rest 3D
    Remi Arnaud - AMD