Cyrille Fauvel will present a short overview of the glTF format – a specification for the efficient transmission and loading of 3D scenes and models by applications – followed by a more detailed discussion and demonstration of the FBX to glTF converter that he has recently created.
This is a C# reference loader for glTF. It's as simple to use as Interface.LoadModel("PathToModel.gltf"). You can use this loader in your project by importing the "glTF Loader" NuGet package. Additional examples can be found in the gltfLoaderUnitTests project.
Cesium announce the release of Cesium 1.15. Highlights include: Support for glTF 1.0 and the KHR_binary_glTF and KHR_materials_common extensions. Also, updated the online model converter to output glTF 1.0; Decreased GPU memory usage in BillboardCollection and LabelCollection by using WebGL instancing; New CZML examples thanks to Tiff Lu and Adam Cole from the University of Pennsylvania.
Khronos 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.
The Khronos Group has added another Request For Quote (RFQ). This one is to update the glTF three.js loader on GitHub to reflect the latest versions of the glTF specification and three.js library, and to drive feedback into the final glTF 1.0 specification. Complete details for glTF, OpenGL ES, SPIR-V and OpenVX RFQs available online.
CesiumJS just released a demo streaming over 135,000 buildings in Washington, DC using tiles of glTF in Cesium. The demo is fairly fast and there are more optimizations to come. Over 135,000 measurement-quality structures with rooftops from CyberCity 3D.
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.
LibreOffice 4.3 now supports inserting 3D models in the glTF format into presentations (using libgltf). Currently this feature is only available for Linux and Windows. There is also limited support for 3D models in .dae and .kmz formats using collada2gltf.
Khronos is proud to share that Amobee, the company defining digital advertising relies on glTF as part of its workflow to create immersive 3D mobile ads with its cutting-edge Amobee 3D technology. Check it out!
Cesium has introduced full support for glTF models. A demo with example aircraft, ground vehicle, and character models is available. There is also a tutorial on how to use the Cesium API for glTF, and a tool to convert COLLADA to glTF (based on COLLADA2GLTF).