Gltf tagged stories

Recently, the Khronos 3D Commerce Working Group hosted a webinar to discuss its activities, including why industry alignment on the glTF file format (the “JPEG for 3D”) is crucial, and how standardization will bring new opportunities to any designer, retailer, manufacturer or technology company developing 3D experiences. At the end of the webinar, the audience submitted questions for panelists. As this dialogue benefits the whole community, we’re sharing the answers as a Q&A. You can watch the complete webinar recording, but this is not a verbatim transcription: The questions have been reordered for a logical flow, and additional data released since the webinar has been added. If you have questions of your own, comment below and we’ll be sure to get back to you!

In the world of e-commerce, many products come in different options, or variants. When shopping online, for example, colors and materials of a brand of shoe might have an image representing each option. And now, in addition to using 2D images, more and more retailers are starting to use 3D and AR to merchandise products in online channels to enable customers to more fully experience products or view items in their environment in rich 3D. Each time a customer views a different colored shoe, there’s a good chance that another complete 3D model is being loaded just to display that color variant. This leads to increased download times and wasted bandwidth as the files contain a lot of redundant data, including downloading exactly the same geometry multiple times. In turn this causes increased memory usage on the device, and slower interactivity, resulting in a poor customer experience. Learn how the Khronos Group and the 3D Commerce working group is improving this.

The Khronos 3D Commerce™ Working Group was established with the goal of spearheading industry alignment on the creation, management and display of 3D content for e-commerce—and since its formation, the use cases for 3D assets in e-commerce have rapidly expanded. In response, the 3D Commerce Working Group has today released V1.0 of its Realtime Asset Creation Guidelines for use by 3D artists who are familiar with 3D workflows, but new to creating e-commerce 3D assets for cross-platform delivery.

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In this guest blog, Norbert Nopper, Managing Director at UX3D, discusses editing glTF models and introduces a new visual glTF editor, Gestaltor. Norbert discusses how to directly edit glTF models and when that may lead to higher productivity when creating 3D models. Starting with a brief introduction to glTF and common workflows and discussing the possibilities and challenges involved in directly editing glTF asset files. Wrapping up with examples of how direct glTF editing may save you time production pipeline.

ASTC (Adaptable Scalable Texture Compression) is an exceptionally efficient compression technology, which allows encoding of a wide variety of texture formats at bit-rates of 8 bits per pixel to below 1 bit per pixel. ASTC was contributed by Arm, developed under the cooperative process at Khronos® and is royalty-free when used with Khronos’ OpenGL® ES and Vulkan® APIs. ASTC enables the size of textures used in 3D games and applications to be significantly reduced while being downloaded and stored – saving memory size, access bandwidth and reducing overall application size while retaining high image quality. These benefits are especially valuable on mobile platforms leading to ASTC becoming the most widely used texture compression format for Vulkan and OpenGL ES applications on Android.

glTF™ is a Khronos royalty-free specification for the efficient transmission and run-time loading of 3D scenes and models by engines, browsers and applications. glTF minimizes both the size of 3D assets and the runtime processing needed to unpack and use them. glTF has become widely adopted throughout the industry, becoming the equivalent of a ‘JPEG for 3D’. glTF is used by hundreds of content tools and services, streamlining 3D authoring w

As the “JPEG of 3D,” glTF™ from Khronos® has made a big impact in the world of 3D, enabling the efficient transmission and loading of 3D scenes and models by applications. Cesium, a platform for creating 3D applications that are fast, flexible, and based on real-world geospatial data, has used glTF extensively to further its mission of empowering developers and data providers to build web-based 3D map experiences, and now Cesium has teamed with Uber to continue expanding its 3D Tiles ecosystem, built on glTF.

In 2016, the Uber Visualization team released an open source version of deck.gl and luma.gl, two Khronos Group WebGL™-powered frameworks for visualizing and exploring huge geospatial data sets on maps. Since then, the technology has flourished into a full-fledged suite of over a dozen open source WebGL and GPGPU data visualization libraries and tools, known collectively as vis.gl. loaders.gl, the newest addition to the vis.gl family, adds support for loading and rendering glTF™ assets across the tech stack. This unlocks the ability to include rich 3D content within data visualization applications built using luma.gl and deck.gl, enabling a variety of interesting new use cases. In this post, we’ll show some applications and walk through how you can use deck.gl and glTF, Khronos’ open standard 3D file format, to quickly create a geospatial data visualization that renders tens of thousands of 3D models.

Earlier today, Google and Binomial announced that they have partnered to open source a sophisticated texture compressor and a high-performance transcoder for Binomial’s cross-platform Basis Universal texture format. This format can help solve a long-standing problem in the 3D ecosystem: how can 3D textures assets be efficiently packaged or transmitted for an application in a way that is both compact AND can be efficiently processed by the wide diversity of GPU hardware texture engines - each of which has a preferred native format?

To jointly advance accessibility of 3D geospatial content, The Khronos Group recently formalized a liaison with the Open Geospatial Consortium(OGC). One of the first victories of this collaboration between the computer graphics and geospatial communities is a new OGC Community Standard addressing massive scale 3D pioneered by longtime Khronos contributors, the Cesium team.

The demand for 3D content is growing quickly across markets. New formats, applications, and tools are being developed to keep up with the demand . TurboSquid has been eagerly watching the development of the glTF 2.0 specification and has now added full support for the format for its StemCell initiative, which standardizes how 3D models are built and makes buying a 3D model as easy as buying a stock photo.

Facebook’s recent adoption of glTF 2.0 enables its users to place and see 3D content in their News Feeds, underscoring the social media platform’s plan to enable users to bring 3D objects and assets with them across AR, VR, mobile, and web experiences — using open standards. Facebook’s prominent support for glTF is already stimulating the creation of innovative tools to generate glTF content, such as Sony 3D Creator, Oculus Medium, and Foundry Modo.
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