Gltf tagged stories

In June 2024, the Khronos 3D Formats Working Group released the glTF 2.0 Interactivity draft extension (KHR_interactivity) for public review and comment. Now, thanks to valuable community feedback and almost a year of continued development, we are nearing the finish line on releasing KHR_interactivity together with a set of companion extensions. These extensions provide a straightforward, standardized method for embedding interactive behaviors directly within glTF 3D assets, enabling developers to create engaging 3D experiences with consistent interactive functionality across different platforms and applications. As we prepare to submit the glTF interactivity extensions to the Khronos Board for ratification, we are seeking final input from early adopters. We invite content creators, artists, implementers, and engine developers to explore and experiment with the openly available tools and sample assets to integrate interactive glTF content into their projects.

Google delivers a wide range of continuously evolving hardware products to a vast global audience. Google’s smartphones, smart watches, earbuds, tablets, smart home devices and more are sold through the Google Store and physical and digital third-party retail vendors around the world. As a global brand known for breaking new ground with AI, smart home, and personal device experiences, Google is faced with a significant challenge: creating engaging, effective product training and marketing materials that work anywhere in the world.

On Tuesday, January 22, the Metaverse Standards Forum (MSF) hosted a virtual town hall to explore a pressing question: Are Gaussian Splats (GS) ready for standardization? The event drew hundreds of participants and sparked a lively debate. Already, the conversation is slated to continue at MSF’s “Gaussian Splats Town Hall Part 2” on March 5, 2025.

The Khronos 3D Formats Working Group is developing a new addition to the glTF ecosystem that will revolutionize how complex 3D scenes are built on the Web. While glTF, the widely-adopted asset open standard for 3D web content, typically handles one asset at a time, this addition will enable creators to efficiently combine multiple glTF assets into sophisticated scenes. The 3D Formats Working Group is still weighing whether this project will ultimately be released as a glTF extension or an entirely new format. For the purposes of this blog, we will discuss it as the latter: the “glTF External Reference Format.” 

The glTF Sample Viewer is an essential part of the glTF ecosystem. Developed by the Khronos 3D Formats Working Group, this open-source JavaScript viewer highlights the latest features of glTF, renders glTF files directly in a web browser, and can be easily integrated into other JavaScript projects using glTF. Working closely with UX3D, a software company specializing in 3D rendering and user interfaces, Khronos has released version 1.1 of the Viewer, offering substantial functionality and usability improvements. In this blog, we’ll explore the new features of the glTF Sample Viewer 1.1 and share insights on how we’ve made it easier to integrate Sample Viewer into web applications.

This year, the Khronos 3D Formats Working Group has reached several significant milestones along the roadmap for developing glTF into an interoperable spatial computing format, and has several extension development efforts underway. Many key extensions for spatial consistency, improved material rendering and consistent render fidelity have now reached the Review Draft stage, where they are ready for detailed review and initial testing. There are also several new extensions in the Initial Draft phase, where the Working Group is seeking directional input to ensure specification development aligns with the community’s needs. We are cranking and getting work done! This blog will review recent ecosystem updates, explain current specs nearing release candidacy, and highlight opportunities for community input, inviting glTF stakeholders to share useful feedback to shape the future development of the glTF ecosystem.

Standards development is a highly collaborative undertaking within and across standards development organizations (SDOs). We are active in both 3GPP and MPEG working groups, and our work on mobile applications for 3GPP inspired us to tackle an emerging challenge within MPEG: interactive scene description for XR applications. Ultimately, our search for a scene description format that could be used for last-mile XR scene description and

Today, the Khronos 3D Formats Working Group is pleased to announce that the glTF 2.0 Interactivity Extension (KHR_interactivity) specification draft is available for public review and feedback before ratification. This new extension uses behavior graphs, enabling content creators to add logic and behaviors to glTF assets, with a focus on safety, portability and ease of implementation.

In a world where 3D content creation and distribution are rapidly evolving, the need for seamless interoperability and shared standards has never been more critical. That's why the Alliance for OpenUSD (AOUSD) and Khronos Group have signed a liaison agreement to align and enhance OpenUSD and glTF technologies. This liaison marks a significant step towards unified 3D asset creation and deployment, streamlining the process for developers and end-users alike.

glTF is the most portable and accessible asset format for bringing 3D content to diverse platforms, including the web. This open, royalty-free specification minimizes the runtime processing to unpack and process 3D assets, while also supporting sophisticated graphics functionality, rich textures, and diverse materials. Broad industry support for glTF includes adoption of glTF 2.0 as an ISO/IEC International Standard. Now, Khronos is pleased to announce an open-source native iOS app, “Khronos glTF Viewer,” that enables users to view and interact with glTF assets on iOS devices, including in AR. This app is distinct from the glTF Sample Viewer, the official browser-based reference viewer from Khronos. Rather, it is squarely focused on bringing glTF viewing capabilities to iOS devices, bridging a crucial gap for the “JPEG of 3D” and hastening a future where content creators can deploy glTF assets on any target platform. “Khronos glTF Viewer” is live on the Apple App Store with source code immediately available on GitHub under the Apache 2.0 license; developer participation and feedback is welcome

Attendees at the Khronos Fast Forward Birds of a Feather Session at SIGGRAPH 2023 At SIGGRAPH 2023, Khronos hosted a series of packed-house Birds-of-a-Feather (BoF) sessions exploring the latest updates and future developments for glTF, the open-standard 3D format that allows content creators to build an asset once and use it everywhere. Standing-room-only gatherings of content creators, platform providers and tool vendors discussed new glTF cap

The glTF™ open standard 3D asset format from the Khronos Group enables online retailers and adtech platforms to enhance their interactive customer experiences with runtime-efficient, 3D product models. With the latest glTF PBR (Physically Based Rendering) material extensions, artists can create incredibly detailed and realistic assets – but in many cases, they’ve been held back by concerns about how these assets would perform on the web due to large texture sizes. Today, Khronos is releasing the open source glTF-Compressor tool for interactively optimizing and fine tuning texture compression settings, to help users adjust their 3D assets for optimal web delivery.

Despite its convenience, online shopping for hardware products and home goods lacks many of the charms of the physical, in-person shopping experience. When you see a product with your own eyes, you can more readily imagine what it looks like in your living room, garage, backyard, or wherever you need it. This visualization process plays a highly influential role in consumer purchasing decisions.

Streamlining the asset creation pipeline for 3D Commerce and beyond! Model & texture. Public Domain or CC0Image: Copyright ©2023, The Khronos Group, Inc CC-BY 4.0 Online retailers and adtech platforms are increasingly enabling 3D interaction on their sites and apps to increase customer engagement. These companies need to ingest 3D product models from a wide variety of sources, including suppliers, brands, and manufacturers, and many have

There are many approaches to creating realistic-looking materials for 3D objects. However, not all of them are suitable for transmission over the Web, and many have a prohibitively steep learning curve. Physically Based Rendering (PBR) has emerged as an artist-friendly, intuitive, expressive, and robust technique for adding materials to 3D objects. The Khronos 3D Formats Working Group has embraced this approach, and over the past few years, they have created formal glTF extensions for a variety of PBR materials. glTF’s growing set of PBR material extensions allow artists to create strikingly realistic 3D objects – suitable for cross-platform applications including browsers, mobile devices, native applications and more – that will perform consistently across a wide range of viewers and devices.