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2023 SIGGRAPH Banner
August 6-10, 2023
JW Marriott, Los Angeles, California

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Khronos Group BOF Series at SIGGRAPH 2023

Khronos standards are fundamental to many of the technologies on display at SIGGRAPH. Look for the latest updates to many of our standards at the Khronos BOF Day on Wednesday, August 9th at the JW Marriott LA Live and throughout the show! 

Watch on YouTube

On Wednesday evening, The Khronos Group and the Metaverse Standards Forum are co-hosting a Networking Reception (Sponsored by Cesium & LunarG) at the JW Marriott in Platinum BallroomC from 7-9 pm.  We hope you can join us!  Details are listed below.  Please note that BOF days and times are subject to change.

If you plan to attend the Networking Reception, please RSVP today!

Khronos Group Sessions

Khronos Fast Forward

Monday, August 7: 12:00-1:00 pm PDT
Location: Los Angeles Convention Center (Room 514)
Description: Developers everywhere rely on Khronos open standards for cross-platform, high-performance 3D graphics, AR/VR, parallel computation, vision processing, machine learning acceleration and more. Khronos is a member-funded consortium, that any company or university can join. Come and hear the very latest updates from the Khronos working groups that are creating the standards to enable your next application or project!    

  • Neil Trevett (Khronos Group President/ NVIDIA): Fast Forward, WebGL, ANARI Updates
  • Tom Olson (Vulkan WG Chair/ Arm): Vulkan Update
  • Cristina Scheibler (Dimenco): Open XR Update
  • Alexey Medvedev (3D Formats WG Chair/ Meta): 3D Formats Update
  • Dan Frith (3D Formats Vice Chair/ Avataar): 3D Commerce Update

Geometry, Textures, and Workflow - Optimizing glTF

Tuesday, August 8: 8:30-10:00 am PDT
Location: Los Angeles Convention Center (Room 513)
Description: Discover cutting-edge techniques to optimize glTF content for real-time presentation.  Learn how to streamline your workflow while preserving essential information. The panel will address various methods to reduce file and GPU memory size including geometric compression, texture compression, texture baking, geometric simplification, and intelligent node structure organization - all without compromising visual quality. Learn to balance file size and visual fidelity for optimal performance across platforms.

We encourage attendees to share their own experiences and problems with optimization so it can be discussed by the panelists and other attendees.       

  • Max Limper (DGG)
  • Adam Morris (Cesium)
  • Pawel Nikiel (DGG)
  • Andreas Vasilakis (Phasmatic)

glTF Complex Scenes & Interactivity

Tuesday, August 8: 10:00 - 11:00 am PDT
Location: Los Angeles Convention Center (Room 513)
Description: Khronos is expanding and extending glTF to support complex scenes and interactivity. This session will start with an attendee discussion of the diverse use cases for these capabilities before diving into the intricacies of the interactivity and complex scenes. Gerald Guyomard from Adobe will discuss the various challenges and innovative solutions involved in defining interactivity in a file format. Leonard Daly will discuss the capabilities that are being developed to support complex scenes for geospatial, commerce, mobile, and other application areas;  empowering the creation of complex scenes & Dan Frith will explore use cases, sharing how the 3D Formats (glTF) and 3D Commerce Working Groups are exploring the importance of complex scenes in e-commerce and other industries using glTF. Don't miss this opportunity to stay at the forefront of glTF advancements.

  • Leonard Daly (Daly Realism)
  • Gerald Guyomard (Adobe)
  • Dan Frith (3D Formats Vice Chair/ Avataar)

Exploring the Artistic Frontier: Unleashing Creativity in 3D Models with glTF and PBR

Tuesday, August 8: 11:00 am - 12:00 pm PDT
Location: Los Angeles Convention Center (Room 513)
Description: The artistic creation of realistic materials in real-time 3D models in glTF using physically-based rendering (PBR) is discussed and demonstrated. Attendees will gain valuable insights into the best practices, workflows, and optimizations required to simulate iridescent, anisotropy, and other effects and to achieve stunning visual realism for 3D assets. We will discuss the techniques used and available tools to achieve these effects.

Attendees are encouraged to ask questions, share their own solutions, and prepare their own topics for informal discussions of issues they face in their own workflows and techniques to help them create PBR materials for glTF and beyond.

Presenter: Eric Chadwick (Wayfair)

Let's Get Moving: Adding Physics to glTF

Tuesday, August 8: 3:00 - 4:00 pm PDT
Location: Los Angeles Convention Center (Room 513)
Description: Unlock the true power of glTF! Immerse yourself in the world of physics-based properties and witness the remarkable transformation of this versitile format. Join us for an exhilarating BOF where we unveil the cutting-edge advancements in glTF Physics and Occlusion extensions development.  Discover how these long awaited features elevate glTF to new heights, revolutionizing a multitude of applications. Don't miss out on this opportunity to delve into the future of glTF evolution.

Presenter: Alexey Medvedev (Meta)

ANARI: The Industry’s First Portable Rendering Engine API

Wednesday, August 9: 10:00 - 11 am PDT
Location: JW Marriott LA Live, Platinum Salon D
Description: ANARI is the industry's first cross-platform API to describe scenes independently of rendering techniques, giving practioners in domains such as scientific visualization the ability to rapidly access the latest rendering engines without needing to be low-level graphics experts. Join researchers, developers, and industry experts as they share insights on ANARI's capabilities, discuss best practices for ANARI applications, and showcase innovative use cases. Don't miss this chance to understand ANARI's potential for shaping the future of scientific visualization and any application that needs high-level access to 3D rendering.
Presenter: Bill Sherman (National Institute of Standards and Technology)

OpenXR: Enabling Cross-Platform VR/AR Experiences

Wednesday, August 9: 11 am- 12 pm PDT
Location: JW Marriott LA Live, Platinum Salon D
Description: OpenXR is the widely adopted open standard for portable virtual and augmented reality. Discover how OpenXR is transforming the landscape of cross-platform XR development, empowering creators and innovators to deliver seamless, high-quality experiences across a wide range of devices. Engage in lively discussions as we explore the latest advancements, challenges, and best practices in leveraging OpenXR's versatile framework. This BOF offers a unique opportunity to network, exchange ideas, and stay at the forefront of the ever-evolving XR ecosystem.

  • Cristina Scheibler (Dimenco)
  • Steve Winston (Holochip)
  • Andrew Apodaca (Holochip)

glTF: Transforming 3D Asset Delivery for Real-Time Graphics

Wednesday, August 9: 1:00-3:00 pm PDT
Location: JW Marriott LA Live, Platinum Salon D
Description: glTF is the game-changing open standard for pervasive transmission and runtime display of 3D assets. This BOF will delve into glTF's powerful capabilities and the impact it has on the industry. Engage in dynamic discussions with industry leaders and enthusiasts, exploring the latest developments, challenges, and creative applications of glTF, including advanced PBR and upcoming scene, interactivity and physics capabilities. Whether you're a 3D developer or artist, this BOF provides an exceptional opportunity to network, learn, and contribute to the ever-evolving glTF ecosystem.

  • Alexey Medvedev (3D Formats Chair/ Meta)
  • Dan Frith (3D Formats Vice Chair/ Avataar)
  • Ed Mackey (PBR Chair/ AGI)
  • Patrick Hadley (Body Chair/ Snap)
  • Gerald Guyomard (Interactivity/ Adobe)
  • Leonard Daly (Khronos Group/ Daly Realism)

Vulkan, Forging Ahead

Wednesday, August 9: 3:00-6:00 pm PDT
Location: JW Marriott LA Live, Platinum Salon D
Description: Seven years after its introduction, Vulkan continues to evolve to serve the needs of high-performance graphics applications. Join us for the latest news from the Vulkan Working Group and members of the Vulkan community, including new Vulkan features and future direction, new tools and techniques for developing Vulkan applications, teaching Vulkan to University students, and new and exciting industrial-strength applications of Vulkan.

  • Tom Olson (Vulkan WG Chair/ Arm): Vulkan Update
  • Karen Ghavam (Lunar G): Vulkan SDK and Ecosystem Tools
  • Lukas Lipp (TU Wien) & Bernhard Kerbl (INRIA): Teaching Vulkan
  • Henrik Edstrom (Autodesk): Vulkan and Open Source Graphics at Autodesk
  • Mauricio Vives (Autodesk): Vulkan Ray Tracing in Aurora- An Open Source Real-Time Path Tracer
  • Vipul Kapoor (Autodesk): Vulkan for Cross-Platform Viewing of Large AEC Models
  • Jasmin Roy (Autodesk): Porting Autodesk Flame from OpenGL to Vulkan
  • Hai Nguyen (Independent): Debugging in Vulkan Ray Tracing

Khronos Group and Metaverse Standards Forum Networking Reception

Sponsored by Cesium, Epic Games, and LunarG

Wednesday, August 9: 6:00-9:00 pm PDT
Location: JW Marriott LA Live, Platinum Salon C
Description: Join the Khronos Group and the Metaverse Standards forum for a networking reception at the JW Marriott LA Live from 6-9pm on Wednesday! Meet members of both organizations and enjoy a cold beer after a long day of BOFs. Come see live demos in action and make some new connections.

All are welcome to attend!

Sponsorship Opportunities are still available for our evening networking reception. Please contact [email protected] for additional information.

Siggraph 2023 Sponsors

Standardizing Body Attachment Points for 3D Commerce Virtual Try On

Thursday, August 10: 10:00-11:00 am PDT
Location: Los Angeles Convention Center (Room 518)
Description: In today's rapidly evolving digital landscape, virtual try-on (VTO) has emerged as a new frontier for the retail industry. Creating digital clones of your products in AR offers customers an immersive and interactive way to evaluate your products. VTO capabilities are evolving the digital shopping experience from 'Does this look good?' to 'Does this look good ON ME?'. Currently, a lack of consistent standards has caused challenges in both accurate placement and interoperability of assets across companies. This panel will present newly proposed glTF extensions associated with eyewear, footwear, and jewelry, while further discussing challenges around 3D apparel
Presenter: Patrick Hadley (Snap)

Additional Related Sessions 

The State of 3D Asset Interoperability using USD and glTF

Monday, August 7: 10:30-12:00 pm PDT
Location: Los Angeles Convention Center (Room 514)
Description: The Metaverse Standards Forum 3D Asset Interoperability Domain Group is enabling cooperation between the USD and glTF communites to build synergies and reduce overlaps, gaps, fragmentation, and industry confusion. Developers building tools and platforms with USD and integrating the popular glTF standard will share the state of these 3D initiatives and how they can benefit each other. Join us to explore expanding the scope of 3D asset definitions to include behaviors, sound, physics, and scene composition and discuss how different standards organizations, open source projects, and commercial companies are converging towards a shared material representation for the open metaverse.       

  • Patrick Cozzi (Cesium)
  • Guido Quaroni (Adobe)
  • Henrik Edstrom (Autodesk)
  • Eric Haines (NVIDIA)
  • Marc Petit (Epic Games, Metaverse Standards Forum)

Labs Hands-On Class: Use NVIDIA Nsight Tools to Debug and Profile Vulkan Ray Tracing Applications

Sunday, August 6: 2:00-3:30 PDT
West Building (Rooms 150-153)
Description: In this hands-on class, you'll learn how to use NVIDIA Nsight Graphics and Nsight Systems to profile and optimize 3D applications that use Vulkan ray tracing. You’ll explore an example application to learn how to:

  • Take advantage of modern GPUs and properly feed the graphics pipeline
  • Identify GPU bottlenecks that degrade performance by inspecting low-level metrics
  • Analyze profiler data and understand what actions you should take
  • Optimize some example workloads to achieve peak performance

Upon completion, you should be able to use this knowledge to create workflows that can help you to improve your own applications.

  • Aurelio Reis (NVIDIA)
  • Jeff Kiel (NVIDIA)

Capture & Replay with Vulkan & DX12: GFXReconstruct

Monday, August 7: 3:00-4:30 pm PDT
Location: Los Angeles Convention Center (Room 518)
Description: Looking for a versatile developer tool to help you capture and debug traces? This session will highlight GFXReconstruct 1.0, an open-source capture and replay tool for Vulkan and DX12 developed by LunarG and several Khronos partners.  We'll introduce GFXReconstruct, explain how to use it, and provide multiple demos.  Advanced topics will include: 1) running validation with replay, 2) inspecting captured calls in human-readable form, 3) capturing Vulkan on Android, 4) capturing DX12, 5) replaying Vulkan captures on other platforms (and discussing limitations), and 6) reviewing more options and how to use them.  Join us to learn more!
Presenter: Brad Grantham, LunarG

The Vulkan Computer Graphics API

Tuesday, August 8: 9:00-12:00 pm PDT
Location: Los Angeles Convention Center (Room 515 B)
Description: Vulkan is a new generation of graphics API that provides high-efficiency, cross-platform access to modern GPU hardware in a wide range of devices. As such, this API is of interest to everyone who writes interactive graphics programs and wants to eke out the fastest performance possible.
Presenter: Mike Bailey (Oregon State University)

Vulkan Development in Apple Environments

Wednesday, August 9: 9:00-10:30 am PDT
Los Angeles Convention Center (Room 518)
Description: Interested in using the Vulkan API over Metal? The Khronos Vulkan Portability implementations are enabling flexible API choices for developers. MoltenVK is a Vulkan implementation layered on Apple's Metal API.  This presentation will share an overview of MoltenVK and how to use Vulkan in the Apple environment.  The Vulkan SDK supports macOS, IOS, and tvOS. Join us as we review this solution, help you to understand how to use it, and answer your questions.

  • Bill Hollings, Brenwill Workshop
  • Richard Wright, LunarG

Star Trek Through the Ages: ”The Roddenberry Archive”- Achieving Interoperability in the Metaverse

Wednesday, August 9: 3:30-5:00 pm PDT
Location: Los Angeles Convention Center (Room 513)
Description: OTOY presents a technical deep dive into "The Roddenberry Archive": a multi-decade project to preserve the complete visual history of Star Trek and Gene Roddenberry's creative works through emerging interactive holographic, spatial and 3D media formats.  The presentation will cover key open standards being used today, such as glTF, WebXR, the HTML tag and Immersive Technologies Media Format (ITMF) and how the team is working to further ensure long term interoperability and portability of the archive's materials for decades to come.


  • Jules Urbach (OTOY)
  • Mark Peters (OTOY)

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