Registration

Web3D Workshop – ”Increasing Accessibility Through Digital Content Standards” Ron Haynes and Vincent Marchetti

Coffee Break

Web3D Tutorial – ”Web3D Publishing Tools and Techniques for all domains” Nicholas Polys, Don Brutzman and Aaron Bergstrom

Lunch

Web3D HAnim Working Group Meeting – ”Discussion of HAnim body, face, garments, accessories, and motion standards development for the metaverse”

Registration

Welcome message

Anita Havele and Nicholas polys

Keynote – Looking backwards and forwards: evolving technology and people for 3D Web

Prof. Don Brutzman

Coffee Break

Paper Session 1 – Rendering and Optimization

• Geometry-aware 3D Gaussian Splatting for View-Dependent Rendering of 3D Head Models – Antoine Boyer, Mohamed Srir, François Le Clerc and Joao Pedro Cova Regateiro
• Parallelized Tabular Data Loading using Web Workers for Hardware-accelerated Visualization Rendering – Willy Scheibel and Jürgen Döllner
• Virtual Mineral Collections Using 3D Gaussian Splatting – Florian Richter, Fabian Bär and Bernhard Jung
• Towards a Structured and Scalable Metadata Framework for Photogrammetric Documentation: Ontological Traceability and Practical Implementation – Vittorio Lauro and Vincenzo Lombardo

Lunch

Paper Session 2 (Short Papers) – Digital Twins and Digital Heritage Tools

• Point Cloud Streaming using Temporal Hierarchical GMMs – Roland Fischer, Tobias Gels, Haya Almaree and Gabriel Zachmann
• The CRREL Permafrost Tunnel Digital Twin: Web3 Applications for Climate Preservation and Arctic Infrastructure Planning – Hollie Leggett, Aaron Bergstrom, Olaf Kuhlke and Steven Rowell
• Reconstruction of the Etemenanki temple tower in Babylon using digital twin and additive manufacturing – Stefan Junk and Felix Mutterer
• Digitally Rebuilding the Past: Using XR, Photogrammetry, and 3D Printing to Interpret Roman Heritage – Lorenzo Barberis, Lorenzo Arena, Talin Talin, Ariann Moretti, Viktor Malakuczi, Vlasios Kasapakis and Ioanni Chatzigiannakis
• Achieving Congruency in Social MR within Heterogenous Spaces: Static Virtual Anchors for Seamless Tabletop Experiences – Fabian Rücker, Arjan Kuijper and Holger Graf
• Towards AI-Driven Digital Twins for Real-Time Optimization of Remote Workspaces for Safety, Comfort, and Ergonomics – Lavinia Chiara Tagliabue and Marco Agus
• Digital Heritage and Active Learning in Practice: The Vitalino Project as a Model for Interdisciplinary Curriculum and Cultural Engagement – Pedro Alessio and Auta Laurentino
• X3Test: A Headless Browser-Based Framework for Automated Performance Benchmarking of X3D/X3DOM Scenes – Nikhil Narra, Anuj Marisetty, Nicholas Polys and Ben Sandbrook

Coffee Break + Posters

Paper Session 3 – XR and VR Applications

• PanoStyleVR: style-based similarity metrics for Web-based immersive panoramic style transfer – Muhammad Tukur, Sara Jashari, Dana Abou Hassanain, Fabi Bettio, Jens Schneider, Giovanni Pintore, Enrico Gobbett and Marco Agus
• AssureXR: An End-to-End Web3D Pipeline for Insurance Claim Management using Mobile LiDAR Scanning and Spatial Documentation – Fabian Rücker, Manuel Olbrich, Andreas Zapf, Eva Meißner, Markus Bockholt, Robin Horst and Arjan Kuijper
• A Cross-Platform, WebGPU-Based 3D Engine for Real-Time Rendering and XR Applications – Alejandro Rodríguez, Pablo Luis García, Juan Sebastián Marquerie, Ricardo Marques and Josep Blat
• Designing for Immersion: A Cross-Platform Evaluation Framework for XR Heritage Storytelling – Janset Shawash, Mattia Thibault and Juho Hamari

Coffee Break

Tutorial 1 – Data-driven Techniques for Immersive WebXR Exploration of Indoor Spaces from Monocular 360 Inputs

Presenters: Marco Agus, Giovanni Pintore and Enrico Gobbetti

Capturing and exploring common indoor environments, such as homes, offices, or public buildings, is essential across fields like architecture, civil engineering, urban planning, and real estate. In this context, 360◦ imagery is attracting lots of interest, since it offers a cost-effective solution for wide scene coverage in a single shot and, when viewed through Head-Mounted Displays (HMDs), it naturally supports 3D exploration via head movements. However, a single panorama remains a flat and static representation. To overcome these limitations, recent efforts in artificial intelligence (AI) have been devoted to the problem of generating editable, immersive 3D representations from a single 360◦ image.

This tutorial presents state-of-the-art techniques for AI-driven scene reconstruction, virtual styling and staging, and their integration into immersive appli- cations using WebXR, supporting stereoscopic vision and motion parallax on standard VR headsets.

Lunch

Workshop 1 – Spatial Synergies – Collaborative Standards Road Map for Sustainable Digital Futures

Presenters: Ronald Haynes, Athanasios Malamos, Vincent Marchetti and Muadh Al Kalbani

This Workshop provides materials and collaborative options for our interconnecting
communities – Web, 3D, IIIF, WebXR, and Digital and Cultural Heritage – to creatively discuss and
share enhanced potentials with current and emergent 3D Web standards. In the session,
attendees will acquire knowledge to trial and leverage Web3D and IIIF and other standards
for 3D visualization of digital heritage and other narratives. By the end of the session,
participants will have gained practical skills and insights to develop inclusive digital content
that meets established accessibility standards, empowering them to create experiences that
cater to a wide spectrum of users and sustainable delivery platforms. This workshop aims to
foster a culture of accessibility within organizations, ensuring that digital content is not only
compliant but also user-friendly, sustainable, and engaging for everyone.

The Web thrives on the collaborative efforts of W3C’s community and working groups, which ensure it remains an accessible and privacy-protective medium. The community’s work enables seamless interoperability across diverse devices and platforms, safeguarding users’ experiences regardless of their abilities or disabilities. This discussion delves into the contributions and current activities of Samsung Research & Development Institute UK in W3C standards across different facets of the Web Platform, highlighting the importance of consensus to develop and maintain web standards and providing an overview of the powerful WebXR Device API that enables immersive experiences over web browsers. The talk will also discuss some of the key accessibility and ethical barriers XR technologies currently face and highlight some of the current efforts by various standardization bodies to improve the accessibility of XR technologies for vulnerable user groups.

Coffee Break + Posters

Tutorial 2 – Web3D Publishing Tools and Techniques for all domains

Presenters: Nicholas Polys, Don Brutzman and Aaron Bergstrom

This tutorial will present introductory and advanced applications of 3D Web technologies to students and experienced practitioners in a hands-on session. Tutorial subjects will include practices, tools and workflows for authoring interactive 3D scenes in cultural heritage applications. By the end of the session, attendees will be empowered to leverage web3D technologies to bring their digital heritage projects to life, fostering a deeper connection between communities and their cultural narratives. Additionally, the tutorial will address the importance of metadata and interoperability in curating digital heritage collections, ensuring that these valuable resources remain discoverable and engaging for diverse audiences. This tutorial will launch from simple tips and tricks to advanced capabilities for creating X3D scenes and publishing.

We will explore cutting-edge platforms and software solutions, including WebGL, glTF, X3D and Blender, that enable the creation of immersive 3D environments. Participants will gain hands-on experience in modeling, rendering, and publishing 3D artifacts, alongside best practices for optimizing user experience across various devices. We will present tools, work flows, pipelines and some examples.

We will cover Blender as a development engine as it’s a free, open-source 3D creation tool for modeling, animation, rendering. In addition, Blender exports to glTF and integrates with game engines. Exporting digital heritage content from Blender to glTF involves a well-defined workflow to ensure accurate geometry, textures, and metadata preservation. X3D can be used to add visual annotation to glTF assets, provide powerful navigation and exploration aids, and combine  assets from multiple sources in a single scene. 

Attendees will also be presented with a demonstration on how to use RawKee Python Edition [1] to export X3D content from Autodesk Maya. RawKee is a new open-source plugin for Autodesk Maya that allows content authors with established content development pipelines to export animated 3D avatars to the X3D format based on the H-Anim Specification [2].

Four presentations make up this tutorial:

1. X3D Introduction, its Ecosystem and Applications.
2. WebGL and glTF
3. Blender 
4. RawKee

Registration

Paper Session 4 – Immersive Applications and Techniques

• TrailView: An Interactive 3D Hike Planning Tool – Julian Andrea Croci, Christian Skorski, Julius Rauscher, Renato Pajarola and Alexandra Diehl
• From Mixed Reality to BIM: A Workflow for the Integration of Immersive Technologies at Architectural Design Process – Juan Sebastian Sardi Barzallo and Volker Coors
• A Generalized Web3D API for Metaverse Bookmarks – Nikhil Narra, Anuj Marisetty, Nicholas Polys and Ben Sandbrook
• Efficient Representation and Web3D Presentation of Panoramic ICH Videos based on AIGC Content Optimization and Hybrid Storage Architecture – Zhang Yanxiang and Yufei Feng

Coffee Break

Paper Session 5 – AI and 3D Data Management

• StreamSplat: A Hybrid Client-Server Architecture for Neural Graphics using Depth-based Fusion on the Web – Sehyeon Park, Yechan Yang, Myeongseong Kim, and Byounghyu Yoo
• Exact Computation for Robust 3D Polyhedral Interactive Modeling – Florent Geniet, Bruno Vallet and Mathieu Bredif
• Comparative Analysis of Downsampling Techniques for Machine Learning on Cultural Heritage Objects – Chrysoula Tzermia and Athanasios Malamos
• Bringing Life to 3D Human Avatars: Integrating Motion and Texture in Real-Time – Sirisha Talapuru, Ram Dantu, Vinh Quach, Shakila Zaman and Apurba Pokharel

Lunch

Workshop 2 – Generative AI for 3D content

Coffee Break + Posters

Web3D Town Hall – 30 Year legacy of Web 3D Graphics , Lighting Talks & Demonstrations

Anita Havele and Nicholas Polys

Use this submission form for Lightning Talks/Demos on Wednesday, 10 Sep 2025

HAnim and Web3D Tools Contest

Paper Awards and Closing Ceremony

Banquet Dinner

CHIOSTRO DI SAN FRANCESCO PIAZZA SAN FRANCESCO, 7

Workshop 3 – Building Sustainable Scenes with Web3D and IIIF 3D and WebXR

Coffee Break

Workshop 4 – 3D Web Interoperability for the Metaverse

Coordinators: Johannes Behr and Nicholas Polys

This workshop will discuss the progress and directions of the 3D Web Interoperability Domain Group from the Metaverse Standards Forum. Web of Worlds – This project to link virtual worlds highlights a compelling analogy between the World Wide Web—a unified system of URL-addressable, interconnected interactive experiences—and what we envision as a cohesive metaverse platform. This envisioned platform comprises numerous addressable and interconnected spatial experiences, or virtual worlds, collectively forming what we call the “Web of Worlds.” Just as websites create a networked digital ecosystem, these spatial-first experiences would interconnect to create a seamless virtual world.

Lunch

Industrial Use-Cases – 3D Web technologies used in industrial applications

• Interactive 3D Visualization of the Seafloor – Mike McCann, Jennifer B. Paduan, David W. Caress, Andreas Plesch and Anita Havele
• AssureXR: Streamlining Insurance Claims through Mobile Data Capture and Interactive Web3D Documentation – Fabian Rücker, Manuel Olbrich, Andreas Zapf, Eva Meißner, Markus Bockholt and Arjan Kuijper
• Industrial Metaverse meets Industrial Dataspaces – Hannes Krug, Christian Stein and Johannes Behr
• BIM, GIS and web-based technologies for asset management: the University of Turin case study – Paola Gasbarri, Silvia Meschini, Giuseppe Martino Di Giuda, Marco Agus and Lavinia Chiara Tagliabu
• Lidar and the Design of a Community-Engaged Digital Heritage Exhibit – Laura Harrison, Brent Ward, Rodney Kite-Powell and Alex Fawbush
• AI and WebXR Technologies for Interactive Virtual Tours based on 360◦ capture: The Doha Design District Case Study – Sara Jashari, Muhammad Tukur, Shaikha Al Sulaiti, Yahya El Sayed, Giovanni Pintore, Enrico Gobbetti, Jens Schneider and Marco Agus

Coffee Break + Posters