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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>There was a meeting of X3D Working Group on Friday 29 July 2022 at 09-10 pacific. Connection information and topics follow.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Attendees: Anita Havele, Doug Sanden, Don Brutzman. Prior review and inputs: Dick Puk. Thanks!<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoPlainText style='mso-list:l1 level1 lfo1'>https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09 <o:p></o:p></li><li class=MsoPlainText style='mso-list:l1 level1 lfo1'>https://zoom.us/j/148206572 Password 483805 <o:p></o:p></li><li class=MsoPlainText style='mso-list:l1 level1 lfo1'>https://www.web3d.org/member/teleconference-information <o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=1 type=1><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level1 lfo6'>Doug Sanden described a lot of work he has going on with FreeWrl code review, upgrading for X3D4. Expect to hear more on the mailing list as he progresses.<o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l1 level1 lfo1'>http://freewrl.sourceforge.net<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=2 type=1><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level1 lfo6'><b>Web3D 2022</b> Confirmation (2-4 November 2022, Paris) Call for Papers – real soon now!<o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>https://web3d.siggraph.org<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#6B7C93;background:white'>The<strong><span style='font-family:"Open Sans",sans-serif'> 27th International Conference on 3D Web Technology</span></strong>, sponsored by </span><a href="https://www.siggraph.org/" target="_blank"><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#03A9F4;background:white'>ACM SIGGRAPH</span></a><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#6B7C93;background:white'> in cooperation with the </span><a href="https://www.web3d.org/" target="_blank"><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#03A9F4;background:white'>Web3D Consortium</span></a><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#6B7C93;background:white'>, is hosted by </span><a href="https://www.telecom-sudparis.eu/" target="_blank"><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#03A9F4;background:white'>Telecom SudParis</span></a><span style='font-size:12.0pt;font-family:"Open Sans",sans-serif;color:#6B7C93;background:white'>.<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Important dates:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>https://web3d.siggraph.org/important-dates<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'><b>Saturday 30 July</b>: Papers and Interactive Posters<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'><b>Monday August 29: </b>Tutorials, Industrial Use Cases, Workshops, Competition.<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Authors are invited to submit original work presenting fundamental research, practice and experiments, or novel applications, in all areas of 3D graphics on the web and related topics therein.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=3 type=1><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level1 lfo6'>SIGGRAPH activities: multiple big events this week!<o:p></o:p></li></ol><p class=MsoListParagraph style='margin-left:.25in'><o:p> </o:p></p><ol style='margin-top:0in' start=3 type=1><ol style='margin-top:0in' start=1 type=a><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'><b>Web3D Ecosystem and the Metaverse - SIGGRAPH 2022 BOF<o:p></o:p></b></li></ol></ol><p class=MsoListParagraph style='margin-left:.75in'>https://www.web3d.org/news-story/web3d-ecosystem-and-metaverse-siggraph-2022-bof<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>https://s2022.siggraph.org/presentation/?id=bof_136&sess=sess335<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>https://www.web3d.org/event/web3d-bof-siggraph-2022<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>https://twitter.com/Web3DConsortium/status/1553065575512911876<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>Join the Web3D Consortium for a discussion on how our technology contributes to the Metaverse. From Interactive Real-Time 3D, to Mixed Reality and Humanoid Animation<span style='font-size:11.5pt;font-family:Roboto;color:#0D0D0D;background:white'> (HAnim)</span>, everything we do in 3D is significant to an open Metaverse. See how our members are scaling expertise in 3D, Modeling and Simulation, Geospatial, Augmented Reality, and Web Audio towards an open, interoperable Metaverse. Our extensible 3D presentation layer brings 3D content from different domains from across the WWW into rich, interactive 3D worlds.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'><o:p> </o:p></p><ol style='margin-top:0in' start=3 type=1><ol style='margin-top:0in' start=2 type=a><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'><b>ACM SIGGRAPH Cartographic Visualization (Carto) Birds of a Feather<o:p></o:p></b></li></ol></ol><p class=MsoListParagraph style='margin-left:.75in'>https://s2022.siggraph.org/presentation/?id=bof_101&sess=sess155<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>The ACM SIGGRAPH Cartographic Visualization (Carto) session explores how viewpoints and techniques from the computer graphics community can be effectively applied to cartographic and spatial data sets. Speakers demonstrate their latest tools and application efforts.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'><o:p> </o:p></p><ol style='margin-top:0in' start=3 type=1><ol style='margin-top:0in' start=3 type=a><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'><b>Immersive Visualization for Research, Science and Art<o:p></o:p></b></li></ol></ol><p class=MsoListParagraph style='margin-left:.75in'>https://s2022.siggraph.org/presentation/?id=bof_128&sess=sess328<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>Traditionally, this session is on immersive visualization systems for science and research, scientific visualization information visualization, art and science. Invited speakers and panel discuss newest initiatives and developments in visualization space. Presentations included Nicholas Polys on durability of X3D.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:.75in'>Tomasz Bednarz, NVIDIA and William Sherman, NIST<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=4 type=1><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level1 lfo6'><b>Annual ISO/IEC JTC-1 SC24 meeting – progress report</b>.<o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Under discussion, for all hours of day/night interspersed over a 4-week period, are many topics. X3D4, Smart Cities, VR/AR/MAR/XR, virtual/augmented reality health and safety, more. Next week will see finalization of committee conclusions and recommendations.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0in' start=5 type=1><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level1 lfo6'>X3D4 Scene Access Interface (SAI) Review<o:p></o:p></li></ol><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Our “specification mosaic” diagram shows how all the many X3D-related specifications fit together.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>X3D Graphics Standards Relationships<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>https://www.web3d.org/specifications/X3dGraphicsStandardsRelationships.png<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>With the X3D4 Draft International Standard (DIS) complete and undergoing national-body balloting by ISO/IEC, it is time to turn our sights on X3D4 SAI. This document forms the abstract-API reference and common basis for numerous other X3D APIs including EcmaScript (JavaScript), Java, Python, C, C#, C++.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>Information technology — Computer graphics, image processing and environmental data representation — Extensible 3D (X3D) —<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>Part 2: Scene access interface (SAI) ISO/IEC 19775-2:2015<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>https://www.web3d.org/documents/specifications/19775-2/V3.3<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>X3D is a file format and related access services for describing interactive 3D objects and worlds. X3D is designed to be used on the Internet, intranets, and local client systems. X3D is also intended to be a universal interchange format for integrated 3D graphics and multimedia. X3D may be used in a variety of application areas such as engineering and scientific visualization, multimedia presentations, entertainment and educational titles, web pages, and shared virtual worlds.<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>This part of ISO/IEC 19775 defines the scene access interface that can be used to interact with X3D worlds both from within the worlds or from external programs.<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Based on review/revision of X3D SAI 3.3 in 2015, led by Dick Puk and myself for Web3D and ISO, this document is pretty mature. I have performed a careful document review, available at<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l4 level1 lfo3'>https://www.web3d.org/specifications/X3dSaiReviewCommentsJuly2022.reduced.pdf (14MB)<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Under consideration, of general interest for future discussion: can we help distinguish between different primary use cases, namely<o:p></o:p></p><ol style='margin-top:0in' start=5 type=1><ol style='margin-top:0in' start=1 type=a><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'>Browser services (the current primary emphasis),<o:p></o:p></li><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'>Script node source code (sorta implicit), and<o:p></o:p></li><li class=MsoListParagraph style='margin-left:-.25in;mso-list:l2 level2 lfo6'>Simple subset API used for model creation and authoring, no live browser interactions needed.<o:p></o:p></li></ol></ol><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If we get clearer about those three use cases, it may help all of our X3D SAI APIs be clearer and more useful.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Request all interested parties look over this comments review. Next go-forward step will be putting X3D4 SAI into Github version control for Web3D Consortium members.<o:p></o:p></p><p class=MsoNormal><br>Thanks for all input and participation.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Have fun with finishing Web3D 2022 papers/posters, watching SIGGRAPH videos, and (deep breath) X3D4 SAI review! 8)<o:p></o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>all the best, Don<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>X3D graphics, virtual worlds, Navy robotics https://</span> <span style='font-size:10.0pt;font-family:"Courier New"'>faculty.nps.edu/brutzman<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>