[x3d-public] X3D meeting minutes 28 July 2022: X3D4 Scene Access Interface (SAI) review

Fri Jul 29 13:25:32 PDT 2022

I do realize that we may not want to advertise or standardize such
capabilities.

YMMV.

John
On Fri, Jul 29, 2022 at 3:17 PM John Carlson <yottzumm at gmail.com> wrote:

> I’m not saying this too well.   I mean producing XML, JSON or VRML, to use
> with browsers.
>
> I believe we have some Jupyter notebooks showing this.
>
> Enjoy!
>
> John
>
> On Fri, Jul 29, 2022 at 3:01 PM John Carlson <yottzumm at gmail.com> wrote:
>
>> I think there’s a potential 3rd use case for SAI, and that’s for creating
>> views of the model hierarchy, for use with X3DOM and X_ITE.
>>
>> On Fri, Jul 29, 2022 at 12:19 PM Brutzman, Donald (Don) (CIV) <
>> brutzman at nps.edu> wrote:
>>
>>> There was a meeting of X3D Working Group on Friday 29 July 2022 at 09-10
>>> pacific.  Connection information and topics follow.
>>>
>>>
>>>
>>> Attendees: Anita Havele, Doug Sanden, Don Brutzman.  Prior review and
>>> inputs: Dick Puk.  Thanks!
>>>
>>>
>>>
>>>    -
>>>    https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09
>>>    - https://zoom.us/j/148206572  Password 483805
>>>    - https://www.web3d.org/member/teleconference-information
>>>
>>>
>>>
>>>    1. 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.
>>>
>>>
>>>
>>>    - http://freewrl.sourceforge.net
>>>
>>>
>>>
>>>    1. *Web3D 2022* Confirmation (2-4 November 2022, Paris) Call for
>>>    Papers – real soon now!
>>>
>>>
>>>
>>>    - https://web3d.siggraph.org
>>>
>>>
>>>
>>> The* 27th International Conference on 3D Web Technology*, sponsored by ACM
>>> SIGGRAPH <https://www.siggraph.org/> in cooperation with the Web3D
>>> Consortium <https://www.web3d.org/>, is hosted by Telecom SudParis
>>> <https://www.telecom-sudparis.eu/>.
>>>
>>>
>>>
>>> Important dates:
>>>
>>>
>>>
>>>    - https://web3d.siggraph.org/important-dates
>>>    - *Saturday 30 July*:      Papers and Interactive Posters
>>>    - *Monday August 29: *Tutorials, Industrial Use Cases, Workshops,
>>>    Competition.
>>>
>>>
>>>
>>> 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.
>>>
>>>
>>>
>>>    1. SIGGRAPH activities: multiple big events this week!
>>>
>>>
>>>
>>>    1. *Web3D Ecosystem and the Metaverse - SIGGRAPH 2022 BOF*
>>>
>>>
>>> https://www.web3d.org/news-story/web3d-ecosystem-and-metaverse-siggraph-2022-bof
>>>
>>> https://s2022.siggraph.org/presentation/?id=bof_136&sess=sess335
>>>
>>> https://www.web3d.org/event/web3d-bof-siggraph-2022
>>>
>>> https://twitter.com/Web3DConsortium/status/1553065575512911876
>>>
>>> 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 (HAnim), 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.
>>>
>>>
>>>
>>>    1. *ACM SIGGRAPH Cartographic Visualization (Carto) Birds of a
>>>       Feather*
>>>
>>> https://s2022.siggraph.org/presentation/?id=bof_101&sess=sess155
>>>
>>> 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.
>>>
>>>
>>>
>>>    1. *Immersive Visualization for Research, Science and Art*
>>>
>>> https://s2022.siggraph.org/presentation/?id=bof_128&sess=sess328
>>>
>>> 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.
>>>
>>> Tomasz Bednarz, NVIDIA and William Sherman, NIST
>>>
>>>
>>>
>>>    1. *Annual ISO/IEC JTC-1 SC24 meeting – progress report*.
>>>
>>>
>>>
>>> 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.
>>>
>>>
>>>
>>>    1. X3D4 Scene Access Interface (SAI) Review
>>>
>>>
>>>
>>> Our “specification mosaic” diagram shows how all the many X3D-related
>>> specifications fit together.
>>>
>>>
>>>
>>>    - X3D Graphics Standards Relationships
>>>    -
>>>    https://www.web3d.org/specifications/X3dGraphicsStandardsRelationships.png
>>>
>>>
>>>
>>> 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++.
>>>
>>>
>>>
>>>    - Information technology — Computer graphics, image processing and
>>>    environmental data representation — Extensible 3D (X3D) —
>>>    - Part 2: Scene access interface (SAI) ISO/IEC 19775-2:2015
>>>    - https://www.web3d.org/documents/specifications/19775-2/V3.3
>>>    - 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.
>>>    - 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.
>>>
>>>
>>>
>>> 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
>>>
>>>
>>>
>>>    -
>>>    https://www.web3d.org/specifications/X3dSaiReviewCommentsJuly2022.reduced.pdf
>>>    (14MB)
>>>
>>>
>>>
>>> Under consideration, of general interest for future discussion:  can we
>>> help distinguish between different primary use cases, namely
>>>
>>>    1. Browser services (the current primary emphasis),
>>>       2. Script node source code (sorta implicit), and
>>>       3. Simple subset API used for model creation and authoring, no
>>>       live browser interactions needed.
>>>
>>>
>>>
>>> If we get clearer about those three use cases, it may help all of our
>>> X3D SAI APIs be clearer and more useful.
>>>
>>>
>>>
>>> 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.
>>>
>>>
>>> Thanks for all input and participation.
>>>
>>>
>>>
>>> Have fun with finishing Web3D 2022 papers/posters, watching SIGGRAPH
>>> videos, and (deep breath) X3D4 SAI review!  8)
>>>
>>>
>>>
>>> all the best, Don
>>>
>>> --
>>>
>>> Don Brutzman  Naval Postgraduate School, Code USW/Br
>>> brutzman at nps.edu
>>>
>>> Watkins 270,  MOVES Institute, Monterey CA 93943-5000 USA
>>> +1.831.656.2149
>>>
>>> X3D graphics, virtual worlds, Navy robotics https://
>>> faculty.nps.edu/brutzman
>>>
>>>
>>> _______________________________________________
>>> x3d-public mailing list
>>> x3d-public at web3d.org
>>> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>>>
>>
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