[x3d-public] X3D Working Group agenda 20 JAN 2023: comment review for C, C++, C# draft specifications

Thu Jan 19 07:24:55 PST 2023

We meet at our regular time tomorrow, 0900-1000 pacific Friday 20 JAN.

First we will briefly review updates to the following important status resource, discussing next steps.

  *   Updated. X3D Node Inventory Comparison<https://www.web3d.org/specifications/X3dNodeInventoryComparison.xlsx> (.pdf<https://www.web3d.org/specifications/X3dNodeInventoryComparison.pdf>) shows node-by-node implementation coverage of the X3D Abstract Specification: validation using X3D Schema, X3D DOCTYPE, and X3D Schematron; X3D Tooltips and VRML97 node sets; plus selected open-source implementations: FreeWrl, X3DOM, X_ITE, view3dscene (Castle Game Engine), X3D-Edit, Xj3D.
  *   https://www.web3d.org/specifications/X3dNodeInventoryComparison.xlsx
  *   https://www.web3d.org/specifications/X3dNodeInventoryComparison.pdf

Our primary goal is to review all comments on the C, C++, C# draft specifications and ensure they are captured appropriately in the Web3D Consortium Mantis Issue Tracker. Results will be submitted to ISO.

All participation is welcome.  Last week's minutes attached for convenience.  Have fun with X3D! 8)

all the best, Don
--
Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu<mailto: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

From: Brutzman, Donald (Don) (CIV) brutzman at nps.edu<mailto:brutzman at nps.edu>
Sent: Friday, January 13, 2023 10:40 AM
To: X3D Public Mailing List (x3d-public at web3d.org<mailto:x3d-public at web3d.org>) x3d-public at web3d.org<mailto:x3d-public at web3d.org>
Cc: Brutzman, Donald (Don) (CIV) brutzman at nps.edu<mailto:brutzman at nps.edu>
Subject: X3D Working Group minutes 13 JAN 2023: refined goals, ISO specification updates, X3D4 implementation upgrade guidelines?

Happy Friday 13th everyone!  (bwa ha ha...)

Today we held our regular weekly meeting of X3D Working Group, Friday 13 January 2023 at 09-10 pacific.  Connection information and topics follow.

  *   https://us02web.zoom.us/j/81634670698?pwd=a1VPeU5tN01rc21Oa3hScUlHK0Rxdz09
  *   https://zoom.us/j/148206572  Password 483805
  *   https://www.web3d.org/member/teleconference-information

Attendees: Anita Havele, Nicholas Polys, Dick Puk, Doug Sanden, Don Brutzman.

  1.  Goal statement review.  Our primary activities for X3D Working Group in 2023 are focused on broad and correct deployment.  Refined:

  1.  Encourage consistent rendering, interaction and usage for the many tremendous capabilities in X3D4.
  2.  Update ISO specifications and implementations for multiple programming languages and file encodings to match X3D4.

The dozen corresponding standards to receive these updates are illustrated as follows:

  *   X3D Graphics Standards Relationships
  *   https://web3d.org/specifications/X3dGraphicsStandardsRelationships.png

  1.  Milestone: X3D4 Architecture Finalization.

Last Tuesday we held a totally successful ISO Editors meeting for X3D4 Architecture Draft International Specification (DIS).  ISO review and approval deliberations continue.

Today we reviewed progress, changes and next steps following.  Almost finally, finally done locking in all details...

  *   X3D4: Extensible 3D (X3D) Part 1: Architecture and base components, ISO/IEC 19775-1:2022
  *   https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/Architecture.html

  *   Mantis Issue Tracker
  *   https://www.web3d.org/member-only/mantis/view_all_bug_page.php

Mantis issues are being updated to track all of the agreed-upon ISO changes correctly.

Given the formally approved list of X3D4 Architecture changes, we can finally proceed with document editing.  Next step is to apply CSS-markup highlighted changes to the current DIS source for group review.

Proposed github location for that draft:

  *   Web3D Consortium GitHub Archive
  *   https://github.com/Web3dConsortium
  *   https://github.com/Web3DConsortium/X3D/tree/master/ISO-IEC19775/ISO-IEC19775-1/ISO-IEC19775-1v4.0/ISO-IEC19775-1v4-DIS
  *   ISO-IEC19775-1v4-ProposedIS will be new directory location, eventual rename to "IS" once accepted by ISO

X3D schema, DTD, X3DUOM, X3DJSAIL updates in progress, so far so good.  Have applied most validation-related changes.  Initial recapitalization/dehyphenization of Web Audio-related enumerations to follow.

Forward thinkers can rest assured that no good ideas regarding X3D evolution that didn't "make the final ISO cut" are getting lost.  All future possibilities will continue to be tracked in Mantis and designated as future X3D 4.1.

  1.  Web3D Review of C, C++, C# draft standards for X3D 3.3.

Deadline is imminent, we intend to review all comments next week.  Based on that review, X3D Working Group will make a recommendation to Web3D Board of Directors regarding Consortium and community inputs on specification readiness.

  1.  Preparing for Outreach.

We discussed how to communicate the soon-to-happen approval of X3D 4.0 by ISO, including possible testimonials by members, implementers, authors, users, Standards Development Organization (SDO) partners, et al.

All testimonial statements are welcome.  Web3D Consortium Executive Director Anita Havele to participate.

  1.  X3D Node Inventory Comparison.

We took another look at this spreadsheet, let's prepare to regularly update.  Multiple other assets can also be used by implementers to support upgrading to X3D4.

  *   X3D Specifications: Schema and DOCTYPE Validation
  *   https://www.web3d.org/specifications
  *   These assets are commonly used for XML validation of X3D scenes, and in-depth documentation is also provided here.

  *   X3D Node Inventory Comparison (.pdf) shows node-by-node implementation coverage of the X3D Abstract Specification: validation using X3D Schema, X3D DOCTYPE, and X3D Schematron; X3D Tooltips and VRML97 node sets; plus selected open-source implementations: FreeWrl, X3DOM, X_ITE, view3dscene (Castle Game Engine), X3D-Edit, Xj3D.
  *   https://www.web3d.org/specifications/X3dNodeInventoryComparison.xslx (master in version control)
  *   https://www.web3d.org/specifications/X3dNodeInventoryComparison.pdf
  *   This will be updated to X3D 4.0 latest, with changes highlighted in yellow

  *   X3D Tooltips 4.0 also highlights all changes in yellow
  *   https://www.web3d.org/x3d/tooltips/X3dTooltips.html
  *   For example, Anchor tooltips:
  *   https://www.web3d.org/x3d/tooltips/X3dTooltips.html#Anchor

  *   The X3D4 Architecture specification itself also reveals specific changes to nodes and fields, from versions 3.0, 3.1, 3.2, 3.3 and 4.0:
  *   X3D4 Architecture, Annex Z, Version Content
  *   https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/versionContent.html
  *   For example, looking at Anchor node, you can see in rightmost column that v4.0 adds load, bboxDisplay, autoRefreshTimeLimit etc.

Suggested: should we create an X3D4 Migration Guide to help implementers?  Seems like an excellent idea, also "rings true" with our initial goal statements today.

Volunteers please?  Creating some form of X3D4 Migration Guide checklist to assist implementers might be quite useful.  Also an excellent professional opportunity for experts and consultants to demonstrate (and upgrade) their expertise.

  1.  All other business.

Good discussions on download statistics (X3D-Edit, FreeWrl) and a variety of other topics... we're having fun now!

As ever, many thanks for the work of many contributors.  Deep breath... wow.

No Web3D member-only information is included in these minutes... but please do note: several valuable items documented here have Web3D member-only access.

Consortium membership has value!  Please consider joining.

  *   Join the Web3D Consortium
  *   https://www.web3d.org/join

Have fun with X3D4!   8)

all the best, Don
--
Don Brutzman  Naval Postgraduate School, Code USW/Br        brutzman at nps.edu<mailto: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

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

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