[x3d-public] X3D Working Group minutes 20 JAN 2023: HAnim issues, browser coverage X3D4 comment review for C, C++, C# draft specifications
Brutzman, Donald (Don) (CIV)
brutzman at nps.edu
Fri Jan 20 18:18:21 PST 2023
We met today for regular weekly meeting.
Attendees: John Carlson, William Glascoe, Dick Puk, Doug Sanden, Don
Brutzman. Regrets Anita Havele.
Still hoping to get a volunteer to help list missing nodes and fields in the
X3D4 cross-reference table. Great learning opportunity, pretty easy - simply
compare spec to index and note what is missing.
* X3D4 Annex Z, version content
*
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/
versionContent.html
1. We discussed recent plethora of comments by John regarding HAnim.
Color me overloaded. Thanks Joe for support and insights.
Suggested next steps:
a. Baseball strategy: "small ball." Focus on pairwise Joint-Segment
problems, simple, one at a time.
b. Likely culprits are incorrect/misplaced names in example scenes.
c. If there is a mistake in content, or misdiagnosis of a correct
pairing, that small effort is now isolated and fixable.
Team sport, "art of the possible too." Thanks for all efforts.
2. Doug has shared interesting guidelines for Web browser developers.
Thank for super emerging resource for developers working on addition of X3D4
capabiltiites.
Some possible improvements for tooltips: should we add component links?
Most tabs are organized by nodes.
* 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
Clarification to Javascript column:
* Can existing open-source JavaScript library exemplars (such as
X3DJSONLD, X3DOM and X_ITE) be considered in creation of a X3D JavaScript
SAI? Yes, conceptually, also good for comparison.
* Following our existing successes, common-denominator patterns can be
regularized to guide our autogeneration capabilities and exactly match
JavaScript SAI standard? Yes, someday.
* The X3D JavaScript SAI implementation need to be designed
consistently with the draft X3D JSON encoding. Despite delays in JSON Schema
standard, our encoding rules seem quite workable and stable.
* X3D to JSON Stylesheet Converter
* The X3D to JSON stylesheet converts .x3d XML to .json, supporting
the forthcoming JSON Encoding for X3D Graphics.
* https://www.web3d.org/x3d/stylesheets/X3dToJson.html
We explored different techniques for sorting, labeling and updating
spreadsheet rows and columns. Probably best approach is to simply sort rows
on the last tab and compare.
Congratulations again Doug on FreeWRL browser having greatest reported
coverage of X3D4 specification!
We will continue to address guidance for browser and tool implementers next
week. Thank you Doug for your excellent start on guidelines!
3. We briefly discussed C, C++, C# comments. We will address these
further next week.
a. Special thanks to Doug Sanden for quick-turn review of comments on
these specifications, also to Vince Marchetti.
b. Still TODO: entering concise summaries of all recent C C++ C#
comments in Web3D Mantis Issue Tracker.
c. Since ISO Draft International Status (DIS) ballot comments are now
at editorial stage, all of these comments can be consideredin next round of
specification editors' review.
d. Since these drafts are X3D version 3.3, three New Work Item
Proposal (NWIP) documents for 4.0 versions of the C, C++, C# specifications
is appropriate for revisions of each. Those drafts might be prepared after
the current revision is complete.
e. The Web3D Board of Directors endorsed this effort, and looks forward
to continuing progress with X3D 4.0.
f. A signficant omission and deficency of the current specifications is
that they do not have two or more implementations available.
g. Please note that all new specifications must follow Web3D process.
We do not expect further deviations from that policy to be approved, so
renewed efforts are needed to build those implementations. TODO add link)
No Web3D member-confidential information is included in these minutes.
Thanks everyone for steady progress. another great week for X3D4! Yes we
are having fun now. 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
From: Brutzman, Donald (Don) (CIV)
Sent: Thursday, January 19, 2023 7:25 AM
To: X3D Public Mailing List (x3d-public at web3d.org) <x3d-public at web3d.org>
Cc: brutzman at nps.edu
Subject: X3D Working Group agenda 20 JAN 2023: comment review for C, C++, C#
draft specifications
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:
a. Encourage consistent rendering, interaction and usage for the many
tremendous capabilities in X3D4.
b. 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
2. 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.
3. 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.
4. 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.
5. 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.
6. 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
<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
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