[x3d-public] X3D Working Group agenda 20 JAN 2023: comment review for C, C++, C# draft specifications
GPU Group
gpugroup at gmail.com
Thu Jan 19 18:23:37 PST 2023
Web3d Browser Developer Web3d v4 Upgrade Guide
In case you missed it, web3d.org has been working on a version 4 of their
main specification, and here are some tips to get you started:
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-DIS/Part01/Architecture.html
- abstract specs for v4, still a draft and may change a bit.
https://www.web3d.org/x3d/content/X3dTooltips.html
-tootips highlights new v4 nodes and fields in yellow, your best reliable
source for v3.3 to v4 changes.
A. Multi-component changes
1. a triplet of explicit fields for bounding box display, more consistancy
across nodes, meaning some nodes got the fields in v4
- SFVec3f bboxCenter
- SFVec3f bboxSize
- SFBool bboxDisplay
- applied to several nodes for consistency
2. AutoRefresh and AutoRefreshTimeLimit and load fields for nodes that load
URLs.
3. visibility field for nodes with children
4. description field added where appropriate for consistency
5. viewpoints got nearDistance, farDistance, NavigationInfo fields:
Viewpoint, OrthoViewpoint, GeoViewpoint
B. Specific Components
16_Sound Component
- a big upgrade -on the order of 20 new nodes- with web audio standard
equivalent nodes.
Here are some test files for the new sound nodes:
https://www.x3dgraphics.com/examples/X3dForAdvancedModeling/AudioSpatialSound/index.html
12/ Shape Component
PointProperties node and consumer Appearance.pointProperties
AcousticProperties node and consumer Appearance.acousticProperties
You'll need to hack in shader space to get these new materials working:
PhysicalMaterial - so called PBR physics based rendering, a different way
to slice and dice the material values
UnlitMaterial - simplest
Material - old node gets more fields
x TwoSidedMaterial - deprecated, instead all the *Material have a
.backmaterial field
support for loading .gltf / .glb file format via Inline url (or scene url)
to load geometry assets, is an option for implmentors
- gltf has PBR materials which map to our new PhysicalMaterial
17. Lighting Component
lights get shadows, shadowIntensity fields
18. Texturing Component
- MovieTexture.gain and load fields
- All TextureCoordinate*, TextureCoordinateGenerator, TextureTransform*,
TextureTransformMatrix* gets .mapping field
26 Hanim
HAnimMotion new node - takes data in a format that's similar to / a variant
of .bvh format
HanimHumanoid - several new fields
40_ParticleSystem
- ParticleSystem.castShadow
New Components:
42. Texture Projection Component
2 new nodes
TextureProjector
TextureProjectorParallel
On Thu, Jan 19, 2023 at 8:25 AM Brutzman, Donald (Don) (CIV) <
brutzman at nps.edu> wrote:
> 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
>
> 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
> *Sent:* Friday, January 13, 2023 10:40 AM
> *To:* X3D Public Mailing List (x3d-public at web3d.org) x3d-public at web3d.org
> *Cc:* Brutzman, Donald (Don) (CIV) 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
>
> 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
>
>
> _______________________________________________
> x3d-public mailing list
> x3d-public at web3d.org
> http://web3d.org/mailman/listinfo/x3d-public_web3d.org
>
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