[x3d-public] X3D Working Group Agenda 28 OCT 2019: X3Dv4

Fri Oct 18 04:18:40 PDT 2019

> Date: Fri, 18 Oct 2019 10:33:55 +0000
> From: "Brutzman, Donald (Don) (CIV)" <brutzman at nps.edu>
> To: X3D Graphics public mailing list <x3d-public at web3d.org>
> Cc: X3D Graphics Working Group <x3d at web3d.org>
> Subject: [x3d-public] X3D Working Group Agenda 28 OCT 2019: X3Dv4
>         issues review
>
> ==================================
>
> The X3D Graphics Working Group addresses all X3D specification issues and coordinates the technical development of future improvements.
>         http://www.web3d.org/working-groups/x3d
>
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>
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> Teleconference information appears below.
>
> ==================================
>
> 1. *Agenda check*.  What else, please?
>
> Recent minutes:
>
> [1] [x3d-public] X3D minutes 11 OCT 2019: Web3DUX, semantics progress, implementations status, mantis issues, texture/material, X3D-Edit
>        http://web3d.org/pipermail/x3d-public_web3d.org/2019-October/011347.html
>
> [2] [x3d-public] X3D minutes 4 OCT 2019: X3D-glTF review, defer Annotations, Layout component, #X3Dv4 implementations/issues update
>        http://web3d.org/pipermail/x3d-public_web3d.org/2019-October/011315.html
>
> ==================================
>
> 2. *Carryover issue: material, textures, lighting*
>
> > a. Good discussion on interplay between materials and textures is occurring on both the X3DOM and X_ITE mailing lists.  [...]
> >
> > * X3DOM conversation
> >    https://github.com/x3dom/x3dom/issues/993
> >
> > * X_ITE conversation
> >    https://github.com/create3000/x_ite/issues/50
>
> Is this driving to closure satisfactorily? Are precise changes expected for X3Dv4?

x3dom has been updated to be more spec. complaint and tries to detect
if an image texture is greyscale from the image itself now.

Michalis has good language for precise changes which would much
simplify image texture and color mixing by always just multiplying.
x3dom would likely support this change. Probably x-ite as well since
it makes implementations and reasoning easier.

> We must have consistent rendering well defined.

Currently, it is not very well defined. The changes would make it more
consistent with other graphics systems.

>
> ==================================
>
> 3. *Carryover issue: features and nodes*
>
> > b. X3DOM and X_ITE have added some navigation types and other special features.  Some features will also be part of SAI, for example getting screen-space coordinates.  We need to expose these inside any X3D model so that authors work to best effect with HTML5.  These need to be considered and proposed publicly to get on the X3D Working Group agenda prior to 16 DEC 2019.
> >
> > The community has to live with the results... the community should *Step Up to Help* !!  This is a real opportunity for authors and implementers to speak out, helping to elevate important new candidate capabilities.
>
> Nobody has stepped up yet.  Navigation types and other geometry nodes sure seem like low-hanging fruit.

I gather this issue is mostly with respect to VR navigation ? I am not
sure what this issue is about.

>
> Seems like a real opportunity for someone to unlock major latent improvements for future authors and users.
>
> Am willing to spend meeting time to review once a suggestion list has been posted publicly.
>
> ==================================
>
> 4. *X3Dv4 Issues Review*
>
> We will go though the Mantis issues tracker to assign tags to issues that need to be tracked as part of X3Dv4 efforts.
>
> [3] Mantis Issue Tracker (requires 2 sets of member login)
>      https://www.web3d.org/member-only/mantis/view_all_bug_page.php
>
> [4] X3D Version 4 Overview
>      https://www.web3d.org/X3D4
>
> [5] X3Dv4 Highlights
>      http://www.web3d.org/x3dv4-highlights
>
> [6] X3Dv4 Implementations Status
>      http://www.web3d.org/x3dv4-implementations
>
> ==================================
>
> 5. *Teleconference Information*
>
> We have switched to Zoom channel, to good effect.  It allows use of internet audio, screen sharing and chat with links.
>
> We meet regularly on Fridays 0800-0930 pacific.  To join the teleconference:
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> ==================================
>
> Lots of effort continues.  Only 7 weeks left until we close the X3Dv4 contributions window on 16 DEC 2019.
>
> [7] Sounds of doors slamming
>      http://www.findsounds.com/ISAPI/search.dll?keywords=door+slam
>
> Please consider how you are helping... there are things TODO for everyone.
>
> 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 http://faculty.nps.edu/brutzman
>
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> End of x3d-public Digest, Vol 127, Issue 38
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-- 
Andreas Plesch
Waltham, MA 02453