[x3d-public] x3d minutes 20 May 2022: submission of X3D4 Draft International Standard DIS) document nearing completion

[Michalis Kamburelis]

> Mantis 1336, X3D4 Lighting component, 17.4.2 EnvironmentLight - Khronos glTF extension for image based lighting
> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/lighting.html#EnvironmentLight
> Michalis or Dick, can you please confirm whether or not this is part of glTF 2.0 PAS submission to ISO.  If so we will include it, otherwise it is deferred to X3D4.1.

Environment lighting (just like any kind of lighting, actually) is not
part of any glTF spec. I believe I mentioned it numerous times :)

And, in X3D, we're not ready to put this in spec (which is also my
fault -- too little time). My progress is on
https://github.com/michaliskambi/x3d-tests/wiki/Image-Based-Lighting-(EnvironmentLight-node)
. The EnvironmentLight node I propose there is not yet finalized, no
browser (including my own CGE/view3dscene) has actually implemented it
fully so far, I would absolutely veto from including this in spec
(even *if* glTF included it in spec, but it doesn't). It will come,
but we need to work on it more :)

The glTF progress (KHR_lights_environment extension) is in
https://github.com/KhronosGroup/glTF/pull/1956 .

Regards,
Michalis

pt., 20 maj 2022 o 18:32 Brutzman, Donald (Don) (CIV)
<brutzman at nps.edu> napisał(a):
>
> Attendees: Anita Havele, Nicholas Polys, Dick Puk, Don Brutzman
>
>
>
> Announcement.
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>
>
> The Web3D Consortium membership and Board of Directors have unanimously endorsed advancement of the proposed text for X3D version 4.0 Architecture 19775-1 Draft International Specification (DIS) to ISO/IEC JTC 1.  The International Standards Organization (ISO) and International Electrotechnical Commission (IEC) are the controlling authorities for Joint Technical Committee (JTC) 1 which is responsible for this formal standardization process.
>
>
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> X3D version 4.0 follows a long and steady path of standardization, reaching all the way back to the Virtual Reality Modeling Language (VRML) standard in 1997. Balloting by ISO/IEC JTC 1 national standards bodies is the next step in the process, and is expected to take place this summer.
>
>
>
> Mantis technical issues.
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>
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> We are now down to 9 remaining editorial issues for X3D4.0 DIS resolution.  Specification editors Dick and Don are putting finishing touches on this document, in Web3D Consortium github archives, and preparing the formal submission to ISO/IEC.
>
>
>
> Issues and comments we discussed today:
>
>
>
> Mantis 1336, X3D4 Lighting component, 17.4.2 EnvironmentLight - Khronos glTF extension for image based lighting
>
> https://www.web3d.org/member-only/mantis/view.php?id=1336
>
> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/lighting.html#EnvironmentLight
>
>
>
> Michalis or Dick, can you please confirm whether or not this is part of glTF 2.0 PAS submission to ISO.  If so we will include it, otherwise it is deferred to X3D4.1.
>
>
>
> Mantis 1292, Layering component, numbering of z order of layers in LayerSet
>
> https://www.web3d.org/member-only/mantis/view.php?id=1292
>
> https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-CD1/Part01/components/layering.html#LayerSet
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>
>
> Numbering schemes for layers in LayerSet now seem pretty closely aligned to HTML/CSS z order.  Nicholas will take one last close look on this.
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>
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> Next steps.
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> We continue pursuing issues with due diligence, and are excited to be this close to delivery to ISO/IEC.
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>
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> 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
>
>
>
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