[x3d-public] X3D Working Group meeting, 13 June 2018: VR Hackathon, Web3D 2018 Conference, HAnim DIS, regexes, containerField, github specs

[Don Brutzman]

1. Attendees Dick Puk, Vince Marchetti, Don Brutzman.  Regrets: Vince Marchetti and Anita Havele (who is preparing the way for VR Hackathon this weekend.)

Prior meeting:

	X3D teleconference 5 JUN 2018 minutes: HAnim DIS, X3D Regex, Web3D 2018 and X3Dv4
	http://web3d.org/pipermail/x3d-public_web3d.org/2018-June/008926.html

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2. *VR Hackathon*

	17-19 June 2018, Poznan University of Economics and Business
	http://vrhackathon.web3d.org
	http://vrhackathon.web3d.org/poznan-2018-06

Tweet:	Real Soon Now: @vrhackathon VR Hackathon 17-19 June 2018, Poznan University of Economics and Business,
	starts Sunday evening through Tuesday evening awards reception. *Create, make, connect, see, interact, hack!*
	http://vrhackathon.web3d.org/poznan-2018-06
	http://vrhackathon.web3d.org/wp-content/uploads/2018/06/VR-Hackathon-social-media-3-768x488.png

Nicholas will soon be posting "VR HACKATHON: Web3D Consortium Challenge" that includes many prizes! to the public lists, we will also tweet it.

Mitch Williams of Samsung sends regrets, he has had to cancel his travel and participation this time.  If anyone else plans to use Samsung GearVR at the hackathon, please let Amela Sadagic and I know/help.

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3. *Web3D 2018 Conference*

Tweet:	https://twitter.com/Web3DConsortium/status/1006937785738059777

	Real Soon Now: Web3D 2018, 23rd International @ACM @SIGGRAPH Conference on 3D Web Technology.
	20-22 June 2018, Poznań University of Economics and Business, Poland in cooperation with @EuroVRAssoc and @thekhronosgroup.
	Co-located @vrhackathon 17-20 June https://web3d2018.web3d.org

A stellar program awaits!  https://web3d2018.web3d.org/program

Don will be presenting on X3D Version 4 opportunities, this topic is really beginning to accelerate.  We will reiterate an updated version of these strategic opportunities at SIGGRAPH. Everyone is invited to keep current on the summary of developments emerging at

	X3D Version 4
	http://www.web3d.org/x3d4

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4. *Humanoid Animation (HAnim) Draft International Specification (DIS)*

We are happy to report that the final round of HAnim DIS submitted by specification editors got excellent review feedback by Web3D Consortium members and Board of Directors.

We are having an HAnim Working Group teleconference this evening, 1700 pacific / 2000 eastern (Thursday morning Korea).  Today's call will review H-Anim Part 1 Architecture, H-Anim Part 2 Motion data animation, H-Anim competition 2018/2019.

We will also review recent progress in X3Dv4 support for HAnim, specifically HAnimHumanoid and HAnimMotion nodes, as listed/linked in last week's minutes.

Potential discussion topic at Web3D Conference: how can various semantic techniques map HAnim to SNOWMED, FMA, etc.  There will be future benefits to medical techniques if we become adept at cross-referencing joints and segments in human anatomy.

	SNOMED Clinical Terms CT
	https://en.wikipedia.org/wiki/SNOMED_CT

	Foundational Model of Anatomy (FMA)
	http://si.washington.edu/projects/fma
	https://en.wikipedia.org/wiki/Foundational_Model_of_Anatomy

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5. *Regular expresssions (regexes)*

Thanks to Andreas Plesch, John Carlson, Leonard Daly and Joe Williams for great dialog on x3d-public community mailing list to improve X3D regexes for validating numeric values.  Multiple mail threads are ongoing as we continue improving these sophisticated techniques for improving X3D content.

	 X3D Regular Expressions (regexes)
	http://www.web3d.org/specifications/X3dRegularExpressions.html

	[x3d-public] X3D Regex
	http://web3d.org/pipermail/x3d-public_web3d.org/2018-June/008927.html

Latest versions of regex updates are now published, regularly updated and testable in

	X3D Unified Object Model (X3DUOM)
	http://www.web3d.org/specifications/X3DUOM.html

	http://www.web3d.org/specifications/X3dUnifiedObjectModel-4.0.xml
and
	X3D Java Scene Access Interface Library (X3DJSAIL)
	http://www.web3d.org/specifications/java/X3DJSAIL.html

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6. *containerField*

In the X3D XML encoding, each containerField value is the field name from the X3D Specification that indicates a contained node's relationship to its parent node. Default containerField values for each node are correct in most cases, so the need to override default containerField values is relatively rare.  Summary and details:

	X3D Scene Authoring Hints: containerField
	http://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html#containerField

Progress recently reported in

	[x3d-public] containerField updates planned for X3D Schema, DTD and X3DUOM
	http://web3d.org/pipermail/x3d-public_web3d.org/2018-June/008980.html

Further improvements are possible.  In near term, am adding value constraints to X3D XML Schema and X3D DOCTYPE to further validate content more strictly.

Looking ahead: it appears that perhaps half of these issues might be streamlined and eliminated, for example by changing unambiguous specialty field names such as watchList to children.

These are potentially excellent improvements for X3Dv4 and X3DUOM that have the potential to simplify content in all of the X3D file formats and programming language bindings.  Ongoing specification comments and Mantis issues to follow that track these details.  Members will be able to review these and consider applying changes in the second half of 2018.

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7.*Github work, X3D language bindings*

Sharp-eyed review noticed that X3D language binding documents in github are watermarked Committee Draft rather than Working Draft.  That is incorrect.

Dick will create a new watermark to remedy that situation where it occur.  Don will confirm all changes are satisfactory.

As C# binding apparently was submitted as a Committee Draft rather than Working Draft early in the year.  That was an unintentional error, we will raise that comment now with SC24 to see if they want to change it.

These documents are Web3D Member only.  New members are welcome to Join, existing members are welcome to request access to the account.

	Join the Web3D Consortium
	http://www.web3d.org/join

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8. *Looking ahead*

Wow, what a tremendous amount of activity.  This will only get multiplied next week during the excitement of VR Hackathon and Web3D 2018 Conference.  It will be really great to see everyone again.  8)

Looking forward to continued ongoing progress together.  Have fun with X3D!

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