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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><b>Minutes for the X3D WG meeting held on Wednesday 23<sup>rd</sup> August 2017 at 0800 PST, 1</b><b><span style='color:windowtext'>6</span>00 </b><b><span style='color:windowtext'>BST 1500 UTC</span>.</b><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Attendees: Roy Walmsley, Leonard Daly, Don Brutzman, Dick Puk, Anita Havele, Vince Marchetti (late arrival)<o:p></o:p></p><p class=MsoNormal>Apologies received: Vince Marchetti (for late arrival)<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal>A. <b><u>Outstanding matters</u></b><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l4 level1 lfo2'><u>Update of X3D V4 HTML Integration Requirements page<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Reference: <a href="http://www.web3d.org/wiki/index.php/X3D_V4_HTML_Integration_Requirements">http://www.web3d.org/wiki/index.php/X3D_V4_HTML_Integration_Requirements</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Scripting section from <a href="http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007288.html">http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007288.html</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Leonard reported that the addition of the scripting material was now complete.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=2 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l4 level1 lfo2'><u>Charters – H-Anim charter<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>BoD approved subject to comments.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'>H-Anim WG page update request from Myeong Won Lee (19<sup>th</sup> August)<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Roy reported that, with Anita’s supervision, the H-Anim draft charter had been updated in accordance with the comments from the Board Meeting of 20<sup>th</sup> February 2017. Leonard agreed to add the reference to the updated charter to the H-Anim WG page.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Roy also reported that he had been asked by the the H-Anim WG co-chair Myeong Won Lee to make minor revisions to the H-Anim WG page.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=3 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l4 level1 lfo2'><u>Draft H-Anim CD2 texts<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Status update<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Roy reported that the updating of the Part 2 draft text has been completed, and committed to the H-Anim repository on GitHub. This text has had a major revision of the underlying HTML, and a small number of editorial corrections. Dick reported that he had committed some changes to the Part 1 text. It was agreed that all the changes would be amalgamated before WG discussion.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=4 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l4 level1 lfo2'><u>X3DUrlObject – Mantis issue 1171<o:p></o:p></u></li></ol><p class=MsoListParagraph style='margin-left:54.0pt'>New draft text for clause 9.2.3 in ISO/IEC 19775-1<o:p></o:p></p><p class=MsoListParagraph style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoListParagraph style='margin-left:54.0pt'>Roy reported that this is still outstanding.<o:p></o:p></p><p class=MsoListParagraph style='margin-left:54.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=5 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l4 level1 lfo2'><u>[Member-only material]</u><o:p></o:p></li></ol><p class=MsoNormal style='margin-left:54.0pt'><u><o:p><span style='text-decoration:none'> </span></o:p></u></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal>B. <b><u>Summary and Technical reports</u></b><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'>Opportunity for anyone to make a short report on Web site, marketing, communication, specification or technical matters that is not already on the Agenda.<o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l0 level1 lfo3'><u>Web3D Report to ISO<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Reference: <a href="http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007295.html">http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007295.html</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'>See PDF attached above.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Update to specification relationships diagram at <a href="http://2014.web3d.org/specifications/X3dSpecificationRelationships.2017August11.png">http://2014.web3d.org/specifications/X3dSpecificationRelationships.2017August11.png</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>The updated draft specification relationships diagram was reviewed. The changes concern the language bindings. Some work is being undertaken on Python. It is also proposed that separate C++ and C#, plus additional C language bindings are now produced. The motivation to split the C++ and C# bindings is simply for clarity, since implementers generally have an interest in one language only. Roy noted that the C++/C# binding was currently being prepared as a combined document. However, it was always understood that it might be separated into two, simply by duplicating the combined document, and removal of one language from each document.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>It was emphasized that this is still a draft change. The links are to draft documents, the originals are still those publicized on the web site. No further changes were proposed.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>The Web3D Consortium report was reviewed. Don explained that X3D / HTML integration was the primary focus. The second major focus, planned for V4.1 is Mixed and Augmented Reality (MAR). The Annex at the end of the report details strategies for improvement of the Sound component.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>The section of glTF was noted. It was explained that glTF essentially contains a pre-defined scene, with a bit of run-time. The file is loaded, and then exposed to animations. It was agreed that this needs to be reviewed, especially as previous strategies were concerned with ExternalGeometry and/or ExternalShape candidate nodes.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal><b><u>C. Discussion Topics<o:p></o:p></u></b></p><p class=MsoListParagraph style='margin-left:90.0pt'><o:p> </o:p></p><ol style='margin-top:0cm' start=1 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l5 level1 lfo4'><u>VRML to X3D translation<o:p></o:p></u></li></ol><ul style='margin-top:0cm' type=disc><li class=MsoNormal style='margin-left:54.0pt;mso-list:l1 level1 lfo5'>Background to proposal<o:p></o:p></li><li class=MsoNormal style='margin-left:54.0pt;mso-list:l1 level1 lfo5'>Existing workflows<o:p></o:p></li><li class=MsoNormal style='margin-left:54.0pt;mso-list:l1 level1 lfo5'>Suggested solutions<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Vince explained that he anticipated the primary deliverable for this project would be a Windows DLL. Its functionality would be the conversion between VRML and X3D encoding, seamlessly converting either way. The need was exemplified by the DICOM group that Vince attends. On September 11th DICOM WG 17 will be discussing the potential inclusion of 3 file formats, including X3D/VRML, putting forward a formal proposal to WG 6. This proposal will be limited to three additional formats.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>It was noted that the conversion process would need to handle the complexities of the EAI / SAI as well.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Vince would like to cover the historic versions of VRML, as well as the Classic VRML encoding for X3D. Don noted that the vast majority of VRML files were the VRML 97 format. Vince wants to encourage transfer to X3D, and not to go back to old versions, ideally going forwards to the XML encoding of X3D.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>One candidate solution put forward was XIOT, which Christophe has suggested (see <a href="http://web3d.org/mailman/private/x3d_web3d.org/2017-August/006258.html"><span style='color:black;text-decoration:none'>http://web3d.org/mailman/private/x3d_web3d.org/2017-August/006258.html</span></a>). Roy reported that, according to their README file, XIOT was only concerned with the XML and Compressed binary encodings.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Concern was expressed about the maintainability of code bases. Don noted that parser generators, such as ANTLR (<a href="http://www.antlr.org/">http://www.antlr.org/</a>), were capable of automatic generation of parsers from the grammar.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>It was proposed that outputs would be X3D V3.3 XML encoding and VRML 97. Inputs would be VRML, Classic VRML for X3D, and XML encoding for X3D. Node coverage would start at the interchange profile, adding other components as appropriate.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Applications supporting VRML include, for example, Maya, 3D Studio, etc. Vince would like examples to test, preferably by September 1st. It was noted that applications exporting “.wrl” files would likely not include scripts and prototypes. It was thought that MeshLab (<a href="http://www.meshlab.net/">http://www.meshlab.net/</a>) supported both VRML and Classic VRML encoding for X3D.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Vince explained that the reason for proposing a Windows DLL was that, provided there are no hardware or operating system dependencies, there should be minimal compatibility issues as new versions of Windows are released. <o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Vince reported that he is considering submitting a contribution for approval by the Web3D Consortium.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ol style='margin-top:0cm' start=2 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l5 level1 lfo4'><u>X3D Object Model Rename<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Reference: <a href="http://2014.web3d.org/specifications/X3DUOM.html">http://2014.web3d.org/specifications/X3DUOM.html</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><u><o:p><span style='text-decoration:none'> </span></o:p></u></p><p class=MsoNormal style='margin-left:54.0pt'>The proposal to rename the X3D Object Model was put forward. The change is motivated by the inclusion of the notion of being unified, that is the Object Model is working across multiple languages and approaches. The reference link above, which is a draft, illustrates the coverage.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>The only significant opposition was to the proposed acronym, which is very similar to X3DOM, see <a href="http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007386.html">http://web3d.org/pipermail/x3d-public_web3d.org/2017-August/007386.html</a>.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><u><o:p><span style='text-decoration:none'> </span></o:p></u></p><ol style='margin-top:0cm' start=3 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l5 level1 lfo4'><u>Integration into HTML: DEF/USE<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'><a href="http://www.web3d.org/wiki/index.php/X3D_V4_HTML_Integration_Requirements#DEF.2FUSE_in_HTML">http://www.web3d.org/wiki/index.php/X3D_V4_HTML_Integration_Requirements#DEF.2FUSE_in_HTML</a><o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal style='margin-left:54.0pt'>Not discussed.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal>D. <b><u>Specification work, GitHub, and Mantis issues<o:p></o:p></u></b></p><p class=MsoNormal><b><u><o:p><span style='text-decoration:none'> </span></o:p></u></b></p><p class=MsoNormal style='margin-left:36.0pt'>None set<o:p></o:p></p><p class=MsoNormal style='margin-left:72.0pt'><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal>E. <b><u>Schedule review<o:p></o:p></u></b></p><p class=MsoNormal><b><u><o:p><span style='text-decoration:none'> </span></o:p></u></b></p><p class=MsoNormal>Other topics for discussion not yet assigned are:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Investigate other 3D display capabilities: Glam and CSS.<o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l3 level1 lfo6'><![if !supportLists]><span style='font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]>GLAM see <a href="https://tparisi.github.io/glam/">https://tparisi.github.io/glam/</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-indent:36.0pt'>Timo Sturm of Fraunhofer to talk about advanced materials. Also with Max Limper re SRC/glTF interoperability, X3DOM support and repeatability.<o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'><o:p> </o:p></p><p class=MsoNormal style='text-indent:36.0pt'>X3D Features Missing list submitted by Michaelis Kamburelis, see <a href="http://web3d.org/pipermail/x3d-public_web3d.org/2017-April/006347.html">http://web3d.org/pipermail/x3d-public_web3d.org/2017-April/006347.html</a><o:p></o:p></p><p class=MsoNormal style='text-indent:36.0pt'><o:p> </o:p></p><p class=MsoNormal style='text-indent:36.0pt'>X3D Integration into HTML: Events<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>August 30<sup>th</sup> – DEF/USE<o:p></o:p></p><p class=MsoNormal>September 6<sup>th</sup> –<o:p></o:p></p><p class=MsoNormal>September 13<sup>th</sup> –<o:p></o:p></p><p class=MsoNormal>September 20<sup>th</sup> –<o:p></o:p></p><p class=MsoNormal><b><u><o:p><span style='text-decoration:none'> </span></o:p></u></b></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal><b><u>F. Date and time of next meeting<o:p></o:p></u></b></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>August 30<sup>th</sup> 2017 at 0800 PDT 1600 BST 1500 UTC<o:p></o:p></p><p class=MsoNormal><b><o:p> </o:p></b></p><p class=MsoNormal>Roy Walmsley<o:p></o:p></p><p class=MsoNormal>X3D WG co-chair<o:p></o:p></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p></div></body></html>