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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 of the X3D WG meeting held on Wednesday 11<sup>th</sup> October 2017 - Public Release</b><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Attendees: Roy Walmsley, Vince Marchetti, Dick Puk, Anita Havele, Don Brutzman, Nicholas Polys<o:p></o:p></p><p class=MsoNormal>Apologies received: Leonard Daly<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>A. <b><u>Outstanding matters</u></b><o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal> None.<o:p></o:p></p><p class=MsoNormal><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. <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:l2 level1 lfo1'><u>Report on Mantis SG meeting held Thursday 5<sup>th</sup> October 2017<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Reference: <a href="http://web3d.org/mailman/private/x3d_web3d.org/2017-October/006380.html">http://web3d.org/mailman/private/x3d_web3d.org/2017-October/006380.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'>Eleven issues were triaged. Three were agreed and updated to Assigned. One required more info therefore was updated to Feedback. Seven were updated to Acknowledged.<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:l2 level1 lfo1'><u>Report on Mantis SG meeting held Tuesday 10<sup>th</sup> October 2017<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>Reference: <a href="http://web3d.org/mailman/private/x3d_web3d.org/2017-October/006386.html">http://web3d.org/mailman/private/x3d_web3d.org/2017-October/006386.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'>Five issues were reviewed. Two were agreed and assigned. The other three were updated to Acknowledged.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><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:l0 level1 lfo2'><u>Release of Mantis subgroup meeting minutes to the public<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'>The motive for public release is similar to that for the full WG minutes – keeping the community aware of steady activity, and encouraging people to join. Roy noted, however, that for specification comments submitted last year or earlier, we do not have the submitter’s permission to make the details of the issue public.<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 agreed that minutes be publicly disseminated on a weekly basis, following the same procedure as the full WG minutes, i.e. approval at the start of the subsequent meeting.<u><o:p></o:p></u></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:l0 level1 lfo2'><u>Sequencers for floating point data types<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-October/007599.html">http://web3d.org/pipermail/x3d-public_web3d.org/2017-October/007599.html</a> thread on the public list entitled “FloatSequencer ?”<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'>Don summarized the historical narrative on the use of interpolators for floating point numbers and the possibility of using sequencers. VRML defined introduced interpolators, which were all piecewise linear functions. X3D added more interpolators to cover different types, including non-linear interpolators. Finally event utilities were added, dealing with integers and booleans. It is noteworthy that sequencers have the additional fields, ‘next’ and ‘previous’.<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'>Why not have sequences for floating point? One reason was to avoid node bloat, as eight new nodes would be needed to cover all types. However, it was also suggested that new nodes could improve animation.<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'>Rather that provide an immediate answer it was suggested the prototypes could be written to assess usage. This was agreed to be a good way forward. It was noted that an external prototype could be used, keeping the file with the prototype on the web site. Then authors and scene players could download it as needed. It was felt that this would be a good approach to promote community involvement.<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'>Reviewing the long term aspects, however, it was noted that for archivability reasons the new nodes ought to be in the standard, and not offered as external prototypes.<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:l0 level1 lfo2'><u>Member-only discussion<o:p></o:p></u></li></ol><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=4 type=1><li class=MsoNormal style='margin-left:18.0pt;mso-list:l0 level1 lfo2'><u>Member-only discussion<o:p></o:p></u></li></ol><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<o:p></o:p></p><p class=MsoListParagraph><u><o:p><span style='text-decoration:none'> </span></o:p></u></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:72.0pt'>None set.<o:p></o:p></p><p class=MsoNormal style='margin-left:54.0pt'><o:p> </o:p></p><p class=MsoNormal>=======================================================================================================<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>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:l1 level1 lfo3'><![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>October 18<sup>th</sup> – X3D integration into HTML5 – Events and Event models<o:p></o:p></p><p class=MsoNormal>October 25<sup>th</sup> –<o:p></o:p></p><p class=MsoNormal>Note: Daylight saving time ends for the UK and Europe on Sunday 29<sup>th</sup> October, therefore the meeting on November 1<sup>st</sup> will be one hour earlier for Europeans.<o:p></o:p></p><p class=MsoNormal>November 1<sup>st</sup> –<o:p></o:p></p><p class=MsoNormal>Note: Daylight saving time ends for US on Sunday 5<sup>th</sup> November, so the meeting times will revert back to normal for Europeans.<o:p></o:p></p><p class=MsoNormal>November 8<sup>th</sup> –<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><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></div></body></html>