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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>The relationship between a tangent and a normal is… orthogonal, literally.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>Wikipedia: Tangent<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>https://en.wikipedia.org/wiki/Tangent<o:p></o:p></li></ul><p class=MsoListParagraph><o:p> </o:p></p><ul style='margin-top:0in' type=disc><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>Wikipedia: Normal (geometry)<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>https://en.wikipedia.org/wiki/Normal_(geometry)<o:p></o:p></li></ul><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Given a surface, you can convert a normal to a tangent (and vice versa).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regarding DOM, it is Document Object Model used to create a tree of element/attribute/value strings corresponding to an HTML page. Suggest reading the respective specifications, or summaries, in order to understand how it is a quite different from glTF.<o:p></o:p></p><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>all the best, Don<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>X3D graphics, virtual worlds, Navy robotics https://</span> <span style='font-size:10.0pt;font-family:"Courier New"'>faculty.nps.edu/brutzman<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> John Carlson <yottzumm@gmail.com> <br><b>Sent:</b> Thursday, September 29, 2022 12:05 PM<br><b>To:</b> Brutzman, Donald (Don) (CIV) <brutzman@nps.edu><br><b>Cc:</b> Michalis Kamburelis <michalis.kambi@gmail.com>; X3D Public Mailing List (x3d-public@web3d.org) <x3d-public@web3d.org><br><b>Subject:</b> Re: [x3d-public] X3D Working Group meeting 23 SEP 2022: Mantis issues review, SvgTexture<o:p></o:p></p></div></div><div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt'><o:p> </o:p></span></p><p class=MsoNormal>On Thu, Sep 29, 2022 at 12:42 PM Brutzman, Donald (Don) wrote<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal><br>2.1. Tangent vectors are normal to a surface. X3D has a Normal node, so an<br>advanced authoring can likely match such functionality.<o:p></o:p></p></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I don’t understand the first sentence. Information is only needed if the first sentence is correct.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I will try to me tomorrow or when the next meeting is. The real purpose is to inquire into next meeting.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>If someone is preparing a glTF to DOM converter, can I participate?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>John<o:p></o:p></p></div></div></div></div></div></body></html>