<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Leonard, I think you forget that Extrusion splines etc. can be animated. If Maya can export an Extrusion animation to X3D V4.0 and your new elements can handle animation of it, I think we are fine.<div class=""><br class=""></div><div class="">John<br class=""><div><blockquote type="cite" class=""><div class="">On Jan 26, 2016, at 1:47 PM, Leonard Daly <<a href="mailto:Leonard.Daly@realism.com" class="">Leonard.Daly@realism.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="moz-cite-prefix" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);">I would like to ask the question very differently. My question is not to ignore the importance of getting the definition correct for X3D <= V3.3.<br class=""><br class=""><br class="">Most (>95%) 3D modeling is done with a tool. In non-CAD environment, the tools is almost certainly Maya or Blender. Both of those tools have extrusions built in to their interface. I imagine CAD tools are similar. With so many tools providing graphical extrusion editors, and some of the tools being open-source (at least Blender);<br class=""><br class="">Do we need an extrusion node in V4 to support content developed for V4+?<span class="Apple-converted-space"> </span><br class=""><br class=""><br class="">Leonard Daly<br class=""><br class=""><br class=""><br class="">On 1/26/2016 7:15 AM, Alekseyev, Vsevolod (NIH/NIAID) [E] wrote:<br class=""></div><blockquote cite="mid:CC1C444FB9E32940BA18B288E9CAB83C213F30FC@msgb05.nih.gov" type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><div style="direction: ltr; font-family: Tahoma; font-size: 10pt;" class="">Hi X3D community,<div class=""><br class=""></div><div class="">I've tried and failed twice to explain the problems with the definition of the Extrusion node. So here's a tl;dr version:</div><div class=""><br class=""></div><div class="">Dear authors of the X3D standard, please take a careful look at the standard and answer me:</div><div class=""><br class=""></div><div class="">1) When the spine goes (0,0,0)-(0,-1,0), what is the CSP?</div><div class="">Note: all answers but one will render one of the reference models in the Savage archive invalid.</div><div class=""><br class=""></div><div class="">2) When the spine goes <span style="font-size: 13.3333px;" class="">(0,0,0)-(0,1,0)-(0,0,0), what is the CSP?</span></div><div class=""><span style="font-size: 13.3333px;" class=""><br class=""></span></div><div class=""><span style="font-size: 13.3333px;" class="">3) When the spine goes (0,0,0)-(1,1,0)-</span><span style="font-size: 13.3333px;" class="">(1,1,0)-</span><span style="font-size: 13.3333px;" class="">(1,1,0)-(2,0,0), what is the CSP for the three middle points?</span></div></div><br class=""><fieldset class="mimeAttachmentHeader"></fieldset><br class=""><pre wrap="" class="">_______________________________________________
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</pre></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><div class="moz-signature" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);">--<span class="Apple-converted-space"> </span><br class=""><font class="tahoma,arial,helvetica san serif" color="#333366"><font size="+1" class=""><b class="">Leonard Daly</b></font><br class="">3D Systems & Cloud Consultant<br class="">X3D Co-Chair on Sabbatical<br class="">LA ACM SIGGRAPH Chair<br class="">President, Daly Realism -<span class="Apple-converted-space"> </span><i class="">Creating the Future</i></font></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); float: none; display: inline !important;" class="">x3d-public mailing list</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><a href="mailto:x3d-public@web3d.org" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">x3d-public@web3d.org</a><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""><a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class="">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" class=""></div></blockquote></div><br class=""></div></body></html>