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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>MetadataSet is only allowed to contain other Metadata* nodes or comments. Other content will fail validation (and will not load or import in the X3DJSAIL Java and X3DPSAIL Python libraries).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The right way to cache non-rendered content for DEF/USE libraries is to put them as children nodes within a Switch node with whichChoice=’-1’.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></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><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> x3d-public <x3d-public-bounces@web3d.org> <b>On Behalf Of </b>Andreas Plesch<br><b>Sent:</b> Tuesday, March 8, 2022 10:11 AM<br><b>To:</b> X3D Graphics public mailing list <x3d-public@web3d.org><br><b>Subject:</b> Re: [x3d-public] X3DParticleEmitter node inherit from X3DChildNode(rather than X3DNode)<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Of note is that Titania and x-ite allow MetadataSet to have X3DNode nodes, eg. any node, in the value field, not just X3DMetadataObject nodes.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>This allows MetadataSet to be used as a NodesLibrary for DEF/USE purposes. In fact, this kind of redirection is the default setup for scenes created in Titania.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>SVG also has a NodesLibrary equivalent, the <defs> element:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FWeb%2FSVG%2FElement%2Fdefs&data=04%7C01%7Cbrutzman%40nps.edu%7Ca7f1e8503b27409f46ec08da012f296e%7C6d936231a51740ea9199f7578963378e%7C0%7C0%7C637823599562085821%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=I%2BYZml0d07AjdVyR0CgxDMmSD5mNZT34TxYWHbxBMhI%3D&reserved=0">https://developer.mozilla.org/en-US/docs/Web/SVG/Element/defs</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>-Andreas<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><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 style='margin-bottom:12.0pt'>Date: Mon, 7 Mar 2022 21:29:41 +0100<br>From: Michalis Kamburelis <<a href="mailto:michalis.kambi@gmail.com" target="_blank">michalis.kambi@gmail.com</a>><br>To: Joseph D Williams <<a href="mailto:joedwil@earthlink.net" target="_blank">joedwil@earthlink.net</a>><br>Cc: GPU Group <<a href="mailto:gpugroup@gmail.com" target="_blank">gpugroup@gmail.com</a>>, "X3D Public Mailing List<br> (<a href="mailto:x3d-public@web3d.org" target="_blank">x3d-public@web3d.org</a>)" <<a href="mailto:x3d-public@web3d.org" target="_blank">x3d-public@web3d.org</a>><br>Subject: Re: [x3d-public] X3DParticleEmitter node inherit from<br> X3DChildNode(rather than X3DNode)<br>Message-ID:<br> <<a href="mailto:CAKzBGZNToR-7CmaUzRxBE3xx9J6j2mPgmvKAjQKpGQxjdY_0hA@mail.gmail.com" target="_blank">CAKzBGZNToR-7CmaUzRxBE3xx9J6j2mPgmvKAjQKpGQxjdY_0hA@mail.gmail.com</a>><br>Content-Type: text/plain; charset="UTF-8"<br><br>Perhaps I should have written<br><br>"""<br>The nodes within NodesLibrary don't make any effect, they are not<br>traversed. They are only to be reUSEd (referenced) by other parts of<br>the graph."<br>"""<br><br>This makes the wording consistent with how e.g. Switch is described.<br>Sure you have all the nodes in memory, you just don't traverse to<br>inactive parts of Switch, LOD, NodesLibrary etc.<br><br>Regards,<br>Michalis<br><br><o:p></o:p></p></blockquote></div></div></div></body></html>