<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Here is a first cut at converting GLTF to XML & DOM in node.js:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><a href="https://github.com/coderextreme/X3DJSONLD/blob/master/gltf2xml.js">https://github.com/coderextreme/X3DJSONLD/blob/master/gltf2xml.js</a></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>No guarantees, and very little testing.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:andreasplesch@gmail.com">Andreas Plesch</a><br><b>Sent: </b>Monday, December 11, 2017 12:02 AM<br><b>To: </b><a href="mailto:michalis.kambi@gmail.com">Michalis Kamburelis</a><br><b>Cc: </b><a href="mailto:x3dom-users@lists.sourceforge.net">x3dom mlist</a>; <a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: [x3d-public] gltf and x3d</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I probably would target as a first step ExternalGeometry or</p><p class=MsoNormal>equivalent. Although glTF geometries could be represented as one of</p><p class=MsoNormal>X3D Geometry nodes, it would seem to make sense to avoid translation</p><p class=MsoNormal>to x3d fields and then back to GL data types ?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I could get ExternalGeometry for glTF 2.0 working in x3dom:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>https://x3dom-gltf2-scratch.glitch.me/</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>has both, a glTF 1.0 ExternalShape and a glTF 2.0 ExternalGeometry (the duck).</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>It is still a bit hacky, mostly because it is tacked on to the</p><p class=MsoNormal>existing glTF 1.0 code. But it works and I learned the basics.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I will see if I can make some progress on PBR material support for</p><p class=MsoNormal>ExternalShape but if I cannot I will clean this up and PR it for x3dom</p><p class=MsoNormal>dev availability.</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><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><o:p> </o:p></p><p class=MsoNormal>On Fri, Dec 8, 2017 at 4:41 PM, Michalis Kamburelis</p><p class=MsoNormal><michalis.kambi@gmail.com> wrote:</p><p class=MsoNormal>> 2017-12-08 22:37 GMT+01:00 Michalis Kamburelis <michalis.kambi@gmail.com>:</p><p class=MsoNormal>>> I welcome all</p><p class=MsoNormal>>> information how to best (without losing any functionality or</p><p class=MsoNormal>>> efficiency) convert all important glTF concepts to X3D :)</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> (P.S. I also welcome contributions about it to Castle Game Engine :)</p><p class=MsoNormal>> If you know glTF and X3D, then writing the necessary code to make it</p><p class=MsoNormal>> all happen in Castle Game Engine may be quite easy and rewarding.</p><p class=MsoNormal>> Loaders of currently supported model formats may serve as an example.)</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> Regards,</p><p class=MsoNormal>> Michalis</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>-- </p><p class=MsoNormal>Andreas Plesch</p><p class=MsoNormal>Waltham, MA 02453</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>_______________________________________________</p><p class=MsoNormal>x3d-public mailing list</p><p class=MsoNormal>x3d-public@web3d.org</p><p class=MsoNormal>http://web3d.org/mailman/listinfo/x3d-public_web3d.org</p><p class=MsoNormal><o:p> </o:p></p></div></body></html>