<div dir="ltr"><div>It is not possible to avoid USE, it is fully integrated functionality in the specification. No need to reengineer the specification.</div><div><br></div><div>Again recommend working on one very simple case at a time, to narrow down each problem and fix it. Complexity obscures diagnosis.</div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="color:rgb(34,34,34)"><font face="monospace"><br></font></div><div style="color:rgb(34,34,34)"><font face="monospace">all the best, Don</font></div><div style="color:rgb(34,34,34)"><font face="monospace">-- </font></div><div style="color:rgb(34,34,34)"><font face="monospace">X3D Graphics, Maritime Robotics, Distributed Simulation</font></div><div style="color:rgb(34,34,34)"><font face="monospace">Relative Motion Consulting <a href="https://RelativeMotion.info" target="_blank">https://RelativeMotion.info</a></font></div></div></div></div><br></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, Mar 27, 2026 at 6:08 PM John Carlson via x3d-public <<a href="mailto:x3d-public@web3d.org">x3d-public@web3d.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Replacing USE with DEF would massively improve the JSON schema. I vote for that! It would massively improve the error reporting as well.<div dir="auto"><br></div><div dir="auto">What does FreeWRL think?</div><div dir="auto"><br></div><div dir="auto">No need for two attributes for the same meaning.</div><div dir="auto"><br></div><div dir="auto">USE and DEF code be used interchangeably, and container fields could specify parents.</div><div dir="auto"><br></div><div dir="auto">The only problem I see is when USE and DEF are used together, but that’s already an issue.</div><div dir="auto"><br></div><div dir="auto">John</div>
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