<div dir="ltr"><div dir="ltr">On Thu, Mar 10, 2022 at 9:41 PM Brutzman, Donald (Don) (CIV) <<a href="mailto:brutzman@nps.edu">brutzman@nps.edu</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div lang="EN-US" style="overflow-wrap: break-word;"><div class="gmail-m_4940482822849820104WordSection1"><p class="MsoNormal">Sorry I thought we were talking about Metadata examples, not DEF/USE id/idref identifier/copy-by-reference kinds of reuse.</p></div></div></blockquote><div><br></div><div>glTF and collada have "extras" for unstructured metadata. glTF now also has structured metadata:<br></div><div><br></div><div><a href="https://www.khronos.org/blog/pervasive-asset-metadata-in-3dcommerce">https://www.khronos.org/blog/pervasive-asset-metadata-in-3dcommerce</a><br></div><div><br></div><div>based on the XMP standard.</div><div><br></div><div><a href="https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_xmp_json_ld">https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_xmp_json_ld</a><br></div><div><br></div><div>has the details.</div><div><br></div><div>To avoid further confusion, let me emphasize this is completely unrelated to library node functionality.</div><div><br></div><div>Hope this helps, Andreas</div></div></div>