{ "X3D": { "encoding":"UTF-8", "@profile":"Immersive", "@version":"4.0", "@xsd:noNamespaceSchemaLocation":"https://www.web3d.org/specifications/x3d-4.0.xsd", "JSON schema":"https://www.web3d.org/specifications/x3d-4.0-JSONSchema.autogenerated.json", "head": { "-children":[ { "#comment":"of note is that name values for these document meta terms are defined by Dublin Core" }, { "#comment":"Wikipedia example RDF XML plus Protege conversion to Turtle .ttl" } ], "meta": [ { "@name":"title", "@content":"XmpMetadataEmbedded.x3d" }, { "@name":"description", "@content":"Simple XMP sidecar example: Hello XMP metadata!" }, { "@name":"created", "@content":"29 April 2021" }, { "@name":"modified", "@content":"15 July 2025" }, { "@name":"creator", "@content":"Don Brutzman, Vince Marchetti, Jakub Flotynski, Dick Puk" }, { "@name":"warning", "@content":"Source model assumes default containerField=value for X3D4 Metadata nodes, specification resolution needed" }, { "@name":"reference", "@content":"Summary presentation XmpMetadataSupportX3D.pptx" }, { "@name":"reference", "@content":"XmpMetadataSidecar.xml" }, { "@name":"reference", "@content":"XmpMetadataSidecar.rdf" }, { "@name":"reference", "@content":"XmpMetadataSidecar.ttl" }, { "@name":"generator", "@content":"Protege https://protege.stanford.edu" }, { "@name":"Image", "@content":"XmpMetadataEmbeddedX3dComparison.png" }, { "@name":"reference", "@content":"https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/core.html#MetadataSet" }, { "@name":"reference", "@content":"XmpMetadataExampleWikipedia.xml" }, { "@name":"reference", "@content":"XmpMetadataExampleWikipedia.ttl" }, { "@name":"reference", "@content":"https://wwwimages2.adobe.com/content/dam/acom/en/devnet/xmp/pdfs/XMP%20SDK%20Release%20cc-2016-08/XMPSpecificationPart1.pdf" }, { "@name":"TODO", "@content":"Once pattern OK, write conversion stylesheets XmpToX3dMetadata.xslt and X3dMetadataToXmp.xslt" }, { "@name":"info", "@content":"X3D support for xml:lang attribute not provided in X3D XML Schema, instead use MetadataString as best practice." }, { "@name":"reference", "@content":"Wikipedia XMP https://en.wikipedia.org/wiki/Extensible_Metadata_Platform" }, { "@name":"reference", "@content":"Wikipedia Metadata https://en.wikipedia.org/wiki/Metadata" }, { "@name":"reference", "@content":"https://en.wikipedia.org/wiki/Sidecar" }, { "@name":"reference", "@content":"https://experienceleague.adobe.com/docs/experience-manager-64/assets/administer/xmp.html" }, { "@name":"reference", "@content":"https://en.wikipedia.org/wiki/Ontology_for_Media_Resources" }, { "@name":"reference", "@content":"https://en.wikipedia.org/wiki/Multimedia_Web_Ontology_Language" }, { "@name":"reference", "@content":"W3C Ontology for Media Resources 1.0 https://www.w3.org/TR/mediaont-10" }, { "@name":"reference", "@content":"ISO XMP ISO 16684-1:2019Part 1: Data model, serialization and core properties https://www.iso.org/standard/75163.html" }, { "@name":"reference", "@content":"ISO XMP 16684-2:2014 Part 2: Description of XMP schemas using RELAX NG https://www.iso.org/standard/57422.html" }, { "@name":"reference", "@content":"Adobe XMP https://www.adobe.com/devnet/xmp.html" }, { "@name":"reference", "@content":"Adobe XMP https://www.adobe.com/products/xmp.html" }, { "@name":"reference", "@content":"ExifTool XMP Tags https://exiftool.org/TagNames/XMP.html" }, { "@name":"identifier", "@content":"https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter15Metadata/XmpMetadataEmbedded.x3d" }, { "@name":"license", "@content":"https://www.web3d.org/x3d/content/examples/license.html" }, { "@name":"generator", "@content":"X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit" }, { "@name":"translated", "@content":"17 April 2026" }, { "@name":"generator", "@content":"X3dToJson.xslt, https://www.web3d.org/x3d/stylesheets/X3dToJson.html" }, { "@name":"reference", "@content":"X3D JSON encoding: https://www.web3d.org/wiki/index.php/X3D_JSON_Encoding" } ] }, "Scene": { "-children":[ { "#comment":"Design considerations:" }, { "#comment":"a. avoid containerField='metadata' and containerField='value' wherever possible, note X3D4 XML schema revision is needed" }, { "#comment":"b. literal XMP values wherever possible, lossless" }, { "#comment":"c. avoid nested quotes/apostrophes by using MetadataString name/value pairs" }, { "#comment":"d. map XMP parent elements to MetadataSet, otherwise have typed Metadata* values wherever possible" }, { "#comment":"e. push shared properties as high as possible in MetadataSet hierarchy, since they apply to all children" }, { "#comment":"f. assumptions: unquoted MFString values equal a single SFString array element, default Metadata* node containerField='value'" }, { "#comment":"g. MetadataSet nodes contain other Metadata* nodes as the /value/ field, thus producing tree-like structured metadata information" }, { "WorldInfo": { "@title":"XmpMetadataEmbedded.x3d" } }, { "Background": { "@skyColor":[0,0.439216,0.760784] } }, { "#comment":"Sample (partial) XMP sidecar file XmpMetadataSidecar.xml generated manually by Vince Marchetti as part of the STEP Geometry Services Pilot Project" }, { "MetadataSet": { "@name":"rdf:RDF", "@reference":"TODO refer to XMP ISO specification document", "-value":[ { "MetadataSet": { "@name":"namespaces", "-value":[ { "MetadataString": { "@name":"xmlns:rdf", "@value":["http://www.w3.org/1999/02/22-rdf-syntax-ns#"] } }, { "MetadataString": { "@name":"xmlns:dc", "@value":["http://purl.org/dc/elements/1.1/"] } }, { "MetadataString": { "@name":"xmlns:xmp", "@value":["http://ns.adobe.com/xap/1.0/"] } } ] } }, { "MetadataSet": { "@name":"rdf:Description", "-value":[ { "MetadataString": { "@name":"rdf:about", "@value":["https://kshell.com/sgs/example_uri_0001/"] } }, { "MetadataSet": { "@name":"dc:description", "-value":[ { "MetadataSet": { "@name":"rdf:Alt", "-value":[ { "MetadataString": { "@name":"rdf:li", "@value":["VRML visualization"], "-children":[ { "#comment":"discouraging direct use of xml:lang='en' as an attribute, since that is legal XML but invalid X3D" } ], "-metadata": { "MetadataString": { "@name":"xml:lang", "@reference":"prefer using MetadataString to indicate xml:lang values", "@value":["en"] } } } } ] } } ] } }, { "MetadataString": { "@name":"dc:format", "@value":["model/x3d-vrml"] } }, { "MetadataString": { "@name":"dc:rights", "@reference":"https://www.dublincore.org/specifications/dublin-core/dcmi-terms/terms/rights/", "@value":["open source"] } }, { "MetadataSet": { "@name":"dc:title", "-value":[ { "MetadataSet": { "@name":"rdf:Alt", "-value":[ { "MetadataString": { "@name":"rdf:li", "@reference":"xml:lang='en'", "@value":["l-bracket_20120725.134815"], "-metadata": { "MetadataString": { "@name":"xml:lang", "@value":["en"] } } } }, { "MetadataString": { "@name":"rdf:li", "@reference":"xml:lang='gr'", "@value":["aristsirra-bracket_20120725.134815"], "-metadata": { "MetadataString": { "@name":"xml:lang", "@reference":"prefer using MetadataString to indicate xml:lang values", "@value":["en"] } } } } ] } }, { "MetadataSet": { "@name":"dc:creator", "-value":[ { "MetadataSet": { "@name":"rdf:Seq", "-value":[ { "MetadataString": { "@name":"rdf:li", "@value":["vmarchetti@kshell.com"] } } ] } } ] } }, { "MetadataString": { "@name":"xmp:CreateDate", "@value":["10 February 2021"] } } ] } } ] } } ] } }, { "Viewpoint": { "@description":"View scene source to see metadata examples", "@position":[0,0,9] } }, { "Anchor": { "@description":"Load scene index page", "@parameter":["target=_blank"], "@url":["XmpMetadataEmbeddedIndex.html","https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter15Metadata/XmpMetadataEmbeddedIndex.html"], "-children":[ { "Shape": { "-geometry": { "Text": { "@string":["View scene source","to see","XmpMetadataEmbedded","example"], "-fontStyle": { "FontStyle": { "@justify":["MIDDLE","MIDDLE"] } } } }, "-appearance": { "Appearance": { "-material": { "Material": { "@diffuseColor":[1,0.992157,0.039216] } } } } } } ] } } ] } } }