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1336 lines
34 KiB
1336 lines
34 KiB
( function () {
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/**
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*
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* 3D Manufacturing Format (3MF) specification: https://3mf.io/specification/
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*
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* The following features from the core specification are supported:
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*
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* - 3D Models
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* - Object Resources (Meshes and Components)
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* - Material Resources (Base Materials)
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*
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* 3MF Materials and Properties Extension are only partially supported.
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*
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* - Texture 2D
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* - Texture 2D Groups
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* - THREE.Color Groups (Vertex Colors)
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* - Metallic Display Properties (PBR)
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*/
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class ThreeMFLoader extends THREE.Loader {
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constructor( manager ) {
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super( manager );
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this.availableExtensions = [];
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}
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load( url, onLoad, onProgress, onError ) {
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const scope = this;
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const loader = new THREE.FileLoader( scope.manager );
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loader.setPath( scope.path );
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loader.setResponseType( 'arraybuffer' );
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loader.setRequestHeader( scope.requestHeader );
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loader.setWithCredentials( scope.withCredentials );
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loader.load( url, function ( buffer ) {
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try {
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onLoad( scope.parse( buffer ) );
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} catch ( e ) {
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if ( onError ) {
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onError( e );
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} else {
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console.error( e );
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}
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scope.manager.itemError( url );
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}
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}, onProgress, onError );
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}
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parse( data ) {
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const scope = this;
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const textureLoader = new THREE.TextureLoader( this.manager );
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function loadDocument( data ) {
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let zip = null;
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let file = null;
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let relsName;
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let modelRelsName;
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const modelPartNames = [];
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const printTicketPartNames = [];
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const texturesPartNames = [];
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const otherPartNames = [];
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let modelRels;
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const modelParts = {};
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const printTicketParts = {};
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const texturesParts = {};
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const otherParts = {};
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try {
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zip = fflate.unzipSync( new Uint8Array( data ) ); // eslint-disable-line no-undef
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} catch ( e ) {
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if ( e instanceof ReferenceError ) {
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console.error( 'THREE.3MFLoader: fflate missing and file is compressed.' );
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return null;
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}
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}
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for ( file in zip ) {
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if ( file.match( /\_rels\/.rels$/ ) ) {
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relsName = file;
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} else if ( file.match( /3D\/_rels\/.*\.model\.rels$/ ) ) {
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modelRelsName = file;
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} else if ( file.match( /^3D\/.*\.model$/ ) ) {
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modelPartNames.push( file );
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} else if ( file.match( /^3D\/Metadata\/.*\.xml$/ ) ) {
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printTicketPartNames.push( file );
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} else if ( file.match( /^3D\/Textures?\/.*/ ) ) {
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texturesPartNames.push( file );
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} else if ( file.match( /^3D\/Other\/.*/ ) ) {
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otherPartNames.push( file );
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}
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} //
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const relsView = zip[ relsName ];
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const relsFileText = THREE.LoaderUtils.decodeText( relsView );
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const rels = parseRelsXml( relsFileText ); //
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if ( modelRelsName ) {
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const relsView = zip[ modelRelsName ];
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const relsFileText = THREE.LoaderUtils.decodeText( relsView );
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modelRels = parseRelsXml( relsFileText );
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} //
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for ( let i = 0; i < modelPartNames.length; i ++ ) {
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const modelPart = modelPartNames[ i ];
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const view = zip[ modelPart ];
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const fileText = THREE.LoaderUtils.decodeText( view );
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const xmlData = new DOMParser().parseFromString( fileText, 'application/xml' );
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if ( xmlData.documentElement.nodeName.toLowerCase() !== 'model' ) {
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console.error( 'THREE.3MFLoader: Error loading 3MF - no 3MF document found: ', modelPart );
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}
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const modelNode = xmlData.querySelector( 'model' );
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const extensions = {};
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for ( let i = 0; i < modelNode.attributes.length; i ++ ) {
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const attr = modelNode.attributes[ i ];
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if ( attr.name.match( /^xmlns:(.+)$/ ) ) {
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extensions[ attr.value ] = RegExp.$1;
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}
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}
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const modelData = parseModelNode( modelNode );
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modelData[ 'xml' ] = modelNode;
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if ( 0 < Object.keys( extensions ).length ) {
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modelData[ 'extensions' ] = extensions;
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}
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modelParts[ modelPart ] = modelData;
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} //
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for ( let i = 0; i < texturesPartNames.length; i ++ ) {
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const texturesPartName = texturesPartNames[ i ];
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texturesParts[ texturesPartName ] = zip[ texturesPartName ].buffer;
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}
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return {
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rels: rels,
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modelRels: modelRels,
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model: modelParts,
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printTicket: printTicketParts,
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texture: texturesParts,
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other: otherParts
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};
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}
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function parseRelsXml( relsFileText ) {
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const relationships = [];
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const relsXmlData = new DOMParser().parseFromString( relsFileText, 'application/xml' );
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const relsNodes = relsXmlData.querySelectorAll( 'Relationship' );
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for ( let i = 0; i < relsNodes.length; i ++ ) {
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const relsNode = relsNodes[ i ];
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const relationship = {
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target: relsNode.getAttribute( 'Target' ),
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//required
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id: relsNode.getAttribute( 'Id' ),
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//required
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type: relsNode.getAttribute( 'Type' ) //required
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};
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relationships.push( relationship );
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}
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return relationships;
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}
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function parseMetadataNodes( metadataNodes ) {
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const metadataData = {};
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for ( let i = 0; i < metadataNodes.length; i ++ ) {
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const metadataNode = metadataNodes[ i ];
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const name = metadataNode.getAttribute( 'name' );
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const validNames = [ 'Title', 'Designer', 'Description', 'Copyright', 'LicenseTerms', 'Rating', 'CreationDate', 'ModificationDate' ];
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if ( 0 <= validNames.indexOf( name ) ) {
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metadataData[ name ] = metadataNode.textContent;
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}
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}
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return metadataData;
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}
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function parseBasematerialsNode( basematerialsNode ) {
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const basematerialsData = {
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id: basematerialsNode.getAttribute( 'id' ),
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// required
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basematerials: []
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};
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const basematerialNodes = basematerialsNode.querySelectorAll( 'base' );
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for ( let i = 0; i < basematerialNodes.length; i ++ ) {
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const basematerialNode = basematerialNodes[ i ];
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const basematerialData = parseBasematerialNode( basematerialNode );
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basematerialData.index = i; // the order and count of the material nodes form an implicit 0-based index
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basematerialsData.basematerials.push( basematerialData );
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}
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return basematerialsData;
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}
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function parseTexture2DNode( texture2DNode ) {
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const texture2dData = {
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id: texture2DNode.getAttribute( 'id' ),
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// required
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path: texture2DNode.getAttribute( 'path' ),
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// required
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contenttype: texture2DNode.getAttribute( 'contenttype' ),
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// required
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tilestyleu: texture2DNode.getAttribute( 'tilestyleu' ),
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tilestylev: texture2DNode.getAttribute( 'tilestylev' ),
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filter: texture2DNode.getAttribute( 'filter' )
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};
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return texture2dData;
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}
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function parseTextures2DGroupNode( texture2DGroupNode ) {
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const texture2DGroupData = {
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id: texture2DGroupNode.getAttribute( 'id' ),
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// required
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texid: texture2DGroupNode.getAttribute( 'texid' ),
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// required
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displaypropertiesid: texture2DGroupNode.getAttribute( 'displaypropertiesid' )
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};
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const tex2coordNodes = texture2DGroupNode.querySelectorAll( 'tex2coord' );
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const uvs = [];
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for ( let i = 0; i < tex2coordNodes.length; i ++ ) {
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const tex2coordNode = tex2coordNodes[ i ];
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const u = tex2coordNode.getAttribute( 'u' );
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const v = tex2coordNode.getAttribute( 'v' );
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uvs.push( parseFloat( u ), parseFloat( v ) );
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}
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texture2DGroupData[ 'uvs' ] = new Float32Array( uvs );
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return texture2DGroupData;
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}
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function parseColorGroupNode( colorGroupNode ) {
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const colorGroupData = {
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id: colorGroupNode.getAttribute( 'id' ),
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// required
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displaypropertiesid: colorGroupNode.getAttribute( 'displaypropertiesid' )
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};
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const colorNodes = colorGroupNode.querySelectorAll( 'color' );
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const colors = [];
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const colorObject = new THREE.Color();
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for ( let i = 0; i < colorNodes.length; i ++ ) {
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const colorNode = colorNodes[ i ];
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const color = colorNode.getAttribute( 'color' );
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colorObject.setStyle( color.substring( 0, 7 ) );
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colorObject.convertSRGBToLinear(); // color is in sRGB
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colors.push( colorObject.r, colorObject.g, colorObject.b );
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}
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colorGroupData[ 'colors' ] = new Float32Array( colors );
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return colorGroupData;
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}
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function parseMetallicDisplaypropertiesNode( metallicDisplaypropetiesNode ) {
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const metallicDisplaypropertiesData = {
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id: metallicDisplaypropetiesNode.getAttribute( 'id' ) // required
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};
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const metallicNodes = metallicDisplaypropetiesNode.querySelectorAll( 'pbmetallic' );
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const metallicData = [];
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for ( let i = 0; i < metallicNodes.length; i ++ ) {
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const metallicNode = metallicNodes[ i ];
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metallicData.push( {
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name: metallicNode.getAttribute( 'name' ),
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// required
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metallicness: parseFloat( metallicNode.getAttribute( 'metallicness' ) ),
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// required
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roughness: parseFloat( metallicNode.getAttribute( 'roughness' ) ) // required
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} );
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}
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metallicDisplaypropertiesData.data = metallicData;
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return metallicDisplaypropertiesData;
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}
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function parseBasematerialNode( basematerialNode ) {
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const basematerialData = {};
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basematerialData[ 'name' ] = basematerialNode.getAttribute( 'name' ); // required
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basematerialData[ 'displaycolor' ] = basematerialNode.getAttribute( 'displaycolor' ); // required
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basematerialData[ 'displaypropertiesid' ] = basematerialNode.getAttribute( 'displaypropertiesid' );
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return basematerialData;
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}
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function parseMeshNode( meshNode ) {
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const meshData = {};
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const vertices = [];
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const vertexNodes = meshNode.querySelectorAll( 'vertices vertex' );
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for ( let i = 0; i < vertexNodes.length; i ++ ) {
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const vertexNode = vertexNodes[ i ];
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const x = vertexNode.getAttribute( 'x' );
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const y = vertexNode.getAttribute( 'y' );
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const z = vertexNode.getAttribute( 'z' );
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vertices.push( parseFloat( x ), parseFloat( y ), parseFloat( z ) );
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}
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meshData[ 'vertices' ] = new Float32Array( vertices );
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const triangleProperties = [];
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const triangles = [];
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const triangleNodes = meshNode.querySelectorAll( 'triangles triangle' );
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for ( let i = 0; i < triangleNodes.length; i ++ ) {
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const triangleNode = triangleNodes[ i ];
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const v1 = triangleNode.getAttribute( 'v1' );
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const v2 = triangleNode.getAttribute( 'v2' );
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const v3 = triangleNode.getAttribute( 'v3' );
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const p1 = triangleNode.getAttribute( 'p1' );
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const p2 = triangleNode.getAttribute( 'p2' );
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const p3 = triangleNode.getAttribute( 'p3' );
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const pid = triangleNode.getAttribute( 'pid' );
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const triangleProperty = {};
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triangleProperty[ 'v1' ] = parseInt( v1, 10 );
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triangleProperty[ 'v2' ] = parseInt( v2, 10 );
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triangleProperty[ 'v3' ] = parseInt( v3, 10 );
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triangles.push( triangleProperty[ 'v1' ], triangleProperty[ 'v2' ], triangleProperty[ 'v3' ] ); // optional
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if ( p1 ) {
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triangleProperty[ 'p1' ] = parseInt( p1, 10 );
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}
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if ( p2 ) {
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triangleProperty[ 'p2' ] = parseInt( p2, 10 );
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}
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if ( p3 ) {
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triangleProperty[ 'p3' ] = parseInt( p3, 10 );
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}
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if ( pid ) {
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triangleProperty[ 'pid' ] = pid;
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}
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if ( 0 < Object.keys( triangleProperty ).length ) {
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triangleProperties.push( triangleProperty );
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}
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}
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meshData[ 'triangleProperties' ] = triangleProperties;
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meshData[ 'triangles' ] = new Uint32Array( triangles );
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return meshData;
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}
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function parseComponentsNode( componentsNode ) {
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const components = [];
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const componentNodes = componentsNode.querySelectorAll( 'component' );
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for ( let i = 0; i < componentNodes.length; i ++ ) {
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const componentNode = componentNodes[ i ];
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const componentData = parseComponentNode( componentNode );
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components.push( componentData );
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}
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return components;
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}
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function parseComponentNode( componentNode ) {
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const componentData = {};
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componentData[ 'objectId' ] = componentNode.getAttribute( 'objectid' ); // required
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const transform = componentNode.getAttribute( 'transform' );
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if ( transform ) {
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componentData[ 'transform' ] = parseTransform( transform );
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}
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return componentData;
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}
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function parseTransform( transform ) {
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const t = [];
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transform.split( ' ' ).forEach( function ( s ) {
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t.push( parseFloat( s ) );
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} );
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const matrix = new THREE.Matrix4();
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matrix.set( t[ 0 ], t[ 3 ], t[ 6 ], t[ 9 ], t[ 1 ], t[ 4 ], t[ 7 ], t[ 10 ], t[ 2 ], t[ 5 ], t[ 8 ], t[ 11 ], 0.0, 0.0, 0.0, 1.0 );
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return matrix;
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}
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function parseObjectNode( objectNode ) {
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const objectData = {
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type: objectNode.getAttribute( 'type' )
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};
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const id = objectNode.getAttribute( 'id' );
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if ( id ) {
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objectData[ 'id' ] = id;
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}
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const pid = objectNode.getAttribute( 'pid' );
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if ( pid ) {
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objectData[ 'pid' ] = pid;
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}
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const pindex = objectNode.getAttribute( 'pindex' );
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if ( pindex ) {
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objectData[ 'pindex' ] = pindex;
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}
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const thumbnail = objectNode.getAttribute( 'thumbnail' );
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if ( thumbnail ) {
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objectData[ 'thumbnail' ] = thumbnail;
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}
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const partnumber = objectNode.getAttribute( 'partnumber' );
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if ( partnumber ) {
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objectData[ 'partnumber' ] = partnumber;
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}
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const name = objectNode.getAttribute( 'name' );
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if ( name ) {
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objectData[ 'name' ] = name;
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}
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const meshNode = objectNode.querySelector( 'mesh' );
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if ( meshNode ) {
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objectData[ 'mesh' ] = parseMeshNode( meshNode );
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}
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const componentsNode = objectNode.querySelector( 'components' );
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if ( componentsNode ) {
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objectData[ 'components' ] = parseComponentsNode( componentsNode );
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}
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return objectData;
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}
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function parseResourcesNode( resourcesNode ) {
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const resourcesData = {};
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resourcesData[ 'basematerials' ] = {};
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const basematerialsNodes = resourcesNode.querySelectorAll( 'basematerials' );
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for ( let i = 0; i < basematerialsNodes.length; i ++ ) {
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const basematerialsNode = basematerialsNodes[ i ];
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const basematerialsData = parseBasematerialsNode( basematerialsNode );
|
|
resourcesData[ 'basematerials' ][ basematerialsData[ 'id' ] ] = basematerialsData;
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|
|
} //
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resourcesData[ 'texture2d' ] = {};
|
|
const textures2DNodes = resourcesNode.querySelectorAll( 'texture2d' );
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for ( let i = 0; i < textures2DNodes.length; i ++ ) {
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const textures2DNode = textures2DNodes[ i ];
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const texture2DData = parseTexture2DNode( textures2DNode );
|
|
resourcesData[ 'texture2d' ][ texture2DData[ 'id' ] ] = texture2DData;
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|
|
} //
|
|
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|
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resourcesData[ 'colorgroup' ] = {};
|
|
const colorGroupNodes = resourcesNode.querySelectorAll( 'colorgroup' );
|
|
|
|
for ( let i = 0; i < colorGroupNodes.length; i ++ ) {
|
|
|
|
const colorGroupNode = colorGroupNodes[ i ];
|
|
const colorGroupData = parseColorGroupNode( colorGroupNode );
|
|
resourcesData[ 'colorgroup' ][ colorGroupData[ 'id' ] ] = colorGroupData;
|
|
|
|
} //
|
|
|
|
|
|
resourcesData[ 'pbmetallicdisplayproperties' ] = {};
|
|
const pbmetallicdisplaypropertiesNodes = resourcesNode.querySelectorAll( 'pbmetallicdisplayproperties' );
|
|
|
|
for ( let i = 0; i < pbmetallicdisplaypropertiesNodes.length; i ++ ) {
|
|
|
|
const pbmetallicdisplaypropertiesNode = pbmetallicdisplaypropertiesNodes[ i ];
|
|
const pbmetallicdisplaypropertiesData = parseMetallicDisplaypropertiesNode( pbmetallicdisplaypropertiesNode );
|
|
resourcesData[ 'pbmetallicdisplayproperties' ][ pbmetallicdisplaypropertiesData[ 'id' ] ] = pbmetallicdisplaypropertiesData;
|
|
|
|
} //
|
|
|
|
|
|
resourcesData[ 'texture2dgroup' ] = {};
|
|
const textures2DGroupNodes = resourcesNode.querySelectorAll( 'texture2dgroup' );
|
|
|
|
for ( let i = 0; i < textures2DGroupNodes.length; i ++ ) {
|
|
|
|
const textures2DGroupNode = textures2DGroupNodes[ i ];
|
|
const textures2DGroupData = parseTextures2DGroupNode( textures2DGroupNode );
|
|
resourcesData[ 'texture2dgroup' ][ textures2DGroupData[ 'id' ] ] = textures2DGroupData;
|
|
|
|
} //
|
|
|
|
|
|
resourcesData[ 'object' ] = {};
|
|
const objectNodes = resourcesNode.querySelectorAll( 'object' );
|
|
|
|
for ( let i = 0; i < objectNodes.length; i ++ ) {
|
|
|
|
const objectNode = objectNodes[ i ];
|
|
const objectData = parseObjectNode( objectNode );
|
|
resourcesData[ 'object' ][ objectData[ 'id' ] ] = objectData;
|
|
|
|
}
|
|
|
|
return resourcesData;
|
|
|
|
}
|
|
|
|
function parseBuildNode( buildNode ) {
|
|
|
|
const buildData = [];
|
|
const itemNodes = buildNode.querySelectorAll( 'item' );
|
|
|
|
for ( let i = 0; i < itemNodes.length; i ++ ) {
|
|
|
|
const itemNode = itemNodes[ i ];
|
|
const buildItem = {
|
|
objectId: itemNode.getAttribute( 'objectid' )
|
|
};
|
|
const transform = itemNode.getAttribute( 'transform' );
|
|
|
|
if ( transform ) {
|
|
|
|
buildItem[ 'transform' ] = parseTransform( transform );
|
|
|
|
}
|
|
|
|
buildData.push( buildItem );
|
|
|
|
}
|
|
|
|
return buildData;
|
|
|
|
}
|
|
|
|
function parseModelNode( modelNode ) {
|
|
|
|
const modelData = {
|
|
unit: modelNode.getAttribute( 'unit' ) || 'millimeter'
|
|
};
|
|
const metadataNodes = modelNode.querySelectorAll( 'metadata' );
|
|
|
|
if ( metadataNodes ) {
|
|
|
|
modelData[ 'metadata' ] = parseMetadataNodes( metadataNodes );
|
|
|
|
}
|
|
|
|
const resourcesNode = modelNode.querySelector( 'resources' );
|
|
|
|
if ( resourcesNode ) {
|
|
|
|
modelData[ 'resources' ] = parseResourcesNode( resourcesNode );
|
|
|
|
}
|
|
|
|
const buildNode = modelNode.querySelector( 'build' );
|
|
|
|
if ( buildNode ) {
|
|
|
|
modelData[ 'build' ] = parseBuildNode( buildNode );
|
|
|
|
}
|
|
|
|
return modelData;
|
|
|
|
}
|
|
|
|
function buildTexture( texture2dgroup, objects, modelData, textureData ) {
|
|
|
|
const texid = texture2dgroup.texid;
|
|
const texture2ds = modelData.resources.texture2d;
|
|
const texture2d = texture2ds[ texid ];
|
|
|
|
if ( texture2d ) {
|
|
|
|
const data = textureData[ texture2d.path ];
|
|
const type = texture2d.contenttype;
|
|
const blob = new Blob( [ data ], {
|
|
type: type
|
|
} );
|
|
const sourceURI = URL.createObjectURL( blob );
|
|
const texture = textureLoader.load( sourceURI, function () {
|
|
|
|
URL.revokeObjectURL( sourceURI );
|
|
|
|
} );
|
|
texture.encoding = THREE.sRGBEncoding; // texture parameters
|
|
|
|
switch ( texture2d.tilestyleu ) {
|
|
|
|
case 'wrap':
|
|
texture.wrapS = THREE.RepeatWrapping;
|
|
break;
|
|
|
|
case 'mirror':
|
|
texture.wrapS = THREE.MirroredRepeatWrapping;
|
|
break;
|
|
|
|
case 'none':
|
|
case 'clamp':
|
|
texture.wrapS = THREE.ClampToEdgeWrapping;
|
|
break;
|
|
|
|
default:
|
|
texture.wrapS = THREE.RepeatWrapping;
|
|
|
|
}
|
|
|
|
switch ( texture2d.tilestylev ) {
|
|
|
|
case 'wrap':
|
|
texture.wrapT = THREE.RepeatWrapping;
|
|
break;
|
|
|
|
case 'mirror':
|
|
texture.wrapT = THREE.MirroredRepeatWrapping;
|
|
break;
|
|
|
|
case 'none':
|
|
case 'clamp':
|
|
texture.wrapT = THREE.ClampToEdgeWrapping;
|
|
break;
|
|
|
|
default:
|
|
texture.wrapT = THREE.RepeatWrapping;
|
|
|
|
}
|
|
|
|
switch ( texture2d.filter ) {
|
|
|
|
case 'auto':
|
|
texture.magFilter = THREE.LinearFilter;
|
|
texture.minFilter = THREE.LinearMipmapLinearFilter;
|
|
break;
|
|
|
|
case 'linear':
|
|
texture.magFilter = THREE.LinearFilter;
|
|
texture.minFilter = THREE.LinearFilter;
|
|
break;
|
|
|
|
case 'nearest':
|
|
texture.magFilter = THREE.NearestFilter;
|
|
texture.minFilter = THREE.NearestFilter;
|
|
break;
|
|
|
|
default:
|
|
texture.magFilter = THREE.LinearFilter;
|
|
texture.minFilter = THREE.LinearMipmapLinearFilter;
|
|
|
|
}
|
|
|
|
return texture;
|
|
|
|
} else {
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function buildBasematerialsMeshes( basematerials, triangleProperties, meshData, objects, modelData, textureData, objectData ) {
|
|
|
|
const objectPindex = objectData.pindex;
|
|
const materialMap = {};
|
|
|
|
for ( let i = 0, l = triangleProperties.length; i < l; i ++ ) {
|
|
|
|
const triangleProperty = triangleProperties[ i ];
|
|
const pindex = triangleProperty.p1 !== undefined ? triangleProperty.p1 : objectPindex;
|
|
if ( materialMap[ pindex ] === undefined ) materialMap[ pindex ] = [];
|
|
materialMap[ pindex ].push( triangleProperty );
|
|
|
|
} //
|
|
|
|
|
|
const keys = Object.keys( materialMap );
|
|
const meshes = [];
|
|
|
|
for ( let i = 0, l = keys.length; i < l; i ++ ) {
|
|
|
|
const materialIndex = keys[ i ];
|
|
const trianglePropertiesProps = materialMap[ materialIndex ];
|
|
const basematerialData = basematerials.basematerials[ materialIndex ];
|
|
const material = getBuild( basematerialData, objects, modelData, textureData, objectData, buildBasematerial ); //
|
|
|
|
const geometry = new THREE.BufferGeometry();
|
|
const positionData = [];
|
|
const vertices = meshData.vertices;
|
|
|
|
for ( let j = 0, jl = trianglePropertiesProps.length; j < jl; j ++ ) {
|
|
|
|
const triangleProperty = trianglePropertiesProps[ j ];
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 2 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 2 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 2 ] );
|
|
|
|
}
|
|
|
|
geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( positionData, 3 ) ); //
|
|
|
|
const mesh = new THREE.Mesh( geometry, material );
|
|
meshes.push( mesh );
|
|
|
|
}
|
|
|
|
return meshes;
|
|
|
|
}
|
|
|
|
function buildTexturedMesh( texture2dgroup, triangleProperties, meshData, objects, modelData, textureData, objectData ) {
|
|
|
|
// geometry
|
|
const geometry = new THREE.BufferGeometry();
|
|
const positionData = [];
|
|
const uvData = [];
|
|
const vertices = meshData.vertices;
|
|
const uvs = texture2dgroup.uvs;
|
|
|
|
for ( let i = 0, l = triangleProperties.length; i < l; i ++ ) {
|
|
|
|
const triangleProperty = triangleProperties[ i ];
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v1 * 3 + 2 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v2 * 3 + 2 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 0 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 1 ] );
|
|
positionData.push( vertices[ triangleProperty.v3 * 3 + 2 ] ); //
|
|
|
|
uvData.push( uvs[ triangleProperty.p1 * 2 + 0 ] );
|
|
uvData.push( uvs[ triangleProperty.p1 * 2 + 1 ] );
|
|
uvData.push( uvs[ triangleProperty.p2 * 2 + 0 ] );
|
|
uvData.push( uvs[ triangleProperty.p2 * 2 + 1 ] );
|
|
uvData.push( uvs[ triangleProperty.p3 * 2 + 0 ] );
|
|
uvData.push( uvs[ triangleProperty.p3 * 2 + 1 ] );
|
|
|
|
}
|
|
|
|
geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( positionData, 3 ) );
|
|
geometry.setAttribute( 'uv', new THREE.Float32BufferAttribute( uvData, 2 ) ); // material
|
|
|
|
const texture = getBuild( texture2dgroup, objects, modelData, textureData, objectData, buildTexture );
|
|
const material = new THREE.MeshPhongMaterial( {
|
|
map: texture,
|
|
flatShading: true
|
|
} ); // mesh
|
|
|
|
const mesh = new THREE.Mesh( geometry, material );
|
|
return mesh;
|
|
|
|
}
|
|
|
|
function buildVertexColorMesh( colorgroup, triangleProperties, meshData, objects, modelData, objectData ) {
|
|
|
|
// geometry
|
|
const geometry = new THREE.BufferGeometry();
|
|
const positionData = [];
|
|
const colorData = [];
|
|
const vertices = meshData.vertices;
|
|
const colors = colorgroup.colors;
|
|
|
|
for ( let i = 0, l = triangleProperties.length; i < l; i ++ ) {
|
|
|
|
const triangleProperty = triangleProperties[ i ];
|
|
const v1 = triangleProperty.v1;
|
|
const v2 = triangleProperty.v2;
|
|
const v3 = triangleProperty.v3;
|
|
positionData.push( vertices[ v1 * 3 + 0 ] );
|
|
positionData.push( vertices[ v1 * 3 + 1 ] );
|
|
positionData.push( vertices[ v1 * 3 + 2 ] );
|
|
positionData.push( vertices[ v2 * 3 + 0 ] );
|
|
positionData.push( vertices[ v2 * 3 + 1 ] );
|
|
positionData.push( vertices[ v2 * 3 + 2 ] );
|
|
positionData.push( vertices[ v3 * 3 + 0 ] );
|
|
positionData.push( vertices[ v3 * 3 + 1 ] );
|
|
positionData.push( vertices[ v3 * 3 + 2 ] ); //
|
|
|
|
const p1 = triangleProperty.p1 !== undefined ? triangleProperty.p1 : objectData.pindex;
|
|
const p2 = triangleProperty.p2 !== undefined ? triangleProperty.p2 : p1;
|
|
const p3 = triangleProperty.p3 !== undefined ? triangleProperty.p3 : p1;
|
|
colorData.push( colors[ p1 * 3 + 0 ] );
|
|
colorData.push( colors[ p1 * 3 + 1 ] );
|
|
colorData.push( colors[ p1 * 3 + 2 ] );
|
|
colorData.push( colors[ p2 * 3 + 0 ] );
|
|
colorData.push( colors[ p2 * 3 + 1 ] );
|
|
colorData.push( colors[ p2 * 3 + 2 ] );
|
|
colorData.push( colors[ p3 * 3 + 0 ] );
|
|
colorData.push( colors[ p3 * 3 + 1 ] );
|
|
colorData.push( colors[ p3 * 3 + 2 ] );
|
|
|
|
}
|
|
|
|
geometry.setAttribute( 'position', new THREE.Float32BufferAttribute( positionData, 3 ) );
|
|
geometry.setAttribute( 'color', new THREE.Float32BufferAttribute( colorData, 3 ) ); // material
|
|
|
|
const material = new THREE.MeshPhongMaterial( {
|
|
vertexColors: true,
|
|
flatShading: true
|
|
} ); // mesh
|
|
|
|
const mesh = new THREE.Mesh( geometry, material );
|
|
return mesh;
|
|
|
|
}
|
|
|
|
function buildDefaultMesh( meshData ) {
|
|
|
|
const geometry = new THREE.BufferGeometry();
|
|
geometry.setIndex( new THREE.BufferAttribute( meshData[ 'triangles' ], 1 ) );
|
|
geometry.setAttribute( 'position', new THREE.BufferAttribute( meshData[ 'vertices' ], 3 ) );
|
|
const material = new THREE.MeshPhongMaterial( {
|
|
color: 0xaaaaff,
|
|
flatShading: true
|
|
} );
|
|
const mesh = new THREE.Mesh( geometry, material );
|
|
return mesh;
|
|
|
|
}
|
|
|
|
function buildMeshes( resourceMap, meshData, objects, modelData, textureData, objectData ) {
|
|
|
|
const keys = Object.keys( resourceMap );
|
|
const meshes = [];
|
|
|
|
for ( let i = 0, il = keys.length; i < il; i ++ ) {
|
|
|
|
const resourceId = keys[ i ];
|
|
const triangleProperties = resourceMap[ resourceId ];
|
|
const resourceType = getResourceType( resourceId, modelData );
|
|
|
|
switch ( resourceType ) {
|
|
|
|
case 'material':
|
|
const basematerials = modelData.resources.basematerials[ resourceId ];
|
|
const newMeshes = buildBasematerialsMeshes( basematerials, triangleProperties, meshData, objects, modelData, textureData, objectData );
|
|
|
|
for ( let j = 0, jl = newMeshes.length; j < jl; j ++ ) {
|
|
|
|
meshes.push( newMeshes[ j ] );
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'texture':
|
|
const texture2dgroup = modelData.resources.texture2dgroup[ resourceId ];
|
|
meshes.push( buildTexturedMesh( texture2dgroup, triangleProperties, meshData, objects, modelData, textureData, objectData ) );
|
|
break;
|
|
|
|
case 'vertexColors':
|
|
const colorgroup = modelData.resources.colorgroup[ resourceId ];
|
|
meshes.push( buildVertexColorMesh( colorgroup, triangleProperties, meshData, objects, modelData, objectData ) );
|
|
break;
|
|
|
|
case 'default':
|
|
meshes.push( buildDefaultMesh( meshData ) );
|
|
break;
|
|
|
|
default:
|
|
console.error( 'THREE.3MFLoader: Unsupported resource type.' );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return meshes;
|
|
|
|
}
|
|
|
|
function getResourceType( pid, modelData ) {
|
|
|
|
if ( modelData.resources.texture2dgroup[ pid ] !== undefined ) {
|
|
|
|
return 'texture';
|
|
|
|
} else if ( modelData.resources.basematerials[ pid ] !== undefined ) {
|
|
|
|
return 'material';
|
|
|
|
} else if ( modelData.resources.colorgroup[ pid ] !== undefined ) {
|
|
|
|
return 'vertexColors';
|
|
|
|
} else if ( pid === 'default' ) {
|
|
|
|
return 'default';
|
|
|
|
} else {
|
|
|
|
return undefined;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function analyzeObject( modelData, meshData, objectData ) {
|
|
|
|
const resourceMap = {};
|
|
const triangleProperties = meshData[ 'triangleProperties' ];
|
|
const objectPid = objectData.pid;
|
|
|
|
for ( let i = 0, l = triangleProperties.length; i < l; i ++ ) {
|
|
|
|
const triangleProperty = triangleProperties[ i ];
|
|
let pid = triangleProperty.pid !== undefined ? triangleProperty.pid : objectPid;
|
|
if ( pid === undefined ) pid = 'default';
|
|
if ( resourceMap[ pid ] === undefined ) resourceMap[ pid ] = [];
|
|
resourceMap[ pid ].push( triangleProperty );
|
|
|
|
}
|
|
|
|
return resourceMap;
|
|
|
|
}
|
|
|
|
function buildGroup( meshData, objects, modelData, textureData, objectData ) {
|
|
|
|
const group = new THREE.Group();
|
|
const resourceMap = analyzeObject( modelData, meshData, objectData );
|
|
const meshes = buildMeshes( resourceMap, meshData, objects, modelData, textureData, objectData );
|
|
|
|
for ( let i = 0, l = meshes.length; i < l; i ++ ) {
|
|
|
|
group.add( meshes[ i ] );
|
|
|
|
}
|
|
|
|
return group;
|
|
|
|
}
|
|
|
|
function applyExtensions( extensions, meshData, modelXml ) {
|
|
|
|
if ( ! extensions ) {
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
const availableExtensions = [];
|
|
const keys = Object.keys( extensions );
|
|
|
|
for ( let i = 0; i < keys.length; i ++ ) {
|
|
|
|
const ns = keys[ i ];
|
|
|
|
for ( let j = 0; j < scope.availableExtensions.length; j ++ ) {
|
|
|
|
const extension = scope.availableExtensions[ j ];
|
|
|
|
if ( extension.ns === ns ) {
|
|
|
|
availableExtensions.push( extension );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
for ( let i = 0; i < availableExtensions.length; i ++ ) {
|
|
|
|
const extension = availableExtensions[ i ];
|
|
extension.apply( modelXml, extensions[ extension[ 'ns' ] ], meshData );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function getBuild( data, objects, modelData, textureData, objectData, builder ) {
|
|
|
|
if ( data.build !== undefined ) return data.build;
|
|
data.build = builder( data, objects, modelData, textureData, objectData );
|
|
return data.build;
|
|
|
|
}
|
|
|
|
function buildBasematerial( materialData, objects, modelData ) {
|
|
|
|
let material;
|
|
const displaypropertiesid = materialData.displaypropertiesid;
|
|
const pbmetallicdisplayproperties = modelData.resources.pbmetallicdisplayproperties;
|
|
|
|
if ( displaypropertiesid !== null && pbmetallicdisplayproperties[ displaypropertiesid ] !== undefined ) {
|
|
|
|
// metallic display property, use StandardMaterial
|
|
const pbmetallicdisplayproperty = pbmetallicdisplayproperties[ displaypropertiesid ];
|
|
const metallicData = pbmetallicdisplayproperty.data[ materialData.index ];
|
|
material = new THREE.MeshStandardMaterial( {
|
|
flatShading: true,
|
|
roughness: metallicData.roughness,
|
|
metalness: metallicData.metallicness
|
|
} );
|
|
|
|
} else {
|
|
|
|
// otherwise use PhongMaterial
|
|
material = new THREE.MeshPhongMaterial( {
|
|
flatShading: true
|
|
} );
|
|
|
|
}
|
|
|
|
material.name = materialData.name; // displaycolor MUST be specified with a value of a 6 or 8 digit hexadecimal number, e.g. "#RRGGBB" or "#RRGGBBAA"
|
|
|
|
const displaycolor = materialData.displaycolor;
|
|
const color = displaycolor.substring( 0, 7 );
|
|
material.color.setStyle( color );
|
|
material.color.convertSRGBToLinear(); // displaycolor is in sRGB
|
|
// process alpha if set
|
|
|
|
if ( displaycolor.length === 9 ) {
|
|
|
|
material.opacity = parseInt( displaycolor.charAt( 7 ) + displaycolor.charAt( 8 ), 16 ) / 255;
|
|
|
|
}
|
|
|
|
return material;
|
|
|
|
}
|
|
|
|
function buildComposite( compositeData, objects, modelData, textureData ) {
|
|
|
|
const composite = new THREE.Group();
|
|
|
|
for ( let j = 0; j < compositeData.length; j ++ ) {
|
|
|
|
const component = compositeData[ j ];
|
|
let build = objects[ component.objectId ];
|
|
|
|
if ( build === undefined ) {
|
|
|
|
buildObject( component.objectId, objects, modelData, textureData );
|
|
build = objects[ component.objectId ];
|
|
|
|
}
|
|
|
|
const object3D = build.clone(); // apply component transform
|
|
|
|
const transform = component.transform;
|
|
|
|
if ( transform ) {
|
|
|
|
object3D.applyMatrix4( transform );
|
|
|
|
}
|
|
|
|
composite.add( object3D );
|
|
|
|
}
|
|
|
|
return composite;
|
|
|
|
}
|
|
|
|
function buildObject( objectId, objects, modelData, textureData ) {
|
|
|
|
const objectData = modelData[ 'resources' ][ 'object' ][ objectId ];
|
|
|
|
if ( objectData[ 'mesh' ] ) {
|
|
|
|
const meshData = objectData[ 'mesh' ];
|
|
const extensions = modelData[ 'extensions' ];
|
|
const modelXml = modelData[ 'xml' ];
|
|
applyExtensions( extensions, meshData, modelXml );
|
|
objects[ objectData.id ] = getBuild( meshData, objects, modelData, textureData, objectData, buildGroup );
|
|
|
|
} else {
|
|
|
|
const compositeData = objectData[ 'components' ];
|
|
objects[ objectData.id ] = getBuild( compositeData, objects, modelData, textureData, objectData, buildComposite );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function buildObjects( data3mf ) {
|
|
|
|
const modelsData = data3mf.model;
|
|
const modelRels = data3mf.modelRels;
|
|
const objects = {};
|
|
const modelsKeys = Object.keys( modelsData );
|
|
const textureData = {}; // evaluate model relationships to textures
|
|
|
|
if ( modelRels ) {
|
|
|
|
for ( let i = 0, l = modelRels.length; i < l; i ++ ) {
|
|
|
|
const modelRel = modelRels[ i ];
|
|
const textureKey = modelRel.target.substring( 1 );
|
|
|
|
if ( data3mf.texture[ textureKey ] ) {
|
|
|
|
textureData[ modelRel.target ] = data3mf.texture[ textureKey ];
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} // start build
|
|
|
|
|
|
for ( let i = 0; i < modelsKeys.length; i ++ ) {
|
|
|
|
const modelsKey = modelsKeys[ i ];
|
|
const modelData = modelsData[ modelsKey ];
|
|
const objectIds = Object.keys( modelData[ 'resources' ][ 'object' ] );
|
|
|
|
for ( let j = 0; j < objectIds.length; j ++ ) {
|
|
|
|
const objectId = objectIds[ j ];
|
|
buildObject( objectId, objects, modelData, textureData );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return objects;
|
|
|
|
}
|
|
|
|
function fetch3DModelPart( rels ) {
|
|
|
|
for ( let i = 0; i < rels.length; i ++ ) {
|
|
|
|
const rel = rels[ i ];
|
|
const extension = rel.target.split( '.' ).pop();
|
|
if ( extension.toLowerCase() === 'model' ) return rel;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
function build( objects, data3mf ) {
|
|
|
|
const group = new THREE.Group();
|
|
const relationship = fetch3DModelPart( data3mf[ 'rels' ] );
|
|
const buildData = data3mf.model[ relationship[ 'target' ].substring( 1 ) ][ 'build' ];
|
|
|
|
for ( let i = 0; i < buildData.length; i ++ ) {
|
|
|
|
const buildItem = buildData[ i ];
|
|
const object3D = objects[ buildItem[ 'objectId' ] ]; // apply transform
|
|
|
|
const transform = buildItem[ 'transform' ];
|
|
|
|
if ( transform ) {
|
|
|
|
object3D.applyMatrix4( transform );
|
|
|
|
}
|
|
|
|
group.add( object3D );
|
|
|
|
}
|
|
|
|
return group;
|
|
|
|
}
|
|
|
|
const data3mf = loadDocument( data );
|
|
const objects = buildObjects( data3mf );
|
|
return build( objects, data3mf );
|
|
|
|
}
|
|
|
|
addExtension( extension ) {
|
|
|
|
this.availableExtensions.push( extension );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
THREE.ThreeMFLoader = ThreeMFLoader;
|
|
|
|
} )();
|
|
|