JSM: Added module and TS file for 3MFLoader.

docs/manual/en/introduction/Import-via-modules.html

@@ -116,6 +116,7 @@
 				</li>
 				<li>loaders
 					<ul>
+						<li>3MFLoader</li>
 						<li>AssimpJSONLoader</li>
 						<li>AssimpLoader</li>
 						<li>BabylonLoader</li>

examples/jsm/loaders/3MFLoader.d.ts

@@ -0,0 +1,15 @@
+import {
+  LoadingManager,
+  Group
+} from '../../../src/Three';
+
+export class ThreeMFLoader {
+  constructor(manager?: LoadingManager);
+  manager: LoadingManager;
+  path: string;
+  availableExtensions: object[];
+
+  load(url: string, onLoad: (object: Group) => void, onProgress?: (event: ProgressEvent) => void, onError?: (event: ErrorEvent) => void): void;
+  setPath(value: string): this;
+  parse(data: ArrayBuffer): Group;
+}

examples/jsm/loaders/3MFLoader.js

@@ -0,0 +1,943 @@
+/**
+ * @author technohippy / https://github.com/technohippy
+ * @author Mugen87 / https://github.com/Mugen87
+ *
+ * 3D Manufacturing Format (3MF) specification: https://3mf.io/specification/
+ *
+ * The following features from the core specification are supported:
+ *
+ * - 3D Models
+ * - Object Resources (Meshes and Components)
+ * - Material Resources (Base Materials)
+ *
+ * 3MF Materials and Properties Extension (e.g. textures) are not yet supported.
+ *
+ */
+
+import {
+	BufferAttribute,
+	BufferGeometry,
+	DefaultLoadingManager,
+	FileLoader,
+	Group,
+	LoaderUtils,
+	Matrix4,
+	Mesh,
+	MeshPhongMaterial
+} from "../../../build/three.module.js";
+
+var ThreeMFLoader = function ( manager ) {
+
+	this.manager = ( manager !== undefined ) ? manager : DefaultLoadingManager;
+	this.availableExtensions = [];
+
+};
+
+ThreeMFLoader.prototype = {
+
+	constructor: ThreeMFLoader,
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		var scope = this;
+		var loader = new FileLoader( scope.manager );
+		loader.setPath( scope.path );
+		loader.setResponseType( 'arraybuffer' );
+		loader.load( url, function ( buffer ) {
+
+			onLoad( scope.parse( buffer ) );
+
+		}, onProgress, onError );
+
+	},
+
+	setPath: function ( value ) {
+
+		this.path = value;
+		return this;
+
+	},
+
+	parse: function ( data ) {
+
+		var scope = this;
+
+		function loadDocument( data ) {
+
+			var zip = null;
+			var file = null;
+
+			var relsName;
+			var modelPartNames = [];
+			var printTicketPartNames = [];
+			var texturesPartNames = [];
+			var otherPartNames = [];
+
+			var rels;
+			var modelParts = {};
+			var printTicketParts = {};
+			var texturesParts = {};
+			var otherParts = {};
+
+			try {
+
+				zip = new JSZip( data ); // eslint-disable-line no-undef
+
+			} catch ( e ) {
+
+				if ( e instanceof ReferenceError ) {
+
+					console.error( 'THREE.3MFLoader: jszip missing and file is compressed.' );
+					return null;
+
+				}
+
+			}
+
+			for ( file in zip.files ) {
+
+				if ( file.match( /\_rels\/.rels$/ ) ) {
+
+					relsName = file;
+
+				} else if ( file.match( /^3D\/.*\.model$/ ) ) {
+
+					modelPartNames.push( file );
+
+				} else if ( file.match( /^3D\/Metadata\/.*\.xml$/ ) ) {
+
+					printTicketPartNames.push( file );
+
+				} else if ( file.match( /^3D\/Textures\/.*/ ) ) {
+
+					texturesPartNames.push( file );
+
+				} else if ( file.match( /^3D\/Other\/.*/ ) ) {
+
+					otherPartNames.push( file );
+
+				}
+
+			}
+
+			var relsView = new Uint8Array( zip.file( relsName ).asArrayBuffer() );
+			var relsFileText = LoaderUtils.decodeText( relsView );
+			rels = parseRelsXml( relsFileText );
+
+			for ( var i = 0; i < modelPartNames.length; i ++ ) {
+
+				var modelPart = modelPartNames[ i ];
+				var view = new Uint8Array( zip.file( modelPart ).asArrayBuffer() );
+
+				var fileText = LoaderUtils.decodeText( view );
+				var xmlData = new DOMParser().parseFromString( fileText, 'application/xml' );
+
+				if ( xmlData.documentElement.nodeName.toLowerCase() !== 'model' ) {
+
+					console.error( 'THREE.3MFLoader: Error loading 3MF - no 3MF document found: ', modelPart );
+
+				}
+
+				var modelNode = xmlData.querySelector( 'model' );
+				var extensions = {};
+
+				for ( var i = 0; i < modelNode.attributes.length; i ++ ) {
+
+					var attr = modelNode.attributes[ i ];
+					if ( attr.name.match( /^xmlns:(.+)$/ ) ) {
+
+						extensions[ attr.value ] = RegExp.$1;
+
+					}
+
+				}
+
+				var modelData = parseModelNode( modelNode );
+				modelData[ 'xml' ] = modelNode;
+
+				if ( 0 < Object.keys( extensions ).length ) {
+
+					modelData[ 'extensions' ] = extensions;
+
+				}
+
+				modelParts[ modelPart ] = modelData;
+
+			}
+
+			for ( var i = 0; i < texturesPartNames.length; i ++ ) {
+
+				var texturesPartName = texturesPartNames[ i ];
+				texturesParts[ texturesPartName ] = zip.file( texturesPartName ).asBinary();
+
+			}
+
+			return {
+				rels: rels,
+				model: modelParts,
+				printTicket: printTicketParts,
+				texture: texturesParts,
+				other: otherParts
+			};
+
+		}
+
+		function parseRelsXml( relsFileText ) {
+
+			var relsXmlData = new DOMParser().parseFromString( relsFileText, 'application/xml' );
+			var relsNode = relsXmlData.querySelector( 'Relationship' );
+			var target = relsNode.getAttribute( 'Target' );
+			var id = relsNode.getAttribute( 'Id' );
+			var type = relsNode.getAttribute( 'Type' );
+
+			return {
+				target: target,
+				id: id,
+				type: type
+			};
+
+		}
+
+		function parseMetadataNodes( metadataNodes ) {
+
+			var metadataData = {};
+
+			for ( var i = 0; i < metadataNodes.length; i ++ ) {
+
+				var metadataNode = metadataNodes[ i ];
+				var name = metadataNode.getAttribute( 'name' );
+				var validNames = [
+					'Title',
+					'Designer',
+					'Description',
+					'Copyright',
+					'LicenseTerms',
+					'Rating',
+					'CreationDate',
+					'ModificationDate'
+				];
+
+				if ( 0 <= validNames.indexOf( name ) ) {
+
+					metadataData[ name ] = metadataNode.textContent;
+
+				}
+
+			}
+
+			return metadataData;
+
+		}
+
+		function parseBasematerialsNode( basematerialsNode ) {
+
+			var basematerialsData = {
+				id: basematerialsNode.getAttribute( 'id' ), // required
+				basematerials: []
+			};
+
+			var basematerialNodes = basematerialsNode.querySelectorAll( 'base' );
+
+			for ( var i = 0; i < basematerialNodes.length; i ++ ) {
+
+				var basematerialNode = basematerialNodes[ i ];
+				var basematerialData = parseBasematerialNode( basematerialNode );
+				basematerialsData.basematerials.push( basematerialData );
+
+			}
+
+			return basematerialsData;
+
+		}
+
+		function parseBasematerialNode( basematerialNode ) {
+
+			var basematerialData = {};
+
+			basematerialData[ 'name' ] = basematerialNode.getAttribute( 'name' ); // required
+			basematerialData[ 'displaycolor' ] = basematerialNode.getAttribute( 'displaycolor' ); // required
+
+			return basematerialData;
+
+		}
+
+		function parseMeshNode( meshNode ) {
+
+			var meshData = {};
+
+			var vertices = [];
+			var vertexNodes = meshNode.querySelectorAll( 'vertices vertex' );
+
+			for ( var i = 0; i < vertexNodes.length; i ++ ) {
+
+				var vertexNode = vertexNodes[ i ];
+				var x = vertexNode.getAttribute( 'x' );
+				var y = vertexNode.getAttribute( 'y' );
+				var z = vertexNode.getAttribute( 'z' );
+
+				vertices.push( parseFloat( x ), parseFloat( y ), parseFloat( z ) );
+
+			}
+
+			meshData[ 'vertices' ] = new Float32Array( vertices.length );
+
+			for ( var i = 0; i < vertices.length; i ++ ) {
+
+				meshData[ 'vertices' ][ i ] = vertices[ i ];
+
+			}
+
+			var triangleProperties = [];
+			var triangles = [];
+			var triangleNodes = meshNode.querySelectorAll( 'triangles triangle' );
+
+			for ( var i = 0; i < triangleNodes.length; i ++ ) {
+
+				var triangleNode = triangleNodes[ i ];
+				var v1 = triangleNode.getAttribute( 'v1' );
+				var v2 = triangleNode.getAttribute( 'v2' );
+				var v3 = triangleNode.getAttribute( 'v3' );
+				var p1 = triangleNode.getAttribute( 'p1' );
+				var p2 = triangleNode.getAttribute( 'p2' );
+				var p3 = triangleNode.getAttribute( 'p3' );
+				var pid = triangleNode.getAttribute( 'pid' );
+
+				triangles.push( parseInt( v1, 10 ), parseInt( v2, 10 ), parseInt( v3, 10 ) );
+
+				var triangleProperty = {};
+
+				if ( p1 ) {
+
+					triangleProperty[ 'p1' ] = parseInt( p1, 10 );
+
+				}
+
+				if ( p2 ) {
+
+					triangleProperty[ 'p2' ] = parseInt( p2, 10 );
+
+				}
+
+				if ( p3 ) {
+
+					triangleProperty[ 'p3' ] = parseInt( p3, 10 );
+
+				}
+
+				if ( pid ) {
+
+					triangleProperty[ 'pid' ] = pid;
+
+				}
+
+				if ( 0 < Object.keys( triangleProperty ).length ) {
+
+					triangleProperties.push( triangleProperty );
+
+				}
+
+			}
+
+			meshData[ 'triangleProperties' ] = triangleProperties;
+			meshData[ 'triangles' ] = new Uint32Array( triangles.length );
+
+			for ( var i = 0; i < triangles.length; i ++ ) {
+
+				meshData[ 'triangles' ][ i ] = triangles[ i ];
+
+			}
+
+			return meshData;
+
+		}
+
+		function parseComponentsNode( componentsNode ) {
+
+			var components = [];
+
+			var componentNodes = componentsNode.querySelectorAll( 'component' );
+
+			for ( var i = 0; i < componentNodes.length; i ++ ) {
+
+				var componentNode = componentNodes[ i ];
+				var componentData = parseComponentNode( componentNode );
+				components.push( componentData );
+
+			}
+
+			return components;
+
+		}
+
+		function parseComponentNode( componentNode ) {
+
+			var componentData = {};
+
+			componentData[ 'objectId' ] = componentNode.getAttribute( 'objectid' ); // required
+
+			var transform = componentNode.getAttribute( 'transform' );
+
+			if ( transform ) {
+
+				componentData[ 'transform' ] = parseTransform( transform );
+
+			}
+
+			return componentData;
+
+		}
+
+		function parseTransform( transform ) {
+
+			var t = [];
+			transform.split( ' ' ).forEach( function ( s ) {
+
+				t.push( parseFloat( s ) );
+
+			} );
+
+			var matrix = new Matrix4();
+			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
+			);
+
+			return matrix;
+
+		}
+
+		function parseObjectNode( objectNode ) {
+
+			var objectData = {
+				type: objectNode.getAttribute( 'type' )
+			};
+
+			var id = objectNode.getAttribute( 'id' );
+
+			if ( id ) {
+
+				objectData[ 'id' ] = id;
+
+			}
+
+			var pid = objectNode.getAttribute( 'pid' );
+
+			if ( pid ) {
+
+				objectData[ 'pid' ] = pid;
+
+			}
+
+			var pindex = objectNode.getAttribute( 'pindex' );
+
+			if ( pindex ) {
+
+				objectData[ 'pindex' ] = pindex;
+
+			}
+
+			var thumbnail = objectNode.getAttribute( 'thumbnail' );
+
+			if ( thumbnail ) {
+
+				objectData[ 'thumbnail' ] = thumbnail;
+
+			}
+
+			var partnumber = objectNode.getAttribute( 'partnumber' );
+
+			if ( partnumber ) {
+
+				objectData[ 'partnumber' ] = partnumber;
+
+			}
+
+			var name = objectNode.getAttribute( 'name' );
+
+			if ( name ) {
+
+				objectData[ 'name' ] = name;
+
+			}
+
+			var meshNode = objectNode.querySelector( 'mesh' );
+
+			if ( meshNode ) {
+
+				objectData[ 'mesh' ] = parseMeshNode( meshNode );
+
+			}
+
+			var componentsNode = objectNode.querySelector( 'components' );
+
+			if ( componentsNode ) {
+
+				objectData[ 'components' ] = parseComponentsNode( componentsNode );
+
+			}
+
+			return objectData;
+
+		}
+
+		function parseResourcesNode( resourcesNode ) {
+
+			var resourcesData = {};
+			var basematerialsNode = resourcesNode.querySelector( 'basematerials' );
+
+			if ( basematerialsNode ) {
+
+				resourcesData[ 'basematerials' ] = parseBasematerialsNode( basematerialsNode );
+
+			}
+
+			resourcesData[ 'object' ] = {};
+			var objectNodes = resourcesNode.querySelectorAll( 'object' );
+
+			for ( var i = 0; i < objectNodes.length; i ++ ) {
+
+				var objectNode = objectNodes[ i ];
+				var objectData = parseObjectNode( objectNode );
+				resourcesData[ 'object' ][ objectData[ 'id' ] ] = objectData;
+
+			}
+
+			return resourcesData;
+
+		}
+
+		function parseBuildNode( buildNode ) {
+
+			var buildData = [];
+			var itemNodes = buildNode.querySelectorAll( 'item' );
+
+			for ( var i = 0; i < itemNodes.length; i ++ ) {
+
+				var itemNode = itemNodes[ i ];
+				var buildItem = {
+					objectId: itemNode.getAttribute( 'objectid' )
+				};
+				var transform = itemNode.getAttribute( 'transform' );
+
+				if ( transform ) {
+
+					buildItem[ 'transform' ] = parseTransform( transform );
+
+				}
+
+				buildData.push( buildItem );
+
+			}
+
+			return buildData;
+
+		}
+
+		function parseModelNode( modelNode ) {
+
+			var modelData = { unit: modelNode.getAttribute( 'unit' ) || 'millimeter' };
+			var metadataNodes = modelNode.querySelectorAll( 'metadata' );
+
+			if ( metadataNodes ) {
+
+				modelData[ 'metadata' ] = parseMetadataNodes( metadataNodes );
+
+			}
+
+			var resourcesNode = modelNode.querySelector( 'resources' );
+
+			if ( resourcesNode ) {
+
+				modelData[ 'resources' ] = parseResourcesNode( resourcesNode );
+
+			}
+
+			var buildNode = modelNode.querySelector( 'build' );
+
+			if ( buildNode ) {
+
+				modelData[ 'build' ] = parseBuildNode( buildNode );
+
+			}
+
+			return modelData;
+
+		}
+
+		function buildMesh( meshData, objects, modelData, objectData ) {
+
+			// geometry
+
+			var geometry = new BufferGeometry();
+			geometry.setIndex( new BufferAttribute( meshData[ 'triangles' ], 1 ) );
+			geometry.addAttribute( 'position', new BufferAttribute( meshData[ 'vertices' ], 3 ) );
+
+			// groups
+
+			var basematerialsData = modelData[ 'resources' ][ 'basematerials' ];
+			var triangleProperties = meshData[ 'triangleProperties' ];
+
+			var start = 0;
+			var count = 0;
+			var currentMaterialIndex = - 1;
+
+			for ( var i = 0, l = triangleProperties.length; i < l; i ++ ) {
+
+				var triangleProperty = triangleProperties[ i ];
+				var pid = triangleProperty.pid;
+
+				// only proceed if the triangle refers to a basematerials definition
+
+				if ( basematerialsData && ( basematerialsData.id === pid ) ) {
+
+					if ( currentMaterialIndex === - 1 ) currentMaterialIndex = triangleProperty.p1;
+
+					if ( currentMaterialIndex === triangleProperty.p1 ) {
+
+						count += 3; // primitves per triangle
+
+					} else {
+
+						geometry.addGroup( start, count, currentMaterialIndex );
+
+						start += count;
+						count = 3;
+						currentMaterialIndex = triangleProperty.p1;
+
+					}
+
+				}
+
+			}
+
+			if ( geometry.groups.length > 0 ) mergeGroups( geometry );
+
+			geometry.computeBoundingSphere();
+
+			// material
+
+			var material;
+
+			// add material if an object-level definition is present
+
+			if ( basematerialsData && ( basematerialsData.id === objectData.pid ) ) {
+
+				var materialIndex = objectData.pindex;
+				var basematerialData = basematerialsData.basematerials[ materialIndex ];
+
+				material = getBuild( basematerialData, objects, modelData, objectData, buildBasematerial );
+
+			}
+
+			// add/overwrite material if definitions on triangles are present
+
+			if ( geometry.groups.length > 0 ) {
+
+				var groups = geometry.groups;
+				material = [];
+
+				for ( var i = 0, l = groups.length; i < l; i ++ ) {
+
+					var group = groups[ i ];
+					var basematerialData = basematerialsData.basematerials[ group.materialIndex ];
+
+					material.push( getBuild( basematerialData, objects, modelData, objectData, buildBasematerial ) );
+
+				}
+
+			}
+
+			// default material
+
+			if ( material === undefined ) material = new MeshPhongMaterial( { color: 0xaaaaff, flatShading: true } );
+
+			return new Mesh( geometry, material );
+
+		}
+
+		function mergeGroups( geometry ) {
+
+			// sort by material index
+
+			var groups = geometry.groups.sort( function ( a, b ) {
+
+				if ( a.materialIndex !== b.materialIndex ) return a.materialIndex - b.materialIndex;
+
+				return a.start - b.start;
+
+			} );
+
+			// reorganize index buffer
+
+			var index = geometry.index;
+
+			var itemSize = index.itemSize;
+			var srcArray = index.array;
+
+			var targetOffset = 0;
+
+			var targetArray = new srcArray.constructor( srcArray.length );
+
+			for ( var i = 0; i < groups.length; i ++ ) {
+
+				var group = groups[ i ];
+
+				var groupLength = group.count * itemSize;
+				var groupStart = group.start * itemSize;
+
+				var sub = srcArray.subarray( groupStart, groupStart + groupLength );
+
+				targetArray.set( sub, targetOffset );
+
+				targetOffset += groupLength;
+
+			}
+
+			srcArray.set( targetArray );
+
+			// update groups
+
+			var start = 0;
+
+			for ( i = 0; i < groups.length; i ++ ) {
+
+				group = groups[ i ];
+
+				group.start = start;
+				start += group.count;
+
+			}
+
+			// merge groups
+
+			var lastGroup = groups[ 0 ];
+
+			geometry.groups = [ lastGroup ];
+
+			for ( i = 1; i < groups.length; i ++ ) {
+
+				group = groups[ i ];
+
+				if ( lastGroup.materialIndex === group.materialIndex ) {
+
+					lastGroup.count += group.count;
+
+				} else {
+
+					lastGroup = group;
+					geometry.groups.push( lastGroup );
+
+				}
+
+			}
+
+		}
+
+		function applyExtensions( extensions, meshData, modelXml ) {
+
+			if ( ! extensions ) {
+
+				return;
+
+			}
+
+			var availableExtensions = [];
+			var keys = Object.keys( extensions );
+
+			for ( var i = 0; i < keys.length; i ++ ) {
+
+				var ns = keys[ i ];
+
+				for ( var j = 0; j < scope.availableExtensions.length; j ++ ) {
+
+					var extension = scope.availableExtensions[ j ];
+
+					if ( extension.ns === ns ) {
+
+						availableExtensions.push( extension );
+
+					}
+
+				}
+
+			}
+
+			for ( var i = 0; i < availableExtensions.length; i ++ ) {
+
+				var extension = availableExtensions[ i ];
+				extension.apply( modelXml, extensions[ extension[ 'ns' ] ], meshData );
+
+			}
+
+		}
+
+		function getBuild( data, objects, modelData, objectData, builder ) {
+
+			if ( data.build !== undefined ) return data.build;
+
+			data.build = builder( data, objects, modelData, objectData );
+
+			return data.build;
+
+		}
+
+		function buildBasematerial( materialData ) {
+
+			var material = new 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"
+
+			var displaycolor = materialData.displaycolor;
+
+			var 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 ) {
+
+			var composite = new Group();
+
+			for ( var j = 0; j < compositeData.length; j ++ ) {
+
+				var component = compositeData[ j ];
+				var build = objects[ component.objectId ];
+
+				if ( build === undefined ) {
+
+					buildObject( component.objectId, objects, modelData );
+					build = objects[ component.objectId ];
+
+				}
+
+				var object3D = build.clone();
+
+				// apply component transfrom
+
+				var transform = component.transform;
+
+				if ( transform ) {
+
+					object3D.applyMatrix( transform );
+
+				}
+
+				composite.add( object3D );
+
+			}
+
+			return composite;
+
+		}
+
+		function buildObject( objectId, objects, modelData ) {
+
+			var objectData = modelData[ 'resources' ][ 'object' ][ objectId ];
+
+			if ( objectData[ 'mesh' ] ) {
+
+				var meshData = objectData[ 'mesh' ];
+
+				var extensions = modelData[ 'extensions' ];
+				var modelXml = modelData[ 'xml' ];
+
+				applyExtensions( extensions, meshData, modelXml );
+
+				objects[ objectData.id ] = getBuild( meshData, objects, modelData, objectData, buildMesh );
+
+			} else {
+
+				var compositeData = objectData[ 'components' ];
+
+				objects[ objectData.id ] = getBuild( compositeData, objects, modelData, objectData, buildComposite );
+
+			}
+
+		}
+
+		function buildObjects( data3mf ) {
+
+			var modelsData = data3mf.model;
+			var objects = {};
+			var modelsKeys = Object.keys( modelsData );
+
+			for ( var i = 0; i < modelsKeys.length; i ++ ) {
+
+				var modelsKey = modelsKeys[ i ];
+				var modelData = modelsData[ modelsKey ];
+
+				var objectIds = Object.keys( modelData[ 'resources' ][ 'object' ] );
+
+				for ( var j = 0; j < objectIds.length; j ++ ) {
+
+					var objectId = objectIds[ j ];
+
+					buildObject( objectId, objects, modelData );
+
+				}
+
+			}
+
+			return objects;
+
+		}
+
+		function build( objects, refs, data3mf ) {
+
+			var group = new Group();
+			var buildData = data3mf.model[ refs[ 'target' ].substring( 1 ) ][ 'build' ];
+
+			for ( var i = 0; i < buildData.length; i ++ ) {
+
+				var buildItem = buildData[ i ];
+				var object3D = objects[ buildItem[ 'objectId' ] ];
+
+				// apply transform
+
+				var transform = buildItem[ 'transform' ];
+
+				if ( transform ) {
+
+					object3D.applyMatrix( transform );
+
+				}
+
+				group.add( object3D );
+
+			}
+
+			return group;
+
+		}
+
+		var data3mf = loadDocument( data );
+		var objects = buildObjects( data3mf );
+
+		return build( objects, data3mf[ 'rels' ], data3mf );
+
+	},
+
+	addExtension: function ( extension ) {
+
+		this.availableExtensions.push( extension );
+
+	}
+
+};
+
+export { ThreeMFLoader };

utils/modularize.js

@@ -34,6 +34,7 @@ var files = [
 	{ path: 'exporters/STLExporter.js', dependencies: [], ignoreList: [] },
 	{ path: 'exporters/TypedGeometryExporter.js', dependencies: [], ignoreList: [] },
 
+	{ path: 'loaders/3MFLoader.js', dependencies: [], ignoreList: [] },
 	{ path: 'loaders/AssimpJSONLoader.js', dependencies: [], ignoreList: [] },
 	{ path: 'loaders/AssimpLoader.js', dependencies: [], ignoreList: [] },
 	{ path: 'loaders/BabylonLoader.js', dependencies: [], ignoreList: [] },