diff --git a/dist/xeokit-sdk.cjs.js b/dist/xeokit-sdk.cjs.js
index 56ad61bed0..ae39169e55 100644
--- a/dist/xeokit-sdk.cjs.js
+++ b/dist/xeokit-sdk.cjs.js
@@ -204538,7 +204538,7 @@ class WebIFCLoaderPlugin extends Plugin {
     }
 
     _parseSpatialChildren(ctx, ifcElement, parentMetaObjectId) {
-        const metaObjectType = ifcElement.__proto__.constructor.name;
+        const metaObjectType = this._ifcAPI.GetNameFromTypeCode(ifcElement.type);
         if (ctx.includeTypes && (!ctx.includeTypes[metaObjectType])) {
             return;
         }
@@ -204553,7 +204553,7 @@ class WebIFCLoaderPlugin extends Plugin {
 
     _createMetaObject(ctx, ifcElement, parentMetaObjectId) {
         const id = ifcElement.GlobalId.value;
-        const metaObjectType = ifcElement.__proto__.constructor.name;
+        const metaObjectType = this._ifcAPI.GetNameFromTypeCode(ifcElement.type);
         const metaObjectName = (ifcElement.Name && ifcElement.Name.value !== "") ? ifcElement.Name.value : metaObjectType;
         const metaObject = {
             id: id,
diff --git a/dist/xeokit-sdk.es.js b/dist/xeokit-sdk.es.js
index 2c33feb4bd..7c3722a2ed 100644
--- a/dist/xeokit-sdk.es.js
+++ b/dist/xeokit-sdk.es.js
@@ -204534,7 +204534,7 @@ class WebIFCLoaderPlugin extends Plugin {
     }
 
     _parseSpatialChildren(ctx, ifcElement, parentMetaObjectId) {
-        const metaObjectType = ifcElement.__proto__.constructor.name;
+        const metaObjectType = this._ifcAPI.GetNameFromTypeCode(ifcElement.type);
         if (ctx.includeTypes && (!ctx.includeTypes[metaObjectType])) {
             return;
         }
@@ -204549,7 +204549,7 @@ class WebIFCLoaderPlugin extends Plugin {
 
     _createMetaObject(ctx, ifcElement, parentMetaObjectId) {
         const id = ifcElement.GlobalId.value;
-        const metaObjectType = ifcElement.__proto__.constructor.name;
+        const metaObjectType = this._ifcAPI.GetNameFromTypeCode(ifcElement.type);
         const metaObjectName = (ifcElement.Name && ifcElement.Name.value !== "") ? ifcElement.Name.value : metaObjectType;
         const metaObject = {
             id: id,
diff --git a/dist/xeokit-sdk.es5.js b/dist/xeokit-sdk.es5.js
index f463e18866..7eaf1e109f 100644
--- a/dist/xeokit-sdk.es5.js
+++ b/dist/xeokit-sdk.es5.js
@@ -28849,7 +28849,7 @@ var isBase64=!!dataUriRegexResult[2];var data=dataUriRegexResult[3];data=window.
      */},{key:"load",value:function load(){var _this2470=this;var params=arguments.length>0&&arguments[0]!==undefined?arguments[0]:{};if(params.id&&this.viewer.scene.components[params.id]){this.error("Component with this ID already exists in viewer: "+params.id+" - will autogenerate this ID");delete params.id;}var sceneModel=new SceneModel(this.viewer.scene,utils.apply(params,{isModel:true}));if(!params.src&&!params.ifc){this.error("load() param expected: src or IFC");return sceneModel;// Return new empty model
 }var options={autoNormals:true};if(params.loadMetadata!==false){var includeTypes=params.includeTypes||this._includeTypes;var excludeTypes=params.excludeTypes||this._excludeTypes;var objectDefaults=params.objectDefaults||this._objectDefaults;if(includeTypes){options.includeTypesMap={};for(var _i586=0,len=includeTypes.length;_i586<len;_i586++){options.includeTypesMap[includeTypes[_i586]]=true;}}if(excludeTypes){options.excludeTypesMap={};for(var _i587=0,_len124=excludeTypes.length;_i587<_len124;_i587++){options.excludeTypesMap[excludeTypes[_i587]]=true;}}if(objectDefaults){options.objectDefaults=objectDefaults;}options.excludeUnclassifiedObjects=params.excludeUnclassifiedObjects!==undefined?!!params.excludeUnclassifiedObjects:this._excludeUnclassifiedObjects;options.globalizeObjectIds=params.globalizeObjectIds!==undefined?!!params.globalizeObjectIds:this._globalizeObjectIds;}this.on("initialized",function(){try{if(params.src){_this2470._loadModel(params.src,params,options,sceneModel);}else{_this2470._parseModel(params.ifc,params,options,sceneModel);}}catch(e){_this2470.error(e);sceneModel.fire("error",e);}});return sceneModel;}},{key:"_loadModel",value:function _loadModel(src,params,options,sceneModel){var _this2471=this;var spinner=this.viewer.scene.canvas.spinner;spinner.processes++;this._dataSource.getIFC(params.src,function(arrayBuffer){_this2471._parseModel(arrayBuffer,params,options,sceneModel);spinner.processes--;},function(errMsg){spinner.processes--;_this2471.error(errMsg);sceneModel.fire("error",errMsg);});}},{key:"_parseModel",value:function _parseModel(arrayBuffer,params,options,sceneModel){if(sceneModel.destroyed){return;}var stats=params.stats||{};stats.sourceFormat="IFC";stats.schemaVersion="";stats.title="";stats.author="";stats.created="";stats.numMetaObjects=0;stats.numPropertySets=0;stats.numObjects=0;stats.numGeometries=0;stats.numTriangles=0;stats.numVertices=0;if(options.wasmPath){this._ifcAPI.SetWasmPath(options.wasmPath);}var dataArray=new Uint8Array(arrayBuffer);var modelID=this._ifcAPI.OpenModel(dataArray);var lines=this._ifcAPI.GetLineIDsWithType(modelID,IFCPROJECT);var ifcProjectId=lines.get(0);var loadMetadata=params.loadMetadata!==false;var metadata=loadMetadata?{id:"",projectId:""+ifcProjectId,author:"",createdAt:"",schema:"",creatingApplication:"",metaObjects:[],propertySets:[]}:null;var ctx={modelID:modelID,sceneModel:sceneModel,loadMetadata:loadMetadata,metadata:metadata,metaObjects:{},options:options,log:function log(msg){},nextId:0,stats:stats};if(loadMetadata){if(options.includeTypes){ctx.includeTypes={};for(var _i588=0,len=options.includeTypes.length;_i588<len;_i588++){ctx.includeTypes[options.includeTypes[_i588]]=true;}}if(options.excludeTypes){ctx.excludeTypes={};for(var _i589=0,_len125=options.excludeTypes.length;_i589<_len125;_i589++){ctx.excludeTypes[options.excludeTypes[_i589]]=true;}}this._parseMetaObjects(ctx);this._parsePropertySets(ctx);}this._parseGeometry(ctx);sceneModel.finalize();if(loadMetadata){var metaModelId=sceneModel.id;this.viewer.metaScene.createMetaModel(metaModelId,ctx.metadata,options);}sceneModel.scene.once("tick",function(){if(sceneModel.destroyed){return;}sceneModel.scene.fire("modelLoaded",sceneModel.id);// FIXME: Assumes listeners know order of these two events
 sceneModel.fire("loaded",true,false);// Don't forget the event, for late subscribers
-});}},{key:"_parseMetaObjects",value:function _parseMetaObjects(ctx){var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,IFCPROJECT);var ifcProjectId=lines.get(0);var ifcProject=this._ifcAPI.GetLine(ctx.modelID,ifcProjectId);this._parseSpatialChildren(ctx,ifcProject);}},{key:"_parseSpatialChildren",value:function _parseSpatialChildren(ctx,ifcElement,parentMetaObjectId){var metaObjectType=ifcElement.__proto__.constructor.name;if(ctx.includeTypes&&!ctx.includeTypes[metaObjectType]){return;}if(ctx.excludeTypes&&ctx.excludeTypes[metaObjectType]){return;}this._createMetaObject(ctx,ifcElement,parentMetaObjectId);var metaObjectId=ifcElement.GlobalId.value;this._parseRelatedItemsOfType(ctx,ifcElement.expressID,'RelatingObject','RelatedObjects',IFCRELAGGREGATES,metaObjectId);this._parseRelatedItemsOfType(ctx,ifcElement.expressID,'RelatingStructure','RelatedElements',IFCRELCONTAINEDINSPATIALSTRUCTURE,metaObjectId);}},{key:"_createMetaObject",value:function _createMetaObject(ctx,ifcElement,parentMetaObjectId){var id=ifcElement.GlobalId.value;var metaObjectType=ifcElement.__proto__.constructor.name;var metaObjectName=ifcElement.Name&&ifcElement.Name.value!==""?ifcElement.Name.value:metaObjectType;var metaObject={id:id,name:metaObjectName,type:metaObjectType,parent:parentMetaObjectId};ctx.metadata.metaObjects.push(metaObject);ctx.metaObjects[id]=metaObject;ctx.stats.numMetaObjects++;}},{key:"_parseRelatedItemsOfType",value:function _parseRelatedItemsOfType(ctx,id,relation,related,type,parentMetaObjectId){var _this2472=this;var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,type);for(var _i590=0;_i590<lines.size();_i590++){var relID=lines.get(_i590);var rel=this._ifcAPI.GetLine(ctx.modelID,relID);var relatedItems=rel[relation];var foundElement=false;if(Array.isArray(relatedItems)){var values=relatedItems.map(function(item){return item.value;});foundElement=values.includes(id);}else{foundElement=relatedItems.value===id;}if(foundElement){var element=rel[related];if(!Array.isArray(element)){var ifcElement=this._ifcAPI.GetLine(ctx.modelID,element.value);this._parseSpatialChildren(ctx,ifcElement,parentMetaObjectId);}else{element.forEach(function(element2){var ifcElement=_this2472._ifcAPI.GetLine(ctx.modelID,element2.value);_this2472._parseSpatialChildren(ctx,ifcElement,parentMetaObjectId);});}}}}},{key:"_parsePropertySets",value:function _parsePropertySets(ctx){var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,IFCRELDEFINESBYPROPERTIES);for(var _i591=0;_i591<lines.size();_i591++){var relID=lines.get(_i591);var rel=this._ifcAPI.GetLine(ctx.modelID,relID,true);if(rel){var relatingPropertyDefinition=rel.RelatingPropertyDefinition;if(!relatingPropertyDefinition){continue;}var propertySetId=relatingPropertyDefinition.GlobalId.value;var props=relatingPropertyDefinition.HasProperties;if(props&&props.length>0){var propertySetType="Default";var propertySetName=relatingPropertyDefinition.Name.value;var properties=[];for(var _i592=0,len=props.length;_i592<len;_i592++){var prop=props[_i592];var _name8=prop.Name;var nominalValue=prop.NominalValue;if(_name8&&nominalValue){var property={name:_name8.value,type:nominalValue.type,value:nominalValue.value,valueType:nominalValue.valueType};if(prop.Description){property.description=prop.Description.value;}else if(nominalValue.description){property.description=nominalValue.description;}properties.push(property);}}var propertySet={id:propertySetId,type:propertySetType,name:propertySetName,properties:properties};ctx.metadata.propertySets.push(propertySet);ctx.stats.numPropertySets++;var relatedObjects=rel.RelatedObjects;if(!relatedObjects||relatedObjects.length===0){return;}for(var _i593=0,_len126=relatedObjects.length;_i593<_len126;_i593++){var relatedObject=relatedObjects[_i593];var metaObjectId=relatedObject.GlobalId.value;var metaObject=ctx.metaObjects[metaObjectId];if(metaObject){if(!metaObject.propertySetIds){metaObject.propertySetIds=[];}metaObject.propertySetIds.push(propertySetId);}}}}}}},{key:"_parseGeometry",value:function _parseGeometry(ctx){var _this2473=this;this._ifcAPI.StreamAllMeshes(ctx.modelID,function(flatMesh){// TODO: Can we do geometry reuse with web-ifc?
+});}},{key:"_parseMetaObjects",value:function _parseMetaObjects(ctx){var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,IFCPROJECT);var ifcProjectId=lines.get(0);var ifcProject=this._ifcAPI.GetLine(ctx.modelID,ifcProjectId);this._parseSpatialChildren(ctx,ifcProject);}},{key:"_parseSpatialChildren",value:function _parseSpatialChildren(ctx,ifcElement,parentMetaObjectId){var metaObjectType=this._ifcAPI.GetNameFromTypeCode(ifcElement.type);if(ctx.includeTypes&&!ctx.includeTypes[metaObjectType]){return;}if(ctx.excludeTypes&&ctx.excludeTypes[metaObjectType]){return;}this._createMetaObject(ctx,ifcElement,parentMetaObjectId);var metaObjectId=ifcElement.GlobalId.value;this._parseRelatedItemsOfType(ctx,ifcElement.expressID,'RelatingObject','RelatedObjects',IFCRELAGGREGATES,metaObjectId);this._parseRelatedItemsOfType(ctx,ifcElement.expressID,'RelatingStructure','RelatedElements',IFCRELCONTAINEDINSPATIALSTRUCTURE,metaObjectId);}},{key:"_createMetaObject",value:function _createMetaObject(ctx,ifcElement,parentMetaObjectId){var id=ifcElement.GlobalId.value;var metaObjectType=this._ifcAPI.GetNameFromTypeCode(ifcElement.type);var metaObjectName=ifcElement.Name&&ifcElement.Name.value!==""?ifcElement.Name.value:metaObjectType;var metaObject={id:id,name:metaObjectName,type:metaObjectType,parent:parentMetaObjectId};ctx.metadata.metaObjects.push(metaObject);ctx.metaObjects[id]=metaObject;ctx.stats.numMetaObjects++;}},{key:"_parseRelatedItemsOfType",value:function _parseRelatedItemsOfType(ctx,id,relation,related,type,parentMetaObjectId){var _this2472=this;var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,type);for(var _i590=0;_i590<lines.size();_i590++){var relID=lines.get(_i590);var rel=this._ifcAPI.GetLine(ctx.modelID,relID);var relatedItems=rel[relation];var foundElement=false;if(Array.isArray(relatedItems)){var values=relatedItems.map(function(item){return item.value;});foundElement=values.includes(id);}else{foundElement=relatedItems.value===id;}if(foundElement){var element=rel[related];if(!Array.isArray(element)){var ifcElement=this._ifcAPI.GetLine(ctx.modelID,element.value);this._parseSpatialChildren(ctx,ifcElement,parentMetaObjectId);}else{element.forEach(function(element2){var ifcElement=_this2472._ifcAPI.GetLine(ctx.modelID,element2.value);_this2472._parseSpatialChildren(ctx,ifcElement,parentMetaObjectId);});}}}}},{key:"_parsePropertySets",value:function _parsePropertySets(ctx){var lines=this._ifcAPI.GetLineIDsWithType(ctx.modelID,IFCRELDEFINESBYPROPERTIES);for(var _i591=0;_i591<lines.size();_i591++){var relID=lines.get(_i591);var rel=this._ifcAPI.GetLine(ctx.modelID,relID,true);if(rel){var relatingPropertyDefinition=rel.RelatingPropertyDefinition;if(!relatingPropertyDefinition){continue;}var propertySetId=relatingPropertyDefinition.GlobalId.value;var props=relatingPropertyDefinition.HasProperties;if(props&&props.length>0){var propertySetType="Default";var propertySetName=relatingPropertyDefinition.Name.value;var properties=[];for(var _i592=0,len=props.length;_i592<len;_i592++){var prop=props[_i592];var _name8=prop.Name;var nominalValue=prop.NominalValue;if(_name8&&nominalValue){var property={name:_name8.value,type:nominalValue.type,value:nominalValue.value,valueType:nominalValue.valueType};if(prop.Description){property.description=prop.Description.value;}else if(nominalValue.description){property.description=nominalValue.description;}properties.push(property);}}var propertySet={id:propertySetId,type:propertySetType,name:propertySetName,properties:properties};ctx.metadata.propertySets.push(propertySet);ctx.stats.numPropertySets++;var relatedObjects=rel.RelatedObjects;if(!relatedObjects||relatedObjects.length===0){return;}for(var _i593=0,_len126=relatedObjects.length;_i593<_len126;_i593++){var relatedObject=relatedObjects[_i593];var metaObjectId=relatedObject.GlobalId.value;var metaObject=ctx.metaObjects[metaObjectId];if(metaObject){if(!metaObject.propertySetIds){metaObject.propertySetIds=[];}metaObject.propertySetIds.push(propertySetId);}}}}}}},{key:"_parseGeometry",value:function _parseGeometry(ctx){var _this2473=this;this._ifcAPI.StreamAllMeshes(ctx.modelID,function(flatMesh){// TODO: Can we do geometry reuse with web-ifc?
 var flatMeshExpressID=flatMesh.expressID;var placedGeometries=flatMesh.geometries;var meshIds=[];var properties=_this2473._ifcAPI.GetLine(ctx.modelID,flatMeshExpressID);var globalId=properties.GlobalId.value;if(ctx.loadMetadata){var metaObjectId=globalId;var metaObject=ctx.metaObjects[metaObjectId];if(ctx.includeTypes&&(!metaObject||!ctx.includeTypes[metaObject.type])){return;}if(ctx.excludeTypes&&(!metaObject||ctx.excludeTypes[metaObject.type])){return;}}var matrix=math.mat4();var origin=math.vec3();for(var j=0,lenj=placedGeometries.size();j<lenj;j++){var placedGeometry=placedGeometries.get(j);var geometry=_this2473._ifcAPI.GetGeometry(ctx.modelID,placedGeometry.geometryExpressID);var vertexData=_this2473._ifcAPI.GetVertexArray(geometry.GetVertexData(),geometry.GetVertexDataSize());var indices=_this2473._ifcAPI.GetIndexArray(geometry.GetIndexData(),geometry.GetIndexDataSize());// De-interleave vertex arrays
 var positions=new Float64Array(vertexData.length/2);var normals=new Float32Array(vertexData.length/2);for(var k=0,_l3=0,lenk=vertexData.length/6;k<lenk;k++,_l3+=3){positions[_l3+0]=vertexData[k*6+0];positions[_l3+1]=vertexData[k*6+1];positions[_l3+2]=vertexData[k*6+2];}matrix.set(placedGeometry.flatTransformation);math.transformPositions3(matrix,positions);var rtcNeeded=worldToRTCPositions(positions,positions,origin);if(!ctx.options.autoNormals){for(var _k2=0,_l4=0,_lenk=vertexData.length/6;_k2<_lenk;_k2++,_l4+=3){normals[_l4+0]=vertexData[_k2*6+3];normals[_l4+1]=vertexData[_k2*6+4];normals[_l4+2]=vertexData[_k2*6+5];}}ctx.stats.numGeometries++;ctx.stats.numVertices+=positions.length/3;ctx.stats.numTriangles+=indices.length/3;var meshId="mesh"+ctx.nextId++;ctx.sceneModel.createMesh({id:meshId,primitive:"triangles",// TODO
 origin:rtcNeeded?origin:null,positions:positions,normals:ctx.options.autoNormals?null:normals,indices:indices,color:[placedGeometry.color.x,placedGeometry.color.y,placedGeometry.color.z],opacity:placedGeometry.color.w});meshIds.push(meshId);}var entityId=ctx.options.globalizeObjectIds?math.globalizeObjectId(ctx.sceneModel.id,globalId):globalId;ctx.sceneModel.createEntity({id:entityId,meshIds:meshIds,isObject:true});ctx.stats.numObjects++;});}}]);return WebIFCLoaderPlugin;}(Plugin);/**