diff --git a/libs/objexporter.min.js b/libs/objexporter.min.js
index fe5b5289..24751dfc 100644
--- a/libs/objexporter.min.js
+++ b/libs/objexporter.min.js
@@ -1,5 +1,25 @@
-THREE.OBJExporter=function(){};
-THREE.OBJExporter.prototype={constructor:THREE.OBJExporter,parse:function(A){var f="",n=0,w=0,x=0,g=new THREE.Vector3,p=new THREE.Vector3,u=new THREE.Vector2,a,b,y,c,k,v=[];A.traverse(function(e){if(e instanceof THREE.Mesh){var r=0,t=0,d=0,h=e.geometry,z=new THREE.Matrix3;h instanceof THREE.Geometry&&(h=(new THREE.BufferGeometry).setFromObject(e));if(h instanceof THREE.BufferGeometry){var q=h.getAttribute("position"),l=h.getAttribute("normal"),m=h.getAttribute("uv");h=h.getIndex();f+="o "+e.name+
-"\n";e.material&&e.material.name&&(f+="usemtl "+e.material.name+"\n");if(void 0!==q)for(a=0,c=q.count;a<c;a++,r++)g.x=q.getX(a),g.y=q.getY(a),g.z=q.getZ(a),g.applyMatrix4(e.matrixWorld),f+="v "+g.x+" "+g.y+" "+g.z+"\n";if(void 0!==m)for(a=0,c=m.count;a<c;a++,d++)u.x=m.getX(a),u.y=m.getY(a),f+="vt "+u.x+" "+u.y+"\n";if(void 0!==l)for(z.getNormalMatrix(e.matrixWorld),a=0,c=l.count;a<c;a++,t++)p.x=l.getX(a),p.y=l.getY(a),p.z=l.getZ(a),p.applyMatrix3(z).normalize(),f+="vn "+p.x+" "+p.y+" "+p.z+"\n";if(null!==
-h)for(a=0,c=h.count;a<c;a+=3){for(k=0;3>k;k++)b=h.getX(a+k)+1,v[k]=n+b+(l||m?"/"+(m?w+b:"")+(l?"/"+(x+b):""):"");f+="f "+v.join(" ")+"\n"}else for(a=0,c=q.count;a<c;a+=3){for(k=0;3>k;k++)b=a+k+1,v[k]=n+b+(l||m?"/"+(m?w+b:"")+(l?"/"+(x+b):""):"");f+="f "+v.join(" ")+"\n"}}else console.warn("THREE.OBJExporter.parseMesh(): geometry type unsupported",h);n+=r;w+=d;x+=t}if(e instanceof THREE.Line){r=0;d=e.geometry;t=e.type;d instanceof THREE.Geometry&&(d=(new THREE.BufferGeometry).setFromObject(e));if(d instanceof
-THREE.BufferGeometry){d=d.getAttribute("position");f+="o "+e.name+"\n";if(void 0!==d)for(a=0,c=d.count;a<c;a++,r++)g.x=d.getX(a),g.y=d.getY(a),g.z=d.getZ(a),g.applyMatrix4(e.matrixWorld),f+="v "+g.x+" "+g.y+" "+g.z+"\n";if("Line"===t){f+="l ";b=1;for(c=d.count;b<=c;b++)f+=n+b+" ";f+="\n"}if("LineSegments"===t)for(b=1,y=b+1,c=d.count;b<c;b+=2,y=b+1)f+="l "+(n+b)+" "+(n+y)+"\n"}else console.warn("THREE.OBJExporter.parseLine(): geometry type unsupported",d);n+=r}});return f}};
+(function(){class OBJExporter{parse(object){let output='';let indexVertex=0;let indexVertexUvs=0;let indexNormals=0;const vertex=new THREE.Vector3();const color=new THREE.Color();const normal=new THREE.Vector3();const uv=new THREE.Vector2();const face=[];function parseMesh(mesh){let nbVertex=0;let nbNormals=0;let nbVertexUvs=0;const geometry=mesh.geometry;const normalMatrixWorld=new THREE.Matrix3();if(geometry.isBufferGeometry!==!0){throw new Error('THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.')}
+const vertices=geometry.getAttribute('position');const normals=geometry.getAttribute('normal');const uvs=geometry.getAttribute('uv');const indices=geometry.getIndex();output+='o '+mesh.name+'\n';if(mesh.material&&mesh.material.name){output+='usemtl '+mesh.material.name+'\n'}
+if(vertices!==undefined){for(let i=0,l=vertices.count;i<l;i ++,nbVertex ++){vertex.fromBufferAttribute(vertices,i);vertex.applyMatrix4(mesh.matrixWorld);output+='v '+vertex.x+' '+vertex.y+' '+vertex.z+'\n'}}
+if(uvs!==undefined){for(let i=0,l=uvs.count;i<l;i ++,nbVertexUvs ++){uv.fromBufferAttribute(uvs,i);output+='vt '+uv.x+' '+uv.y+'\n'}}
+if(normals!==undefined){normalMatrixWorld.getNormalMatrix(mesh.matrixWorld);for(let i=0,l=normals.count;i<l;i ++,nbNormals ++){normal.fromBufferAttribute(normals,i);normal.applyMatrix3(normalMatrixWorld).normalize();output+='vn '+normal.x+' '+normal.y+' '+normal.z+'\n'}}
+if(indices!==null){for(let i=0,l=indices.count;i<l;i+=3){for(let m=0;m<3;m ++){const j=indices.getX(i+m)+1;face[m]=indexVertex+j+(normals||uvs?'/'+(uvs?indexVertexUvs+j:'')+(normals?'/'+(indexNormals+j):''):'')}
+output+='f '+face.join(' ')+'\n'}}else{for(let i=0,l=vertices.count;i<l;i+=3){for(let m=0;m<3;m ++){const j=i+m+1;face[m]=indexVertex+j+(normals||uvs?'/'+(uvs?indexVertexUvs+j:'')+(normals?'/'+(indexNormals+j):''):'')}
+output+='f '+face.join(' ')+'\n'}}
+indexVertex+=nbVertex;indexVertexUvs+=nbVertexUvs;indexNormals+=nbNormals}
+function parseLine(line){let nbVertex=0;const geometry=line.geometry;const type=line.type;if(geometry.isBufferGeometry!==!0){throw new Error('THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.')}
+const vertices=geometry.getAttribute('position');output+='o '+line.name+'\n';if(vertices!==undefined){for(let i=0,l=vertices.count;i<l;i ++,nbVertex ++){vertex.fromBufferAttribute(vertices,i);vertex.applyMatrix4(line.matrixWorld);output+='v '+vertex.x+' '+vertex.y+' '+vertex.z+'\n'}}
+if(type==='Line'){output+='l ';for(let j=1,l=vertices.count;j<=l;j ++){output+=indexVertex+j+' '}
+output+='\n'}
+if(type==='LineSegments'){for(let j=1,k=j+1,l=vertices.count;j<l;j+=2,k=j+1){output+='l '+(indexVertex+j)+' '+(indexVertex+k)+'\n'}}
+indexVertex+=nbVertex}
+function parsePoints(points){let nbVertex=0;const geometry=points.geometry;if(geometry.isBufferGeometry!==!0){throw new Error('THREE.OBJExporter: Geometry is not of type THREE.BufferGeometry.')}
+const vertices=geometry.getAttribute('position');const colors=geometry.getAttribute('color');output+='o '+points.name+'\n';if(vertices!==undefined){for(let i=0,l=vertices.count;i<l;i ++,nbVertex ++){vertex.fromBufferAttribute(vertices,i);vertex.applyMatrix4(points.matrixWorld);output+='v '+vertex.x+' '+vertex.y+' '+vertex.z;if(colors!==undefined){color.fromBufferAttribute(colors,i).convertLinearToSRGB();output+=' '+color.r+' '+color.g+' '+color.b}
+output+='\n'}
+output+='p ';for(let j=1,l=vertices.count;j<=l;j ++){output+=indexVertex+j+' '}
+output+='\n'}
+indexVertex+=nbVertex}
+object.traverse(function(child){if(child.isMesh===!0){parseMesh(child)}
+if(child.isLine===!0){parseLine(child)}
+if(child.isPoints===!0){parsePoints(child)}});return output}}
+THREE.OBJExporter=OBJExporter})()
\ No newline at end of file
diff --git a/modules/ui/3d.js b/modules/ui/3d.js
index c8621a2d..3489e08d 100644
--- a/modules/ui/3d.js
+++ b/modules/ui/3d.js
@@ -704,7 +704,7 @@ window.ThreeD = (function () {
 
     return new Promise(resolve => {
       const script = document.createElement("script");
-      script.src = "libs/objexporter.min.js";
+      script.src = "libs/objexporter.min.js?v=1.89.35";
       document.head.append(script);
       script.onload = () => resolve(new THREE.OBJExporter());
       script.onerror = () => resolve(false);