diff --git a/controllers/prototype/index.js b/controllers/prototype/index.js
index b0c022a..f09e980 100644
--- a/controllers/prototype/index.js
+++ b/controllers/prototype/index.js
@@ -1,16 +1,16 @@
 var pg = require('pg');
 var pgc = require('../../private.js');
 
-var createNewId = function() {
-    var value;
+var createNewId = function(req, callback) {
     pg.connect(pgc.url, function(err, client, release) {
         client.query(
             "INSERT INTO users(name) VALUES('anonymous'); SELECT currval('users_id_seq');",
             [],
             function(err, result) {
-                value = result.rows[0].currval;
+                req.session.user_id = result.rows[0].currval;
+                req.session.save();
+                callback();
                 release();
-                return value;
             }
         );
     });
@@ -25,13 +25,16 @@ module.exports.index = function(req, res) {
 }
 
 module.exports.arrows = function(req, res) {
-    // req.session.user_id = createNewId();
-    res.setHeader('Content-Type', 'text/html');
+    createNewId(req, function() {
 
-    res.locals.cameraStyle = 'arrows';
+        res.setHeader('Content-Type', 'text/html');
+
+        res.locals.cameraStyle = 'arrows';
+
+        res.render('prototype.jade', res.locals, function(err, result) {
+            res.send(result);
+        });
 
-    res.render('prototype.jade', res.locals, function(err, result) {
-        res.send(result);
     });
 }
 
diff --git a/package.json b/package.json
index bae38a2..f9d8556 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,8 @@
         "pg": "4.3.0",
         "body-parser": "1.12.4",
         "express-session": "1.11.2",
-        "cookie-parser": "1.3.4"
+        "cookie-parser": "1.3.4",
+        "cookie-session": "1.1.0"
     },
     "repository": {
         "type": "git",
diff --git a/server.js b/server.js
index 62fcb65..6d80a7f 100644
--- a/server.js
+++ b/server.js
@@ -8,17 +8,22 @@ var secret = require('./private');
 
 var app = express();
 var bodyParser = require('body-parser');
-var session = require('express-session');
+var session = require('cookie-session');
 var cookieParser = require('cookie-parser');
 var urls = require('./urls');
 
 app.set('view engine', 'jade');
+app.set('trust proxy', 1);
 
-app.use(cookieParser());
+app.use(cookieParser(secret.secret));
 app.use(session({
-    saveUninitialized: true,
-    resave: true,
-    secret: secret.secret
+    // express-session
+    // saveUninitialized: true,
+    // resave: true,
+    // secret: secret.secret
+
+    // cookie-session
+    keys: ['key1', 'key2']
 }));
 
 app.use(bodyParser.text());
@@ -32,13 +37,23 @@ app.use(function(req, res, next) {
     next();
 });
 
+app.use(function(req, res, next) {
+    if (req.cookies.alreadyCame) {
+        res.locals.alertCookie = false;
+    } else {
+        res.locals.alertCookie = true;
+        res.cookie('alreadyCame', true);
+    }
+    next();
+});
+
 // Load controllers
 require('./lib/boot')(app, { verbose: !module.parent });
 
 app.use('/static', express.static('static'));
 
 app.post('/post', function(req, res) {
-    var user_id = 1;
+    var user_id = req.session.user_id;
     var arrow_id = req.body.arrow_id;
 
     pg.connect(secret.url, function(err, client, release) {
@@ -52,7 +67,7 @@ app.post('/post', function(req, res) {
     });
 
     res.setHeader('Content-Type', 'text/html');
-    res.send("Hello");
+    res.send("user_id = " + user_id);
 });
 
 // When error raised
@@ -86,5 +101,4 @@ if ( app.get('env') === 'development' ) {
     server_ip_address = process.env.OPENSHIFT_NODEJS_IP || '127.0.0.1';
 }
 
-console.log("Starting server on " + server_ip_address + ":" + server_port);
 app.listen(server_port, server_ip_address);
diff --git a/sql/backup.pgsql b/sql/backup.pgsql
index 89c17b6..354c123 100644
--- a/sql/backup.pgsql
+++ b/sql/backup.pgsql
@@ -6,9 +6,6 @@ CREATE TABLE users (
     name char(50)
 );
 
--- Create dummy user
-INSERT INTO users(name) VALUES('Thomas');
-
 CREATE TABLE arrowclicked(
     id SERIAL PRIMARY KEY,
     user_id SERIAL REFERENCES users (id),
diff --git a/static/js/three/OBJLoader.js b/static/js/three/OBJLoader.js
index d774d64..f66badd 100644
--- a/static/js/three/OBJLoader.js
+++ b/static/js/three/OBJLoader.js
@@ -22,139 +22,156 @@ THREE.OBJLoader.prototype = {
 
 			onLoad( scope.parse( text ) );
 
-		} );
+		}, onProgress, onError );
 
 	},
 
 	parse: function ( text ) {
 
-		function vector( x, y, z ) {
+		console.time( 'OBJLoader' );
 
-			return new THREE.Vector3( parseFloat( x ), parseFloat( y ), parseFloat( z ) );
+		var object, objects = [];
+		var geometry, material;
+
+		function parseVertexIndex( value ) {
+
+			var index = parseInt( value );
+
+			return ( index >= 0 ? index - 1 : index + vertices.length / 3 ) * 3;
 
 		}
 
-		function uv( u, v ) {
+		function parseNormalIndex( value ) {
 
-			return new THREE.Vector2( parseFloat( u ), parseFloat( v ) );
+			var index = parseInt( value );
+
+			return ( index >= 0 ? index - 1 : index + normals.length / 3 ) * 3;
 
 		}
 
-		function face3( a, b, c, normals ) {
+		function parseUVIndex( value ) {
 
-			return new THREE.Face3( a, b, c, normals );
+			var index = parseInt( value );
 
-		}
-		
-		var object = new THREE.Object3D();
-		var geometry, material, mesh;
-
-		function parseVertexIndex( index ) {
-
-			index = parseInt( index );
-
-			return index >= 0 ? index - 1 : index + vertices.length;
+			return ( index >= 0 ? index - 1 : index + uvs.length / 2 ) * 2;
 
 		}
 
-		function parseNormalIndex( index ) {
+		function addVertex( a, b, c ) {
 
-			index = parseInt( index );
-
-			return index >= 0 ? index - 1 : index + normals.length;
+			geometry.vertices.push(
+				vertices[ a ], vertices[ a + 1 ], vertices[ a + 2 ],
+				vertices[ b ], vertices[ b + 1 ], vertices[ b + 2 ],
+				vertices[ c ], vertices[ c + 1 ], vertices[ c + 2 ]
+			);
 
 		}
 
-		function parseUVIndex( index ) {
+		function addNormal( a, b, c ) {
 
-			index = parseInt( index );
-
-			return index >= 0 ? index - 1 : index + uvs.length;
+			geometry.normals.push(
+				normals[ a ], normals[ a + 1 ], normals[ a + 2 ],
+				normals[ b ], normals[ b + 1 ], normals[ b + 2 ],
+				normals[ c ], normals[ c + 1 ], normals[ c + 2 ]
+			);
 
 		}
-		
-		function add_face( a, b, c, normals_inds ) {
 
-			if ( normals_inds === undefined ) {
+		function addUV( a, b, c ) {
 
-				geometry.faces.push( face3(
-					vertices[ parseVertexIndex( a ) ] - 1,
-					vertices[ parseVertexIndex( b ) ] - 1,
-					vertices[ parseVertexIndex( c ) ] - 1
-				) );
+			geometry.uvs.push(
+				uvs[ a ], uvs[ a + 1 ],
+				uvs[ b ], uvs[ b + 1 ],
+				uvs[ c ], uvs[ c + 1 ]
+			);
+
+		}
+
+		function addFace( a, b, c, d,  ua, ub, uc, ud, na, nb, nc, nd ) {
+
+			var ia = parseVertexIndex( a );
+			var ib = parseVertexIndex( b );
+			var ic = parseVertexIndex( c );
+			var id;
+
+			if ( d === undefined ) {
+
+				addVertex( ia, ib, ic );
 
 			} else {
 
-				geometry.faces.push( face3(
-					vertices[ parseVertexIndex( a ) ] - 1,
-					vertices[ parseVertexIndex( b ) ] - 1,
-					vertices[ parseVertexIndex( c ) ] - 1,
-					[
-						normals[ parseNormalIndex( normals_inds[ 0 ] ) ].clone(),
-						normals[ parseNormalIndex( normals_inds[ 1 ] ) ].clone(),
-						normals[ parseNormalIndex( normals_inds[ 2 ] ) ].clone()
-					]
-				) );
+				id = parseVertexIndex( d );
+
+				addVertex( ia, ib, id );
+				addVertex( ib, ic, id );
 
 			}
 
-		}
-		
-		function add_uvs( a, b, c ) {
-	  
-			geometry.faceVertexUvs[ 0 ].push( [
-				uvs[ parseUVIndex( a ) ].clone(),
-				uvs[ parseUVIndex( b ) ].clone(),
-				uvs[ parseUVIndex( c ) ].clone()
-			] );
+			if ( ua !== undefined ) {
 
-		}
-		
-		function handle_face_line(faces, uvs, normals_inds) {
+				ia = parseUVIndex( ua );
+				ib = parseUVIndex( ub );
+				ic = parseUVIndex( uc );
 
-			if ( faces[ 3 ] === undefined ) {
-				
-				add_face( faces[ 0 ], faces[ 1 ], faces[ 2 ], normals_inds );
-				
-				if ( uvs !== undefined && uvs.length > 0 ) {
+				if ( d === undefined ) {
 
-					add_uvs( uvs[ 0 ], uvs[ 1 ], uvs[ 2 ] );
-
-				}
-
-			} else {
-				
-				if ( normals_inds !== undefined && normals_inds.length > 0 ) {
-
-					add_face( faces[ 0 ], faces[ 1 ], faces[ 3 ], [ normals_inds[ 0 ], normals_inds[ 1 ], normals_inds[ 3 ] ] );
-					add_face( faces[ 1 ], faces[ 2 ], faces[ 3 ], [ normals_inds[ 1 ], normals_inds[ 2 ], normals_inds[ 3 ] ] );
+					addUV( ia, ib, ic );
 
 				} else {
 
-					add_face( faces[ 0 ], faces[ 1 ], faces[ 3 ] );
-					add_face( faces[ 1 ], faces[ 2 ], faces[ 3 ] );
+					id = parseUVIndex( ud );
 
-				}
-				
-				if ( uvs !== undefined && uvs.length > 0 ) {
-
-					add_uvs( uvs[ 0 ], uvs[ 1 ], uvs[ 3 ] );
-					add_uvs( uvs[ 1 ], uvs[ 2 ], uvs[ 3 ] );
+					addUV( ia, ib, id );
+					addUV( ib, ic, id );
 
 				}
 
 			}
-			
+
+			if ( na !== undefined ) {
+
+				ia = parseNormalIndex( na );
+				ib = parseNormalIndex( nb );
+				ic = parseNormalIndex( nc );
+
+				if ( d === undefined ) {
+
+					addNormal( ia, ib, ic );
+
+				} else {
+
+					id = parseNormalIndex( nd );
+
+					addNormal( ia, ib, id );
+					addNormal( ib, ic, id );
+
+				}
+
+			}
+
 		}
 
 		// create mesh if no objects in text
 
 		if ( /^o /gm.test( text ) === false ) {
 
-			geometry = new THREE.Geometry();
-			material = new THREE.MeshLambertMaterial();
-			mesh = new THREE.Mesh( geometry, material );
-			object.add( mesh );
+			geometry = {
+				vertices: [],
+				normals: [],
+				uvs: []
+			};
+
+			material = {
+				name: ''
+			};
+
+			object = {
+				name: '',
+				geometry: geometry,
+				material: material
+			};
+
+			objects.push( object );
 
 		}
 
@@ -164,15 +181,15 @@ THREE.OBJLoader.prototype = {
 
 		// v float float float
 
-		var vertex_pattern = /v( +[\d|\.|\+|\-|e]+)( +[\d|\.|\+|\-|e]+)( +[\d|\.|\+|\-|e]+)/;
+		var vertex_pattern = /v( +[\d|\.|\+|\-|e|E]+)( +[\d|\.|\+|\-|e|E]+)( +[\d|\.|\+|\-|e|E]+)/;
 
 		// vn float float float
 
-		var normal_pattern = /vn( +[\d|\.|\+|\-|e]+)( +[\d|\.|\+|\-|e]+)( +[\d|\.|\+|\-|e]+)/;
+		var normal_pattern = /vn( +[\d|\.|\+|\-|e|E]+)( +[\d|\.|\+|\-|e|E]+)( +[\d|\.|\+|\-|e|E]+)/;
 
 		// vt float float
 
-		var uv_pattern = /vt( +[\d|\.|\+|\-|e]+)( +[\d|\.|\+|\-|e]+)/;
+		var uv_pattern = /vt( +[\d|\.|\+|\-|e|E]+)( +[\d|\.|\+|\-|e|E]+)/;
 
 		// f vertex vertex vertex ...
 
@@ -186,13 +203,11 @@ THREE.OBJLoader.prototype = {
 
 		var face_pattern3 = /f( +(-?\d+)\/(-?\d+)\/(-?\d+))( +(-?\d+)\/(-?\d+)\/(-?\d+))( +(-?\d+)\/(-?\d+)\/(-?\d+))( +(-?\d+)\/(-?\d+)\/(-?\d+))?/;
 
-		// f vertex//normal vertex//normal vertex//normal ... 
+		// f vertex//normal vertex//normal vertex//normal ...
 
 		var face_pattern4 = /f( +(-?\d+)\/\/(-?\d+))( +(-?\d+)\/\/(-?\d+))( +(-?\d+)\/\/(-?\d+))( +(-?\d+)\/\/(-?\d+))?/
 
-		// fixes
-
-		text = text.replace( /\\\r?\n/g, '' ); // handles line continuations \
+		//
 
 		var lines = text.split( '\n' );
 
@@ -211,12 +226,10 @@ THREE.OBJLoader.prototype = {
 
 				// ["v 1.0 2.0 3.0", "1.0", "2.0", "3.0"]
 
-				vertices.push( 
-					geometry.vertices.push(
-						vector(
-							result[ 1 ], result[ 2 ], result[ 3 ]
-						)
-					)
+				vertices.push(
+					parseFloat( result[ 1 ] ),
+					parseFloat( result[ 2 ] ),
+					parseFloat( result[ 3 ] )
 				);
 
 			} else if ( ( result = normal_pattern.exec( line ) ) !== null ) {
@@ -224,9 +237,9 @@ THREE.OBJLoader.prototype = {
 				// ["vn 1.0 2.0 3.0", "1.0", "2.0", "3.0"]
 
 				normals.push(
-					vector(
-						result[ 1 ], result[ 2 ], result[ 3 ]
-					)
+					parseFloat( result[ 1 ] ),
+					parseFloat( result[ 2 ] ),
+					parseFloat( result[ 3 ] )
 				);
 
 			} else if ( ( result = uv_pattern.exec( line ) ) !== null ) {
@@ -234,56 +247,66 @@ THREE.OBJLoader.prototype = {
 				// ["vt 0.1 0.2", "0.1", "0.2"]
 
 				uvs.push(
-					uv(
-						result[ 1 ], result[ 2 ]
-					)
+					parseFloat( result[ 1 ] ),
+					parseFloat( result[ 2 ] )
 				);
 
 			} else if ( ( result = face_pattern1.exec( line ) ) !== null ) {
 
 				// ["f 1 2 3", "1", "2", "3", undefined]
 
-				handle_face_line(
-					[ result[ 1 ], result[ 2 ], result[ 3 ], result[ 4 ] ]
+				addFace(
+					result[ 1 ], result[ 2 ], result[ 3 ], result[ 4 ]
 				);
 
 			} else if ( ( result = face_pattern2.exec( line ) ) !== null ) {
 
 				// ["f 1/1 2/2 3/3", " 1/1", "1", "1", " 2/2", "2", "2", " 3/3", "3", "3", undefined, undefined, undefined]
-				
-				handle_face_line(
-					[ result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ] ], //faces
-					[ result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ] ] //uv
+
+				addFace(
+					result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ],
+					result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ]
 				);
 
 			} else if ( ( result = face_pattern3.exec( line ) ) !== null ) {
 
 				// ["f 1/1/1 2/2/2 3/3/3", " 1/1/1", "1", "1", "1", " 2/2/2", "2", "2", "2", " 3/3/3", "3", "3", "3", undefined, undefined, undefined, undefined]
 
-				handle_face_line(
-					[ result[ 2 ], result[ 6 ], result[ 10 ], result[ 14 ] ], //faces
-					[ result[ 3 ], result[ 7 ], result[ 11 ], result[ 15 ] ], //uv
-					[ result[ 4 ], result[ 8 ], result[ 12 ], result[ 16 ] ] //normal
+				addFace(
+					result[ 2 ], result[ 6 ], result[ 10 ], result[ 14 ],
+					result[ 3 ], result[ 7 ], result[ 11 ], result[ 15 ],
+					result[ 4 ], result[ 8 ], result[ 12 ], result[ 16 ]
 				);
 
 			} else if ( ( result = face_pattern4.exec( line ) ) !== null ) {
 
 				// ["f 1//1 2//2 3//3", " 1//1", "1", "1", " 2//2", "2", "2", " 3//3", "3", "3", undefined, undefined, undefined]
 
-				handle_face_line(
-					[ result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ] ], //faces
-					[ ], //uv
-					[ result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ] ] //normal
+				addFace(
+					result[ 2 ], result[ 5 ], result[ 8 ], result[ 11 ],
+					undefined, undefined, undefined, undefined,
+					result[ 3 ], result[ 6 ], result[ 9 ], result[ 12 ]
 				);
 
 			} else if ( /^o /.test( line ) ) {
 
-				geometry = new THREE.Geometry();
-				material = new THREE.MeshLambertMaterial();
+				geometry = {
+					vertices: [],
+					normals: [],
+					uvs: []
+				};
 
-				mesh = new THREE.Mesh( geometry, material );
-				mesh.name = line.substring( 2 ).trim();
-				object.add( mesh );
+				material = {
+					name: ''
+				};
+
+				object = {
+					name: line.substring( 2 ).trim(),
+					geometry: geometry,
+					material: material
+				};
+
+				objects.push( object )
 
 			} else if ( /^g /.test( line ) ) {
 
@@ -311,18 +334,38 @@ THREE.OBJLoader.prototype = {
 
 		}
 
-		var children = object.children;
+		var container = new THREE.Object3D();
 
-		for ( var i = 0, l = children.length; i < l; i ++ ) {
+		for ( var i = 0, l = objects.length; i < l; i ++ ) {
 
-			var geometry = children[ i ].geometry;
+			object = objects[ i ];
+			geometry = object.geometry;
 
-			geometry.computeFaceNormals();
-			geometry.computeBoundingSphere();
+			var buffergeometry = new THREE.BufferGeometry();
+
+			buffergeometry.addAttribute( 'position', new THREE.BufferAttribute( new Float32Array( geometry.vertices ), 3 ) );
+
+			if ( geometry.normals.length > 0 ) {
+				buffergeometry.addAttribute( 'normal', new THREE.BufferAttribute( new Float32Array( geometry.normals ), 3 ) );
+			}
+
+			if ( geometry.uvs.length > 0 ) {
+				buffergeometry.addAttribute( 'uv', new THREE.BufferAttribute( new Float32Array( geometry.uvs ), 2 ) );
+			}
+
+			material = new THREE.MeshLambertMaterial();
+			material.name = object.material.name;
+
+			var mesh = new THREE.Mesh( buffergeometry, material );
+			mesh.name = object.name;
+
+			container.add( mesh );
 
 		}
-		
-		return object;
+
+		console.timeEnd( 'OBJLoader' );
+
+		return container;
 
 	}
 
diff --git a/views/main.jade b/views/main.jade
index ac686f2..6008cf1 100644
--- a/views/main.jade
+++ b/views/main.jade
@@ -55,8 +55,14 @@ html(lang='fr')
                                     span.glyphicon.glyphicon-envelope(aria-hidden=true)
                                     span(style={'margin-left':'5px'}) Contact
 
-
         section#main-section.container
+            if alertCookie
+                .alert.alert-warning.alert-dismissible(role="alert", style={'margin-top':'20px'})
+                    button.close(type="button", data-dismiss="alert", aria-label="Close")
+                        span(aria-hidden="true")
+                            &times;
+                    <strong>Warning</strong> : this website use cookies !
+
             block content
 
         script(src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js")