diff --git a/.gitignore b/.gitignore
index 24c79b9..9c21851 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,5 @@
 build*
 *.user
+data/*.jpg
+data/*.mtl
+data/*.obj
diff --git a/src/engine.cpp b/src/engine.cpp
index fc4a5b2..fbe70f4 100644
--- a/src/engine.cpp
+++ b/src/engine.cpp
@@ -106,7 +106,7 @@ void Engine::setScene(SceneTree *scene)
     m_scene = scene;
     m_renderer->setScene(m_scene);
     m_renderer->resizeGL(m_window->getSize().x, m_window->getSize().y);
-//    scene->addObject(scene->getRootObject(), m_sparrowshell);
+    scene->addObject(scene->getRootObject(), m_sparrowshell);
 }
 
 void Engine::outputShell(std::string str)
diff --git a/src/sparrowshell.cpp b/src/sparrowshell.cpp
index 36ebbb1..ffce338 100644
--- a/src/sparrowshell.cpp
+++ b/src/sparrowshell.cpp
@@ -5,10 +5,12 @@
 #include "scenetree.h"
 #include "mesh.h"
 #include "phongmaterial.h"
+#include "tools/utils.h"
 
 const unsigned int SparrowShell::BUFFER_MAX_LENGTH = 50;
 const unsigned int SparrowShell::BUFFER_DISPLAYED_NUMBER = 10;
 const unsigned int SparrowShell::SCROLLBAR_PIXEL_WIDTH = 10;
+bool test = true;
 
 SparrowShell::SparrowShell(sf::Window* window, Input* input): m_window(window),m_input(input),m_position(glm::ivec2(0,0))
 {
@@ -17,7 +19,7 @@ SparrowShell::SparrowShell(sf::Window* window, Input* input): m_window(window),m
     Mesh* mesh = new Mesh();
     mesh->addRectangle2D(m_position,m_dimension);
     PhongMaterial *mat = new PhongMaterial();
-    mat->diffuse = glm::vec3(0,0.5,0.5);
+    mat->diffuse = glm::vec3(0.1,0.1,0.1);
     mesh->setMaterial(mat);
     mesh->setDepth(-0.5);
     mesh->initGL();
@@ -31,6 +33,8 @@ void SparrowShell::out(std::string s)
     if (m_buffer.size() == BUFFER_MAX_LENGTH)
         m_buffer.pop_back();
     m_buffer.push_front(s);
+    if (m_buffer.size() > BUFFER_DISPLAYED_NUMBER)
+        m_resizeScrollBar = true;
 }
 
 void SparrowShell::scrollUp(){
@@ -55,13 +59,14 @@ SparrowShell::ScrollBar::ScrollBar(SparrowShell* shell):m_shell(shell){
     m_position = glm::ivec2(m_shell->m_dimension.x - SparrowShell::SCROLLBAR_PIXEL_WIDTH,0);
     m_dimension = glm::ivec2(SparrowShell::SCROLLBAR_PIXEL_WIDTH,m_shell->m_dimension.y);
     Mesh* mesh = new Mesh();
-    mesh->addRectangle2D(m_position,m_dimension);
+    mesh->addRectangle2D(glm::vec2(0),m_dimension);
     PhongMaterial *mat = new PhongMaterial();
-    mat->diffuse = glm::vec3(1,0,0);
+    mat->diffuse = glm::vec3(0,0,0.5);
     mesh->setDepth(-0.4);
     mesh->setMaterial(mat);
     mesh->initGL();
     m_mesh = new MeshNode(mesh);
+    utils::setPosition2D(m_mesh,m_position);
     m_shell->addChild(m_mesh);
 }
 
@@ -69,10 +74,14 @@ void SparrowShell::ScrollBar::update(){
     m_position.y = m_shell->m_position.y;
     m_dimension.y = m_shell->m_dimension.y;
 
-    if (m_shell->m_buffer.size() > BUFFER_DISPLAYED_NUMBER){
-        float cran = ((float)m_shell->m_dimension.y/(float)m_shell->m_buffer.size());
-        int indexCursor = m_shell->m_buffer.size()-(m_shell->m_index+SCROLLBAR_PIXEL_WIDTH);
-        m_position.y += (int)(cran * indexCursor);
-        m_dimension.y = (int)(cran * BUFFER_DISPLAYED_NUMBER);
+    float cran = ((float)m_shell->m_dimension.y/(float)m_shell->m_buffer.size());
+    int indexCursor = m_shell->m_buffer.size()-(m_shell->m_index+BUFFER_DISPLAYED_NUMBER);
+    glm::ivec2 new_pos((int)m_position.x, (int) cran * indexCursor);
+
+    if (m_shell->m_resizeScrollBar){
+        glm::ivec2 new_dim(m_dimension.x,(int)(cran * BUFFER_DISPLAYED_NUMBER));
+        utils::resize2D(m_mesh,m_dimension,new_dim);
+        m_shell->m_resizeScrollBar = false;
     }
+    utils::setPosition2D(m_mesh,new_pos);
 }
diff --git a/src/sparrowshell.h b/src/sparrowshell.h
index 64ac46a..414d03e 100644
--- a/src/sparrowshell.h
+++ b/src/sparrowshell.h
@@ -41,7 +41,7 @@ private:
     sf::Window* m_window;
     Input* m_input;
     int m_index = 0;
-
+    bool m_resizeScrollBar = false;
     glm::ivec2 m_position;
     glm::ivec2 m_dimension;
 
diff --git a/src/test/main.cpp b/src/test/main.cpp
index b0d0af4..b1b725a 100644
--- a/src/test/main.cpp
+++ b/src/test/main.cpp
@@ -14,6 +14,7 @@
 #include <tools/loader.h>
 
 #include <tools/font.h>
+#include <tools/utils.h>
 
 #include <sparrowshell.h>
 
@@ -27,14 +28,16 @@ int main(){
 
     /* Exemple creation mesh 2D
      *
-
+*/
     Mesh* mesh = new Mesh();
-    mesh->addRectangle2D(50,50,100,100);
+    mesh->addRectangle2D(180, 400,5,5);
     PhongMaterial *mat = new PhongMaterial();
     mat->diffuse = glm::vec3(1, 0.5, 0);
     mesh->setMaterial(mat);
+    mesh->setDepth(1);
     mesh->initGL();
-*/
+    scene.addObject(scene.getRootObject(),new MeshNode(mesh));
+/* */
 
 /* Exemple ajout d'un objet a la scene
  *
@@ -54,11 +57,14 @@ int main(){
     MeshNode* mnode/* = new MeshNode(fonte_des_neiges->getTextMesh("Hello World!"));
     scene.addObject(scene.getRootObject(),mnode)*/;
     
+
     mnode = new MeshNode(fonte_des_neiges->getTextMesh("WOW", glm::vec3(0.5, 0.7, 0.2)));
-    mnode->setTransform(glm::rotate(glm::translate(glm::mat4(), glm::vec3(70, 30, 0)), 0.4f, glm::vec3(0, 0, 1)));
+//    mnode->setTransform(glm::rotate(glm::translate(glm::mat4(), glm::vec3(70, 30, 0)), 0.4f, glm::vec3(0, 0, 1)));
+    utils::setPosition2D(mnode,glm::vec2(180, 400));
     scene.addObject(scene.getRootObject(),mnode);
+
     
-    mnode = new MeshNode(fonte_des_neiges->getTextMesh("Such Text", glm::vec3(0.7, 0.4, 0.2)));
+/*    mnode = new MeshNode(fonte_des_neiges->getTextMesh("Such Text", glm::vec3(0.7, 0.4, 0.2)));
     mnode->setTransform(glm::rotate(glm::translate(glm::mat4(), glm::vec3(200, 170, 0)), -0.5f, glm::vec3(0, 0, 1)));
     scene.addObject(scene.getRootObject(),mnode);
     
@@ -70,6 +76,13 @@ int main(){
     mnode->setTransform(glm::translate(glm::mat4(), glm::vec3(400, 250, 0)));
     mnode->m_movement = glm::translate(glm::rotate(glm::translate(glm::mat4(), glm::vec3(580, 280, 0)), 0.03f, glm::vec3(0, 0, 1)), glm::vec3(-580, -280, 0));
     scene.addObject(scene.getRootObject(),mnode);
+*/
+    engine.outputShell("Hello World!");
+    engine.outputShell("Starting test :");
+
+    for(int i = 0; i < 15; i++){
+        engine.outputShell(std::to_string(i));
+    }
 
     engine.setScene(&scene);
     engine.start();
diff --git a/src/tools/utils.cpp b/src/tools/utils.cpp
index d777a7f..8bfc75f 100644
--- a/src/tools/utils.cpp
+++ b/src/tools/utils.cpp
@@ -1,4 +1,5 @@
 #include "utils.h"
+#include "scenetree.h"
 
 std::vector<std::string> utils::split(const std::string &line, char sep){
     std::vector<std::string> tokens;
@@ -10,3 +11,20 @@ std::vector<std::string> utils::split(const std::string &line, char sep){
     tokens.push_back(line.substr(start));
     return tokens;
 }
+
+void utils::setPosition2D(MeshNode *mnode, glm::vec2 pos){
+    glm::mat4 tr = mnode->getTransform();
+    glm::vec3 vpos(pos.x,pos.y,0);
+    tr = glm::translate(tr,vpos - glm::vec3(tr[3]));
+    mnode->setTransform(tr);
+}
+
+void utils::resize2D(MeshNode *mnode, glm::vec2 dim, glm::vec2 new_dim){
+    glm::mat4 tr = mnode->getTransform();
+    glm::vec3 pos(tr[3]);
+    glm::vec2 ratio = new_dim / dim;
+    tr = glm::scale(tr, glm::vec3(1,ratio.y,1));
+    glm::vec3 new_pos(tr[3]);
+    tr = glm::translate(tr,pos-new_pos);
+    mnode->setTransform(tr);
+}
diff --git a/src/tools/utils.h b/src/tools/utils.h
index 7a2454c..eefd153 100644
--- a/src/tools/utils.h
+++ b/src/tools/utils.h
@@ -3,10 +3,15 @@
 
 #include <vector>
 #include <string>
+#include <glm/glm.hpp>
+
+class MeshNode;
 
 namespace utils
 {
 std::vector<std::string> split(const std::string &line, char sep);
+void setPosition2D(MeshNode*, glm::vec2);
+void resize2D(MeshNode*, glm::vec2, glm::vec2);
 }
 
 #endif // UTILS_H