diff --git a/src/engine/Engine.java b/src/engine/Engine.java
index 05fc9c8..44d8483 100644
--- a/src/engine/Engine.java
+++ b/src/engine/Engine.java
@@ -80,11 +80,12 @@ public class Engine {
         glfwShowWindow(getWindow());
         GL.createCapabilities();
 
+        correctViewport(this.width, this.height);
+
         glfwSetFramebufferSizeCallback(getWindow(), resizeWindow);
 
         glEnable(GL_DEPTH_TEST); // Z-Buffer plus z est grand plus l'objet est proche de la camera limite à 100.0f au dela l'objet disparait
 
-        glScissor(0,0,this.width,this.height); // La zone de dessin du background
         glEnable(GL_BLEND); // Transparence
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
@@ -131,6 +132,23 @@ public class Engine {
         objectsGl.remove(obj);
     }
 
+    public static void correctViewport(int width, int height){
+        int heightViewport, widthViewport, x, y;
+        if (width >= height * 4.0f/3.0f){
+            heightViewport = height;
+            widthViewport = (int) (height * 4.0f/3.0f);
+            y = 0;
+            x = (width - widthViewport)/2;
+        } else {
+            widthViewport = width;
+            heightViewport = (int) (width * 3.0f/4.0f);
+            y = (height - heightViewport)/2;
+            x = 0;
+        }
+        glScissor(x, y, widthViewport, heightViewport);
+        glViewport(x, y, widthViewport, heightViewport);
+    }
+
     public boolean isRunning() {
         return running;
     }
@@ -158,21 +176,7 @@ public class Engine {
     private static final GLFWFramebufferSizeCallback resizeWindow = new GLFWFramebufferSizeCallback() {
         @Override
         public void invoke(long window, int width, int height) {
-            int heightViewport, widthViewport, x, y;
-            if (width >= height * 4.0f/3.0f){
-                heightViewport = height;
-                widthViewport = (int) (height * 4.0f/3.0f);
-                y = 0;
-                x = (width - widthViewport)/2;
-            } else {
-                widthViewport = width;
-                heightViewport = (int) (width * 3.0f/4.0f);
-                y = (height - heightViewport)/2;
-                x = 0;
-            }
-            glScissor(x, y, widthViewport, heightViewport);
-            glViewport(x, y, widthViewport, heightViewport);
-
+            correctViewport(width, height);
         }
     };