diff --git a/display.c b/display.c
index 2d72201..fdcd6d5 100644
--- a/display.c
+++ b/display.c
@@ -49,18 +49,6 @@ int mainLoop() {
 				break;
 			case SDL_KEYDOWN:
 				switch(event.key.keysym.sym) {
-					case SDLK_s:
-						yCamera-=moveDist;
-						break;
-					case SDLK_z:
-						yCamera+=moveDist;
-						break;
-					case SDLK_q:
-						xCamera-=moveDist;
-						break;
-					case SDLK_d:
-						xCamera+=moveDist;
-						break;
 					case SDLK_DOWN:
 						ySight -= moveDist;
 						break;
@@ -77,6 +65,16 @@ int mainLoop() {
 					default:
 						break;
 				}
+				break;
+				
+			case SDL_MOUSEMOTION:
+				printf("mouse motion\n");
+				xAngle = ((event.motion.x-windowWidth/2)*180/(windowWidth));
+				yAngle = (event.motion.y-windowHeight/2)*180/(windowHeight);
+				break;
+				
+			default:
+				break;
 		}
 
 		renderScene();
@@ -116,11 +114,16 @@ void renderScene() {
 	glMatrixMode(GL_MODELVIEW);
 	glLoadIdentity();
 	//gluLookAt(1024,512,1356,1024,512,0,0,1,0);
-	gluLookAt(xCamera,yCamera,zCamera,xCamera+xSight,yCamera+ySight,zCamera+zSight,0,1,0);
 	
 	//glClearColor(1,1,1,1); // pour un fond blanc
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) ;
 	
+	//gluLookAt(0,0,cameraDist, 0, 0, 0,0,1,0);
+	glTranslated(-xSight,-ySight,-(zSight+cameraDist));
+	glRotatef(-yAngle,1,0,0);
+	glRotatef(-xAngle,0,0,1);
+	
+	
 	drawAxes();
 	displayQTTree(qtn);
 	
diff --git a/display.h b/display.h
index 3103dda..c48ab86 100644
--- a/display.h
+++ b/display.h
@@ -19,14 +19,12 @@ int windowWidth = 1024;
 int windowHeight = 768;
 int nbVertex = 0;
 
-float xCamera = 100;
-float yCamera = -500;
-float zCamera = 3000;
+int cameraDist = 2000;
 
-int xSight = 100;
-int ySight = 500;
-int zSight = -3000;
+int xSight = 0;
+int ySight = 0;
+int zSight = 0;
 
 float xAngle = 0;
 float yAngle = 0;
-int moveDist = 64;
+int moveDist = 128;
diff --git a/square.c b/square.c
index 1759970..98bac23 100644
--- a/square.c
+++ b/square.c
@@ -245,7 +245,7 @@ void QT_enumerate(QTNode* first) {
 	for (n = first; n != NULL; n = n->nextNode) {
 		qtnode_print(n);
 		glBegin(GL_TRIANGLE_FAN);
-		setNormal(n->vertices[QT_NE],n->vertices[QT_NO],n->vertices[QT_SE]);
+		setNormal(n->vertices[QT_NE],n->vertices[QT_SO],n->vertices[QT_SE]);
 		// envoyer le vertex central
 		center = n->center;
 			glVertex3f(center->x,center->y,center->y);
@@ -280,6 +280,6 @@ void QT_enumerate(QTNode* first) {
 
 QTNode* QT_example() {
 	QTNode* q = QT_baseNode();
-	//QT_split(q);
+	QT_split(q);
 	return q;
 }