void Affichage::init(int argc, char** argv)
{
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
 	glutInitWindowSize(640, 480);
	glutInitWindowPosition(100, 100);
    glutInit(&argc, argv);
    glutCreateWindow("BasicTraining");
    glutSetCursor(GLUT_CURSOR_NONE);

	glutDisplayFunc(Affichage::display);
	glutReshapeFunc(Affichage::reshape);
	glutSpecialFunc(Affichage::keyboard);	

    GLfloat light0_diffuse[] = {0.5, 0.5, 0.5, 1.0};
    GLfloat light0_specular[]= {0.0, 0.0, 0.0, 0.0};
    GLfloat light0_ambient[] = {0.3, 0.3, 0.3, 1.0};
    
    glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light0_specular);
    glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient);

    glClearColor(0, 0, 0, 0); //defini le noir comme couleur de vidage
    makeRasterFont();

    glEnable(GL_LIGHTING);//active la lumière
    glEnable(GL_LIGHT0);

    
    /*glEnable(GL_FOG);
    {
        GLfloat fogColor[4] = {0.0, 0.0, 0.0, 1.0};

        glFogi(GL_FOG_MODE, GL_EXP);
        glFogfv(GL_FOG_COLOR, fogColor);
        glFogf(GL_FOG_DENSITY, 0.25);
        glHint(GL_FOG_HINT, GL_DONT_CARE);
        glFogf(GL_FOG_START, 1.0);
        glFogf(GL_FOG_END, 20.0);
    }*/

    glEnable(GL_COLOR_MATERIAL); //active la coloration de surface
    glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE); //definie quelle surface est coloriée

    glEnable(GL_DEPTH_TEST); //active le z-buffer
   
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); //corrige la perspective des textures
}