GLfloat materialAmbient[] = {0.2, 0.2, 0.2, 1.0};
GLfloat materialDiffuse[] = {1.0, 0.8, 0.0, 1.0};
GLfloat materialSpecular[] = {1.0, 1.0, 1.0, 1.0};
GLfloat materialAmbient[] = {0.2, 0.2, 0.2, 1.0};
GLfloat materialDiffuse[] = {1.0, 0.8, 0.0, 1.0};
GLfloat materialSpecular[] = {1.0, 1.0, 1.0, 1.0};