void display(void)
{
 
    //clear the screen
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
     glRotatef(Angle, 0.0, 0.0, 0.0);
 
    glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL); 
 
   	// Select the texture to use
    glBindTexture(GL_TEXTURE_2D, texture[0]);
 
 
	// Draw our texture
	glEnable(GL_TEXTURE_2D);
 
    //Nose
   drawTriangle();
 
   //Face
   circle (250, 250, 400);
 
 
   //Inner Eyes
   glLoadIdentity();
   circle(200, 280, 10);
   drawCircle1(-30, 280, 10);
 
   //Eye lids
   glLoadIdentity();
   glScalef(0.6,0.2,0);
   circle(530, 2400, 60);
   circle(-150, 2150, 60);
 
   //Arc for eyebrows
   drawArc(500, 500, -70, -140, 100);
   drawArc(270, 500, -70, -140, 100);
 
   //Mouth
   drawArc(380, 250, 110, -180, 180);
  // drawArc(380, 100, -100, -180, 180);
 
   drawLine();
 
   	glDisable(GL_TEXTURE_2D);
 
	// ----- Stop Drawing Stuff! ------
 
	glfwSwapBuffers(); // Swap the buffers to display the scene (so we don't have to watch it being drawn!)
 
}
 
An example of the circle function which is called in the display function is:
 
void circle(GLint x, GLint y, GLint radius)
{
	float angle;
 
    glTranslatef(300, 100, 0.0);
	glTranslatef(0.0,150.0, 1.0);
 
	glColor3f(0.0f, 1.0f, 0.0f);
	glBegin(GL_LINE_LOOP);
	for (int i = 0; i < 100; i++)
	{
		angle = i*2*PI/100;
		float X = x + (cos(angle) * radius);
		float Y = y + (sin(angle) * radius);
		glVertex2f(X, Y);
		//glVertex2f(x + (cos(angle) * radius), y + (sin(angle) * radius));
	}
	glEnd();
 
}

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear the screen and depth buffer
 
// Reset the matrix to identity
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
 
glTranslatef(0.0f, 0.0f, -40.0f); // Move things back into the screen
 
glBindTexture(GL_TEXTURE_2D, textureHandle); // Select the texture to use and bind to it
 
static float hsize = 15.0f; // Vertical size of the quad
static float vsize = 10.0f; // Vertical size of the quad
 
glEnable(GL_TEXTURE_2D);
 
// Draw our textured geometry (just a rectangle in this instance)
glBegin(GL_QUADS);                         // Anti-clockwise winding = front facing
	glTexCoord2f(0.0, 0.0);
	glVertex3f(-hsize, -vsize, 0.0f);  // Top left
	glTexCoord2f(0.0, 1.0);
	glVertex3f(-hsize,  vsize, 0.0f);  // Bottom left
	glTexCoord2f(1.0, 1.0);
	glVertex3f(hsize,   vsize, 0.0f);  // Bottom right
	glTexCoord2f(1.0, 0.0);
	glVertex3f(hsize,  -vsize, 0.0f);  // Top right
glEnd();
 
glDisable(GL_TEXTURE_2D);
 
// ----- Stop Drawing Stuff! ------
 
glfwSwapBuffers();