glClearColor(0.f,0.f,1.f,1.f);
	glClear(GL_COLOR_BUFFER_BIT);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	glColor3f(1.f, 1.f, 1.f);

	glBegin(GL_TRIANGLES);//start drawing triangles
	glColor3f(0.f,0.f,0.f);
      glVertex3f(-1.0f,-0.25f,0.0f);//triangle one first vertex
      glVertex3f(-0.5f,-0.25f,0.0f);//triangle one second vertex
      glVertex3f(-0.75f,0.25f,0.0f);//triangle one third vertex
    glEnd();//end drawing of triangles*/

	glutSwapBuffers();