April 05
Prof. Ismael H. F. Santos -  ismael@tecgraf.puc-rio.br                                                          2
Programa simples (usando GLUT) - cont.
void display (void) {
 /* clear window */
 glClearColor(1,1,1,1);
 glClear(GL_COLOR_BUFFER_BIT);
 /* draw red triangle */
 glColor3d(1,0,0);
 glBegin(GL_TRIANGLES); 
  glVertex2d(-1,-1); 
  glVertex2d(1,-1); 
  glVertex2d(0,1);
 glEnd();
 /* update screen */
 glFlush();
}