void really_look_at_it(void) {
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(FOV_ANGLE,
(double)disp_window_width()/(double)disp_window_height(),
0.1, 1000.0);
look_at_it();
}
void disp_really_reshape(int w, int h) {
/* set new viewing projections */
assert(glutGetWindow() == disp_win);
disp_width = w;
disp_height = h;
glViewport(0, 0, disp_window_width(), disp_window_height());
glutPostRedisplay();
}
void idle(void) {
long newtime = get_time();
long dt = newtime - oldtime;
oldtime = newtime;
if(fsim_mode) {
elevation += ELEV_RATE*dt*trunc(5*(mousey - disp_window_height()));
azimuth += AZI_RATE*dt*trunc(5*(mousex - disp_window_width()));
if(action & ROLL)
roll += ROLL_RATE*dt*trunc(5*(mousex - disp_window_width()));
} else {
if (action & ROLL)
roll_clockwise();
if (action & ZOOM_IN)
zoom();
else if (action & ZOOM_OUT)
zoom();
}
if (action & SPIN)
do_spin();
glutPostRedisplay();
}
