int i = 0;

loop:

rot_z = rot_z + 0.05;
rot_x = rot_x + 0.05;

surface=x^2/30+y^2/10+z^2/10-2;
draw_surface;
plane=z-y;
cut_with_plane;
plane=z-x;
cut_with_plane;
filename="ellipsoid_cut_" + itostrn(3,i)+".ras";
i = i + 1;
save_color_image;

if( i < 50 ) goto loop;

//do_background=no;

// No coordinate axes
//
//curve=x;
//draw_curve;
//curve=y;
//draw_curve;