mandelbrot {
    xrange( -0.713,-0.4082 );
    yrange( 0.71429,0.49216 );
    maxiter( 1024 );
    set_lightpos( -1,-2,2 );
    spread_colours( 0,127,0,255,0,0,0,255 );
    spread_colours( 128,1023,0,0,255,255,255,255 );
    spread_colours( 0,0,0,0,0,0,0,0 );
    method( cpm );

    show( 3d, 0.5 );
    };

