Almost: all equal ratio lines (x=z+c, x=y+c, y=z+c where c is some constant) head off in a straight line towards their respective horizons, but all other non-ax

Almost: all equal ratio lines (x=z+c, x=y+c, y=z+c where c is some constant) head off in a straight line towards their respective horizons, but all other non-axis-aligned lines converge at the vanishing points.