Reflections in Water

Gravity ensures that the surface of still water is always perfectly level. This means all the mirror plane vanishing points are in the horizon line. The perpendicular vanishing point (virtual viewpoint) is directly under the viewer's feet, which means it is never visible on the image plane. Vertical lines define all reflection perpendiculars. Finally, most buildings are constructed plumb and level, so the building vanishing lines are either parallel or perpendicular to the reflecting plane, which means they do not have to be reflected (rotated). No pvp, no reflected vanishing points