What is true of perspective in drawing?

The correct understanding of perspective in drawing involves recognizing that a vanishing point above the horizon indicates the viewer's perspective looking upward, which is often referred to in artistic terms as the "zenith." This concept is fundamental in linear perspective drawing, where the placement of vanishing points helps to create the illusion of depth and three-dimensionality on a two-dimensional surface. When a vanishing point is placed above the horizon line, it suggests that the viewer is looking up at objects, which is a crucial characteristic in depicting scenes realistically.

When considering other options, while it's true that a vanishing point below the horizon might suggest height or that two vanishing points are commonly used in certain perspectives, these ideas do not fully encapsulate the specific meaning of a vanishing point defined as the zenith. Additionally, asserting that vanishing points are irrelevant in realistic drawings contradicts the principles of perspective, which emphasize their importance in creating a believable spatial relationship between objects depicted in a drawing.