One-Point Perspective – Advanced Techniques Including Curves and

Why do circles appear as ellipses in one-point perspective?

• Due to incorrect drawing techniques

• Because of the viewer’s eye level

• Because they are not parallel to the picture plane

• Because of lighting effects

What happens to a circle that lies exactly on the horizon line in perspective?

• It appears as a perfect circle

• It disappears

• It appears as a straight line

• It becomes a square

Which method is used to construct ellipses in one-point perspective?

• Compass method

• Bounding square method

• Freehand sketching

• Grid method

What is the major axis of an ellipse in one-point perspective?

• Always points to the vanishing point

• Is parallel to the horizon line

• Is perpendicular to the direction of depth

• Is vertical

Which of the following is NOT a correct tip for drawing ellipses?

• Use midpoint anchors

• Use light, short strokes

• Trace a coin for perfect curves

• Rotate the paper for comfort

What is the correct way to draw a standing cylinder in one-point perspective?

• Use two circles and connect them

• Use bounding squares to draw ellipses and connect them with vertical lines

• Draw two rectangles and connect them

• Use a compass to draw circles

What causes an ellipse to appear “pointed” at the vanishing point?

• Correct axis orientation

• Misunderstanding of axis orientation

• Using a ruler

• Drawing too lightly

Which of the following is a curved element commonly found in interior scenes?

• Square table

• Rectangular window

• Arched doorway

• Triangular shelf

What is the purpose of the bounding square in ellipse construction?

• To draw a perfect circle

• To define the ellipse’s orientation and proportions

• To measure the height of the object

• To find the vanishing point

Which of the following affects the eccentricity of an ellipse in perspective?

• The color of the object

• The material of the object

• The distance from the viewer and height relative to the horizon line

• The lighting direction