intersection point.
- Starting at the point where the two lines intersect, draw a vertical
line straight down. Stop at the horizon line.
Add two more vertical lines to create the ends of the box. Where you
place these lines depends on how wide you want the box to be. Too
far apart, and the box would look weirdly long, too close together, and
it would look too squat.
Erase the guidelines, including the horizon line, and this is what you’re
left with: a box in correct perspective.