"Very good! Renaissance artists also realized that all receding lines in a view met at the vanishing point. They called them orthogonal lines. If all these lines meet at the vanishing point (or points—you can have more than one), an artist can be certain that objects will be rendered accurately in three dimensions!

"Not every artist creates the mathematical precision of linear perspective developed by Renaissance artists. But many artists, myself included, use the general rules to create rather convincing illusions of depth!

"Can you see how I used perspective in my painting? Point to the different tricks I used."

"Now you try it…"