How did Renaissance and Academic painters depict perspective in their works? Hungarian art student Bence Hajdu digitally erased humans from several famous paintings to see more clearly:
At one of the descriptive geometry classes we had a task to find and draw the perspective and horizon lines of renaissance and other pictures with significant perspective space. I thought it is not that interesting to just draw lines, so I decided to erase all the characters from them and examine how the painter really created the perspective space and how it actually looks.
You can see Hajdu's other erasures at the link.