During the Renaissance period, many artists began to experiment with new techniques that changed the way art was created and perceived. One of the most groundbreaking methods was the use of perspective, which allowed artists to create the illusion of depth on a flat surface. Among these pioneers was Leonardo da Vinci, whose work exemplified the principles of this technique. His paintings, such as the 'Last Supper' and 'Mona Lisa,' showcase remarkable attention to realistic proportions and depth. This new focus on realism transformed art, prompting future generations to explore and expand these techniques further.