Final answer:
In Italy, the use of large scenic pieces led to the development of the Proscenium Theatre, influenced by the Renaissance and innovations like single-point perspective, proscenium arch, and the raked stage.
Step-by-step explanation:
In Italy, the increasing use of large scenic pieces led to the development of the Proscenium Theatre, a format that allowed for more elaborate scenic design and staging. As the Renaissance era saw an artistic shift towards realism, the invention of techniques such as single-point perspective and improvements like the proscenium arch, wing and drop scenery, and raked stage changed stage design. These innovations, sparked by the Italian scenic designers and architects, like Filippo Brunelleschi, revolutionized theatre by adding visual depth and realism to both the set and the overall theatrical experience. This is evident in the intricate stage spaces and large, movable scenic elements used to engage audiences.