Which designer is known for using light to shape angles and reveal the dimension of a stage?

The designer known for using light to shape angles and reveal the dimension of a stage is Adolphe Appia. Appia was a pioneering figure in the field of stage design and lighting who advocated for the expressive use of light in theatre. He believed that lighting could transform the perception of space and create different emotional tones within a performance.

Appia's innovative concepts emphasized the interplay of light and shadow, allowing the audience to perceive the stage in a more three-dimensional way. This approach was groundbreaking, as it moved away from traditional flat stage designs, enabling actors and scenery to exist within a more dynamic and visually compelling environment. His influence laid the groundwork for modern stage lighting, integrating it as a vital component of theatrical storytelling rather than merely a functional necessity.

In contrast, while other designers have also contributed significantly to stage craft and lighting, their approaches may not have focused as directly on the use of light to shape spatial dimensions in the same transformative manner as Appia.