Which type of lighting is not commonly reflected off surfaces to enhance visibility?

Direct lighting is commonly used to illuminate spaces by shining light directly from a fixture onto surfaces. This type of lighting typically produces sharp, defined shadows and enhances visibility by providing concentrated areas of brightness. Unlike other types of lighting, direct lighting does not rely on reflection in the same way that diffuse, indirect, or ambient lighting does to improve visibility across a space.

Diffuse lighting distributes light more evenly across an area by scattering it in multiple directions, enhancing visibility without creating harsh contrasts. Indirect lighting relies on reflective surfaces to bounce light into a space, contributing to an overall softer illumination. Ambient lighting is designed to provide general illumination and often utilizes a combination of both indirect and diffuse methods to ensure that spaces are well-lit.

In contrast, direct lighting's primary focus is to shine light directly where it is needed, making it less reliant on reflections for its effectiveness in enhancing visibility. This characteristic highlights why it stands out among the options presented.