What kind of light makes sharp edges and rough surfaces really stand out, making things look solid and touchable?

Hard light makes sharp edges and rough surfaces really stand out, making things look solid and touchable. Hard light originates from a small, concentrated light source, or a source that appears small relative to the subject, such as direct sunlight on a clear day or a bare light bulb. This type of light casts well-defined, sharp-edged shadows, meaning the transition from the illuminated area to the shadowed area is abrupt and clear. These distinct shadows clearly outline the object's contours and edges, making its shape and form immediately apparent. When hard light strikes a rough surface, it creates strong contrast by brightly illuminating the raised points, known as highlights, while casting deep, dark shadows into the depressions and crevices of the texture. This interplay of intense highlights and deep shadows accentuates every detail of the surface's unevenness. The combination of sharp edges, clearly defined form through precise shadows, and the pronounced rendering of surface texture through highlight and shadow contrast gives an object a strong sense of three-dimensionality, volume, and a tangible quality, making it appear solid and touchable.