Hard light produces a relatively crisp boundary between light and shadow.
It can emphasise shape and texture.
A small apparent source creates more distinct shadow edges. Light placement determines where these shadows fall and what details they describe.
Illuminate an object with a small lamp and inspect the edge of its shadow.
Hardness is different from brightness. Hard light can be dim, and a bright source can be soft.
Follow a connection to understand how these ideas fit together.
Hard light gives crisper shadow edges; soft light has broader edge transitions.
This comparison works in both directions.
Crisp shadows can help define shape and texture.
Source check: . This records a check of the supporting references; it is not an expert endorsement.
A small apparent source creates more distinct shadow edges. Light placement determines where these shadows fall and what details they describe.