In which technique are materials built up to create form?

The technique where materials are built up to create form is known as additive sculpture. This approach involves adding material to a base or armature to mold and shape the desired outcome, allowing the artist to construct forms directly from materials such as clay, wax, or even metal. It permits a level of creativity that emphasizes the construction of volume and space, making it an integral method in three-dimensional art forms.

In contrast, subtractive sculpture involves removing material from a solid piece, such as carving stone or wood, which can lead to a different artistic expression and aesthetic. Relief sculpture can be considered a form of additive or subtractive method and typically features figures that project from a flat background without being free-standing. Installation art can involve various techniques, but it focuses more on creating an immersive environment rather than specifically building up forms. Thus, additive sculpture is uniquely characterized by its process of accumulation and construction.