What are the additive processes of sculpture?

The additive processes of sculpture include casting, modeling and assembling. The art of sculpture mainly comprises of four primary techniques. These techniques are either additive, which means that a material is added to the sculpture, or subtractive, which requires that a material is removed from the sculpture.

Using the additive process of casting, a cast is made with a mold, where a material such as metal is added to the mold and allowed to cool down. On the other hand, modeling involves the addition of a soft and pliable material, such as clay to create a shape. Assembling necessitates that different materials are linked to create a sculpture.