Forms are art elements that are three-dimensional, with height, width, and depth. Form, together with shape are areas or masses which define objects in space. Forms in art are used by artists to produce an illusion of 3D and depth on a two-dimensional surface.
Not sure who helped make painting on canvas a common practice but around the end of the 15th century, canvas<span> became more popular as it was cheaper, easier to transport, allowed larger works, and did not require complicated preliminary layers of </span>gesso.
