Question

it is used to give three dimensional effect to an object​

Answer 1

Answer:

A cube, rectangular prism, sphere, cone and cylinder are the basic 3-dimensional shapes we see around us.

Answer 2

One technique artists may use to create the illusion of a three-dimensional space in a two-dimensional work of art is the "trompe l´oeil" which means "fool the eye". Another is the Op Art, in which the artist creates optical illusions resembling three dimensions. Traditionally, lights and shadows were used to create the three dimensional form. Others use mixed techniques such as adding a photograph or other objects to the work.

The three dimensional image produced by laser beams is called a hologram .

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