Nowadays computer graphics is used in many domains of our life. At the end of the 20th
century it is difficult to imagine an architect, engineer, or interior designer working without a
graphics workstation. In the last years the stormy development of microprocessor technology
brings faster and faster computers to the market. These machines are equipped with better and
faster graphics boards and their prices fall down rapidly. It becomes possible even for an
average user, to move into the world of computer graphics. This fascination with a new
(ir)reality often starts with computer games and lasts forever. It allows to see the surrounding
world in other dimension and to experience things that are not accessible in real life or even not
yet created. Moreover, the world of three-dimensional graphics has neither borders nor
constraints and can be created and manipulated by ourselves as we wish – we can enhance it by
a fourth dimension: the dimension of our imagination.