The most important aspects of VR were formulated by computer graphics pioneers Ivan Sutherland in 1965 described the idea: Don't think of it as a type otechnology that integrates multimedia content. means to convey informationalcontent, but it also allows users to interact with content elements. VR uses computer graphics to create a realistic world without a screen, think of it as a window, a window through which the virtual world can be viewed. The challengeis computer graphics and making virtual worlds look real, sound real, move andreact to interactions in real time and even feel real.