Virtual reality in scientific visualization

Important in this definition is that virtual reality is computer-generated, three-dimensional, and interactive. We want to create the effect of interacting with things, not with pictures of things. Note that we claim that virtual reality is an effect, not an illusion. In partic-ular, virtual reality does not, a priori, attempt to create an illusion of the real world (although some applications do attempt to do so). Note also that it is the interface, not the content, that characterizes virtual reality