Introduction
People are living in a three-dimensional space. They know what is up, down, left, right, close and far. They know when something is getting closer or moving away. However, the traditional personal computers can only make use of two dimensional space due to relatively low technology level of the video card in the past. As the new technology has been introduced to the video card industry in recent years, the video card can now render 3D graphics. Most of the PC computer games nowadays are in three dimensions. …
