ABSTRACT
Three-dimensional graphics have come a long way in the last 10 years or so. Computer games look fantastically realistic on even an off-the-shelf home PC, and there is no reason why an interactive virtual environment cannot do so, too. The interactivity achievable in any computer game is exactly what is required for a virtual environment even if it will be in a larger scale. Using the hardware acceleration of some of the graphics display devices mentioned in Chapter 12, this is easy to achieve. We will postpone examining the programmability of the display adapters until Chapter 14 and look now at how to use their fixed functionality, as it is called.
