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4.2. Technology for Interaction 65
video output to two projectors. The graphics processors are fast enough to run
the distortion-correction software without the need for any special hardware.
4.2 Technology for Interaction
Once the basic decision has been made about the type of display technology
that will be utilized for the virtual environment, y ou also have to decide how
to include interaction with the other senses:
• The sound system is relatively easy to prov ide and control. A number
of software libraries, for example Microsoft’s DirectSound [13], allow
application programs to easily render 3D soundscapes which match the
graphics.
• We will see in Chapter 10 that the sense of stereopsis adds greatly to
the perception of reality. The com ...