Теория и практика перевода. Терехова Г.В. - 80 стр.

modeling such phenomena for computer graphics. Here, we are concerned with
modeling and animating water. Although modeling water for computer graphics is
not a new research area, only recently have graphics researchers sought to take
advantage of the huge body of literature on computational fluid dynamics in the
interests of generating highly realistic animations.
        Mechanical engineers and physicists have been modeling the behavior of
liquids on computers for nearly 40 years. However, their approach in general
has focused on very specific goals, such as modeling the pressure around a newly
designed ship hull as it undergoes various ocean conditions or calculating how
the coolant in a nuclear reactor core flows around spherical rods. This focus on
few specialized engineering applications provides students of computer graphics
with extremely useful techniques with which to achieve their own more general
goals of modeling water so it looks visually convincing, moves realistically, and
can be simulated on a desktop computer in a reasonable amount of time. To
achieve this result, animation tool writers need to find ways to characterize the
motion of a liquid so an animator can:
                 • Model and animate it quickly on computer;
                 • Model how it interacts with traditional computer graphics
         environment;
                 • Allow the model to be manipulated in order to break the
         boundaries or real-world physics;
                 • Create great-looking picture.

      2.2.4 Текст “First Principles”

        The first hack I ever did was executed at an exhibition stand run by BT's then
rather new Prestel service. Earlier, in an adjacent conference hall, an enthusiastic
speaker had demonstrated view- data's potential world-wide spread by logging on to
Viditel, the infant Dutch service. He had had, as so often happens in these
circumstances, difficulty in logging on first time. He was using one of those sets that
display auto-dialled telephone numbers; that was how I found the number to call. By
the time he had finished his third unsuccessful log-on attempt I (and presumably
several others) had all the pass numbers. While the BT staff was busy with other
visitors to their stand, I picked out for myself a relatively neglected view data set. I
knew that it was possible to by-pass the auto-dialer with its pre-programmed phone
numbers in this particular model, simply by picking up the phone adjacent to it,
dialing my preferred number, waiting for the whistle, and then hitting the keyboard
button labeled 'view data'. I dialed Holland, performed my little by-pass trick and
watched Viditel write itself on the screen. The pass numbers were accepted first time
and, courtesy of...no, I'll spare them embarrassment...I had only lack of fluency in
Dutch to restrain my explorations. Fortunately, the first BT executive to spot what I
had done was amused as well.
          Most hackers seem to have started in a similar way. Essentially you rely on
the foolishness and inadequate sense of security of computer salesmen, operators,
programmers and designers.