Animation traditionally is done by hand-drawing or painting successive frame of an object, each slightly different than the proceeding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

   In full computer animation, complex mathematical formulas are used to produce the final sequences of pictures. These formulas operate on extensive databases of numbers that defines the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques from three-dimensional transformation, shading, and curvatures.

   High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

   A camera can be used to film directly from the computer’s display screen, but for the highest quality images possible, expensive film recorders are used. The computer computers the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is replaced for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time – consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions

Which of the following statement is supported by the passage?

Câu hỏi liên quan

• The passage suggests that the tsunami resulting from the Krakatoa volcano .....

• According to the researchers, husbands should ............

• What is the author's main purpose?

ZUNIA12

• What do the Hindu people think about marriage?

• Which of the following might be the topic of the next paragraph?

• The word “exotic" in paragraph two is closest in meaning to ________.

• The word “clogged” is most likely to correspond to ............

• The word ‘akin’ in paragraph 1 could be best replaced by ...........

• It is mentioned in the passage that before the electric lamp was invented ...............

• According to the text, Marrination, when built, will be a(an)__________ city.

• This passage would probably be assigned reading in which of the following courses?

• The word “perishable” in paragraph 1 is closest in meaning to ............

• Why does the author refer to Gilbert White’s book in line 2?

• The word “tolerate” in paragraph 5 is closest in meaning to ............

• What does “they” refer to?

• Which of the following is NOT true about the concerns over roboties?

• The author mentions all of the following as jobs held by Moore EXCEPT ________

• What is probably the writer’s attitude in the passage?

• According to the passage, the difficulty in diagnosing allergies to foods is due to ______________.

• What does the word “which” in the fourth paragraph refer to?