The script for the film was completed as early as 1988, but because the technology did not meet the requirements of the film at that time, Disney only started filming in 1994. Disney’s “secret laboratory” used 48 experts and 350 people from various parties. It took 3.2 million work hours to complete the film. All the material of the film can be filled with 70,000 CDs, and the software team has compiled a total of 70,000 lines of programs, all of which add up to a 25-volume encyclopedia. For this film, which took 12 years of preparation and production, with a total investment of nearly 200 million U.S. dollars, Disney bought Lockheed's abandoned aircraft factory and gathered nearly 350 production and technical staff (at the most 900 people) , To create a digital studio called "secret laboratory" TSL THE SECRETLAB
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The two location teams of the film spent 18 months shooting live scenes all over the world as the background of Dinosaur's life in the film. Death Valley in California, Campbell National Park in Australia, the swamps of Florida, the two major islands of Hawaii, Venezuela National Forest Park, Western Samoa and other 14 scenic spots. These sceneries were returned to the studio by computer-controlled photography equipment. A batch of digital experts were separated one by one, and then merged with computer images
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In order to achieve realistic results, the staff specially studied Dinosaur's movements. With the assistance of biologists, based on their skeletal structure, fill out the attached muscle tissue, and combine the two to depict the appearance and various actions of these Dinosaurs. They even sit on elephants and giraffes personally to get close to these behemoths and experience the feeling of them when they move, so that they can design truly convincing visual effects
. While observing the activities of elephants to simulate Dinosaur, the staff found that when these large animals move, not only the soles or legs of the feet, but also the muscles of other parts of the body will be affected and cause the epidermis to vibrate. Therefore, in order to allow the audience to experience a more realistic situation, the technicians specially designed a set of procedures to cut the muscles on the Dinosaur into thousands of polygons of varying sizes according to their location and characteristics, and attach them to the bones. , So that the muscles and skin of Dinosaur in the film can produce different wrinkles or vibrations according to the direction, strength, and speed of the whole bone movement. When making lemur animations, in order to show the fine fur on their bodies, the technicians not only added tens of thousands of hairs to each lemur, but even more exaggerated, they also specially used software to combine these tens of thousands of hairs. One number, and through this program nicknamed "hair stylist", in the computer, according to the environment described in the scene, the hair of different numbers is determined according to the wind direction and its direction and position, and even different hair colors
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