The so-called three dimensions, according to the popular theory, are only artificially designated and staggered three directions (vertical is a very characteristic understanding). With this three-dimensional coordinate, it seems that the position of any point in the whole world can be determined. It turns out that the three-dimensional position is determined.
Stereo is not only the three axes of the coordinate axis, that is, the X axis, the Y axis and the Z axis, where X represents the left and right space, Y represents the upper and lower space, and Z represents the front and rear space, thus forming a three-dimensional sense of human vision. Three-dimensional animation is a three-dimensional animation made by three-dimensional production software, which has realized the trend of further development.
The so-called three-dimensional space refers to the space we live in, which can be understood as up and down. If time exists in the form of matter, plus time, it will be a four-dimensional space. But it is not difficult to understand that you can go back to the past at will in time, but understand that "just now" and "now" are different physical beings, but you can't go back to "just now" and "past".
Three-dimensional is composed of two dimensions, that is, only two directions are staggered, and a two-dimensional and a one-dimensional are superimposed to get three-dimensional.
Three-dimensional is three-dimensional, but what we often say is only relative to the observation angle. There is no absolute front, back, left, right, up and down.
Three-dimensional technology is mainly used in animation industry. In China, three-dimensional animation mainly includes Exploring the Global Village (said to be the first three-dimensional animation of China) and Mobius Ring.
Chest circumference, waist circumference, hip circumference
Curved beauty is an important symbol to measure the beauty of women's body, and women's "three measurements" (chest circumference, waist circumference and hip circumference) are the core factors that constitute curved beauty. So, how to measure whether the "measurements" of women are standard? According to the physique of China people and the influence of body-building exercise on human body shape and physique, bodybuilding experts in China have studied and summarized the calculation methods of standard measurements for women: bust = height (cm) ×0.535, waist = height (cm) ×0.365 and hip = height (cm) ×0.565.
The actual calculated index and the standard index of 3 cm are standard. Less than 5 cm means too slim (thin); More than 5 cm indicates that it is too plump (overweight). But the measurement standard of professional female model is different. Due to professional needs, their measurement standards have a certain gap with the normal standards.
Generally, the ratio of female measurements is: bust is about equal to hip circumference, and waist circumference is about 23 cm smaller than bust or hip circumference. Through measurement and calculation, if any circumference is found to be different from the standard data, bodybuilding can make up for it Because targeted fitness can strengthen the coordinated development of "three measurements" and prevent imbalance. In addition, bodybuilding can also make the muscles and fat in all parts of the body evenly distributed, which is beneficial to bodybuilding.
Measurement method:
Chest circumference: Chest circumference reflects the size of the chest and the development of pectoral muscles and breasts, and is an important indicator of physical development. When measuring, the body stands upright and the arms droop naturally. The front of the tape measure is placed on the upper edge of the nipple, and the back of the tape measure is placed on the lower corner of the scapula. First measure the chest circumference at rest, then measure the chest circumference when inhaling, and finally measure the chest circumference when exhaling. The difference in chest circumference between deep inhalation and deep exhalation is the difference in breathing, which can reflect the function of respiratory organs. The average adult's breathing difference is 6 ~ 8 cm, and the breathing difference of regular exercisers can reach more than 10 cm. When measuring the bust of underage women, the tape measure should be placed horizontally at the lower corner of the scapula and in front of the nipple. Pay attention to remind the subjects not to shrug their shoulders or bend over when exhaling.
Waist circumference: Waist circumference reflects the development of waist and abdominal muscles. When measuring, stand upright, hang your arms naturally, don't fold your abdomen, keep your breathing steady, and put the tape measure horizontally at the narrowest place under the hip bone and ribs (the thinnest place at the waist).
Hip circumference: Hip circumference reflects the development of hip bones and muscles. When measuring, the legs stand upright together, the arms droop naturally, and the tape measure is placed horizontally at the most convex part of the pubic symphysis in front and the gluteus maximus in the back.
In order to ensure the accuracy, when measuring the "three measurements", one measurement should be on the cross section and the second measurement should be carried out before the movement. At the same time, we should pay attention to the time and place of each measurement, and don't pull the tape too tightly or too loosely when measuring, so as to be meticulous and accurate.
three-dimensional animation
Also known as 3D animation, it is a new technology with the development of computer software and hardware technology in recent years. Three-dimensional animation software first establishes a virtual world in the computer. Designers build models and scenes in this virtual three-dimensional world according to the shape and size of the objects to be represented, then set the motion trajectory of the model, the motion of the virtual camera and other animation parameters according to the requirements, and finally assign specific materials to the model, and light it as needed. When all this is done, the computer can automatically calculate and generate the final picture.
The way 3D animation technology simulates real objects makes it a useful tool. Because of its accuracy, authenticity and unlimited maneuverability, it is widely used in many fields such as medicine, education, military affairs, entertainment and so on. In the production of film and television advertisements, this new technology can give people a refreshing feeling, so it has been welcomed by many customers. Three-dimensional animation can be used to make special effects (such as explosion, smoke, rain, light effects, etc.). ), special effects (crash, deformation, illusory scenes or characters, etc. ), advertising product display, title flying and so on.
Asian 3D Animation Alliance Organization-Flower Crow Movie * China City
Three-dimensional mural
According to the British Daily Mail and Daily Express reported on 26th, John Pew, a 6 1 year-old three-dimensional artist in the United States, painted amazing and realistic three-dimensional paintings on the walls of many buildings around the world, and passers-by who don't know the truth often try to "walk into the painting".
John spent six months on the wall of a large building in Honolulu, Hawaii, painting a mural of a huge wave more than ten meters high rushing to the shore for three children. Because this three-dimensional mural is so realistic, even the local firefighters who drove by were deceived. They thought that the three children in the painting were in danger, so they stopped the fire truck and rushed to the "huge waves" to save the children. It was not until they ran a few meters away from the mural that they suddenly stopped and realized that it was just a painting.