Second, before linear perspective appeared, there were many perspectives. If it refers to a broader definition of generalized perspective, it appeared 30 thousand years ago.
Note: perspective in a broad sense refers to various methods of spatial expression; Narrow perspective (linear perspective) refers to scientific perspective methods such as depicting objects and reproducing spatial linear perspective gradually established in the14th century.
Painting perspectives include:
① Longitudinal perspective. Draw an object far from the observer on a plane on the object close to the observer.
② Oblique perspective. Objects far away from the observer extend upward along the oblique axis.
③ Overlapping method. The foreground object is above the background object.
(4) Near-large and Far-small method, drawing a distant object smaller than the near equivalent object.
⑤ Proximity method. The proximal portion is intentionally narrowed to prevent the distal portion from being blocked due to the normal perspective of the proximal portion.
⑥ Aerial perspective. The farther away the object is, the more blurred the image is; Or objects at a certain distance are blue, and the farther they are, the heavier the color, which can also be attributed to color perspective.
⑦ Color perspective method. Due to the air barrier, objects of the same color are bright when they are near and gray when they are far away.
Detailed:
Modern perspective basically refers to narrow perspective (that is, linear perspective), which is the product of the Renaissance era, that is, it reproduces the actual spatial position of objects and conforms to scientific laws.
This method of systematically summarizing and studying the shape changes and laws of objects is the basis of linear perspective. /kloc-The painting theory of Italian painter L.B. alberti in the 5th century describes the mathematical basis of painting and discusses the importance of perspective. Piero Della Piero Della Francesca, an Italian painter of the same period, made the greatest contribution to perspective. German painter A. Diu Lei applied geometry to art, which developed the science in theory. At the end of 18, the right-angle projection method founded by French engineer Meng Qi completed the drawing method of correctly depicting any object and its spatial position, that is, the straight-line perspective method. L Leonardo da Vinci also created scientific air perspective and invisible perspective through case studies, which are collectively called perspective. Because objects have three attributes in the eyes: shape, color and volume, the perspective phenomena presented at different distances are mainly narrowing, discoloration and blurring.
Its corresponding perspective research object is:
distant view
① The perspective shape (contour line) of the object, that is, the reason why the shape changes and shrinks at different distances from top to bottom, left and right;
② Color change caused by distance, namely scientific color perspective and air perspective;
(3) The blur degree of objects at different distances, that is, the invisible perspective.