How to express the three-dimensional sense of the scene in photography

Photography is a kind of plane plastic arts, which only expresses two-dimensional space and is easy to form a dull picture. If the picture wants to be vivid, it is necessary to use photography skills to show the three-dimensional image of the scene on the picture. Commonly used methods are: a. Adjust the shooting position to express the three-dimensional sense of the scene. When shooting from the front, you can't see the depth of the scene, and the three-dimensional sense is not strong. When shooting from the side, you can show both sides of the scene and have a strong three-dimensional sense. B. adjust the shooting distance to express the three-dimensional sense of the scene. When the shooting distance is close, the scene on the screen is much smaller, with strong contrast and strong sense of space. When the shooting distance is long, the size of the scene before and after is weak, and the sense of space will be weakened. C. adjust the shooting angle to express the three-dimensional sense. When shooting at a high angle, the lens has a wide shooting range and there are many scenes on the screen, so the near is big and the far is small, which enhances the three-dimensional sense of the picture. When shooting at a low angle, the foreground is tall and prominent, the background is relatively reduced or blocked, the contrast is not significant, and the three-dimensional sense will be weakened. D. adjust the tone contrast to express the three-dimensional sense. When the timbre lacks change, the feeling will be dull. When the tone contrast is large, the three-dimensional sense is prominent. When the main color is bright, the background is dark and the three-dimensional effect is strong. The dark subject and bright background will also increase the three-dimensional sense. When illuminated along the light, the illumination obtained by the subject is equal, so it lacks stereoscopic impression. Sharp outline lines will appear when the backlight or side light is illuminated, and the three-dimensional effect will be enhanced. E. adjust the aperture size to express subjective feeling. When the aperture is small, the range of depth of field is large, which makes the scenery at different distances very clear and the photos lack three-dimensional sense. If the aperture is properly enlarged and the depth of field is controlled, the outline details of the main object will be clear, while the background foreground will be blurred, which will help to express the three-dimensional sense of the scene. F. Adjust the focal length lens to show the stereoscopic effect of the scene. When using a short focal length lens, the picture includes both the foreground and the broad background, forming a strong image size contrast and a strong three-dimensional sense. When using a long focal length lens, the distance between the foreground and the background is compressed, and the picture can not form a strong contrast, which will lose the three-dimensional sense. G. Use different filters to express the stereoscopic effect of the scene. Different filters can enhance or weaken the perspective effect. For example, the blue filter can accelerate the perspective and help to form a three-dimensional effect.