What are the most basic modeling methods of photography?

Light and shadow are the most basic modeling means of photography. Photographic lighting, referred to as lighting, refers to the use of various light sources to illuminate the subject in the shooting process to achieve the ideal modeling effect. Photographic lights include headlights, side lights, back lights, neck lights, foot lights and so on. When shooting flexibly, it can strengthen the sense of space and three-dimensional sense of the picture, create an atmosphere, set off the theme, and make the work have touching charm. Tone refers to the gradation of light and shade in black and white photos, and tone refers to the contrast and harmony of colors in color photos. Through artistic treatment, timbre and tone can produce artistic effects such as tone gradation, tone contrast, tone change and color change, color contrast and color harmony. , so that photographic works have strong emotional color and rich expressive force.