What is visual effect? Please give a brief answer.

Simply put, it is the visual feeling that the image of the photographic picture brings to the audience.

In photography practice, by means of angle selection, lighting, color and composition, we can accurately grasp the shooting opportunity and post-processing technology, and accurately, vividly and vividly show the shape, color, texture, three-dimensional sense, movement and spatial relationship of the subject on the screen, so as to make it conform to the visual laws and make the audience feel real.