Small and medium-sized studios are generally divided into interview studios, news studios, and virtual studios. Compared with the large variety studio, it is characterized by characters, and the lighting effect is fixed and there is no change. Mainly reflected in: the light of the characters must be accurate, the environment should have prominent points in the stability of the overall surface, the relationship between the characters and the background should be reasonable, the difference is that some of the columns are lighter than others, and some are lighter than others. The light ratio is different for different environments, different backgrounds, and lighting treatment.

The principles of virtual studio lighting：

Light: The virtual studio lighting system is based on the new three-primary soft light, which has uniform illumination, small shadow, less heat, constant color temperature and uniformity, and the light cloth is naturally on the host's face. And realistic. This type of lamp meets the basic requirements of the virtual studio for light.

Regional lighting: In the virtual studio, in order to enhance the authenticity and liveliness of the program, the host will have a certain activity area. Therefore, the lighting of the foreground (host) cannot be like the lighting of the news. And the area must be lighted.

Three-dimensional lighting: traditional news studios generally use the three-point lighting principle to meet the requirements of TV lighting, while the virtual studio technology uses the color key blue technology to perform indigo processing, therefore, to eliminate the blue The impact on the foreground (the host) must have the concept of three-dimensional lighting.

First foreground lighting, after the blue box lighting: Because the three primary color soft light has a large light-emitting area, after the light is applied to the foreground (host), it will produce a certain illuminance on the blue box. Therefore, after the foreground illumination meets the requirements, the blue light box can be properly filled to meet the requirements of the computer indigo. The key to the perfect integration of the future and the electronic background lies in the scientific and reasonable lighting of the foreground and the blue box.

Illumination requirements: The illuminance of the virtual studio is different from that of the traditional studio. It requires the foreground to match the illumination of the blue box background and pursue the consistency of illumination. In addition, the flexibility of the virtual studio column and the diversity of the electronic background also require that the illumination must meet the needs of different columns and different electronic backgrounds.

In the studio, the methods of processing the light levels of the three basic rays of the main light, the secondary light, and the back light are flexible and varied, and the effects are mutually constrained. When we are in the studio, we are looking forward to the best lighting effects, lighting the subject, determining the light level, measuring the light intensity, adjusting the light ratio, and eliminating the interference, we must grasp the basic method of lighting, the studio The most commonly used light in the light is background light, back light (contour light), top light, side light, and surface light. The light generally follows the three-point lighting and the twelve-point circular lighting rule:

Backlight: Brighten the entire background to make the picture look clearer;

Backlighting: also called contour light, so that the host's outline is obvious and prominent, and the effect of the overall image of the character image is improved;

Top light: a light source that enhances the hair of the host and complements the shoulder;

Sidelight: softens the dead angles and shadows that the main light does not reach, and softens the shadow of the host's neck;

Face light: The host's facial light is even and delicate.