3D indoor lighting in accordance with the following lighting principles to achieve the best results:

1, the lighting setup process referred to as "lighting". Although it is said that a complex scene by 100 lighting engineers to the light will have 100 different programs and effects, but a few principles of lighting is everyone will comply with. For interior rendering and interior photography, there is a famous and classic theory of lighting is "three points of illumination".

2, three-point lighting, also known as area lighting, generally used for a smaller range of scene lighting. If the scene is very large, it can be divided into a number of smaller areas for lighting. There are generally three lights can be, respectively, the main light, auxiliary light and background light.

3, the main body of light: it is usually used to illuminate the scene of the main object and its surrounding area, and serves as the main object of the function of projection. The main relationship between light and dark by the main light, including the direction of projection. The main light of the task as needed can also use several lights to **** with the completion. Such as the main light in the position of 1 5 degrees to 30 degrees, known as the smooth light; in the position of 45 degrees to 90 degrees, known as the side light; in the position of 90 degrees to 120 degrees to become the side of the backlight. The main light is often used to complete the spotlight. The author likes to set the brightness of the main light to about 240.?

4, auxiliary light: also known as fill light. With a spotlight irradiation fan-shaped reflective surface, in order to form a uniform, non-directive soft light source, with which to fill the shadow areas as well as the main body of the light left out of the scene area, and reconcile the contrast between dark and light areas, at the same time, can form the depth of field and levels, and this wide range of uniformity of the characteristics of the light cloth, so that it is a layer of the scene of the bottom layer of color, defining the scene of the tone. To achieve the effect of soft lighting, the brightness of the auxiliary light is usually only 50-80% of the main light.　

5, the background light: its role is to increase the brightness of the background, so as to set off the main body, and make the main object and the background is separated. General use of floodlights, brightness should be dark not too bright.