1, main light-this is the main light used on the object.
2. Auxiliary light-The main purpose of auxiliary light is to fill the shadow area caused by the main light and prevent it from being too dark.
3. Background light (ambient light)-Used to separate the main object from the background.
Main light: when you start to arrange the lights, first determine the position of the main light, because it is the main light source, and the rest of the lights can be said to "support" the main light.
Auxiliary light: When you only turn on the main light, you will find that the whole picture is too strong and there is a big difference between light and shade, which may cause too many shadows in our shooting picture. At this time, auxiliary lights are needed to supplement it. In fact, to put it bluntly, the purpose of auxiliary light is only to fill the shadow caused by the main light.
Background light (ambient light): The main function is to set off the subject or render the atmosphere. Therefore, when dealing with background light, we should pay attention to both contrast and harmony. When the space scene is large and there is enough distance between the space and the background, the background can be illuminated separately. Background light generally does not interfere with the light distribution of the main body, and it is easy to control the coverage, brightness and uniformity of background light.
Second, the lighting principle:
Lighting is divided into commercial lighting and realistic lighting, most of which are commercial lighting. What kind of renderings are most popular with customers? That is a word, the better the renderings, the more customers like them (this is what outsiders say). The layman looks at the excitement, and the expert looks at the doorway. Let's talk about what kind of renderings are good-looking renderings. What's the point?
The basic principle of lighting arrangement is that local lighting is mainly based on large area lighting. What I'm talking about is only the details and the highlights in the picture (such as the lights on the barber chair). And when I say large-area lighting, I only mean the lighting on the wall. This is the reason why the novice lamp is not good-looking. This kind of lamp is peaceful, with uniform color depth and no distinction between primary and secondary. Local details are not prominent. The contrast between light and shade is not strong, which is also the reason why the lights are peaceful.
First of all, this local lighting gives priority to large-area lighting. What kind of place is a place to know? Like decorations? Like a bonsai on the ground? What about the decorative paintings on the porch? A large area lamp can be understood as the light from the downlight above.
Iii. Lighting Selection and Relationship:
1, how to discard dead light
When we use universal lighting, we mainly use sofas, chairs (barber chairs, work places), decorative cabinets, decorative paintings, doors and details, and can partially brighten decorations and so on. ...
2. the relationship between 2.ie.
The height and brightness of IES are related to the area. The lower the height, the smaller the area, the brighter. The higher the height, the larger the area and the flatter the brightness. So many novice lights are flat, because the height is consistent, and there is no contrast between the area size and brightness. When we irradiate a part, the area should not be too large, otherwise the light will be flat and there will be no relationship between light and shade.
3. Know how to choose ten thousand.
What kind of lighting and what kind of WAN are important. You can choose a larger WAN on the wall, which is very beautiful, while we should choose a smaller WAN on the ground, so that the ground WAN will be smaller and the light spots on the ground will have a good contrast. Very layered. Decoration only needs his local prominence, and we don't want such a big sum. What you need to understand is that the details are outstanding. The ground wide area network should not be directly peaceful, but should have a contrast between light and shade, because there are layers.
4, the lighting should be fine, not too much.
Too many lights make the work process messy and difficult to handle, and the display and rendering speed will also be seriously affected. Only the necessary lights can be kept. For unnecessary lights, we must resolutely not keep them. The more lights, the better. On the contrary, the less the better. Why? There is a simple reason. The more lights there are, the shadow will not be reflected. The more lights, the flatter the lights.
5. Selection of exposure mode
There are many exposure methods, and the difference between linear exposure and exponential exposure is that linear exposure will explode his picture, but the color will be brighter, while exponential exposure will reduce the brightness of explosion, and the dark part will increase the brightness, so the whole picture will feel very flat and gray. So how to choose between the two? There are two ways. First, you can use exponents, but you should improve the contrast of the maps in ps. In this way, the final picture will not be gray. Secondly, linearity can also be used, but the illumination and gamma value should be controlled well. This is used according to personal habits.