Have seen a lot of KTV bar decorate rendering, stage lighting equipment found KTV rooms in the use of lamplight is a key to the KTV design elements. Many KTV rendering using common design technique and material but just focus on building lighting effects, the KTV rooms will be taken on a new look. Below to introduce some knowledge of lighting technology, for learning.
Because the overall feel of the lighting effects pay attention to the scene, so the design of the light must fully consider the scene effect, in order to achieve the lighting effect of harmony and perfect.
1, must first clear the purpose of the light
In the KTV to use in the design of lighting, the primary design to create a clear lights atmosphere of the scene. To create a unique style in the light of the appearance of the tone for the whole scene is very important. Lights often represents a feeling, or can let the audience's eyes, such as scene displaying more abundant levels, increase the depth of the scene. So when designing the lights must understand: the lights of the design improves the content of the scene? Design of light to show a kind of what kind of tone? Whether to have special lighting effects in the scene, if so, are they should use the lamp or created by other means?
In addition to the usual types of lights, a lot of 3 d animation software to incandescent lamp, solid light sources and special offers many special effects in the form of material properties. Although strictly speaking, some do not belong to the type of light, in the scene, they are usually in visible effect on the appearance of added again. A simple example of this is visible light shine or shine. Due to these effects cannot be automatically generated in 3 d, they include rendering technical secondary school door handle you need, and to consider their appearance and strengths.
2, secondly, to clear the type of environmental performance in the scene
In the scene lighting generally divided into: artificial light, natural light, a combination of both types
(1), artificial light: simple is people invent illuminant, artificial light is probably the most common in three types of light source. You also need to consider the light come from where, how about the quality of the light. If you have several light sources, divided to figure out which one is the main light source? It is important to determine whether to use light color. Almost all of the light source has a color color, rather than pure white.
(2), natural light: is the sun. When using natural light, and we have a few other questions to consider: now is what time of day; Is clear or cloudy day; Also, in how many light reflection to the environment?
(3), the combination of artificial light and natural light, in the bright outdoor filming, photographers and lighting engineers sometimes use mirrors or auxiliary light to moderate harsh shadows.
3, to make your own lighting design is simple and necessary
In the KTV design may be there are many kinds of lighting design, so be sure to find out their own lighting design scheme is the most simple and necessary.
Different from the real lights in the scene lamplight, it need to spend more time in rendering time, the more complex the light setting, rendering the time spent, the more light management will become more difficult. When increase the light source, will naturally reduce the reflection point. At some point, increase the light source is not on the appearance of the scene has improved, and it will be difficult to distinguish between the increased the ＆#118alue of the light source. You can view each light source, try to separate the relative ＆#118alue of it to the scene to measure. If for its role in doubt, just delete it.
4, collect various data, find the reference design
In creating a realistic scenario, it shall get into the habit of from actual photos and movie themes. Good resources can provide clues, let you know the specific objects and environment at different times in a day or under certain conditions is how to look. A photo through careful analysis of the position of highlights and shadows, it is usually possible to reconstruct the image base location and intensity of the light. Through the use of the existing raw material to rebuild the lamplight decorate, also can learn a lot. After considering the above problems, should now create light for a scene. Although the number of light sources, types, and their individual properties will vary with different scenarios, however, there are three basic types of light source: key, added light and background light, they together to coordinate operations.
5, background light
Ambient light as "marginal" light, usually through illuminates the object edge separate the target from the background. It often placed in the opposite of the three quarters of the key light, its work on the edge of the object, cause small reflects specular highlights. If the 3 d scene model is composed of many small rounded edges, the highlights are likely to increase the credibility of the scene.
6, add light
Added light used to populate the scene of darkness and the shadow areas. Key light in the scene is one of the most notable light source, but the light of supplementary light can provide the depth of field and realistic sense. Of the more important supplement from natural diffuse light, this type of lighting is usually referred to as the ambient light. This type of light is important, in part because it improves the brightness of the whole scene. Unfortunately, most of the renderer ambient light uniformly applied to the whole scene. Reduced the overall dark scene, it eliminated the possible features, not any light to illuminate the object modelling and shadows, it is to make the main reason for the scenario doesn't look realistic.
Simulation environment is the better way to light, the low intensity spotlight in the scene or floodlight placed in an appropriate location. This type of auxiliary light should reduce the shaded area, and to be at the bottom of the key light of direct illuminate and corner complement some light.
Except in the scene natural light scattering light, or the environment, add light to light too dark area or stressed to some parts of the scene. They can be placed in the key light relative position, to soften the shadow.
7 key light,
In one scene, the main light source is often referred to as the key light. The key light is not necessarily just a light source, but it must be the main lighting light source. Also, the key light is not like a point light source fixed in one place.
Although the point light source usually on three quarters of the position (from the front of the object, 45 degrees and turn upward from the center line of 45 degrees, this location was used as a set a lot of the time), but according to the needs of specific scenarios, also can come from behind or below the object, or any other location. The key is usually placed first light source light, and use it to create a preliminary lights in the scene.
While the initial placement as illuminated object provides a good method, but the result is, indeed, monotonous and boring. Shadow is usually very rough and very obvious. Similarly, scene always looks too dark, because there is no natural light environment to highlight the shadow area. This is very useful in certain scenarios, such as night scene, however, for most images, is somewhat inappropriate.
8, building the light source, light display and other independent small combination of source, sometimes can use the map to create, instead of using the actual light source.
9, eliminate some objects from the light source
Out of some of the light source, an object at the time of rendering, you can save time.
The principle for making shadows are correct. In the scene each light source is used to make the shadow, this kind of situation is very rare. Make the shadow can be very expensive, especially under the condition of light track shadow), and sometimes is harmful to the final image.
10, pay attention to the use of lighting design tips
For example: light source, adding color or texture, may be it's easy to make scene to obtain the good atmosphere.