Physical Sky 物理天空Basic 基础 Coord.Time and Location 时间及地点 Sky 天空 Sun 太阳 Atmosphere 大气层 Clouds 云彩 Details 详情 Volumetric Clouds 体积云 Fog 雾 Rainbow 彩虹 Sunbeams 阳光 Sky Objects 天空物体

Sunbeams

阳光

Sunbeams shine through a hole in the cloud cover. 阳光透过云层上的一个洞照射进来

Sunbeams shining through the clouds can be quite a beautiful and useful effect.

透过云层的阳光可以是一种非常美丽和有用的效果。

In order to make the sunbeams visible, a few prerequisites must be met:

为了使阳光可见，必须满足几个先决条件:

From the point of view of the camera, the sun should be mostly hidden behind the clouds. Otherwise the sunbeams would simply shine in the direction of the camera and only a white glare will be seen. 从照相机的角度来看，太阳应该大部分隐藏在云层后面。否则，阳光只会照射在相机的方向上，只能看到白色的眩光

The cloud cover must be structured in such a manner that sunbeams can even pass through them, i.e., dense, with intermittent holes or clearing. 云层的结构必须能够让阳光穿过云层，也就是说，云层密集，有间歇性的孔洞或空隙

Using fog (see 使用雾(见Fog Tab 雾标签) in addition to sunbeams can marginally increase render times. )除了日光可以稍微增加渲染时间

Turbidity Dependent

与浊度有关

If, as in reality, you want to let atmospheric particles affect your sunbeams, simply activate this option. This links the visible sunbeams to the Effect Turbidity setting (Sky tab). The more hazy the air (atmosphere), the better the sunbeams can be seen. If Turbidity is set to 0, no sunbeams will be visible.

如果，在现实中，你想让大气颗粒影响你的阳光，只需激活这个选项。这就把可见的阳光和浊度效果(Sky tab)联系起来了。空气(大气)越模糊，阳光就越清晰。如果混浊度设置为0，就看不到阳光。

Intensity[0..100%]

强度[0. . 100% ]

Here you can adjust the brightness of the sunbeams

在这里你可以调节日光的亮度

Min. Brightness[0..200%]

最小亮度[0. . 200% ]

Left: low 左: 低Min. Brightness 最小亮度 value; right: high 价值; 右: 高Min. Brightness 最小亮度 value. 价值

Use this slider to determine at what minimum brightness value (internal) the sunbeam will become visible. Select a high value if you want to make only the brightest sunbeams visible, a low value if you also want to make weak sunbeams visible. The brightness of the rendered sunbeams is defined by Intensity.

使用这个滑块来确定在什么最低亮度值(内部)的阳光将成为可见的。如果你想让最亮的阳光可见，选择一个高值，如果你想让弱的阳光可见，选择一个低值。渲染的阳光的亮度是由亮度决定的。

Start Distance[0..+∞m]
End Distance[0..+∞m]

起始距离[0. . + ∞ m ]终止距离[0. . + ∞ m ]

Although you will not use these settings very often, we will nevertheless describe them for you. These settings, calculated from the respective camera’s point of origin, let you define an area within which sunbeams will be depicted. The preset distances mean that the sunbeams will be rendered at a starting distance from the camera of 1,000m (Start Distance) to a distance of 20,000m (End Distance).

虽然你不会经常使用这些设置，但是我们会为你描述它们。这些设置，根据相机的原点计算，让您定义一个区域，其中将描绘阳光。预先设定的距离意味着，从1,000米(开始距离)到20,000米(结束距离)的起始距离将呈现出阳光。

Sample Distance[20..+∞m]

样本距离[20. . + ∞ m ]

Sample Distance 样本距离 values that are too low result in 如果值太低，则会导致banding 条带 or 或step 步骤 effects, as shown above. 影响，如上所示

Everywhere physical effects are simulated (e.g., a ray of light loses intensity over a particular distance) points of measure (samples) are defined that calculate the level of intensity at a given location. The more samples you define, the more precise the result will be. Longer render times will also result.

每个地方的物理效果都是模拟的(例如，一束光线在一个特定的距离失去了强度) ，测量点(样本)被定义为在一个给定的位置计算强度水平。定义的样本越多，结果就越精确。更长的渲染时间也会产生。

The same applies to Sample Distance: The lower the value, the more precise the sunbeams will be rendered (and yes, the render times will increase as well).

同样的情况也适用于样本距离: 值越低，阳光的渲染就越精确(是的，渲染时间也会增加)。