散景模糊节点
![散景模糊节点。](../../../_images/compositing_node-types_CompositorNodeBokehBlur.webp)
散景模糊节点生成一个和散焦相似的散景类型模糊。不像散焦是在合成中对精确区域进行的处理,此节点可以通过应用 散景图 节点产生更多复杂的效果。
Several performance optimizations are also available such as OpenCL support, calculation area restriction and masking.
输入
- 图像
标准颜色输入。
- 散景(Bokeh)
只是供 散景图 节点的输入连接端口。
- 尺寸
模糊量的尺寸限制。尺寸可以由整个图像上用单一数值或可以控制的可变值来确定。为了以后便于使用,可变值必须被勾选。关于此节点如何使用的更多范例请参看如下部分。
- 边界框
This can be used with a Box Mask matte node or with a Mask input node to restrict the area of the image the blur is applied to. This could be helpful, for example, when developing a node system by allowing only a small area of the image to be filtered thus saving composite time each time adjustments are made.
属性
- 可变尺寸
当"尺寸"输入为一个图像时,允许模糊半径可变。
- 最大模糊
"最大模糊度" 旨在通过限制计算模糊的像素数来充当优化工具。
输出
- 图像
标准颜色输出。
示例
下面是输入图像尺寸如何在实际工作中使用的三个范例。
An ID masked alpha image can be used so that a background is blurred while foreground objects remain in focus. To prevent strange edges the Dilate Node should be used.
The Z pass can be visualized using a Map Value node and a Color Ramp node as described in Render Layers. A multiply Math node can be used following the color ramp so that a blur value greater than one is used for objects outside the focal range.
![../../../_images/compositing_types_filter_bokeh-blur_example-1.png](../../../_images/compositing_types_filter_bokeh-blur_example-1.png)
使用Z通道。
A manually created grayscale image can be used to define the sharp and blurry areas of a pre-existing image. Again, a Multiply Node can be used so that a blur value greater than one is used.
![../../../_images/compositing_types_filter_bokeh-blur_example-2.png](../../../_images/compositing_types_filter_bokeh-blur_example-2.png)
使用图像。
![]() 使用Z通道。 |
![]() 使用图像。 |