Set Alpha

设置 Alpha

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Set Alpha

设置 Alpha

Colors can also contain information about their opacity, i.e., the alpha component. If this should be exchanged or redefined, the Set Alpha Node can be used. 颜色还可以包含关于它们不透明度的信息，即 alpha 分量。如果应该交换或重新定义这个值，则可以使用 setalpha 节点

You already have a color and want to add an alpha value? Then this is the right Node for the job.

您已经有一个颜色并且想要添加一个 alpha 值吗？那么这就是适合这项工作的 Node。