These nodes can be used to manipulate each color channel independently. Each type is differentiated in the applied Color Space.
In compositing and texture context each node supports the Alpha channel. In the texture context only RGB color space is available. In the shading context of Cycles combine and separate nodes are added for HSV and vectors (XYZ).
输入 / 输出选项¶
标准图像输入 / 输出。
In this first example, we take the Alpha channel and blur it, and then combine it back with the colors. When placed in a scene, the edges of it will blend in, instead of having a hard edge. This is almost like Anti-Aliasing but in a three-dimensional sense. Use this node setup, when adding CG elements to live action to remove any hard edges. Animating this effect on a broader scale will make the object appear to "phase" in and out, as an "out-of-phase" time-traveling sync effect.