Arithmetic

This is a basic Channel effect. It composites a color, which can be animated, to any one of the color channels R, G, or B, or all three combined, using one of the compositing modes on a popup (Figure 11.10).

Figure 11.10: Arithmetic Channels Popup

FCP calls them Operators, but they are really compositing modes. In the Arithmetic sequence in your Browser, I have laid out a short clip of Dance3 12 times. Each clip has a different Operator mode applied to its RGB value using the default color, gray. Look through these to get a basic idea of how the Operators work. Most of the Operators such as Add, Subtract, Darken, and Lighten are commonly known, but there are a couple of unusual Operators, Ceiling and Floor, that produce interesting results. Remember these are only compositing with the color you select, not with the anything else.

Channel Blur

I confess I can t tell you what this effect gives you that multiple copies of Gaussian Blur don t already, except the ability to blur more than one channel at a...