Make Transparent

Make Transparent is a freeware filter for Final Cut Express and Final Cut Pro that adds transparency to the white areas of the clip. This is particularly useful when applied to the standard Render or the Shapes generators, because it may make their usage much easier and more flexible than when used with the standard FCE or FCP techniques.

You can simply apply Make Transparent to the Highlight clip (created with Video Generators/Render/Highlight), after this has been inserted into the timeline on top of the main clip, and fix the opacity of its shaded areas by tuning the Opacity control of FCE or FCP, as in the next figure.