3D Channel Extract (PB only)This effect makes auxiliary channels visible as either grayscale or multichannel color images. You can then use the resulting layer as parameters for other effects. For example, extract the z-depth information in a 3D channel file and then use it as an influence map in the Particle Playground effect, or extract values from the Unclamped RGB channel to produce a matte that generates glowing highlights. For more information, see the After Effects product section on Adobe's Web site. |