Set MatteThis effect replaces the alpha channel (matte) of a layer with a channel from another layer above it for the creation of traveling matte effects.The effect is intended only to provide compatibility with projects created in earlier versions of After Effects that use the Set Matte effect. It is easier and faster to create traveling mattes using a track matte. See Creating track mattes and traveling mattes. For more information, see the After Effects product section on Adobe's Web site. |