Matte Effect is a free effect that creates a boolean bitmap. Certain effects require the usage of a hidden layer as a matte. Matte selection controls are common to such effects.
Matte Effect is offered for free, without any warranty and you cannot sell it to someone else.
You can download the Win or Mac version. A sample project can also be downloaded.
This effect works with 8-bpc, 16-bpc, and 32-bpc color. The optimal usage will require 32-bpc and full resolution. In 32-bpc color, After Effects does not clip the video and allows the user to view any out-of-range data.
Matte Layer – A layer which will be used to isolate an object which will generate the effect.
Red Channel : Upper Limit, Lower Limit – Select a range of color values to isolate the stencil bitmap.
Green Channel : Upper Limit, Lower Limit – Select a range of color values to isolate the stencil bitmap.
Blue Channel : Upper Limit, Lower Limit – Select a range of color values to isolate the stencil bitmap.
Alpha Limit – Select limit to isolate the stencil bitmap.
Invert Bitmap – Selecting this will invert the output.
