The Coverage Render Channel holds anti-aliasing data based on the Render ID Render Channel. When the Coverage Render Channel is multiplied by the Render ID Render Channel in compositing, it adds anti-aliasing to the Render ID channel, providing a quick object mask.

UI Path: ||V-Ray Node Editor|| > World > Render Channels > Utility > V-Ray Coverage

See the Render Channels page to find out where you can find these properties.

Channel Name – Customizable name for the render channel.

Enable Deep Output – Includes this render element in deep images.