This page provides information about the Normals Render Channel in V-Ray for Blender.
Overview
Normals is a render channel that stores the camera space normal map using the geometry's surface normals. The Normals Render Channel is useful for adjusting the lighting in the composite. For example, the red, green, and blue channels can be adjusted in compositing software.
Bump maps are not represented in this render channel; to include bump maps, use the Bump Normals Render Channel.
When the Normals Render Channel is saved as a separate render channel, its output value is kept between [0;1] range; if saved as a multichannel .exr, its output value is from -1 to 1.
UI Path: ||V-Ray Node Editor|| > World > Render Channels > Geometry > V-Ray Normals

Properties
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 – Specifies whether to include this render element in deep images.
Filtering – Applies an image filter to this channel.