V-Ray Normals is a render element that stores the camera space normal map using the geometry’s surface normals. The Normals Render Element is useful for adjusting 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 element; to include bump maps, use the Bump Normals Render Element. Also compare with the Point Position Render Element , which can render a normal map in camera (screen), object, or world space .