This page provides information about the Metalness Render Channel in V-Ray for Blender.
Overview
The Metalness Render Channel shows areas where a V-Ray Mtl, with Metalness is applied. The Metalness values are baked into an image, where black corresponds to 0, and white - to 1. The image created can be used as a metalness mask when creating PBR shaders in post-processing.
Note that values between 0 and 1 give an unrealistic metalness effect. They can be used creatively and for smooth transitions from a metal to a non-metal material on the same geometry. For more information on metalness and it's role when creating PRB shaders, visit Understanding Metalness.
UI Path: ||V-Ray Node Editor|| > World > Render Channels > Advanced > V-Ray Metalness
Properties
Enable Deep Output – Specifies whether to include this render channel in deep images.
Filtering – Applies an image filter to this channel.