Parameters

The Object Select render element allows you to extract the contribution of one or more objects to the scene. The objects can be selected based on the object ID or material ID for objects with the same material.

Name - the name of the render channel

Use Mtl Id - when enabled V-Ray is going to extract the contribution of all objects that have a material with the specific material ID assigned to them

Object ID - this is the object or material ID that is going to be extracted to the current render element

Affect Matte Objects - controls whether or not matte objects will be present in the render element

Consider for AA - allows you to enable or disable the the sampling of the current render channel for antialiasing