The VRayUserScalar texture allows the user to read and return a single number value of the currently shaded object as a result. This can be useful if the same material or texture is applied to several objects in the scene, but we want to control some of its aspects (i.e. material glossiness, or a blend between two other textures inside a Mix texture etc.) with user-defined properties.

UI Paths: 

Texture > plugins > V-Ray > VRayUserInteger
Texture > V-Ray > VRayUserInteger

User Attribute – Specifies the name of the user attribute that is looked up and returned from this texture.

Default Value – Specifies the value to return if the user attribute is not found on the shaded object.