The VRayUserScalar texture allows the user to read and return a single number value of the currently shaded objectas 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 (ie.eg., material glossiness, or a blend between two other textures inside a Mix texture, etc.) with user-defined properties. For more information about user-defined properties (i.e., User Attributes), see the User Attributes Workflow page.