Share Email Facebook Twitter LinkedIn Segment.Roughness Property The roughness value for given material. Namespace: Autodesk.Revit.DBAssembly: RevitAPI (in RevitAPI.dll) Version: 26.4.0.0 (26.4.0.0) Syntax C# public double Roughness { get; set; }Property ValueDouble See AlsoReferenceSegment ClassAutodesk.Revit.DB Namespace