Select a shape. > Modify panel > Modifier List > Bevel Profile
The Bevel Profile modifier extrudes a shape using another shape path as the "beveling profile." It's a variation on the Bevel modifier.
Important: Bevel Profile fails if you delete the original beveling profile. Unlike a loft object, which incorporates the shape, Bevel Profile is simply a modifier.
Note: Although this modifier might seem similar to a loft object with varying scale settings, it's actually different because it uses different outline values as distances between line segments rather than as scale values. This more complex method of resizing a shape results in some levels having either more or less vertices than others, and generally works better with text, for example.
Pick Profile—Selects a shape or NURBS curve to be used for the profile path.
Generate Mapping Coords—Assigns UV coordinates.
Real-World Map Size—Controls the scaling method used for texture mapped materials that are applied to the object. The scaling values are controlled by the Use Real-World Scale settings found in the applied material's Coordinates rollout. Default=on.