This example is a preview of a new shape that will appear in the next version of the Shapes3D library (which will be V1.9.2 when it is ready for release).

The shape is called the PathTube and the path the tube takes is controlled by the programmer creating a simple path generator class - this sketch will be included in the release to give an example of how to do this.

The new version of the library also has an improved mesh coordinate calculator for the PathTube and BezTube classes. It makes a more realistic mesh that is less prone to twisting along the tube length so should improve texture mapping.