Cylindrical UV mapping

Cylindrical mapping creates UVs for an object based on a cylindrical projection shape that gets wrapped around the mesh. This projection is best for shapes which can be completely enclosed and visible within a cylinder, without projecting or hollow parts.

1. Select the faces you want to project UVs onto.
2. Select UV > Cylindrical Mapping, or in the UV Editor's UV Toolkit go to Create > Cylindrical.
3. Use the manipulator to change the position and size of the projection shape.
4. Use the UV Editor to view and edit the resulting UVs.
   
   Note:

   Projection mapping only works properly on a single object at a time. If you need to apply a projection to multiple polygonal objects in a single step, combine the objects into one, apply the projection, and then separate the parts back out. Otherwise, perform a projection on each object separately.