Radial
Radial Mapping pushes a Plane of content around a set radius.
To create a Spherical mapper go to Menu Bar-> Create-> 
Radial
Radial Mapping Properties
Lens
- Resolution: The resolution of texture being applied to objects. This should match the selected materials resolution.
- Aspect Ratio: The aspect ratio of the texture mapper based on resolution.
- Height: The height of the Radial Mapper
- Angle Horizon: How far around horizontally content is projected measured in degrees.
- Dynamic Clipping Planes: With this enabled, Clipping Planes, Near and Far will automatically set themselves to the region of interest.
- Near: This sets the closest plane the texture mapper will begin to render within.
- Far: This sets the furthest plane the texture mapper will will stop to render within.