Rhino native renderer tutorials

i’m not looking for a 3rd party renderer, am just after a tutorial for rhinos in built renderer. it must be reasonably simple; not had much luck with rhinos in built ‘help’ facility.

The first three tutorials on this page I think fit the bill:
http://www.rhino3d.com/tutorials#rendering

as you say, they do fit the bill; very many thanks. my search skills need updating, obviously…