Many sources are used for images including beloved paintings from bible illustrations and earlier church art in art history books. These images are in the public domain, which means no one any longer owns the copyright, most likely because the artist is long dead. So these familiar scenes are recreated again and again even in modern works.
In fact, the Tiffany Studio used old works like Heinrich Hoffmann's The Agony, depicting Jesus in the Garden of Gethsemane.
Other popular paintings like The Good Shepherd are
also repeated in modern renditions of traditional painted stained glass windows.
We'll describe in more detail and in subsequent posts the process of painting the actual glass pieces. But, first, the client must choose a design and that is accomplished by researching the historic artworks, modifying as necessary or creating completely new designs, then rendering them as colored maquettes for the patron's approval.
These are examples of color renderings
created for St. Catharine of Siena. Greer's
drawings are completed by hand, but many
stained glass designers use computers.