ent. The paper is made light-resistant through a bath in chromcarbonate solution, then it is dried and photoprocessed with a halftone negative. Visit Manfred Rupp's site for Hans Ulrich's more thorough description of this process. He claims that pigment printing is the best photoprocess for color, tone and lightfastness known to date; indeed that it is the only color photopositive process that has its longevity, in contrast to the standard processes which hold their colorfastness and light-resistance no more than twenty years.
pilaster - In architecture, a flat, rectangular column (often fluted) with a capital and base, attached to or set into a wall as an ornamental motif. It may be decorative or used to buttress the wall.
Eight types of pilasters observed in the Blair Plain.
William Thornton (American, 1759-1828), Library Company, 1791, Philadelphia. The façade of this red brick Georgian or Federal style building bears four white pilasters. They rise from the level of the "water table" (even with the top of the entry stairs) to the bottom of the pediment, which crowns the building. Thornton is most reknowned as the original architect of the US Capitol.
The Glossary of Medieval Art and Architecture defines pilaster and provides an illustration.
Also see Corinthian, Doric, order, pier, and respond.
pilotis - In architecture, thin steel or reinforced concrete posts used by architects in the early twentieth century to support concrete roof and floor slabs, avoiding the need for bearing walls.
The singular form is piloti.
Also see column and pier.
pillar - Usually a weight carrying member, such as a column or a pier. Sometimes it is an isolated, freestanding structure used for commemorative purposes.
In Japanese art tradition, a pillar print is a narrow vertical print, known as hasira-e.
Also see menhir, monolith, monument, pilaster, portal, post, respond, and support.