Predominantly used in NPR or 'non-photorealistic' rendering, Piranesi also works well adding effects and interest to photorealistic images as here, in a beautifully detailed image by Jacek Mielewski, an architect at MAAG in Warsaw, Poland.
Autodesk Architectural Desktop 2007
You can render directly from Architectural Desktop 2007 into a Piranesi format file, by downloading a plugin developed by Informatix and Autodesk.