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.
Navisworks
NavisWorks 1.3 and later comes complete with Piranesi support. Use File > Export > Piranesi EPix.
We are aware of a problem with NavisWorks 5 and Autodesk NavisWorks 2009 where the material channel may be generated with only one material; in this case, the plane lock and colour lock may still be used.