Actually, those curtain textures [gdlcentral.com free download - same as old 20th Anniversary Special Edition CD] work fine when used correctly ... with an alpha mask to make the middle transparent. They are 'cutouts'. Apply them to a parapict object (search forum) or to a small wall that is otherwise invisible.
(They are most easily, and graphically, applied and manipulated dynamically, in programs such as Piranesi or Artlantis.)
AFAIK, the 'real' curtain objects (polygonal) were written by Oleg Schmidt and are for sale at objectsonline (or somewhere?). I don't know that real curtains have ever been part of the delivered library (?).
Karl
One of the forum moderators
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