Thanks for that link Paul!
DPaint on the amiga had a function ( i think it was called 'mirror' ) that did the same.
i remember spending lots of time trying to create figures that read both ways, even made animations with it, i loved doing that, very much like solving a puzzle,
i wouldn't mind if TVP manages to put it in somewhere, though i'm the first to admit that its practical use is questionable,
unless...of course you are a wallpaper designer...
Peter Wassink - 2D animator
• win7/64 - Xeon Quadcore E5410@2.33Ghz - 12Gb memory - system and temp file on SSD - Nvidia Quadro FX570