heyas;

 

   been working on some tattoos, based on mr X's tutorial (http://www.superheroinecentral.com/mrx/xpage/decaltutorial/decaltutorial.htm)  and bagginsbill's info on the tattoo thread (which i would get you the link for, if i only knew where the dip my 'subscribed' threads were hidden...!??!?!)

 

   aright, to stick a tattoo 'decal' onto a skin in the poser shader room (instead of painting it on the texture map), you blend the tattoo node with the skin texture node.  you use a mask of the tattoo, with the tattoo in white and the negative space in black.

   well... my tattoos are black on white.  instead of creating a whole new texture that is inverted, i figured, hey, why not use the same texture, but use a math node to invert it?  like... duh??

   so... i go to math nodes... i don't see no 'invert'?  'multiply by -1'?  anything?  how can i invert a black/white image? 

 

i'm using poser pro 2012.