hey guys, this may be a bit of a newbie q.
I wanted to import a photshop file of a person that has been cut out of it's background. I wanted to import this file into Maya then extrude it to give the flat 2d image a slight 3d thickness. Though insted of it creating the gray blim shape behind it I wanted to wrap this photo around the extruded shape of itself. Does that make sense?
It makes perfect sense, but it may be a little trickier than you were hoping.
In order to trim and extrude a surface, you need to define the edge with a curve--just defining it by having a mask channel isn't enough.
So you need to draw a curve that outlines the person in this image. Either draw it in Maya or in another app and import it into Maya. Then extrude that curve to get the depth of your object. Then cap the top and bottom of that surface to give you the front and (if necessary) back flat surfaces of it. Project the image file texture and it will wrap correctly around the whole thing.