Aye, I'm having a difficult time with this one, I'm curious if anyone know how to produce transparency with an image map? Like, when blending wireframe shots with rendered shots? I know I've seen it posted before, or maybe i saw a tutorial on the subject, but how do I tell Photoshop to drive the transparency with an alpha channelor image map? You know, so that the grey level corresponds with the transparency level? Does this make any sense?