I have black lineart for a drawing multiplied over the drawing itself. Because I have little foresight, I had simply painted white wherever I wanted to "erase" the lineart -- since it was just going to be multiplied in the end anyway.
I'd like to color the lineart now. Unfortunately, the white on that layer is extremely uncooperative. I've tried:
1) isolating the black with the background eraser.
2) isolating the black by loading the channel as a selection, then filling in the lineart on a new layer.
Neither one was effective enough to be the answer I need. Are there any other good methods I can try to make the multiply effect WYSIWYG so I can clipping-mask color down onto the lineart itself?
Alternately, is there any good way to color the lines as they are without ruining the transparency of the white in the multiplied layer?
I use Adobe CS5 extended.