A client had me do a flyer and newspaper ad for his car show. He was happy.
He also wanted a T-Shirt. We redid the CMYK design in coarse halftones for silkscreening. I don't like the way it looks. What I want to do is redraw the design but for shading use cross hatching and stipling instead of halftones.
I made a new layer and went to the K channel to trace the black outlines. But the paintbrush does nothing on the 2nd layer in the K channel. Nor in the yello, cyan, or magenta channels.
Brush works fine with all channels visible.
Above is a screen capture. I'm in layer 3, K channel. Paint brush tool doesn't work.
Here's with all 4 channels visible:
When all channels are turned on, I can use the paint brush tool just fine (see curley Q on top of "De")