Kevin, I wish I could show you, but I’ll have to explain using word pictures. Background is white. One orange circle is solid, created using the Ellipse Tool. The second orange circle is more like a donut, or a thick, flat ring. I created it using the Ellipse Tool as well, but with no fill, and a stroke of 74 pixels.
The donut is static. The circle slides in and slides underneath the donut–it reminds me of the Chanel logo. The area I would like to see as a “difference” is where the ring and solid circle intersect.
I applied two circular masks onto the shape layer I call “ball,” the solid circle. Both of these masks wrapped the perimeter of the ball. When I tried applying “Difference” to each of these, there was no effect. But I think I misunderstood you.
Can you clarify?
Thanks,
Dave