I'm trying to recreate an effect like the iOS activity app icon where a circle overlaps itself and leaves a shadow. However I'm struggle to recreate it.
I've tried cutting a segment of one of the circles and overlaying it on top of the other one. Using a drop shadow doesn't work though as it appears all over the cut out segment rather than just the end. I tried using a gradient on the "behind" layer as well, but I couldn't position this correctly either to achieve this type of effect. I've also tried adding another full circle in between the two layers with a gradient applied to it, but it doesn't look like a shadow being created from the "top" layer.
If it helps my circles are a solid color rather than a gradient as below, but I just can't work out how to create it.