I'm currently trying (and failing) to create a close-to-realistic pile of ground coffee beans. I put a blue annotation to indicate roughly what I'm trying to accomplish, and I got pretty close with the nodes shown.
The problem is this setup doesn't rough up the edges of the gradient into values way closer to 0 and 1, instead of the current soft gradient look shown here, and obviously is void of any kind of roughness.
I feel like I'm missing something obvious. Any help is greatly appreciated.