I'd like to see a brush or something for photoshop that I can use to draw crinkly subterranean passageways and chambers. I am envisioning a black background, and the passageways colored with a gradient going from white to a medium brown, with white passages being at the highest elevation and brown passages at the lowest. This way passageways could pass over each other on the map and the relative level would be clear. But I don't want to spend the time drawing all of those corridors and rooms, I want a tool to make that easier.

By the way if I do maps for the underworld of Sorol I would be using a scale of about 40 miles to the inch.

-Rob