Tear, this a fantastic tutorial, and a great help. But I have one question. You're working at a relatively small image size, and after trying the cloud filter on a large canvas, I understand why. But how do you go about upscaling the map for presentation? The one I'm working on, I've made the size of my desktop wallpaper, at 500 dpi, and I still get VERY jagged, pixelated edges with just a small zoom factor. Any help or advice you could offer would be greatly appreciated.