Create your own bump And displacement Maps

One of the best things about bump and displacement maps is that visually they make sense, with white areas usually denoting the highest areas, black the lowest and 50% grey equalling no change. This means that while there are applications like Bitmap2material that can make a good guess at creating relief, it is sometimes better to use a 2D image application. Using a high-pass filter can be an excellent way to get started in creating a relief map which can then be painted into using traditional 2D painting techniques.