This script creates a 3D field from a given image. It calculates the brightness of an image at a given location and translates that information into a Z coordinate at that location. The result is a three-dimensional abstraction of the image created from one continuous shape. Download the source code and try it with whatever image you want.
Note: The script employs the OpenGL library so it might not run correctly in some browsers. If you have Processing, though, just download the source code and run it.