Generating images is fairly easy; the format of the output is well-understood. But what if we want to make something three-dimensional? It’s not just enough to figure out where we want to put the vertices, we need to know how to assemble them into a visible object.
Here’s a tutorial for Unity, explaining how to take your points and turn them into mesh geometry.
http://blog.nobel-joergensen.com/2010/12/25/procedural-generated-mesh-in-unity/