light mapping and bump mapping simply require premade maps...
for light mapping white=light black=shadow, anything on the greyscale will give you the right indication.
for bump mapping you use something called a normal map, this can either be a greyscale image like the lightmap with white=highlight black=flat
else it can be a coloured normal image, these are generally produced with special tools as your base is blue & highlight green/yellow ... the varying colours depicts different heights and steps of incline.
the nVidia software downloads for developers currently has a very good selection of tools for this.
