Well that's a relief!
I have experimented with the Relief Object, a C4D primitive, as a result of an interesting thread at the Creative COW which started with the question as to how one could create point selections from images. A gentleman called Chris Smith suggested that we stick the image onto a relief object so as to raise the points of, apparently, luminance contours. "Then you can square marquee them in a front view window". Great, we will remember that. Meanwhile, however, I played about with the newly found primitive and Ihave, so far, come up with this image.