2d texture to pointcloud

Hey, is there a simple effect-node in VVVV beta to convert a 2D texture to a kind of simple pointcloud?

Not exactly what you are asking, but here is a video tutorial for point clouds. You might be able to swap the source data for something else:

Thanks for the link. I would like to try to generate some kind of 3D representation from a 2D texture, for example a portrait.
Something similar to:

my main question is how to generate depth information from a 2D texture?