1. A method for information layering in medical diagnostic ultrasound, the method comprising: acquiring at least first and second types of data both representing different types of characteristics of a planar region in a patient, the first and second types of data acquired as two-dimensional ultrasound imaging data for the planar region without acquiring additional data of the first and second types of data representing locations outside the planar region for stereoscopic first and second views; generating a three-dimensional surface of the first type of data representing the planar region where a depth of the surface at each point in a plane representing the planar region is spaced away from the plane by an amount based on the second type of data only from the planar region; rendering the first and second views of the surface from first and second viewing angles, the first angle different than the second angle; and stereoscopically displaying the first and second views of the surface.