1. A composition method for generating stereoscopic images, comprising: positioning at least first and second pairs of virtual cameras for imaging an animated scene; with the first and second pairs of the cameras, obtaining three-dimensional (3D) data for each of the cameras for the animated scene; defining a blending region by defining a first boundary surface for the first pair of the cameras and a second boundary surface, spaced a distance apart from the first boundary surface, for the second pair of the cameras, wherein the blending region comprises a space in the animated scene between the first and second boundary surfaces; and with a blending module run by a processor, processing the 3D data in the blending region to combine the 3D data from the first and second camera pairs, wherein the blending module is configured to monotonically increase the stereoscopic disparity function in a viewing direction during the processing of the 3D data, wherein the blending module combines the 3D data associated with the first and second camera pairs in a continuous manner, wherein the blending module provides C0 or C1 continuity in the combined 3D data, and wherein the blending module combines the 3D data by linearly blending, through the blending region, a 3D data set from each left camera of the first and second camera pairs and linearly blending a 3D data set from each right camera of the first and second camera pairs.