SIGGRAPH 99 Animation Theatre

What can we see when our notion of "viewpoint" is expanded?  In a "multiple-center-of-projection image," (described in the SIGGRAPH paper by that title) each column in the image is acquired by a different camera location.  The "camera" in these images is no longer a single point in space, but rather a 3D curve - which can twist through a scene and surround objects.  The resulting image captures many different viewpoints simultaneously and may exhibit strange distortions which are impossible to create with conventional modeling and rendering tools.