1. A stereoscopic image processing apparatus for displaying an arbitrary object so as to obtain stereoscopic vision of said object, characterized by comprising: parameter determining means for determining a stereoscopic vision parameter on the basis of 3D space data to be displayed and displacement information representing a displacement amount between the left- and right-eye images in a 2D rendering space; and output means for generating and outputting the left- and right-eye images for stereoscopic vision output by using the determined stereoscopic vision parameter.