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A software model for an optical system incorporating microlens arrays to capture and replay an object or scene in real 3D is presented. The imaging methodology is usually referred to as "Integral Photography" (IP) or "Integral Imaging" (II). A brief description of II is given and the single-stage optical capture system, which the software model attempts to emulate, is discussed. The software design aims to reproduce the real optics system to produce rendered static and dynamic images in integral format. The effects and limitations caused by the relatively low display resolutions are addressed and their effect on image quality considered. The Phong illumination model along with the Flat, Gouraud and Phong shading techniques are employed and their respective applications to II are explained.