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Among various 3D display technologies, integral photography (IP) is one of the ideal 3D display systems because not only horizontal but also vertical parallax can be achieved through it without requiring users to wear special 3D glasses. Another advantage of IP is its applicability in material expression. In usual CG, in which rendering is carried out from one camera position, the glittering caused by the surface material is difficult to reproduce. As for users, they can perceive glittering when they move because each tiny convex lens on a fly's eye lens emits direction-dependent light. However, glittering is usually weak because the viewing zone of the IP display is not wide enough. Therefore, we propose a new method for implementing a glittering effect in the post-processing of images rendered for IP. A user can paint a large number of rendered images simultaneously and revise them with ease. We conduct experiments using a system that comprises a tablet PC with retina display and a fly's eye lens. When this method is applied to a motif of ice floating in air, which is part of an artwork entitled \"Frozen Time,\" a strong glittering effect is obtained, especially when the tablet PC is held and tilted in various directions.

3D CG Integral Photography Artwork Using Glittering Effects in the Post-processing of Multi-viewpoint Rendered Images