Author(s)

X. Pueyo

Abstract

Invited Paper The use of visibility coherence for radiosity computation X. Pueyo Dept. Llenguatges i Sistemes Informatics, Universitat Politecnica de Catalunya, Av. Diagonal 647pi.8, E-08028-Barcelona, Spain ABSTRACT Coherence has been widely used to improved the performance of visibility computation in traditional hidden line/surface algorithms. The appearance of radiosity algorithms has increased the importance of computing efficiently the visibility function given that it is performed a lot of times to obtain a single static image. We develop, in this paper, a characterization of the uses of coherence in radiosity algorithms and we give a brief and schematic description of proposed algorithms using them. INTRODUCTION As well known, radiosity was introduced as a new powerful method to model the behavior of light interacting between diffuse reflecting surfaces. This new technique dealt with a problem of illumination models not studied in depth up until that moment. Derive

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