Author(s)

D. Tost & X. Pueyo

Abstract

Invited Paper Temporal coherence in progressive radiosity D. Tost, X. Pueyo Software Department, Polytechnical University of Catalonia, ETSEIB - Avda Diagonal 647, Pta 8, Barcelona 08028, Spain ABSTRACT In this paper we firstly present a study of the use of temporal coherence in radiosity algorithms. We underline the fact that this may be used even in static environments given that the behavior of a radiosity algorithm, when computing the form-factors of a surface is the same as the behavior of an algorithm computing visibility for a sequence of view points corresponding to a linear movement. Secondly, we study the proposed solutions for dynamic environments. Finally, we propose an algorithm for dynamic environments which target is to reach a wide use of temporal coherence. INTRODUCTION Radiosity based lighting models have proved to accurately simulate the interreflections of light between diffuse reflecting surfaces [1]. The balance of energy between N surfac

Keywords