Fast Multipath Radiosity using Hierarchical Subscenes

This paper presents an efficient acceleration technique for the global line radiosity Multipath method. In this approach, the scene is subdivided in a hierarchy of box bounded subscenes, the boxes subdivided in a grid of virtual patches which store angular information. A new recursive (according to the hierarchy of subscenes) function allows to execute the Multipath algorithm at different levels of the hierarchy. A speed up factor up to 3 - 4 has been obtained on some of the tested scenes. Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism

• Type: Journal
• Year: 2004
• Where: CGF
• Authors: Francesc Castro, Mateu Sbert, László Neumann
• Keywords: CGF 2004, Efficient Acceleration Technique, Line Radiosity Multipath, Multipath Algorithm