Francesc Castro Mateu Sbert László Neumann Fast Multipath Radiosity using Hierarchical Subscenes. 43-54 2004 23 Comput. Graph. Forum 1 http://diglib.eg.org/EG/CGF/volume23/issue1/v23i1pp043-053_abstract.html db/journals/cgf/cgf23.html#CastroSN04