Analysis of visibility masks and resultant image quality

Abstract

Virtual Interfaces and Visibility Masks are an extremely efficient method for parallelising the Radiosity Method. They exploit data locality, and keep communication between nodes as low as possible. Previous papers on this technique have been mainly concerned with raw performance, and have failed to analyse how these techniques can impact on the quality of the final image. This paper explores the efficiency of generating visibility masks, and analyses the tradeoff between image quality and speed.