Mobile GPU-Based Importance Sampling

Abstract

In this paper we developed an interactive global illumination application for mobile devices and we show that interactive filtered importance sampling is possible even with a low-power mobile graphics processing unit (GPU). Taking the limited power and the screen size of mobile devices into account we designed a user interface that allows selecting different predefined objects environments and textures. With our implementation desired materials can be visualized interactively by changing the parameters of Bidirectional Reflectance Distribution Function (BRDF).