Wavelet Radiative Transfer and Surface Interaction

In this work-in-progress paper, we present a solution to the illumination problem that is intermediate between the conventional local and global approaches to illumination. It involves the representation of radiance on a surface as a finite element expansion in terms of wavelets. By expanding in terms of "Nusselt coordinates", we show how irradiance, transport, and surface interaction can be evaluated simply and directly in terms of wavelet coefficients. We present an example of transport.