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Interactive Walkthroughs and Higher Order Global Illumination

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Abstract
The subtle lighting effects, which can be simulated
by global illumination, are important to make virtual
worlds look realistic. Higher order global illumina-
tion methods, like Wavelet Radiosity, have proven
to be very efficient, but do not directly lead to solu-
tions that can be used by the hardware used to display
walkthroughs. In this paper, we discuss methods to
efficiently map these higher order radiosity solutions
to representations suitable for hardware acceleration.
Additionally, we discuss similar methods to deal with
directionally-depended solutions generated for exam-
ple by Wavelet Radiance algorithms.