Maria J. Vicent
Universidad Politecnica of
Department of Sistemas Informaticos y Computación
We present a lighting method for outdoor scenes with vegetation. The method is compatible with multi-resolution trees generated using random L-Systems. We include a sky dome model that gets the luminance and chromaticity values at several sampling points for different time and location. The samples are used to compute the light arriving to the objects in the scene depending on the insolation conditions. The method proposed is based on the form factor and polar plane concepts. These concepts are used not only to illuminate leaves or ground, but to solve visibility problem too. The method we have developed allows changes on the lighting conditions during rendering in a fast and realistic way.