Maria J. Vicent
Universidad Politecnica of
Department of
Sistemas Informaticos y Computación
46022 Valencia
Spain
e-mail: mvicent@dsic.upv.es |
http:// |
Abstract
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.