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Realistic image generation of scenes using three-dimensional objects entails the description of complex optical phenomena resulting from the interaction of light with the object surfaces. The main goal of an accurate illumination model is to simulate the light distribution with respect to conservation and transport energy principles. Given a scene by means of small elementary surfaces, the radiosity technique defines an analytical illumination model using the radiative heat transfer theory expressed by an energy balance. Model complexity is largely due to the calculation of geometric factors, defined with a double area integral, and named form factors. Herein, a new expression of the form factor is given, which can be reformulated, in a computationally more efficient manner, in the form of a simple line integral. Parallel implementations of this method are then compared.

Additional information

Authors: MICHELIN S, JRC Ispra (IT);MAFFEIS G, JRC Ispra (IT);GROSSETIE J C, JRC Ispra (IT);ARQUES D, Université de Franche-Comté, Laboratoire d'Informatique de Besançon (FR)
Bibliographic Reference: Paper presented: MICAD '93, Paris (FR), February 9-12, 1993
Availability: Available from (1) as Paper EN 37339 ORA
Record Number: 199310360 / Last updated on: 1994-11-29
Original language: en
Available languages: en
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