Experimental System for Visualization of the Light Load

Martin Cadik, Pavel Slavik and Jan Prikryl
Czech Technical University in Prague
Department of Computer Science and Engineering
121 35 Prague
Czech Republic

e-mail: cadikm@centrum.cz

http://cadik.posvete.cz/papers/wscg03

 

Keywords: computer graphics, global illumination, radiosity, ray tracing, Monte Carlo techniques

Abstract
This paper presents our work on an experimental system for visualization of the light load. The light load is thought as the total amount of light radiation received by all areas of the solved environment. The emphasis of the presented system is on outdoor architectural scenes, but indoor scenes are handled as well. The aim of the designed system is to visualize the light load either in one moment or integrated during a longer time period. We have selected the hierarchical Monte Carlo radiosity method to solve the specified problem. This method was enriched by parallel light sources and specular reflections to face the specific aspects of the problem. New “lighting” iteration was added to computation phase to consider natural light sources such as Sun and sky. The system was implemented in Java programming language using the Java3D API. Thanks to this implementation environment our system is flexible, easy to modify and extend and it is suitable for experimental and educational purposes.

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