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