http://www.digitaljournal.com/article/141233

Computer game graphics could soon be much more realistic

Posted Mar 16, 2007 by Jishpar

http://news.bbc.co.uk/2/hi/technology/6457951.stm

The University of Saarland, Germany had made this achievement.
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Scientists have achieved this by using custom-made chips or a high-end PC graphics card. A team from the university has demonstrated a lighting technique, known as ray-tracing, using relatively low-powered processors.
In computer games they use a technique known as rasterisation which involves drawing all the elements of a scene using polygons. They use ray-tracing to depict scenes to show realistically .
Many professors has continuously efforted to develop the series of ray-tracing algorithms which is very useful technique.
The algorithms are being made available to anyone to use via the Open RT project.