Radiance vs radiosity

First of all I would like to thank you all for help you gave me the past week.. I actually gave thank you to everybody, but the last week I had serious problems with my mail-server so It was reporting "message sent" but it actually did not.. so I've lost the point on which mail I have sent and wich not, so please, don't be upset with me!

Now, to the topic... I'm about to start writing my thesys which will be about road lighting with radiance and hopefully about tunnel-lighting... I am interested in doing an introduction in which I would like to talk also a bit about differences between Radiance-software method and radiosity, what is good and what is bad about both, mainly about illuminotechnic calculation. And I would like to include comparisons with other tecniques if they do exist.

Can someone give me some tip, or better, redirect me to someone else's job about this matter to read from ?

Thank you very very much !!

Lucio

.. Caminante no hay camino, solo se hace camino al andar ..

.. Caminante no hay camino, solo se hace camino al andar ..

First of all I would like to thank you all for help you gave me the past week.. I actually gave thank you to everybody, but the last week I had serious problems with my mail-server so It was reporting "message sent" but it actually did not.. so I've lost the point on which mail I have sent and wich not, so please, don't be upset with me!

Now, to the topic... I'm about to start writing my thesys which will be about road lighting with radiance and hopefully about tunnel-lighting... I am interested in doing an introduction in which I would like to talk also a bit about differences between Radiance-software method and radiosity, what is good and what is bad about both, mainly about illuminotechnic calculation. And I would like to include comparisons with other tecniques if they do exist.

Can someone give me some tip, or better, redirect me to someone else's job about this matter to read from ?

Thank you very very much !!

Lucio

.. Caminante no hay camino, solo se hace camino al andar ..

.. Caminante no hay camino, solo se hace camino al andar ..

Hi Lucio,

For a convincing quantitative (also some qualitative) comparison between raytracing (Radiance) and radiosity (Lightscape), the following may be useful:

Kopylov, E. A., A. B. Khodulev, and V. L. Volevich (1998). Physically Accurate Lighting Simulation in Computer Graphics Software. Moscow, Moscow State University, Keldysh Institute of Applied Mathematics, Russian Academy of Sciences

The only caveat is that this study seems (i did not verify) to be funded by INTEGRA (Specter, the Japanese raytrace system) and does not seem to be published in any peer-reviewed system I am familiar with. I can't remember where I found that paper (in fact the citation might be inaccurate) but an earlier version (excluding the 3rd author) is available at http://www.keldysh.ru/pages/cgraph/articles/pals/index.htm

A. Khodulev and E. Kopylov, "Physically accurate lighting simulation in computer graphics software," presented at the Sixth International Conference on Computer Graphics and Visualization, St. Petersburg, Russia, 1-5 July 1996

Hope this is helpful.

Cheers,
YC Huang
Center for Building Performance and Diagnostics
Carnegie Mellon University

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