About matching the Cornell box image.

I tried first with white light source but the match required too
high diffuse value. Then I red the data page
http://www.graphics.cornell.edu/online/box/data.html and changed
the main surface color to white and adjusted other colors from there.
The diffuse value 0.75 came out from trial and error cycle. It can't
be a coincidence that it's pretty close to the maximum reflectance
of the white surface.

I was a bit worried that my pseudo-scientific approach would produce
information with limited usability but now I can say that the methods
in my previous post apply to all (indoor) scenes.

Next I test photons with this scene.
http://www.graphics.cornell.edu/online/box/measured.jpg

_______________________________________________________________________
Kari Kivisalo                                          www.kivisalo.net

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