Vincent Le Chevalier wrote:
> of what their contribution is. For example, no path such as Light
> source<->diffuse surface<->diffuse surface<->camera are ever created.

I see!  Thank you.

> since you know that the picture will eventually be physically
> correct, 

"Physically correct."  You keep using that word.  I do not think it 
means what you think it means.  :-)

Seriously, "physically correct" would mean it accounts for polarized 
surfaces and handles interference fringes and diffraction, and traces 
the rays of light from the light source to the camera, rather than 
starting at the camera. :-)

-- 
   Darren New / San Diego, CA, USA (PST)
     Remember the good old days, when we
     used to complain about cryptography
     being export-restricted?

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