In article <3A86D4FF.8DE99766@vip.cybercity.dk>, Hugo 
<cfp### [at] vipcybercitydk> wrote:

> And now, computer speed has reached gigahertz measurements. It's time to
> rewrite raytracers to use "real" formulas. Especially for lighting.

What exactly do you mean? Spectral color calculations instead of RGB 
based ones? Physically based BRDF functions? Physically accurate 
lighting calculations (polarization, dispersion, diffraction, etc...)?

If you want "correct" results using "real" equations, you will have to 
use "real" parameters and settings, and probably a new way of specifying 
texture and interior...and the result would not be fast and may not 
really be easier to use. And you would also have to find someone with 
the knowledge and time to write it all...

As it is, POV can produce extremely realistic looking images, and with a 
few additions could be improved further...there isn't any need to use 
completely accurate equations everywhere or simulate every lighting 
effect. That would just slow things down and get in the way of people 
who just want to make "pretty pictures".

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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