"Nathan Kopp" <nat### [at] koppcom> wrote in message
news:3ba683ef$1@news.povray.org...
>
> "Warp" <war### [at] tagpovrayorg> wrote...
> >   When testing my glow macro I found another shadow line problem caused
by
> >   Note that making the light sources area light doesn't smooth the
shadow
> > line, and this is a true deficiency in povray. Povray performs area
light
> > calculations for shadow testing, but not for normal-is-away-from-light
> tests.
>
> From section 6.5.7.5 of the POV 3.5 docs:
> "Rather than performing the complex calculations that would be required to
> model a true area light, it is approximated as an array of point light
> sources spread out over the area occupied by the light. The array-effect
> applies to shadows only. The object's illumination is still that of a
point
> source."
>
> Maybe somebody will code area-light highlights for POV 4 sometime in the
> future.

   Ooooh!  PoV 4. Can't wait...   :o)

     ~Steve~  ;)





>
> -Nathan
>
>
>

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