Cousin Ricky nous illumina en ce 2008-05-18 12:27 -->
> The blue and gold are my high school alma mater's colors.  Sorry, no kitchen
> probe.
> 
> Lessons learned:
> 
> - Higher order polynomials are very sensitive to floating point error.  Use
>   isosurfaces instead.
> 
> - Isosurfaces are slow.  Use higher order polynomials instead.
> 
> - Counterintuitively, applying split_union off to the entire object slowed
>   down rendering by an order of magnitude.
> 
> - Applying split_union off to Round_Box_Union and Round_Cylinder_Union (and
>   to similar custom-written macros) cut rendering times in half.
> 
> - Area_light can be interminable.  This image was first rendered without
>   area lights.  The shadows of the handle and reflective sphere were done
>   in partial renders, then patched into the main image.
You realy need to add "adaptive" to your area_light. It will greatly improve 
your rendering time.
Start with adaptive 0, and increase it if you get artefacts.
With adaptive 0, it's beter to use some specific array samples: 5x5, 9x9, 17x17, 
33x33, 65x65,... this due to the way the adaptive sampling is conducted. If you 
use a treshold larger than adaptive 0, start with the next value in the list.
> 
> 
> 
> ------------------------------------------------------------------------
> 
Very nice twist on an old cliché.

-- 
Alain
-------------------------------------------------
Does the name Pavlov ring a bell?

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