[Radiance-general] time need independent from number of faces?

Greg Ward gregoryjward at gmail.com
Tue May 17 00:12:01 CEST 2005


The ray-tracing time in Radiance is only weakly affected by the  
number of surfaces, thanks to the octree spatial subdivision.  I  
would expect the calculation time to increase with representation,  
but very slowly.  (That's why you can render scenes with millions of  
surfaces.)

-Greg

> From: "Despina Michael" <despina_m81 at hotmail.com>
> Date: May 16, 2005 12:08:08 PM PDT
>
> Hi all,
> I have a question about time needed to illumintate scene in radiance?
>
> I modeled a simple cube, but i created many models of that with  
> different number of polygons.
> The simples cube has 12 polygons (6 faces) and the most complex has  
> about 5000 polygons.
>
> For all different models that represent exactly the same cube, it  
> tooks about 4 minutes to be illuminated (leaving all other  
> parameters the same).
>
> Why is that? Does this make sense?
>
> Thank you!
> Despina
>



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