Tom Melly wrote:
> 
> With the camera and light above the following boxes, BoxA shows up as white
> media, which is what I expected, but BoxB shows up as black - why is this?
> After all, if you are looking down at a cloud from an airplane, beyond a
> certain point the actual physical thickness of the cloud is not
> particularily significant (is it?).

Since no one else appears interested in answering your question, and I have
no informed answer for you myself, I will simply guess that the thicker
media container in example 2 will require a greater number of samples to
get similar results.

You didn't help much by not telling us what "Plain_White_Scattering_Media"
is either.


-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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