In article <3aabe409$1@news.povray.org>, "John M. Dlugosz" 
<joh### [at] dlugoszcom> wrote:

> A glass object's shadow is totally black
> (http://green.dlugosz.com/files/photon_try_1.jpg ).  Why is this,

It happens because almost all light is being refracted away from those 
areas.


> and how can I get the shadow lighter?

Use radiosity to get indirect illumination from surrounding objects and 
that media glow in the middle, and/or use more light sources to 
illuminate the shadows.

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

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