In article <3a956b79@news.povray.org>, Geoff Wedig 
<wed### [at] darwinepbicwruedu> wrote:

> Ok, now I'm confused.  Does that mean light only exists after the object,
> that the light rays don't exist in the space between light and object, but
> come from the object?

Exactly. All areas that would be in the shadow of the projected_through 
object are illuminated. You would just use a copy of the portal object 
as the projected_through object, and transform copies of the necessary 
light_sources to appear through the portal object as if they were on the 
other end.


> > The ordinary focal blur should work fine, though...it would just make 
> > your scene even slower.
> 
> Yeah, and I've found that the sampling menthods don't give good results,
> IMO.  But maybe for a final render with *lots* of samples...

You can almost eliminate the grainyness if you use the right settings, 
but it is slow...

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

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