Chris Huff <chr### [at] maccom> wrote:

> 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.

So with a portal object and the pass through, I could get such a light, but
that would only cast one way, and I'm not sure about the effects on
radiosity.

Anyway, when's the patch going to be available? ;)


>> > 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...

Really slow.

Geoff

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