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

> In article <3a955c4d@news.povray.org>, Geoff Wedig 
> <wed### [at] darwinepbicwruedu> wrote:

>> Is the projected_through available now? 

> It's been around since the Superpatch days, I think.


>> Last I heard, portals only did a pigment, no light through the portal 
>> or photons or such.  Has it progressed, then?

> No, the projected_through feature has nothing to do with the portal 
> patch, it is a light_source feature that allows you to "project" light 
> through an object, making light shine through the object.

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?


>> One disadvantage that I noticed last night is that I can't use focal 
>> blur (post process), because only the summer side gets blurred.  The 
>> winter side is all at the mirror distance, rather than its 'true' 
>> distance, so doesn't get appropriately blurred.  On the other hand, a 
>> portal would have the opposite problem, with only the winter side 
>> blurring.

> 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...

Geoff

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