[Radiance-general] rtcontrib and ambient cache

[Greg Ward]

Hi Rob,

I found the problem.  It has to do with your -ad 1536 value and the  
way I'm computing weights, which causes the ambient rays to drop  
below your -lw threshold.  I made a temporary fix that circumvents  
the problem in this case, but I haven't checked it into CVS because I  
need to think more carefully about how I'm computing ray weights in  
this part of the code.  I'll check it in when I'm sure I have it  
right this times.

Thanks -- you're my alpha alpha tester!
-Greg

> From: "Rob Guglielmetti" <rpg at rumblestrip.org>
> Date: May 27, 2005 9:11:59 PM PDT
>
> Hi Greg,
>
> I did like you asked, and the only thing that stuck out was the -ab  
> 1 as a
> possible culprit, so I reran it with -ab 3, but I get the same result.
> It's a room with two downlights, and even with -ab 3 there is no  
> light on
> the ceiling with the differential pics.  So I dumped the -defaults  
> to a
> text file for you, and will send it (along with some renderings) to  
> you in
> a separate email.
> -- 
> Rob Guglielmetti
>