[Radiance-general] Re: Re: Problem with big pictures

[Greg Ward]

Hi Martin,

Now that you mention it, I think this is not a bug in rpiece, but a bug 
I fixed in the expression evaluation code.  After 2^32 evaluations, the 
expression clock was wrapping and causing expression results to go stale 
(expressions are anything from a .cal file, including picture mapping 
coordinates and sky functions).  This would have the effect you noticed 
on large pictures, but wouldn't affect shorter renderings.

This bug has been fixed in version 3.4, and you should rerun your 
simulation with the new version to check if the problem goes away.  Be 
sure to pick up the 3.4.1 patch release while you're at it.

-Greg


> From: Martin Klingler <mkli@netway.at>
> Date: Fri Apr 12, 2002  04:52:21 AM US/Pacific
> To: gward@lmi.net
> Subject: AW: Re: Problem with big pictures
>
> Hi Greg,
>
> attached you find the picture file and also the result of the diff 
> between the version I use und 3.4.
> Do you really think that is has to do with rpiece. I get a simmilar 
> error, loss of illumination and picture mapping, if I do the same 
> pictue on one computer just with rpict.
>
> Best regards
> Martin