[Radiance-general] Re: Problem with big pictures

Fri, 26 Apr 2002 06:38:07 -0700

Great -- I'm very relieved that this was the problem.

-Greg

Begin forwarded message:

> From: Martin Klingler <[email protected]>
> Date: Fri Apr 26, 2002  05:25:26 AM US/Pacific
> To: [email protected]
> Subject: AW: Re: Re: Problem with big pictures
>
> Hi Greg,
>
> thanks a lot, that was the problem.
> It took me quite a long time to update my production system, but now 
> the first rendering just finished after 50 hours and it looks fine.
>
> Best regards
> Martin
> ----------------------------------------------------------------
> Lichttechnik Martin Klingler
> Kaplanstrasse 2
> A-6063 Rum/Innsbruck
> Tel ++43-512-206057
> Fax ++43-512-206047
> email [email protected]
>
>   -----Urspr�ngliche Nachricht-----
>   Von: [email protected]
>   An: Klingler Martin
>   Datum: 12.04.2002 19:40:28
>   Betreff: Re: Re: Problem with big pictures
>
> 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 <[email protected]>
>> Date: Fri Apr 12, 2002  04:52:21 AM US/Pacific
>> To: [email protected]
>> 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
>
>