[Radiance-general] partly covered source

[Jan Wienold]

hi giulio,

Yes!
The use of -dj helped, but only if I use also the -u option. Otherwise I 
still get randomized zero values, also if I change -ds.

thanks!

jan




On 07/24/2012 01:35 AM, giulio antonutto wrote:
> Jan,
> maybe you can fix it with -dj and oversampling?
> G
>
> On 24 Jul 2012, at 00:03, Jan Wienold wrote:
>
>> Hi all,
>>
>> I just encountered a strange different behavior between rtrace and rpict:
>> If the sun ( using "source") is  covered in large parts (in that case more than half) I can still "see" the uncovered parts in the image (=>this is what I expect). In case I calculate at the same point and in the same direction the illuminance with rtrace -I, I get zero contribution.  Is just the center of the source description tested in that case? Any solution for this for rtrace?
>> I just look for the sun, no sky description and use only direct calculation (-ab 0) .
>>
>> Thanks,
>>
>> Jan
>>
>>
>>
>> -- 
>> Dr.-Ing. Jan Wienold
>> Head of Team Passive Systems and Daylighting
>> Fraunhofer-Institut für Solare Energiesysteme
>> Thermal Systems and Buildings
>> Heidenhofstr. 2, 79110 Freiburg, Germany
>> Phone: +49(0)761 4588 5133 Fax:+49(0)761 4588 9133
>> jan.wienold at ise.fraunhofer.de
>> http://www.ise.fraunhofer.de
>>
>> In office:
>> Mo,Tue: 8:30-18:00
>> We,Thu: 8:30-16:00
>> Fr:  8:30-15:30
>>
>>
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>
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-- 
Dr.-Ing. Jan Wienold
Head of Team Passive Systems and Daylighting
Fraunhofer-Institut für Solare Energiesysteme
Thermal Systems and Buildings
Heidenhofstr. 2, 79110 Freiburg, Germany
Phone: +49(0)761 4588 5133 Fax:+49(0)761 4588 9133
jan.wienold at ise.fraunhofer.de
http://www.ise.fraunhofer.de

In office:
Mo,Tue: 8:30-18:00
We,Thu: 8:30-16:00
Fr:  8:30-15:30