[Radiance-general] Rtcontrib/tregsamp.dat

[George Makrythanasis]

>> Dear all,
>>
>> I was looking the rtcontutor example of the Radiance 2006 Workshop  
>> and the examples of the R3.8. I have a question for the
>> second pass of rtcontrib. If I understand correctly, the input for  
>> rtcontrib is the tregsamp.dat
>> file but modified by rcalc. The modofication applies to the rays  
>> origin which from 0,0,0 I think
>> that they are distributed 1.7m off the facade of the building. It  
>> looks that the directions
>> remain the same. In adittion, if one tries to actually plot the  
>> file it looks that all these rays are directed to the facade of the  
>> building.
>>
>>
>> The description for this step within the readme file was "The  
>> second stage computes the incidence of sky
>> illumination on these portholes, and the results are combined".
>>
>> Could somebody throw a little bit of light on this step as I can  
>> not figure out the logic behind. Hopefully,
>> I have not misunderstood what's going on and this email does make a  
>> bit of sense.
>>
>> Cheers,
>>
>> George
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