[Radiance-general] Bad call to SDqueryTreProjSA for BSDF

[Greg Ward]

This was a bug that is rarely encountered, and has been fixed in the HEAD release with Lars' help.

Cheers,
-Greg


> From: "Lars O. Grobe" <grobe at gmx.net>
> Subject: Re: [Radiance-general] Bad call to SDqueryTreProjSA for BSDF
> Date: November 19, 2017 1:43:14 PM PST
> 
> Dear Greg,
> 
> thank you, this has solved the issue!
> 
> Cheers, Lars.
> 
> 17.11.17 at 16:53 Greg Ward wrote:
>> Hi Lars,
>> 
>> I had a look at the code, and realized there is a case where a BSDF that is zero in a neighborhood could generate this error.  Try the attached version of src/rt/m_bsdf.c and tell me if it gets rid of your error.  The number of processes shouldn't be a factor.
>> 
>> Cheers,
>> -Greg
>> 
>>> From: "Lars Grobe" <grobe at gmx.net>
>>> Date: November 17, 2017 5:26:07 AM PST
>>> 
>>> Dear all,
>>>  
>>> I am getting the above error when rendering an image with rpiece/rpict on many cpu cores. The ambient cache is used (e.g. no -aa 0). Is it possible that this is due to multiple processes interfering (I am running 38 in parallel...)? Or is the BSDF the primary suspect in this case?
>>>  
>>> I updated to the latest head release as of today, but the error just occured again.
>>>  
>>> Right now I am trying out with fewer (18) processes, but this will obviously take some time befor I can confirm any effect.
>>>  
>>> Cheers,
>>> Lars.
>>> 
> 
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