different results for one situation

hi guys,

when I run daylight simulation one more time without changing the input data, I got different results.

as shown here, these are three different results of one situation, that I ran immediately after each other with no changes. this seems strange to me.

thank you in advance for telling me whats wrong about it.

-masoumeh

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Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on December 9, 2015 at 8:55am

It's normal specially if Radiance parameters are set low. Search Grasshopper for "Stochastic Radiance" and you will find similar discussions.

Permalink Reply by masoumehta on December 9, 2015 at 9:29am

thank you mostafa, learning this "Stochastic Sampling" was intresting for me!

Permalink Reply by Claudio Marini on December 10, 2015 at 5:00am

Hi Mostapha,

I found out on another forum that it's possible to add a -u to the Radiance string in order to turn off the stochastic randomness. Is it possible to do it with HoneyBee as well?
I tried to put the "-u" into the _additionalIP input but it doesn't work.

Thanks in advance,
Claudio

Permalink Reply by Mostapha Sadeghipour Roudsari on December 10, 2015 at 10:45am

Hi Claudio,

Definitely a limitation on our side. Radiance parameters only works for parameters that has a value to be set. Let me see what would be the best way to implement it to Honeybee RADParameters. I'll keep you posted.

https://github.com/mostaphaRoudsari/Honeybee/issues/433

Permalink Reply by Mostapha Sadeghipour Roudsari on December 12, 2015 at 6:55pm

Hi Claudio,

I added the functionality. Now you can add other additional parameters such as -u, -bv, -dv and -w. Give it a try and let me know if it works as expected.

Cheers,

Mostapha

Permalink Reply by Claudio Marini on December 14, 2015 at 7:57am

Hi Mostapha,

After a very short test I would say that it works fine. I'll let you know if I'll find bugs in the future. Thanks for adding it. I run optimization processes and it's good to be able to turn ON/OFF the randomness.

Now we're able to close quickly the discussions like this one, started by masoumehta, just with a symple "it's Radiance randomness, just put a -u". And give a solution to people that struggle with it.

Regards,
Claudio

Permalink Reply by Farzane Oghazian on August 18, 2016 at 12:06am