[Radiance-general] Radiance 5.0 installation on ubuntu 14.04

[Humberto Antunes]

That process seems to be much easier and more time efficient i will do it
like that.

Thank you very much for the help.

Best regards
Humberto A.

2016-03-20 21:57 GMT+00:00 Greg Ward <gregoryjward at gmail.com>:

> You can achieve the same result as averaging output by repeating the
> points on your input and adding a corresponding -c N for rcontrib.
>
> If you already have the matrices, though, you can average them using
> rmtxop.  Let's say you have 3 matrices, you can use:
>
> rmtxop -s .33333 res1.mtx + -s .33333 res2.mtx + -s .33333 res3.mtx >
> avg.mtx
>
> Note that you would use a different scaling factor for more or fewer
> matrices.
>
> Cheers,
> -Greg
>
> *From: *Humberto Antunes <hs.antunes at campus.fct.unl.pt>
>
> *Subject: *Re: [Radiance-general] Radiance 5.0 installation on ubuntu
> 14.04
>
> *Date: *March 20, 2016 2:36:12 PM PDT
>
>
> I analyzed the data more carefully and the difference is not that big, I'm
> going to follow your advice and I'm going to create a script to run the
> simulation N times until the average of the final value starts to converge,
> this way i think I will get a very accurate value, do you think this is a
> good idea?
>
> Best regards
> Humberto A.
>
> 2016-03-20 1:30 GMT+00:00 Greg Ward <gregoryjward at gmail.com>:
>
>> Well, Radiance is a Monte Carlo simulation, which by default initializes
>> to a new point each time.  You can average together your results for
>> greater accuracy, but how much difference are you seeing?
>>
>> Cheers,
>> -Greg
>>
>> *From: *Humberto Antunes <hs.antunes at campus.fct.unl.pt>
>>
>> *Subject: *Re: [Radiance-general] Radiance 5.0 installation on ubuntu
>> 14.04
>>
>> *Date: *March 19, 2016 1:47:06 PM PDT
>>
>>
>> Ok I get it now, you can't imagine how helpful all that info had been.
>>
>> I had been running some tests and i saw something that is quite strange,
>> when i am creating my view matrix i use the following command "rfluxmtx -I+
>> -ab 12 -ad 50000 -lw 2e-5 -y 6 - < data/photocells.pts objects/window.rad
>> materials/testroom.mat objects/testroom.rad > results/photocells.vmx", if I
>> run the this command several times the output is always different, without
>> changing anything in the files or in the command, and this ends up creating
>> different work plane illuminances, do you have any idea on what is causing
>> this to happen?
>>
>> Best regards
>> Humberto A.
>>
>>
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