[Radiance-general] Three Phase Method Tutorial - Example 1

[Andy McNeil]

Alireza,

I suspect your first error stems from an unexpected or missing header. Can
you open your daylight matrix and sky vector in notepad and respond with
the first 10 lines in each file?

The second tutorial that you've found is meant to replace the old tutorial,
but I've not finished it yet so there may be some inconsistencies.  Can you
email the comment line of your window.rad file (the one that starts
#@rfluxmtx) as this is where the sampling basis is specified.

Andy



On Mon, Nov 30, 2015 at 6:41 PM, Alireza Hashemloo <alireh at uw.edu> wrote:

> Hi Greg,
>
> Thank you for your response.
>
> I am working on a Windows 7 (64-bit) operating system and I use GitBash
> shell for my command line.
> Following the description of the two error messages relative to the two
> versions of the Three-Phase Method tutorial, I have provided the exact
> command line raising the errors
> in the Example #1 of both tutorials:
>
> 1- Tutorial Document Title: "The Three-Phase Method for Simulating Complex
> Fenestration with Radiance"
>     Access Link:
> http://www.radiance-online.org/learning/tutorials/Tutorial-ThreePhaseMethod.pdf
>     Page # 21
>     Command:    $ dctimestep images/vmx/window_%03d.hdr
> data/singleclear.xml results/south.dmx skies/12_21_15.skv >
> images/122115_clear.hdr
>     Error: "fatal - unexpected EOF reading results/south.dmx"
>
> 2- Tutorial Document Title: "Radiance Three Phase Method Tutorial"
>     Access link:
> https://www.gitbook.com/book/andymcneil/three-phase-method-tutorial/details
>     Page # 21
>     Command:  $ vwrays -fa -vf views/back.vf -x 600 -y 600 | rfluxmtx
> `vwrays -vf views/back.vf -x 600 -y 600 -d` -n 8 -fac -ab 12 -ad 50000 -lw
> 2e-5 - objects/window.rad materials/testroom.mat objects/testroom.rad
>     Error: "C:\Radiance\bin\rfluxmtx.exe: missing hemisphere sampling
> type!"
>
> I hope the referenced commands would help to give a better description of
> how the errors are raised.
> Please let me know if you need any further information.
>
> Thank you,
> Alireza
>
> On Mon, Nov 30, 2015 at 9:40 AM, Greg Ward <gregoryjward at gmail.com> wrote:
>
>> Hi Alireza,
>>
>> There have been a few changes to the programs since this tutorial was
>> written.  It would help to know what system you are on (esp. if Windows)
>> and the exact commands you used leading up to the error.
>>
>> Cheers,
>> -Greg
>>
>> *From: *Alireza Hashemloo <alireh at uw.edu>
>>
>> *Subject: *[Radiance-general] Three Phase Method Tutorial - Example 1
>>
>> *Date: *November 30, 2015 1:04:14 AM PST
>>
>>
>> Hello,
>>
>> I have a couple of questions with regards to the three-phase method
>> tutorials:
>>
>> 1- Following the Example 1 in the tutorial document titled as "The
>> Three-Phase Method for Simulating Complex Fenestration with Radiance"
>> (available at
>> http://www.radiance-online.org/learning/tutorials/Tutorial-ThreePhaseMethod.pdf)
>> I have encountered the following error message using the dctimestep (page
>> 21) to generate a rendering:
>>
>> "fatal - unexpected EOF reading results/south.dmx"
>>
>> I have checked the content of the south.dmx file generated in the
>> previous steps and it appears that with the exception of the first 9 lines
>> providing information such as the Format, Software, Capdate etc, the
>> remaining of the lines contain NULL values. This is despite the fact that I
>> have not received any error messages following the Example 1 through each
>> step prior to this last step where the EOF error is raised.
>>
>> 2- There is another document titled as "Radiance Three Phase Method
>> Tutorial" (also by Andy McNeil) which I could not find on the Radiance
>> website but it it published via GitBook at the following link:
>>
>>
>> https://www.gitbook.com/book/andymcneil/three-phase-method-tutorial/details
>>
>> Following the Example 1 of this new tutorial document, the 'rcontib' call
>> is replaced with 'rfluxmtx' to create the view matrix renderings. I have
>> also attempted to pursue this example step by step, however, the call for
>> the 'rfluxmtx' for generating view matrix renderings (page 21) raises the
>> following error message:
>>
>> "missing hemisphere sampling type"
>>
>> I have checked the 'rfluxmtx' document describing the application of a
>> "#@rfluxmtx variable=value" form to pass the sampling basis (eg. h=kf for
>> full Klems sampling model). However, I could not find the correct syntax to
>> add this variable to the rfluxmtx command call in the tutorial (page 21) in
>> response to the "missing hemisphere sampling type" error.
>>
>>
>> I would appreciate if you could help me with these two questions.
>>
>> Thank you,
>> Alireza
>>
>>
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>>
>>
>
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