[Radiance-general] rtcontrib problems

[Ji Zhang]

Thanks, Andy! The script was still running when I woke up... So, I'll try
out your suggestion later.

Thanks, Greg! look forward to your new "rcontrib" program!

- Cheers, Ji



On Tue, Jun 12, 2012 at 2:11 AM, Greg Ward <gregoryjward at gmail.com> wrote:

> Coincidentally, I'm working now to improve the speed & efficiency of
> rtcontrib, especially for multi-processors.  If any Unix users are
> interested in trying it out, I've checked a working version into the HEAD.
>  The program is (temporarily) named rcontrib, to segregate it from its
> predecessor, but the options and operation should be identical.  Once it's
> fully tested, I plan to replace the existing rtcontrib with this new
> version, which has been substantially redesigned.
>
> Cheers,
> -Greg
>
> *From: *Andrew McNeil <amcneil at lbl.gov>
>
> *Date: *June 11, 2012 9:07:45 AM PDT
>
> *
> *
>
> Actually, the image generation part may take hours, but combining the
> patch images into a single image should take only a few minutes.
>
> Personally, I've never been able to get that pcomb based command to work,
> it seems to me that rcalc is waiting endlessly for input.  But you don't
> need to use pcomb to combine the images anymore, dctimestep provides a much
> more efficient option:
>
> cnt 146 | rcalc -e '$1=rand(recno);$2=rand(recno+.3);$3=rand(recno+.7)' | \
> dctimestep ./images/patches/p%03d.hdr > ./images/sky_colorcomb.hdr
>
> Andy
>
>
> On Mon, Jun 11, 2012 at 8:39 AM, Ji Zhang <hope.zh at gmail.com> wrote:
>
>> Thanks, John, I think I should press the button and go to sleep
>> un-frustrated now ... zzzzzzz
>>
>> - Ji
>>
>>
>>
>> On Mon, Jun 11, 2012 at 11:36 PM, John Sullivan <sulljoh1 at gmail.com>wrote:
>>
>>> On Problem 1: You are probably doing it right.  Creating the hdr images
>>> in Axel's tutorial on rtcontrib took us a couple of hours.
>>>
>>> -John
>>>
>>>
>>> On Mon, Jun 11, 2012 at 11:06 AM, Ji Zhang <hope.zh at gmail.com> wrote:
>>>
>>>> Sorry, just figured out that the source for Problem 2: the "-fo" option
>>>> should be added in addition to the "-ffc" and "-f" options
>>>>
>>>> the script should be:
>>>>
>>>>
>>>> vwrays -ff -x 600 -y 600 -vf ./views/back.vf \
>>>> |rtcontrib -ab 3 -ad 4096 -ar 256 -aa .1 -lw 0.0003 -n 2 \
>>>> -fo -ffc `vwrays -d -x 600 -y 600 -vf ./views/back.vf` -f tregenza.cal
>>>> -b tbin \
>>>>
>>>> -o ./patches_copy/p%03d.hdr -m sky_glow -w \
>>>> ./testroom_whitesky.oct
>>>>
>>>> - Ji
>>>>
>>>>
>>>>
>>>> On Mon, Jun 11, 2012 at 10:54 PM, Ji Zhang <hope.zh at gmail.com> wrote:
>>>>
>>>>> Dear list,
>>>>>
>>>>> I'm following Axel's tutorial on rtcontrib:
>>>>>
>>>>> http://www.jaloxa.eu/resources/radiance/documentation/docs/rtcontrib_lesson.pdf
>>>>>
>>>>> Problem 1:
>>>>> on page 16-17, I use the following script to generate the fisheye
>>>>> image for Tregenza sky patches in random colors:
>>>>>
>>>>> pcomb `for i in {000..145}; do \
>>>>> echo "-c $(rcalc -e \
>>>>> '$1=rand(recno);$2=rand(recno+.3);$3=rand(recno+.7)') \
>>>>> ./images/patches/p$i.hdr"; done` \
>>>>> > ./images/sky_colorcomb.hdr
>>>>>
>>>>> However, the script seems to run forever. Does it really need a long
>>>>> time to create the image, or Have I miss anything here?
>>>>>
>>>>>
>>>>> Problem 2:
>>>>> on page 17, I changed the script as suggested by changing the "-f"
>>>>> option to "-fo" to overwrite the existing hdr files:
>>>>>
>>>>> vwrays -ff -x 600 -y 600 -vf ./views/back.vf \
>>>>> |rtcontrib -ab 3 -ad 4096 -ar 256 -aa .1 -lw 0.0003 -n 2 \
>>>>> -ffc `vwrays -d -x 600 -y 600 -vf ./views/back.vf` -fo tregenza.cal -b
>>>>> tbin \
>>>>> -o ./patches_copy/p%03d.hdr -m sky_glow -w \
>>>>> ./testroom_whitesky.oct
>>>>>
>>>>> However, I got the following error message:
>>>>> rtrace: fatal - command line error at 'tregenza.cal'
>>>>> rtrace: fatal - command line error at 'tregenza.cal'
>>>>>
>>>>> Can anybody help to advise what the options for rtcontrib I should use
>>>>> here?
>>>>>
>>>>>
>>>>> Thanks!
>>>>> - Ji
>>>>>
>>>>
>
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