(no subject)

radiance-daysim
21

Thanks Greg, Casper!

Really excited seeing cd/m2 values coming from an .jpg image.
I'm interested in finding out what the value of my backlight is (600 cd/m2 photosphere tells me).
Does that seem reasonable? Isn't that perhaps a little low of 4* 18 watt tube lights ( they're old… )?
I just read in the HDRI book that your hdr viewer has 5000 cd/m2? Pretty impressive..

Cheers,

-jelle

22

Could be reasonable. In a diffuse transmission situation I think it should be Luminance (cd/m2) = Back Face Incident Flux (lm/m2) * Diffuse Transmission (\) / Pi\.\.\. if your 18W CFL have degraded to 1000 lumens each then 4 \* 1000 / 1 m2 \* 50 / Pi = 636 cd/m2. Maybe your light box is smaller than 1 m2 but the diffusing surface is probably less than 50% transmission.

Ideally you should try to find a luminance meter you can use to verify your camera calibration in photosphere.

···

I'm interested in finding out what the value of my backlight is (600 cd/m2 photosphere tells me<http://jelleferinga.com/files/P1040667.jpg&gt;\).
Does that seem reasonable? Isn't that perhaps a little low of 4* 18 watt tube lights ( they're old... )?

____________________________________________________________
Electronic mail messages entering and leaving Arup business
systems are scanned for acceptability of content and viruses

23

Hi community,
in Radince Tutorial given in this site : http://www.jaloxa.eu/resources/radiance/documentation/docs/radiance_tutorial.pdf
and in page 28, after creating scene.oct, I try to make : rvu -vf views/nice.vf scene.oct but i have this message : cannot open view file "view/nice.vf", so how to create a file nice.vf and what are its parameters?
thank you
Imène

···

___________________________________________________________
Cuisine, salon, chambre enfant… Les promos pour changer votre mobilier sont sur Voila.fr http://shopping.voila.fr/vitrine/meubles

24

Imene

Please download the related course files from this URL:

http://www.jaloxa.eu/resources/radiance/documentation/docs/radfiles_tutorial.zip

The file nice.vf is included.

Regards

···

On Tue, Jul 17, 2012 at 7:49 AM, <[email protected]> wrote:

Hi community,
in Radince Tutorial given in this site :
http://www.jaloxa.eu/resources/radiance/documentation/docs/radiance_tutorial.pdf
and in page 28, after creating scene.oct, I try to make : rvu -vf
views/nice.vf scene.oct but i have this message : cannot open view file
"view/nice.vf", so how to create a file nice.vf and what are its parameters?
thank you
Imène

------------------------------
Cuisine, salon, chambre enfant… Les promos pour changer votre mobilier
sont sur Voila.fr <http://shopping.voila.fr/vitrine/meubles&gt;
_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

25

Hi-

I am giving a presentation about "what radiance is" to a non-technical
audience in a few days from now, and it came to my attention while making
the presentation...I don't know how Radiance is supported!

Does anyone have a standard sound byte about how Radiance is maintained and
funded? Is it via donation only, or through NREL or other?

Thanks. I hope I haven't opened up a huge can of worms. But I am curious
for my own professional reasons as well.

Thanks,
Chien

26

Chien,
I see that this post is over a month old, apparently it was trapped in the
mailing list jail.

Radiance is developed primarily by Greg Ward, via a part-time contract with
LBNL. In good years LBNL receives meager funding for Radiance from the US
Department of Energy and/or California Energy Commission. In bad years
Greg has provided support without recieving anything in return. There have
also been some people that have paid Greg directly to develop new features.

Maybe we should add a full list those who have provided funds at
radiance-online.org.

Andy

···

On Wed, May 15, 2013 at 12:16 PM, Chien Si Harriman < [email protected]> wrote:

Hi-

I am giving a presentation about "what radiance is" to a non-technical
audience in a few days from now, and it came to my attention while making
the presentation...I don't know how Radiance is supported!

Does anyone have a standard sound byte about how Radiance is maintained
and funded? Is it via donation only, or through NREL or other?

Thanks. I hope I haven't opened up a huge can of worms. But I am curious
for my own professional reasons as well.

Thanks,
Chien

_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general

27

hi
I have used a kind of translucent fabric in my project that i need to know its definition as a radiance material to use in my analysis

i have some characteristic of the fabric like solar transmittance(Ts) =18%,solar reflection(Rs) =61% ,solar absorption(As)=21%,normal -hemispherical light transmission(TV ,n-h)=17% ,normal-normal light transmission(TV, n-n)=14%
external solar factor=0.13 internal solar factor=0.37

how can I define it using above data?
I need the following numbers:

···

void trans fabric >0 >0 >7 ? ? ? ? ? ? ?

28

Hi Mona,

This should be in a FAQ, but I'm not sure where to point you. Maybe someone else can help with that. Meanwhile a search on "trans" from:

  http://www.radiance-online.org/community/mailing-lists/search-1

will give you a bunch of useful hits. If you can't figure it out, let us know.

-Greg

···

From: Mona Sendi <[email protected]>
Date: September 27, 2013 3:37:03 AM PDT

hi
I have used a kind of translucent fabric in my project that i need to know its definition as a radiance material to use in my analysis
i have some characteristic of the fabric like solar transmittance(Ts) =18%,solar reflection(Rs) =61% ,solar absorption(As)=21%,normal -hemispherical light transmission(TV ,n-h)=17% ,normal-normal light transmission(TV, n-n)=14%
external solar factor=0.13 internal solar factor=0.37

how can I define it using above data?
I need the following numbers:

> void trans fabric
> 0
> 0
> 7 ? ? ? ? ? ? ?

29

Dear Radiance users:
I ran into a rendering error and hope someone can help me out.
I want to explain my procedure first. My apologies if this message is much
too long ...
I built the model in DIVA and exported the model into .obj.
Then I used obj2rad to convert the model and created the material file
accordingly.
After that, I used oconv to create the .oct file and used rvu for
rendering.
Meanwhile, for the sky model, I tried several examples from Rendering with
Radiance, for instance $gensky 7 1 12 +i -a 37.97 -o -23.50 -m -30.
However, the results don't look right. The results only show direct
sunlight without diffuse light, I speculate that there is something wrong
with my model that influences the sky model. I am sharing my model,
material, and view files below.
Please help me to solve the issue.
As always, thak you all.

​
material.data
<https://drive.google.com/file/d/0B3nNeoPjrTjYNEdLVzdyZV9IWkU/view?usp=drive_web>
​​
model.rad
<https://drive.google.com/file/d/0B3nNeoPjrTjYRTNSS3czLWpYbzg/view?usp=drive_web>
​​
sky.rad
<https://drive.google.com/file/d/0B3nNeoPjrTjYTW53M05FNk9lNVU/view?usp=drive_web>
​​
southview.vf
<https://drive.google.com/file/d/0B3nNeoPjrTjYZGVwMmNHQlotdGM/view?usp=drive_web>
​

···

--
*Zhe Kong*
*PhD Student*
*University of Wisconsin - Milwaukee *
*School of Architecture and Urban Planning *
*2131 E. Hartford Ave, Milwaukee, WI 53211 *
*Office 327*

30

Hi

Apparently the sky vault is missing in the sky.rad file.
You just need to add the following lines:

skyfunc glow sky_glow
0
0
4 0 0 1 180

Raphaël

···

________________________________
De : Zhe Kong [[email protected]]
Envoyé : dimanche 24 juillet 2016 23:16
À : [email protected]
Objet : [Radiance-general] (no subject)

Dear Radiance users:
I ran into a rendering error and hope someone can help me out.
I want to explain my procedure first. My apologies if this message is much too long ...
I built the model in DIVA and exported the model into .obj.
Then I used obj2rad to convert the model and created the material file accordingly.
After that, I used oconv to create the .oct file and used rvu for rendering.
Meanwhile, for the sky model, I tried several examples from Rendering with Radiance, for instance $gensky 7 1 12 +i -a 37.97 -o -23.50 -m -30. However, the results don't look right. The results only show direct sunlight without diffuse light, I speculate that there is something wrong with my model that influences the sky model. I am sharing my model, material, and view files below.
Please help me to solve the issue.
As always, thak you all.

​
[https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png] material.data<https://drive.google.com/file/d/0B3nNeoPjrTjYNEdLVzdyZV9IWkU/view?usp=drive_web>
​​
[https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png] model.rad<https://drive.google.com/file/d/0B3nNeoPjrTjYRTNSS3czLWpYbzg/view?usp=drive_web>
​​
[https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png] sky.rad<https://drive.google.com/file/d/0B3nNeoPjrTjYTW53M05FNk9lNVU/view?usp=drive_web>
​​
[https://ssl.gstatic.com/docs/doclist/images/icon_10_generic_list.png] southview.vf<https://drive.google.com/file/d/0B3nNeoPjrTjYZGVwMmNHQlotdGM/view?usp=drive_web>
​
--
Zhe Kong
PhD Student
University of Wisconsin - Milwaukee
School of Architecture and Urban Planning
2131 E. Hartford Ave, Milwaukee, WI 53211
Office 327

31

And be sure that you use the parameter -ab to set the number of ambient bounces if you're running commands yourself. The sky vault source that Raphael mentions is only considered in the ambient calculation. Higher values for -ab (within the range of usually 2 to 6 or maybe more) increases accuracy wherever reflections between surfaces are important.

···

-----Original Message-----
From: Compagnon Raphaël [mailto:[email protected]]

Hi

Apparently the sky vault is missing in the sky.rad file.
You just need to add the following lines:

skyfunc glow sky_glow
0
0
4 0 0 1 180

Raphaël

________________________________
De : Zhe Kong [[email protected]]

However, the results don't look right. The results only show direct sunlight without diffuse light, I speculate that there is something wrong with my model that influences the sky model. I am sharing my model, material, and view files below.

32

I've set up new mailing lists on radiance-online.org for DAYSIM
(radiance-daysim) and OpenStudio (radiance-openstudio). This email is a
test of the radiance-openstudio mailing list.
I've manually subscribed a few individuals (if you're getting this first
message, you've been manually subscribed).
Users will be able to subscribe themselves by going to
http://www.radiance-online.org/community/mailing-lists

Andy

33

Hi all
I did try to run radiance in openstudio 9.
However, the simulation did stop. I think this problem is due to how I did the settings
of RAYBATH and PATH in “Environment Variables” .....
I did try to
follow the instructions in 'Getting started with Radiance https://openstudio.nrel.gov/getting-started-developer/getting-started-radiance,
put still I did not succeed in running radiance.
I did attach a
picture which shows i did the settings and location of radiance folder in my
PC, and the way i use it to check the
version of Ruby that you I'm using.
I appreciate any advice regarding solving this problem
Thanks

Picture 1.png1045×640 109 KB

34

A couple of quick things to try:

1. Download the latest version of the Radiance installer (I can tell you're using an older version because you don't have the documentation installed)
2. For your PATH, you should add '$PATH' and '.' to that entry. The former makes sure to add any predefined PATH elements to your additions, the latter includes the current working directory in your path.

Try those, and then let me know if you still have problems. If you do, can you post details about the specific errors you're seeing?

Thanks,

Rob

Rob Guglielmetti
National Renewable Energy Laboratory (NREL)
Commercial Buildings Research Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

···

On 10/13/12 3:15 PM, "KXZ7007 ......" <[email protected]<mailto:[email protected]>> wrote:

Hi all
I did try to run radiance in openstudio 9. However, the simulation did stop. I think this problem is due to how I did the settings of RAYBATH and PATH in “Environment Variables” .....
I did try to follow the instructions in 'Getting started with Radiance https://openstudio.nrel.gov/getting-started-developer/getting-started-radiance, put still I did not succeed in running radiance.
I did attach a picture which shows i did the settings and location of radiance folder in my PC, and the way i use it to check the version of Ruby that you I'm using.
I appreciate any advice regarding solving this problem
Thanks

35

Hello Rob and everyone in this list

I am having the same problem running the ruby file to convert the osm file
to radiance format, when I type ModeltoRad.rb on the folder where this file
is located i receive the following message:

C:/Program Files/OpenStudio
0.9.0/Ruby/openstudio/radiance/ModelToRad.rb:45:in `
require': no such file to load -- openstudio (LoadError)
        from C:/Program Files/OpenStudio
0.9.0/Ruby/openstudio/radiance/ModelToR
ad.rb:45

Apart from that, the ModeltoRad.rb is not working outside the specific
folder

Any suggestions?

Thank you in advance

Sotiris

···

2012/10/17 Guglielmetti, Robert <[email protected]>

A couple of quick things to try:

1. Download the latest version of the Radiance installer (I can tell
you're using an older version because you don't have the documentation
installed)
2. For your PATH, you should add '$PATH' and '.' to that entry. The
former makes sure to add any predefined PATH elements to your additions,
the latter includes the current working directory in your path.

Try those, and then let me know if you still have problems. If you do, can
you post details about the specific errors you're seeing?

Thanks,

Rob

Rob Guglielmetti
National Renewable Energy Laboratory (NREL)
Commercial Buildings Research Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

On 10/13/12 3:15 PM, "KXZ7007 ......" <[email protected]<mailto: > [email protected]>> wrote:

Hi all
I did try to run radiance in openstudio 9. However, the simulation did
stop. I think this problem is due to how I did the settings of RAYBATH and
PATH in “Environment Variables” .....
I did try to follow the instructions in 'Getting started with Radiance
OpenStudio,
put still I did not succeed in running radiance.
I did attach a picture which shows i did the settings and location of
radiance folder in my PC, and the way i use it to check the version of Ruby
that you I'm using.
I appreciate any advice regarding solving this problem
Thanks

_______________________________________________
Radiance-openstudio mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-openstudio

36

Hi,

You may look at this example format: "Ruby
"/path/to/ModelToRad/ModelToRad.rb" "/path/to/your/OSM"
"/your/path/to/sql" --month 5 --day 15 --dc --dcts --z

Make sure use quote in Window OS file path if there is blank in between.

Thanks,

Jia

···

On Wed, Oct 24, 2012 at 6:20 PM, Σωτήρης Παπαντωνίου <[email protected] > wrote:

Hello Rob and everyone in this list

I am having the same problem running the ruby file to convert the osm file
to radiance format, when I type ModeltoRad.rb on the folder where this file
is located i receive the following message:

C:/Program Files/OpenStudio
0.9.0/Ruby/openstudio/radiance/ModelToRad.rb:45:in `
require': no such file to load -- openstudio (LoadError)
        from C:/Program Files/OpenStudio
0.9.0/Ruby/openstudio/radiance/ModelToR
ad.rb:45

Apart from that, the ModeltoRad.rb is not working outside the specific
folder

Any suggestions?

Thank you in advance

Sotiris

2012/10/17 Guglielmetti, Robert <[email protected]>

A couple of quick things to try:

1. Download the latest version of the Radiance installer (I can tell
you're using an older version because you don't have the documentation
installed)
2. For your PATH, you should add '$PATH' and '.' to that entry. The
former makes sure to add any predefined PATH elements to your additions,
the latter includes the current working directory in your path.

Try those, and then let me know if you still have problems. If you do,
can you post details about the specific errors you're seeing?

Thanks,

Rob

Rob Guglielmetti
National Renewable Energy Laboratory (NREL)
Commercial Buildings Research Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

On 10/13/12 3:15 PM, "KXZ7007 ......" <[email protected]<mailto: >> [email protected]>> wrote:

Hi all
I did try to run radiance in openstudio 9. However, the simulation did
stop. I think this problem is due to how I did the settings of RAYBATH and
PATH in "Environment Variables" .....
I did try to follow the instructions in 'Getting started with Radiance
OpenStudio,
put still I did not succeed in running radiance.
I did attach a picture which shows i did the settings and location of
radiance folder in my PC, and the way i use it to check the version of Ruby
that you I'm using.
I appreciate any advice regarding solving this problem
Thanks

_______________________________________________
Radiance-openstudio mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-openstudio

_______________________________________________
Radiance-openstudio mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-openstudio

37

Thanks Rob.
I did install the latest version of Radiance from:https://openstudio.nrel.gov/getting-started-developer/getting-started-radiance
however, I did not see any installed documentation.
Also I did what you mentioned in step no.2;
PATH: .;$PATH;c:\radiance\bin
RAYPTH: .;c:\Radiance\lib
and still, I have the same problem.
Regarding the error, i got 1 error which I could not find any detailes for such error, just i will get in the openstudio window,
that the Run has Failed, and Warning: 0 and Errors:1.
Thanks

···

________________________________
From: "Guglielmetti, Robert" <[email protected]>
To: KXZ7007 ...... <[email protected]>; Discussion of Radiance with OpenStudio <[email protected]>
Sent: Wednesday, October 17, 2012 7:24 PM
Subject: Re: [Radiance-openstudio] (no subject)
  
A couple of quick things to try:

1. Download the latest version of the Radiance installer (I can tell you're using an older version because you don't have the documentation installed)
2. For your PATH, you should add '$PATH' and '.' to that entry. The former makes sure to add any predefined PATH elements to your additions, the latter includes the current working directory in your path.

Try those, and then let me know if you still have problems. If you do, can you post details about the specific errors you're seeing?

Thanks,

Rob

Rob Guglielmetti
National Renewable Energy Laboratory (NREL)
Commercial Buildings Research Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

On 10/13/12 3:15 PM, "KXZ7007 ......" <[email protected]<mailto:[email protected]>> wrote:

Hi all
I did try to run radiance in openstudio 9. However, the simulation did stop. I think this problem is due to how I did the settings of RAYBATH and PATH in “Environment Variables” .....
I did try to follow the instructions in 'Getting started with Radiance https://openstudio.nrel.gov/getting-started-developer/getting-started-radiance, put still I did not succeed in running radiance.
I did attach a picture which shows i did the settings and location of radiance folder in my PC, and the way i use it to check the version of Ruby that you I'm using.
I appreciate any advice regarding solving this problem
Thanks

38

Hi all

Is there is a way to imported illumiance data that generated by radiance
into a spreadsheet program, as can be done when the illumiannce map
generated by EnergyPlus?

Thanks

Khalid

39

Hi Khalid,

Yes, the program saves the illuminance profiles to separate *.ill files, which have the 8760 illuminance map data in a CSL format, easily imported into Excel. If you used the "Use Radiance…" checkbox, then the data is located in this somewhat convoluted path:

your_model/run/0-ruby/out/files/in/model/radiance/output/ts/your_space/maps

The glare sensor output is also saved there.

Rob Guglielmetti
National Renewable Energy Laboratory (NREL)
Commercial Buildings Research Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

···

________________________________________
From: Khalid [[email protected]]
Sent: Thursday, December 06, 2012 11:58 AM
To: [email protected]
Subject: [Radiance-openstudio] (no subject)

Hi all
Is there is a way to imported illumiance data that generated by radiance into a spreadsheet program, as can be done when the illumiannce map generated by EnergyPlus?

Thanks

Khalid

40

Thanks Rob

···

-----Original Message-----
From: Guglielmetti, Robert [mailto:[email protected]]
Sent: 06 December 2012 22:30
To: Discussion of Radiance with OpenStudio
Subject: Re: [Radiance-openstudio] (no subject)

Hi Khalid,

Yes, the program saves the illuminance profiles to separate *.ill files,
which have the 8760 illuminance map data in a CSL format, easily imported
into Excel. If you used the "Use Radiance." checkbox, then the data is
located in this somewhat convoluted path:

your_model/run/0-ruby/out/files/in/model/radiance/output/ts/your_space/maps

The glare sensor output is also saved there.

Rob Guglielmetti
National Renewable Energy Laboratory (NREL) Commercial Buildings Research
Group
15013 Denver West Parkway MS:RSF202
Golden, CO 80401
303.275.4319
[email protected]

________________________________________
From: Khalid [[email protected]]
Sent: Thursday, December 06, 2012 11:58 AM
To: [email protected]
Subject: [Radiance-openstudio] (no subject)

Hi all
Is there is a way to imported illumiance data that generated by radiance
into a spreadsheet program, as can be done when the illumiannce map
generated by EnergyPlus?

Thanks

Khalid

_______________________________________________
Radiance-openstudio mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-openstudio
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