algorithmic modeling for Rhino


DIVA for Rhino

DIVA-for-Rhino is a plugin which runs thermal, daylight, solar radiation, and glare simulations. Our goal is to bring validated environmental simulations directly to the conceptual design environments of Rhino and Grasshopper.

Location: Boston, Minneapolis, New York
Members: 546
Latest Activity: Nov 1, 2019

Discussion Forum

"rtrace: warning - No light source found" message 4 Replies

Hi Guys,I get the message below when running a daylight illuminance analysis.This is strange as I have selected the Boston weather file and ran an analysis that worked well on Rhino. Just checking if…Continue

Tags: daylight, DIVA

Started by Arthur Mamou-Mani. Last reply by Marie de Klijn Nov 1, 2019.

Automate multiple simulations 5 Replies

Hi All,I am running a climate based daylight simulation for each floor of a multi-story building. A slider controls the floor that is being analysed (and helps generate a unique file name for the…Continue

Started by Elliot Glassman. Last reply by Christos Kollias Jul 2, 2019.

diva daylight

hi all , this message appears to me while running simulation , 1. Batch file written to directory:C:\Users\mhmod\Documents\DIVA\GH_Data\OpenOffice\NoShade\AnnualDaylightRun failed.The pipe has been…Continue

Started by MHMOD DEEP Jul 19, 2018.

Customizing automatic shade

I am a PhD student and I am using diva/grasshopper for doing daylight simulation.I want to ask about: how could I customize a kinetic shades and define it in Diva daylight analysis as a shading…Continue

Started by fatima belok May 31, 2018.

Comment Wall


You need to be a member of DIVA for Rhino to add comments!

Comment by mohammad on November 11, 2013 at 12:08pm
Comment by Michael Esposito on November 11, 2013 at 6:17am

You can find some great tutorials and user guides here:

Comment by mia on November 11, 2013 at 1:33am

hello, diva i was searching for tutorial but there are very few.. can u send me some links where i can get them.

thank you! 

Comment by Michael Esposito on September 20, 2013 at 10:23am


I'm also trying to look at MRT as an output from Viper/E+. I've tried editing the IDF file listed below but found that I was unable to load the Viper component in GH after making the suggested adjustments. I know how to generate the MRT output separate from Viper but it would be nice to parametrically output MRT through Viper. Any thoughts as to why I'm getting a load component error after adding the MRT field to the output file listed below? Thanks

Output:Variable,*,Zone Mean Radiant Temperature,hourly; !- Nickname=MRT [C]



Comment by Jeff Niemasz on April 5, 2013 at 4:14pm


We would need more information to troubleshoot - Did you already specify a locations, nodes, and material before you clicked the metrics button?  Did you go through the instructions on in the tutorial or use and of the instructional videos? Check out the site for the tutorial. If you are still getting the error with the DIVA toolbar in rhino I recommend posting a comment in the DIVA for rhino section of the diva4rhino site as this part of the plugin does not use grasshopper, maybe with a screenshot and uploading your model.

Hope that helps,


Comment by Thomas Walser on April 5, 2013 at 11:22am

Hi everybody,
I just got started with Diva, making the 'default' tutorial.

1. I set up the scene

2. When I press the 'Metrics' button to start the calculation I always get a runtime error>>


Source: Runtime error in Microsoft VBScript

Error: Index outside valid range: '[number: 1]' 

Line: 95

Char: 13



I run Rhino 5 Evaluation x64 (I used the file from the 64 bit folder to install DIVA)

Anyone knows, what I do wrong?



Comment by Jon Sargent on November 2, 2012 at 5:36pm

M NICK -- Add the following line to the output control file:

Output:Variable,*,Zone Mean Radiant Temperature,hourly; !- Nickname=MRT [C]

Assuming you have the latest version of DIVA, the output control file will be here: C:\DIVA\Thermal\Grasshopper\IDF_Components\v2.005\02_output_control.idf

After saving the file, the next Viper component you drop on the Grasshopper canvas should have MRT as an option in the Settings form under the Output Tab.


Comment by M NICK on November 2, 2012 at 5:23pm


Is there anyway that we can calculate Mean Radiant Temperature (MRT) by VIPER?

Thanks a lot

Comment by stefano vafiadis on October 30, 2012 at 4:05am

Hi Jon,

Thanks again for helping me!

I sent you the Ghs definition attached to this comment: i was trying to find out the problem and i simplified a little bit the shape, but it persist.

I really can't find any issue and Viper worked always perfectly.

I hope you will do!

Thanks again,


Comment by Jon Sargent on October 29, 2012 at 6:06pm

Hi Stefano,

I'm not sure a single-zone thermal model is the right way to analyze your Metaball structure.  Even if there were no internal partitions, the model would want to be divided into multiple convex zones, which, unfortunately, Viper cannot do.

The non-planarity warning is a separate issue.  In principle, it shouldn't happen if your surfaces are planar. If you post the definition I can take a look.



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