Lark Spectral Lighting
(by martybrennan)
This is version 3.0 of Lark Spectral Lighting, based upon Lark Spectral Lighting v1.0 and v2.0 for Grasshopper/Rhino environment, to investigate non-visual light.
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This is version 3.0 of Lark Spectral Lighting, based upon Lark Spectral Lighting v1.0 and v2.0 for Grasshopper/Rhino environment, to investigate non-visual light. Lark was originally developed as a collaboration between University of Washington (Mehlika Inanici, Ph.D.) and ZGF Architects LLP. Modifications and new features in Lark Spectral Lighting v2.0 were developed by EPFL, Oregon State University (Clotilde Pierson, Ph.D.), and Eindhoven University of Technology (Myrta Gkaintatzi-Masouti, M.Sc.), with contributions from ZGF Architects LLP for the electric lighting simulation workflow and contributions from Priji Balakrishnan, Ph.D. and Alstan J. Jakubiec, Ph.D. for the implementation of the Perez sky model. Lark v3.0 was developed by Bo Jung, M.Sc., Mehlika Inanici, Ph.D., Zining Cheng, M.Sc. (University of Washington) and ZGF Architects LLP.

The new features in Lark v3.0 include:

  • Update to the 9-channel division bins (see license for details) **Due to this change, the components from previous versions should not be used in v.3.0.**. 
  • Option to calculate neuropic luminance and illuminances for 9 channel point in time simulations. 
  • Option to add spectra for the sun (previous version allowed adding spectra for the sky). 
  • Option to use either direct and diffuse irradiance (-W option in gendaylit) or global irradiance (-E option in gendaylit) when building radiance sky files. 
  • Option to use perez sky -C option based on luminance to color the sky (only available for 3 channel simulations)  
  • Option to save simulated results in a specified folder (previously "C:/lark/temp"). 
  • Update to “Lark Convert SPD” component to automatically read spectral intervals and ignore any text in the text file. The component also auto fills the missing spectral range within 380-780nm to match the previous number. i.e. if the data started from 385nm (0.8W/m2)  and reached to 780nm, 0.8W/m2 will be copied in the beginning so that 380nm to 384nm is also 0.8W/m2.

 

More information is available in the README file and at http://faculty.washington.edu/inanici/Lark/Lark_home_page.html

 

Tutorials can be found at https://www.youtube.com/channel/UC3hiIWgMCPn3JfBO6J9UUfw

 

Licensed under the Modified BSD-3-Clause (https://opensource.org/licenses/BSD-3-Clause); see LICENSE file.

 

Installation instructions can be found in the README file.

 

Source code and Discussion-forum page for all questions is available on GitHub at https://github.com/larkspectral/Lark_Spectral_Lighting

Please do not email with questions. 

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Title
Description
Platform
 
Lark Spectral Lighting v3.0
2023-09-10
Grasshopper for Rhino 7 for Win
Lark Spectral Lighting v2.0
2022-08-06
Grasshopper for Rhino 7 for Win
Lark Spectral Lighting v1.0
2022-04-22
Grasshopper for Rhino 7 for Win
Lark Spectral Lighting v0.0.2
2020-11-15
Grasshopper for Rhino 7 for Win
Lark Spectral Lighting v0.0.1
2022-08-06
Grasshopper for Rhino 4 & 5 for Win
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