This is version 2.0 of Lark Spectral Lighting, based upon Lark Spectral Lighting v1.0 for Grasshopper/Rhino environment, to investigate circadian, non-visual light. Lark is originally developed as a collaboration between Mehlika Inanici, Ph.D. (University of Washington) and ZGF Architects LLP. Modifications and new features in Lark Spectral Lighting v2.0 were developed by Clotilde Pierson, Ph.D. (EPFL, Oregon State University) and Myrta Gkaintatzi-Masouti, M.Sc. (Eindhoven University of Technology), 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.
The new features in Lark v2.0 include:
- the option to run daylight and/or electric light spectral simulations;
- the calculation of spectral irradiance and the αopic metrics defined by CIE;
- the spatial weighting of simulated HDR images to account for the direction at which light enters the human eye and the spatial sensitivity of the IIL responses;
- the simulation of timeseries of light exposures using a Radiance matrix-based method, which can be used as input to a non-visual direct response model.
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