Wednesday, September 14, 2022

Simulate non-visual lighting in Grasshopper


New version of Lark Spectral Lighting Grasshopper plugin

Why is this relevant:

Our eyes have a dual function: they allow us to see, but they also mediate several psychological and physiological (non-visual) responses. Light reaching the eyes regulates circadian rhythms and affects alertness. Since we spend the majority of our time indoors, building designers have a responsibility to provide healthy indoor lighting. A simulation tool is now available to help meet this challenge.

New version of the Lark simulation tool:

Lark Spectral Lighting 2.0 is available on Food4Rhino with new features, components and templates to investigate non-visual lighting design. Lark is a plugin that helps architects, designers and researchers to investigate the effect of a lighting design on circadian rhythm and alertness.

The updates in Lark 2.0 include:
  • Ability to run daylight and/or electric light simulation
  • Calculation of spectral irradiance and output metrics relevant to the non-visual effects of light according to the CIE (α-opic metrics)
  • Analysis workflow that accounts for the direction in which light reaches the human eye, which is relevant for non-visual effects
  • Simulation of a period of light exposure and analysis to optimize alertness according to a light-driven biological model

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